diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/nsp32.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/scsi/nsp32.c')
-rw-r--r-- | drivers/scsi/nsp32.c | 3585 |
1 files changed, 3585 insertions, 0 deletions
diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c new file mode 100644 index 000000000000..acfead1e9f17 --- /dev/null +++ b/drivers/scsi/nsp32.c | |||
@@ -0,0 +1,3585 @@ | |||
1 | /* | ||
2 | * NinjaSCSI-32Bi Cardbus, NinjaSCSI-32UDE PCI/CardBus SCSI driver | ||
3 | * Copyright (C) 2001, 2002, 2003 | ||
4 | * YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp> | ||
5 | * GOTO Masanori <gotom@debian.or.jp>, <gotom@debian.org> | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2, or (at your option) | ||
10 | * any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * | ||
18 | * Revision History: | ||
19 | * 1.0: Initial Release. | ||
20 | * 1.1: Add /proc SDTR status. | ||
21 | * Remove obsolete error handler nsp32_reset. | ||
22 | * Some clean up. | ||
23 | * 1.2: PowerPC (big endian) support. | ||
24 | */ | ||
25 | |||
26 | #include <linux/version.h> | ||
27 | #include <linux/module.h> | ||
28 | #include <linux/init.h> | ||
29 | #include <linux/kernel.h> | ||
30 | #include <linux/sched.h> | ||
31 | #include <linux/slab.h> | ||
32 | #include <linux/string.h> | ||
33 | #include <linux/timer.h> | ||
34 | #include <linux/ioport.h> | ||
35 | #include <linux/major.h> | ||
36 | #include <linux/blkdev.h> | ||
37 | #include <linux/interrupt.h> | ||
38 | #include <linux/pci.h> | ||
39 | #include <linux/delay.h> | ||
40 | #include <linux/ctype.h> | ||
41 | |||
42 | #include <asm/dma.h> | ||
43 | #include <asm/system.h> | ||
44 | #include <asm/io.h> | ||
45 | |||
46 | #include <scsi/scsi.h> | ||
47 | #include <scsi/scsi_cmnd.h> | ||
48 | #include <scsi/scsi_device.h> | ||
49 | #include <scsi/scsi_host.h> | ||
50 | #include <scsi/scsi_ioctl.h> | ||
51 | |||
52 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)) | ||
53 | # include <linux/blk.h> | ||
54 | #endif | ||
55 | |||
56 | #include "nsp32.h" | ||
57 | |||
58 | |||
59 | /*********************************************************************** | ||
60 | * Module parameters | ||
61 | */ | ||
62 | static int trans_mode = 0; /* default: BIOS */ | ||
63 | module_param (trans_mode, int, 0); | ||
64 | MODULE_PARM_DESC(trans_mode, "transfer mode (0: BIOS(default) 1: Async 2: Ultra20M"); | ||
65 | #define ASYNC_MODE 1 | ||
66 | #define ULTRA20M_MODE 2 | ||
67 | |||
68 | static int auto_param = 0; /* default: ON */ | ||
69 | module_param (auto_param, bool, 0); | ||
70 | MODULE_PARM_DESC(auto_param, "AutoParameter mode (0: ON(default) 1: OFF)"); | ||
71 | |||
72 | static int disc_priv = 1; /* default: OFF */ | ||
73 | module_param (disc_priv, bool, 0); | ||
74 | MODULE_PARM_DESC(disc_priv, "disconnection privilege mode (0: ON 1: OFF(default))"); | ||
75 | |||
76 | MODULE_AUTHOR("YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>, GOTO Masanori <gotom@debian.or.jp>"); | ||
77 | MODULE_DESCRIPTION("Workbit NinjaSCSI-32Bi/UDE CardBus/PCI SCSI host bus adapter module"); | ||
78 | MODULE_LICENSE("GPL"); | ||
79 | |||
80 | static const char *nsp32_release_version = "1.2"; | ||
81 | |||
82 | |||
83 | /**************************************************************************** | ||
84 | * Supported hardware | ||
85 | */ | ||
86 | static struct pci_device_id nsp32_pci_table[] __devinitdata = { | ||
87 | { | ||
88 | .vendor = PCI_VENDOR_ID_IODATA, | ||
89 | .device = PCI_DEVICE_ID_NINJASCSI_32BI_CBSC_II, | ||
90 | .subvendor = PCI_ANY_ID, | ||
91 | .subdevice = PCI_ANY_ID, | ||
92 | .driver_data = MODEL_IODATA, | ||
93 | }, | ||
94 | { | ||
95 | .vendor = PCI_VENDOR_ID_WORKBIT, | ||
96 | .device = PCI_DEVICE_ID_NINJASCSI_32BI_KME, | ||
97 | .subvendor = PCI_ANY_ID, | ||
98 | .subdevice = PCI_ANY_ID, | ||
99 | .driver_data = MODEL_KME, | ||
100 | }, | ||
101 | { | ||
102 | .vendor = PCI_VENDOR_ID_WORKBIT, | ||
103 | .device = PCI_DEVICE_ID_NINJASCSI_32BI_WBT, | ||
104 | .subvendor = PCI_ANY_ID, | ||
105 | .subdevice = PCI_ANY_ID, | ||
106 | .driver_data = MODEL_WORKBIT, | ||
107 | }, | ||
108 | { | ||
109 | .vendor = PCI_VENDOR_ID_WORKBIT, | ||
110 | .device = PCI_DEVICE_ID_WORKBIT_STANDARD, | ||
111 | .subvendor = PCI_ANY_ID, | ||
112 | .subdevice = PCI_ANY_ID, | ||
113 | .driver_data = MODEL_PCI_WORKBIT, | ||
114 | }, | ||
115 | { | ||
116 | .vendor = PCI_VENDOR_ID_WORKBIT, | ||
117 | .device = PCI_DEVICE_ID_NINJASCSI_32BI_LOGITEC, | ||
118 | .subvendor = PCI_ANY_ID, | ||
119 | .subdevice = PCI_ANY_ID, | ||
120 | .driver_data = MODEL_LOGITEC, | ||
121 | }, | ||
122 | { | ||
123 | .vendor = PCI_VENDOR_ID_WORKBIT, | ||
124 | .device = PCI_DEVICE_ID_NINJASCSI_32BIB_LOGITEC, | ||
125 | .subvendor = PCI_ANY_ID, | ||
126 | .subdevice = PCI_ANY_ID, | ||
127 | .driver_data = MODEL_PCI_LOGITEC, | ||
128 | }, | ||
129 | { | ||
130 | .vendor = PCI_VENDOR_ID_WORKBIT, | ||
131 | .device = PCI_DEVICE_ID_NINJASCSI_32UDE_MELCO, | ||
132 | .subvendor = PCI_ANY_ID, | ||
133 | .subdevice = PCI_ANY_ID, | ||
134 | .driver_data = MODEL_PCI_MELCO, | ||
135 | }, | ||
136 | { | ||
137 | .vendor = PCI_VENDOR_ID_WORKBIT, | ||
138 | .device = PCI_DEVICE_ID_NINJASCSI_32UDE_MELCO_II, | ||
139 | .subvendor = PCI_ANY_ID, | ||
140 | .subdevice = PCI_ANY_ID, | ||
141 | .driver_data = MODEL_PCI_MELCO, | ||
142 | }, | ||
143 | {0,0,}, | ||
144 | }; | ||
145 | MODULE_DEVICE_TABLE(pci, nsp32_pci_table); | ||
146 | |||
147 | static nsp32_hw_data nsp32_data_base; /* probe <-> detect glue */ | ||
148 | |||
149 | |||
150 | /* | ||
151 | * Period/AckWidth speed conversion table | ||
152 | * | ||
153 | * Note: This period/ackwidth speed table must be in descending order. | ||
154 | */ | ||
155 | static nsp32_sync_table nsp32_sync_table_40M[] = { | ||
156 | /* {PNo, AW, SP, EP, SREQ smpl} Speed(MB/s) Period AckWidth */ | ||
157 | {0x1, 0, 0x0c, 0x0c, SMPL_40M}, /* 20.0 : 50ns, 25ns */ | ||
158 | {0x2, 0, 0x0d, 0x18, SMPL_40M}, /* 13.3 : 75ns, 25ns */ | ||
159 | {0x3, 1, 0x19, 0x19, SMPL_40M}, /* 10.0 : 100ns, 50ns */ | ||
160 | {0x4, 1, 0x1a, 0x1f, SMPL_20M}, /* 8.0 : 125ns, 50ns */ | ||
161 | {0x5, 2, 0x20, 0x25, SMPL_20M}, /* 6.7 : 150ns, 75ns */ | ||
162 | {0x6, 2, 0x26, 0x31, SMPL_20M}, /* 5.7 : 175ns, 75ns */ | ||
163 | {0x7, 3, 0x32, 0x32, SMPL_20M}, /* 5.0 : 200ns, 100ns */ | ||
164 | {0x8, 3, 0x33, 0x38, SMPL_10M}, /* 4.4 : 225ns, 100ns */ | ||
165 | {0x9, 3, 0x39, 0x3e, SMPL_10M}, /* 4.0 : 250ns, 100ns */ | ||
166 | }; | ||
167 | |||
168 | static nsp32_sync_table nsp32_sync_table_20M[] = { | ||
169 | {0x1, 0, 0x19, 0x19, SMPL_40M}, /* 10.0 : 100ns, 50ns */ | ||
170 | {0x2, 0, 0x1a, 0x25, SMPL_20M}, /* 6.7 : 150ns, 50ns */ | ||
171 | {0x3, 1, 0x26, 0x32, SMPL_20M}, /* 5.0 : 200ns, 100ns */ | ||
172 | {0x4, 1, 0x33, 0x3e, SMPL_10M}, /* 4.0 : 250ns, 100ns */ | ||
173 | {0x5, 2, 0x3f, 0x4b, SMPL_10M}, /* 3.3 : 300ns, 150ns */ | ||
174 | {0x6, 2, 0x4c, 0x57, SMPL_10M}, /* 2.8 : 350ns, 150ns */ | ||
175 | {0x7, 3, 0x58, 0x64, SMPL_10M}, /* 2.5 : 400ns, 200ns */ | ||
176 | {0x8, 3, 0x65, 0x70, SMPL_10M}, /* 2.2 : 450ns, 200ns */ | ||
177 | {0x9, 3, 0x71, 0x7d, SMPL_10M}, /* 2.0 : 500ns, 200ns */ | ||
178 | }; | ||
179 | |||
180 | static nsp32_sync_table nsp32_sync_table_pci[] = { | ||
181 | {0x1, 0, 0x0c, 0x0f, SMPL_40M}, /* 16.6 : 60ns, 30ns */ | ||
182 | {0x2, 0, 0x10, 0x16, SMPL_40M}, /* 11.1 : 90ns, 30ns */ | ||
183 | {0x3, 1, 0x17, 0x1e, SMPL_20M}, /* 8.3 : 120ns, 60ns */ | ||
184 | {0x4, 1, 0x1f, 0x25, SMPL_20M}, /* 6.7 : 150ns, 60ns */ | ||
185 | {0x5, 2, 0x26, 0x2d, SMPL_20M}, /* 5.6 : 180ns, 90ns */ | ||
186 | {0x6, 2, 0x2e, 0x34, SMPL_10M}, /* 4.8 : 210ns, 90ns */ | ||
187 | {0x7, 3, 0x35, 0x3c, SMPL_10M}, /* 4.2 : 240ns, 120ns */ | ||
188 | {0x8, 3, 0x3d, 0x43, SMPL_10M}, /* 3.7 : 270ns, 120ns */ | ||
189 | {0x9, 3, 0x44, 0x4b, SMPL_10M}, /* 3.3 : 300ns, 120ns */ | ||
190 | }; | ||
191 | |||
192 | /* | ||
193 | * function declaration | ||
194 | */ | ||
195 | /* module entry point */ | ||
196 | static int __devinit nsp32_probe (struct pci_dev *, const struct pci_device_id *); | ||
197 | static void __devexit nsp32_remove(struct pci_dev *); | ||
198 | static int __init init_nsp32 (void); | ||
199 | static void __exit exit_nsp32 (void); | ||
200 | |||
201 | /* struct Scsi_Host_Template */ | ||
202 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
203 | static int nsp32_proc_info (struct Scsi_Host *, char *, char **, off_t, int, int); | ||
204 | #else | ||
205 | static int nsp32_proc_info (char *, char **, off_t, int, int, int); | ||
206 | #endif | ||
207 | |||
208 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
209 | static int nsp32_detect (struct pci_dev *pdev); | ||
210 | #else | ||
211 | static int nsp32_detect (Scsi_Host_Template *); | ||
212 | #endif | ||
213 | static int nsp32_queuecommand(struct scsi_cmnd *, | ||
214 | void (*done)(struct scsi_cmnd *)); | ||
215 | static const char *nsp32_info (struct Scsi_Host *); | ||
216 | static int nsp32_release (struct Scsi_Host *); | ||
217 | |||
218 | /* SCSI error handler */ | ||
219 | static int nsp32_eh_abort (struct scsi_cmnd *); | ||
220 | static int nsp32_eh_bus_reset (struct scsi_cmnd *); | ||
221 | static int nsp32_eh_host_reset(struct scsi_cmnd *); | ||
222 | |||
223 | /* generate SCSI message */ | ||
224 | static void nsp32_build_identify(struct scsi_cmnd *); | ||
225 | static void nsp32_build_nop (struct scsi_cmnd *); | ||
226 | static void nsp32_build_reject (struct scsi_cmnd *); | ||
227 | static void nsp32_build_sdtr (struct scsi_cmnd *, unsigned char, unsigned char); | ||
228 | |||
229 | /* SCSI message handler */ | ||
230 | static int nsp32_busfree_occur(struct scsi_cmnd *, unsigned short); | ||
231 | static void nsp32_msgout_occur (struct scsi_cmnd *); | ||
232 | static void nsp32_msgin_occur (struct scsi_cmnd *, unsigned long, unsigned short); | ||
233 | |||
234 | static int nsp32_setup_sg_table (struct scsi_cmnd *); | ||
235 | static int nsp32_selection_autopara(struct scsi_cmnd *); | ||
236 | static int nsp32_selection_autoscsi(struct scsi_cmnd *); | ||
237 | static void nsp32_scsi_done (struct scsi_cmnd *); | ||
238 | static int nsp32_arbitration (struct scsi_cmnd *, unsigned int); | ||
239 | static int nsp32_reselection (struct scsi_cmnd *, unsigned char); | ||
240 | static void nsp32_adjust_busfree (struct scsi_cmnd *, unsigned int); | ||
241 | static void nsp32_restart_autoscsi (struct scsi_cmnd *, unsigned short); | ||
242 | |||
243 | /* SCSI SDTR */ | ||
244 | static void nsp32_analyze_sdtr (struct scsi_cmnd *); | ||
245 | static int nsp32_search_period_entry(nsp32_hw_data *, nsp32_target *, unsigned char); | ||
246 | static void nsp32_set_async (nsp32_hw_data *, nsp32_target *); | ||
247 | static void nsp32_set_max_sync (nsp32_hw_data *, nsp32_target *, unsigned char *, unsigned char *); | ||
248 | static void nsp32_set_sync_entry (nsp32_hw_data *, nsp32_target *, int, unsigned char); | ||
249 | |||
250 | /* SCSI bus status handler */ | ||
251 | static void nsp32_wait_req (nsp32_hw_data *, int); | ||
252 | static void nsp32_wait_sack (nsp32_hw_data *, int); | ||
253 | static void nsp32_sack_assert (nsp32_hw_data *); | ||
254 | static void nsp32_sack_negate (nsp32_hw_data *); | ||
255 | static void nsp32_do_bus_reset(nsp32_hw_data *); | ||
256 | |||
257 | /* hardware interrupt handler */ | ||
258 | static irqreturn_t do_nsp32_isr(int, void *, struct pt_regs *); | ||
259 | |||
260 | /* initialize hardware */ | ||
261 | static int nsp32hw_init(nsp32_hw_data *); | ||
262 | |||
263 | /* EEPROM handler */ | ||
264 | static int nsp32_getprom_param (nsp32_hw_data *); | ||
265 | static int nsp32_getprom_at24 (nsp32_hw_data *); | ||
266 | static int nsp32_getprom_c16 (nsp32_hw_data *); | ||
