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authorJoe Perches <joe@perches.com>2014-04-04 18:16:04 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-04-24 16:13:59 -0400
commit8dae693ca9f7337058dc564fb88b13e1e9358e37 (patch)
tree62f90f373b3280c9e00c7901ecc8352ed88bb780 /drivers/usb/misc
parent90ba4f79198e2da11e94d66f6c67cf7cbaf868ac (diff)
usb: ftdi-elan: Convert leading spaces to tabs
Use tabs for indentation. Use a more normal kernel comment style (align multiline *'s) git diff -w shows no differences Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/misc')
-rw-r--r--drivers/usb/misc/ftdi-elan.c4902
1 files changed, 2451 insertions, 2451 deletions
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index 314e5974c723..0487f8e1e817 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -1,40 +1,40 @@
1/* 1/*
2* USB FTDI client driver for Elan Digital Systems's Uxxx adapters 2 * USB FTDI client driver for Elan Digital Systems's Uxxx adapters
3* 3 *
4* Copyright(C) 2006 Elan Digital Systems Limited 4 * Copyright(C) 2006 Elan Digital Systems Limited
5* http://www.elandigitalsystems.com 5 * http://www.elandigitalsystems.com
6* 6 *
7* Author and Maintainer - Tony Olech - Elan Digital Systems 7 * Author and Maintainer - Tony Olech - Elan Digital Systems
8* tony.olech@elandigitalsystems.com 8 * tony.olech@elandigitalsystems.com
9* 9 *
10* This program is free software;you can redistribute it and/or 10 * This program is free software;you can redistribute it and/or
11* modify it under the terms of the GNU General Public License as 11 * modify it under the terms of the GNU General Public License as
12* published by the Free Software Foundation, version 2. 12 * published by the Free Software Foundation, version 2.
13* 13 *
14* 14 *
15* This driver was written by Tony Olech(tony.olech@elandigitalsystems.com) 15 * This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
16* based on various USB client drivers in the 2.6.15 linux kernel 16 * based on various USB client drivers in the 2.6.15 linux kernel
17* with constant reference to the 3rd Edition of Linux Device Drivers 17 * with constant reference to the 3rd Edition of Linux Device Drivers
18* published by O'Reilly 18 * published by O'Reilly
19* 19 *
20* The U132 adapter is a USB to CardBus adapter specifically designed 20 * The U132 adapter is a USB to CardBus adapter specifically designed
21* for PC cards that contain an OHCI host controller. Typical PC cards 21 * for PC cards that contain an OHCI host controller. Typical PC cards
22* are the Orange Mobile 3G Option GlobeTrotter Fusion card. 22 * are the Orange Mobile 3G Option GlobeTrotter Fusion card.
23* 23 *
24* The U132 adapter will *NOT *work with PC cards that do not contain 24 * The U132 adapter will *NOT *work with PC cards that do not contain
25* an OHCI controller. A simple way to test whether a PC card has an 25 * an OHCI controller. A simple way to test whether a PC card has an
26* OHCI controller as an interface is to insert the PC card directly 26 * OHCI controller as an interface is to insert the PC card directly
27* into a laptop(or desktop) with a CardBus slot and if "lspci" shows 27 * into a laptop(or desktop) with a CardBus slot and if "lspci" shows
28* a new USB controller and "lsusb -v" shows a new OHCI Host Controller 28 * a new USB controller and "lsusb -v" shows a new OHCI Host Controller
29* then there is a good chance that the U132 adapter will support the 29 * then there is a good chance that the U132 adapter will support the
30* PC card.(you also need the specific client driver for the PC card) 30 * PC card.(you also need the specific client driver for the PC card)
31* 31 *
32* Please inform the Author and Maintainer about any PC cards that 32 * Please inform the Author and Maintainer about any PC cards that
33* contain OHCI Host Controller and work when directly connected to 33 * contain OHCI Host Controller and work when directly connected to
34* an embedded CardBus slot but do not work when they are connected 34 * an embedded CardBus slot but do not work when they are connected
35* via an ELAN U132 adapter. 35 * via an ELAN U132 adapter.
36* 36 *
37*/ 37 */
38#include <linux/kernel.h> 38#include <linux/kernel.h>
39#include <linux/errno.h> 39#include <linux/errno.h>
40#include <linux/init.h> 40#include <linux/init.h>
@@ -56,30 +56,30 @@ MODULE_LICENSE("GPL");
56static bool distrust_firmware = 1; 56static bool distrust_firmware = 1;
57module_param(distrust_firmware, bool, 0); 57module_param(distrust_firmware, bool, 0);
58MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren" 58MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren"
59 "t setup"); 59 "t setup");
60extern struct platform_driver u132_platform_driver; 60extern struct platform_driver u132_platform_driver;
61static struct workqueue_struct *status_queue; 61static struct workqueue_struct *status_queue;
62static struct workqueue_struct *command_queue; 62static struct workqueue_struct *command_queue;
63static struct workqueue_struct *respond_queue; 63static struct workqueue_struct *respond_queue;
64/* 64/*
65* ftdi_module_lock exists to protect access to global variables 65 * ftdi_module_lock exists to protect access to global variables
66* 66 *
67*/ 67 */
68static struct mutex ftdi_module_lock; 68static struct mutex ftdi_module_lock;
69static int ftdi_instances = 0; 69static int ftdi_instances = 0;
70static struct list_head ftdi_static_list; 70static struct list_head ftdi_static_list;
71/* 71/*
72* end of the global variables protected by ftdi_module_lock 72 * end of the global variables protected by ftdi_module_lock
73*/ 73 */
74#include "usb_u132.h" 74#include "usb_u132.h"
75#include <asm/io.h> 75#include <asm/io.h>
76#include <linux/usb/hcd.h> 76#include <linux/usb/hcd.h>
77 77
78 /* FIXME ohci.h is ONLY for internal use by the OHCI driver. 78/* FIXME ohci.h is ONLY for internal use by the OHCI driver.
79 * If you're going to try stuff like this, you need to split 79 * If you're going to try stuff like this, you need to split
80 * out shareable stuff (register declarations?) into its own 80 * out shareable stuff (register declarations?) into its own
81 * file, maybe name <linux/usb/ohci.h> 81 * file, maybe name <linux/usb/ohci.h>
82 */ 82 */
83 83
84#include "../host/ohci.h" 84#include "../host/ohci.h"
85/* Define these values to match your devices*/ 85/* Define these values to match your devices*/
@@ -87,140 +87,140 @@ static struct list_head ftdi_static_list;
87#define USB_FTDI_ELAN_PRODUCT_ID 0xd6ea 87#define USB_FTDI_ELAN_PRODUCT_ID 0xd6ea
88/* table of devices that work with this driver*/ 88/* table of devices that work with this driver*/
89static const struct usb_device_id ftdi_elan_table[] = { 89static const struct usb_device_id ftdi_elan_table[] = {
90 {USB_DEVICE(USB_FTDI_ELAN_VENDOR_ID, USB_FTDI_ELAN_PRODUCT_ID)}, 90 {USB_DEVICE(USB_FTDI_ELAN_VENDOR_ID, USB_FTDI_ELAN_PRODUCT_ID)},
91 { /* Terminating entry */ } 91 { /* Terminating entry */ }
92}; 92};
93 93
94MODULE_DEVICE_TABLE(usb, ftdi_elan_table); 94MODULE_DEVICE_TABLE(usb, ftdi_elan_table);
95/* only the jtag(firmware upgrade device) interface requires 95/* only the jtag(firmware upgrade device) interface requires
96* a device file and corresponding minor number, but the 96 * a device file and corresponding minor number, but the
97* interface is created unconditionally - I suppose it could 97 * interface is created unconditionally - I suppose it could
98* be configured or not according to a module parameter. 98 * be configured or not according to a module parameter.
99* But since we(now) require one interface per device, 99 * But since we(now) require one interface per device,
100* and since it unlikely that a normal installation would 100 * and since it unlikely that a normal installation would
101* require more than a couple of elan-ftdi devices, 8 seems 101 * require more than a couple of elan-ftdi devices, 8 seems
102* like a reasonable limit to have here, and if someone 102 * like a reasonable limit to have here, and if someone
103* really requires more than 8 devices, then they can frig the 103 * really requires more than 8 devices, then they can frig the
104* code and recompile 104 * code and recompile
105*/ 105 */
106#define USB_FTDI_ELAN_MINOR_BASE 192 106#define USB_FTDI_ELAN_MINOR_BASE 192
107#define COMMAND_BITS 5 107#define COMMAND_BITS 5
108#define COMMAND_SIZE (1<<COMMAND_BITS) 108#define COMMAND_SIZE (1<<COMMAND_BITS)
109#define COMMAND_MASK (COMMAND_SIZE-1) 109#define COMMAND_MASK (COMMAND_SIZE-1)
110struct u132_command { 110struct u132_command {
111 u8 header; 111 u8 header;
112 u16 length; 112 u16 length;
113 u8 address; 113 u8 address;
114 u8 width; 114 u8 width;
115 u32 value; 115 u32 value;
116 int follows; 116 int follows;
117 void *buffer; 117 void *buffer;
118}; 118};
119#define RESPOND_BITS 5 119#define RESPOND_BITS 5
120#define RESPOND_SIZE (1<<RESPOND_BITS) 120#define RESPOND_SIZE (1<<RESPOND_BITS)
121#define RESPOND_MASK (RESPOND_SIZE-1) 121#define RESPOND_MASK (RESPOND_SIZE-1)
122struct u132_respond { 122struct u132_respond {
123 u8 header; 123 u8 header;
124 u8 address; 124 u8 address;
125 u32 *value; 125 u32 *value;
126 int *result; 126 int *result;
127 struct completion wait_completion; 127 struct completion wait_completion;
128}; 128};
129struct u132_target { 129struct u132_target {
130 void *endp; 130 void *endp;
131 struct urb *urb; 131 struct urb *urb;
132 int toggle_bits; 132 int toggle_bits;
133 int error_count; 133 int error_count;
134 int condition_code; 134 int condition_code;
135 int repeat_number; 135 int repeat_number;
136 int halted; 136 int halted;
137 int skipped; 137 int skipped;
138 int actual; 138 int actual;
139 int non_null; 139 int non_null;
140 int active; 140 int active;
141 int abandoning; 141 int abandoning;
142 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 142 void (*callback)(void *endp, struct urb *urb, u8 *buf, int len,
143 int toggle_bits, int error_count, int condition_code, 143 int toggle_bits, int error_count, int condition_code,
144 int repeat_number, int halted, int skipped, int actual, 144 int repeat_number, int halted, int skipped, int actual,
145 int non_null); 145 int non_null);
146}; 146};
147/* Structure to hold all of our device specific stuff*/ 147/* Structure to hold all of our device specific stuff*/
148struct usb_ftdi { 148struct usb_ftdi {
149 struct list_head ftdi_list; 149 struct list_head ftdi_list;
150 struct mutex u132_lock; 150 struct mutex u132_lock;
151 int command_next; 151 int command_next;
152 int command_head; 152 int command_head;
153 struct u132_command command[COMMAND_SIZE]; 153 struct u132_command command[COMMAND_SIZE];
154 int respond_next; 154 int respond_next;
155 int respond_head; 155 int respond_head;
156 struct u132_respond respond[RESPOND_SIZE]; 156 struct u132_respond respond[RESPOND_SIZE];
157 struct u132_target target[4]; 157 struct u132_target target[4];
158 char device_name[16]; 158 char device_name[16];
159 unsigned synchronized:1; 159 unsigned synchronized:1;
160 unsigned enumerated:1; 160 unsigned enumerated:1;
161 unsigned registered:1; 161 unsigned registered:1;
162 unsigned initialized:1; 162 unsigned initialized:1;
163 unsigned card_ejected:1; 163 unsigned card_ejected:1;
164 int function; 164 int function;
165 int sequence_num; 165 int sequence_num;
166 int disconnected; 166 int disconnected;
167 int gone_away; 167 int gone_away;
168 int stuck_status; 168 int stuck_status;
169 int status_queue_delay; 169 int status_queue_delay;
170 struct semaphore sw_lock; 170 struct semaphore sw_lock;
171 struct usb_device *udev; 171 struct usb_device *udev;
172 struct usb_interface *interface; 172 struct usb_interface *interface;
173 struct usb_class_driver *class; 173 struct usb_class_driver *class;
174 struct delayed_work status_work; 174 struct delayed_work status_work;
175 struct delayed_work command_work; 175 struct delayed_work command_work;
176 struct delayed_work respond_work; 176 struct delayed_work respond_work;
177 struct u132_platform_data platform_data; 177 struct u132_platform_data platform_data;
178 struct resource resources[0]; 178 struct resource resources[0];
179 struct platform_device platform_dev; 179 struct platform_device platform_dev;
180 unsigned char *bulk_in_buffer; 180 unsigned char *bulk_in_buffer;
181 size_t bulk_in_size; 181 size_t bulk_in_size;
182 size_t bulk_in_last; 182 size_t bulk_in_last;
183 size_t bulk_in_left; 183 size_t bulk_in_left;
184 __u8 bulk_in_endpointAddr; 184 __u8 bulk_in_endpointAddr;
185 __u8 bulk_out_endpointAddr; 185 __u8 bulk_out_endpointAddr;
186 struct kref kref; 186 struct kref kref;
187 u32 controlreg; 187 u32 controlreg;
188 u8 response[4 + 1024]; 188 u8 response[4 + 1024];
189 int expected; 189 int expected;
190 int received; 190 int received;
191 int ed_found; 191 int ed_found;
192}; 192};
193#define kref_to_usb_ftdi(d) container_of(d, struct usb_ftdi, kref) 193#define kref_to_usb_ftdi(d) container_of(d, struct usb_ftdi, kref)
194#define platform_device_to_usb_ftdi(d) container_of(d, struct usb_ftdi, \ 194#define platform_device_to_usb_ftdi(d) container_of(d, struct usb_ftdi, \
195 platform_dev) 195 platform_dev)
196static struct usb_driver ftdi_elan_driver; 196static struct usb_driver ftdi_elan_driver;
197static void ftdi_elan_delete(struct kref *kref) 197static void ftdi_elan_delete(struct kref *kref)
198{ 198{
199 struct usb_ftdi *ftdi = kref_to_usb_ftdi(kref); 199 struct usb_ftdi *ftdi = kref_to_usb_ftdi(kref);
200 dev_warn(&ftdi->udev->dev, "FREEING ftdi=%p\n", ftdi); 200 dev_warn(&ftdi->udev->dev, "FREEING ftdi=%p\n", ftdi);
201 usb_put_dev(ftdi->udev); 201 usb_put_dev(ftdi->udev);
202 ftdi->disconnected += 1; 202 ftdi->disconnected += 1;
203 mutex_lock(&ftdi_module_lock); 203 mutex_lock(&ftdi_module_lock);
204 list_del_init(&ftdi->ftdi_list); 204 list_del_init(&ftdi->ftdi_list);
205 ftdi_instances -= 1; 205 ftdi_instances -= 1;
206 mutex_unlock(&ftdi_module_lock); 206 mutex_unlock(&ftdi_module_lock);
207 kfree(ftdi->bulk_in_buffer); 207 kfree(ftdi->bulk_in_buffer);
208 ftdi->bulk_in_buffer = NULL; 208 ftdi->bulk_in_buffer = NULL;
209} 209}
210 210
211static void ftdi_elan_put_kref(struct usb_ftdi *ftdi) 211static void ftdi_elan_put_kref(struct usb_ftdi *ftdi)
212{ 212{
213 kref_put(&ftdi->kref, ftdi_elan_delete); 213 kref_put(&ftdi->kref, ftdi_elan_delete);
214} 214}
215 215
216static void ftdi_elan_get_kref(struct usb_ftdi *ftdi) 216static void ftdi_elan_get_kref(struct usb_ftdi *ftdi)
217{ 217{
218 kref_get(&ftdi->kref); 218 kref_get(&ftdi->kref);
219} 219}
220 220
221static void ftdi_elan_init_kref(struct usb_ftdi *ftdi) 221static void ftdi_elan_init_kref(struct usb_ftdi *ftdi)
222{ 222{
223 kref_init(&ftdi->kref); 223 kref_init(&ftdi->kref);
224} 224}
225 225
226static void ftdi_status_requeue_work(struct usb_ftdi *ftdi, unsigned int delta) 226static void ftdi_status_requeue_work(struct usb_ftdi *ftdi, unsigned int delta)
@@ -237,8 +237,8 @@ static void ftdi_status_queue_work(struct usb_ftdi *ftdi, unsigned int delta)
237 237
238static void ftdi_status_cancel_work(struct usb_ftdi *ftdi) 238static void ftdi_status_cancel_work(struct usb_ftdi *ftdi)
239{ 239{
240 if (cancel_delayed_work(&ftdi->status_work)) 240 if (cancel_delayed_work(&ftdi->status_work))
241 kref_put(&ftdi->kref, ftdi_elan_delete); 241 kref_put(&ftdi->kref, ftdi_elan_delete);
242} 242}
243 243
244static void ftdi_command_requeue_work(struct usb_ftdi *ftdi, unsigned int delta) 244static void ftdi_command_requeue_work(struct usb_ftdi *ftdi, unsigned int delta)
@@ -255,12 +255,12 @@ static void ftdi_command_queue_work(struct usb_ftdi *ftdi, unsigned int delta)
255 255
256static void ftdi_command_cancel_work(struct usb_ftdi *ftdi) 256static void ftdi_command_cancel_work(struct usb_ftdi *ftdi)
257{ 257{
258 if (cancel_delayed_work(&ftdi->command_work)) 258 if (cancel_delayed_work(&ftdi->command_work))
259 kref_put(&ftdi->kref, ftdi_elan_delete); 259 kref_put(&ftdi->kref, ftdi_elan_delete);
260} 260}
261 261
262static void ftdi_response_requeue_work(struct usb_ftdi *ftdi, 262static void ftdi_response_requeue_work(struct usb_ftdi *ftdi,
263 unsigned int delta) 263 unsigned int delta)
264{ 264{
265 if (!queue_delayed_work(respond_queue, &ftdi->respond_work, delta)) 265 if (!queue_delayed_work(respond_queue, &ftdi->respond_work, delta))
266 kref_put(&ftdi->kref, ftdi_elan_delete); 266 kref_put(&ftdi->kref, ftdi_elan_delete);
@@ -274,26 +274,26 @@ static void ftdi_respond_queue_work(struct usb_ftdi *ftdi, unsigned int delta)
274 274
275static void ftdi_response_cancel_work(struct usb_ftdi *ftdi) 275static void ftdi_response_cancel_work(struct usb_ftdi *ftdi)
276{ 276{
277 if (cancel_delayed_work(&ftdi->respond_work)) 277 if (cancel_delayed_work(&ftdi->respond_work))
278 kref_put(&ftdi->kref, ftdi_elan_delete); 278 kref_put(&ftdi->kref, ftdi_elan_delete);
279} 279}
280 280
281void ftdi_elan_gone_away(struct platform_device *pdev) 281void ftdi_elan_gone_away(struct platform_device *pdev)
282{ 282{
283 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); 283 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
284 ftdi->gone_away += 1; 284 ftdi->gone_away += 1;
285 ftdi_elan_put_kref(ftdi); 285 ftdi_elan_put_kref(ftdi);
286} 286}
287 287
288 288
289EXPORT_SYMBOL_GPL(ftdi_elan_gone_away); 289EXPORT_SYMBOL_GPL(ftdi_elan_gone_away);
290static void ftdi_release_platform_dev(struct device *dev) 290static void ftdi_release_platform_dev(struct device *dev)
291{ 291{
292 dev->parent = NULL; 292 dev->parent = NULL;
293} 293}
294 294
295static void ftdi_elan_do_callback(struct usb_ftdi *ftdi, 295static void ftdi_elan_do_callback(struct usb_ftdi *ftdi,
296 struct u132_target *target, u8 *buffer, int length); 296 struct u132_target *target, u8 *buffer, int length);
297static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi); 297static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi);
298static void ftdi_elan_kick_respond_queue(struct usb_ftdi *ftdi); 298static void ftdi_elan_kick_respond_queue(struct usb_ftdi *ftdi);
299static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi); 299static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi);
@@ -305,421 +305,421 @@ static int ftdi_elan_command_engine(struct usb_ftdi *ftdi);
305static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi); 305static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi);
306static int ftdi_elan_hcd_init(struct usb_ftdi *ftdi) 306static int ftdi_elan_hcd_init(struct usb_ftdi *ftdi)
307{ 307{
308 int result; 308 int result;
309 if (ftdi->platform_dev.dev.parent) 309 if (ftdi->platform_dev.dev.parent)
310 return -EBUSY; 310 return -EBUSY;
311 ftdi_elan_get_kref(ftdi); 311 ftdi_elan_get_kref(ftdi);
312 ftdi->platform_data.potpg = 100; 312 ftdi->platform_data.potpg = 100;
313 ftdi->platform_data.reset = NULL; 313 ftdi->platform_data.reset = NULL;
314 ftdi->platform_dev.id = ftdi->sequence_num; 314 ftdi->platform_dev.id = ftdi->sequence_num;
315 ftdi->platform_dev.resource = ftdi->resources; 315 ftdi->platform_dev.resource = ftdi->resources;
316 ftdi->platform_dev.num_resources = ARRAY_SIZE(ftdi->resources); 316 ftdi->platform_dev.num_resources = ARRAY_SIZE(ftdi->resources);
317 ftdi->platform_dev.dev.platform_data = &ftdi->platform_data; 317 ftdi->platform_dev.dev.platform_data = &ftdi->platform_data;
318 ftdi->platform_dev.dev.parent = NULL; 318 ftdi->platform_dev.dev.parent = NULL;
319 ftdi->platform_dev.dev.release = ftdi_release_platform_dev; 319 ftdi->platform_dev.dev.release = ftdi_release_platform_dev;
320 ftdi->platform_dev.dev.dma_mask = NULL; 320 ftdi->platform_dev.dev.dma_mask = NULL;
321 snprintf(ftdi->device_name, sizeof(ftdi->device_name), "u132_hcd"); 321 snprintf(ftdi->device_name, sizeof(ftdi->device_name), "u132_hcd");
322 ftdi->platform_dev.name = ftdi->device_name; 322 ftdi->platform_dev.name = ftdi->device_name;
323 dev_info(&ftdi->udev->dev, "requesting module '%s'\n", "u132_hcd"); 323 dev_info(&ftdi->udev->dev, "requesting module '%s'\n", "u132_hcd");
324 request_module("u132_hcd"); 324 request_module("u132_hcd");
325 dev_info(&ftdi->udev->dev, "registering '%s'\n", 325 dev_info(&ftdi->udev->dev, "registering '%s'\n",
326 ftdi->platform_dev.name); 326 ftdi->platform_dev.name);
327 result = platform_device_register(&ftdi->platform_dev); 327 result = platform_device_register(&ftdi->platform_dev);
328 return result; 328 return result;
329} 329}
330 330
331static void ftdi_elan_abandon_completions(struct usb_ftdi *ftdi) 331static void ftdi_elan_abandon_completions(struct usb_ftdi *ftdi)
332{ 332{
333 mutex_lock(&ftdi->u132_lock); 333 mutex_lock(&ftdi->u132_lock);
334 while (ftdi->respond_next > ftdi->respond_head) { 334 while (ftdi->respond_next > ftdi->respond_head) {
335 struct u132_respond *respond = &ftdi->respond[RESPOND_MASK & 335 struct u132_respond *respond = &ftdi->respond[RESPOND_MASK &
336 ftdi->respond_head++]; 336 ftdi->respond_head++];
337 *respond->result = -ESHUTDOWN; 337 *respond->result = -ESHUTDOWN;
338 *respond->value = 0; 338 *respond->value = 0;
339 complete(&respond->wait_completion); 339 complete(&respond->wait_completion);
340 } mutex_unlock(&ftdi->u132_lock); 340 } mutex_unlock(&ftdi->u132_lock);
341} 341}
342 342
343static void ftdi_elan_abandon_targets(struct usb_ftdi *ftdi) 343static void ftdi_elan_abandon_targets(struct usb_ftdi *ftdi)
344{ 344{
345 int ed_number = 4; 345 int ed_number = 4;
346 mutex_lock(&ftdi->u132_lock); 346 mutex_lock(&ftdi->u132_lock);
347 while (ed_number-- > 0) { 347 while (ed_number-- > 0) {
348 struct u132_target *target = &ftdi->target[ed_number]; 348 struct u132_target *target = &ftdi->target[ed_number];
349 if (target->active == 1) { 349 if (target->active == 1) {
350 target->condition_code = TD_DEVNOTRESP; 350 target->condition_code = TD_DEVNOTRESP;
351 mutex_unlock(&ftdi->u132_lock); 351 mutex_unlock(&ftdi->u132_lock);
352 ftdi_elan_do_callback(ftdi, target, NULL, 0); 352 ftdi_elan_do_callback(ftdi, target, NULL, 0);
353 mutex_lock(&ftdi->u132_lock); 353 mutex_lock(&ftdi->u132_lock);
354 } 354 }
