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authorOliver Bock <o.bock@fh-wolfenbuettel.de>2006-06-22 13:04:47 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-07-12 19:03:21 -0400
commit9189bfc2df0fd87e0e537fe7ad4cf3b66a440fe4 (patch)
tree2ae07311531ff2ce51d9e93de7fc10953efae335 /drivers/usb/misc
parent58a5b0a6346b71bf01f0d49cfcc91d3225a373aa (diff)
[PATCH] USB: rename Cypress CY7C63xxx driver to proper name and fix up some tiny things
This is a new driver for the Cypress CY7C63xxx mirco controller series. It currently supports the pre-programmed CYC63001A-PC by AK Modul-Bus GmbH. It's based on a kernel 2.4 driver (cyport) by Marcus Maul which I ported to kernel 2.6 using sysfs. I intend to support more controllers of this family (and more features) as soon as I get hold of the required IDs etc. Please see the source code's header for more information. Signed-off-by: Oliver Bock <o.bock@fh-wolfenbuettel.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/misc')
-rw-r--r--drivers/usb/misc/Kconfig10
-rw-r--r--drivers/usb/misc/Makefile2
-rw-r--r--drivers/usb/misc/cy7c63.c244
-rw-r--r--drivers/usb/misc/cypress_cy7c63.c279
4 files changed, 285 insertions, 250 deletions
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index daa486dde8cf..88928a4be805 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -88,19 +88,19 @@ config USB_LED
88 To compile this driver as a module, choose M here: the 88 To compile this driver as a module, choose M here: the
89 module will be called usbled. 89 module will be called usbled.
90 90
91config USB_CY7C63 91config USB_CYPRESS_CY7C63
92 tristate "Cypress CY7C63xxx USB driver support" 92 tristate "Cypress CY7C63xxx USB driver support"
93 depends on USB 93 depends on USB
94 help 94 help
95 Say Y here if you want to connect a Cypress CY7C63xxx 95 Say Y here if you want to connect a Cypress CY7C63xxx
96 micro controller to your computer's USB port. This driver 96 micro controller to your computer's USB port. Currently this
97 supports the pre-programmed devices (incl. firmware) by 97 driver supports the pre-programmed devices (incl. firmware)
98 AK Modul-Bus Computer GmbH. 98 by AK Modul-Bus Computer GmbH.
99 99
100 Please see: http://www.ak-modul-bus.de/stat/mikrocontroller.html 100 Please see: http://www.ak-modul-bus.de/stat/mikrocontroller.html
101 101
102 To compile this driver as a module, choose M here: the 102 To compile this driver as a module, choose M here: the
103 module will be called cy7c63. 103 module will be called cypress_cy7c63.
104 104
105config USB_CYTHERM 105config USB_CYTHERM
106 tristate "Cypress USB thermometer driver support" 106 tristate "Cypress USB thermometer driver support"
diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile
index f25a97227297..2927260c5812 100644
--- a/drivers/usb/misc/Makefile
+++ b/drivers/usb/misc/Makefile
@@ -4,7 +4,7 @@
4# 4#
5 5
6obj-$(CONFIG_USB_AUERSWALD) += auerswald.o 6obj-$(CONFIG_USB_AUERSWALD) += auerswald.o
7obj-$(CONFIG_USB_CY7C63) += cy7c63.o 7obj-$(CONFIG_USB_CYPRESS_CY7C63)+= cypress_cy7c63.o
8obj-$(CONFIG_USB_CYTHERM) += cytherm.o 8obj-$(CONFIG_USB_CYTHERM) += cytherm.o
9obj-$(CONFIG_USB_EMI26) += emi26.o 9obj-$(CONFIG_USB_EMI26) += emi26.o
10obj-$(CONFIG_USB_EMI62) += emi62.o 10obj-$(CONFIG_USB_EMI62) += emi62.o
diff --git a/drivers/usb/misc/cy7c63.c b/drivers/usb/misc/cy7c63.c
deleted file mode 100644
index 8a1c10b89b76..000000000000
--- a/drivers/usb/misc/cy7c63.c
+++ /dev/null
@@ -1,244 +0,0 @@
1/*
2* cy7c63.c
3*
4* Copyright (c) 2006 Oliver Bock (bock@fh-wolfenbuettel.de)
5*
6* This driver is based on the Cypress Thermometer USB Driver by
7* Marcus Maul and the 2.0 version of Greg Kroah-Hartman's
8* USB Skeleton driver.