267 | static void nsp32_prom_start (nsp32_hw_data *); | ||
268 | static void nsp32_prom_stop (nsp32_hw_data *); | ||
269 | static int nsp32_prom_read (nsp32_hw_data *, int); | ||
270 | static int nsp32_prom_read_bit (nsp32_hw_data *); | ||
271 | static void nsp32_prom_write_bit(nsp32_hw_data *, int); | ||
272 | static void nsp32_prom_set (nsp32_hw_data *, int, int); | ||
273 | static int nsp32_prom_get (nsp32_hw_data *, int); | ||
274 | |||
275 | /* debug/warning/info message */ | ||
276 | static void nsp32_message (const char *, int, char *, char *, ...); | ||
277 | #ifdef NSP32_DEBUG | ||
278 | static void nsp32_dmessage(const char *, int, int, char *, ...); | ||
279 | #endif | ||
280 | |||
281 | /* | ||
282 | * max_sectors is currently limited up to 128. | ||
283 | */ | ||
284 | static struct scsi_host_template nsp32_template = { | ||
285 | .proc_name = "nsp32", | ||
286 | .name = "Workbit NinjaSCSI-32Bi/UDE", | ||
287 | .proc_info = nsp32_proc_info, | ||
288 | .info = nsp32_info, | ||
289 | .queuecommand = nsp32_queuecommand, | ||
290 | .can_queue = 1, | ||
291 | .sg_tablesize = NSP32_SG_SIZE, | ||
292 | .max_sectors = 128, | ||
293 | .cmd_per_lun = 1, | ||
294 | .this_id = NSP32_HOST_SCSIID, | ||
295 | .use_clustering = DISABLE_CLUSTERING, | ||
296 | .eh_abort_handler = nsp32_eh_abort, | ||
297 | /* .eh_device_reset_handler = NULL, */ | ||
298 | .eh_bus_reset_handler = nsp32_eh_bus_reset, | ||
299 | .eh_host_reset_handler = nsp32_eh_host_reset, | ||
300 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,74)) | ||
301 | .detect = nsp32_detect, | ||
302 | .release = nsp32_release, | ||
303 | #endif | ||
304 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,2)) | ||
305 | .use_new_eh_code = 1, | ||
306 | #else | ||
307 | /* .highmem_io = 1, */ | ||
308 | #endif | ||
309 | }; | ||
310 | |||
311 | #include "nsp32_io.h" | ||
312 | |||
313 | /*********************************************************************** | ||
314 | * debug, error print | ||
315 | */ | ||
316 | #ifndef NSP32_DEBUG | ||
317 | # define NSP32_DEBUG_MASK 0x000000 | ||
318 | # define nsp32_msg(type, args...) nsp32_message ("", 0, (type), args) | ||
319 | # define nsp32_dbg(mask, args...) /* */ | ||
320 | #else | ||
321 | # define NSP32_DEBUG_MASK 0xffffff | ||
322 | # define nsp32_msg(type, args...) \ | ||
323 | nsp32_message (__FUNCTION__, __LINE__, (type), args) | ||
324 | # define nsp32_dbg(mask, args...) \ | ||
325 | nsp32_dmessage(__FUNCTION__, __LINE__, (mask), args) | ||
326 | #endif | ||
327 | |||
328 | #define NSP32_DEBUG_QUEUECOMMAND BIT(0) | ||
329 | #define NSP32_DEBUG_REGISTER BIT(1) | ||
330 | #define NSP32_DEBUG_AUTOSCSI BIT(2) | ||
331 | #define NSP32_DEBUG_INTR BIT(3) | ||
332 | #define NSP32_DEBUG_SGLIST BIT(4) | ||
333 | #define NSP32_DEBUG_BUSFREE BIT(5) | ||
334 | #define NSP32_DEBUG_CDB_CONTENTS BIT(6) | ||
335 | #define NSP32_DEBUG_RESELECTION BIT(7) | ||
336 | #define NSP32_DEBUG_MSGINOCCUR BIT(8) | ||
337 | #define NSP32_DEBUG_EEPROM BIT(9) | ||
338 | #define NSP32_DEBUG_MSGOUTOCCUR BIT(10) | ||
339 | #define NSP32_DEBUG_BUSRESET BIT(11) | ||
340 | #define NSP32_DEBUG_RESTART BIT(12) | ||
341 | #define NSP32_DEBUG_SYNC BIT(13) | ||
342 | #define NSP32_DEBUG_WAIT BIT(14) | ||
343 | #define NSP32_DEBUG_TARGETFLAG BIT(15) | ||
344 | #define NSP32_DEBUG_PROC BIT(16) | ||
345 | #define NSP32_DEBUG_INIT BIT(17) | ||
346 | #define NSP32_SPECIAL_PRINT_REGISTER BIT(20) | ||
347 | |||
348 | #define NSP32_DEBUG_BUF_LEN 100 | ||
349 | |||
350 | static void nsp32_message(const char *func, int line, char *type, char *fmt, ...) | ||
351 | { | ||
352 | va_list args; | ||
353 | char buf[NSP32_DEBUG_BUF_LEN]; | ||
354 | |||
355 | va_start(args, fmt); | ||
356 | vsnprintf(buf, sizeof(buf), fmt, args); | ||
357 | va_end(args); | ||
358 | |||
359 | #ifndef NSP32_DEBUG | ||
360 | printk("%snsp32: %s\n", type, buf); | ||
361 | #else | ||
362 | printk("%snsp32: %s (%d): %s\n", type, func, line, buf); | ||
363 | #endif | ||
364 | } | ||
365 | |||
366 | #ifdef NSP32_DEBUG | ||
367 | static void nsp32_dmessage(const char *func, int line, int mask, char *fmt, ...) | ||
368 | { | ||
369 | va_list args; | ||
370 | char buf[NSP32_DEBUG_BUF_LEN]; | ||
371 | |||
372 | va_start(args, fmt); | ||
373 | vsnprintf(buf, sizeof(buf), fmt, args); | ||
374 | va_end(args); | ||
375 | |||
376 | if (mask & NSP32_DEBUG_MASK) { | ||
377 | printk("nsp32-debug: 0x%x %s (%d): %s\n", mask, func, line, buf); | ||
378 | } | ||
379 | } | ||
380 | #endif | ||
381 | |||
382 | #ifdef NSP32_DEBUG | ||
383 | # include "nsp32_debug.c" | ||
384 | #else | ||
385 | # define show_command(arg) /* */ | ||
386 | # define show_busphase(arg) /* */ | ||
387 | # define show_autophase(arg) /* */ | ||
388 | #endif | ||
389 | |||
390 | /* | ||
391 | * IDENTIFY Message | ||
392 | */ | ||
393 | static void nsp32_build_identify(struct scsi_cmnd *SCpnt) | ||
394 | { | ||
395 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
396 | int pos = data->msgout_len; | ||
397 | int mode = FALSE; | ||
398 | |||
399 | /* XXX: Auto DiscPriv detection is progressing... */ | ||
400 | if (disc_priv == 0) { | ||
401 | /* mode = TRUE; */ | ||
402 | } | ||
403 | |||
404 | data->msgoutbuf[pos] = IDENTIFY(mode, SCpnt->device->lun); pos++; | ||
405 | |||
406 | data->msgout_len = pos; | ||
407 | } | ||
408 | |||
409 | /* | ||
410 | * SDTR Message Routine | ||
411 | */ | ||
412 | static void nsp32_build_sdtr(struct scsi_cmnd *SCpnt, | ||
413 | unsigned char period, | ||
414 | unsigned char offset) | ||
415 | { | ||
416 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
417 | int pos = data->msgout_len; | ||
418 | |||
419 | data->msgoutbuf[pos] = EXTENDED_MESSAGE; pos++; | ||
420 | data->msgoutbuf[pos] = EXTENDED_SDTR_LEN; pos++; | ||
421 | data->msgoutbuf[pos] = EXTENDED_SDTR; pos++; | ||
422 | data->msgoutbuf[pos] = period; pos++; | ||
423 | data->msgoutbuf[pos] = offset; pos++; | ||
424 | |||
425 | data->msgout_len = pos; | ||
426 | } | ||
427 | |||
428 | /* | ||
429 | * No Operation Message | ||
430 | */ | ||
431 | static void nsp32_build_nop(struct scsi_cmnd *SCpnt) | ||
432 | { | ||
433 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
434 | int pos = data->msgout_len; | ||
435 | |||
436 | if (pos != 0) { | ||
437 | nsp32_msg(KERN_WARNING, | ||
438 | "Some messages are already contained!"); | ||
439 | return; | ||
440 | } | ||
441 | |||
442 | data->msgoutbuf[pos] = NOP; pos++; | ||
443 | data->msgout_len = pos; | ||
444 | } | ||
445 | |||
446 | /* | ||
447 | * Reject Message | ||
448 | */ | ||
449 | static void nsp32_build_reject(struct scsi_cmnd *SCpnt) | ||
450 | { | ||
451 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
452 | int pos = data->msgout_len; | ||
453 | |||
454 | data->msgoutbuf[pos] = MESSAGE_REJECT; pos++; | ||
455 | data->msgout_len = pos; | ||
456 | } | ||
457 | |||
458 | /* | ||
459 | * timer | ||
460 | */ | ||
461 | #if 0 | ||
462 | static void nsp32_start_timer(struct scsi_cmnd *SCpnt, int time) | ||
463 | { | ||
464 | unsigned int base = SCpnt->host->io_port; | ||
465 | |||
466 | nsp32_dbg(NSP32_DEBUG_INTR, "timer=%d", time); | ||
467 | |||
468 | if (time & (~TIMER_CNT_MASK)) { | ||
469 | nsp32_dbg(NSP32_DEBUG_INTR, "timer set overflow"); | ||
470 | } | ||
471 | |||
472 | nsp32_write2(base, TIMER_SET, time & TIMER_CNT_MASK); | ||
473 | } | ||
474 | #endif | ||
475 | |||
476 | |||
477 | /* | ||
478 | * set SCSI command and other parameter to asic, and start selection phase | ||
479 | */ | ||
480 | static int nsp32_selection_autopara(struct scsi_cmnd *SCpnt) | ||
481 | { | ||
482 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
483 | unsigned int base = SCpnt->device->host->io_port; | ||
484 | unsigned int host_id = SCpnt->device->host->this_id; | ||
485 | unsigned char target = SCpnt->device->id; | ||
486 | nsp32_autoparam *param = data->autoparam; | ||
487 | unsigned char phase; | ||
488 | int i, ret; | ||
489 | unsigned int msgout; | ||
490 | u16_le s; | ||
491 | |||
492 | nsp32_dbg(NSP32_DEBUG_AUTOSCSI, "in"); | ||
493 | |||
494 | /* | ||
495 | * check bus free | ||
496 | */ | ||
497 | phase = nsp32_read1(base, SCSI_BUS_MONITOR); | ||
498 | if (phase != BUSMON_BUS_FREE) { | ||
499 | nsp32_msg(KERN_WARNING, "bus busy"); | ||
500 | show_busphase(phase & BUSMON_PHASE_MASK); | ||
501 | SCpnt->result = DID_BUS_BUSY << 16; | ||
502 | return FALSE; | ||
503 | } | ||
504 | |||
505 | /* | ||
506 | * message out | ||
507 | * | ||
508 | * Note: If the range of msgout_len is 1 - 3, fill scsi_msgout. | ||
509 | * over 3 messages needs another routine. | ||
510 | */ | ||
511 | if (data->msgout_len == 0) { | ||
512 | nsp32_msg(KERN_ERR, "SCSI MsgOut without any message!"); | ||
513 | SCpnt->result = DID_ERROR << 16; | ||
514 | return FALSE; | ||
515 | } else if (data->msgout_len > 0 && data->msgout_len <= 3) { | ||
516 | msgout = 0; | ||
517 | for (i = 0; i < data->msgout_len; i++) { | ||
518 | /* | ||
519 | * the sending order of the message is: | ||
520 | * MCNT 3: MSG#0 -> MSG#1 -> MSG#2 | ||
521 | * MCNT 2: MSG#1 -> MSG#2 | ||
522 | * MCNT 1: MSG#2 | ||
523 | */ | ||
524 | msgout >>= 8; | ||
525 | msgout |= ((unsigned int)(data->msgoutbuf[i]) << 24); | ||
526 | } | ||
527 | msgout |= MV_VALID; /* MV valid */ | ||
528 | msgout |= (unsigned int)data->msgout_len; /* len */ | ||
529 | } else { | ||
530 | /* data->msgout_len > 3 */ | ||
531 | msgout = 0; | ||
532 | } | ||
533 | |||
534 | // nsp_dbg(NSP32_DEBUG_AUTOSCSI, "sel time out=0x%x\n", nsp32_read2(base, SEL_TIME_OUT)); | ||
535 | // nsp32_write2(base, SEL_TIME_OUT, SEL_TIMEOUT_TIME); | ||
536 | |||
537 | /* | ||
538 | * setup asic parameter | ||
539 | */ | ||
540 | memset(param, 0, sizeof(nsp32_autoparam)); | ||
541 | |||
542 | /* cdb */ | ||
543 | for (i = 0; i < SCpnt->cmd_len; i++) { | ||
544 | param->cdb[4 * i] = SCpnt->cmnd[i]; | ||
545 | } | ||
546 | |||
547 | /* outgoing messages */ | ||
548 | param->msgout = cpu_to_le32(msgout); | ||
549 | |||
550 | /* syncreg, ackwidth, target id, SREQ sampling rate */ | ||
551 | param->syncreg = data->cur_target->syncreg; | ||
552 | param->ackwidth = data->cur_target->ackwidth; | ||
553 | param->target_id = BIT(host_id) | BIT(target); | ||
554 | param->sample_reg = data->cur_target->sample_reg; | ||
555 | |||
556 | // nsp32_dbg(NSP32_DEBUG_AUTOSCSI, "sample rate=0x%x\n", data->cur_target->sample_reg); | ||
557 | |||
558 | /* command control */ | ||
559 | param->command_control = cpu_to_le16(CLEAR_CDB_FIFO_POINTER | | ||
560 | AUTOSCSI_START | | ||
561 | AUTO_MSGIN_00_OR_04 | | ||
562 | AUTO_MSGIN_02 | | ||
563 | AUTO_ATN ); | ||
564 | |||
565 | |||
566 | /* transfer control */ | ||
567 | s = 0; | ||
568 | switch (data->trans_method) { | ||
569 | case NSP32_TRANSFER_BUSMASTER: | ||
570 | s |= BM_START; | ||
571 | break; | ||
572 | case NSP32_TRANSFER_MMIO: | ||
573 | s |= CB_MMIO_MODE; | ||
574 | break; | ||
575 | case NSP32_TRANSFER_PIO: | ||
576 | s |= CB_IO_MODE; | ||
577 | break; | ||
578 | default: | ||
579 | nsp32_msg(KERN_ERR, "unknown trans_method"); | ||
580 | break; | ||
581 | } | ||
582 | /* | ||
583 | * OR-ed BLIEND_MODE, FIFO intr is decreased, instead of PCI bus waits. | ||
584 | * For bus master transfer, it's taken off. | ||
585 | */ | ||
586 | s |= (TRANSFER_GO | ALL_COUNTER_CLR); | ||
587 | param->transfer_control = cpu_to_le16(s); | ||
588 | |||
589 | /* sg table addr */ | ||
590 | param->sgt_pointer = cpu_to_le32(data->cur_lunt->sglun_paddr); | ||
591 | |||
592 | /* | ||
593 | * transfer parameter to ASIC | ||
594 | */ | ||
595 | nsp32_write4(base, SGT_ADR, data->auto_paddr); | ||
596 | nsp32_write2(base, COMMAND_CONTROL, CLEAR_CDB_FIFO_POINTER | | ||
597 | AUTO_PARAMETER ); | ||
598 | |||
599 | /* | ||
600 | * Check arbitration | ||