355 } 355 }
356 ftdi->received = 0; 356 ftdi->received = 0;
357 ftdi->expected = 4; 357 ftdi->expected = 4;
358 ftdi->ed_found = 0; 358 ftdi->ed_found = 0;
359 mutex_unlock(&ftdi->u132_lock); 359 mutex_unlock(&ftdi->u132_lock);
360} 360}
361 361
362static void ftdi_elan_flush_targets(struct usb_ftdi *ftdi) 362static void ftdi_elan_flush_targets(struct usb_ftdi *ftdi)
363{ 363{
364 int ed_number = 4; 364 int ed_number = 4;
365 mutex_lock(&ftdi->u132_lock); 365 mutex_lock(&ftdi->u132_lock);
366 while (ed_number-- > 0) { 366 while (ed_number-- > 0) {
367 struct u132_target *target = &ftdi->target[ed_number]; 367 struct u132_target *target = &ftdi->target[ed_number];
368 target->abandoning = 1; 368 target->abandoning = 1;
369 wait_1:if (target->active == 1) { 369 wait_1:if (target->active == 1) {
370 int command_size = ftdi->command_next - 370 int command_size = ftdi->command_next -
371 ftdi->command_head; 371 ftdi->command_head;
372 if (command_size < COMMAND_SIZE) { 372 if (command_size < COMMAND_SIZE) {
373 struct u132_command *command = &ftdi->command[ 373 struct u132_command *command = &ftdi->command[
374 COMMAND_MASK & ftdi->command_next]; 374 COMMAND_MASK & ftdi->command_next];
375 command->header = 0x80 | (ed_number << 5) | 0x4; 375 command->header = 0x80 | (ed_number << 5) | 0x4;
376 command->length = 0x00; 376 command->length = 0x00;
377 command->address = 0x00; 377 command->address = 0x00;
378 command->width = 0x00; 378 command->width = 0x00;
379 command->follows = 0; 379 command->follows = 0;
380 command->value = 0; 380 command->value = 0;
381 command->buffer = &command->value; 381 command->buffer = &command->value;
382 ftdi->command_next += 1; 382 ftdi->command_next += 1;
383 ftdi_elan_kick_command_queue(ftdi); 383 ftdi_elan_kick_command_queue(ftdi);
384 } else { 384 } else {
385 mutex_unlock(&ftdi->u132_lock); 385 mutex_unlock(&ftdi->u132_lock);
386 msleep(100); 386 msleep(100);
387 mutex_lock(&ftdi->u132_lock); 387 mutex_lock(&ftdi->u132_lock);
388 goto wait_1; 388 goto wait_1;
389 } 389 }
390 } 390 }
391 wait_2:if (target->active == 1) { 391 wait_2:if (target->active == 1) {
392 int command_size = ftdi->command_next - 392 int command_size = ftdi->command_next -
393 ftdi->command_head; 393 ftdi->command_head;
394 if (command_size < COMMAND_SIZE) { 394 if (command_size < COMMAND_SIZE) {
395 struct u132_command *command = &ftdi->command[ 395 struct u132_command *command = &ftdi->command[
396 COMMAND_MASK & ftdi->command_next]; 396 COMMAND_MASK & ftdi->command_next];
397 command->header = 0x90 | (ed_number << 5); 397 command->header = 0x90 | (ed_number << 5);
398 command->length = 0x00; 398 command->length = 0x00;
399 command->address = 0x00; 399 command->address = 0x00;
400 command->width = 0x00; 400 command->width = 0x00;
401 command->follows = 0; 401 command->follows = 0;
402 command->value = 0; 402 command->value = 0;
403 command->buffer = &command->value; 403 command->buffer = &command->value;
404 ftdi->command_next += 1; 404 ftdi->command_next += 1;
405 ftdi_elan_kick_command_queue(ftdi); 405 ftdi_elan_kick_command_queue(ftdi);
406 } else { 406 } else {
407 mutex_unlock(&ftdi->u132_lock); 407 mutex_unlock(&ftdi->u132_lock);
408 msleep(100); 408 msleep(100);
409 mutex_lock(&ftdi->u132_lock); 409 mutex_lock(&ftdi->u132_lock);
410 goto wait_2; 410 goto wait_2;
411 } 411 }
412 } 412 }
413 } 413 }
414 ftdi->received = 0; 414 ftdi->received = 0;
415 ftdi->expected = 4; 415 ftdi->expected = 4;
416 ftdi->ed_found = 0; 416 ftdi->ed_found = 0;
417 mutex_unlock(&ftdi->u132_lock); 417 mutex_unlock(&ftdi->u132_lock);
418} 418}
419 419
420static void ftdi_elan_cancel_targets(struct usb_ftdi *ftdi) 420static void ftdi_elan_cancel_targets(struct usb_ftdi *ftdi)
421{ 421{
422 int ed_number = 4; 422 int ed_number = 4;
423 mutex_lock(&ftdi->u132_lock); 423 mutex_lock(&ftdi->u132_lock);
424 while (ed_number-- > 0) { 424 while (ed_number-- > 0) {
425 struct u132_target *target = &ftdi->target[ed_number]; 425 struct u132_target *target = &ftdi->target[ed_number];
426 target->abandoning = 1; 426 target->abandoning = 1;
427 wait:if (target->active == 1) { 427 wait:if (target->active == 1) {
428 int command_size = ftdi->command_next - 428 int command_size = ftdi->command_next -
429 ftdi->command_head; 429 ftdi->command_head;
430 if (command_size < COMMAND_SIZE) { 430 if (command_size < COMMAND_SIZE) {
431 struct u132_command *command = &ftdi->command[ 431 struct u132_command *command = &ftdi->command[
432 COMMAND_MASK & ftdi->command_next]; 432 COMMAND_MASK & ftdi->command_next];
433 command->header = 0x80 | (ed_number << 5) | 0x4; 433 command->header = 0x80 | (ed_number << 5) | 0x4;
434 command->length = 0x00; 434 command->length = 0x00;
435 command->address = 0x00; 435 command->address = 0x00;
436 command->width = 0x00; 436 command->width = 0x00;
437 command->follows = 0; 437 command->follows = 0;
438 command->value = 0; 438 command->value = 0;
439 command->buffer = &command->value; 439 command->buffer = &command->value;
440 ftdi->command_next += 1; 440 ftdi->command_next += 1;
441 ftdi_elan_kick_command_queue(ftdi); 441 ftdi_elan_kick_command_queue(ftdi);
442 } else { 442 } else {
443 mutex_unlock(&ftdi->u132_lock); 443 mutex_unlock(&ftdi->u132_lock);
444 msleep(100); 444 msleep(100);
445 mutex_lock(&ftdi->u132_lock); 445 mutex_lock(&ftdi->u132_lock);
446 goto wait; 446 goto wait;
447 } 447 }
448 } 448 }
449 } 449 }
450 ftdi->received = 0; 450 ftdi->received = 0;
451 ftdi->expected = 4; 451 ftdi->expected = 4;
452 ftdi->ed_found = 0; 452 ftdi->ed_found = 0;
453 mutex_unlock(&ftdi->u132_lock); 453 mutex_unlock(&ftdi->u132_lock);
454} 454}
455 455
456static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi) 456static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi)
457{ 457{
458 ftdi_command_queue_work(ftdi, 0); 458 ftdi_command_queue_work(ftdi, 0);
459} 459}
460 460
461static void ftdi_elan_command_work(struct work_struct *work) 461static void ftdi_elan_command_work(struct work_struct *work)
462{ 462{
463 struct usb_ftdi *ftdi = 463 struct usb_ftdi *ftdi =
464 container_of(work, struct usb_ftdi, command_work.work); 464 container_of(work, struct usb_ftdi, command_work.work);
465 465
466 if (ftdi->disconnected > 0) { 466 if (ftdi->disconnected > 0) {
467 ftdi_elan_put_kref(ftdi); 467 ftdi_elan_put_kref(ftdi);
468 return; 468 return;
469 } else { 469 } else {
470 int retval = ftdi_elan_command_engine(ftdi); 470 int retval = ftdi_elan_command_engine(ftdi);
471 if (retval == -ESHUTDOWN) { 471 if (retval == -ESHUTDOWN) {
472 ftdi->disconnected += 1; 472 ftdi->disconnected += 1;
473 } else if (retval == -ENODEV) { 473 } else if (retval == -ENODEV) {
474 ftdi->disconnected += 1; 474 ftdi->disconnected += 1;
475 } else if (retval) 475 } else if (retval)
476 dev_err(&ftdi->udev->dev, "command error %d\n", retval); 476 dev_err(&ftdi->udev->dev, "command error %d\n", retval);
477 ftdi_command_requeue_work(ftdi, msecs_to_jiffies(10)); 477 ftdi_command_requeue_work(ftdi, msecs_to_jiffies(10));
478 return; 478 return;
479 } 479 }
480} 480}
481 481
482static void ftdi_elan_kick_respond_queue(struct usb_ftdi *ftdi) 482static void ftdi_elan_kick_respond_queue(struct usb_ftdi *ftdi)
483{ 483{
484 ftdi_respond_queue_work(ftdi, 0); 484 ftdi_respond_queue_work(ftdi, 0);
485} 485}
486 486
487static void ftdi_elan_respond_work(struct work_struct *work) 487static void ftdi_elan_respond_work(struct work_struct *work)
488{ 488{
489 struct usb_ftdi *ftdi = 489 struct usb_ftdi *ftdi =
490 container_of(work, struct usb_ftdi, respond_work.work); 490 container_of(work, struct usb_ftdi, respond_work.work);
491 if (ftdi->disconnected > 0) { 491 if (ftdi->disconnected > 0) {
492 ftdi_elan_put_kref(ftdi); 492 ftdi_elan_put_kref(ftdi);
493 return; 493 return;
494 } else { 494 } else {
495 int retval = ftdi_elan_respond_engine(ftdi); 495 int retval = ftdi_elan_respond_engine(ftdi);
496 if (retval == 0) { 496 if (retval == 0) {
497 } else if (retval == -ESHUTDOWN) { 497 } else if (retval == -ESHUTDOWN) {
498 ftdi->disconnected += 1; 498 ftdi->disconnected += 1;
499 } else if (retval == -ENODEV) { 499 } else if (retval == -ENODEV) {
500 ftdi->disconnected += 1; 500 ftdi->disconnected += 1;
501 } else if (retval == -EILSEQ) { 501 } else if (retval == -EILSEQ) {
502 ftdi->disconnected += 1; 502 ftdi->disconnected += 1;
503 } else { 503 } else {
504 ftdi->disconnected += 1; 504 ftdi->disconnected += 1;
505 dev_err(&ftdi->udev->dev, "respond error %d\n", retval); 505 dev_err(&ftdi->udev->dev, "respond error %d\n", retval);
506 } 506 }
507 if (ftdi->disconnected > 0) { 507 if (ftdi->disconnected > 0) {
508 ftdi_elan_abandon_completions(ftdi); 508 ftdi_elan_abandon_completions(ftdi);
509 ftdi_elan_abandon_targets(ftdi); 509 ftdi_elan_abandon_targets(ftdi);
510 } 510 }
511 ftdi_response_requeue_work(ftdi, msecs_to_jiffies(10)); 511 ftdi_response_requeue_work(ftdi, msecs_to_jiffies(10));
512 return; 512 return;
513 } 513 }
514} 514}
515 515
516 516
517/* 517/*
518* the sw_lock is initially held and will be freed 518 * the sw_lock is initially held and will be freed
519* after the FTDI has been synchronized 519 * after the FTDI has been synchronized
520* 520 *
521*/ 521 */
522static void ftdi_elan_status_work(struct work_struct *work) 522static void ftdi_elan_status_work(struct work_struct *work)
523{ 523{
524 struct usb_ftdi *ftdi = 524 struct usb_ftdi *ftdi =
525 container_of(work, struct usb_ftdi, status_work.work); 525 container_of(work, struct usb_ftdi, status_work.work);
526 int work_delay_in_msec = 0; 526 int work_delay_in_msec = 0;
527 if (ftdi->disconnected > 0) { 527 if (ftdi->disconnected > 0) {
528 ftdi_elan_put_kref(ftdi); 528 ftdi_elan_put_kref(ftdi);
529 return; 529 return;
530 } else if (ftdi->synchronized == 0) { 530 } else if (ftdi->synchronized == 0) {
531 down(&ftdi->sw_lock); 531 down(&ftdi->sw_lock);
532 if (ftdi_elan_synchronize(ftdi) == 0) { 532 if (ftdi_elan_synchronize(ftdi) == 0) {
533 ftdi->synchronized = 1; 533 ftdi->synchronized = 1;
534 ftdi_command_queue_work(ftdi, 1); 534 ftdi_command_queue_work(ftdi, 1);
535 ftdi_respond_queue_work(ftdi, 1); 535 ftdi_respond_queue_work(ftdi, 1);
536 up(&ftdi->sw_lock); 536 up(&ftdi->sw_lock);
537 work_delay_in_msec = 100; 537 work_delay_in_msec = 100;
538 } else { 538 } else {
539 dev_err(&ftdi->udev->dev, "synchronize failed\n"); 539 dev_err(&ftdi->udev->dev, "synchronize failed\n");
540 up(&ftdi->sw_lock); 540 up(&ftdi->sw_lock);
541 work_delay_in_msec = 10 *1000; 541 work_delay_in_msec = 10 *1000;
542 } 542 }
543 } else if (ftdi->stuck_status > 0) { 543 } else if (ftdi->stuck_status > 0) {
544 if (ftdi_elan_stuck_waiting(ftdi) == 0) { 544 if (ftdi_elan_stuck_waiting(ftdi) == 0) {
545 ftdi->stuck_status = 0; 545 ftdi->stuck_status = 0;
546 ftdi->synchronized = 0; 546 ftdi->synchronized = 0;
547 } else if ((ftdi->stuck_status++ % 60) == 1) { 547 } else if ((ftdi->stuck_status++ % 60) == 1) {
548 dev_err(&ftdi->udev->dev, "WRONG type of card inserted " 548 dev_err(&ftdi->udev->dev, "WRONG type of card inserted "
549 "- please remove\n"); 549 "- please remove\n");
550 } else 550 } else
551 dev_err(&ftdi->udev->dev, "WRONG type of card inserted " 551 dev_err(&ftdi->udev->dev, "WRONG type of card inserted "
552 "- checked %d times\n", ftdi->stuck_status); 552 "- checked %d times\n", ftdi->stuck_status);
553 work_delay_in_msec = 100; 553 work_delay_in_msec = 100;
554 } else if (ftdi->enumerated == 0) { 554 } else if (ftdi->enumerated == 0) {
555 if (ftdi_elan_enumeratePCI(ftdi) == 0) { 555 if (ftdi_elan_enumeratePCI(ftdi) == 0) {
556 ftdi->enumerated = 1; 556 ftdi->enumerated = 1;
557 work_delay_in_msec = 250; 557 work_delay_in_msec = 250;
558 } else 558 } else
559 work_delay_in_msec = 1000; 559 work_delay_in_msec = 1000;
560 } else if (ftdi->initialized == 0) { 560 } else if (ftdi->initialized == 0) {
561 if (ftdi_elan_setupOHCI(ftdi) == 0) { 561 if (ftdi_elan_setupOHCI(ftdi) == 0) {
562 ftdi->initialized = 1; 562 ftdi->initialized = 1;
563 work_delay_in_msec = 500; 563 work_delay_in_msec = 500;
564 } else { 564 } else {
565 dev_err(&ftdi->udev->dev, "initialized failed - trying " 565 dev_err(&ftdi->udev->dev, "initialized failed - trying "
566 "again in 10 seconds\n"); 566 "again in 10 seconds\n");
567 work_delay_in_msec = 1 *1000; 567 work_delay_in_msec = 1 *1000;
568 } 568 }
569 } else if (ftdi->registered == 0) { 569 } else if (ftdi->registered == 0) {
570 work_delay_in_msec = 10; 570 work_delay_in_msec = 10;
571 if (ftdi_elan_hcd_init(ftdi) == 0) { 571 if (ftdi_elan_hcd_init(ftdi) == 0) {
572 ftdi->registered = 1; 572 ftdi->registered = 1;
573 } else 573 } else
574 dev_err(&ftdi->udev->dev, "register failed\n"); 574 dev_err(&ftdi->udev->dev, "register failed\n");
575 work_delay_in_msec = 250; 575 work_delay_in_msec = 250;
576 } else { 576 } else {
577 if (ftdi_elan_checkingPCI(ftdi) == 0) { 577 if (ftdi_elan_checkingPCI(ftdi) == 0) {
578 work_delay_in_msec = 250; 578 work_delay_in_msec = 250;
579 } else if (ftdi->controlreg & 0x00400000) { 579 } else if (ftdi->controlreg & 0x00400000) {
580 if (ftdi->gone_away > 0) { 580 if (ftdi->gone_away > 0) {
581 dev_err(&ftdi->udev->dev, "PCI device eject con" 581 dev_err(&ftdi->udev->dev, "PCI device eject con"
582 "firmed platform_dev.dev.parent=%p plat" 582 "firmed platform_dev.dev.parent=%p plat"
583 "form_dev.dev=%p\n", 583 "form_dev.dev=%p\n",
584 ftdi->platform_dev.dev.parent, 584 ftdi->platform_dev.dev.parent,
585 &ftdi->platform_dev.dev); 585 &ftdi->platform_dev.dev);
586 platform_device_unregister(&ftdi->platform_dev); 586 platform_device_unregister(&ftdi->platform_dev);
587 ftdi->platform_dev.dev.parent = NULL; 587 ftdi->platform_dev.dev.parent = NULL;
588 ftdi->registered = 0; 588 ftdi->registered = 0;
589 ftdi->enumerated = 0; 589 ftdi->enumerated = 0;
590 ftdi->card_ejected = 0; 590 ftdi->card_ejected = 0;
591 ftdi->initialized = 0; 591 ftdi->initialized = 0;
592 ftdi->gone_away = 0; 592 ftdi->gone_away = 0;
593 } else 593 } else
594 ftdi_elan_flush_targets(ftdi); 594 ftdi_elan_flush_targets(ftdi);
595 work_delay_in_msec = 250; 595 work_delay_in_msec = 250;
596 } else { 596 } else {
597 dev_err(&ftdi->udev->dev, "PCI device has disappeared\n" 597 dev_err(&ftdi->udev->dev, "PCI device has disappeared\n"
598 ); 598 );
599 ftdi_elan_cancel_targets(ftdi); 599 ftdi_elan_cancel_targets(ftdi);
600 work_delay_in_msec = 500; 600 work_delay_in_msec = 500;
601 ftdi->enumerated = 0; 601 ftdi->enumerated = 0;
602 ftdi->initialized = 0; 602 ftdi->initialized = 0;
603 } 603 }
604 } 604 }
605 if (ftdi->disconnected > 0) { 605 if (ftdi->disconnected > 0) {
606 ftdi_elan_put_kref(ftdi); 606 ftdi_elan_put_kref(ftdi);
607 return; 607 return;
608 } else { 608 } else {
609 ftdi_status_requeue_work(ftdi, 609 ftdi_status_requeue_work(ftdi,
610 msecs_to_jiffies(work_delay_in_msec)); 610 msecs_to_jiffies(work_delay_in_msec));
611 return; 611 return;
612 } 612 }
613} 613}
614 614
615 615
616/* 616/*
617* file_operations for the jtag interface 617 * file_operations for the jtag interface
618* 618 *
619* the usage count for the device is incremented on open() 619 * the usage count for the device is incremented on open()
620* and decremented on release() 620 * and decremented on release()
621*/ 621 */
622static int ftdi_elan_open(struct inode *inode, struct file *file) 622static int ftdi_elan_open(struct inode *inode, struct file *file)
623{ 623{
624 int subminor; 624 int subminor;
625 struct usb_interface *interface; 625 struct usb_interface *interface;
626 626
627 subminor = iminor(inode); 627 subminor = iminor(inode);
628 interface = usb_find_interface(&ftdi_elan_driver, subminor); 628 interface = usb_find_interface(&ftdi_elan_driver, subminor);
629 629
630 if (!interface) { 630 if (!interface) {
631 printk(KERN_ERR "can't find device for minor %d\n", subminor); 631 printk(KERN_ERR "can't find device for minor %d\n", subminor);
632 return -ENODEV; 632 return -ENODEV;
633 } else { 633 } else {
634 struct usb_ftdi *ftdi = usb_get_intfdata(interface); 634 struct usb_ftdi *ftdi = usb_get_intfdata(interface);
635 if (!ftdi) { 635 if (!ftdi) {
636 return -ENODEV; 636 return -ENODEV;
637 } else { 637 } else {
638 if (down_interruptible(&ftdi->sw_lock)) { 638 if (down_interruptible(&ftdi->sw_lock)) {
639 return -EINTR; 639 return -EINTR;
640 } else { 640 } else {
641 ftdi_elan_get_kref(ftdi); 641 ftdi_elan_get_kref(ftdi);
642 file->private_data = ftdi; 642 file->private_data = ftdi;
643 return 0; 643 return 0;
644 } 644 }
645 } 645 }
646 } 646 }
647} 647}
648 648
649static int ftdi_elan_release(struct inode *inode, struct file *file) 649static int ftdi_elan_release(struct inode *inode, struct file *file)
650{ 650{
651 struct usb_ftdi *ftdi = file->private_data; 651 struct usb_ftdi *ftdi = file->private_data;
652 if (ftdi == NULL) 652 if (ftdi == NULL)
653 return -ENODEV; 653 return -ENODEV;
654 up(&ftdi->sw_lock); /* decrement the count on our device */ 654 up(&ftdi->sw_lock); /* decrement the count on our device */
655 ftdi_elan_put_kref(ftdi); 655 ftdi_elan_put_kref(ftdi);
656 return 0; 656 return 0;
657} 657}
658 658
659 659
660/* 660/*
661* 661 *
662* blocking bulk reads are used to get data from the device 662 * blocking bulk reads are used to get data from the device
663* 663 *
664*/ 664 */
665static ssize_t ftdi_elan_read(struct file *file, char __user *buffer, 665static ssize_t ftdi_elan_read(struct file *file, char __user *buffer,
666 size_t count, loff_t *ppos) 666 size_t count, loff_t *ppos)
667{ 667{
668 char data[30 *3 + 4]; 668 char data[30 *3 + 4];
669 char *d = data; 669 char *d = data;
670 int m = (sizeof(data) - 1) / 3; 670 int m = (sizeof(data) - 1) / 3;
671 int bytes_read = 0; 671 int bytes_read = 0;
672 int retry_on_empty = 10; 672 int retry_on_empty = 10;
673 int retry_on_timeout = 5; 673 int retry_on_timeout = 5;
674 struct usb_ftdi *ftdi = file->private_data; 674 struct usb_ftdi *ftdi = file->private_data;
675 if (ftdi->disconnected > 0) { 675 if (ftdi->disconnected > 0) {
676 return -ENODEV; 676 return -ENODEV;
677 } 677 }
678 data[0] = 0; 678 data[0] = 0;
679 have:if (ftdi->bulk_in_left > 0) { 679have:if (ftdi->bulk_in_left > 0) {
680 if (count-- > 0) { 680 if (count-- > 0) {
681 char *p = ++ftdi->bulk_in_last + ftdi->bulk_in_buffer; 681 char *p = ++ftdi->bulk_in_last + ftdi->bulk_in_buffer;
682 ftdi->bulk_in_left -= 1; 682 ftdi->bulk_in_left -= 1;
683 if (bytes_read < m) { 683 if (bytes_read < m) {
684 d += sprintf(d, " %02X", 0x000000FF & *p); 684 d += sprintf(d, " %02X", 0x000000FF & *p);
685 } else if (bytes_read > m) { 685 } else if (bytes_read > m) {
686 } else 686 } else
687 d += sprintf(d, " .."); 687 d += sprintf(d, " ..");
688 if (copy_to_user(buffer++, p, 1)) { 688 if (copy_to_user(buffer++, p, 1)) {
689 return -EFAULT; 689 return -EFAULT;
690 } else { 690 } else {
691 bytes_read += 1; 691 bytes_read += 1;
692 goto have; 692 goto have;
693 } 693 }
694 } else 694 } else
695 return bytes_read; 695 return bytes_read;
696 } 696 }
697 more:if (count > 0) { 697more:if (count > 0) {
698 int packet_bytes = 0; 698 int packet_bytes = 0;
699 int retval = usb_bulk_msg(ftdi->udev, 699 int retval = usb_bulk_msg(ftdi->udev,
700 usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), 700 usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
701 ftdi->bulk_in_buffer, ftdi->bulk_in_size, 701 ftdi->bulk_in_buffer, ftdi->bulk_in_size,
702 &packet_bytes, 50); 702 &packet_bytes, 50);
703 if (packet_bytes > 2) { 703 if (packet_bytes > 2) {
704 ftdi->bulk_in_left = packet_bytes - 2; 704 ftdi->bulk_in_left = packet_bytes - 2;
705 ftdi->bulk_in_last = 1; 705 ftdi->bulk_in_last = 1;
706 goto have; 706 goto have;
707 } else if (retval == -ETIMEDOUT) { 707 } else if (retval == -ETIMEDOUT) {
708 if (retry_on_timeout-- > 0) { 708 if (retry_on_timeout-- > 0) {
709 goto more; 709 goto more;
710 } else if (bytes_read > 0) { 710 } else if (bytes_read > 0) {
711 return bytes_read; 711 return bytes_read;
712 } else 712 } else
713 return retval; 713 return retval;
714 } else if (retval == 0) { 714 } else if (retval == 0) {
715 if (retry_on_empty-- > 0) { 715 if (retry_on_empty-- > 0) {
716 goto more; 716 goto more;
717 } else 717 } else
718 return bytes_read; 718 return bytes_read;
719 } else 719 } else
720 return retval; 720 return retval;
721 } else 721 } else
722 return bytes_read; 722 return bytes_read;
723} 723}
724 724
725static void ftdi_elan_write_bulk_callback(struct urb *urb) 725static void ftdi_elan_write_bulk_callback(struct urb *urb)
@@ -728,467 +728,467 @@ static void ftdi_elan_write_bulk_callback(struct urb *urb)
728 int status = urb->status; 728 int status = urb->status;
729 729
730 if (status && !(status == -ENOENT || status == -ECONNRESET || 730 if (status && !(status == -ENOENT || status == -ECONNRESET ||
731 status == -ESHUTDOWN)) { 731 status == -ESHUTDOWN)) {
732 dev_err(&ftdi->udev->dev, 732 dev_err(&ftdi->udev->dev,
733 "urb=%p write bulk status received: %d\n", urb, status); 733 "urb=%p write bulk status received: %d\n", urb, status);
734 } 734 }
735 usb_free_coherent(urb->dev, urb->transfer_buffer_length, 735 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
736 urb->transfer_buffer, urb->transfer_dma); 736 urb->transfer_buffer, urb->transfer_dma);
737} 737}
738 738
739static int fill_buffer_with_all_queued_commands(struct usb_ftdi *ftdi, 739static int fill_buffer_with_all_queued_commands(struct usb_ftdi *ftdi,
740 char *buf, int command_size, int total_size) 740 char *buf, int command_size, int total_size)
741{ 741{
742 int ed_commands = 0; 742 int ed_commands = 0;
743 int b = 0; 743 int b = 0;
744 int I = command_size; 744 int I = command_size;
745 int i = ftdi->command_head; 745 int i = ftdi->command_head;
746 while (I-- > 0) { 746 while (I-- > 0) {
747 struct u132_command *command = &ftdi->command[COMMAND_MASK & 747 struct u132_command *command = &ftdi->command[COMMAND_MASK &
748 i++]; 748 i++];
749 int F = command->follows; 749 int F = command->follows;
750 u8 *f = command->buffer; 750 u8 *f = command->buffer;
751 if (command->header & 0x80) { 751 if (command->header & 0x80) {