9*
10* Is is a generic driver for the Cypress CY7C63000 family.
11* For the time being it enables you to toggle the single I/O ports
12* of the device.
13*
14* Supported vendors: AK Modul-Bus Computer GmbH
15* Supported devices: CY7C63001A-PC (to be continued...)
16* Supported functions: Read/Write Ports (to be continued...)
17*
18* Chipsets families: CY7C63000, CY7C63001, CY7C63100, CY7C63101
19*
20*
21* This program is free software; you can redistribute it and/or
22* modify it under the terms of the GNU General Public License as
23* published by the Free Software Foundation, version 2.
24*/
25
26#include <linux/init.h>
27#include <linux/module.h>
28#include <linux/kernel.h>
29#include <linux/usb.h>
30
31#define DRIVER_AUTHOR "Oliver Bock (bock@fh-wolfenbuettel.de)"
32#define DRIVER_DESC "Cypress CY7C63xxx USB driver"
33
34#define CY7C63_VENDOR_ID 0xa2c
35#define CY7C63_PRODUCT_ID 0x8
36
37#define CY7C63_READ_PORT 0x4
38#define CY7C63_WRITE_PORT 0x5
39#define CY7C63_READ_RAM 0x2
40#define CY7C63_WRITE_RAM 0x3
41#define CY7C63_READ_ROM 0x1
42
43#define CY7C63_READ_PORT_ID0 0
44#define CY7C63_WRITE_PORT_ID0 0
45#define CY7C63_READ_PORT_ID1 0x2
46#define CY7C63_WRITE_PORT_ID1 1
47
48#define CY7C63_MAX_REQSIZE 8
49
50
51/* table of devices that work with this driver */
52static struct usb_device_id cy7c63_table [] = {
53 { USB_DEVICE(CY7C63_VENDOR_ID, CY7C63_PRODUCT_ID) },
54 { }
55};
56MODULE_DEVICE_TABLE(usb, cy7c63_table);
57
58/* structure to hold all of our device specific stuff */
59struct cy7c63 {
60 struct usb_device * udev;
61 char port0;
62 char port1;
63};
64
65/* used to send usb control messages to device */
66int vendor_command(struct cy7c63 *dev, unsigned char request,
67 unsigned char address, unsigned char data) {
68
69 int retval = 0;
70 unsigned int pipe;
71 unsigned char *iobuf;
72
73 /* allocate some memory for the i/o buffer*/
74 iobuf = kzalloc(CY7C63_MAX_REQSIZE, GFP_KERNEL);
75 if (!iobuf) {
76 dev_err(&dev->udev->dev, "Out of memory!\n");
77 retval = -ENOMEM;
78 goto error;
79 }
80
81 dev_dbg(&dev->udev->dev, "Sending usb_control_msg (data: %d)\n", data);
82
83 /* prepare usb control message and send it upstream */
84 pipe = usb_rcvctrlpipe(dev->udev, 0);
85 retval = usb_control_msg(dev->udev, pipe, request,
86 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
87 address, data, iobuf, CY7C63_MAX_REQSIZE,
88 USB_CTRL_GET_TIMEOUT);
89
90 /* store returned data (more READs to be added!) */
91 switch (request) {
92 case CY7C63_READ_PORT:
93 if (address == CY7C63_READ_PORT_ID0) {
94 dev->port0 = iobuf[1];
95 dev_dbg(&dev->udev->dev,
96 "READ_PORT0 returned: %d\n",dev->port0);
97 }
98 else if (address == CY7C63_READ_PORT_ID1) {
99 dev->port1 = iobuf[1];
100 dev_dbg(&dev->udev->dev,
101 "READ_PORT1 returned: %d\n",dev->port1);
102 }
103 break;
104 }
105
106 kfree(iobuf);
107error:
108 return retval;
109}
110
111#define get_set_port(num,read_id,write_id) \
112static ssize_t set_port##num(struct device *dev, struct device_attribute *attr, \
113 const char *buf, size_t count) { \
114 \
115 int value; \
116 int result = 0; \
117 \
118 struct usb_interface *intf = to_usb_interface(dev); \
119 struct cy7c63 *cyp = usb_get_intfdata(intf); \
120 \
121 dev_dbg(&cyp->udev->dev, "WRITE_PORT%d called\n", num); \
122 \
123 /* validate input data */ \
124 if (sscanf(buf, "%d", &value) < 1) { \
125 result = -EINVAL; \
126 goto error; \
127 } \
128 if (value>255 || value<0) { \
129 result = -EINVAL; \
130 goto error; \
131 } \
132 \
133 result = vendor_command(cyp, CY7C63_WRITE_PORT, write_id, \
134 (unsigned char)value); \
135 \