601 | */ | ||
602 | ret = nsp32_arbitration(SCpnt, base); | ||
603 | |||
604 | return ret; | ||
605 | } | ||
606 | |||
607 | |||
608 | /* | ||
609 | * Selection with AUTO SCSI (without AUTO PARAMETER) | ||
610 | */ | ||
611 | static int nsp32_selection_autoscsi(struct scsi_cmnd *SCpnt) | ||
612 | { | ||
613 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
614 | unsigned int base = SCpnt->device->host->io_port; | ||
615 | unsigned int host_id = SCpnt->device->host->this_id; | ||
616 | unsigned char target = SCpnt->device->id; | ||
617 | unsigned char phase; | ||
618 | int status; | ||
619 | unsigned short command = 0; | ||
620 | unsigned int msgout = 0; | ||
621 | unsigned short execph; | ||
622 | int i; | ||
623 | |||
624 | nsp32_dbg(NSP32_DEBUG_AUTOSCSI, "in"); | ||
625 | |||
626 | /* | ||
627 | * IRQ disable | ||
628 | */ | ||
629 | nsp32_write2(base, IRQ_CONTROL, IRQ_CONTROL_ALL_IRQ_MASK); | ||
630 | |||
631 | /* | ||
632 | * check bus line | ||
633 | */ | ||
634 | phase = nsp32_read1(base, SCSI_BUS_MONITOR); | ||
635 | if(((phase & BUSMON_BSY) == 1) || (phase & BUSMON_SEL) == 1) { | ||
636 | nsp32_msg(KERN_WARNING, "bus busy"); | ||
637 | SCpnt->result = DID_BUS_BUSY << 16; | ||
638 | status = 1; | ||
639 | goto out; | ||
640 | } | ||
641 | |||
642 | /* | ||
643 | * clear execph | ||
644 | */ | ||
645 | execph = nsp32_read2(base, SCSI_EXECUTE_PHASE); | ||
646 | |||
647 | /* | ||
648 | * clear FIFO counter to set CDBs | ||
649 | */ | ||
650 | nsp32_write2(base, COMMAND_CONTROL, CLEAR_CDB_FIFO_POINTER); | ||
651 | |||
652 | /* | ||
653 | * set CDB0 - CDB15 | ||
654 | */ | ||
655 | for (i = 0; i < SCpnt->cmd_len; i++) { | ||
656 | nsp32_write1(base, COMMAND_DATA, SCpnt->cmnd[i]); | ||
657 | } | ||
658 | nsp32_dbg(NSP32_DEBUG_CDB_CONTENTS, "CDB[0]=[0x%x]", SCpnt->cmnd[0]); | ||
659 | |||
660 | /* | ||
661 | * set SCSIOUT LATCH(initiator)/TARGET(target) (OR-ed) ID | ||
662 | */ | ||
663 | nsp32_write1(base, SCSI_OUT_LATCH_TARGET_ID, BIT(host_id) | BIT(target)); | ||
664 | |||
665 | /* | ||
666 | * set SCSI MSGOUT REG | ||
667 | * | ||
668 | * Note: If the range of msgout_len is 1 - 3, fill scsi_msgout. | ||
669 | * over 3 messages needs another routine. | ||
670 | */ | ||
671 | if (data->msgout_len == 0) { | ||
672 | nsp32_msg(KERN_ERR, "SCSI MsgOut without any message!"); | ||
673 | SCpnt->result = DID_ERROR << 16; | ||
674 | status = 1; | ||
675 | goto out; | ||
676 | } else if (data->msgout_len > 0 && data->msgout_len <= 3) { | ||
677 | msgout = 0; | ||
678 | for (i = 0; i < data->msgout_len; i++) { | ||
679 | /* | ||
680 | * the sending order of the message is: | ||
681 | * MCNT 3: MSG#0 -> MSG#1 -> MSG#2 | ||
682 | * MCNT 2: MSG#1 -> MSG#2 | ||
683 | * MCNT 1: MSG#2 | ||
684 | */ | ||
685 | msgout >>= 8; | ||
686 | msgout |= ((unsigned int)(data->msgoutbuf[i]) << 24); | ||
687 | } | ||
688 | msgout |= MV_VALID; /* MV valid */ | ||
689 | msgout |= (unsigned int)data->msgout_len; /* len */ | ||
690 | nsp32_write4(base, SCSI_MSG_OUT, msgout); | ||
691 | } else { | ||
692 | /* data->msgout_len > 3 */ | ||
693 | nsp32_write4(base, SCSI_MSG_OUT, 0); | ||
694 | } | ||
695 | |||
696 | /* | ||
697 | * set selection timeout(= 250ms) | ||
698 | */ | ||
699 | nsp32_write2(base, SEL_TIME_OUT, SEL_TIMEOUT_TIME); | ||
700 | |||
701 | /* | ||
702 | * set SREQ hazard killer sampling rate | ||
703 | * | ||
704 | * TODO: sample_rate (BASE+0F) is 0 when internal clock = 40MHz. | ||
705 | * check other internal clock! | ||
706 | */ | ||
707 | nsp32_write1(base, SREQ_SMPL_RATE, data->cur_target->sample_reg); | ||
708 | |||
709 | /* | ||
710 | * clear Arbit | ||
711 | */ | ||
712 | nsp32_write1(base, SET_ARBIT, ARBIT_CLEAR); | ||
713 | |||
714 | /* | ||
715 | * set SYNCREG | ||
716 | * Don't set BM_START_ADR before setting this register. | ||
717 | */ | ||
718 | nsp32_write1(base, SYNC_REG, data->cur_target->syncreg); | ||
719 | |||
720 | /* | ||
721 | * set ACKWIDTH | ||
722 | */ | ||
723 | nsp32_write1(base, ACK_WIDTH, data->cur_target->ackwidth); | ||
724 | |||
725 | nsp32_dbg(NSP32_DEBUG_AUTOSCSI, | ||
726 | "syncreg=0x%x, ackwidth=0x%x, sgtpaddr=0x%x, id=0x%x", | ||
727 | nsp32_read1(base, SYNC_REG), nsp32_read1(base, ACK_WIDTH), | ||
728 | nsp32_read4(base, SGT_ADR), nsp32_read1(base, SCSI_OUT_LATCH_TARGET_ID)); | ||
729 | nsp32_dbg(NSP32_DEBUG_AUTOSCSI, "msgout_len=%d, msgout=0x%x", | ||
730 | data->msgout_len, msgout); | ||
731 | |||
732 | /* | ||
733 | * set SGT ADDR (physical address) | ||
734 | */ | ||
735 | nsp32_write4(base, SGT_ADR, data->cur_lunt->sglun_paddr); | ||
736 | |||
737 | /* | ||
738 | * set TRANSFER CONTROL REG | ||
739 | */ | ||
740 | command = 0; | ||
741 | command |= (TRANSFER_GO | ALL_COUNTER_CLR); | ||
742 | if (data->trans_method & NSP32_TRANSFER_BUSMASTER) { | ||
743 | if (SCpnt->request_bufflen > 0) { | ||
744 | command |= BM_START; | ||
745 | } | ||
746 | } else if (data->trans_method & NSP32_TRANSFER_MMIO) { | ||
747 | command |= CB_MMIO_MODE; | ||
748 | } else if (data->trans_method & NSP32_TRANSFER_PIO) { | ||
749 | command |= CB_IO_MODE; | ||
750 | } | ||
751 | nsp32_write2(base, TRANSFER_CONTROL, command); | ||
752 | |||
753 | /* | ||
754 | * start AUTO SCSI, kick off arbitration | ||
755 | */ | ||
756 | command = (CLEAR_CDB_FIFO_POINTER | | ||
757 | AUTOSCSI_START | | ||
758 | AUTO_MSGIN_00_OR_04 | | ||
759 | AUTO_MSGIN_02 | | ||
760 | AUTO_ATN ); | ||
761 | nsp32_write2(base, COMMAND_CONTROL, command); | ||
762 | |||
763 | /* | ||
764 | * Check arbitration | ||
765 | */ | ||
766 | status = nsp32_arbitration(SCpnt, base); | ||
767 | |||
768 | out: | ||
769 | /* | ||
770 | * IRQ enable | ||
771 | */ | ||
772 | nsp32_write2(base, IRQ_CONTROL, 0); | ||
773 | |||
774 | return status; | ||
775 | } | ||
776 | |||
777 | |||
778 | /* | ||
779 | * Arbitration Status Check | ||
780 | * | ||
781 | * Note: Arbitration counter is waited during ARBIT_GO is not lifting. | ||
782 | * Using udelay(1) consumes CPU time and system time, but | ||
783 | * arbitration delay time is defined minimal 2.4us in SCSI | ||
784 | * specification, thus udelay works as coarse grained wait timer. | ||
785 | */ | ||
786 | static int nsp32_arbitration(struct scsi_cmnd *SCpnt, unsigned int base) | ||
787 | { | ||
788 | unsigned char arbit; | ||
789 | int status = TRUE; | ||
790 | int time = 0; | ||
791 | |||
792 | do { | ||
793 | arbit = nsp32_read1(base, ARBIT_STATUS); | ||
794 | time++; | ||
795 | } while ((arbit & (ARBIT_WIN | ARBIT_FAIL)) == 0 && | ||
796 | (time <= ARBIT_TIMEOUT_TIME)); | ||
797 | |||
798 | nsp32_dbg(NSP32_DEBUG_AUTOSCSI, | ||
799 | "arbit: 0x%x, delay time: %d", arbit, time); | ||
800 | |||
801 | if (arbit & ARBIT_WIN) { | ||
802 | /* Arbitration succeeded */ | ||
803 | SCpnt->result = DID_OK << 16; | ||
804 | nsp32_index_write1(base, EXT_PORT, LED_ON); /* PCI LED on */ | ||
805 | } else if (arbit & ARBIT_FAIL) { | ||
806 | /* Arbitration failed */ | ||
807 | SCpnt->result = DID_BUS_BUSY << 16; | ||
808 | status = FALSE; | ||
809 | } else { | ||
810 | /* | ||
811 | * unknown error or ARBIT_GO timeout, | ||
812 | * something lock up! guess no connection. | ||
813 | */ | ||
814 | nsp32_dbg(NSP32_DEBUG_AUTOSCSI, "arbit timeout"); | ||
815 | SCpnt->result = DID_NO_CONNECT << 16; | ||
816 | status = FALSE; | ||
817 | } | ||
818 | |||
819 | /* | ||
820 | * clear Arbit | ||
821 | */ | ||
822 | nsp32_write1(base, SET_ARBIT, ARBIT_CLEAR); | ||
823 | |||
824 | return status; | ||
825 | } | ||
826 | |||
827 | |||
828 | /* | ||
829 | * reselection | ||
830 | * | ||
831 | * Note: This reselection routine is called from msgin_occur, | ||
832 | * reselection target id&lun must be already set. | ||
833 | * SCSI-2 says IDENTIFY implies RESTORE_POINTER operation. | ||
834 | */ | ||
835 | static int nsp32_reselection(struct scsi_cmnd *SCpnt, unsigned char newlun) | ||
836 | { | ||
837 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
838 | unsigned int host_id = SCpnt->device->host->this_id; | ||
839 | unsigned int base = SCpnt->device->host->io_port; | ||
840 | unsigned char tmpid, newid; | ||
841 | |||
842 | nsp32_dbg(NSP32_DEBUG_RESELECTION, "enter"); | ||
843 | |||
844 | /* | ||
845 | * calculate reselected SCSI ID | ||
846 | */ | ||
847 | tmpid = nsp32_read1(base, RESELECT_ID); | ||
848 | tmpid &= (~BIT(host_id)); | ||
849 | newid = 0; | ||
850 | while (tmpid) { | ||
851 | if (tmpid & 1) { | ||
852 | break; | ||
853 | } | ||
854 | tmpid >>= 1; | ||
855 | newid++; | ||
856 | } | ||
857 | |||
858 | /* | ||
859 | * If reselected New ID:LUN is not existed | ||
860 | * or current nexus is not existed, unexpected | ||
861 | * reselection is occurred. Send reject message. | ||
862 | */ | ||
863 | if (newid >= ARRAY_SIZE(data->lunt) || newlun >= ARRAY_SIZE(data->lunt[0])) { | ||
864 | nsp32_msg(KERN_WARNING, "unknown id/lun"); | ||
865 | return FALSE; | ||
866 | } else if(data->lunt[newid][newlun].SCpnt == NULL) { | ||
867 | nsp32_msg(KERN_WARNING, "no SCSI command is processing"); | ||
868 | return FALSE; | ||
869 | } | ||
870 | |||
871 | data->cur_id = newid; | ||
872 | data->cur_lun = newlun; | ||
873 | data->cur_target = &(data->target[newid]); | ||
874 | data->cur_lunt = &(data->lunt[newid][newlun]); | ||
875 | |||
876 | /* reset SACK/SavedACK counter (or ALL clear?) */ | ||
877 | nsp32_write4(base, CLR_COUNTER, CLRCOUNTER_ALLMASK); | ||
878 | |||
879 | return TRUE; | ||
880 | } | ||
881 | |||
882 | |||
883 | /* | ||
884 | * nsp32_setup_sg_table - build scatter gather list for transfer data | ||
885 | * with bus master. | ||
886 | * | ||
887 | * Note: NinjaSCSI-32Bi/UDE bus master can not transfer over 64KB at a time. | ||
888 | */ | ||
889 | static int nsp32_setup_sg_table(struct scsi_cmnd *SCpnt) | ||
890 | { | ||
891 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
892 | struct scatterlist *sgl; | ||
893 | nsp32_sgtable *sgt = data->cur_lunt->sglun->sgt; | ||
894 | int num, i; | ||
895 | u32_le l; | ||
896 | |||
897 | if (SCpnt->request_bufflen == 0) { | ||
898 | return TRUE; | ||
899 | } | ||
900 | |||
901 | if (sgt == NULL) { | ||
902 | nsp32_dbg(NSP32_DEBUG_SGLIST, "SGT == null"); | ||
903 | return FALSE; | ||
904 | } | ||
905 | |||
906 | if (SCpnt->use_sg) { | ||
907 | sgl = (struct scatterlist *)SCpnt->request_buffer; | ||
908 | num = pci_map_sg(data->Pci, sgl, SCpnt->use_sg, | ||
909 | SCpnt->sc_data_direction); | ||
910 | for (i = 0; i < num; i++) { | ||
911 | /* | ||
912 | * Build nsp32_sglist, substitute sg dma addresses. | ||
913 | */ | ||
914 | sgt[i].addr = cpu_to_le32(sg_dma_address(sgl)); | ||
915 | sgt[i].len = cpu_to_le32(sg_dma_len(sgl)); | ||
916 | sgl++; | ||
917 | |||
918 | if (le32_to_cpu(sgt[i].len) > 0x10000) { | ||
919 | nsp32_msg(KERN_ERR, | ||
920 | "can't transfer over 64KB at a time, size=0x%lx", le32_to_cpu(sgt[i].len)); | ||
921 | return FALSE; | ||
922 | } | ||
923 | nsp32_dbg(NSP32_DEBUG_SGLIST, | ||
924 | "num 0x%x : addr 0x%lx len 0x%lx", | ||
925 | i, | ||
926 | le32_to_cpu(sgt[i].addr), | ||
927 | le32_to_cpu(sgt[i].len )); | ||
928 | } | ||
929 | |||
930 | /* set end mark */ | ||
931 | l = le32_to_cpu(sgt[num-1].len); | ||
932 | sgt[num-1].len = cpu_to_le32(l | SGTEND); | ||
933 | |||
934 | } else { | ||
935 | SCpnt->SCp.have_data_in = pci_map_single(data->Pci, | ||
936 | SCpnt->request_buffer, SCpnt->request_bufflen, | ||
937 | SCpnt->sc_data_direction); | ||
938 | |||
939 | sgt[0].addr = cpu_to_le32(SCpnt->SCp.have_data_in); | ||
940 | sgt[0].len = cpu_to_le32(SCpnt->request_bufflen | SGTEND); /* set end mark */ | ||
941 | |||
942 | if (SCpnt->request_bufflen > 0x10000) { | ||
943 | nsp32_msg(KERN_ERR, | ||
944 | "can't transfer over 64KB at a time, size=0x%lx", SCpnt->request_bufflen); | ||
945 | return FALSE; | ||
946 | } | ||