752 ed_commands |= 1 << (0x3 & (command->header >> 5)); 752 ed_commands |= 1 << (0x3 & (command->header >> 5));
753 } 753 }
754 buf[b++] = command->header; 754 buf[b++] = command->header;
755 buf[b++] = (command->length >> 0) & 0x00FF; 755 buf[b++] = (command->length >> 0) & 0x00FF;
756 buf[b++] = (command->length >> 8) & 0x00FF; 756 buf[b++] = (command->length >> 8) & 0x00FF;
757 buf[b++] = command->address; 757 buf[b++] = command->address;
758 buf[b++] = command->width; 758 buf[b++] = command->width;
759 while (F-- > 0) { 759 while (F-- > 0) {
760 buf[b++] = *f++; 760 buf[b++] = *f++;
761 } 761 }
762 } 762 }
763 return ed_commands; 763 return ed_commands;
764} 764}
765 765
766static int ftdi_elan_total_command_size(struct usb_ftdi *ftdi, int command_size) 766static int ftdi_elan_total_command_size(struct usb_ftdi *ftdi, int command_size)
767{ 767{
768 int total_size = 0; 768 int total_size = 0;
769 int I = command_size; 769 int I = command_size;
770 int i = ftdi->command_head; 770 int i = ftdi->command_head;
771 while (I-- > 0) { 771 while (I-- > 0) {
772 struct u132_command *command = &ftdi->command[COMMAND_MASK & 772 struct u132_command *command = &ftdi->command[COMMAND_MASK &
773 i++]; 773 i++];
774 total_size += 5 + command->follows; 774 total_size += 5 + command->follows;
775 } return total_size; 775 } return total_size;
776} 776}
777 777
778static int ftdi_elan_command_engine(struct usb_ftdi *ftdi) 778static int ftdi_elan_command_engine(struct usb_ftdi *ftdi)
779{ 779{
780 int retval; 780 int retval;
781 char *buf; 781 char *buf;
782 int ed_commands; 782 int ed_commands;
783 int total_size; 783 int total_size;
784 struct urb *urb; 784 struct urb *urb;
785 int command_size = ftdi->command_next - ftdi->command_head; 785 int command_size = ftdi->command_next - ftdi->command_head;
786 if (command_size == 0) 786 if (command_size == 0)
787 return 0; 787 return 0;
788 total_size = ftdi_elan_total_command_size(ftdi, command_size); 788 total_size = ftdi_elan_total_command_size(ftdi, command_size);
789 urb = usb_alloc_urb(0, GFP_KERNEL); 789 urb = usb_alloc_urb(0, GFP_KERNEL);
790 if (!urb) { 790 if (!urb) {
791 dev_err(&ftdi->udev->dev, "could not get a urb to write %d comm" 791 dev_err(&ftdi->udev->dev, "could not get a urb to write %d comm"
792 "ands totaling %d bytes to the Uxxx\n", command_size, 792 "ands totaling %d bytes to the Uxxx\n", command_size,
793 total_size); 793 total_size);
794 return -ENOMEM; 794 return -ENOMEM;
795 } 795 }
796 buf = usb_alloc_coherent(ftdi->udev, total_size, GFP_KERNEL, 796 buf = usb_alloc_coherent(ftdi->udev, total_size, GFP_KERNEL,
797 &urb->transfer_dma); 797 &urb->transfer_dma);
798 if (!buf) { 798 if (!buf) {
799 dev_err(&ftdi->udev->dev, "could not get a buffer to write %d c" 799 dev_err(&ftdi->udev->dev, "could not get a buffer to write %d c"
800 "ommands totaling %d bytes to the Uxxx\n", command_size, 800 "ommands totaling %d bytes to the Uxxx\n", command_size,
801 total_size); 801 total_size);
802 usb_free_urb(urb); 802 usb_free_urb(urb);
803 return -ENOMEM; 803 return -ENOMEM;
804 } 804 }
805 ed_commands = fill_buffer_with_all_queued_commands(ftdi, buf, 805 ed_commands = fill_buffer_with_all_queued_commands(ftdi, buf,
806 command_size, total_size); 806 command_size, total_size);
807 usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev, 807 usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
808 ftdi->bulk_out_endpointAddr), buf, total_size, 808 ftdi->bulk_out_endpointAddr), buf, total_size,
809 ftdi_elan_write_bulk_callback, ftdi); 809 ftdi_elan_write_bulk_callback, ftdi);
810 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 810 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
811 if (ed_commands) { 811 if (ed_commands) {
812 char diag[40 *3 + 4]; 812 char diag[40 *3 + 4];
813 char *d = diag; 813 char *d = diag;
814 int m = total_size; 814 int m = total_size;
815 u8 *c = buf; 815 u8 *c = buf;
816 int s = (sizeof(diag) - 1) / 3; 816 int s = (sizeof(diag) - 1) / 3;
817 diag[0] = 0; 817 diag[0] = 0;
818 while (s-- > 0 && m-- > 0) { 818 while (s-- > 0 && m-- > 0) {
819 if (s > 0 || m == 0) { 819 if (s > 0 || m == 0) {
820 d += sprintf(d, " %02X", *c++); 820 d += sprintf(d, " %02X", *c++);
821 } else 821 } else
822 d += sprintf(d, " .."); 822 d += sprintf(d, " ..");
823 } 823 }
824 } 824 }
825 retval = usb_submit_urb(urb, GFP_KERNEL); 825 retval = usb_submit_urb(urb, GFP_KERNEL);
826 if (retval) { 826 if (retval) {
827 dev_err(&ftdi->udev->dev, "failed %d to submit urb %p to write " 827 dev_err(&ftdi->udev->dev, "failed %d to submit urb %p to write "
828 "%d commands totaling %d bytes to the Uxxx\n", retval, 828 "%d commands totaling %d bytes to the Uxxx\n", retval,
829 urb, command_size, total_size); 829 urb, command_size, total_size);
830 usb_free_coherent(ftdi->udev, total_size, buf, urb->transfer_dma); 830 usb_free_coherent(ftdi->udev, total_size, buf, urb->transfer_dma);
831 usb_free_urb(urb); 831 usb_free_urb(urb);
832 return retval; 832 return retval;
833 } 833 }
834 usb_free_urb(urb); /* release our reference to this urb, 834 usb_free_urb(urb); /* release our reference to this urb,
835 the USB core will eventually free it entirely */ 835 the USB core will eventually free it entirely */
836 ftdi->command_head += command_size; 836 ftdi->command_head += command_size;
837 ftdi_elan_kick_respond_queue(ftdi); 837 ftdi_elan_kick_respond_queue(ftdi);
838 return 0; 838 return 0;
839} 839}
840 840
841static void ftdi_elan_do_callback(struct usb_ftdi *ftdi, 841static void ftdi_elan_do_callback(struct usb_ftdi *ftdi,
842 struct u132_target *target, u8 *buffer, int length) 842 struct u132_target *target, u8 *buffer, int length)
843{ 843{
844 struct urb *urb = target->urb; 844 struct urb *urb = target->urb;
845 int halted = target->halted; 845 int halted = target->halted;
846 int skipped = target->skipped; 846 int skipped = target->skipped;
847 int actual = target->actual; 847 int actual = target->actual;
848 int non_null = target->non_null; 848 int non_null = target->non_null;
849 int toggle_bits = target->toggle_bits; 849 int toggle_bits = target->toggle_bits;
850 int error_count = target->error_count; 850 int error_count = target->error_count;
851 int condition_code = target->condition_code; 851 int condition_code = target->condition_code;
852 int repeat_number = target->repeat_number; 852 int repeat_number = target->repeat_number;
853 void (*callback) (void *, struct urb *, u8 *, int, int, int, int, int, 853 void (*callback) (void *, struct urb *, u8 *, int, int, int, int, int,
854 int, int, int, int) = target->callback; 854 int, int, int, int) = target->callback;
855 target->active -= 1; 855 target->active -= 1;
856 target->callback = NULL; 856 target->callback = NULL;
857 (*callback) (target->endp, urb, buffer, length, toggle_bits, 857 (*callback) (target->endp, urb, buffer, length, toggle_bits,
858 error_count, condition_code, repeat_number, halted, skipped, 858 error_count, condition_code, repeat_number, halted, skipped,
859 actual, non_null); 859 actual, non_null);
860} 860}
861 861
862static char *have_ed_set_response(struct usb_ftdi *ftdi, 862static char *have_ed_set_response(struct usb_ftdi *ftdi,
863 struct u132_target *target, u16 ed_length, int ed_number, int ed_type, 863 struct u132_target *target, u16 ed_length, int ed_number, int ed_type,
864 char *b) 864 char *b)
865{ 865{
866 int payload = (ed_length >> 0) & 0x07FF; 866 int payload = (ed_length >> 0) & 0x07FF;
867 mutex_lock(&ftdi->u132_lock); 867 mutex_lock(&ftdi->u132_lock);
868 target->actual = 0; 868 target->actual = 0;
869 target->non_null = (ed_length >> 15) & 0x0001; 869 target->non_null = (ed_length >> 15) & 0x0001;
870 target->repeat_number = (ed_length >> 11) & 0x000F; 870 target->repeat_number = (ed_length >> 11) & 0x000F;
871 if (ed_type == 0x02) { 871 if (ed_type == 0x02) {
872 if (payload == 0 || target->abandoning > 0) { 872 if (payload == 0 || target->abandoning > 0) {
873 target->abandoning = 0; 873 target->abandoning = 0;
874 mutex_unlock(&ftdi->u132_lock); 874 mutex_unlock(&ftdi->u132_lock);
875 ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, 875 ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
876 payload); 876 payload);
877 ftdi->received = 0; 877 ftdi->received = 0;
878 ftdi->expected = 4; 878 ftdi->expected = 4;
879 ftdi->ed_found = 0; 879 ftdi->ed_found = 0;
880 return ftdi->response; 880 return ftdi->response;
881 } else { 881 } else {
882 ftdi->expected = 4 + payload; 882 ftdi->expected = 4 + payload;
883 ftdi->ed_found = 1; 883 ftdi->ed_found = 1;
884 mutex_unlock(&ftdi->u132_lock); 884 mutex_unlock(&ftdi->u132_lock);
885 return b; 885 return b;
886 } 886 }
887 } else if (ed_type == 0x03) { 887 } else if (ed_type == 0x03) {
888 if (payload == 0 || target->abandoning > 0) { 888 if (payload == 0 || target->abandoning > 0) {
889 target->abandoning = 0; 889 target->abandoning = 0;
890 mutex_unlock(&ftdi->u132_lock); 890 mutex_unlock(&ftdi->u132_lock);
891 ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, 891 ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
892 payload); 892 payload);
893 ftdi->received = 0; 893 ftdi->received = 0;
894 ftdi->expected = 4; 894 ftdi->expected = 4;
895 ftdi->ed_found = 0; 895 ftdi->ed_found = 0;
896 return ftdi->response; 896 return ftdi->response;
897 } else { 897 } else {
898 ftdi->expected = 4 + payload; 898 ftdi->expected = 4 + payload;
899 ftdi->ed_found = 1; 899 ftdi->ed_found = 1;
900 mutex_unlock(&ftdi->u132_lock); 900 mutex_unlock(&ftdi->u132_lock);
901 return b; 901 return b;
902 } 902 }
903 } else if (ed_type == 0x01) { 903 } else if (ed_type == 0x01) {
904 target->abandoning = 0; 904 target->abandoning = 0;
905 mutex_unlock(&ftdi->u132_lock); 905 mutex_unlock(&ftdi->u132_lock);
906 ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, 906 ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
907 payload); 907 payload);
908 ftdi->received = 0; 908 ftdi->received = 0;
909 ftdi->expected = 4; 909 ftdi->expected = 4;
910 ftdi->ed_found = 0; 910 ftdi->ed_found = 0;
911 return ftdi->response; 911 return ftdi->response;
912 } else { 912 } else {
913 target->abandoning = 0; 913 target->abandoning = 0;
914 mutex_unlock(&ftdi->u132_lock); 914 mutex_unlock(&ftdi->u132_lock);
915 ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, 915 ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
916 payload); 916 payload);
917 ftdi->received = 0; 917 ftdi->received = 0;
918 ftdi->expected = 4; 918 ftdi->expected = 4;
919 ftdi->ed_found = 0; 919 ftdi->ed_found = 0;
920 return ftdi->response; 920 return ftdi->response;
921 } 921 }
922} 922}
923 923
924static char *have_ed_get_response(struct usb_ftdi *ftdi, 924static char *have_ed_get_response(struct usb_ftdi *ftdi,
925 struct u132_target *target, u16 ed_length, int ed_number, int ed_type, 925 struct u132_target *target, u16 ed_length, int ed_number, int ed_type,
926 char *b) 926 char *b)
927{ 927{
928 mutex_lock(&ftdi->u132_lock); 928 mutex_lock(&ftdi->u132_lock);
929 target->condition_code = TD_DEVNOTRESP; 929 target->condition_code = TD_DEVNOTRESP;
930 target->actual = (ed_length >> 0) & 0x01FF; 930 target->actual = (ed_length >> 0) & 0x01FF;
931 target->non_null = (ed_length >> 15) & 0x0001; 931 target->non_null = (ed_length >> 15) & 0x0001;
932 target->repeat_number = (ed_length >> 11) & 0x000F; 932 target->repeat_number = (ed_length >> 11) & 0x000F;
933 mutex_unlock(&ftdi->u132_lock); 933 mutex_unlock(&ftdi->u132_lock);
934 if (target->active) 934 if (target->active)
935 ftdi_elan_do_callback(ftdi, target, NULL, 0); 935 ftdi_elan_do_callback(ftdi, target, NULL, 0);
936 target->abandoning = 0; 936 target->abandoning = 0;
937 ftdi->received = 0; 937 ftdi->received = 0;
938 ftdi->expected = 4; 938 ftdi->expected = 4;
939 ftdi->ed_found = 0; 939 ftdi->ed_found = 0;
940 return ftdi->response; 940 return ftdi->response;
941} 941}
942 942
943 943
944/* 944/*
945* The engine tries to empty the FTDI fifo 945 * The engine tries to empty the FTDI fifo
946* 946 *
947* all responses found in the fifo data are dispatched thus 947 * all responses found in the fifo data are dispatched thus
948* the response buffer can only ever hold a maximum sized 948 * the response buffer can only ever hold a maximum sized
949* response from the Uxxx. 949 * response from the Uxxx.
950* 950 *
951*/ 951 */
952static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi) 952static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi)
953{ 953{
954 u8 *b = ftdi->response + ftdi->received; 954 u8 *b = ftdi->response + ftdi->received;
955 int bytes_read = 0; 955 int bytes_read = 0;
956 int retry_on_empty = 1; 956 int retry_on_empty = 1;
957 int retry_on_timeout = 3; 957 int retry_on_timeout = 3;
958 int empty_packets = 0; 958 int empty_packets = 0;
959 read:{ 959read:{
960 int packet_bytes = 0; 960 int packet_bytes = 0;
961 int retval = usb_bulk_msg(ftdi->udev, 961 int retval = usb_bulk_msg(ftdi->udev,
962 usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), 962 usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
963 ftdi->bulk_in_buffer, ftdi->bulk_in_size, 963 ftdi->bulk_in_buffer, ftdi->bulk_in_size,
964 &packet_bytes, 500); 964 &packet_bytes, 500);
965 char diag[30 *3 + 4]; 965 char diag[30 *3 + 4];
966 char *d = diag; 966 char *d = diag;
967 int m = packet_bytes; 967 int m = packet_bytes;
968 u8 *c = ftdi->bulk_in_buffer; 968 u8 *c = ftdi->bulk_in_buffer;
969 int s = (sizeof(diag) - 1) / 3; 969 int s = (sizeof(diag) - 1) / 3;
970 diag[0] = 0; 970 diag[0] = 0;
971 while (s-- > 0 && m-- > 0) { 971 while (s-- > 0 && m-- > 0) {
972 if (s > 0 || m == 0) { 972 if (s > 0 || m == 0) {
973 d += sprintf(d, " %02X", *c++); 973 d += sprintf(d, " %02X", *c++);
974 } else 974 } else
975 d += sprintf(d, " .."); 975 d += sprintf(d, " ..");
976 } 976 }
977 if (packet_bytes > 2) { 977 if (packet_bytes > 2) {
978 ftdi->bulk_in_left = packet_bytes - 2; 978 ftdi->bulk_in_left = packet_bytes - 2;
979 ftdi->bulk_in_last = 1; 979 ftdi->bulk_in_last = 1;
980 goto have; 980 goto have;
981 } else if (retval == -ETIMEDOUT) { 981 } else if (retval == -ETIMEDOUT) {
982 if (retry_on_timeout-- > 0) { 982 if (retry_on_timeout-- > 0) {
983 dev_err(&ftdi->udev->dev, "TIMED OUT with packe" 983 dev_err(&ftdi->udev->dev, "TIMED OUT with packe"
984 "t_bytes = %d with total %d bytes%s\n", 984 "t_bytes = %d with total %d bytes%s\n",
985 packet_bytes, bytes_read, diag); 985 packet_bytes, bytes_read, diag);
986 goto more; 986 goto more;
987 } else if (bytes_read > 0) { 987 } else if (bytes_read > 0) {
988 dev_err(&ftdi->udev->dev, "ONLY %d bytes%s\n", 988 dev_err(&ftdi->udev->dev, "ONLY %d bytes%s\n",
989 bytes_read, diag); 989 bytes_read, diag);
990 return -ENOMEM; 990 return -ENOMEM;
991 } else { 991 } else {
992 dev_err(&ftdi->udev->dev, "TIMED OUT with packe" 992 dev_err(&ftdi->udev->dev, "TIMED OUT with packe"
993 "t_bytes = %d with total %d bytes%s\n", 993 "t_bytes = %d with total %d bytes%s\n",
994 packet_bytes, bytes_read, diag); 994 packet_bytes, bytes_read, diag);
995 return -ENOMEM; 995 return -ENOMEM;
996 } 996 }
997 } else if (retval == -EILSEQ) { 997 } else if (retval == -EILSEQ) {
998 dev_err(&ftdi->udev->dev, "error = %d with packet_bytes" 998 dev_err(&ftdi->udev->dev, "error = %d with packet_bytes"
999 " = %d with total %d bytes%s\n", retval, 999 " = %d with total %d bytes%s\n", retval,
1000 packet_bytes, bytes_read, diag); 1000 packet_bytes, bytes_read, diag);
1001 return retval; 1001 return retval;
1002 } else if (retval) { 1002 } else if (retval) {
1003 dev_err(&ftdi->udev->dev, "error = %d with packet_bytes" 1003 dev_err(&ftdi->udev->dev, "error = %d with packet_bytes"
1004 " = %d with total %d bytes%s\n", retval, 1004 " = %d with total %d bytes%s\n", retval,
1005 packet_bytes, bytes_read, diag); 1005 packet_bytes, bytes_read, diag);
1006 return retval; 1006 return retval;
1007 } else if (packet_bytes == 2) { 1007 } else if (packet_bytes == 2) {
1008 unsigned char s0 = ftdi->bulk_in_buffer[0]; 1008 unsigned char s0 = ftdi->bulk_in_buffer[0];
1009 unsigned char s1 = ftdi->bulk_in_buffer[1]; 1009 unsigned char s1 = ftdi->bulk_in_buffer[1];
1010 empty_packets += 1; 1010 empty_packets += 1;
1011 if (s0 == 0x31 && s1 == 0x60) { 1011 if (s0 == 0x31 && s1 == 0x60) {
1012 if (retry_on_empty-- > 0) { 1012 if (retry_on_empty-- > 0) {
1013 goto more; 1013 goto more;
1014 } else 1014 } else
1015 return 0; 1015 return 0;
1016 } else if (s0 == 0x31 && s1 == 0x00) { 1016 } else if (s0 == 0x31 && s1 == 0x00) {
1017 if (retry_on_empty-- > 0) { 1017 if (retry_on_empty-- > 0) {
1018 goto more; 1018 goto more;
1019 } else 1019 } else
1020 return 0; 1020 return 0;
1021 } else { 1021 } else {
1022 if (retry_on_empty-- > 0) { 1022 if (retry_on_empty-- > 0) {
1023 goto more; 1023 goto more;
1024 } else 1024 } else
1025 return 0; 1025 return 0;
1026 } 1026 }
1027 } else if (packet_bytes == 1) { 1027 } else if (packet_bytes == 1) {
1028 if (retry_on_empty-- > 0) { 1028 if (retry_on_empty-- > 0) {
1029 goto more; 1029 goto more;
1030 } else 1030 } else
1031 return 0; 1031 return 0;
1032 } else { 1032 } else {
1033 if (retry_on_empty-- > 0) { 1033 if (retry_on_empty-- > 0) {
1034 goto more; 1034 goto more;
1035 } else 1035 } else
1036 return 0; 1036 return 0;
1037 } 1037 }
1038 } 1038 }
1039 more:{ 1039more:{
1040 goto read; 1040 goto read;
1041 } 1041 }
1042 have:if (ftdi->bulk_in_left > 0) { 1042have:if (ftdi->bulk_in_left > 0) {
1043 u8 c = ftdi->bulk_in_buffer[++ftdi->bulk_in_last]; 1043 u8 c = ftdi->bulk_in_buffer[++ftdi->bulk_in_last];
1044 bytes_read += 1; 1044 bytes_read += 1;
1045 ftdi->bulk_in_left -= 1; 1045 ftdi->bulk_in_left -= 1;
1046 if (ftdi->received == 0 && c == 0xFF) { 1046 if (ftdi->received == 0 && c == 0xFF) {
1047 goto have; 1047 goto have;
1048 } else 1048 } else
1049 *b++ = c; 1049 *b++ = c;
1050 if (++ftdi->received < ftdi->expected) { 1050 if (++ftdi->received < ftdi->expected) {
1051 goto have; 1051 goto have;
1052 } else if (ftdi->ed_found) { 1052 } else if (ftdi->ed_found) {
1053 int ed_number = (ftdi->response[0] >> 5) & 0x03; 1053 int ed_number = (ftdi->response[0] >> 5) & 0x03;
1054 u16 ed_length = (ftdi->response[2] << 8) | 1054 u16 ed_length = (ftdi->response[2] << 8) |
1055 ftdi->response[1]; 1055 ftdi->response[1];
1056 struct u132_target *target = &ftdi->target[ed_number]; 1056 struct u132_target *target = &ftdi->target[ed_number];
1057 int payload = (ed_length >> 0) & 0x07FF; 1057 int payload = (ed_length >> 0) & 0x07FF;
1058 char diag[30 *3 + 4]; 1058 char diag[30 *3 + 4];
1059 char *d = diag; 1059 char *d = diag;
1060 int m = payload; 1060 int m = payload;
1061 u8 *c = 4 + ftdi->response; 1061 u8 *c = 4 + ftdi->response;
1062 int s = (sizeof(diag) - 1) / 3; 1062 int s = (sizeof(diag) - 1) / 3;
1063 diag[0] = 0; 1063 diag[0] = 0;
1064 while (s-- > 0 && m-- > 0) { 1064 while (s-- > 0 && m-- > 0) {
1065 if (s > 0 || m == 0) { 1065 if (s > 0 || m == 0) {
1066 d += sprintf(d, " %02X", *c++); 1066 d += sprintf(d, " %02X", *c++);
1067 } else 1067 } else
1068 d += sprintf(d, " .."); 1068 d += sprintf(d, " ..");
1069 } 1069 }
1070 ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, 1070 ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
1071 payload); 1071 payload);
1072 ftdi->received = 0; 1072 ftdi->received = 0;
1073 ftdi->expected = 4; 1073 ftdi->expected = 4;
1074 ftdi->ed_found = 0; 1074 ftdi->ed_found = 0;
1075 b = ftdi->response; 1075 b = ftdi->response;
1076 goto have; 1076 goto have;
1077 } else if (ftdi->expected == 8) { 1077 } else if (ftdi->expected == 8) {
1078 u8 buscmd; 1078 u8 buscmd;
1079 int respond_head = ftdi->respond_head++; 1079 int respond_head = ftdi->respond_head++;
1080 struct u132_respond *respond = &ftdi->respond[ 1080 struct u132_respond *respond = &ftdi->respond[
1081 RESPOND_MASK & respond_head]; 1081 RESPOND_MASK & respond_head];
1082 u32 data = ftdi->response[7]; 1082 u32 data = ftdi->response[7];
1083 data <<= 8; 1083 data <<= 8;
1084 data |= ftdi->response[6]; 1084 data |= ftdi->response[6];
1085 data <<= 8; 1085 data <<= 8;
1086 data |= ftdi->response[5]; 1086 data |= ftdi->response[5];
1087 data <<= 8; 1087 data <<= 8;
1088 data |= ftdi->response[4]; 1088 data |= ftdi->response[4];
1089 *respond->value = data; 1089 *respond->value = data;
1090 *respond->result = 0; 1090 *respond->result = 0;
1091 complete(&respond->wait_completion); 1091 complete(&respond->wait_completion);
1092 ftdi->received = 0; 1092 ftdi->received = 0;
1093 ftdi->expected = 4; 1093 ftdi->expected = 4;
1094 ftdi->ed_found = 0; 1094 ftdi->ed_found = 0;
1095 b = ftdi->response; 1095 b = ftdi->response;
1096 buscmd = (ftdi->response[0] >> 0) & 0x0F; 1096 buscmd = (ftdi->response[0] >> 0) & 0x0F;
1097 if (buscmd == 0x00) { 1097 if (buscmd == 0x00) {
1098 } else if (buscmd == 0x02) { 1098 } else if (buscmd == 0x02) {
1099 } else if (buscmd == 0x06) { 1099 } else if (buscmd == 0x06) {
1100 } else if (buscmd == 0x0A) { 1100 } else if (buscmd == 0x0A) {
1101 } else 1101 } else
1102 dev_err(&ftdi->udev->dev, "Uxxx unknown(%0X) va" 1102 dev_err(&ftdi->udev->dev, "Uxxx unknown(%0X) va"
1103 "lue = %08X\n", buscmd, data); 1103 "lue = %08X\n", buscmd, data);
1104 goto have; 1104 goto have;
1105 } else { 1105 } else {
1106 if ((ftdi->response[0] & 0x80) == 0x00) { 1106 if ((ftdi->response[0] & 0x80) == 0x00) {
1107 ftdi->expected = 8; 1107 ftdi->expected = 8;
1108 goto have; 1108 goto have;
1109 } else { 1109 } else {
1110 int ed_number = (ftdi->response[0] >> 5) & 0x03; 1110 int ed_number = (ftdi->response[0] >> 5) & 0x03;
1111 int ed_type = (ftdi->response[0] >> 0) & 0x03; 1111 int ed_type = (ftdi->response[0] >> 0) & 0x03;
1112 u16 ed_length = (ftdi->response[2] << 8) | 1112 u16 ed_length = (ftdi->response[2] << 8) |
1113 ftdi->response[1]; 1113 ftdi->response[1];
1114 struct u132_target *target = &ftdi->target[ 1114 struct u132_target *target = &ftdi->target[
1115 ed_number]; 1115 ed_number];
1116 target->halted = (ftdi->response[0] >> 3) & 1116 target->halted = (ftdi->response[0] >> 3) &
1117 0x01; 1117 0x01;