136 dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n",result); \
137error: \
138 return result < 0 ? result : count; \
139} \
140 \
141static ssize_t get_port##num(struct device *dev, \
142 struct device_attribute *attr, char *buf) { \
143 \
144 int result = 0; \
145 \
146 struct usb_interface *intf = to_usb_interface(dev); \
147 struct cy7c63 *cyp = usb_get_intfdata(intf); \
148 \
149 dev_dbg(&cyp->udev->dev, "READ_PORT%d called\n", num); \
150 \
151 result = vendor_command(cyp, CY7C63_READ_PORT, read_id, 0); \
152 \
153 dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n", result); \
154 \
155 return sprintf(buf, "%d", cyp->port##num); \
156} \
157static DEVICE_ATTR(port##num, S_IWUGO | S_IRUGO, get_port##num, set_port##num);
158
159get_set_port(0, CY7C63_READ_PORT_ID0, CY7C63_WRITE_PORT_ID0);
160get_set_port(1, CY7C63_READ_PORT_ID1, CY7C63_WRITE_PORT_ID1);
161
162static int cy7c63_probe(struct usb_interface *interface,
163 const struct usb_device_id *id) {
164
165 struct cy7c63 *dev = NULL;
166 int retval = -ENOMEM;
167
168 /* allocate memory for our device state and initialize it */
169 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
170 if (dev == NULL) {
171 dev_err(&dev->udev->dev, "Out of memory!\n");
172 goto error;
173 }
174
175 dev->udev = usb_get_dev(interface_to_usbdev(interface));
176
177 /* save our data pointer in this interface device */
178 usb_set_intfdata(interface, dev);
179
180 /* create device attribute files */
181 device_create_file(&interface->dev, &dev_attr_port0);
182 device_create_file(&interface->dev, &dev_attr_port1);
183
184 /* let the user know what node this device is now attached to */
185 dev_info(&interface->dev,
186 "Cypress CY7C63xxx device now attached\n");
187
188 retval = 0;
189error:
190 return retval;
191}
192
193static void cy7c63_disconnect(struct usb_interface *interface) {
194
195 struct cy7c63 *dev;
196
197 dev = usb_get_intfdata(interface);
198 usb_set_intfdata(interface, NULL);
199
200 /* remove device attribute files */
201 device_remove_file(&interface->dev, &dev_attr_port0);
202 device_remove_file(&interface->dev, &dev_attr_port1);
203
204 usb_put_dev(dev->udev);
205
206 dev_info(&interface->dev,
207 "Cypress CY7C63xxx device now disconnected\n");
208
209 kfree(dev);
210}
211
212static struct usb_driver cy7c63_driver = {
213 .name = "cy7c63",
214 .probe = cy7c63_probe,
215 .disconnect = cy7c63_disconnect,
216 .id_table = cy7c63_table,
217};
218
219static int __init cy7c63_init(void) {
220
221 int result;
222
223 /* register this driver with the USB subsystem */
224 result = usb_register(&cy7c63_driver);
225 if (result) {
226 err("Function usb_register failed! Error number: %d\n", result);
227 }
228
229 return result;
230}
231
232static void __exit cy7c63_exit(void) {
233
234 /* deregister this driver with the USB subsystem */
235 usb_deregister(&cy7c63_driver);
236}
237
238module_init(cy7c63_init);
239module_exit(cy7c63_exit);
240
241MODULE_AUTHOR(DRIVER_AUTHOR);
242MODULE_DESCRIPTION(DRIVER_DESC);
243
244MODULE_LICENSE("GPL");
diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c
new file mode 100644
index 000000000000..e091d327bd9e
--- /dev/null
+++ b/drivers/usb/misc/cypress_cy7c63.c
@@ -0,0 +1,279 @@
1/*
2* cypress_cy7c63.c
3*
4* Copyright (c) 2006 Oliver Bock (o.bock@fh-wolfenbuettel.de)
5*
6* This driver is based on the Cypress USB Driver by Marcus Maul
7* (cyport) and the 2.0 version of Greg Kroah-Hartman's
8* USB Skeleton driver.
9*
10* This is a generic driver for the Cypress CY7C63xxx family.
11* For the time being it enables you to read from and write to
12* the single I/O ports of the device.