947 | nsp32_dbg(NSP32_DEBUG_SGLIST, "single : addr 0x%lx len=0x%lx", | ||
948 | le32_to_cpu(sgt[0].addr), | ||
949 | le32_to_cpu(sgt[0].len )); | ||
950 | } | ||
951 | |||
952 | return TRUE; | ||
953 | } | ||
954 | |||
955 | static int nsp32_queuecommand(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) | ||
956 | { | ||
957 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
958 | nsp32_target *target; | ||
959 | nsp32_lunt *cur_lunt; | ||
960 | int ret; | ||
961 | |||
962 | nsp32_dbg(NSP32_DEBUG_QUEUECOMMAND, | ||
963 | "enter. target: 0x%x LUN: 0x%x cmnd: 0x%x cmndlen: 0x%x " | ||
964 | "use_sg: 0x%x reqbuf: 0x%lx reqlen: 0x%x", | ||
965 | SCpnt->device->id, SCpnt->device->lun, SCpnt->cmnd[0], SCpnt->cmd_len, | ||
966 | SCpnt->use_sg, SCpnt->request_buffer, SCpnt->request_bufflen); | ||
967 | |||
968 | if (data->CurrentSC != NULL) { | ||
969 | nsp32_msg(KERN_ERR, "Currentsc != NULL. Cancel this command request"); | ||
970 | data->CurrentSC = NULL; | ||
971 | SCpnt->result = DID_NO_CONNECT << 16; | ||
972 | done(SCpnt); | ||
973 | return 0; | ||
974 | } | ||
975 | |||
976 | /* check target ID is not same as this initiator ID */ | ||
977 | if (SCpnt->device->id == SCpnt->device->host->this_id) { | ||
978 | nsp32_dbg(NSP32_DEBUG_QUEUECOMMAND, "terget==host???"); | ||
979 | SCpnt->result = DID_BAD_TARGET << 16; | ||
980 | done(SCpnt); | ||
981 | return 0; | ||
982 | } | ||
983 | |||
984 | /* check target LUN is allowable value */ | ||
985 | if (SCpnt->device->lun >= MAX_LUN) { | ||
986 | nsp32_dbg(NSP32_DEBUG_QUEUECOMMAND, "no more lun"); | ||
987 | SCpnt->result = DID_BAD_TARGET << 16; | ||
988 | done(SCpnt); | ||
989 | return 0; | ||
990 | } | ||
991 | |||
992 | show_command(SCpnt); | ||
993 | |||
994 | SCpnt->scsi_done = done; | ||
995 | data->CurrentSC = SCpnt; | ||
996 | SCpnt->SCp.Status = CHECK_CONDITION; | ||
997 | SCpnt->SCp.Message = 0; | ||
998 | SCpnt->resid = SCpnt->request_bufflen; | ||
999 | |||
1000 | SCpnt->SCp.ptr = (char *) SCpnt->request_buffer; | ||
1001 | SCpnt->SCp.this_residual = SCpnt->request_bufflen; | ||
1002 | SCpnt->SCp.buffer = NULL; | ||
1003 | SCpnt->SCp.buffers_residual = 0; | ||
1004 | |||
1005 | /* initialize data */ | ||
1006 | data->msgout_len = 0; | ||
1007 | data->msgin_len = 0; | ||
1008 | cur_lunt = &(data->lunt[SCpnt->device->id][SCpnt->device->lun]); | ||
1009 | cur_lunt->SCpnt = SCpnt; | ||
1010 | cur_lunt->save_datp = 0; | ||
1011 | cur_lunt->msgin03 = FALSE; | ||
1012 | data->cur_lunt = cur_lunt; | ||
1013 | data->cur_id = SCpnt->device->id; | ||
1014 | data->cur_lun = SCpnt->device->lun; | ||
1015 | |||
1016 | ret = nsp32_setup_sg_table(SCpnt); | ||
1017 | if (ret == FALSE) { | ||
1018 | nsp32_msg(KERN_ERR, "SGT fail"); | ||
1019 | SCpnt->result = DID_ERROR << 16; | ||
1020 | nsp32_scsi_done(SCpnt); | ||
1021 | return 0; | ||
1022 | } | ||
1023 | |||
1024 | /* Build IDENTIFY */ | ||
1025 | nsp32_build_identify(SCpnt); | ||
1026 | |||
1027 | /* | ||
1028 | * If target is the first time to transfer after the reset | ||
1029 | * (target don't have SDTR_DONE and SDTR_INITIATOR), sync | ||
1030 | * message SDTR is needed to do synchronous transfer. | ||
1031 | */ | ||
1032 | target = &data->target[SCpnt->device->id]; | ||
1033 | data->cur_target = target; | ||
1034 | |||
1035 | if (!(target->sync_flag & (SDTR_DONE | SDTR_INITIATOR | SDTR_TARGET))) { | ||
1036 | unsigned char period, offset; | ||
1037 | |||
1038 | if (trans_mode != ASYNC_MODE) { | ||
1039 | nsp32_set_max_sync(data, target, &period, &offset); | ||
1040 | nsp32_build_sdtr(SCpnt, period, offset); | ||
1041 | target->sync_flag |= SDTR_INITIATOR; | ||
1042 | } else { | ||
1043 | nsp32_set_async(data, target); | ||
1044 | target->sync_flag |= SDTR_DONE; | ||
1045 | } | ||
1046 | |||
1047 | nsp32_dbg(NSP32_DEBUG_QUEUECOMMAND, | ||
1048 | "SDTR: entry: %d start_period: 0x%x offset: 0x%x\n", | ||
1049 | target->limit_entry, period, offset); | ||
1050 | } else if (target->sync_flag & SDTR_INITIATOR) { | ||
1051 | /* | ||
1052 | * It was negotiating SDTR with target, sending from the | ||
1053 | * initiator, but there are no chance to remove this flag. | ||
1054 | * Set async because we don't get proper negotiation. | ||
1055 | */ | ||
1056 | nsp32_set_async(data, target); | ||
1057 | target->sync_flag &= ~SDTR_INITIATOR; | ||
1058 | target->sync_flag |= SDTR_DONE; | ||
1059 | |||
1060 | nsp32_dbg(NSP32_DEBUG_QUEUECOMMAND, | ||
1061 | "SDTR_INITIATOR: fall back to async"); | ||
1062 | } else if (target->sync_flag & SDTR_TARGET) { | ||
1063 | /* | ||
1064 | * It was negotiating SDTR with target, sending from target, | ||
1065 | * but there are no chance to remove this flag. Set async | ||
1066 | * because we don't get proper negotiation. | ||
1067 | */ | ||
1068 | nsp32_set_async(data, target); | ||
1069 | target->sync_flag &= ~SDTR_TARGET; | ||
1070 | target->sync_flag |= SDTR_DONE; | ||
1071 | |||
1072 | nsp32_dbg(NSP32_DEBUG_QUEUECOMMAND, | ||
1073 | "Unknown SDTR from target is reached, fall back to async."); | ||
1074 | } | ||
1075 | |||
1076 | nsp32_dbg(NSP32_DEBUG_TARGETFLAG, | ||
1077 | "target: %d sync_flag: 0x%x syncreg: 0x%x ackwidth: 0x%x", | ||
1078 | SCpnt->device->id, target->sync_flag, target->syncreg, | ||
1079 | target->ackwidth); | ||
1080 | |||
1081 | /* Selection */ | ||
1082 | if (auto_param == 0) { | ||
1083 | ret = nsp32_selection_autopara(SCpnt); | ||
1084 | } else { | ||
1085 | ret = nsp32_selection_autoscsi(SCpnt); | ||
1086 | } | ||
1087 | |||
1088 | if (ret != TRUE) { | ||
1089 | nsp32_dbg(NSP32_DEBUG_QUEUECOMMAND, "selection fail"); | ||
1090 | nsp32_scsi_done(SCpnt); | ||
1091 | } | ||
1092 | |||
1093 | return 0; | ||
1094 | } | ||
1095 | |||
1096 | /* initialize asic */ | ||
1097 | static int nsp32hw_init(nsp32_hw_data *data) | ||
1098 | { | ||
1099 | unsigned int base = data->BaseAddress; | ||
1100 | unsigned short irq_stat; | ||
1101 | unsigned long lc_reg; | ||
1102 | unsigned char power; | ||
1103 | |||
1104 | lc_reg = nsp32_index_read4(base, CFG_LATE_CACHE); | ||
1105 | if ((lc_reg & 0xff00) == 0) { | ||
1106 | lc_reg |= (0x20 << 8); | ||
1107 | nsp32_index_write2(base, CFG_LATE_CACHE, lc_reg & 0xffff); | ||
1108 | } | ||
1109 | |||
1110 | nsp32_write2(base, IRQ_CONTROL, IRQ_CONTROL_ALL_IRQ_MASK); | ||
1111 | nsp32_write2(base, TRANSFER_CONTROL, 0); | ||
1112 | nsp32_write4(base, BM_CNT, 0); | ||
1113 | nsp32_write2(base, SCSI_EXECUTE_PHASE, 0); | ||
1114 | |||
1115 | do { | ||
1116 | irq_stat = nsp32_read2(base, IRQ_STATUS); | ||
1117 | nsp32_dbg(NSP32_DEBUG_INIT, "irq_stat 0x%x", irq_stat); | ||
1118 | } while (irq_stat & IRQSTATUS_ANY_IRQ); | ||
1119 | |||
1120 | /* | ||
1121 | * Fill FIFO_FULL_SHLD, FIFO_EMPTY_SHLD. Below parameter is | ||
1122 | * designated by specification. | ||
1123 | */ | ||
1124 | if ((data->trans_method & NSP32_TRANSFER_PIO) || | ||
1125 | (data->trans_method & NSP32_TRANSFER_MMIO)) { | ||
1126 | nsp32_index_write1(base, FIFO_FULL_SHLD_COUNT, 0x40); | ||
1127 | nsp32_index_write1(base, FIFO_EMPTY_SHLD_COUNT, 0x40); | ||
1128 | } else if (data->trans_method & NSP32_TRANSFER_BUSMASTER) { | ||
1129 | nsp32_index_write1(base, FIFO_FULL_SHLD_COUNT, 0x10); | ||
1130 | nsp32_index_write1(base, FIFO_EMPTY_SHLD_COUNT, 0x60); | ||
1131 | } else { | ||
1132 | nsp32_dbg(NSP32_DEBUG_INIT, "unknown transfer mode"); | ||
1133 | } | ||
1134 | |||
1135 | nsp32_dbg(NSP32_DEBUG_INIT, "full 0x%x emp 0x%x", | ||
1136 | nsp32_index_read1(base, FIFO_FULL_SHLD_COUNT), | ||
1137 | nsp32_index_read1(base, FIFO_EMPTY_SHLD_COUNT)); | ||
1138 | |||
1139 | nsp32_index_write1(base, CLOCK_DIV, data->clock); | ||
1140 | nsp32_index_write1(base, BM_CYCLE, MEMRD_CMD1 | SGT_AUTO_PARA_MEMED_CMD); | ||
1141 | nsp32_write1(base, PARITY_CONTROL, 0); /* parity check is disable */ | ||
1142 | |||
1143 | /* | ||
1144 | * initialize MISC_WRRD register | ||
1145 | * | ||
1146 | * Note: Designated parameters is obeyed as following: | ||
1147 | * MISC_SCSI_DIRECTION_DETECTOR_SELECT: It must be set. | ||
1148 | * MISC_MASTER_TERMINATION_SELECT: It must be set. | ||
1149 | * MISC_BMREQ_NEGATE_TIMING_SEL: It should be set. | ||
1150 | * MISC_AUTOSEL_TIMING_SEL: It should be set. | ||
1151 | * MISC_BMSTOP_CHANGE2_NONDATA_PHASE: It should be set. | ||
1152 | * MISC_DELAYED_BMSTART: It's selected for safety. | ||
1153 | * | ||
1154 | * Note: If MISC_BMSTOP_CHANGE2_NONDATA_PHASE is set, then | ||
1155 | * we have to set TRANSFERCONTROL_BM_START as 0 and set | ||
1156 | * appropriate value before restarting bus master transfer. | ||
1157 | */ | ||
1158 | nsp32_index_write2(base, MISC_WR, | ||
1159 | (SCSI_DIRECTION_DETECTOR_SELECT | | ||
1160 | DELAYED_BMSTART | | ||
1161 | MASTER_TERMINATION_SELECT | | ||
1162 | BMREQ_NEGATE_TIMING_SEL | | ||
1163 | AUTOSEL_TIMING_SEL | | ||
1164 | BMSTOP_CHANGE2_NONDATA_PHASE)); | ||
1165 | |||
1166 | nsp32_index_write1(base, TERM_PWR_CONTROL, 0); | ||
1167 | power = nsp32_index_read1(base, TERM_PWR_CONTROL); | ||
1168 | if (!(power & SENSE)) { | ||
1169 | nsp32_msg(KERN_INFO, "term power on"); | ||
1170 | nsp32_index_write1(base, TERM_PWR_CONTROL, BPWR); | ||
1171 | } | ||
1172 | |||
1173 | nsp32_write2(base, TIMER_SET, TIMER_STOP); | ||
1174 | nsp32_write2(base, TIMER_SET, TIMER_STOP); /* Required 2 times */ | ||
1175 | |||
1176 | nsp32_write1(base, SYNC_REG, 0); | ||
1177 | nsp32_write1(base, ACK_WIDTH, 0); | ||
1178 | nsp32_write2(base, SEL_TIME_OUT, SEL_TIMEOUT_TIME); | ||
1179 | |||
1180 | /* | ||
1181 | * enable to select designated IRQ (except for | ||
1182 | * IRQSELECT_SERR, IRQSELECT_PERR, IRQSELECT_BMCNTERR) | ||
1183 | */ | ||
1184 | nsp32_index_write2(base, IRQ_SELECT, IRQSELECT_TIMER_IRQ | | ||
1185 | IRQSELECT_SCSIRESET_IRQ | | ||
1186 | IRQSELECT_FIFO_SHLD_IRQ | | ||
1187 | IRQSELECT_RESELECT_IRQ | | ||
1188 | IRQSELECT_PHASE_CHANGE_IRQ | | ||
1189 | IRQSELECT_AUTO_SCSI_SEQ_IRQ | | ||
1190 | // IRQSELECT_BMCNTERR_IRQ | | ||
1191 | IRQSELECT_TARGET_ABORT_IRQ | | ||
1192 | IRQSELECT_MASTER_ABORT_IRQ ); | ||
1193 | nsp32_write2(base, IRQ_CONTROL, 0); | ||
1194 | |||
1195 | /* PCI LED off */ | ||
1196 | nsp32_index_write1(base, EXT_PORT_DDR, LED_OFF); | ||
1197 | nsp32_index_write1(base, EXT_PORT, LED_OFF); | ||
1198 | |||
1199 | return TRUE; | ||
1200 | } | ||
1201 | |||
1202 | |||
1203 | /* interrupt routine */ | ||
1204 | static irqreturn_t do_nsp32_isr(int irq, void *dev_id, struct pt_regs *regs) | ||
1205 | { | ||
1206 | nsp32_hw_data *data = dev_id; | ||
1207 | unsigned int base = data->BaseAddress; | ||
1208 | struct scsi_cmnd *SCpnt = data->CurrentSC; | ||
1209 | unsigned short auto_stat, irq_stat, trans_stat; | ||
1210 | unsigned char busmon, busphase; | ||
1211 | unsigned long flags; | ||
1212 | int ret; | ||
1213 | int handled = 0; | ||
1214 | |||
1215 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) | ||
1216 | struct Scsi_Host *host = data->Host; | ||
1217 | spin_lock_irqsave(host->host_lock, flags); | ||
1218 | #else | ||
1219 | spin_lock_irqsave(&io_request_lock, flags); | ||
1220 | #endif | ||
1221 | |||
1222 | /* | ||
1223 | * IRQ check, then enable IRQ mask | ||
1224 | */ | ||
1225 | irq_stat = nsp32_read2(base, IRQ_STATUS); | ||
1226 | nsp32_dbg(NSP32_DEBUG_INTR, | ||
1227 | "enter IRQ: %d, IRQstatus: 0x%x", irq, irq_stat); | ||
1228 | /* is this interrupt comes from Ninja asic? */ | ||
1229 | if ((irq_stat & IRQSTATUS_ANY_IRQ) == 0) { | ||
1230 | nsp32_dbg(NSP32_DEBUG_INTR, "shared interrupt: irq other 0x%x", irq_stat); | ||
1231 | goto out2; | ||
1232 | } | ||
1233 | handled = 1; | ||
1234 | nsp32_write2(base, IRQ_CONTROL, IRQ_CONTROL_ALL_IRQ_MASK); | ||
1235 | |||
1236 | busmon = nsp32_read1(base, SCSI_BUS_MONITOR); | ||
1237 | busphase = busmon & BUSMON_PHASE_MASK; | ||
1238 | |||
1239 | trans_stat = nsp32_read2(base, TRANSFER_STATUS); | ||