1118 target->skipped = (ftdi->response[0] >> 2) & 1118 target->skipped = (ftdi->response[0] >> 2) &
1119 0x01; 1119 0x01;
1120 target->toggle_bits = (ftdi->response[3] >> 6) 1120 target->toggle_bits = (ftdi->response[3] >> 6)
1121 & 0x03; 1121 & 0x03;
1122 target->error_count = (ftdi->response[3] >> 4) 1122 target->error_count = (ftdi->response[3] >> 4)
1123 & 0x03; 1123 & 0x03;
1124 target->condition_code = (ftdi->response[ 1124 target->condition_code = (ftdi->response[
1125 3] >> 0) & 0x0F; 1125 3] >> 0) & 0x0F;
1126 if ((ftdi->response[0] & 0x10) == 0x00) { 1126 if ((ftdi->response[0] & 0x10) == 0x00) {
1127 b = have_ed_set_response(ftdi, target, 1127 b = have_ed_set_response(ftdi, target,
1128 ed_length, ed_number, ed_type, 1128 ed_length, ed_number, ed_type,
1129 b); 1129 b);
1130 goto have; 1130 goto have;
1131 } else { 1131 } else {
1132 b = have_ed_get_response(ftdi, target, 1132 b = have_ed_get_response(ftdi, target,
1133 ed_length, ed_number, ed_type, 1133 ed_length, ed_number, ed_type,
1134 b); 1134 b);
1135 goto have; 1135 goto have;
1136 } 1136 }
1137 } 1137 }
1138 } 1138 }
1139 } else 1139 } else
1140 goto more; 1140 goto more;
1141} 1141}
1142 1142
1143 1143
1144/* 1144/*
1145* create a urb, and a buffer for it, and copy the data to the urb 1145 * create a urb, and a buffer for it, and copy the data to the urb
1146* 1146 *
1147*/ 1147 */
1148static ssize_t ftdi_elan_write(struct file *file, 1148static ssize_t ftdi_elan_write(struct file *file,
1149 const char __user *user_buffer, size_t count, 1149 const char __user *user_buffer, size_t count,
1150 loff_t *ppos) 1150 loff_t *ppos)
1151{ 1151{
1152 int retval = 0; 1152 int retval = 0;
1153 struct urb *urb; 1153 struct urb *urb;
1154 char *buf; 1154 char *buf;
1155 struct usb_ftdi *ftdi = file->private_data; 1155 struct usb_ftdi *ftdi = file->private_data;
1156 1156
1157 if (ftdi->disconnected > 0) { 1157 if (ftdi->disconnected > 0) {
1158 return -ENODEV; 1158 return -ENODEV;
1159 } 1159 }
1160 if (count == 0) { 1160 if (count == 0) {
1161 goto exit; 1161 goto exit;
1162 } 1162 }
1163 urb = usb_alloc_urb(0, GFP_KERNEL); 1163 urb = usb_alloc_urb(0, GFP_KERNEL);
1164 if (!urb) { 1164 if (!urb) {
1165 retval = -ENOMEM; 1165 retval = -ENOMEM;
1166 goto error_1; 1166 goto error_1;
1167 } 1167 }
1168 buf = usb_alloc_coherent(ftdi->udev, count, GFP_KERNEL, 1168 buf = usb_alloc_coherent(ftdi->udev, count, GFP_KERNEL,
1169 &urb->transfer_dma); 1169 &urb->transfer_dma);
1170 if (!buf) { 1170 if (!buf) {
1171 retval = -ENOMEM; 1171 retval = -ENOMEM;
1172 goto error_2; 1172 goto error_2;
1173 } 1173 }
1174 if (copy_from_user(buf, user_buffer, count)) { 1174 if (copy_from_user(buf, user_buffer, count)) {
1175 retval = -EFAULT; 1175 retval = -EFAULT;
1176 goto error_3; 1176 goto error_3;
1177 } 1177 }
1178 usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev, 1178 usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
1179 ftdi->bulk_out_endpointAddr), buf, count, 1179 ftdi->bulk_out_endpointAddr), buf, count,
1180 ftdi_elan_write_bulk_callback, ftdi); 1180 ftdi_elan_write_bulk_callback, ftdi);
1181 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1181 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1182 retval = usb_submit_urb(urb, GFP_KERNEL); 1182 retval = usb_submit_urb(urb, GFP_KERNEL);
1183 if (retval) { 1183 if (retval) {
1184 dev_err(&ftdi->udev->dev, 1184 dev_err(&ftdi->udev->dev,
1185 "failed submitting write urb, error %d\n", retval); 1185 "failed submitting write urb, error %d\n", retval);
1186 goto error_3; 1186 goto error_3;
1187 } 1187 }
1188 usb_free_urb(urb); 1188 usb_free_urb(urb);
1189 1189
1190exit: 1190exit:
1191 return count; 1191 return count;
1192error_3: 1192error_3:
1193 usb_free_coherent(ftdi->udev, count, buf, urb->transfer_dma); 1193 usb_free_coherent(ftdi->udev, count, buf, urb->transfer_dma);
1194error_2: 1194error_2:
@@ -1198,29 +1198,29 @@ error_1:
1198} 1198}
1199 1199
1200static const struct file_operations ftdi_elan_fops = { 1200static const struct file_operations ftdi_elan_fops = {
1201 .owner = THIS_MODULE, 1201 .owner = THIS_MODULE,
1202 .llseek = no_llseek, 1202 .llseek = no_llseek,
1203 .read = ftdi_elan_read, 1203 .read = ftdi_elan_read,
1204 .write = ftdi_elan_write, 1204 .write = ftdi_elan_write,
1205 .open = ftdi_elan_open, 1205 .open = ftdi_elan_open,
1206 .release = ftdi_elan_release, 1206 .release = ftdi_elan_release,
1207}; 1207};
1208 1208
1209/* 1209/*
1210* usb class driver info in order to get a minor number from the usb core, 1210 * usb class driver info in order to get a minor number from the usb core,
1211* and to have the device registered with the driver core 1211 * and to have the device registered with the driver core
1212*/ 1212 */
1213static struct usb_class_driver ftdi_elan_jtag_class = { 1213static struct usb_class_driver ftdi_elan_jtag_class = {
1214 .name = "ftdi-%d-jtag", 1214 .name = "ftdi-%d-jtag",
1215 .fops = &ftdi_elan_fops, 1215 .fops = &ftdi_elan_fops,
1216 .minor_base = USB_FTDI_ELAN_MINOR_BASE, 1216 .minor_base = USB_FTDI_ELAN_MINOR_BASE,
1217}; 1217};
1218 1218
1219/* 1219/*
1220* the following definitions are for the 1220 * the following definitions are for the
1221* ELAN FPGA state machgine processor that 1221 * ELAN FPGA state machgine processor that
1222* lies on the other side of the FTDI chip 1222 * lies on the other side of the FTDI chip
1223*/ 1223 */
1224#define cPCIu132rd 0x0 1224#define cPCIu132rd 0x0
1225#define cPCIu132wr 0x1 1225#define cPCIu132wr 0x1
1226#define cPCIiord 0x2 1226#define cPCIiord 0x2
@@ -1251,1694 +1251,1694 @@ static struct usb_class_driver ftdi_elan_jtag_class = {
1251#define cCCnotaccessed 0xF 1251#define cCCnotaccessed 0xF
1252static int ftdi_elan_write_reg(struct usb_ftdi *ftdi, u32 data) 1252static int ftdi_elan_write_reg(struct usb_ftdi *ftdi, u32 data)
1253{ 1253{
1254 wait:if (ftdi->disconnected > 0) { 1254wait:if (ftdi->disconnected > 0) {
1255 return -ENODEV; 1255 return -ENODEV;
1256 } else { 1256 } else {
1257 int command_size; 1257 int command_size;
1258 mutex_lock(&ftdi->u132_lock); 1258 mutex_lock(&ftdi->u132_lock);
1259 command_size = ftdi->command_next - ftdi->command_head; 1259 command_size = ftdi->command_next - ftdi->command_head;
1260 if (command_size < COMMAND_SIZE) { 1260 if (command_size < COMMAND_SIZE) {
1261 struct u132_command *command = &ftdi->command[ 1261 struct u132_command *command = &ftdi->command[
1262 COMMAND_MASK & ftdi->command_next]; 1262 COMMAND_MASK & ftdi->command_next];
1263 command->header = 0x00 | cPCIu132wr; 1263 command->header = 0x00 | cPCIu132wr;
1264 command->length = 0x04; 1264 command->length = 0x04;
1265 command->address = 0x00; 1265 command->address = 0x00;
1266 command->width = 0x00; 1266 command->width = 0x00;
1267 command->follows = 4; 1267 command->follows = 4;
1268 command->value = data; 1268 command->value = data;
1269 command->buffer = &command->value; 1269 command->buffer = &command->value;
1270 ftdi->command_next += 1; 1270 ftdi->command_next += 1;
1271 ftdi_elan_kick_command_queue(ftdi); 1271 ftdi_elan_kick_command_queue(ftdi);
1272 mutex_unlock(&ftdi->u132_lock); 1272 mutex_unlock(&ftdi->u132_lock);
1273 return 0; 1273 return 0;
1274 } else { 1274 } else {
1275 mutex_unlock(&ftdi->u132_lock); 1275 mutex_unlock(&ftdi->u132_lock);
1276 msleep(100); 1276 msleep(100);
1277 goto wait; 1277 goto wait;
1278 } 1278 }
1279 } 1279 }
1280} 1280}
1281 1281
1282static int ftdi_elan_write_config(struct usb_ftdi *ftdi, int config_offset, 1282static int ftdi_elan_write_config(struct usb_ftdi *ftdi, int config_offset,
1283 u8 width, u32 data) 1283 u8 width, u32 data)
1284{ 1284{
1285 u8 addressofs = config_offset / 4; 1285 u8 addressofs = config_offset / 4;
1286 wait:if (ftdi->disconnected > 0) { 1286wait:if (ftdi->disconnected > 0) {
1287 return -ENODEV; 1287 return -ENODEV;
1288 } else { 1288 } else {
1289 int command_size; 1289 int command_size;
1290 mutex_lock(&ftdi->u132_lock); 1290 mutex_lock(&ftdi->u132_lock);
1291 command_size = ftdi->command_next - ftdi->command_head; 1291 command_size = ftdi->command_next - ftdi->command_head;
1292 if (command_size < COMMAND_SIZE) { 1292 if (command_size < COMMAND_SIZE) {
1293 struct u132_command *command = &ftdi->command[ 1293 struct u132_command *command = &ftdi->command[
1294 COMMAND_MASK & ftdi->command_next]; 1294 COMMAND_MASK & ftdi->command_next];
1295 command->header = 0x00 | (cPCIcfgwr & 0x0F); 1295 command->header = 0x00 | (cPCIcfgwr & 0x0F);
1296 command->length = 0x04; 1296 command->length = 0x04;
1297 command->address = addressofs; 1297 command->address = addressofs;
1298 command->width = 0x00 | (width & 0x0F); 1298 command->width = 0x00 | (width & 0x0F);
1299 command->follows = 4; 1299 command->follows = 4;
1300 command->value = data; 1300 command->value = data;
1301 command->buffer = &command->value; 1301 command->buffer = &command->value;
1302 ftdi->command_next += 1; 1302 ftdi->command_next += 1;
1303 ftdi_elan_kick_command_queue(ftdi); 1303 ftdi_elan_kick_command_queue(ftdi);
1304 mutex_unlock(&ftdi->u132_lock); 1304 mutex_unlock(&ftdi->u132_lock);
1305 return 0; 1305 return 0;
1306 } else { 1306 } else {
1307 mutex_unlock(&ftdi->u132_lock); 1307 mutex_unlock(&ftdi->u132_lock);
1308 msleep(100); 1308 msleep(100);
1309 goto wait; 1309 goto wait;
1310 } 1310 }
1311 } 1311 }
1312} 1312}
1313 1313
1314static int ftdi_elan_write_pcimem(struct usb_ftdi *ftdi, int mem_offset, 1314static int ftdi_elan_write_pcimem(struct usb_ftdi *ftdi, int mem_offset,
1315 u8 width, u32 data) 1315 u8 width, u32 data)
1316{ 1316{
1317 u8 addressofs = mem_offset / 4; 1317 u8 addressofs = mem_offset / 4;
1318 wait:if (ftdi->disconnected > 0) { 1318wait:if (ftdi->disconnected > 0) {
1319 return -ENODEV; 1319 return -ENODEV;
1320 } else { 1320 } else {
1321 int command_size; 1321 int command_size;
1322 mutex_lock(&ftdi->u132_lock); 1322 mutex_lock(&ftdi->u132_lock);
1323 command_size = ftdi->command_next - ftdi->command_head; 1323 command_size = ftdi->command_next - ftdi->command_head;
1324 if (command_size < COMMAND_SIZE) { 1324 if (command_size < COMMAND_SIZE) {
1325 struct u132_command *command = &ftdi->command[ 1325 struct u132_command *command = &ftdi->command[
1326 COMMAND_MASK & ftdi->command_next]; 1326 COMMAND_MASK & ftdi->command_next];
1327 command->header = 0x00 | (cPCImemwr & 0x0F); 1327 command->header = 0x00 | (cPCImemwr & 0x0F);
1328 command->length = 0x04; 1328 command->length = 0x04;
1329 command->address = addressofs; 1329 command->address = addressofs;
1330 command->width = 0x00 | (width & 0x0F); 1330 command->width = 0x00 | (width & 0x0F);
1331 command->follows = 4; 1331 command->follows = 4;
1332 command->value = data; 1332 command->value = data;
1333 command->buffer = &command->value; 1333 command->buffer = &command->value;
1334 ftdi->command_next += 1; 1334 ftdi->command_next += 1;
1335 ftdi_elan_kick_command_queue(ftdi); 1335 ftdi_elan_kick_command_queue(ftdi);
1336 mutex_unlock(&ftdi->u132_lock); 1336 mutex_unlock(&ftdi->u132_lock);
1337 return 0; 1337 return 0;
1338 } else { 1338 } else {
1339 mutex_unlock(&ftdi->u132_lock); 1339 mutex_unlock(&ftdi->u132_lock);
1340 msleep(100); 1340 msleep(100);
1341 goto wait; 1341 goto wait;
1342 } 1342 }
1343 } 1343 }
1344} 1344}
1345 1345
1346int usb_ftdi_elan_write_pcimem(struct platform_device *pdev, int mem_offset, 1346int usb_ftdi_elan_write_pcimem(struct platform_device *pdev, int mem_offset,
1347 u8 width, u32 data) 1347 u8 width, u32 data)
1348{ 1348{
1349 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); 1349 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
1350 return ftdi_elan_write_pcimem(ftdi, mem_offset, width, data); 1350 return ftdi_elan_write_pcimem(ftdi, mem_offset, width, data);
1351} 1351}
1352 1352
1353 1353
1354EXPORT_SYMBOL_GPL(usb_ftdi_elan_write_pcimem); 1354EXPORT_SYMBOL_GPL(usb_ftdi_elan_write_pcimem);
1355static int ftdi_elan_read_reg(struct usb_ftdi *ftdi, u32 *data) 1355static int ftdi_elan_read_reg(struct usb_ftdi *ftdi, u32 *data)
1356{ 1356{
1357 wait:if (ftdi->disconnected > 0) { 1357wait:if (ftdi->disconnected > 0) {
1358 return -ENODEV; 1358 return -ENODEV;
1359 } else { 1359 } else {
1360 int command_size; 1360 int command_size;
1361 int respond_size; 1361 int respond_size;
1362 mutex_lock(&ftdi->u132_lock); 1362 mutex_lock(&ftdi->u132_lock);
1363 command_size = ftdi->command_next - ftdi->command_head; 1363 command_size = ftdi->command_next - ftdi->command_head;
1364 respond_size = ftdi->respond_next - ftdi->respond_head; 1364 respond_size = ftdi->respond_next - ftdi->respond_head;
1365 if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE) 1365 if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE)
1366 { 1366 {
1367 struct u132_command *command = &ftdi->command[ 1367 struct u132_command *command = &ftdi->command[
1368 COMMAND_MASK & ftdi->command_next]; 1368 COMMAND_MASK & ftdi->command_next];
1369 struct u132_respond *respond = &ftdi->respond[ 1369 struct u132_respond *respond = &ftdi->respond[
1370 RESPOND_MASK & ftdi->respond_next]; 1370 RESPOND_MASK & ftdi->respond_next];
1371 int result = -ENODEV; 1371 int result = -ENODEV;
1372 respond->result = &result; 1372 respond->result = &result;
1373 respond->header = command->header = 0x00 | cPCIu132rd; 1373 respond->header = command->header = 0x00 | cPCIu132rd;
1374 command->length = 0x04; 1374 command->length = 0x04;
1375 respond->address = command->address = cU132cmd_status; 1375 respond->address = command->address = cU132cmd_status;
1376 command->width = 0x00; 1376 command->width = 0x00;
1377 command->follows = 0; 1377 command->follows = 0;
1378 command->value = 0; 1378 command->value = 0;
1379 command->buffer = NULL; 1379 command->buffer = NULL;
1380 respond->value = data; 1380 respond->value = data;
1381 init_completion(&respond->wait_completion); 1381 init_completion(&respond->wait_completion);
1382 ftdi->command_next += 1; 1382 ftdi->command_next += 1;
1383 ftdi->respond_next += 1; 1383 ftdi->respond_next += 1;
1384 ftdi_elan_kick_command_queue(ftdi); 1384 ftdi_elan_kick_command_queue(ftdi);
1385 mutex_unlock(&ftdi->u132_lock); 1385 mutex_unlock(&ftdi->u132_lock);
1386 wait_for_completion(&respond->wait_completion); 1386 wait_for_completion(&respond->wait_completion);
1387 return result; 1387 return result;
1388 } else { 1388 } else {
1389 mutex_unlock(&ftdi->u132_lock); 1389 mutex_unlock(&ftdi->u132_lock);
1390 msleep(100); 1390 msleep(100);
1391 goto wait; 1391 goto wait;
1392 } 1392 }
1393 } 1393 }
1394} 1394}
1395 1395
1396static int ftdi_elan_read_config(struct usb_ftdi *ftdi, int config_offset, 1396static int ftdi_elan_read_config(struct usb_ftdi *ftdi, int config_offset,
1397 u8 width, u32 *data) 1397 u8 width, u32 *data)
1398{ 1398{
1399 u8 addressofs = config_offset / 4; 1399 u8 addressofs = config_offset / 4;
1400 wait:if (ftdi->disconnected > 0) { 1400wait:if (ftdi->disconnected > 0) {
1401 return -ENODEV; 1401 return -ENODEV;
1402 } else { 1402 } else {
1403 int command_size; 1403 int command_size;
1404 int respond_size; 1404 int respond_size;
1405 mutex_lock(&ftdi->u132_lock); 1405 mutex_lock(&ftdi->u132_lock);
1406 command_size = ftdi->command_next - ftdi->command_head; 1406 command_size = ftdi->command_next - ftdi->command_head;
1407 respond_size = ftdi->respond_next - ftdi->respond_head; 1407 respond_size = ftdi->respond_next - ftdi->respond_head;
1408 if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE) 1408 if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE)
1409 { 1409 {
1410 struct u132_command *command = &ftdi->command[ 1410 struct u132_command *command = &ftdi->command[
1411 COMMAND_MASK & ftdi->command_next]; 1411 COMMAND_MASK & ftdi->command_next];
1412 struct u132_respond *respond = &ftdi->respond[ 1412 struct u132_respond *respond = &ftdi->respond[
1413 RESPOND_MASK & ftdi->respond_next]; 1413 RESPOND_MASK & ftdi->respond_next];
1414 int result = -ENODEV; 1414 int result = -ENODEV;
1415 respond->result = &result; 1415 respond->result = &result;
1416 respond->header = command->header = 0x00 | (cPCIcfgrd & 1416 respond->header = command->header = 0x00 | (cPCIcfgrd &
1417 0x0F); 1417 0x0F);
1418 command->length = 0x04; 1418 command->length = 0x04;
1419 respond->address = command->address = addressofs; 1419 respond->address = command->address = addressofs;
1420 command->width = 0x00 | (width & 0x0F); 1420 command->width = 0x00 | (width & 0x0F);
1421 command->follows = 0; 1421 command->follows = 0;
1422 command->value = 0; 1422 command->value = 0;
1423 command->buffer = NULL; 1423 command->buffer = NULL;
1424 respond->value = data; 1424 respond->value = data;
1425 init_completion(&respond->wait_completion); 1425 init_completion(&respond->wait_completion);
1426 ftdi->command_next += 1; 1426 ftdi->command_next += 1;
1427 ftdi->respond_next += 1; 1427 ftdi->respond_next += 1;
1428 ftdi_elan_kick_command_queue(ftdi); 1428 ftdi_elan_kick_command_queue(ftdi);
1429 mutex_unlock(&ftdi->u132_lock); 1429 mutex_unlock(&ftdi->u132_lock);
1430 wait_for_completion(&respond->wait_completion); 1430 wait_for_completion(&respond->wait_completion);
1431 return result; 1431 return result;
1432 } else { 1432 } else {
1433 mutex_unlock(&ftdi->u132_lock); 1433 mutex_unlock(&ftdi->u132_lock);
1434 msleep(100); 1434 msleep(100);
1435 goto wait; 1435 goto wait;
1436 } 1436 }
1437 } 1437 }
1438} 1438}
1439 1439
1440static int ftdi_elan_read_pcimem(struct usb_ftdi *ftdi, int mem_offset, 1440static int ftdi_elan_read_pcimem(struct usb_ftdi *ftdi, int mem_offset,
1441 u8 width, u32 *data) 1441 u8 width, u32 *data)
1442{ 1442{
1443 u8 addressofs = mem_offset / 4; 1443 u8 addressofs = mem_offset / 4;
1444 wait:if (ftdi->disconnected > 0) { 1444wait:if (ftdi->disconnected > 0) {
1445 return -ENODEV; 1445 return -ENODEV;
1446 } else { 1446 } else {
1447 int command_size; 1447 int command_size;
1448 int respond_size; 1448 int respond_size;
1449 mutex_lock(&ftdi->u132_lock); 1449 mutex_lock(&ftdi->u132_lock);
1450 command_size = ftdi->command_next - ftdi->command_head; 1450 command_size = ftdi->command_next - ftdi->command_head;
1451 respond_size = ftdi->respond_next - ftdi->respond_head; 1451 respond_size = ftdi->respond_next - ftdi->respond_head;
1452 if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE) 1452 if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE)
1453 { 1453 {
1454 struct u132_command *command = &ftdi->command[ 1454 struct u132_command *command = &ftdi->command[
1455 COMMAND_MASK & ftdi->command_next]; 1455 COMMAND_MASK & ftdi->command_next];
1456 struct u132_respond *respond = &ftdi->respond[ 1456 struct u132_respond *respond = &ftdi->respond[
1457 RESPOND_MASK & ftdi->respond_next]; 1457 RESPOND_MASK & ftdi->respond_next];
1458 int result = -ENODEV; 1458 int result = -ENODEV;
1459 respond->result = &result; 1459 respond->result = &result;
1460 respond->header = command->header = 0x00 | (cPCImemrd & 1460 respond->header = command->header = 0x00 | (cPCImemrd &
1461 0x0F); 1461 0x0F);
1462 command->length = 0x04; 1462 command->length = 0x04;
1463 respond->address = command->address = addressofs; 1463 respond->address = command->address = addressofs;
1464 command->width = 0x00 | (width & 0x0F); 1464 command->width = 0x00 | (width & 0x0F);
1465 command->follows = 0; 1465 command->follows = 0;
1466 command->value = 0; 1466 command->value = 0;
1467 command->buffer = NULL; 1467 command->buffer = NULL;
1468 respond->value = data; 1468 respond->value = data;
1469 init_completion(&respond->wait_completion); 1469 init_completion(&respond->wait_completion);
1470 ftdi->command_next += 1; 1470 ftdi->command_next += 1;
1471 ftdi->respond_next += 1; 1471 ftdi->respond_next += 1;
1472 ftdi_elan_kick_command_queue(ftdi); 1472 ftdi_elan_kick_command_queue(ftdi);
1473 mutex_unlock(&ftdi->u132_lock); 1473 mutex_unlock(&ftdi->u132_lock);
1474 wait_for_completion(&respond->wait_completion); 1474 wait_for_completion(&respond->wait_completion);
1475 return result; 1475 return result;
1476 } else { 1476 } else {
1477 mutex_unlock(&ftdi->u132_lock); 1477 mutex_unlock(&ftdi->u132_lock);
1478 msleep(100); 1478 msleep(100);
1479 goto wait; 1479 goto wait;
1480 } 1480 }
1481 } 1481 }
1482} 1482}
1483 1483
1484int usb_ftdi_elan_read_pcimem(struct platform_device *pdev, int mem_offset, 1484int usb_ftdi_elan_read_pcimem(struct platform_device *pdev, int mem_offset,
1485 u8 width, u32 *data) 1485 u8 width, u32 *data)
1486{ 1486{
1487 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); 1487 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
1488 if (ftdi->initialized == 0) { 1488 if (ftdi->initialized == 0) {
1489 return -ENODEV; 1489 return -ENODEV;
1490 } else 1490 } else
1491 return ftdi_elan_read_pcimem(ftdi, mem_offset, width, data); 1491 return ftdi_elan_read_pcimem(ftdi, mem_offset, width, data);
1492} 1492}
1493 1493
1494 1494
1495EXPORT_SYMBOL_GPL(usb_ftdi_elan_read_pcimem); 1495EXPORT_SYMBOL_GPL(usb_ftdi_elan_read_pcimem);
1496static int ftdi_elan_edset_setup(struct usb_ftdi *ftdi, u8 ed_number, 1496static int ftdi_elan_edset_setup(struct usb_ftdi *ftdi, u8 ed_number,
1497 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, 1497 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
1498 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 1498 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
1499 int toggle_bits, int error_count, int condition_code, int repeat_number, 1499 int toggle_bits, int error_count, int condition_code, int repeat_number,
1500 int halted, int skipped, int actual, int non_null)) 1500 int halted, int skipped, int actual, int non_null))
1501{ 1501{
1502 u8 ed = ed_number - 1; 1502 u8 ed = ed_number - 1;
1503 wait:if (ftdi->disconnected > 0) { 1503wait:if (ftdi->disconnected > 0) {
1504 return -ENODEV; 1504 return -ENODEV;
1505 } else if (ftdi->initialized == 0) { 1505 } else if (ftdi->initialized == 0) {
1506 return -ENODEV; 1506 return -ENODEV;
1507 } else { 1507 } else {
1508 int command_size; 1508 int command_size;
1509 mutex_lock(&ftdi->u132_lock); 1509 mutex_lock(&ftdi->u132_lock);
1510 command_size = ftdi->command_next - ftdi->command_head; 1510 command_size = ftdi->command_next - ftdi->command_head;