13*
14* Supported vendors: AK Modul-Bus Computer GmbH
15* Supported devices: CY7C63001A-PC (to be continued...)
16* Supported functions: Read/Write Ports (to be continued...)
17*
18*
19* This program is free software; you can redistribute it and/or
20* modify it under the terms of the GNU General Public License as
21* published by the Free Software Foundation, version 2.
22*/
23
24#include <linux/init.h>
25#include <linux/module.h>
26#include <linux/kernel.h>
27#include <linux/usb.h>
28
29#define DRIVER_AUTHOR "Oliver Bock (o.bock@fh-wolfenbuettel.de)"
30#define DRIVER_DESC "Cypress CY7C63xxx USB driver"
31
32#define CYPRESS_VENDOR_ID 0xa2c
33#define CYPRESS_PRODUCT_ID 0x8
34
35#define CYPRESS_READ_PORT 0x4
36#define CYPRESS_WRITE_PORT 0x5
37
38#define CYPRESS_READ_RAM 0x2
39#define CYPRESS_WRITE_RAM 0x3
40#define CYPRESS_READ_ROM 0x1
41
42#define CYPRESS_READ_PORT_ID0 0
43#define CYPRESS_WRITE_PORT_ID0 0
44#define CYPRESS_READ_PORT_ID1 0x2
45#define CYPRESS_WRITE_PORT_ID1 1
46
47#define CYPRESS_MAX_REQSIZE 8
48
49
50/* table of devices that work with this driver */
51static struct usb_device_id cypress_table [] = {
52 { USB_DEVICE(CYPRESS_VENDOR_ID, CYPRESS_PRODUCT_ID) },
53 { }
54};
55MODULE_DEVICE_TABLE(usb, cypress_table);
56
57/* structure to hold all of our device specific stuff */
58struct cypress {
59 struct usb_device * udev;
60 unsigned char port[2];
61};
62
63/* used to send usb control messages to device */
64static int vendor_command(struct cypress *dev, unsigned char request,
65 unsigned char address, unsigned char data)
66{
67 int retval = 0;
68 unsigned int pipe;
69 unsigned char *iobuf;
70
71 /* allocate some memory for the i/o buffer*/
72 iobuf = kzalloc(CYPRESS_MAX_REQSIZE, GFP_KERNEL);
73 if (!iobuf) {
74 dev_err(&dev->udev->dev, "Out of memory!\n");
75 retval = -ENOMEM;
76 goto error;
77 }
78
79 dev_dbg(&dev->udev->dev, "Sending usb_control_msg (data: %d)\n", data);
80
81 /* prepare usb control message and send it upstream */
82 pipe = usb_rcvctrlpipe(dev->udev, 0);
83 retval = usb_control_msg(dev->udev, pipe, request,
84 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
85 address, data, iobuf, CYPRESS_MAX_REQSIZE,
86 USB_CTRL_GET_TIMEOUT);
87
88 /* store returned data (more READs to be added) */
89 switch (request) {
90 case CYPRESS_READ_PORT:
91 if (address == CYPRESS_READ_PORT_ID0) {
92 dev->port[0] = iobuf[1];
93 dev_dbg(&dev->udev->dev,
94 "READ_PORT0 returned: %d\n",
95 dev->port[0]);
96 }
97 else if (address == CYPRESS_READ_PORT_ID1) {
98 dev->port[1] = iobuf[1];
99 dev_dbg(&dev->udev->dev,
100 "READ_PORT1 returned: %d\n",
101 dev->port[1]);
102 }
103 break;
104 }
105
106 kfree(iobuf);
107error:
108 return retval;
109}
110
111/* write port value */
112static ssize_t write_port(struct device *dev, struct device_attribute *attr,
113 const char *buf, size_t count,
114 int port_num, int write_id)
115{
116 int value = -1;
117 int result = 0;
118
119 struct usb_interface *intf = to_usb_interface(dev);
120 struct cypress *cyp = usb_get_intfdata(intf);
121
122 dev_dbg(&cyp->udev->dev, "WRITE_PORT%d called\n", port_num);
123
124 /* validate input data */
125 if (sscanf(buf, "%d", &value) < 1) {
126 result = -EINVAL;
127 goto error;
128 }
129 if (value < 0 || value > 255) {
130 result = -EINVAL;
131 goto error;
132 }
133
134 result = vendor_command(cyp, CYPRESS_WRITE_PORT, write_id,
135 (unsigned char)value);
136
137 dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n", result);
138error:
139 return result < 0 ? result : count;
140}
141
142/* attribute callback handler (write) */
143static ssize_t set_port0_handler(struct device *dev,
144 struct device_attribute *attr,
145 const char *buf, size_t count)
146{