1240 | if ((irq_stat == 0xffff) && (trans_stat == 0xffff)) { | ||
1241 | nsp32_msg(KERN_INFO, "card disconnect"); | ||
1242 | if (data->CurrentSC != NULL) { | ||
1243 | nsp32_msg(KERN_INFO, "clean up current SCSI command"); | ||
1244 | SCpnt->result = DID_BAD_TARGET << 16; | ||
1245 | nsp32_scsi_done(SCpnt); | ||
1246 | } | ||
1247 | goto out; | ||
1248 | } | ||
1249 | |||
1250 | /* Timer IRQ */ | ||
1251 | if (irq_stat & IRQSTATUS_TIMER_IRQ) { | ||
1252 | nsp32_dbg(NSP32_DEBUG_INTR, "timer stop"); | ||
1253 | nsp32_write2(base, TIMER_SET, TIMER_STOP); | ||
1254 | goto out; | ||
1255 | } | ||
1256 | |||
1257 | /* SCSI reset */ | ||
1258 | if (irq_stat & IRQSTATUS_SCSIRESET_IRQ) { | ||
1259 | nsp32_msg(KERN_INFO, "detected someone do bus reset"); | ||
1260 | nsp32_do_bus_reset(data); | ||
1261 | if (SCpnt != NULL) { | ||
1262 | SCpnt->result = DID_RESET << 16; | ||
1263 | nsp32_scsi_done(SCpnt); | ||
1264 | } | ||
1265 | goto out; | ||
1266 | } | ||
1267 | |||
1268 | if (SCpnt == NULL) { | ||
1269 | nsp32_msg(KERN_WARNING, "SCpnt==NULL this can't be happened"); | ||
1270 | nsp32_msg(KERN_WARNING, "irq_stat=0x%x trans_stat=0x%x", irq_stat, trans_stat); | ||
1271 | goto out; | ||
1272 | } | ||
1273 | |||
1274 | /* | ||
1275 | * AutoSCSI Interrupt. | ||
1276 | * Note: This interrupt is occurred when AutoSCSI is finished. Then | ||
1277 | * check SCSIEXECUTEPHASE, and do appropriate action. Each phases are | ||
1278 | * recorded when AutoSCSI sequencer has been processed. | ||
1279 | */ | ||
1280 | if(irq_stat & IRQSTATUS_AUTOSCSI_IRQ) { | ||
1281 | /* getting SCSI executed phase */ | ||
1282 | auto_stat = nsp32_read2(base, SCSI_EXECUTE_PHASE); | ||
1283 | nsp32_write2(base, SCSI_EXECUTE_PHASE, 0); | ||
1284 | |||
1285 | /* Selection Timeout, go busfree phase. */ | ||
1286 | if (auto_stat & SELECTION_TIMEOUT) { | ||
1287 | nsp32_dbg(NSP32_DEBUG_INTR, | ||
1288 | "selection timeout occurred"); | ||
1289 | |||
1290 | SCpnt->result = DID_TIME_OUT << 16; | ||
1291 | nsp32_scsi_done(SCpnt); | ||
1292 | goto out; | ||
1293 | } | ||
1294 | |||
1295 | if (auto_stat & MSGOUT_PHASE) { | ||
1296 | /* | ||
1297 | * MsgOut phase was processed. | ||
1298 | * If MSG_IN_OCCUER is not set, then MsgOut phase is | ||
1299 | * completed. Thus, msgout_len must reset. Otherwise, | ||
1300 | * nothing to do here. If MSG_OUT_OCCUER is occurred, | ||
1301 | * then we will encounter the condition and check. | ||
1302 | */ | ||
1303 | if (!(auto_stat & MSG_IN_OCCUER) && | ||
1304 | (data->msgout_len <= 3)) { | ||
1305 | /* | ||
1306 | * !MSG_IN_OCCUER && msgout_len <=3 | ||
1307 | * ---> AutoSCSI with MSGOUTreg is processed. | ||
1308 | */ | ||
1309 | data->msgout_len = 0; | ||
1310 | }; | ||
1311 | |||
1312 | nsp32_dbg(NSP32_DEBUG_INTR, "MsgOut phase processed"); | ||
1313 | } | ||
1314 | |||
1315 | if ((auto_stat & DATA_IN_PHASE) && | ||
1316 | (SCpnt->resid > 0) && | ||
1317 | ((nsp32_read2(base, FIFO_REST_CNT) & FIFO_REST_MASK) != 0)) { | ||
1318 | printk( "auto+fifo\n"); | ||
1319 | //nsp32_pio_read(SCpnt); | ||
1320 | } | ||
1321 | |||
1322 | if (auto_stat & (DATA_IN_PHASE | DATA_OUT_PHASE)) { | ||
1323 | /* DATA_IN_PHASE/DATA_OUT_PHASE was processed. */ | ||
1324 | nsp32_dbg(NSP32_DEBUG_INTR, | ||
1325 | "Data in/out phase processed"); | ||
1326 | |||
1327 | /* read BMCNT, SGT pointer addr */ | ||
1328 | nsp32_dbg(NSP32_DEBUG_INTR, "BMCNT=0x%lx", | ||
1329 | nsp32_read4(base, BM_CNT)); | ||
1330 | nsp32_dbg(NSP32_DEBUG_INTR, "addr=0x%lx", | ||
1331 | nsp32_read4(base, SGT_ADR)); | ||
1332 | nsp32_dbg(NSP32_DEBUG_INTR, "SACK=0x%lx", | ||
1333 | nsp32_read4(base, SACK_CNT)); | ||
1334 | nsp32_dbg(NSP32_DEBUG_INTR, "SSACK=0x%lx", | ||
1335 | nsp32_read4(base, SAVED_SACK_CNT)); | ||
1336 | |||
1337 | SCpnt->resid = 0; /* all data transfered! */ | ||
1338 | } | ||
1339 | |||
1340 | /* | ||
1341 | * MsgIn Occur | ||
1342 | */ | ||
1343 | if (auto_stat & MSG_IN_OCCUER) { | ||
1344 | nsp32_msgin_occur(SCpnt, irq_stat, auto_stat); | ||
1345 | } | ||
1346 | |||
1347 | /* | ||
1348 | * MsgOut Occur | ||
1349 | */ | ||
1350 | if (auto_stat & MSG_OUT_OCCUER) { | ||
1351 | nsp32_msgout_occur(SCpnt); | ||
1352 | } | ||
1353 | |||
1354 | /* | ||
1355 | * Bus Free Occur | ||
1356 | */ | ||
1357 | if (auto_stat & BUS_FREE_OCCUER) { | ||
1358 | ret = nsp32_busfree_occur(SCpnt, auto_stat); | ||
1359 | if (ret == TRUE) { | ||
1360 | goto out; | ||
1361 | } | ||
1362 | } | ||
1363 | |||
1364 | if (auto_stat & STATUS_PHASE) { | ||
1365 | /* | ||
1366 | * Read CSB and substitute CSB for SCpnt->result | ||
1367 | * to save status phase stutas byte. | ||
1368 | * scsi error handler checks host_byte (DID_*: | ||
1369 | * low level driver to indicate status), then checks | ||
1370 | * status_byte (SCSI status byte). | ||
1371 | */ | ||
1372 | SCpnt->result = (int)nsp32_read1(base, SCSI_CSB_IN); | ||
1373 | } | ||
1374 | |||
1375 | if (auto_stat & ILLEGAL_PHASE) { | ||
1376 | /* Illegal phase is detected. SACK is not back. */ | ||
1377 | nsp32_msg(KERN_WARNING, | ||
1378 | "AUTO SCSI ILLEGAL PHASE OCCUR!!!!"); | ||
1379 | |||
1380 | /* TODO: currently we don't have any action... bus reset? */ | ||
1381 | |||
1382 | /* | ||
1383 | * To send back SACK, assert, wait, and negate. | ||
1384 | */ | ||
1385 | nsp32_sack_assert(data); | ||
1386 | nsp32_wait_req(data, NEGATE); | ||
1387 | nsp32_sack_negate(data); | ||
1388 | |||
1389 | } | ||
1390 | |||
1391 | if (auto_stat & COMMAND_PHASE) { | ||
1392 | /* nothing to do */ | ||
1393 | nsp32_dbg(NSP32_DEBUG_INTR, "Command phase processed"); | ||
1394 | } | ||
1395 | |||
1396 | if (auto_stat & AUTOSCSI_BUSY) { | ||
1397 | /* AutoSCSI is running */ | ||
1398 | } | ||
1399 | |||
1400 | show_autophase(auto_stat); | ||
1401 | } | ||
1402 | |||
1403 | /* FIFO_SHLD_IRQ */ | ||
1404 | if (irq_stat & IRQSTATUS_FIFO_SHLD_IRQ) { | ||
1405 | nsp32_dbg(NSP32_DEBUG_INTR, "FIFO IRQ"); | ||
1406 | |||
1407 | switch(busphase) { | ||
1408 | case BUSPHASE_DATA_OUT: | ||
1409 | nsp32_dbg(NSP32_DEBUG_INTR, "fifo/write"); | ||
1410 | |||
1411 | //nsp32_pio_write(SCpnt); | ||
1412 | |||
1413 | break; | ||
1414 | |||
1415 | case BUSPHASE_DATA_IN: | ||
1416 | nsp32_dbg(NSP32_DEBUG_INTR, "fifo/read"); | ||
1417 | |||
1418 | //nsp32_pio_read(SCpnt); | ||
1419 | |||
1420 | break; | ||
1421 | |||
1422 | case BUSPHASE_STATUS: | ||
1423 | nsp32_dbg(NSP32_DEBUG_INTR, "fifo/status"); | ||
1424 | |||
1425 | SCpnt->SCp.Status = nsp32_read1(base, SCSI_CSB_IN); | ||
1426 | |||
1427 | break; | ||
1428 | default: | ||
1429 | nsp32_dbg(NSP32_DEBUG_INTR, "fifo/other phase"); | ||
1430 | nsp32_dbg(NSP32_DEBUG_INTR, "irq_stat=0x%x trans_stat=0x%x", irq_stat, trans_stat); | ||
1431 | show_busphase(busphase); | ||
1432 | break; | ||
1433 | } | ||
1434 | |||
1435 | goto out; | ||
1436 | } | ||
1437 | |||
1438 | /* Phase Change IRQ */ | ||
1439 | if (irq_stat & IRQSTATUS_PHASE_CHANGE_IRQ) { | ||
1440 | nsp32_dbg(NSP32_DEBUG_INTR, "phase change IRQ"); | ||
1441 | |||
1442 | switch(busphase) { | ||
1443 | case BUSPHASE_MESSAGE_IN: | ||
1444 | nsp32_dbg(NSP32_DEBUG_INTR, "phase chg/msg in"); | ||
1445 | nsp32_msgin_occur(SCpnt, irq_stat, 0); | ||
1446 | break; | ||
1447 | default: | ||
1448 | nsp32_msg(KERN_WARNING, "phase chg/other phase?"); | ||
1449 | nsp32_msg(KERN_WARNING, "irq_stat=0x%x trans_stat=0x%x\n", | ||
1450 | irq_stat, trans_stat); | ||
1451 | show_busphase(busphase); | ||
1452 | break; | ||
1453 | } | ||
1454 | goto out; | ||
1455 | } | ||
1456 | |||
1457 | /* PCI_IRQ */ | ||
1458 | if (irq_stat & IRQSTATUS_PCI_IRQ) { | ||
1459 | nsp32_dbg(NSP32_DEBUG_INTR, "PCI IRQ occurred"); | ||
1460 | /* Do nothing */ | ||
1461 | } | ||
1462 | |||
1463 | /* BMCNTERR_IRQ */ | ||
1464 | if (irq_stat & IRQSTATUS_BMCNTERR_IRQ) { | ||
1465 | nsp32_msg(KERN_ERR, "Received unexpected BMCNTERR IRQ! "); | ||
1466 | /* | ||
1467 | * TODO: To be implemented improving bus master | ||
1468 | * transfer reliablity when BMCNTERR is occurred in | ||
1469 | * AutoSCSI phase described in specification. | ||
1470 | */ | ||
1471 | } | ||
1472 | |||
1473 | #if 0 | ||
1474 | nsp32_dbg(NSP32_DEBUG_INTR, | ||
1475 | "irq_stat=0x%x trans_stat=0x%x", irq_stat, trans_stat); | ||
1476 | show_busphase(busphase); | ||
1477 | #endif | ||
1478 | |||
1479 | out: | ||
1480 | /* disable IRQ mask */ | ||
1481 | nsp32_write2(base, IRQ_CONTROL, 0); | ||
1482 | |||
1483 | out2: | ||
1484 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) | ||
1485 | spin_unlock_irqrestore(host->host_lock, flags); | ||
1486 | #else | ||
1487 | spin_unlock_irqrestore(&io_request_lock, flags); | ||
1488 | #endif | ||
1489 | |||
1490 | nsp32_dbg(NSP32_DEBUG_INTR, "exit"); | ||
1491 | |||
1492 | return IRQ_RETVAL(handled); | ||
1493 | } | ||
1494 | |||
1495 | #undef SPRINTF | ||
1496 | #define SPRINTF(args...) \ | ||
1497 | do { \ | ||
1498 | if(length > (pos - buffer)) { \ | ||
1499 | pos += snprintf(pos, length - (pos - buffer) + 1, ## args); \ | ||
1500 | nsp32_dbg(NSP32_DEBUG_PROC, "buffer=0x%p pos=0x%p length=%d %d\n", buffer, pos, length, length - (pos - buffer));\ | ||
1501 | } \ | ||
1502 | } while(0) | ||
1503 | static int nsp32_proc_info( | ||
1504 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
1505 | struct Scsi_Host *host, | ||
1506 | #endif | ||
1507 | char *buffer, | ||
1508 | char **start, | ||
1509 | off_t offset, | ||
1510 | int length, | ||
1511 | #if !(LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
1512 | int hostno, | ||
1513 | #endif | ||
1514 | int inout) | ||
1515 | { | ||
1516 | char *pos = buffer; | ||
1517 | int thislength; | ||
1518 | unsigned long flags; | ||
1519 | nsp32_hw_data *data; | ||
1520 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
1521 | int hostno; | ||
1522 | #else | ||
1523 | struct Scsi_Host *host; | ||
1524 | #endif | ||
1525 | unsigned int base; | ||
1526 | unsigned char mode_reg; | ||
1527 | int id, speed; | ||
1528 | long model; | ||
1529 | |||
1530 | /* Write is not supported, just return. */ | ||
1531 | if (inout == TRUE) { | ||
1532 | return -EINVAL; | ||
1533 | } | ||
1534 | |||
1535 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
1536 | hostno = host->host_no; | ||
1537 | #else | ||
1538 | /* search this HBA host */ | ||
1539 | host = scsi_host_hn_get(hostno); | ||
1540 | if (host == NULL) { | ||
1541 | return -ESRCH; | ||
1542 | } | ||
1543 | #endif | ||
1544 | data = (nsp32_hw_data *)host->hostdata; | ||
1545 | base = host->io_port; | ||
1546 | |||
1547 | SPRINTF("NinjaSCSI-32 status\n\n"); | ||
1548 | SPRINTF("Driver version: %s, $Revision: 1.33 $\n", nsp32_release_version); | ||
1549 | SPRINTF("SCSI host No.: %d\n", hostno); | ||
1550 | SPRINTF("IRQ: %d\n", host->irq); | ||
1551 | SPRINTF("IO: 0x%lx-0x%lx\n", host->io_port, host->io_port + host->n_io_port - 1); | ||
1552 | SPRINTF("MMIO(virtual address): 0x%lx-0x%lx\n", host->base, host->base + data->MmioLength - 1); | ||
1553 | SPRINTF("sg_tablesize: %d\n", host->sg_tablesize); | ||
1554 | SPRINTF("Chip revision: 0x%x\n", (nsp32_read2(base, INDEX_REG) >> 8) & 0xff); | ||
1555 | |||
1556 | mode_reg = nsp32_index_read1(base, CHIP_MODE); | ||
1557 | model = data->pci_devid->driver_data; | ||
1558 | |||
1559 | #ifdef CONFIG_PM | ||
1560 | SPRINTF("Power Management: %s\n", (mode_reg & OPTF) ? "yes" : "no"); | ||
1561 | #endif | ||
1562 | SPRINTF("OEM: %ld, %s\n", (mode_reg & (OEM0|OEM1)), nsp32_model[model]); | ||
1563 | |||
1564 | spin_lock_irqsave(&(data->Lock), flags); | ||
1565 | SPRINTF("CurrentSC: 0x%p\n\n", data->CurrentSC); | ||
1566 | spin_unlock_irqrestore(&(data->Lock), flags); | ||
1567 | |||
1568 | |||
1569 | SPRINTF("SDTR status\n"); | ||
1570 | for (id = 0; id < ARRAY_SIZE(data->target); id++) { | ||
1571 | |||
1572 | SPRINTF("id %d: ", id); | ||