1511 if (command_size < COMMAND_SIZE) { 1511 if (command_size < COMMAND_SIZE) {
1512 struct u132_target *target = &ftdi->target[ed]; 1512 struct u132_target *target = &ftdi->target[ed];
1513 struct u132_command *command = &ftdi->command[ 1513 struct u132_command *command = &ftdi->command[
1514 COMMAND_MASK & ftdi->command_next]; 1514 COMMAND_MASK & ftdi->command_next];
1515 command->header = 0x80 | (ed << 5); 1515 command->header = 0x80 | (ed << 5);
1516 command->length = 0x8007; 1516 command->length = 0x8007;
1517 command->address = (toggle_bits << 6) | (ep_number << 2) 1517 command->address = (toggle_bits << 6) | (ep_number << 2)
1518 | (address << 0); 1518 | (address << 0);
1519 command->width = usb_maxpacket(urb->dev, urb->pipe, 1519 command->width = usb_maxpacket(urb->dev, urb->pipe,
1520 usb_pipeout(urb->pipe)); 1520 usb_pipeout(urb->pipe));
1521 command->follows = 8; 1521 command->follows = 8;
1522 command->value = 0; 1522 command->value = 0;
1523 command->buffer = urb->setup_packet; 1523 command->buffer = urb->setup_packet;
1524 target->callback = callback; 1524 target->callback = callback;
1525 target->endp = endp; 1525 target->endp = endp;
1526 target->urb = urb; 1526 target->urb = urb;
1527 target->active = 1; 1527 target->active = 1;
1528 ftdi->command_next += 1; 1528 ftdi->command_next += 1;
1529 ftdi_elan_kick_command_queue(ftdi); 1529 ftdi_elan_kick_command_queue(ftdi);
1530 mutex_unlock(&ftdi->u132_lock); 1530 mutex_unlock(&ftdi->u132_lock);
1531 return 0; 1531 return 0;
1532 } else { 1532 } else {
1533 mutex_unlock(&ftdi->u132_lock); 1533 mutex_unlock(&ftdi->u132_lock);
1534 msleep(100); 1534 msleep(100);
1535 goto wait; 1535 goto wait;
1536 } 1536 }
1537 } 1537 }
1538} 1538}
1539 1539
1540int usb_ftdi_elan_edset_setup(struct platform_device *pdev, u8 ed_number, 1540int usb_ftdi_elan_edset_setup(struct platform_device *pdev, u8 ed_number,
1541 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, 1541 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
1542 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 1542 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
1543 int toggle_bits, int error_count, int condition_code, int repeat_number, 1543 int toggle_bits, int error_count, int condition_code, int repeat_number,
1544 int halted, int skipped, int actual, int non_null)) 1544 int halted, int skipped, int actual, int non_null))
1545{ 1545{
1546 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); 1546 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
1547 return ftdi_elan_edset_setup(ftdi, ed_number, endp, urb, address, 1547 return ftdi_elan_edset_setup(ftdi, ed_number, endp, urb, address,
1548 ep_number, toggle_bits, callback); 1548 ep_number, toggle_bits, callback);
1549} 1549}
1550 1550
1551 1551
1552EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_setup); 1552EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_setup);
1553static int ftdi_elan_edset_input(struct usb_ftdi *ftdi, u8 ed_number, 1553static int ftdi_elan_edset_input(struct usb_ftdi *ftdi, u8 ed_number,
1554 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, 1554 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
1555 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 1555 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
1556 int toggle_bits, int error_count, int condition_code, int repeat_number, 1556 int toggle_bits, int error_count, int condition_code, int repeat_number,
1557 int halted, int skipped, int actual, int non_null)) 1557 int halted, int skipped, int actual, int non_null))
1558{ 1558{
1559 u8 ed = ed_number - 1; 1559 u8 ed = ed_number - 1;
1560 wait:if (ftdi->disconnected > 0) { 1560wait:if (ftdi->disconnected > 0) {
1561 return -ENODEV; 1561 return -ENODEV;
1562 } else if (ftdi->initialized == 0) { 1562 } else if (ftdi->initialized == 0) {
1563 return -ENODEV; 1563 return -ENODEV;
1564 } else { 1564 } else {
1565 int command_size; 1565 int command_size;
1566 mutex_lock(&ftdi->u132_lock); 1566 mutex_lock(&ftdi->u132_lock);
1567 command_size = ftdi->command_next - ftdi->command_head; 1567 command_size = ftdi->command_next - ftdi->command_head;
1568 if (command_size < COMMAND_SIZE) { 1568 if (command_size < COMMAND_SIZE) {
1569 struct u132_target *target = &ftdi->target[ed]; 1569 struct u132_target *target = &ftdi->target[ed];
1570 struct u132_command *command = &ftdi->command[ 1570 struct u132_command *command = &ftdi->command[
1571 COMMAND_MASK & ftdi->command_next]; 1571 COMMAND_MASK & ftdi->command_next];
1572 u32 remaining_length = urb->transfer_buffer_length - 1572 u32 remaining_length = urb->transfer_buffer_length -
1573 urb->actual_length; 1573 urb->actual_length;
1574 command->header = 0x82 | (ed << 5); 1574 command->header = 0x82 | (ed << 5);
1575 if (remaining_length == 0) { 1575 if (remaining_length == 0) {
1576 command->length = 0x0000; 1576 command->length = 0x0000;
1577 } else if (remaining_length > 1024) { 1577 } else if (remaining_length > 1024) {
1578 command->length = 0x8000 | 1023; 1578 command->length = 0x8000 | 1023;
1579 } else 1579 } else
1580 command->length = 0x8000 | (remaining_length - 1580 command->length = 0x8000 | (remaining_length -
1581 1); 1581 1);
1582 command->address = (toggle_bits << 6) | (ep_number << 2) 1582 command->address = (toggle_bits << 6) | (ep_number << 2)
1583 | (address << 0); 1583 | (address << 0);
1584 command->width = usb_maxpacket(urb->dev, urb->pipe, 1584 command->width = usb_maxpacket(urb->dev, urb->pipe,
1585 usb_pipeout(urb->pipe)); 1585 usb_pipeout(urb->pipe));
1586 command->follows = 0; 1586 command->follows = 0;
1587 command->value = 0; 1587 command->value = 0;
1588 command->buffer = NULL; 1588 command->buffer = NULL;
1589 target->callback = callback; 1589 target->callback = callback;
1590 target->endp = endp; 1590 target->endp = endp;
1591 target->urb = urb; 1591 target->urb = urb;
1592 target->active = 1; 1592 target->active = 1;
1593 ftdi->command_next += 1; 1593 ftdi->command_next += 1;
1594 ftdi_elan_kick_command_queue(ftdi); 1594 ftdi_elan_kick_command_queue(ftdi);
1595 mutex_unlock(&ftdi->u132_lock); 1595 mutex_unlock(&ftdi->u132_lock);
1596 return 0; 1596 return 0;
1597 } else { 1597 } else {
1598 mutex_unlock(&ftdi->u132_lock); 1598 mutex_unlock(&ftdi->u132_lock);
1599 msleep(100); 1599 msleep(100);
1600 goto wait; 1600 goto wait;
1601 } 1601 }
1602 } 1602 }
1603} 1603}
1604 1604
1605int usb_ftdi_elan_edset_input(struct platform_device *pdev, u8 ed_number, 1605int usb_ftdi_elan_edset_input(struct platform_device *pdev, u8 ed_number,
1606 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, 1606 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
1607 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 1607 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
1608 int toggle_bits, int error_count, int condition_code, int repeat_number, 1608 int toggle_bits, int error_count, int condition_code, int repeat_number,
1609 int halted, int skipped, int actual, int non_null)) 1609 int halted, int skipped, int actual, int non_null))
1610{ 1610{
1611 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); 1611 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
1612 return ftdi_elan_edset_input(ftdi, ed_number, endp, urb, address, 1612 return ftdi_elan_edset_input(ftdi, ed_number, endp, urb, address,
1613 ep_number, toggle_bits, callback); 1613 ep_number, toggle_bits, callback);
1614} 1614}
1615 1615
1616 1616
1617EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_input); 1617EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_input);
1618static int ftdi_elan_edset_empty(struct usb_ftdi *ftdi, u8 ed_number, 1618static int ftdi_elan_edset_empty(struct usb_ftdi *ftdi, u8 ed_number,
1619 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, 1619 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
1620 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 1620 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
1621 int toggle_bits, int error_count, int condition_code, int repeat_number, 1621 int toggle_bits, int error_count, int condition_code, int repeat_number,
1622 int halted, int skipped, int actual, int non_null)) 1622 int halted, int skipped, int actual, int non_null))
1623{ 1623{
1624 u8 ed = ed_number - 1; 1624 u8 ed = ed_number - 1;
1625 wait:if (ftdi->disconnected > 0) { 1625wait:if (ftdi->disconnected > 0) {
1626 return -ENODEV; 1626 return -ENODEV;
1627 } else if (ftdi->initialized == 0) { 1627 } else if (ftdi->initialized == 0) {
1628 return -ENODEV; 1628 return -ENODEV;
1629 } else { 1629 } else {
1630 int command_size; 1630 int command_size;
1631 mutex_lock(&ftdi->u132_lock); 1631 mutex_lock(&ftdi->u132_lock);
1632 command_size = ftdi->command_next - ftdi->command_head; 1632 command_size = ftdi->command_next - ftdi->command_head;
1633 if (command_size < COMMAND_SIZE) { 1633 if (command_size < COMMAND_SIZE) {
1634 struct u132_target *target = &ftdi->target[ed]; 1634 struct u132_target *target = &ftdi->target[ed];
1635 struct u132_command *command = &ftdi->command[ 1635 struct u132_command *command = &ftdi->command[
1636 COMMAND_MASK & ftdi->command_next]; 1636 COMMAND_MASK & ftdi->command_next];
1637 command->header = 0x81 | (ed << 5); 1637 command->header = 0x81 | (ed << 5);
1638 command->length = 0x0000; 1638 command->length = 0x0000;
1639 command->address = (toggle_bits << 6) | (ep_number << 2) 1639 command->address = (toggle_bits << 6) | (ep_number << 2)
1640 | (address << 0); 1640 | (address << 0);
1641 command->width = usb_maxpacket(urb->dev, urb->pipe, 1641 command->width = usb_maxpacket(urb->dev, urb->pipe,
1642 usb_pipeout(urb->pipe)); 1642 usb_pipeout(urb->pipe));
1643 command->follows = 0; 1643 command->follows = 0;
1644 command->value = 0; 1644 command->value = 0;
1645 command->buffer = NULL; 1645 command->buffer = NULL;
1646 target->callback = callback; 1646 target->callback = callback;
1647 target->endp = endp; 1647 target->endp = endp;
1648 target->urb = urb; 1648 target->urb = urb;
1649 target->active = 1; 1649 target->active = 1;
1650 ftdi->command_next += 1; 1650 ftdi->command_next += 1;
1651 ftdi_elan_kick_command_queue(ftdi); 1651 ftdi_elan_kick_command_queue(ftdi);
1652 mutex_unlock(&ftdi->u132_lock); 1652 mutex_unlock(&ftdi->u132_lock);
1653 return 0; 1653 return 0;
1654 } else { 1654 } else {
1655 mutex_unlock(&ftdi->u132_lock); 1655 mutex_unlock(&ftdi->u132_lock);
1656 msleep(100); 1656 msleep(100);
1657 goto wait; 1657 goto wait;
1658 } 1658 }
1659 } 1659 }
1660} 1660}
1661 1661
1662int usb_ftdi_elan_edset_empty(struct platform_device *pdev, u8 ed_number, 1662int usb_ftdi_elan_edset_empty(struct platform_device *pdev, u8 ed_number,
1663 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, 1663 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
1664 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 1664 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
1665 int toggle_bits, int error_count, int condition_code, int repeat_number, 1665 int toggle_bits, int error_count, int condition_code, int repeat_number,
1666 int halted, int skipped, int actual, int non_null)) 1666 int halted, int skipped, int actual, int non_null))
1667{ 1667{
1668 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); 1668 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
1669 return ftdi_elan_edset_empty(ftdi, ed_number, endp, urb, address, 1669 return ftdi_elan_edset_empty(ftdi, ed_number, endp, urb, address,
1670 ep_number, toggle_bits, callback); 1670 ep_number, toggle_bits, callback);
1671} 1671}
1672 1672
1673 1673
1674EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_empty); 1674EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_empty);
1675static int ftdi_elan_edset_output(struct usb_ftdi *ftdi, u8 ed_number, 1675static int ftdi_elan_edset_output(struct usb_ftdi *ftdi, u8 ed_number,
1676 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, 1676 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
1677 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 1677 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
1678 int toggle_bits, int error_count, int condition_code, int repeat_number, 1678 int toggle_bits, int error_count, int condition_code, int repeat_number,
1679 int halted, int skipped, int actual, int non_null)) 1679 int halted, int skipped, int actual, int non_null))
1680{ 1680{
1681 u8 ed = ed_number - 1; 1681 u8 ed = ed_number - 1;
1682 wait:if (ftdi->disconnected > 0) { 1682wait:if (ftdi->disconnected > 0) {
1683 return -ENODEV; 1683 return -ENODEV;
1684 } else if (ftdi->initialized == 0) { 1684 } else if (ftdi->initialized == 0) {
1685 return -ENODEV; 1685 return -ENODEV;
1686 } else { 1686 } else {
1687 int command_size; 1687 int command_size;
1688 mutex_lock(&ftdi->u132_lock); 1688 mutex_lock(&ftdi->u132_lock);
1689 command_size = ftdi->command_next - ftdi->command_head; 1689 command_size = ftdi->command_next - ftdi->command_head;
1690 if (command_size < COMMAND_SIZE) { 1690 if (command_size < COMMAND_SIZE) {
1691 u8 *b; 1691 u8 *b;
1692 u16 urb_size; 1692 u16 urb_size;
1693 int i = 0; 1693 int i = 0;
1694 char data[30 *3 + 4]; 1694 char data[30 *3 + 4];
1695 char *d = data; 1695 char *d = data;
1696 int m = (sizeof(data) - 1) / 3; 1696 int m = (sizeof(data) - 1) / 3;
1697 int l = 0; 1697 int l = 0;
1698 struct u132_target *target = &ftdi->target[ed]; 1698 struct u132_target *target = &ftdi->target[ed];
1699 struct u132_command *command = &ftdi->command[ 1699 struct u132_command *command = &ftdi->command[
1700 COMMAND_MASK & ftdi->command_next]; 1700 COMMAND_MASK & ftdi->command_next];
1701 command->header = 0x81 | (ed << 5); 1701 command->header = 0x81 | (ed << 5);
1702 command->address = (toggle_bits << 6) | (ep_number << 2) 1702 command->address = (toggle_bits << 6) | (ep_number << 2)
1703 | (address << 0); 1703 | (address << 0);
1704 command->width = usb_maxpacket(urb->dev, urb->pipe, 1704 command->width = usb_maxpacket(urb->dev, urb->pipe,
1705 usb_pipeout(urb->pipe)); 1705 usb_pipeout(urb->pipe));
1706 command->follows = min_t(u32, 1024, 1706 command->follows = min_t(u32, 1024,
1707 urb->transfer_buffer_length - 1707 urb->transfer_buffer_length -
1708 urb->actual_length); 1708 urb->actual_length);
1709 command->value = 0; 1709 command->value = 0;
1710 command->buffer = urb->transfer_buffer + 1710 command->buffer = urb->transfer_buffer +
1711 urb->actual_length; 1711 urb->actual_length;
1712 command->length = 0x8000 | (command->follows - 1); 1712 command->length = 0x8000 | (command->follows - 1);
1713 b = command->buffer; 1713 b = command->buffer;
1714 urb_size = command->follows; 1714 urb_size = command->follows;
1715 data[0] = 0; 1715 data[0] = 0;
1716 while (urb_size-- > 0) { 1716 while (urb_size-- > 0) {
1717 if (i > m) { 1717 if (i > m) {
1718 } else if (i++ < m) { 1718 } else if (i++ < m) {
1719 int w = sprintf(d, " %02X", *b++); 1719 int w = sprintf(d, " %02X", *b++);
1720 d += w; 1720 d += w;
1721 l += w; 1721 l += w;
1722 } else 1722 } else
1723 d += sprintf(d, " .."); 1723 d += sprintf(d, " ..");
1724 } 1724 }
1725 target->callback = callback; 1725 target->callback = callback;
1726 target->endp = endp; 1726 target->endp = endp;
1727 target->urb = urb; 1727 target->urb = urb;
1728 target->active = 1; 1728 target->active = 1;
1729 ftdi->command_next += 1; 1729 ftdi->command_next += 1;
1730 ftdi_elan_kick_command_queue(ftdi); 1730 ftdi_elan_kick_command_queue(ftdi);
1731 mutex_unlock(&ftdi->u132_lock); 1731 mutex_unlock(&ftdi->u132_lock);
1732 return 0; 1732 return 0;
1733 } else { 1733 } else {
1734 mutex_unlock(&ftdi->u132_lock); 1734 mutex_unlock(&ftdi->u132_lock);
1735 msleep(100); 1735 msleep(100);
1736 goto wait; 1736 goto wait;
1737 } 1737 }
1738 } 1738 }
1739} 1739}
1740 1740
1741int usb_ftdi_elan_edset_output(struct platform_device *pdev, u8 ed_number, 1741int usb_ftdi_elan_edset_output(struct platform_device *pdev, u8 ed_number,
1742 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, 1742 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
1743 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 1743 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
1744 int toggle_bits, int error_count, int condition_code, int repeat_number, 1744 int toggle_bits, int error_count, int condition_code, int repeat_number,
1745 int halted, int skipped, int actual, int non_null)) 1745 int halted, int skipped, int actual, int non_null))
1746{ 1746{
1747 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); 1747 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
1748 return ftdi_elan_edset_output(ftdi, ed_number, endp, urb, address, 1748 return ftdi_elan_edset_output(ftdi, ed_number, endp, urb, address,
1749 ep_number, toggle_bits, callback); 1749 ep_number, toggle_bits, callback);
1750} 1750}
1751 1751
1752 1752
1753EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_output); 1753EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_output);
1754static int ftdi_elan_edset_single(struct usb_ftdi *ftdi, u8 ed_number, 1754static int ftdi_elan_edset_single(struct usb_ftdi *ftdi, u8 ed_number,
1755 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, 1755 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
1756 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 1756 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
1757 int toggle_bits, int error_count, int condition_code, int repeat_number, 1757 int toggle_bits, int error_count, int condition_code, int repeat_number,
1758 int halted, int skipped, int actual, int non_null)) 1758 int halted, int skipped, int actual, int non_null))
1759{ 1759{
1760 u8 ed = ed_number - 1; 1760 u8 ed = ed_number - 1;
1761 wait:if (ftdi->disconnected > 0) { 1761wait:if (ftdi->disconnected > 0) {
1762 return -ENODEV; 1762 return -ENODEV;
1763 } else if (ftdi->initialized == 0) { 1763 } else if (ftdi->initialized == 0) {
1764 return -ENODEV; 1764 return -ENODEV;
1765 } else { 1765 } else {
1766 int command_size; 1766 int command_size;
1767 mutex_lock(&ftdi->u132_lock); 1767 mutex_lock(&ftdi->u132_lock);
1768 command_size = ftdi->command_next - ftdi->command_head; 1768 command_size = ftdi->command_next - ftdi->command_head;
1769 if (command_size < COMMAND_SIZE) { 1769 if (command_size < COMMAND_SIZE) {
1770 u32 remaining_length = urb->transfer_buffer_length - 1770 u32 remaining_length = urb->transfer_buffer_length -
1771 urb->actual_length; 1771 urb->actual_length;
1772 struct u132_target *target = &ftdi->target[ed]; 1772 struct u132_target *target = &ftdi->target[ed];
1773 struct u132_command *command = &ftdi->command[ 1773 struct u132_command *command = &ftdi->command[
1774 COMMAND_MASK & ftdi->command_next]; 1774 COMMAND_MASK & ftdi->command_next];
1775 command->header = 0x83 | (ed << 5); 1775 command->header = 0x83 | (ed << 5);
1776 if (remaining_length == 0) { 1776 if (remaining_length == 0) {
1777 command->length = 0x0000; 1777 command->length = 0x0000;
1778 } else if (remaining_length > 1024) { 1778 } else if (remaining_length > 1024) {
1779 command->length = 0x8000 | 1023; 1779 command->length = 0x8000 | 1023;
1780 } else 1780 } else
1781 command->length = 0x8000 | (remaining_length - 1781 command->length = 0x8000 | (remaining_length -
1782 1); 1782 1);
1783 command->address = (toggle_bits << 6) | (ep_number << 2) 1783 command->address = (toggle_bits << 6) | (ep_number << 2)
1784 | (address << 0); 1784 | (address << 0);
1785 command->width = usb_maxpacket(urb->dev, urb->pipe, 1785 command->width = usb_maxpacket(urb->dev, urb->pipe,
1786 usb_pipeout(urb->pipe)); 1786 usb_pipeout(urb->pipe));
1787 command->follows = 0; 1787 command->follows = 0;
1788 command->value = 0; 1788 command->value = 0;
1789 command->buffer = NULL; 1789 command->buffer = NULL;
1790 target->callback = callback; 1790 target->callback = callback;
1791 target->endp = endp; 1791 target->endp = endp;
1792 target->urb = urb; 1792 target->urb = urb;
1793 target->active = 1; 1793 target->active = 1;
1794 ftdi->command_next += 1; 1794 ftdi->command_next += 1;
1795 ftdi_elan_kick_command_queue(ftdi); 1795 ftdi_elan_kick_command_queue(ftdi);
1796 mutex_unlock(&ftdi->u132_lock); 1796 mutex_unlock(&ftdi->u132_lock);
1797 return 0; 1797 return 0;
1798 } else { 1798 } else {
1799 mutex_unlock(&ftdi->u132_lock); 1799 mutex_unlock(&ftdi->u132_lock);
1800 msleep(100); 1800 msleep(100);
1801 goto wait; 1801 goto wait;
1802 } 1802 }
1803 } 1803 }
1804} 1804}
1805 1805
1806int usb_ftdi_elan_edset_single(struct platform_device *pdev, u8 ed_number, 1806int usb_ftdi_elan_edset_single(struct platform_device *pdev, u8 ed_number,
1807 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, 1807 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
1808 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, 1808 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
1809 int toggle_bits, int error_count, int condition_code, int repeat_number, 1809 int toggle_bits, int error_count, int condition_code, int repeat_number,
1810 int halted, int skipped, int actual, int non_null)) 1810 int halted, int skipped, int actual, int non_null))
1811{ 1811{
1812 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); 1812 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
1813 return ftdi_elan_edset_single(ftdi, ed_number, endp, urb, address, 1813 return ftdi_elan_edset_single(ftdi, ed_number, endp, urb, address,
1814 ep_number, toggle_bits, callback); 1814 ep_number, toggle_bits, callback);
1815} 1815}
1816 1816
1817 1817
1818EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_single); 1818EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_single);
1819static int ftdi_elan_edset_flush(struct usb_ftdi *ftdi, u8 ed_number, 1819static int ftdi_elan_edset_flush(struct usb_ftdi *ftdi, u8 ed_number,
1820 void *endp) 1820 void *endp)
1821{ 1821{
1822 u8 ed = ed_number - 1; 1822 u8 ed = ed_number - 1;
1823 if (ftdi->disconnected > 0) { 1823 if (ftdi->disconnected > 0) {
1824 return -ENODEV; 1824 return -ENODEV;
1825 } else if (ftdi->initialized == 0) { 1825 } else if (ftdi->initialized == 0) {