147 return write_port(dev, attr, buf, count, 0, CYPRESS_WRITE_PORT_ID0);
148}
149
150/* attribute callback handler (write) */
151static ssize_t set_port1_handler(struct device *dev,
152 struct device_attribute *attr,
153 const char *buf, size_t count)
154{
155 return write_port(dev, attr, buf, count, 1, CYPRESS_WRITE_PORT_ID1);
156}
157
158/* read port value */
159static ssize_t read_port(struct device *dev, struct device_attribute *attr,
160 char *buf, int port_num, int read_id)
161{
162 int result = 0;
163
164 struct usb_interface *intf = to_usb_interface(dev);
165 struct cypress *cyp = usb_get_intfdata(intf);
166
167 dev_dbg(&cyp->udev->dev, "READ_PORT%d called\n", port_num);
168
169 result = vendor_command(cyp, CYPRESS_READ_PORT, read_id, 0);
170
171 dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n", result);
172
173 return sprintf(buf, "%d", cyp->port[port_num]);
174}
175
176/* attribute callback handler (read) */
177static ssize_t get_port0_handler(struct device *dev,
178 struct device_attribute *attr, char *buf)
179{
180 return read_port(dev, attr, buf, 0, CYPRESS_READ_PORT_ID0);
181}
182
183/* attribute callback handler (read) */
184static ssize_t get_port1_handler(struct device *dev,
185 struct device_attribute *attr, char *buf)
186{
187 return read_port(dev, attr, buf, 1, CYPRESS_READ_PORT_ID1);
188}
189
190static DEVICE_ATTR(port0, S_IWUGO | S_IRUGO,
191 get_port0_handler, set_port0_handler);
192
193static DEVICE_ATTR(port1, S_IWUGO | S_IRUGO,
194 get_port1_handler, set_port1_handler);
195
196
197static int cypress_probe(struct usb_interface *interface,
198 const struct usb_device_id *id)
199{
200 struct cypress *dev = NULL;
201 int retval = -ENOMEM;
202
203 /* allocate memory for our device state and initialize it */
204 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
205 if (dev == NULL) {
206 dev_err(&dev->udev->dev, "Out of memory!\n");
207 goto error;
208 }
209
210 dev->udev = usb_get_dev(interface_to_usbdev(interface));
211
212 /* save our data pointer in this interface device */
213 usb_set_intfdata(interface, dev);
214
215 /* create device attribute files */
216 device_create_file(&interface->dev, &dev_attr_port0);
217 device_create_file(&interface->dev, &dev_attr_port1);
218
219 /* let the user know that the device is now attached */
220 dev_info(&interface->dev,
221 "Cypress CY7C63xxx device now attached\n");
222
223 retval = 0;
224error:
225 return retval;
226}
227
228static void cypress_disconnect(struct usb_interface *interface)
229{
230 struct cypress *dev;
231
232 dev = usb_get_intfdata(interface);
233 usb_set_intfdata(interface, NULL);
234
235 /* remove device attribute files */
236 device_remove_file(&interface->dev, &dev_attr_port0);
237 device_remove_file(&interface->dev, &dev_attr_port1);
238
239 usb_put_dev(dev->udev);
240
241 dev_info(&interface->dev,
242 "Cypress CY7C63xxx device now disconnected\n");
243
244 kfree(dev);
245}
246
247static struct usb_driver cypress_driver = {
248 .name = "cypress_cy7c63",
249 .probe = cypress_probe,
250 .disconnect = cypress_disconnect,
251 .id_table = cypress_table,
252};
253
254static int __init cypress_init(void)
255{
256 int result;
257
258 /* register this driver with the USB subsystem */
259 result = usb_register(&cypress_driver);
260 if (result) {
261 err("Function usb_register failed! Error number: %d\n", result);
262 }
263
264 return result;
265}
266
267static void __exit cypress_exit(void)
268{
269 /* deregister this driver with the USB subsystem */
270 usb_deregister(&cypress_driver);
271}
272
273module_init(cypress_init);
274module_exit(cypress_exit);
275
276MODULE_AUTHOR(DRIVER_AUTHOR);
277MODULE_DESCRIPTION(DRIVER_DESC);
278
279MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-11 04:36:52 -0500