1573 | |||
1574 | if (id == host->this_id) { | ||
1575 | SPRINTF("----- NinjaSCSI-32 host adapter\n"); | ||
1576 | continue; | ||
1577 | } | ||
1578 | |||
1579 | if (data->target[id].sync_flag == SDTR_DONE) { | ||
1580 | if (data->target[id].period == 0 && | ||
1581 | data->target[id].offset == ASYNC_OFFSET ) { | ||
1582 | SPRINTF("async"); | ||
1583 | } else { | ||
1584 | SPRINTF(" sync"); | ||
1585 | } | ||
1586 | } else { | ||
1587 | SPRINTF(" none"); | ||
1588 | } | ||
1589 | |||
1590 | if (data->target[id].period != 0) { | ||
1591 | |||
1592 | speed = 1000000 / (data->target[id].period * 4); | ||
1593 | |||
1594 | SPRINTF(" transfer %d.%dMB/s, offset %d", | ||
1595 | speed / 1000, | ||
1596 | speed % 1000, | ||
1597 | data->target[id].offset | ||
1598 | ); | ||
1599 | } | ||
1600 | SPRINTF("\n"); | ||
1601 | } | ||
1602 | |||
1603 | |||
1604 | thislength = pos - (buffer + offset); | ||
1605 | |||
1606 | if(thislength < 0) { | ||
1607 | *start = NULL; | ||
1608 | return 0; | ||
1609 | } | ||
1610 | |||
1611 | |||
1612 | thislength = min(thislength, length); | ||
1613 | *start = buffer + offset; | ||
1614 | |||
1615 | return thislength; | ||
1616 | } | ||
1617 | #undef SPRINTF | ||
1618 | |||
1619 | |||
1620 | |||
1621 | /* | ||
1622 | * Reset parameters and call scsi_done for data->cur_lunt. | ||
1623 | * Be careful setting SCpnt->result = DID_* before calling this function. | ||
1624 | */ | ||
1625 | static void nsp32_scsi_done(struct scsi_cmnd *SCpnt) | ||
1626 | { | ||
1627 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
1628 | unsigned int base = SCpnt->device->host->io_port; | ||
1629 | |||
1630 | /* | ||
1631 | * unmap pci | ||
1632 | */ | ||
1633 | if (SCpnt->request_bufflen == 0) { | ||
1634 | goto skip; | ||
1635 | } | ||
1636 | |||
1637 | if (SCpnt->use_sg) { | ||
1638 | pci_unmap_sg(data->Pci, | ||
1639 | (struct scatterlist *)SCpnt->buffer, | ||
1640 | SCpnt->use_sg, SCpnt->sc_data_direction); | ||
1641 | } else { | ||
1642 | pci_unmap_single(data->Pci, | ||
1643 | (u32)SCpnt->SCp.have_data_in, | ||
1644 | SCpnt->request_bufflen, | ||
1645 | SCpnt->sc_data_direction); | ||
1646 | } | ||
1647 | |||
1648 | skip: | ||
1649 | /* | ||
1650 | * clear TRANSFERCONTROL_BM_START | ||
1651 | */ | ||
1652 | nsp32_write2(base, TRANSFER_CONTROL, 0); | ||
1653 | nsp32_write4(base, BM_CNT, 0); | ||
1654 | |||
1655 | /* | ||
1656 | * call scsi_done | ||
1657 | */ | ||
1658 | (*SCpnt->scsi_done)(SCpnt); | ||
1659 | |||
1660 | /* | ||
1661 | * reset parameters | ||
1662 | */ | ||
1663 | data->cur_lunt->SCpnt = NULL; | ||
1664 | data->cur_lunt = NULL; | ||
1665 | data->cur_target = NULL; | ||
1666 | data->CurrentSC = NULL; | ||
1667 | } | ||
1668 | |||
1669 | |||
1670 | /* | ||
1671 | * Bus Free Occur | ||
1672 | * | ||
1673 | * Current Phase is BUSFREE. AutoSCSI is automatically execute BUSFREE phase | ||
1674 | * with ACK reply when below condition is matched: | ||
1675 | * MsgIn 00: Command Complete. | ||
1676 | * MsgIn 02: Save Data Pointer. | ||
1677 | * MsgIn 04: Diconnect. | ||
1678 | * In other case, unexpected BUSFREE is detected. | ||
1679 | */ | ||
1680 | static int nsp32_busfree_occur(struct scsi_cmnd *SCpnt, unsigned short execph) | ||
1681 | { | ||
1682 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
1683 | unsigned int base = SCpnt->device->host->io_port; | ||
1684 | |||
1685 | nsp32_dbg(NSP32_DEBUG_BUSFREE, "enter execph=0x%x", execph); | ||
1686 | show_autophase(execph); | ||
1687 | |||
1688 | nsp32_write4(base, BM_CNT, 0); | ||
1689 | nsp32_write2(base, TRANSFER_CONTROL, 0); | ||
1690 | |||
1691 | /* | ||
1692 | * MsgIn 02: Save Data Pointer | ||
1693 | * | ||
1694 | * VALID: | ||
1695 | * Save Data Pointer is received. Adjust pointer. | ||
1696 | * | ||
1697 | * NO-VALID: | ||
1698 | * SCSI-3 says if Save Data Pointer is not received, then we restart | ||
1699 | * processing and we can't adjust any SCSI data pointer in next data | ||
1700 | * phase. | ||
1701 | */ | ||
1702 | if (execph & MSGIN_02_VALID) { | ||
1703 | nsp32_dbg(NSP32_DEBUG_BUSFREE, "MsgIn02_Valid"); | ||
1704 | |||
1705 | /* | ||
1706 | * Check sack_cnt/saved_sack_cnt, then adjust sg table if | ||
1707 | * needed. | ||
1708 | */ | ||
1709 | if (!(execph & MSGIN_00_VALID) && | ||
1710 | ((execph & DATA_IN_PHASE) || (execph & DATA_OUT_PHASE))) { | ||
1711 | unsigned int sacklen, s_sacklen; | ||
1712 | |||
1713 | /* | ||
1714 | * Read SACK count and SAVEDSACK count, then compare. | ||
1715 | */ | ||
1716 | sacklen = nsp32_read4(base, SACK_CNT ); | ||
1717 | s_sacklen = nsp32_read4(base, SAVED_SACK_CNT); | ||
1718 | |||
1719 | /* | ||
1720 | * If SAVEDSACKCNT == 0, it means SavedDataPointer is | ||
1721 | * come after data transfering. | ||
1722 | */ | ||
1723 | if (s_sacklen > 0) { | ||
1724 | /* | ||
1725 | * Comparing between sack and savedsack to | ||
1726 | * check the condition of AutoMsgIn03. | ||
1727 | * | ||
1728 | * If they are same, set msgin03 == TRUE, | ||
1729 | * COMMANDCONTROL_AUTO_MSGIN_03 is enabled at | ||
1730 | * reselection. On the other hand, if they | ||
1731 | * aren't same, set msgin03 == FALSE, and | ||
1732 | * COMMANDCONTROL_AUTO_MSGIN_03 is disabled at | ||
1733 | * reselection. | ||
1734 | */ | ||
1735 | if (sacklen != s_sacklen) { | ||
1736 | data->cur_lunt->msgin03 = FALSE; | ||
1737 | } else { | ||
1738 | data->cur_lunt->msgin03 = TRUE; | ||
1739 | } | ||
1740 | |||
1741 | nsp32_adjust_busfree(SCpnt, s_sacklen); | ||
1742 | } | ||
1743 | } | ||
1744 | |||
1745 | /* This value has not substitude with valid value yet... */ | ||
1746 | //data->cur_lunt->save_datp = data->cur_datp; | ||
1747 | } else { | ||
1748 | /* | ||
1749 | * no processing. | ||
1750 | */ | ||
1751 | } | ||
1752 | |||
1753 | if (execph & MSGIN_03_VALID) { | ||
1754 | /* MsgIn03 was valid to be processed. No need processing. */ | ||
1755 | } | ||
1756 | |||
1757 | /* | ||
1758 | * target SDTR check | ||
1759 | */ | ||
1760 | if (data->cur_target->sync_flag & SDTR_INITIATOR) { | ||
1761 | /* | ||
1762 | * SDTR negotiation pulled by the initiator has not | ||
1763 | * finished yet. Fall back to ASYNC mode. | ||
1764 | */ | ||
1765 | nsp32_set_async(data, data->cur_target); | ||
1766 | data->cur_target->sync_flag &= ~SDTR_INITIATOR; | ||
1767 | data->cur_target->sync_flag |= SDTR_DONE; | ||
1768 | } else if (data->cur_target->sync_flag & SDTR_TARGET) { | ||
1769 | /* | ||
1770 | * SDTR negotiation pulled by the target has been | ||
1771 | * negotiating. | ||
1772 | */ | ||
1773 | if (execph & (MSGIN_00_VALID | MSGIN_04_VALID)) { | ||
1774 | /* | ||
1775 | * If valid message is received, then | ||
1776 | * negotiation is succeeded. | ||
1777 | */ | ||
1778 | } else { | ||
1779 | /* | ||
1780 | * On the contrary, if unexpected bus free is | ||
1781 | * occurred, then negotiation is failed. Fall | ||
1782 | * back to ASYNC mode. | ||
1783 | */ | ||
1784 | nsp32_set_async(data, data->cur_target); | ||
1785 | } | ||
1786 | data->cur_target->sync_flag &= ~SDTR_TARGET; | ||
1787 | data->cur_target->sync_flag |= SDTR_DONE; | ||
1788 | } | ||
1789 | |||
1790 | /* | ||
1791 | * It is always ensured by SCSI standard that initiator | ||
1792 | * switches into Bus Free Phase after | ||
1793 | * receiving message 00 (Command Complete), 04 (Disconnect). | ||
1794 | * It's the reason that processing here is valid. | ||
1795 | */ | ||
1796 | if (execph & MSGIN_00_VALID) { | ||
1797 | /* MsgIn 00: Command Complete */ | ||
1798 | nsp32_dbg(NSP32_DEBUG_BUSFREE, "command complete"); | ||
1799 | |||
1800 | SCpnt->SCp.Status = nsp32_read1(base, SCSI_CSB_IN); | ||
1801 | SCpnt->SCp.Message = 0; | ||
1802 | nsp32_dbg(NSP32_DEBUG_BUSFREE, | ||
1803 | "normal end stat=0x%x resid=0x%x\n", | ||
1804 | SCpnt->SCp.Status, SCpnt->resid); | ||
1805 | SCpnt->result = (DID_OK << 16) | | ||
1806 | (SCpnt->SCp.Message << 8) | | ||
1807 | (SCpnt->SCp.Status << 0); | ||
1808 | nsp32_scsi_done(SCpnt); | ||
1809 | /* All operation is done */ | ||
1810 | return TRUE; | ||
1811 | } else if (execph & MSGIN_04_VALID) { | ||
1812 | /* MsgIn 04: Disconnect */ | ||
1813 | SCpnt->SCp.Status = nsp32_read1(base, SCSI_CSB_IN); | ||
1814 | SCpnt->SCp.Message = 4; | ||
1815 | |||
1816 | nsp32_dbg(NSP32_DEBUG_BUSFREE, "disconnect"); | ||
1817 | return TRUE; | ||
1818 | } else { | ||
1819 | /* Unexpected bus free */ | ||
1820 | nsp32_msg(KERN_WARNING, "unexpected bus free occurred"); | ||
1821 | |||
1822 | /* DID_ERROR? */ | ||
1823 | //SCpnt->result = (DID_OK << 16) | (SCpnt->SCp.Message << 8) | (SCpnt->SCp.Status << 0); | ||
1824 | SCpnt->result = DID_ERROR << 16; | ||
1825 | nsp32_scsi_done(SCpnt); | ||
1826 | return TRUE; | ||
1827 | } | ||
1828 | return FALSE; | ||
1829 | } | ||
1830 | |||
1831 | |||
1832 | /* | ||
1833 | * nsp32_adjust_busfree - adjusting SG table | ||
1834 | * | ||
1835 | * Note: This driver adjust the SG table using SCSI ACK | ||
1836 | * counter instead of BMCNT counter! | ||
1837 | */ | ||
1838 | static void nsp32_adjust_busfree(struct scsi_cmnd *SCpnt, unsigned int s_sacklen) | ||
1839 | { | ||
1840 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
1841 | int old_entry = data->cur_entry; | ||
1842 | int new_entry; | ||
1843 | int sg_num = data->cur_lunt->sg_num; | ||
1844 | nsp32_sgtable *sgt = data->cur_lunt->sglun->sgt; | ||
1845 | unsigned int restlen, sentlen; | ||
1846 | u32_le len, addr; | ||
1847 | |||
1848 | nsp32_dbg(NSP32_DEBUG_SGLIST, "old resid=0x%x", SCpnt->resid); | ||
1849 | |||
1850 | /* adjust saved SACK count with 4 byte start address boundary */ | ||
1851 | s_sacklen -= le32_to_cpu(sgt[old_entry].addr) & 3; | ||
1852 | |||
1853 | /* | ||
1854 | * calculate new_entry from sack count and each sgt[].len | ||
1855 | * calculate the byte which is intent to send | ||
1856 | */ | ||
1857 | sentlen = 0; | ||
1858 | for (new_entry = old_entry; new_entry < sg_num; new_entry++) { | ||
1859 | sentlen += (le32_to_cpu(sgt[new_entry].len) & ~SGTEND); | ||
1860 | if (sentlen > s_sacklen) { | ||
1861 | break; | ||
1862 | } | ||
1863 | } | ||
1864 | |||
1865 | /* all sgt is processed */ | ||
1866 | if (new_entry == sg_num) { | ||
1867 | goto last; | ||
1868 | } | ||
1869 | |||
1870 | if (sentlen == s_sacklen) { | ||
1871 | /* XXX: confirm it's ok or not */ | ||
1872 | /* In this case, it's ok because we are at | ||
1873 | the head element of the sg. restlen is correctly calculated. */ | ||
1874 | } | ||
1875 | |||
1876 | /* calculate the rest length for transfering */ | ||
1877 | restlen = sentlen - s_sacklen; | ||
1878 | |||
1879 | /* update adjusting current SG table entry */ | ||
1880 | len = le32_to_cpu(sgt[new_entry].len); | ||
1881 | addr = le32_to_cpu(sgt[new_entry].addr); | ||
1882 | addr += (len - restlen); | ||
1883 | sgt[new_entry].addr = cpu_to_le32(addr); | ||
1884 | sgt[new_entry].len = cpu_to_le32(restlen); | ||
1885 | |||
1886 | /* set cur_entry with new_entry */ | ||
1887 | data->cur_entry = new_entry; | ||
1888 | |||
1889 | return; | ||
1890 | |||
1891 | last: | ||
1892 | if (SCpnt->resid < sentlen) { | ||
1893 | nsp32_msg(KERN_ERR, "resid underflow"); | ||
1894 | } | ||
1895 | |||
1896 | SCpnt->resid -= sentlen; | ||
1897 | nsp32_dbg(NSP32_DEBUG_SGLIST, "new resid=0x%x", SCpnt->resid); | ||
1898 | |||
1899 | /* update hostdata and lun */ | ||
1900 | |||
1901 | return; | ||
1902 | } | ||
1903 | |||
1904 | |||
1905 | /* | ||
1906 | * It's called MsgOut phase occur. | ||
1907 | * NinjaSCSI-32Bi/UDE automatically processes up to 3 messages in | ||
1908 | * message out phase. It, however, has more than 3 messages, | ||
1909 | * HBA creates the interrupt and we have to process by hand. | ||
1910 | */ | ||
1911 | static void nsp32_msgout_occur(struct scsi_cmnd *SCpnt) | ||
1912 | { | ||