1826 return -ENODEV; 1826 return -ENODEV;
1827 } else { 1827 } else {
1828 struct u132_target *target = &ftdi->target[ed]; 1828 struct u132_target *target = &ftdi->target[ed];
1829 mutex_lock(&ftdi->u132_lock); 1829 mutex_lock(&ftdi->u132_lock);
1830 if (target->abandoning > 0) { 1830 if (target->abandoning > 0) {
1831 mutex_unlock(&ftdi->u132_lock); 1831 mutex_unlock(&ftdi->u132_lock);
1832 return 0; 1832 return 0;
1833 } else { 1833 } else {
1834 target->abandoning = 1; 1834 target->abandoning = 1;
1835 wait_1:if (target->active == 1) { 1835 wait_1:if (target->active == 1) {
1836 int command_size = ftdi->command_next - 1836 int command_size = ftdi->command_next -
1837 ftdi->command_head; 1837 ftdi->command_head;
1838 if (command_size < COMMAND_SIZE) { 1838 if (command_size < COMMAND_SIZE) {
1839 struct u132_command *command = 1839 struct u132_command *command =
1840 &ftdi->command[COMMAND_MASK & 1840 &ftdi->command[COMMAND_MASK &
1841 ftdi->command_next]; 1841 ftdi->command_next];
1842 command->header = 0x80 | (ed << 5) | 1842 command->header = 0x80 | (ed << 5) |
1843 0x4; 1843 0x4;
1844 command->length = 0x00; 1844 command->length = 0x00;
1845 command->address = 0x00; 1845 command->address = 0x00;
1846 command->width = 0x00; 1846 command->width = 0x00;
1847 command->follows = 0; 1847 command->follows = 0;
1848 command->value = 0; 1848 command->value = 0;
1849 command->buffer = &command->value; 1849 command->buffer = &command->value;
1850 ftdi->command_next += 1; 1850 ftdi->command_next += 1;
1851 ftdi_elan_kick_command_queue(ftdi); 1851 ftdi_elan_kick_command_queue(ftdi);
1852 } else { 1852 } else {
1853 mutex_unlock(&ftdi->u132_lock); 1853 mutex_unlock(&ftdi->u132_lock);
1854 msleep(100); 1854 msleep(100);
1855 mutex_lock(&ftdi->u132_lock); 1855 mutex_lock(&ftdi->u132_lock);
1856 goto wait_1; 1856 goto wait_1;
1857 } 1857 }
1858 } 1858 }
1859 mutex_unlock(&ftdi->u132_lock); 1859 mutex_unlock(&ftdi->u132_lock);
1860 return 0; 1860 return 0;
1861 } 1861 }
1862 } 1862 }
1863} 1863}
1864 1864
1865int usb_ftdi_elan_edset_flush(struct platform_device *pdev, u8 ed_number, 1865int usb_ftdi_elan_edset_flush(struct platform_device *pdev, u8 ed_number,
1866 void *endp) 1866 void *endp)
1867{ 1867{
1868 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); 1868 struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
1869 return ftdi_elan_edset_flush(ftdi, ed_number, endp); 1869 return ftdi_elan_edset_flush(ftdi, ed_number, endp);
1870} 1870}
1871 1871
1872 1872
1873EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_flush); 1873EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_flush);
1874static int ftdi_elan_flush_input_fifo(struct usb_ftdi *ftdi) 1874static int ftdi_elan_flush_input_fifo(struct usb_ftdi *ftdi)
1875{ 1875{
1876 int retry_on_empty = 10; 1876 int retry_on_empty = 10;
1877 int retry_on_timeout = 5; 1877 int retry_on_timeout = 5;
1878 int retry_on_status = 20; 1878 int retry_on_status = 20;
1879 more:{ 1879more:{
1880 int packet_bytes = 0; 1880 int packet_bytes = 0;
1881 int retval = usb_bulk_msg(ftdi->udev, 1881 int retval = usb_bulk_msg(ftdi->udev,
1882 usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), 1882 usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
1883 ftdi->bulk_in_buffer, ftdi->bulk_in_size, 1883 ftdi->bulk_in_buffer, ftdi->bulk_in_size,
1884 &packet_bytes, 100); 1884 &packet_bytes, 100);
1885 if (packet_bytes > 2) { 1885 if (packet_bytes > 2) {
1886 char diag[30 *3 + 4]; 1886 char diag[30 *3 + 4];
1887 char *d = diag; 1887 char *d = diag;
1888 int m = (sizeof(diag) - 1) / 3; 1888 int m = (sizeof(diag) - 1) / 3;
1889 char *b = ftdi->bulk_in_buffer; 1889 char *b = ftdi->bulk_in_buffer;
1890 int bytes_read = 0; 1890 int bytes_read = 0;
1891 diag[0] = 0; 1891 diag[0] = 0;
1892 while (packet_bytes-- > 0) { 1892 while (packet_bytes-- > 0) {
1893 char c = *b++; 1893 char c = *b++;
1894 if (bytes_read < m) { 1894 if (bytes_read < m) {
1895 d += sprintf(d, " %02X", 1895 d += sprintf(d, " %02X",
1896 0x000000FF & c); 1896 0x000000FF & c);
1897 } else if (bytes_read > m) { 1897 } else if (bytes_read > m) {
1898 } else 1898 } else
1899 d += sprintf(d, " .."); 1899 d += sprintf(d, " ..");
1900 bytes_read += 1; 1900 bytes_read += 1;
1901 continue; 1901 continue;
1902 } 1902 }
1903 goto more; 1903 goto more;
1904 } else if (packet_bytes > 1) { 1904 } else if (packet_bytes > 1) {
1905 char s1 = ftdi->bulk_in_buffer[0]; 1905 char s1 = ftdi->bulk_in_buffer[0];
1906 char s2 = ftdi->bulk_in_buffer[1]; 1906 char s2 = ftdi->bulk_in_buffer[1];
1907 if (s1 == 0x31 && s2 == 0x60) { 1907 if (s1 == 0x31 && s2 == 0x60) {
1908 return 0; 1908 return 0;
1909 } else if (retry_on_status-- > 0) { 1909 } else if (retry_on_status-- > 0) {
1910 goto more; 1910 goto more;
1911 } else { 1911 } else {
1912 dev_err(&ftdi->udev->dev, "STATUS ERROR retry l" 1912 dev_err(&ftdi->udev->dev, "STATUS ERROR retry l"
1913 "imit reached\n"); 1913 "imit reached\n");
1914 return -EFAULT; 1914 return -EFAULT;
1915 } 1915 }
1916 } else if (packet_bytes > 0) { 1916 } else if (packet_bytes > 0) {
1917 char b1 = ftdi->bulk_in_buffer[0]; 1917 char b1 = ftdi->bulk_in_buffer[0];
1918 dev_err(&ftdi->udev->dev, "only one byte flushed from F" 1918 dev_err(&ftdi->udev->dev, "only one byte flushed from F"
1919 "TDI = %02X\n", b1); 1919 "TDI = %02X\n", b1);
1920 if (retry_on_status-- > 0) { 1920 if (retry_on_status-- > 0) {
1921 goto more; 1921 goto more;
1922 } else { 1922 } else {
1923 dev_err(&ftdi->udev->dev, "STATUS ERROR retry l" 1923 dev_err(&ftdi->udev->dev, "STATUS ERROR retry l"
1924 "imit reached\n"); 1924 "imit reached\n");
1925 return -EFAULT; 1925 return -EFAULT;
1926 } 1926 }
1927 } else if (retval == -ETIMEDOUT) { 1927 } else if (retval == -ETIMEDOUT) {
1928 if (retry_on_timeout-- > 0) { 1928 if (retry_on_timeout-- > 0) {
1929 goto more; 1929 goto more;
1930 } else { 1930 } else {
1931 dev_err(&ftdi->udev->dev, "TIMED OUT retry limi" 1931 dev_err(&ftdi->udev->dev, "TIMED OUT retry limi"
1932 "t reached\n"); 1932 "t reached\n");
1933 return -ENOMEM; 1933 return -ENOMEM;
1934 } 1934 }
1935 } else if (retval == 0) { 1935 } else if (retval == 0) {
1936 if (retry_on_empty-- > 0) { 1936 if (retry_on_empty-- > 0) {
1937 goto more; 1937 goto more;
1938 } else { 1938 } else {
1939 dev_err(&ftdi->udev->dev, "empty packet retry l" 1939 dev_err(&ftdi->udev->dev, "empty packet retry l"
1940 "imit reached\n"); 1940 "imit reached\n");
1941 return -ENOMEM; 1941 return -ENOMEM;
1942 } 1942 }
1943 } else { 1943 } else {
1944 dev_err(&ftdi->udev->dev, "error = %d\n", retval); 1944 dev_err(&ftdi->udev->dev, "error = %d\n", retval);
1945 return retval; 1945 return retval;
1946 } 1946 }
1947 } 1947 }
1948 return -1; 1948 return -1;
1949} 1949}
1950 1950
1951 1951
1952/* 1952/*
1953* send the long flush sequence 1953 * send the long flush sequence
1954* 1954 *
1955*/ 1955 */
1956static int ftdi_elan_synchronize_flush(struct usb_ftdi *ftdi) 1956static int ftdi_elan_synchronize_flush(struct usb_ftdi *ftdi)
1957{ 1957{
1958 int retval; 1958 int retval;
1959 struct urb *urb; 1959 struct urb *urb;
1960 char *buf; 1960 char *buf;
1961 int I = 257; 1961 int I = 257;
1962 int i = 0; 1962 int i = 0;
1963 urb = usb_alloc_urb(0, GFP_KERNEL); 1963 urb = usb_alloc_urb(0, GFP_KERNEL);
1964 if (!urb) { 1964 if (!urb) {
1965 dev_err(&ftdi->udev->dev, "could not alloc a urb for flush sequ" 1965 dev_err(&ftdi->udev->dev, "could not alloc a urb for flush sequ"
1966 "ence\n"); 1966 "ence\n");
1967 return -ENOMEM; 1967 return -ENOMEM;
1968 } 1968 }
1969 buf = usb_alloc_coherent(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma); 1969 buf = usb_alloc_coherent(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma);
1970 if (!buf) { 1970 if (!buf) {
1971 dev_err(&ftdi->udev->dev, "could not get a buffer for flush seq" 1971 dev_err(&ftdi->udev->dev, "could not get a buffer for flush seq"
1972 "uence\n"); 1972 "uence\n");
1973 usb_free_urb(urb); 1973 usb_free_urb(urb);
1974 return -ENOMEM; 1974 return -ENOMEM;
1975 } 1975 }
1976 while (I-- > 0) 1976 while (I-- > 0)
1977 buf[i++] = 0x55; 1977 buf[i++] = 0x55;
1978 usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev, 1978 usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
1979 ftdi->bulk_out_endpointAddr), buf, i, 1979 ftdi->bulk_out_endpointAddr), buf, i,
1980 ftdi_elan_write_bulk_callback, ftdi); 1980 ftdi_elan_write_bulk_callback, ftdi);
1981 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1981 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1982 retval = usb_submit_urb(urb, GFP_KERNEL); 1982 retval = usb_submit_urb(urb, GFP_KERNEL);
1983 if (retval) { 1983 if (retval) {
1984 dev_err(&ftdi->udev->dev, "failed to submit urb containing the " 1984 dev_err(&ftdi->udev->dev, "failed to submit urb containing the "
1985 "flush sequence\n"); 1985 "flush sequence\n");
1986 usb_free_coherent(ftdi->udev, i, buf, urb->transfer_dma); 1986 usb_free_coherent(ftdi->udev, i, buf, urb->transfer_dma);
1987 usb_free_urb(urb); 1987 usb_free_urb(urb);
1988 return -ENOMEM; 1988 return -ENOMEM;
1989 } 1989 }
1990 usb_free_urb(urb); 1990 usb_free_urb(urb);
1991 return 0; 1991 return 0;
1992} 1992}
1993 1993
1994 1994
1995/* 1995/*
1996* send the reset sequence 1996 * send the reset sequence
1997* 1997 *
1998*/ 1998 */
1999static int ftdi_elan_synchronize_reset(struct usb_ftdi *ftdi) 1999static int ftdi_elan_synchronize_reset(struct usb_ftdi *ftdi)
2000{ 2000{
2001 int retval; 2001 int retval;
2002 struct urb *urb; 2002 struct urb *urb;
2003 char *buf; 2003 char *buf;
2004 int I = 4; 2004 int I = 4;
2005 int i = 0; 2005 int i = 0;
2006 urb = usb_alloc_urb(0, GFP_KERNEL); 2006 urb = usb_alloc_urb(0, GFP_KERNEL);
2007 if (!urb) { 2007 if (!urb) {
2008 dev_err(&ftdi->udev->dev, "could not get a urb for the reset se" 2008 dev_err(&ftdi->udev->dev, "could not get a urb for the reset se"
2009 "quence\n"); 2009 "quence\n");
2010 return -ENOMEM; 2010 return -ENOMEM;
2011 } 2011 }
2012 buf = usb_alloc_coherent(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma); 2012 buf = usb_alloc_coherent(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma);
2013 if (!buf) { 2013 if (!buf) {
2014 dev_err(&ftdi->udev->dev, "could not get a buffer for the reset" 2014 dev_err(&ftdi->udev->dev, "could not get a buffer for the reset"
2015 " sequence\n"); 2015 " sequence\n");
2016 usb_free_urb(urb); 2016 usb_free_urb(urb);
2017 return -ENOMEM; 2017 return -ENOMEM;
2018 } 2018 }
2019 buf[i++] = 0x55; 2019 buf[i++] = 0x55;
2020 buf[i++] = 0xAA; 2020 buf[i++] = 0xAA;
2021 buf[i++] = 0x5A; 2021 buf[i++] = 0x5A;
2022 buf[i++] = 0xA5; 2022 buf[i++] = 0xA5;
2023 usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev, 2023 usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
2024 ftdi->bulk_out_endpointAddr), buf, i, 2024 ftdi->bulk_out_endpointAddr), buf, i,
2025 ftdi_elan_write_bulk_callback, ftdi); 2025 ftdi_elan_write_bulk_callback, ftdi);
2026 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 2026 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
2027 retval = usb_submit_urb(urb, GFP_KERNEL); 2027 retval = usb_submit_urb(urb, GFP_KERNEL);
2028 if (retval) { 2028 if (retval) {
2029 dev_err(&ftdi->udev->dev, "failed to submit urb containing the " 2029 dev_err(&ftdi->udev->dev, "failed to submit urb containing the "
2030 "reset sequence\n"); 2030 "reset sequence\n");
2031 usb_free_coherent(ftdi->udev, i, buf, urb->transfer_dma); 2031 usb_free_coherent(ftdi->udev, i, buf, urb->transfer_dma);
2032 usb_free_urb(urb); 2032 usb_free_urb(urb);
2033 return -ENOMEM; 2033 return -ENOMEM;
2034 } 2034 }
2035 usb_free_urb(urb); 2035 usb_free_urb(urb);
2036 return 0; 2036 return 0;
2037} 2037}
2038 2038
2039static int ftdi_elan_synchronize(struct usb_ftdi *ftdi) 2039static int ftdi_elan_synchronize(struct usb_ftdi *ftdi)
2040{ 2040{
2041 int retval; 2041 int retval;
2042 int long_stop = 10; 2042 int long_stop = 10;
2043 int retry_on_timeout = 5; 2043 int retry_on_timeout = 5;
2044 int retry_on_empty = 10; 2044 int retry_on_empty = 10;
2045 int err_count = 0; 2045 int err_count = 0;
2046 retval = ftdi_elan_flush_input_fifo(ftdi); 2046 retval = ftdi_elan_flush_input_fifo(ftdi);
2047 if (retval) 2047 if (retval)
2048 return retval; 2048 return retval;
2049 ftdi->bulk_in_left = 0; 2049 ftdi->bulk_in_left = 0;
2050 ftdi->bulk_in_last = -1; 2050 ftdi->bulk_in_last = -1;
2051 while (long_stop-- > 0) { 2051 while (long_stop-- > 0) {
2052 int read_stop; 2052 int read_stop;
2053 int read_stuck; 2053 int read_stuck;
2054 retval = ftdi_elan_synchronize_flush(ftdi); 2054 retval = ftdi_elan_synchronize_flush(ftdi);
2055 if (retval) 2055 if (retval)
2056 return retval; 2056 return retval;
2057 retval = ftdi_elan_flush_input_fifo(ftdi); 2057 retval = ftdi_elan_flush_input_fifo(ftdi);
2058 if (retval) 2058 if (retval)
2059 return retval; 2059 return retval;
2060 reset:retval = ftdi_elan_synchronize_reset(ftdi); 2060 reset:retval = ftdi_elan_synchronize_reset(ftdi);
2061 if (retval) 2061 if (retval)
2062 return retval; 2062 return retval;
2063 read_stop = 100; 2063 read_stop = 100;
2064 read_stuck = 10; 2064 read_stuck = 10;
2065 read:{ 2065 read:{
2066 int packet_bytes = 0; 2066 int packet_bytes = 0;
2067 retval = usb_bulk_msg(ftdi->udev, 2067 retval = usb_bulk_msg(ftdi->udev,
2068 usb_rcvbulkpipe(ftdi->udev, 2068 usb_rcvbulkpipe(ftdi->udev,
2069 ftdi->bulk_in_endpointAddr), 2069 ftdi->bulk_in_endpointAddr),
2070 ftdi->bulk_in_buffer, ftdi->bulk_in_size, 2070 ftdi->bulk_in_buffer, ftdi->bulk_in_size,
2071 &packet_bytes, 500); 2071 &packet_bytes, 500);
2072 if (packet_bytes > 2) { 2072 if (packet_bytes > 2) {
2073 char diag[30 *3 + 4]; 2073 char diag[30 *3 + 4];
2074 char *d = diag; 2074 char *d = diag;
2075 int m = (sizeof(diag) - 1) / 3; 2075 int m = (sizeof(diag) - 1) / 3;
2076 char *b = ftdi->bulk_in_buffer; 2076 char *b = ftdi->bulk_in_buffer;
2077 int bytes_read = 0; 2077 int bytes_read = 0;
2078 unsigned char c = 0; 2078 unsigned char c = 0;
2079 diag[0] = 0; 2079 diag[0] = 0;
2080 while (packet_bytes-- > 0) { 2080 while (packet_bytes-- > 0) {
2081 c = *b++; 2081 c = *b++;
2082 if (bytes_read < m) { 2082 if (bytes_read < m) {
2083 d += sprintf(d, " %02X", c); 2083 d += sprintf(d, " %02X", c);
2084 } else if (bytes_read > m) { 2084 } else if (bytes_read > m) {
2085 } else 2085 } else
2086 d += sprintf(d, " .."); 2086 d += sprintf(d, " ..");
2087 bytes_read += 1; 2087 bytes_read += 1;
2088 continue; 2088 continue;
2089 } 2089 }
2090 if (c == 0x7E) { 2090 if (c == 0x7E) {
2091 return 0; 2091 return 0;
2092 } else { 2092 } else {
2093 if (c == 0x55) { 2093 if (c == 0x55) {
2094 goto read; 2094 goto read;
2095 } else if (read_stop-- > 0) { 2095 } else if (read_stop-- > 0) {
2096 goto read; 2096 goto read;
2097 } else { 2097 } else {
2098 dev_err(&ftdi->udev->dev, "retr" 2098 dev_err(&ftdi->udev->dev, "retr"
2099 "y limit reached\n"); 2099 "y limit reached\n");
2100 continue; 2100 continue;
2101 } 2101 }
2102 } 2102 }
2103 } else if (packet_bytes > 1) { 2103 } else if (packet_bytes > 1) {
2104 unsigned char s1 = ftdi->bulk_in_buffer[0]; 2104 unsigned char s1 = ftdi->bulk_in_buffer[0];
2105 unsigned char s2 = ftdi->bulk_in_buffer[1]; 2105 unsigned char s2 = ftdi->bulk_in_buffer[1];
2106 if (s1 == 0x31 && s2 == 0x00) { 2106 if (s1 == 0x31 && s2 == 0x00) {
2107 if (read_stuck-- > 0) { 2107 if (read_stuck-- > 0) {
2108 goto read; 2108 goto read;
2109 } else 2109 } else
2110 goto reset; 2110 goto reset;
2111 } else if (s1 == 0x31 && s2 == 0x60) { 2111 } else if (s1 == 0x31 && s2 == 0x60) {
2112 if (read_stop-- > 0) { 2112 if (read_stop-- > 0) {
2113 goto read; 2113 goto read;
2114 } else { 2114 } else {
2115 dev_err(&ftdi->udev->dev, "retr" 2115 dev_err(&ftdi->udev->dev, "retr"
2116 "y limit reached\n"); 2116 "y limit reached\n");
2117 continue; 2117 continue;
2118 } 2118 }
2119 } else { 2119 } else {
2120 if (read_stop-- > 0) { 2120 if (read_stop-- > 0) {
2121 goto read; 2121 goto read;
2122 } else { 2122 } else {
2123 dev_err(&ftdi->udev->dev, "retr" 2123 dev_err(&ftdi->udev->dev, "retr"
2124 "y limit reached\n"); 2124 "y limit reached\n");
2125 continue; 2125 continue;
2126 } 2126 }
2127 } 2127 }
2128 } else if (packet_bytes > 0) { 2128 } else if (packet_bytes > 0) {
2129 if (read_stop-- > 0) { 2129 if (read_stop-- > 0) {
2130 goto read; 2130 goto read;
2131 } else { 2131 } else {
2132 dev_err(&ftdi->udev->dev, "retry limit " 2132 dev_err(&ftdi->udev->dev, "retry limit "
2133 "reached\n"); 2133 "reached\n");
2134 continue; 2134 continue;
2135 } 2135 }
2136 } else if (retval == -ETIMEDOUT) { 2136 } else if (retval == -ETIMEDOUT) {
2137 if (retry_on_timeout-- > 0) { 2137 if (retry_on_timeout-- > 0) {
2138 goto read; 2138 goto read;
2139 } else { 2139 } else {
2140 dev_err(&ftdi->udev->dev, "TIMED OUT re" 2140 dev_err(&ftdi->udev->dev, "TIMED OUT re"
2141 "try limit reached\n"); 2141 "try limit reached\n");
2142 continue; 2142 continue;
2143 } 2143 }
2144 } else if (retval == 0) { 2144 } else if (retval == 0) {
2145 if (retry_on_empty-- > 0) { 2145 if (retry_on_empty-- > 0) {
2146 goto read; 2146 goto read;
2147 } else { 2147 } else {
2148 dev_err(&ftdi->udev->dev, "empty packet" 2148 dev_err(&ftdi->udev->dev, "empty packet"
2149 " retry limit reached\n"); 2149 " retry limit reached\n");
2150 continue; 2150 continue;
2151 } 2151 }
2152 } else { 2152 } else {
2153 err_count += 1; 2153 err_count += 1;
2154 dev_err(&ftdi->udev->dev, "error = %d\n", 2154 dev_err(&ftdi->udev->dev, "error = %d\n",
2155 retval); 2155 retval);
2156 if (read_stop-- > 0) { 2156 if (read_stop-- > 0) {
2157 goto read; 2157 goto read;
2158 } else { 2158 } else {
2159 dev_err(&ftdi->udev->dev, "retry limit " 2159 dev_err(&ftdi->udev->dev, "retry limit "
2160 "reached\n"); 2160 "reached\n");
2161 continue; 2161 continue;
2162 } 2162 }
2163 } 2163 }
2164 } 2164 }
2165 } 2165 }
2166 dev_err(&ftdi->udev->dev, "failed to synchronize\n"); 2166 dev_err(&ftdi->udev->dev, "failed to synchronize\n");
2167 return -EFAULT; 2167 return -EFAULT;
2168} 2168}
2169 2169
2170static int ftdi_elan_stuck_waiting(struct usb_ftdi *ftdi) 2170static int ftdi_elan_stuck_waiting(struct usb_ftdi *ftdi)
2171{ 2171{
2172 int retry_on_empty = 10; 2172 int retry_on_empty = 10;
2173 int retry_on_timeout = 5; 2173 int retry_on_timeout = 5;
2174 int retry_on_status = 50; 2174 int retry_on_status = 50;
2175 more:{ 2175more:{
2176 int packet_bytes = 0; 2176 int packet_bytes = 0;
2177 int retval = usb_bulk_msg(ftdi->udev, 2177 int retval = usb_bulk_msg(ftdi->udev,
2178 usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), 2178 usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
2179 ftdi->bulk_in_buffer, ftdi->bulk_in_size, 2179 ftdi->bulk_in_buffer, ftdi->bulk_in_size,
2180 &packet_bytes, 1000); 2180 &packet_bytes, 1000);
2181 if (packet_bytes > 2) { 2181 if (packet_bytes > 2) {
2182 char diag[30 *3 + 4]; 2182 char diag[30 *3 + 4];
2183 char *d = diag; 2183 char *d = diag;
2184 int m = (sizeof(diag) - 1) / 3; 2184 int m = (sizeof(diag) - 1) / 3;
2185 char *b = ftdi->bulk_in_buffer; 2185 char *b = ftdi->bulk_in_buffer;
2186 int bytes_read = 0; 2186 int bytes_read = 0;
2187 diag[0] = 0; 2187 diag[0] = 0;
2188 while (packet_bytes-- > 0) { 2188 while (packet_bytes-- > 0) {
2189 char c = *b++; 2189 char c = *b++;
2190 if (bytes_read < m) { 2190 if (bytes_read < m) {
2191 d += sprintf(d, " %02X", 2191 d += sprintf(d, " %02X",
2192 0x000000FF & c); 2192 0x000000FF & c);
2193 } else if (bytes_read > m) { 2193 } else if (bytes_read > m) {
2194 } else 2194 } else
2195 d += sprintf(d, " .."); 2195 d += sprintf(d, " ..");
2196 bytes_read += 1; 2196 bytes_read += 1;
2197 continue; 2197 continue;
2198 } 2198 }
2199 goto more; 2199 goto more;
2200 } else if (packet_bytes > 1) { 2200 } else if (packet_bytes > 1) {
2201 char s1 = ftdi->bulk_in_buffer[0]; 2201 char s1 = ftdi->bulk_in_buffer[0];
2202 char s2 = ftdi->bulk_in_buffer[1]; 2202 char s2 = ftdi->bulk_in_buffer[1];
2203 if (s1 == 0x31 && s2 == 0x60) { 2203 if (s1 == 0x31 && s2 == 0x60) {
2204 return 0; 2204 return 0;
2205 } else if (retry_on_status-- > 0) { 2205 } else if (retry_on_status-- > 0) {
2206 msleep(5); 2206 msleep(5);
2207 goto more; 2207 goto more;
2208 } else 2208 } else
2209 return -EFAULT; 2209 return -EFAULT;
2210 } else if (packet_bytes > 0) { 2210 } else if (packet_bytes > 0) {
2211 char b1 = ftdi->bulk_in_buffer[0]; 2211 char b1 = ftdi->bulk_in_buffer[0];
2212 dev_err(&ftdi->udev->dev, "only one byte flushed from F" 2212 dev_err(&ftdi->udev->dev, "only one byte flushed from F"
2213 "TDI = %02X\n", b1); 2213 "TDI = %02X\n", b1);
2214 if (retry_on_status-- > 0) { 2214 if (retry_on_status-- > 0) {
2215 msleep(5); 2215 msleep(5);
2216 goto more; 2216 goto more;
2217 } else { 2217 } else {
2218 dev_err(&ftdi->udev->dev, "STATUS ERROR retry l" 2218 dev_err(&ftdi->udev->dev, "STATUS ERROR retry l"
2219 "imit reached\n"); 2219 "imit reached\n");
2220 return -EFAULT; 2220 return -EFAULT;
2221 } 2221 }
2222 } else if (retval == -ETIMEDOUT) { 2222 } else if (retval == -ETIMEDOUT) {
2223 if (retry_on_timeout-- > 0) { 2223 if (retry_on_timeout-- > 0) {
2224 goto more; 2224 goto more;
2225 } else { 2225 } else {
2226 dev_err(&ftdi->udev->dev, "TIMED OUT retry limi" 2226 dev_err(&ftdi->udev->dev, "TIMED OUT retry limi"
2227 "t reached\n"); 2227 "t reached\n");
2228 return -ENOMEM; 2228 return -ENOMEM;
2229 } 2229 }
2230 } else if (retval == 0) { 2230 } else if (retval == 0) {
2231 if (retry_on_empty-- > 0) { 2231 if (retry_on_empty-- > 0) {
2232 goto more; 2232 goto more;
2233 } else { 2233 } else {
2234 dev_err(&ftdi->udev->dev, "empty packet retry l" 2234 dev_err(&ftdi->udev->dev, "empty packet retry l"
2235 "imit reached\n"); 2235 "imit reached\n");
2236 return -ENOMEM; 2236 return -ENOMEM;
2237 } 2237 }
2238 } else { 2238 } else {
2239 dev_err(&ftdi->udev->dev, "error = %d\n", retval); 2239 dev_err(&ftdi->udev->dev, "error = %d\n", retval);
2240 return -ENOMEM; 2240 return -ENOMEM;
2241 } 2241 }
2242 } 2242 }
2243 return -1; 2243 return -1;
2244} 2244}
2245 2245
2246static int ftdi_elan_checkingPCI(struct usb_ftdi *ftdi) 2246static int ftdi_elan_checkingPCI(struct usb_ftdi *ftdi)
2247{ 2247{
2248 int UxxxStatus = ftdi_elan_read_reg(ftdi, &ftdi->controlreg); 2248 int UxxxStatus = ftdi_elan_read_reg(ftdi, &ftdi->controlreg);
2249 if (UxxxStatus) 2249 if (UxxxStatus)
2250 return UxxxStatus; 2250 return UxxxStatus;
2251 if (ftdi->controlreg & 0x00400000) { 2251 if (ftdi->controlreg & 0x00400000) {
2252 if (ftdi->card_ejected) { 2252 if (ftdi->card_ejected) {
2253 } else { 2253 } else {
2254 ftdi->card_ejected = 1; 2254 ftdi->card_ejected = 1;
2255 dev_err(&ftdi->udev->dev, "CARD EJECTED - controlreg = " 2255 dev_err(&ftdi->udev->dev, "CARD EJECTED - controlreg = "
2256 "%08X\n", ftdi->controlreg); 2256 "%08X\n", ftdi->controlreg);
2257 } 2257 }
2258 return -ENODEV; 2258 return -ENODEV;
2259 } else { 2259 } else {
2260 u8 fn = ftdi->function - 1; 2260 u8 fn = ftdi->function - 1;
2261 int activePCIfn = fn << 8; 2261 int activePCIfn = fn << 8;
2262 u32 pcidata; 2262 u32 pcidata;
2263 u32 pciVID; 2263 u32 pciVID;
2264 u32 pciPID; 2264 u32 pciPID;
2265 int reg = 0; 2265 int reg = 0;
2266 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2266 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2267 &pcidata); 2267 &pcidata);
2268 if (UxxxStatus) 2268 if (UxxxStatus)
2269 return UxxxStatus; 2269 return UxxxStatus;
2270 pciVID = pcidata & 0xFFFF; 2270 pciVID = pcidata & 0xFFFF;
2271 pciPID = (pcidata >> 16) & 0xFFFF; 2271 pciPID = (pcidata >> 16) & 0xFFFF;
2272 if (pciVID == ftdi->platform_data.vendor && pciPID == 2272 if (pciVID == ftdi->platform_data.vendor && pciPID ==
2273 ftdi->platform_data.device) { 2273 ftdi->platform_data.device) {
2274 return 0; 2274 return 0;
2275 } else { 2275 } else {
2276 dev_err(&ftdi->udev->dev, "vendor=%04X pciVID=%04X devi" 2276 dev_err(&ftdi->udev->dev, "vendor=%04X pciVID=%04X devi"
2277 "ce=%04X pciPID=%04X\n", 2277 "ce=%04X pciPID=%04X\n",
2278 ftdi->platform_data.vendor, pciVID, 2278 ftdi->platform_data.vendor, pciVID,
2279 ftdi->platform_data.device, pciPID); 2279 ftdi->platform_data.device, pciPID);
2280 return -ENODEV; 2280 return -ENODEV;
2281 } 2281 }
2282 } 2282 }
2283} 2283}
2284 2284
2285 2285
2286#define ftdi_read_pcimem(ftdi, member, data) ftdi_elan_read_pcimem(ftdi, \ 2286#define ftdi_read_pcimem(ftdi, member, data) ftdi_elan_read_pcimem(ftdi, \
2287 offsetof(struct ohci_regs, member), 0, data); 2287 offsetof(struct ohci_regs, member), 0, data);
2288#define ftdi_write_pcimem(ftdi, member, data) ftdi_elan_write_pcimem(ftdi, \ 2288#define ftdi_write_pcimem(ftdi, member, data) ftdi_elan_write_pcimem(ftdi, \
2289 offsetof(struct ohci_regs, member), 0, data); 2289 offsetof(struct ohci_regs, member), 0, data);
2290 2290
2291#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR 2291#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
2292#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \ 2292#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
2293 OHCI_INTR_WDH) 2293 OHCI_INTR_WDH)
2294static int ftdi_elan_check_controller(struct usb_ftdi *ftdi, int quirk) 2294static int ftdi_elan_check_controller(struct usb_ftdi *ftdi, int quirk)
2295{ 2295{
2296 int devices = 0; 2296 int devices = 0;
2297 int retval; 2297 int retval;
2298 u32 hc_control; 2298 u32 hc_control;
2299 int num_ports; 2299 int num_ports;
2300 u32 control; 2300 u32 control;
2301 u32 rh_a = -1; 2301 u32 rh_a = -1;
2302 u32 status; 2302 u32 status;
2303 u32 fminterval; 2303 u32 fminterval;
2304 u32 hc_fminterval; 2304 u32 hc_fminterval;
2305 u32 periodicstart; 2305 u32 periodicstart;
2306 u32 cmdstatus; 2306 u32 cmdstatus;
2307 u32 roothub_a; 2307 u32 roothub_a;
2308 int mask = OHCI_INTR_INIT; 2308 int mask = OHCI_INTR_INIT;
2309 int sleep_time = 0; 2309 int sleep_time = 0;
2310 int reset_timeout = 30; /* ... allow extra time */ 2310 int reset_timeout = 30; /* ... allow extra time */
2311 int temp; 2311 int temp;
2312 retval = ftdi_write_pcimem(ftdi, intrdisable, OHCI_INTR_MIE); 2312 retval = ftdi_write_pcimem(ftdi, intrdisable, OHCI_INTR_MIE);
2313 if (retval) 2313 if (retval)
2314 return retval; 2314 return retval;
2315 retval = ftdi_read_pcimem(ftdi, control, &control); 2315 retval = ftdi_read_pcimem(ftdi, control, &control);
2316 if (retval) 2316 if (retval)
2317 return retval; 2317 return retval;
2318 retval = ftdi_read_pcimem(ftdi, roothub.a, &rh_a); 2318 retval = ftdi_read_pcimem(ftdi, roothub.a, &rh_a);
2319 if (retval) 2319 if (retval)
2320 return retval; 2320 return retval;
2321 num_ports = rh_a & RH_A_NDP; 2321 num_ports = rh_a & RH_A_NDP;
2322 retval = ftdi_read_pcimem(ftdi, fminterval, &hc_fminterval); 2322 retval = ftdi_read_pcimem(ftdi, fminterval, &hc_fminterval);
2323 if (retval) 2323 if (retval)
2324 return retval; 2324 return retval;
2325 hc_fminterval &= 0x3fff; 2325 hc_fminterval &= 0x3fff;
2326 if (hc_fminterval != FI) { 2326 if (hc_fminterval != FI) {
2327 } 2327 }
2328 hc_fminterval |= FSMP(hc_fminterval) << 16; 2328 hc_fminterval |= FSMP(hc_fminterval) << 16;
2329 retval = ftdi_read_pcimem(ftdi, control, &hc_control); 2329 retval = ftdi_read_pcimem(ftdi, control, &hc_control);
2330 if (retval) 2330 if (retval)
2331 return retval; 2331 return retval;
2332 switch (hc_control & OHCI_CTRL_HCFS) { 2332 switch (hc_control & OHCI_CTRL_HCFS) {
2333 case OHCI_USB_OPER: 2333 case OHCI_USB_OPER:
2334 sleep_time = 0; 2334 sleep_time = 0;
2335 break; 2335 break;
2336 case OHCI_USB_SUSPEND: 2336 case OHCI_USB_SUSPEND:
2337 case OHCI_USB_RESUME: 2337 case OHCI_USB_RESUME:
2338 hc_control &= OHCI_CTRL_RWC; 2338 hc_control &= OHCI_CTRL_RWC;
2339 hc_control |= OHCI_USB_RESUME; 2339 hc_control |= OHCI_USB_RESUME;
2340 sleep_time = 10; 2340 sleep_time = 10;
2341 break; 2341 break;
2342 default: 2342 default:
2343 hc_control &= OHCI_CTRL_RWC; 2343 hc_control &= OHCI_CTRL_RWC;
2344 hc_control |= OHCI_USB_RESET; 2344 hc_control |= OHCI_USB_RESET;
2345 sleep_time = 50; 2345 sleep_time = 50;
2346 break; 2346 break;
2347 } 2347 }
2348 retval = ftdi_write_pcimem(ftdi, control, hc_control); 2348 retval = ftdi_write_pcimem(ftdi, control, hc_control);
2349 if (retval) 2349 if (retval)
2350 return retval; 2350 return retval;
2351 retval = ftdi_read_pcimem(ftdi, control, &control); 2351 retval = ftdi_read_pcimem(ftdi, control, &control);
2352 if (retval) 2352 if (retval)
2353 return retval; 2353 return retval;
2354 msleep(sleep_time); 2354 msleep(sleep_time);
2355 retval = ftdi_read_pcimem(ftdi, roothub.a, &roothub_a); 2355 retval = ftdi_read_pcimem(ftdi, roothub.a, &roothub_a);
2356 if (retval) 2356 if (retval)
2357 return retval; 2357 return retval;
2358 if (!(roothub_a & RH_A_NPS)) { /* power down each port */ 2358 if (!(roothub_a & RH_A_NPS)) { /* power down each port */
2359 for (temp = 0; temp < num_ports; temp++) { 2359 for (temp = 0; temp < num_ports; temp++) {
2360 retval = ftdi_write_pcimem(ftdi, 2360 retval = ftdi_write_pcimem(ftdi,
2361 roothub.portstatus[temp], RH_PS_LSDA); 2361 roothub.portstatus[temp], RH_PS_LSDA);
2362 if (retval) 2362 if (retval)
2363 return retval; 2363 return retval;
2364 } 2364 }
2365 } 2365 }
2366 retval = ftdi_read_pcimem(ftdi, control, &control); 2366 retval = ftdi_read_pcimem(ftdi, control, &control);
2367 if (retval) 2367 if (retval)
2368 return retval; 2368 return retval;
2369 retry:retval = ftdi_read_pcimem(ftdi, cmdstatus, &status); 2369retry:retval = ftdi_read_pcimem(ftdi, cmdstatus, &status);
2370 if (retval) 2370 if (retval)
2371 return retval; 2371 return retval;
2372 retval = ftdi_write_pcimem(ftdi, cmdstatus, OHCI_HCR); 2372 retval = ftdi_write_pcimem(ftdi, cmdstatus, OHCI_HCR);
2373 if (retval) 2373 if (retval)
2374 return retval; 2374 return retval;
2375 extra:{ 2375extra:{
2376 retval = ftdi_read_pcimem(ftdi, cmdstatus, &status); 2376 retval = ftdi_read_pcimem(ftdi, cmdstatus, &status);
2377 if (retval) 2377 if (retval)
2378 return retval; 2378 return retval;
2379 if (0 != (status & OHCI_HCR)) { 2379 if (0 != (status & OHCI_HCR)) {
2380 if (--reset_timeout == 0) { 2380 if (--reset_timeout == 0) {
2381 dev_err(&ftdi->udev->dev, "USB HC reset timed o" 2381 dev_err(&ftdi->udev->dev, "USB HC reset timed o"
2382 "ut!\n"); 2382 "ut!\n");
2383 return -ENODEV; 2383 return -ENODEV;
2384 } else { 2384 } else {
2385 msleep(5); 2385 msleep(5);
2386 goto extra; 2386 goto extra;
2387 } 2387 }
2388 } 2388 }
2389 } 2389 }
2390 if (quirk & OHCI_QUIRK_INITRESET) { 2390 if (quirk & OHCI_QUIRK_INITRESET) {
2391 retval = ftdi_write_pcimem(ftdi, control, hc_control); 2391 retval = ftdi_write_pcimem(ftdi, control, hc_control);
2392 if (retval) 2392 if (retval)
2393 return retval; 2393 return retval;
2394 retval = ftdi_read_pcimem(ftdi, control, &control); 2394 retval = ftdi_read_pcimem(ftdi, control, &control);
2395 if (retval) 2395 if (retval)
2396 return retval; 2396 return retval;
2397 } 2397 }
2398 retval = ftdi_write_pcimem(ftdi, ed_controlhead, 0x00000000); 2398 retval = ftdi_write_pcimem(ftdi, ed_controlhead, 0x00000000);
2399 if (retval) 2399 if (retval)
2400 return retval; 2400 return retval;
2401 retval = ftdi_write_pcimem(ftdi, ed_bulkhead, 0x11000000); 2401 retval = ftdi_write_pcimem(ftdi, ed_bulkhead, 0x11000000);
2402 if (retval) 2402 if (retval)
2403 return retval; 2403 return retval;
2404 retval = ftdi_write_pcimem(ftdi, hcca, 0x00000000); 2404 retval = ftdi_write_pcimem(ftdi, hcca, 0x00000000);
2405 if (retval) 2405 if (retval)
2406 return retval; 2406 return retval;
2407 retval = ftdi_read_pcimem(ftdi, fminterval, &fminterval); 2407 retval = ftdi_read_pcimem(ftdi, fminterval, &fminterval);
2408 if (retval) 2408 if (retval)
2409 return retval; 2409 return retval;
2410 retval = ftdi_write_pcimem(ftdi, fminterval, 2410 retval = ftdi_write_pcimem(ftdi, fminterval,
2411 ((fminterval & FIT) ^ FIT) | hc_fminterval); 2411 ((fminterval & FIT) ^ FIT) | hc_fminterval);
2412 if (retval) 2412 if (retval)
2413 return retval; 2413 return retval;
2414 retval = ftdi_write_pcimem(ftdi, periodicstart, 2414 retval = ftdi_write_pcimem(ftdi, periodicstart,
2415 ((9 *hc_fminterval) / 10) & 0x3fff); 2415 ((9 *hc_fminterval) / 10) & 0x3fff);
2416 if (retval) 2416 if (retval)
2417 return retval; 2417 return retval;
2418 retval = ftdi_read_pcimem(ftdi, fminterval, &fminterval); 2418 retval = ftdi_read_pcimem(ftdi, fminterval, &fminterval);
2419 if (retval) 2419 if (retval)
2420 return retval; 2420 return retval;
2421 retval = ftdi_read_pcimem(ftdi, periodicstart, &periodicstart); 2421 retval = ftdi_read_pcimem(ftdi, periodicstart, &periodicstart);
2422 if (retval) 2422 if (retval)
2423 return retval; 2423 return retval;
2424 if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) { 2424 if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
2425 if (!(quirk & OHCI_QUIRK_INITRESET)) { 2425 if (!(quirk & OHCI_QUIRK_INITRESET)) {
2426 quirk |= OHCI_QUIRK_INITRESET; 2426 quirk |= OHCI_QUIRK_INITRESET;
2427 goto retry; 2427 goto retry;
2428 } else 2428 } else
2429 dev_err(&ftdi->udev->dev, "init err(%08x %04x)\n", 2429 dev_err(&ftdi->udev->dev, "init err(%08x %04x)\n",
2430 fminterval, periodicstart); 2430 fminterval, periodicstart);
2431 } /* start controller operations */ 2431 } /* start controller operations */
2432 hc_control &= OHCI_CTRL_RWC; 2432 hc_control &= OHCI_CTRL_RWC;
2433 hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER; 2433 hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
2434 retval = ftdi_write_pcimem(ftdi, control, hc_control); 2434 retval = ftdi_write_pcimem(ftdi, control, hc_control);
2435 if (retval) 2435 if (retval)
2436 return retval; 2436 return retval;
2437 retval = ftdi_write_pcimem(ftdi, cmdstatus, OHCI_BLF); 2437 retval = ftdi_write_pcimem(ftdi, cmdstatus, OHCI_BLF);
2438 if (retval) 2438 if (retval)
2439 return retval; 2439 return retval;
2440 retval = ftdi_read_pcimem(ftdi, cmdstatus, &cmdstatus); 2440 retval = ftdi_read_pcimem(ftdi, cmdstatus, &cmdstatus);
2441 if (retval) 2441 if (retval)
2442 return retval; 2442 return retval;
2443 retval = ftdi_read_pcimem(ftdi, control, &control); 2443 retval = ftdi_read_pcimem(ftdi, control, &control);
2444 if (retval) 2444 if (retval)
2445 return retval; 2445 return retval;
2446 retval = ftdi_write_pcimem(ftdi, roothub.status, RH_HS_DRWE); 2446 retval = ftdi_write_pcimem(ftdi, roothub.status, RH_HS_DRWE);
2447 if (retval) 2447 if (retval)
2448 return retval; 2448 return retval;
2449 retval = ftdi_write_pcimem(ftdi, intrstatus, mask); 2449 retval = ftdi_write_pcimem(ftdi, intrstatus, mask);
2450 if (retval) 2450 if (retval)
2451 return retval; 2451 return retval;
2452 retval = ftdi_write_pcimem(ftdi, intrdisable, 2452 retval = ftdi_write_pcimem(ftdi, intrdisable,
2453 OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO | 2453 OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
2454 OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH | 2454 OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
2455 OHCI_INTR_SO); 2455 OHCI_INTR_SO);
2456 if (retval) 2456 if (retval)
2457 return retval; /* handle root hub init quirks ... */ 2457 return retval; /* handle root hub init quirks ... */
2458 retval = ftdi_read_pcimem(ftdi, roothub.a, &roothub_a); 2458 retval = ftdi_read_pcimem(ftdi, roothub.a, &roothub_a);
2459 if (retval) 2459 if (retval)
2460 return retval; 2460 return retval;
2461 roothub_a &= ~(RH_A_PSM | RH_A_OCPM); 2461 roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
2462 if (quirk & OHCI_QUIRK_SUPERIO) { 2462 if (quirk & OHCI_QUIRK_SUPERIO) {
2463 roothub_a |= RH_A_NOCP; 2463 roothub_a |= RH_A_NOCP;
2464 roothub_a &= ~(RH_A_POTPGT | RH_A_NPS); 2464 roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
2465 retval = ftdi_write_pcimem(ftdi, roothub.a, roothub_a); 2465 retval = ftdi_write_pcimem(ftdi, roothub.a, roothub_a);
2466 if (retval) 2466 if (retval)
2467 return retval; 2467 return retval;
2468 } else if ((quirk & OHCI_QUIRK_AMD756) || distrust_firmware) { 2468 } else if ((quirk & OHCI_QUIRK_AMD756) || distrust_firmware) {
2469 roothub_a |= RH_A_NPS; 2469 roothub_a |= RH_A_NPS;
2470 retval = ftdi_write_pcimem(ftdi, roothub.a, roothub_a); 2470 retval = ftdi_write_pcimem(ftdi, roothub.a, roothub_a);
2471 if (retval) 2471 if (retval)
2472 return retval; 2472 return retval;
2473 } 2473 }
2474 retval = ftdi_write_pcimem(ftdi, roothub.status, RH_HS_LPSC); 2474 retval = ftdi_write_pcimem(ftdi, roothub.status, RH_HS_LPSC);
2475 if (retval) 2475 if (retval)
2476 return retval; 2476 return retval;
2477 retval = ftdi_write_pcimem(ftdi, roothub.b, 2477 retval = ftdi_write_pcimem(ftdi, roothub.b,
2478 (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM); 2478 (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
2479 if (retval) 2479 if (retval)
2480 return retval; 2480 return retval;
2481 retval = ftdi_read_pcimem(ftdi, control, &control); 2481 retval = ftdi_read_pcimem(ftdi, control, &control);
2482 if (retval) 2482 if (retval)
2483 return retval; 2483 return retval;
2484 mdelay((roothub_a >> 23) & 0x1fe); 2484 mdelay((roothub_a >> 23) & 0x1fe);
2485 for (temp = 0; temp < num_ports; temp++) { 2485 for (temp = 0; temp < num_ports; temp++) {
2486 u32 portstatus; 2486 u32 portstatus;
2487 retval = ftdi_read_pcimem(ftdi, roothub.portstatus[temp], 2487 retval = ftdi_read_pcimem(ftdi, roothub.portstatus[temp],
2488 &portstatus); 2488 &portstatus);
2489 if (retval) 2489 if (retval)
2490 return retval; 2490 return retval;
2491 if (1 & portstatus) 2491 if (1 & portstatus)
2492 devices += 1; 2492 devices += 1;
2493 } 2493 }
2494 return devices; 2494 return devices;
2495} 2495}
2496 2496
2497static int ftdi_elan_setup_controller(struct usb_ftdi *ftdi, int fn) 2497static int ftdi_elan_setup_controller(struct usb_ftdi *ftdi, int fn)
2498{ 2498{
2499 u32 latence_timer; 2499 u32 latence_timer;
2500 int UxxxStatus; 2500 int UxxxStatus;
2501 u32 pcidata; 2501 u32 pcidata;
2502 int reg = 0; 2502 int reg = 0;
2503 int activePCIfn = fn << 8; 2503 int activePCIfn = fn << 8;
2504 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x2800); 2504 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x2800);
2505 if (UxxxStatus) 2505 if (UxxxStatus)
2506 return UxxxStatus; 2506 return UxxxStatus;
2507 reg = 16; 2507 reg = 16;
2508 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0, 2508 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
2509 0xFFFFFFFF); 2509 0xFFFFFFFF);
2510 if (UxxxStatus) 2510 if (UxxxStatus)
2511 return UxxxStatus; 2511 return UxxxStatus;
2512 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2512 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2513 &pcidata); 2513 &pcidata);
2514 if (UxxxStatus) 2514 if (UxxxStatus)
2515 return UxxxStatus; 2515 return UxxxStatus;
2516 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0, 2516 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
2517 0xF0000000); 2517 0xF0000000);
2518 if (UxxxStatus) 2518 if (UxxxStatus)
2519 return UxxxStatus; 2519 return UxxxStatus;
2520 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2520 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2521 &pcidata); 2521 &pcidata);
2522 if (UxxxStatus) 2522 if (UxxxStatus)
2523 return UxxxStatus; 2523 return UxxxStatus;
2524 reg = 12; 2524 reg = 12;
2525 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2525 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2526 &latence_timer); 2526 &latence_timer);
2527 if (UxxxStatus) 2527 if (UxxxStatus)
2528 return UxxxStatus; 2528 return UxxxStatus;
2529 latence_timer &= 0xFFFF00FF; 2529 latence_timer &= 0xFFFF00FF;
2530 latence_timer |= 0x00001600; 2530 latence_timer |= 0x00001600;
2531 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00, 2531 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
2532 latence_timer); 2532 latence_timer);
2533 if (UxxxStatus) 2533 if (UxxxStatus)
2534 return UxxxStatus; 2534 return UxxxStatus;
2535 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2535 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2536 &pcidata); 2536 &pcidata);
2537 if (UxxxStatus) 2537 if (UxxxStatus)
2538 return UxxxStatus; 2538 return UxxxStatus;
2539 reg = 4; 2539 reg = 4;
2540 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00, 2540 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
2541 0x06); 2541 0x06);
2542 if (UxxxStatus) 2542 if (UxxxStatus)
2543 return UxxxStatus; 2543 return UxxxStatus;
2544 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2544 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2545 &pcidata); 2545 &pcidata);
2546 if (UxxxStatus) 2546 if (UxxxStatus)
2547 return UxxxStatus; 2547 return UxxxStatus;
2548 for (reg = 0; reg <= 0x54; reg += 4) { 2548 for (reg = 0; reg <= 0x54; reg += 4) {
2549 UxxxStatus = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); 2549 UxxxStatus = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata);
2550 if (UxxxStatus) 2550 if (UxxxStatus)
2551 return UxxxStatus; 2551 return UxxxStatus;
2552 } 2552 }
2553 return 0; 2553 return 0;
2554} 2554}
2555 2555
2556static int ftdi_elan_close_controller(struct usb_ftdi *ftdi, int fn) 2556static int ftdi_elan_close_controller(struct usb_ftdi *ftdi, int fn)
2557{ 2557{
2558 u32 latence_timer; 2558 u32 latence_timer;
2559 int UxxxStatus; 2559 int UxxxStatus;
2560 u32 pcidata; 2560 u32 pcidata;
2561 int reg = 0; 2561 int reg = 0;
2562 int activePCIfn = fn << 8; 2562 int activePCIfn = fn << 8;
2563 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x2800); 2563 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x2800);
2564 if (UxxxStatus) 2564 if (UxxxStatus)
2565 return UxxxStatus; 2565 return UxxxStatus;
2566 reg = 16; 2566 reg = 16;
2567 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0, 2567 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
2568 0xFFFFFFFF); 2568 0xFFFFFFFF);
2569 if (UxxxStatus) 2569 if (UxxxStatus)
2570 return UxxxStatus; 2570 return UxxxStatus;
2571 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2571 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2572 &pcidata); 2572 &pcidata);
2573 if (UxxxStatus) 2573 if (UxxxStatus)
2574 return UxxxStatus; 2574 return UxxxStatus;
2575 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0, 2575 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
2576 0x00000000); 2576 0x00000000);
2577 if (UxxxStatus) 2577 if (UxxxStatus)
2578 return UxxxStatus; 2578 return UxxxStatus;
2579 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2579 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2580 &pcidata); 2580 &pcidata);
2581 if (UxxxStatus) 2581 if (UxxxStatus)
2582 return UxxxStatus; 2582 return UxxxStatus;
2583 reg = 12; 2583 reg = 12;
2584 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2584 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2585 &latence_timer); 2585 &latence_timer);
2586 if (UxxxStatus) 2586 if (UxxxStatus)
2587 return UxxxStatus; 2587 return UxxxStatus;
2588 latence_timer &= 0xFFFF00FF; 2588 latence_timer &= 0xFFFF00FF;
2589 latence_timer |= 0x00001600; 2589 latence_timer |= 0x00001600;
2590 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00, 2590 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
2591 latence_timer); 2591 latence_timer);
2592 if (UxxxStatus) 2592 if (UxxxStatus)
2593 return UxxxStatus; 2593 return UxxxStatus;
2594 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2594 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2595 &pcidata); 2595 &pcidata);
2596 if (UxxxStatus) 2596 if (UxxxStatus)
2597 return UxxxStatus; 2597 return UxxxStatus;
2598 reg = 4; 2598 reg = 4;
2599 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00, 2599 UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
2600 0x00); 2600 0x00);
2601 if (UxxxStatus) 2601 if (UxxxStatus)
2602 return UxxxStatus; 2602 return UxxxStatus;
2603 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2603 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2604 &pcidata); 2604 &pcidata);
2605 if (UxxxStatus) 2605 if (UxxxStatus)
2606 return UxxxStatus; 2606 return UxxxStatus;
2607 return 0; 2607 return 0;
2608} 2608}
2609 2609
2610static int ftdi_elan_found_controller(struct usb_ftdi *ftdi, int fn, int quirk) 2610static int ftdi_elan_found_controller(struct usb_ftdi *ftdi, int fn, int quirk)