1913 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
1914 | unsigned int base = SCpnt->device->host->io_port; | ||
1915 | //unsigned short command; | ||
1916 | long new_sgtp; | ||
1917 | int i; | ||
1918 | |||
1919 | nsp32_dbg(NSP32_DEBUG_MSGOUTOCCUR, | ||
1920 | "enter: msgout_len: 0x%x", data->msgout_len); | ||
1921 | |||
1922 | /* | ||
1923 | * If MsgOut phase is occurred without having any | ||
1924 | * message, then No_Operation is sent (SCSI-2). | ||
1925 | */ | ||
1926 | if (data->msgout_len == 0) { | ||
1927 | nsp32_build_nop(SCpnt); | ||
1928 | } | ||
1929 | |||
1930 | /* | ||
1931 | * Set SGTP ADDR current entry for restarting AUTOSCSI, | ||
1932 | * because SGTP is incremented next point. | ||
1933 | * There is few statement in the specification... | ||
1934 | */ | ||
1935 | new_sgtp = data->cur_lunt->sglun_paddr + | ||
1936 | (data->cur_lunt->cur_entry * sizeof(nsp32_sgtable)); | ||
1937 | |||
1938 | /* | ||
1939 | * send messages | ||
1940 | */ | ||
1941 | for (i = 0; i < data->msgout_len; i++) { | ||
1942 | nsp32_dbg(NSP32_DEBUG_MSGOUTOCCUR, | ||
1943 | "%d : 0x%x", i, data->msgoutbuf[i]); | ||
1944 | |||
1945 | /* | ||
1946 | * Check REQ is asserted. | ||
1947 | */ | ||
1948 | nsp32_wait_req(data, ASSERT); | ||
1949 | |||
1950 | if (i == (data->msgout_len - 1)) { | ||
1951 | /* | ||
1952 | * If the last message, set the AutoSCSI restart | ||
1953 | * before send back the ack message. AutoSCSI | ||
1954 | * restart automatically negate ATN signal. | ||
1955 | */ | ||
1956 | //command = (AUTO_MSGIN_00_OR_04 | AUTO_MSGIN_02); | ||
1957 | //nsp32_restart_autoscsi(SCpnt, command); | ||
1958 | nsp32_write2(base, COMMAND_CONTROL, | ||
1959 | (CLEAR_CDB_FIFO_POINTER | | ||
1960 | AUTO_COMMAND_PHASE | | ||
1961 | AUTOSCSI_RESTART | | ||
1962 | AUTO_MSGIN_00_OR_04 | | ||
1963 | AUTO_MSGIN_02 )); | ||
1964 | } | ||
1965 | /* | ||
1966 | * Write data with SACK, then wait sack is | ||
1967 | * automatically negated. | ||
1968 | */ | ||
1969 | nsp32_write1(base, SCSI_DATA_WITH_ACK, data->msgoutbuf[i]); | ||
1970 | nsp32_wait_sack(data, NEGATE); | ||
1971 | |||
1972 | nsp32_dbg(NSP32_DEBUG_MSGOUTOCCUR, "bus: 0x%x\n", | ||
1973 | nsp32_read1(base, SCSI_BUS_MONITOR)); | ||
1974 | }; | ||
1975 | |||
1976 | data->msgout_len = 0; | ||
1977 | |||
1978 | nsp32_dbg(NSP32_DEBUG_MSGOUTOCCUR, "exit"); | ||
1979 | } | ||
1980 | |||
1981 | /* | ||
1982 | * Restart AutoSCSI | ||
1983 | * | ||
1984 | * Note: Restarting AutoSCSI needs set: | ||
1985 | * SYNC_REG, ACK_WIDTH, SGT_ADR, TRANSFER_CONTROL | ||
1986 | */ | ||
1987 | static void nsp32_restart_autoscsi(struct scsi_cmnd *SCpnt, unsigned short command) | ||
1988 | { | ||
1989 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
1990 | unsigned int base = data->BaseAddress; | ||
1991 | unsigned short transfer = 0; | ||
1992 | |||
1993 | nsp32_dbg(NSP32_DEBUG_RESTART, "enter"); | ||
1994 | |||
1995 | if (data->cur_target == NULL || data->cur_lunt == NULL) { | ||
1996 | nsp32_msg(KERN_ERR, "Target or Lun is invalid"); | ||
1997 | } | ||
1998 | |||
1999 | /* | ||
2000 | * set SYNC_REG | ||
2001 | * Don't set BM_START_ADR before setting this register. | ||
2002 | */ | ||
2003 | nsp32_write1(base, SYNC_REG, data->cur_target->syncreg); | ||
2004 | |||
2005 | /* | ||
2006 | * set ACKWIDTH | ||
2007 | */ | ||
2008 | nsp32_write1(base, ACK_WIDTH, data->cur_target->ackwidth); | ||
2009 | |||
2010 | /* | ||
2011 | * set SREQ hazard killer sampling rate | ||
2012 | */ | ||
2013 | nsp32_write1(base, SREQ_SMPL_RATE, data->cur_target->sample_reg); | ||
2014 | |||
2015 | /* | ||
2016 | * set SGT ADDR (physical address) | ||
2017 | */ | ||
2018 | nsp32_write4(base, SGT_ADR, data->cur_lunt->sglun_paddr); | ||
2019 | |||
2020 | /* | ||
2021 | * set TRANSFER CONTROL REG | ||
2022 | */ | ||
2023 | transfer = 0; | ||
2024 | transfer |= (TRANSFER_GO | ALL_COUNTER_CLR); | ||
2025 | if (data->trans_method & NSP32_TRANSFER_BUSMASTER) { | ||
2026 | if (SCpnt->request_bufflen > 0) { | ||
2027 | transfer |= BM_START; | ||
2028 | } | ||
2029 | } else if (data->trans_method & NSP32_TRANSFER_MMIO) { | ||
2030 | transfer |= CB_MMIO_MODE; | ||
2031 | } else if (data->trans_method & NSP32_TRANSFER_PIO) { | ||
2032 | transfer |= CB_IO_MODE; | ||
2033 | } | ||
2034 | nsp32_write2(base, TRANSFER_CONTROL, transfer); | ||
2035 | |||
2036 | /* | ||
2037 | * restart AutoSCSI | ||
2038 | * | ||
2039 | * TODO: COMMANDCONTROL_AUTO_COMMAND_PHASE is needed ? | ||
2040 | */ | ||
2041 | command |= (CLEAR_CDB_FIFO_POINTER | | ||
2042 | AUTO_COMMAND_PHASE | | ||
2043 | AUTOSCSI_RESTART ); | ||
2044 | nsp32_write2(base, COMMAND_CONTROL, command); | ||
2045 | |||
2046 | nsp32_dbg(NSP32_DEBUG_RESTART, "exit"); | ||
2047 | } | ||
2048 | |||
2049 | |||
2050 | /* | ||
2051 | * cannot run automatically message in occur | ||
2052 | */ | ||
2053 | static void nsp32_msgin_occur(struct scsi_cmnd *SCpnt, | ||
2054 | unsigned long irq_status, | ||
2055 | unsigned short execph) | ||
2056 | { | ||
2057 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
2058 | unsigned int base = SCpnt->device->host->io_port; | ||
2059 | unsigned char msg; | ||
2060 | unsigned char msgtype; | ||
2061 | unsigned char newlun; | ||
2062 | unsigned short command = 0; | ||
2063 | int msgclear = TRUE; | ||
2064 | long new_sgtp; | ||
2065 | int ret; | ||
2066 | |||
2067 | /* | ||
2068 | * read first message | ||
2069 | * Use SCSIDATA_W_ACK instead of SCSIDATAIN, because the procedure | ||
2070 | * of Message-In have to be processed before sending back SCSI ACK. | ||
2071 | */ | ||
2072 | msg = nsp32_read1(base, SCSI_DATA_IN); | ||
2073 | data->msginbuf[(unsigned char)data->msgin_len] = msg; | ||
2074 | msgtype = data->msginbuf[0]; | ||
2075 | nsp32_dbg(NSP32_DEBUG_MSGINOCCUR, | ||
2076 | "enter: msglen: 0x%x msgin: 0x%x msgtype: 0x%x", | ||
2077 | data->msgin_len, msg, msgtype); | ||
2078 | |||
2079 | /* | ||
2080 | * TODO: We need checking whether bus phase is message in? | ||
2081 | */ | ||
2082 | |||
2083 | /* | ||
2084 | * assert SCSI ACK | ||
2085 | */ | ||
2086 | nsp32_sack_assert(data); | ||
2087 | |||
2088 | /* | ||
2089 | * processing IDENTIFY | ||
2090 | */ | ||
2091 | if (msgtype & 0x80) { | ||
2092 | if (!(irq_status & IRQSTATUS_RESELECT_OCCUER)) { | ||
2093 | /* Invalid (non reselect) phase */ | ||
2094 | goto reject; | ||
2095 | } | ||
2096 | |||
2097 | newlun = msgtype & 0x1f; /* TODO: SPI-3 compliant? */ | ||
2098 | ret = nsp32_reselection(SCpnt, newlun); | ||
2099 | if (ret == TRUE) { | ||
2100 | goto restart; | ||
2101 | } else { | ||
2102 | goto reject; | ||
2103 | } | ||
2104 | } | ||
2105 | |||
2106 | /* | ||
2107 | * processing messages except for IDENTIFY | ||
2108 | * | ||
2109 | * TODO: Messages are all SCSI-2 terminology. SCSI-3 compliance is TODO. | ||
2110 | */ | ||
2111 | switch (msgtype) { | ||
2112 | /* | ||
2113 | * 1-byte message | ||
2114 | */ | ||
2115 | case COMMAND_COMPLETE: | ||
2116 | case DISCONNECT: | ||
2117 | /* | ||
2118 | * These messages should not be occurred. | ||
2119 | * They should be processed on AutoSCSI sequencer. | ||
2120 | */ | ||
2121 | nsp32_msg(KERN_WARNING, | ||
2122 | "unexpected message of AutoSCSI MsgIn: 0x%x", msg); | ||
2123 | break; | ||
2124 | |||
2125 | case RESTORE_POINTERS: | ||
2126 | /* | ||
2127 | * AutoMsgIn03 is disabled, and HBA gets this message. | ||
2128 | */ | ||
2129 | |||
2130 | if ((execph & DATA_IN_PHASE) || (execph & DATA_OUT_PHASE)) { | ||
2131 | unsigned int s_sacklen; | ||
2132 | |||
2133 | s_sacklen = nsp32_read4(base, SAVED_SACK_CNT); | ||
2134 | if ((execph & MSGIN_02_VALID) && (s_sacklen > 0)) { | ||
2135 | nsp32_adjust_busfree(SCpnt, s_sacklen); | ||
2136 | } else { | ||
2137 | /* No need to rewrite SGT */ | ||
2138 | } | ||
2139 | } | ||
2140 | data->cur_lunt->msgin03 = FALSE; | ||
2141 | |||
2142 | /* Update with the new value */ | ||
2143 | |||
2144 | /* reset SACK/SavedACK counter (or ALL clear?) */ | ||
2145 | nsp32_write4(base, CLR_COUNTER, CLRCOUNTER_ALLMASK); | ||
2146 | |||
2147 | /* | ||
2148 | * set new sg pointer | ||
2149 | */ | ||
2150 | new_sgtp = data->cur_lunt->sglun_paddr + | ||
2151 | (data->cur_lunt->cur_entry * sizeof(nsp32_sgtable)); | ||
2152 | nsp32_write4(base, SGT_ADR, new_sgtp); | ||
2153 | |||
2154 | break; | ||
2155 | |||
2156 | case SAVE_POINTERS: | ||
2157 | /* | ||
2158 | * These messages should not be occurred. | ||
2159 | * They should be processed on AutoSCSI sequencer. | ||
2160 | */ | ||
2161 | nsp32_msg (KERN_WARNING, | ||
2162 | "unexpected message of AutoSCSI MsgIn: SAVE_POINTERS"); | ||
2163 | |||
2164 | break; | ||
2165 | |||
2166 | case MESSAGE_REJECT: | ||
2167 | /* If previous message_out is sending SDTR, and get | ||
2168 | message_reject from target, SDTR negotiation is failed */ | ||
2169 | if (data->cur_target->sync_flag & | ||
2170 | (SDTR_INITIATOR | SDTR_TARGET)) { | ||
2171 | /* | ||
2172 | * Current target is negotiating SDTR, but it's | ||
2173 | * failed. Fall back to async transfer mode, and set | ||
2174 | * SDTR_DONE. | ||
2175 | */ | ||
2176 | nsp32_set_async(data, data->cur_target); | ||
2177 | data->cur_target->sync_flag &= ~SDTR_INITIATOR; | ||
2178 | data->cur_target->sync_flag |= SDTR_DONE; | ||
2179 | |||
2180 | } | ||
2181 | break; | ||
2182 | |||
2183 | case LINKED_CMD_COMPLETE: | ||
2184 | case LINKED_FLG_CMD_COMPLETE: | ||
2185 | /* queue tag is not supported currently */ | ||
2186 | nsp32_msg (KERN_WARNING, | ||
2187 | "unsupported message: 0x%x", msgtype); | ||
2188 | break; | ||
2189 | |||
2190 | case INITIATE_RECOVERY: | ||
2191 | /* staring ECA (Extended Contingent Allegiance) state. */ | ||
2192 | /* This message is declined in SPI2 or later. */ | ||
2193 | |||
2194 | goto reject; | ||
2195 | |||
2196 | /* | ||
2197 | * 2-byte message | ||
2198 | */ | ||
2199 | case SIMPLE_QUEUE_TAG: | ||
2200 | case 0x23: | ||
2201 | /* | ||
2202 | * 0x23: Ignore_Wide_Residue is not declared in scsi.h. | ||
2203 | * No support is needed. | ||
2204 | */ | ||
2205 | if (data->msgin_len >= 1) { | ||
2206 | goto reject; | ||
2207 | } | ||
2208 | |||
2209 | /* current position is 1-byte of 2 byte */ | ||
2210 | msgclear = FALSE; | ||
2211 | |||
2212 | break; | ||
2213 | |||
2214 | /* | ||
2215 | * extended message | ||
2216 | */ | ||
2217 | case EXTENDED_MESSAGE: | ||
2218 | if (data->msgin_len < 1) { | ||
2219 | /* | ||
2220 | * Current position does not reach 2-byte | ||
2221 | * (2-byte is extended message length). | ||
2222 | */ | ||
2223 | msgclear = FALSE; | ||
2224 | break; | ||
2225 | } | ||
2226 | |||
2227 | if ((data->msginbuf[1] + 1) > data->msgin_len) { | ||
2228 | /* | ||
2229 | * Current extended message has msginbuf[1] + 2 | ||
2230 | * (msgin_len starts counting from 0, so buf[1] + 1). | ||
2231 | * If current message position is not finished, | ||
2232 | * continue receiving message. | ||
2233 | */ | ||
2234 | msgclear = FALSE; | ||
2235 | break; | ||
2236 | } | ||
2237 | |||
2238 | /* | ||
2239 | * Reach here means regular length of each type of | ||
2240 | * extended messages. | ||
2241 | */ | ||
2242 | switch (data->msginbuf[2]) { | ||
2243 | case EXTENDED_MODIFY_DATA_POINTER: | ||
2244 | /* TODO */ | ||
2245 | goto reject; /* not implemented yet */ | ||
2246 | break; | ||
2247 | |||
2248 | case EXTENDED_SDTR: | ||
2249 | /* | ||
2250 | * Exchange this message between initiator and target. | ||
2251 | */ | ||
2252 | if (data->msgin_len != EXTENDED_SDTR_LEN + 1) { | ||
2253 | /* | ||
2254 | * received inappropriate message. | ||
2255 | */ | ||
2256 | goto reject; | ||
2257 | break; | ||
2258 | } | ||
2259 | |||
2260 | nsp32_analyze_sdtr(SCpnt); | ||
2261 | |||
2262 | break; | ||
2263 | |||
2264 | case EXTENDED_EXTENDED_IDENTIFY: | ||
2265 | /* SCSI-I only, not supported. */ | ||