2611{ 2611{
2612 int result; 2612 int result;
2613 int UxxxStatus; 2613 int UxxxStatus;
2614 UxxxStatus = ftdi_elan_setup_controller(ftdi, fn); 2614 UxxxStatus = ftdi_elan_setup_controller(ftdi, fn);
2615 if (UxxxStatus) 2615 if (UxxxStatus)
2616 return UxxxStatus; 2616 return UxxxStatus;
2617 result = ftdi_elan_check_controller(ftdi, quirk); 2617 result = ftdi_elan_check_controller(ftdi, quirk);
2618 UxxxStatus = ftdi_elan_close_controller(ftdi, fn); 2618 UxxxStatus = ftdi_elan_close_controller(ftdi, fn);
2619 if (UxxxStatus) 2619 if (UxxxStatus)
2620 return UxxxStatus; 2620 return UxxxStatus;
2621 return result; 2621 return result;
2622} 2622}
2623 2623
2624static int ftdi_elan_enumeratePCI(struct usb_ftdi *ftdi) 2624static int ftdi_elan_enumeratePCI(struct usb_ftdi *ftdi)
2625{ 2625{
2626 u32 controlreg; 2626 u32 controlreg;
2627 u8 sensebits; 2627 u8 sensebits;
2628 int UxxxStatus; 2628 int UxxxStatus;
2629 UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg); 2629 UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
2630 if (UxxxStatus) 2630 if (UxxxStatus)
2631 return UxxxStatus; 2631 return UxxxStatus;
2632 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000000L); 2632 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000000L);
2633 if (UxxxStatus) 2633 if (UxxxStatus)
2634 return UxxxStatus; 2634 return UxxxStatus;
2635 msleep(750); 2635 msleep(750);
2636 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000200L | 0x100); 2636 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000200L | 0x100);
2637 if (UxxxStatus) 2637 if (UxxxStatus)
2638 return UxxxStatus; 2638 return UxxxStatus;
2639 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000200L | 0x500); 2639 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000200L | 0x500);
2640 if (UxxxStatus) 2640 if (UxxxStatus)
2641 return UxxxStatus; 2641 return UxxxStatus;
2642 UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg); 2642 UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
2643 if (UxxxStatus) 2643 if (UxxxStatus)
2644 return UxxxStatus; 2644 return UxxxStatus;
2645 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020CL | 0x000); 2645 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020CL | 0x000);
2646 if (UxxxStatus) 2646 if (UxxxStatus)
2647 return UxxxStatus; 2647 return UxxxStatus;
2648 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020DL | 0x000); 2648 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020DL | 0x000);
2649 if (UxxxStatus) 2649 if (UxxxStatus)
2650 return UxxxStatus; 2650 return UxxxStatus;
2651 msleep(250); 2651 msleep(250);
2652 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020FL | 0x000); 2652 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020FL | 0x000);
2653 if (UxxxStatus) 2653 if (UxxxStatus)
2654 return UxxxStatus; 2654 return UxxxStatus;
2655 UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg); 2655 UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
2656 if (UxxxStatus) 2656 if (UxxxStatus)
2657 return UxxxStatus; 2657 return UxxxStatus;
2658 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x800); 2658 UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x800);
2659 if (UxxxStatus) 2659 if (UxxxStatus)
2660 return UxxxStatus; 2660 return UxxxStatus;
2661 UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg); 2661 UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
2662 if (UxxxStatus) 2662 if (UxxxStatus)
2663 return UxxxStatus; 2663 return UxxxStatus;
2664 UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg); 2664 UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
2665 if (UxxxStatus) 2665 if (UxxxStatus)
2666 return UxxxStatus; 2666 return UxxxStatus;
2667 msleep(1000); 2667 msleep(1000);
2668 sensebits = (controlreg >> 16) & 0x000F; 2668 sensebits = (controlreg >> 16) & 0x000F;
2669 if (0x0D == sensebits) 2669 if (0x0D == sensebits)
2670 return 0; 2670 return 0;
2671 else 2671 else
2672 return - ENXIO; 2672 return - ENXIO;
2673} 2673}
2674 2674
2675static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi) 2675static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi)
2676{ 2676{
2677 int UxxxStatus; 2677 int UxxxStatus;
2678 u32 pcidata; 2678 u32 pcidata;
2679 int reg = 0; 2679 int reg = 0;
2680 u8 fn; 2680 u8 fn;
2681 int activePCIfn = 0; 2681 int activePCIfn = 0;
2682 int max_devices = 0; 2682 int max_devices = 0;
2683 int controllers = 0; 2683 int controllers = 0;
2684 int unrecognized = 0; 2684 int unrecognized = 0;
2685 ftdi->function = 0; 2685 ftdi->function = 0;
2686 for (fn = 0; (fn < 4); fn++) { 2686 for (fn = 0; (fn < 4); fn++) {
2687 u32 pciVID = 0; 2687 u32 pciVID = 0;
2688 u32 pciPID = 0; 2688 u32 pciPID = 0;
2689 int devices = 0; 2689 int devices = 0;
2690 activePCIfn = fn << 8; 2690 activePCIfn = fn << 8;
2691 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, 2691 UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
2692 &pcidata); 2692 &pcidata);
2693 if (UxxxStatus) 2693 if (UxxxStatus)
2694 return UxxxStatus; 2694 return UxxxStatus;
2695 pciVID = pcidata & 0xFFFF; 2695 pciVID = pcidata & 0xFFFF;
2696 pciPID = (pcidata >> 16) & 0xFFFF; 2696 pciPID = (pcidata >> 16) & 0xFFFF;
2697 if ((pciVID == PCI_VENDOR_ID_OPTI) && (pciPID == 0xc861)) { 2697 if ((pciVID == PCI_VENDOR_ID_OPTI) && (pciPID == 0xc861)) {
2698 devices = ftdi_elan_found_controller(ftdi, fn, 0); 2698 devices = ftdi_elan_found_controller(ftdi, fn, 0);
2699 controllers += 1; 2699 controllers += 1;
2700 } else if ((pciVID == PCI_VENDOR_ID_NEC) && (pciPID == 0x0035)) 2700 } else if ((pciVID == PCI_VENDOR_ID_NEC) && (pciPID == 0x0035))
2701 { 2701 {
2702 devices = ftdi_elan_found_controller(ftdi, fn, 0); 2702 devices = ftdi_elan_found_controller(ftdi, fn, 0);
2703 controllers += 1; 2703 controllers += 1;
2704 } else if ((pciVID == PCI_VENDOR_ID_AL) && (pciPID == 0x5237)) { 2704 } else if ((pciVID == PCI_VENDOR_ID_AL) && (pciPID == 0x5237)) {
2705 devices = ftdi_elan_found_controller(ftdi, fn, 0); 2705 devices = ftdi_elan_found_controller(ftdi, fn, 0);
2706 controllers += 1; 2706 controllers += 1;
2707 } else if ((pciVID == PCI_VENDOR_ID_ATT) && (pciPID == 0x5802)) 2707 } else if ((pciVID == PCI_VENDOR_ID_ATT) && (pciPID == 0x5802))
2708 { 2708 {
2709 devices = ftdi_elan_found_controller(ftdi, fn, 0); 2709 devices = ftdi_elan_found_controller(ftdi, fn, 0);
2710 controllers += 1; 2710 controllers += 1;
2711 } else if (pciVID == PCI_VENDOR_ID_AMD && pciPID == 0x740c) { 2711 } else if (pciVID == PCI_VENDOR_ID_AMD && pciPID == 0x740c) {
2712 devices = ftdi_elan_found_controller(ftdi, fn, 2712 devices = ftdi_elan_found_controller(ftdi, fn,
2713 OHCI_QUIRK_AMD756); 2713 OHCI_QUIRK_AMD756);
2714 controllers += 1; 2714 controllers += 1;
2715 } else if (pciVID == PCI_VENDOR_ID_COMPAQ && pciPID == 0xa0f8) { 2715 } else if (pciVID == PCI_VENDOR_ID_COMPAQ && pciPID == 0xa0f8) {
2716 devices = ftdi_elan_found_controller(ftdi, fn, 2716 devices = ftdi_elan_found_controller(ftdi, fn,
2717 OHCI_QUIRK_ZFMICRO); 2717 OHCI_QUIRK_ZFMICRO);
2718 controllers += 1; 2718 controllers += 1;
2719 } else if (0 == pcidata) { 2719 } else if (0 == pcidata) {
2720 } else 2720 } else
2721 unrecognized += 1; 2721 unrecognized += 1;
2722 if (devices > max_devices) { 2722 if (devices > max_devices) {
2723 max_devices = devices; 2723 max_devices = devices;
2724 ftdi->function = fn + 1; 2724 ftdi->function = fn + 1;
2725 ftdi->platform_data.vendor = pciVID; 2725 ftdi->platform_data.vendor = pciVID;
2726 ftdi->platform_data.device = pciPID; 2726 ftdi->platform_data.device = pciPID;
2727 } 2727 }
2728 } 2728 }
2729 if (ftdi->function > 0) { 2729 if (ftdi->function > 0) {
2730 UxxxStatus = ftdi_elan_setup_controller(ftdi, 2730 UxxxStatus = ftdi_elan_setup_controller(ftdi,
2731 ftdi->function - 1); 2731 ftdi->function - 1);
2732 if (UxxxStatus) 2732 if (UxxxStatus)
2733 return UxxxStatus; 2733 return UxxxStatus;
2734 return 0; 2734 return 0;
2735 } else if (controllers > 0) { 2735 } else if (controllers > 0) {
2736 return -ENXIO; 2736 return -ENXIO;
2737 } else if (unrecognized > 0) { 2737 } else if (unrecognized > 0) {
2738 return -ENXIO; 2738 return -ENXIO;
2739 } else { 2739 } else {
2740 ftdi->enumerated = 0; 2740 ftdi->enumerated = 0;
2741 return -ENXIO; 2741 return -ENXIO;
2742 } 2742 }
2743} 2743}
2744 2744
2745 2745
2746/* 2746/*
2747* we use only the first bulk-in and bulk-out endpoints 2747 * we use only the first bulk-in and bulk-out endpoints
2748*/ 2748 */
2749static int ftdi_elan_probe(struct usb_interface *interface, 2749static int ftdi_elan_probe(struct usb_interface *interface,
2750 const struct usb_device_id *id) 2750 const struct usb_device_id *id)
2751{ 2751{
2752 struct usb_host_interface *iface_desc; 2752 struct usb_host_interface *iface_desc;
2753 struct usb_endpoint_descriptor *endpoint; 2753 struct usb_endpoint_descriptor *endpoint;
2754 size_t buffer_size; 2754 size_t buffer_size;
2755 int i; 2755 int i;
2756 int retval = -ENOMEM; 2756 int retval = -ENOMEM;
2757 struct usb_ftdi *ftdi; 2757 struct usb_ftdi *ftdi;
2758 2758
2759 ftdi = kzalloc(sizeof(struct usb_ftdi), GFP_KERNEL); 2759 ftdi = kzalloc(sizeof(struct usb_ftdi), GFP_KERNEL);
2760 if (!ftdi) { 2760 if (!ftdi) {
2761 printk(KERN_ERR "Out of memory\n"); 2761 printk(KERN_ERR "Out of memory\n");
2762 return -ENOMEM; 2762 return -ENOMEM;
2763 } 2763 }
2764 2764
2765 mutex_lock(&ftdi_module_lock); 2765 mutex_lock(&ftdi_module_lock);
2766 list_add_tail(&ftdi->ftdi_list, &ftdi_static_list); 2766 list_add_tail(&ftdi->ftdi_list, &ftdi_static_list);
2767 ftdi->sequence_num = ++ftdi_instances; 2767 ftdi->sequence_num = ++ftdi_instances;
2768 mutex_unlock(&ftdi_module_lock); 2768 mutex_unlock(&ftdi_module_lock);
2769 ftdi_elan_init_kref(ftdi); 2769 ftdi_elan_init_kref(ftdi);
2770 sema_init(&ftdi->sw_lock, 1); 2770 sema_init(&ftdi->sw_lock, 1);
2771 ftdi->udev = usb_get_dev(interface_to_usbdev(interface)); 2771 ftdi->udev = usb_get_dev(interface_to_usbdev(interface));
2772 ftdi->interface = interface; 2772 ftdi->interface = interface;
2773 mutex_init(&ftdi->u132_lock); 2773 mutex_init(&ftdi->u132_lock);
2774 ftdi->expected = 4; 2774 ftdi->expected = 4;
2775 iface_desc = interface->cur_altsetting; 2775 iface_desc = interface->cur_altsetting;
2776 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { 2776 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
2777 endpoint = &iface_desc->endpoint[i].desc; 2777 endpoint = &iface_desc->endpoint[i].desc;
2778 if (!ftdi->bulk_in_endpointAddr && 2778 if (!ftdi->bulk_in_endpointAddr &&
2779 usb_endpoint_is_bulk_in(endpoint)) { 2779 usb_endpoint_is_bulk_in(endpoint)) {
2780 buffer_size = usb_endpoint_maxp(endpoint); 2780 buffer_size = usb_endpoint_maxp(endpoint);
2781 ftdi->bulk_in_size = buffer_size; 2781 ftdi->bulk_in_size = buffer_size;
2782 ftdi->bulk_in_endpointAddr = endpoint->bEndpointAddress; 2782 ftdi->bulk_in_endpointAddr = endpoint->bEndpointAddress;
2783 ftdi->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL); 2783 ftdi->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
2784 if (!ftdi->bulk_in_buffer) { 2784 if (!ftdi->bulk_in_buffer) {
2785 dev_err(&ftdi->udev->dev, "Could not allocate b" 2785 dev_err(&ftdi->udev->dev, "Could not allocate b"
2786 "ulk_in_buffer\n"); 2786 "ulk_in_buffer\n");
2787 retval = -ENOMEM; 2787 retval = -ENOMEM;
2788 goto error; 2788 goto error;
2789 } 2789 }
2790 } 2790 }
2791 if (!ftdi->bulk_out_endpointAddr && 2791 if (!ftdi->bulk_out_endpointAddr &&
2792 usb_endpoint_is_bulk_out(endpoint)) { 2792 usb_endpoint_is_bulk_out(endpoint)) {
2793 ftdi->bulk_out_endpointAddr = 2793 ftdi->bulk_out_endpointAddr =
2794 endpoint->bEndpointAddress; 2794 endpoint->bEndpointAddress;
2795 } 2795 }
2796 } 2796 }
2797 if (!(ftdi->bulk_in_endpointAddr && ftdi->bulk_out_endpointAddr)) { 2797 if (!(ftdi->bulk_in_endpointAddr && ftdi->bulk_out_endpointAddr)) {
2798 dev_err(&ftdi->udev->dev, "Could not find both bulk-in and bulk" 2798 dev_err(&ftdi->udev->dev, "Could not find both bulk-in and bulk"
2799 "-out endpoints\n"); 2799 "-out endpoints\n");
2800 retval = -ENODEV; 2800 retval = -ENODEV;
2801 goto error; 2801 goto error;
2802 } 2802 }
2803 dev_info(&ftdi->udev->dev, "interface %d has I=%02X O=%02X\n", 2803 dev_info(&ftdi->udev->dev, "interface %d has I=%02X O=%02X\n",
2804 iface_desc->desc.bInterfaceNumber, ftdi->bulk_in_endpointAddr, 2804 iface_desc->desc.bInterfaceNumber, ftdi->bulk_in_endpointAddr,
2805 ftdi->bulk_out_endpointAddr); 2805 ftdi->bulk_out_endpointAddr);
2806 usb_set_intfdata(interface, ftdi); 2806 usb_set_intfdata(interface, ftdi);
2807 if (iface_desc->desc.bInterfaceNumber == 0 && 2807 if (iface_desc->desc.bInterfaceNumber == 0 &&
2808 ftdi->bulk_in_endpointAddr == 0x81 && 2808 ftdi->bulk_in_endpointAddr == 0x81 &&
2809 ftdi->bulk_out_endpointAddr == 0x02) { 2809 ftdi->bulk_out_endpointAddr == 0x02) {
2810 retval = usb_register_dev(interface, &ftdi_elan_jtag_class); 2810 retval = usb_register_dev(interface, &ftdi_elan_jtag_class);
2811 if (retval) { 2811 if (retval) {
2812 dev_err(&ftdi->udev->dev, "Not able to get a minor for " 2812 dev_err(&ftdi->udev->dev, "Not able to get a minor for "
2813 "this device.\n"); 2813 "this device.\n");
2814 usb_set_intfdata(interface, NULL); 2814 usb_set_intfdata(interface, NULL);
2815 retval = -ENOMEM; 2815 retval = -ENOMEM;
2816 goto error; 2816 goto error;
2817 } else { 2817 } else {
2818 ftdi->class = &ftdi_elan_jtag_class; 2818 ftdi->class = &ftdi_elan_jtag_class;
2819 dev_info(&ftdi->udev->dev, "USB FDTI=%p JTAG interface " 2819 dev_info(&ftdi->udev->dev, "USB FDTI=%p JTAG interface "
2820 "%d now attached to ftdi%d\n", ftdi, 2820 "%d now attached to ftdi%d\n", ftdi,
2821 iface_desc->desc.bInterfaceNumber, 2821 iface_desc->desc.bInterfaceNumber,
2822 interface->minor); 2822 interface->minor);
2823 return 0; 2823 return 0;
2824 } 2824 }
2825 } else if (iface_desc->desc.bInterfaceNumber == 1 && 2825 } else if (iface_desc->desc.bInterfaceNumber == 1 &&
2826 ftdi->bulk_in_endpointAddr == 0x83 && 2826 ftdi->bulk_in_endpointAddr == 0x83 &&
2827 ftdi->bulk_out_endpointAddr == 0x04) { 2827 ftdi->bulk_out_endpointAddr == 0x04) {
2828 ftdi->class = NULL; 2828 ftdi->class = NULL;
2829 dev_info(&ftdi->udev->dev, "USB FDTI=%p ELAN interface %d now a" 2829 dev_info(&ftdi->udev->dev, "USB FDTI=%p ELAN interface %d now a"
2830 "ctivated\n", ftdi, iface_desc->desc.bInterfaceNumber); 2830 "ctivated\n", ftdi, iface_desc->desc.bInterfaceNumber);
2831 INIT_DELAYED_WORK(&ftdi->status_work, ftdi_elan_status_work); 2831 INIT_DELAYED_WORK(&ftdi->status_work, ftdi_elan_status_work);
2832 INIT_DELAYED_WORK(&ftdi->command_work, ftdi_elan_command_work); 2832 INIT_DELAYED_WORK(&ftdi->command_work, ftdi_elan_command_work);
2833 INIT_DELAYED_WORK(&ftdi->respond_work, ftdi_elan_respond_work); 2833 INIT_DELAYED_WORK(&ftdi->respond_work, ftdi_elan_respond_work);
2834 ftdi_status_queue_work(ftdi, msecs_to_jiffies(3 *1000)); 2834 ftdi_status_queue_work(ftdi, msecs_to_jiffies(3 *1000));
2835 return 0; 2835 return 0;
2836 } else { 2836 } else {
2837 dev_err(&ftdi->udev->dev, 2837 dev_err(&ftdi->udev->dev,
2838 "Could not find ELAN's U132 device\n"); 2838 "Could not find ELAN's U132 device\n");
2839 retval = -ENODEV; 2839 retval = -ENODEV;
2840 goto error; 2840 goto error;
2841 } 2841 }
2842 error:if (ftdi) { 2842error:if (ftdi) {
2843 ftdi_elan_put_kref(ftdi); 2843 ftdi_elan_put_kref(ftdi);
2844 } 2844 }
2845 return retval; 2845 return retval;
2846} 2846}
2847 2847
2848static void ftdi_elan_disconnect(struct usb_interface *interface) 2848static void ftdi_elan_disconnect(struct usb_interface *interface)
2849{ 2849{
2850 struct usb_ftdi *ftdi = usb_get_intfdata(interface); 2850 struct usb_ftdi *ftdi = usb_get_intfdata(interface);
2851 ftdi->disconnected += 1; 2851 ftdi->disconnected += 1;
2852 if (ftdi->class) { 2852 if (ftdi->class) {
2853 int minor = interface->minor; 2853 int minor = interface->minor;
2854 struct usb_class_driver *class = ftdi->class; 2854 struct usb_class_driver *class = ftdi->class;
2855 usb_set_intfdata(interface, NULL); 2855 usb_set_intfdata(interface, NULL);
2856 usb_deregister_dev(interface, class); 2856 usb_deregister_dev(interface, class);
2857 dev_info(&ftdi->udev->dev, "USB FTDI U132 jtag interface on min" 2857 dev_info(&ftdi->udev->dev, "USB FTDI U132 jtag interface on min"
2858 "or %d now disconnected\n", minor); 2858 "or %d now disconnected\n", minor);
2859 } else { 2859 } else {
2860 ftdi_status_cancel_work(ftdi); 2860 ftdi_status_cancel_work(ftdi);
2861 ftdi_command_cancel_work(ftdi); 2861 ftdi_command_cancel_work(ftdi);
2862 ftdi_response_cancel_work(ftdi); 2862 ftdi_response_cancel_work(ftdi);
2863 ftdi_elan_abandon_completions(ftdi); 2863 ftdi_elan_abandon_completions(ftdi);
2864 ftdi_elan_abandon_targets(ftdi); 2864 ftdi_elan_abandon_targets(ftdi);
2865 if (ftdi->registered) { 2865 if (ftdi->registered) {
2866 platform_device_unregister(&ftdi->platform_dev); 2866 platform_device_unregister(&ftdi->platform_dev);
2867 ftdi->synchronized = 0; 2867 ftdi->synchronized = 0;
2868 ftdi->enumerated = 0; 2868 ftdi->enumerated = 0;
2869 ftdi->initialized = 0; 2869 ftdi->initialized = 0;
2870 ftdi->registered = 0; 2870 ftdi->registered = 0;
2871 } 2871 }
2872 flush_workqueue(status_queue); 2872 flush_workqueue(status_queue);
2873 flush_workqueue(command_queue); 2873 flush_workqueue(command_queue);
2874 flush_workqueue(respond_queue); 2874 flush_workqueue(respond_queue);
2875 ftdi->disconnected += 1; 2875 ftdi->disconnected += 1;
2876 usb_set_intfdata(interface, NULL); 2876 usb_set_intfdata(interface, NULL);
2877 dev_info(&ftdi->udev->dev, "USB FTDI U132 host controller inter" 2877 dev_info(&ftdi->udev->dev, "USB FTDI U132 host controller inter"
2878 "face now disconnected\n"); 2878 "face now disconnected\n");
2879 } 2879 }
2880 ftdi_elan_put_kref(ftdi); 2880 ftdi_elan_put_kref(ftdi);
2881} 2881}
2882 2882
2883static struct usb_driver ftdi_elan_driver = { 2883static struct usb_driver ftdi_elan_driver = {
2884 .name = "ftdi-elan", 2884 .name = "ftdi-elan",
2885 .probe = ftdi_elan_probe, 2885 .probe = ftdi_elan_probe,
2886 .disconnect = ftdi_elan_disconnect, 2886 .disconnect = ftdi_elan_disconnect,
2887 .id_table = ftdi_elan_table, 2887 .id_table = ftdi_elan_table,
2888}; 2888};
2889static int __init ftdi_elan_init(void) 2889static int __init ftdi_elan_init(void)
2890{ 2890{
2891 int result; 2891 int result;
2892 printk(KERN_INFO "driver %s\n", ftdi_elan_driver.name); 2892 printk(KERN_INFO "driver %s\n", ftdi_elan_driver.name);
2893 mutex_init(&ftdi_module_lock); 2893 mutex_init(&ftdi_module_lock);
2894 INIT_LIST_HEAD(&ftdi_static_list); 2894 INIT_LIST_HEAD(&ftdi_static_list);
2895 status_queue = create_singlethread_workqueue("ftdi-status-control"); 2895 status_queue = create_singlethread_workqueue("ftdi-status-control");
2896 if (!status_queue) 2896 if (!status_queue)
2897 goto err_status_queue; 2897 goto err_status_queue;
2898 command_queue = create_singlethread_workqueue("ftdi-command-engine"); 2898 command_queue = create_singlethread_workqueue("ftdi-command-engine");
2899 if (!command_queue) 2899 if (!command_queue)
2900 goto err_command_queue; 2900 goto err_command_queue;
2901 respond_queue = create_singlethread_workqueue("ftdi-respond-engine"); 2901 respond_queue = create_singlethread_workqueue("ftdi-respond-engine");
2902 if (!respond_queue) 2902 if (!respond_queue)
2903 goto err_respond_queue; 2903 goto err_respond_queue;
2904 result = usb_register(&ftdi_elan_driver); 2904 result = usb_register(&ftdi_elan_driver);
2905 if (result) { 2905 if (result) {
2906 destroy_workqueue(status_queue); 2906 destroy_workqueue(status_queue);
2907 destroy_workqueue(command_queue); 2907 destroy_workqueue(command_queue);
2908 destroy_workqueue(respond_queue); 2908 destroy_workqueue(respond_queue);
2909 printk(KERN_ERR "usb_register failed. Error number %d\n", 2909 printk(KERN_ERR "usb_register failed. Error number %d\n",
2910 result); 2910 result);
2911 } 2911 }
2912 return result; 2912 return result;
2913 2913
2914 err_respond_queue: 2914err_respond_queue:
2915 destroy_workqueue(command_queue); 2915 destroy_workqueue(command_queue);
2916 err_command_queue: 2916err_command_queue:
2917 destroy_workqueue(status_queue); 2917 destroy_workqueue(status_queue);
2918 err_status_queue: 2918err_status_queue:
2919 printk(KERN_ERR "%s couldn't create workqueue\n", ftdi_elan_driver.name); 2919 printk(KERN_ERR "%s couldn't create workqueue\n", ftdi_elan_driver.name);
2920 return -ENOMEM; 2920 return -ENOMEM;
2921} 2921}
2922 2922
2923static void __exit ftdi_elan_exit(void) 2923static void __exit ftdi_elan_exit(void)
2924{ 2924{
2925 struct usb_ftdi *ftdi; 2925 struct usb_ftdi *ftdi;
2926 struct usb_ftdi *temp; 2926 struct usb_ftdi *temp;
2927 usb_deregister(&ftdi_elan_driver); 2927 usb_deregister(&ftdi_elan_driver);
2928 printk(KERN_INFO "ftdi_u132 driver deregistered\n"); 2928 printk(KERN_INFO "ftdi_u132 driver deregistered\n");
2929 list_for_each_entry_safe(ftdi, temp, &ftdi_static_list, ftdi_list) { 2929 list_for_each_entry_safe(ftdi, temp, &ftdi_static_list, ftdi_list) {
2930 ftdi_status_cancel_work(ftdi); 2930 ftdi_status_cancel_work(ftdi);
2931 ftdi_command_cancel_work(ftdi); 2931 ftdi_command_cancel_work(ftdi);
2932 ftdi_response_cancel_work(ftdi); 2932 ftdi_response_cancel_work(ftdi);
2933 } flush_workqueue(status_queue); 2933 } flush_workqueue(status_queue);
2934 destroy_workqueue(status_queue); 2934 destroy_workqueue(status_queue);
2935 status_queue = NULL; 2935 status_queue = NULL;
2936 flush_workqueue(command_queue); 2936 flush_workqueue(command_queue);
2937 destroy_workqueue(command_queue); 2937 destroy_workqueue(command_queue);
2938 command_queue = NULL; 2938 command_queue = NULL;
2939 flush_workqueue(respond_queue); 2939 flush_workqueue(respond_queue);
2940 destroy_workqueue(respond_queue); 2940 destroy_workqueue(respond_queue);
2941 respond_queue = NULL; 2941 respond_queue = NULL;
2942} 2942}
2943 2943
2944 2944
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-28 07:23:40 -0500