2266 | goto reject; /* not implemented yet */ | ||
2267 | |||
2268 | break; | ||
2269 | |||
2270 | case EXTENDED_WDTR: | ||
2271 | goto reject; /* not implemented yet */ | ||
2272 | |||
2273 | break; | ||
2274 | |||
2275 | default: | ||
2276 | goto reject; | ||
2277 | } | ||
2278 | break; | ||
2279 | |||
2280 | default: | ||
2281 | goto reject; | ||
2282 | } | ||
2283 | |||
2284 | restart: | ||
2285 | if (msgclear == TRUE) { | ||
2286 | data->msgin_len = 0; | ||
2287 | |||
2288 | /* | ||
2289 | * If restarting AutoSCSI, but there are some message to out | ||
2290 | * (msgout_len > 0), set AutoATN, and set SCSIMSGOUT as 0 | ||
2291 | * (MV_VALID = 0). When commandcontrol is written with | ||
2292 | * AutoSCSI restart, at the same time MsgOutOccur should be | ||
2293 | * happened (however, such situation is really possible...?). | ||
2294 | */ | ||
2295 | if (data->msgout_len > 0) { | ||
2296 | nsp32_write4(base, SCSI_MSG_OUT, 0); | ||
2297 | command |= AUTO_ATN; | ||
2298 | } | ||
2299 | |||
2300 | /* | ||
2301 | * restart AutoSCSI | ||
2302 | * If it's failed, COMMANDCONTROL_AUTO_COMMAND_PHASE is needed. | ||
2303 | */ | ||
2304 | command |= (AUTO_MSGIN_00_OR_04 | AUTO_MSGIN_02); | ||
2305 | |||
2306 | /* | ||
2307 | * If current msgin03 is TRUE, then flag on. | ||
2308 | */ | ||
2309 | if (data->cur_lunt->msgin03 == TRUE) { | ||
2310 | command |= AUTO_MSGIN_03; | ||
2311 | } | ||
2312 | data->cur_lunt->msgin03 = FALSE; | ||
2313 | } else { | ||
2314 | data->msgin_len++; | ||
2315 | } | ||
2316 | |||
2317 | /* | ||
2318 | * restart AutoSCSI | ||
2319 | */ | ||
2320 | nsp32_restart_autoscsi(SCpnt, command); | ||
2321 | |||
2322 | /* | ||
2323 | * wait SCSI REQ negate for REQ-ACK handshake | ||
2324 | */ | ||
2325 | nsp32_wait_req(data, NEGATE); | ||
2326 | |||
2327 | /* | ||
2328 | * negate SCSI ACK | ||
2329 | */ | ||
2330 | nsp32_sack_negate(data); | ||
2331 | |||
2332 | nsp32_dbg(NSP32_DEBUG_MSGINOCCUR, "exit"); | ||
2333 | |||
2334 | return; | ||
2335 | |||
2336 | reject: | ||
2337 | nsp32_msg(KERN_WARNING, | ||
2338 | "invalid or unsupported MessageIn, rejected. " | ||
2339 | "current msg: 0x%x (len: 0x%x), processing msg: 0x%x", | ||
2340 | msg, data->msgin_len, msgtype); | ||
2341 | nsp32_build_reject(SCpnt); | ||
2342 | data->msgin_len = 0; | ||
2343 | |||
2344 | goto restart; | ||
2345 | } | ||
2346 | |||
2347 | /* | ||
2348 | * | ||
2349 | */ | ||
2350 | static void nsp32_analyze_sdtr(struct scsi_cmnd *SCpnt) | ||
2351 | { | ||
2352 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
2353 | nsp32_target *target = data->cur_target; | ||
2354 | nsp32_sync_table *synct; | ||
2355 | unsigned char get_period = data->msginbuf[3]; | ||
2356 | unsigned char get_offset = data->msginbuf[4]; | ||
2357 | int entry; | ||
2358 | int syncnum; | ||
2359 | |||
2360 | nsp32_dbg(NSP32_DEBUG_MSGINOCCUR, "enter"); | ||
2361 | |||
2362 | synct = data->synct; | ||
2363 | syncnum = data->syncnum; | ||
2364 | |||
2365 | /* | ||
2366 | * If this inititor sent the SDTR message, then target responds SDTR, | ||
2367 | * initiator SYNCREG, ACKWIDTH from SDTR parameter. | ||
2368 | * Messages are not appropriate, then send back reject message. | ||
2369 | * If initiator did not send the SDTR, but target sends SDTR, | ||
2370 | * initiator calculator the appropriate parameter and send back SDTR. | ||
2371 | */ | ||
2372 | if (target->sync_flag & SDTR_INITIATOR) { | ||
2373 | /* | ||
2374 | * Initiator sent SDTR, the target responds and | ||
2375 | * send back negotiation SDTR. | ||
2376 | */ | ||
2377 | nsp32_dbg(NSP32_DEBUG_MSGINOCCUR, "target responds SDTR"); | ||
2378 | |||
2379 | target->sync_flag &= ~SDTR_INITIATOR; | ||
2380 | target->sync_flag |= SDTR_DONE; | ||
2381 | |||
2382 | /* | ||
2383 | * offset: | ||
2384 | */ | ||
2385 | if (get_offset > SYNC_OFFSET) { | ||
2386 | /* | ||
2387 | * Negotiation is failed, the target send back | ||
2388 | * unexpected offset value. | ||
2389 | */ | ||
2390 | goto reject; | ||
2391 | } | ||
2392 | |||
2393 | if (get_offset == ASYNC_OFFSET) { | ||
2394 | /* | ||
2395 | * Negotiation is succeeded, the target want | ||
2396 | * to fall back into asynchronous transfer mode. | ||
2397 | */ | ||
2398 | goto async; | ||
2399 | } | ||
2400 | |||
2401 | /* | ||
2402 | * period: | ||
2403 | * Check whether sync period is too short. If too short, | ||
2404 | * fall back to async mode. If it's ok, then investigate | ||
2405 | * the received sync period. If sync period is acceptable | ||
2406 | * between sync table start_period and end_period, then | ||
2407 | * set this I_T nexus as sent offset and period. | ||
2408 | * If it's not acceptable, send back reject and fall back | ||
2409 | * to async mode. | ||
2410 | */ | ||
2411 | if (get_period < data->synct[0].period_num) { | ||
2412 | /* | ||
2413 | * Negotiation is failed, the target send back | ||
2414 | * unexpected period value. | ||
2415 | */ | ||
2416 | goto reject; | ||
2417 | } | ||
2418 | |||
2419 | entry = nsp32_search_period_entry(data, target, get_period); | ||
2420 | |||
2421 | if (entry < 0) { | ||
2422 | /* | ||
2423 | * Target want to use long period which is not | ||
2424 | * acceptable NinjaSCSI-32Bi/UDE. | ||
2425 | */ | ||
2426 | goto reject; | ||
2427 | } | ||
2428 | |||
2429 | /* | ||
2430 | * Set new sync table and offset in this I_T nexus. | ||
2431 | */ | ||
2432 | nsp32_set_sync_entry(data, target, entry, get_offset); | ||
2433 | } else { | ||
2434 | /* Target send SDTR to initiator. */ | ||
2435 | nsp32_dbg(NSP32_DEBUG_MSGINOCCUR, "target send SDTR"); | ||
2436 | |||
2437 | target->sync_flag |= SDTR_INITIATOR; | ||
2438 | |||
2439 | /* offset: */ | ||
2440 | if (get_offset > SYNC_OFFSET) { | ||
2441 | /* send back as SYNC_OFFSET */ | ||
2442 | get_offset = SYNC_OFFSET; | ||
2443 | } | ||
2444 | |||
2445 | /* period: */ | ||
2446 | if (get_period < data->synct[0].period_num) { | ||
2447 | get_period = data->synct[0].period_num; | ||
2448 | } | ||
2449 | |||
2450 | entry = nsp32_search_period_entry(data, target, get_period); | ||
2451 | |||
2452 | if (get_offset == ASYNC_OFFSET || entry < 0) { | ||
2453 | nsp32_set_async(data, target); | ||
2454 | nsp32_build_sdtr(SCpnt, 0, ASYNC_OFFSET); | ||
2455 | } else { | ||
2456 | nsp32_set_sync_entry(data, target, entry, get_offset); | ||
2457 | nsp32_build_sdtr(SCpnt, get_period, get_offset); | ||
2458 | } | ||
2459 | } | ||
2460 | |||
2461 | target->period = get_period; | ||
2462 | nsp32_dbg(NSP32_DEBUG_MSGINOCCUR, "exit"); | ||
2463 | return; | ||
2464 | |||
2465 | reject: | ||
2466 | /* | ||
2467 | * If the current message is unacceptable, send back to the target | ||
2468 | * with reject message. | ||
2469 | */ | ||
2470 | nsp32_build_reject(SCpnt); | ||
2471 | |||
2472 | async: | ||
2473 | nsp32_set_async(data, target); /* set as ASYNC transfer mode */ | ||
2474 | |||
2475 | target->period = 0; | ||
2476 | nsp32_dbg(NSP32_DEBUG_MSGINOCCUR, "exit: set async"); | ||
2477 | return; | ||
2478 | } | ||
2479 | |||
2480 | |||
2481 | /* | ||
2482 | * Search config entry number matched in sync_table from given | ||
2483 | * target and speed period value. If failed to search, return negative value. | ||
2484 | */ | ||
2485 | static int nsp32_search_period_entry(nsp32_hw_data *data, | ||
2486 | nsp32_target *target, | ||
2487 | unsigned char period) | ||
2488 | { | ||
2489 | int i; | ||
2490 | |||
2491 | if (target->limit_entry >= data->syncnum) { | ||
2492 | nsp32_msg(KERN_ERR, "limit_entry exceeds syncnum!"); | ||
2493 | target->limit_entry = 0; | ||
2494 | } | ||
2495 | |||
2496 | for (i = target->limit_entry; i < data->syncnum; i++) { | ||
2497 | if (period >= data->synct[i].start_period && | ||
2498 | period <= data->synct[i].end_period) { | ||
2499 | break; | ||
2500 | } | ||
2501 | } | ||
2502 | |||
2503 | /* | ||
2504 | * Check given period value is over the sync_table value. | ||
2505 | * If so, return max value. | ||
2506 | */ | ||
2507 | if (i == data->syncnum) { | ||
2508 | i = -1; | ||
2509 | } | ||
2510 | |||
2511 | return i; | ||
2512 | } | ||
2513 | |||
2514 | |||
2515 | /* | ||
2516 | * target <-> initiator use ASYNC transfer | ||
2517 | */ | ||
2518 | static void nsp32_set_async(nsp32_hw_data *data, nsp32_target *target) | ||
2519 | { | ||
2520 | unsigned char period = data->synct[target->limit_entry].period_num; | ||
2521 | |||
2522 | target->offset = ASYNC_OFFSET; | ||
2523 | target->period = 0; | ||
2524 | target->syncreg = TO_SYNCREG(period, ASYNC_OFFSET); | ||
2525 | target->ackwidth = 0; | ||
2526 | target->sample_reg = 0; | ||
2527 | |||
2528 | nsp32_dbg(NSP32_DEBUG_SYNC, "set async"); | ||
2529 | } | ||
2530 | |||
2531 | |||
2532 | /* | ||
2533 | * target <-> initiator use maximum SYNC transfer | ||
2534 | */ | ||
2535 | static void nsp32_set_max_sync(nsp32_hw_data *data, | ||
2536 | nsp32_target *target, | ||
2537 | unsigned char *period, | ||
2538 | unsigned char *offset) | ||
2539 | { | ||
2540 | unsigned char period_num, ackwidth; | ||
2541 | |||
2542 | period_num = data->synct[target->limit_entry].period_num; | ||
2543 | *period = data->synct[target->limit_entry].start_period; | ||
2544 | ackwidth = data->synct[target->limit_entry].ackwidth; | ||
2545 | *offset = SYNC_OFFSET; | ||
2546 | |||
2547 | target->syncreg = TO_SYNCREG(period_num, *offset); | ||
2548 | target->ackwidth = ackwidth; | ||
2549 | target->offset = *offset; | ||
2550 | target->sample_reg = 0; /* disable SREQ sampling */ | ||
2551 | } | ||
2552 | |||
2553 | |||
2554 | /* | ||
2555 | * target <-> initiator use entry number speed | ||
2556 | */ | ||
2557 | static void nsp32_set_sync_entry(nsp32_hw_data *data, | ||
2558 | nsp32_target *target, | ||
2559 | int entry, | ||
2560 | unsigned char offset) | ||
2561 | { | ||
2562 | unsigned char period, ackwidth, sample_rate; | ||
2563 | |||
2564 | period = data->synct[entry].period_num; | ||
2565 | ackwidth = data->synct[entry].ackwidth; | ||
2566 | offset = offset; | ||
2567 | sample_rate = data->synct[entry].sample_rate; | ||
2568 | |||
2569 | target->syncreg = TO_SYNCREG(period, offset); | ||
2570 | target->ackwidth = ackwidth; | ||
2571 | target->offset = offset; | ||
2572 | target->sample_reg = sample_rate | SAMPLING_ENABLE; | ||
2573 | |||
2574 | nsp32_dbg(NSP32_DEBUG_SYNC, "set sync"); | ||
2575 | } | ||
2576 | |||
2577 | |||
2578 | /* | ||
2579 | * It waits until SCSI REQ becomes assertion or negation state. | ||
2580 | * | ||
2581 | * Note: If nsp32_msgin_occur is called, we asserts SCSI ACK. Then | ||
2582 | * connected target responds SCSI REQ negation. We have to wait | ||
2583 | * SCSI REQ becomes negation in order to negate SCSI ACK signal for | ||
2584 | * REQ-ACK handshake. | ||
2585 | */ | ||
2586 | static void nsp32_wait_req(nsp32_hw_data *data, int state) | ||
2587 | { | ||
2588 | unsigned int base = data->BaseAddress; | ||
2589 | int wait_time = 0; | ||
2590 | unsigned char bus, req_bit; | ||
2591 | |||
2592 | if (!((state == ASSERT) || (state == NEGATE))) { | ||
2593 | nsp32_msg(KERN_ERR, "unknown state designation"); | ||
2594 | } | ||
2595 | /* REQ is BIT(5) */ | ||
2596 | req_bit = (state == ASSERT ? BUSMON_REQ : 0); | ||
2597 | |||
2598 | do { | ||
2599 | bus = nsp32_read1(base, SCSI_BUS_MONITOR); | ||
2600 | if ((bus & BUSMON_REQ) == req_bit) { | ||
2601 | nsp32_dbg(NSP32_DEBUG_WAIT, | ||
2602 | "wait_time: %d", wait_time); | ||
2603 | return; | ||
2604 | } | ||
2605 | udelay(1); | ||
2606 | wait_time++; | ||
2607 | } while (wait_time < REQSACK_TIMEOUT_TIME); | ||
2608 | |||
2609 | nsp32_msg(KERN_WARNING, "wait REQ timeout, req_bit: 0x%x", req_bit); | ||
2610 | } | ||
2611 | |||
2612 | /* | ||
2613 | * It waits until SCSI SACK becomes assertion or negation state. | ||
2614 | */ | ||
2615 | static void nsp32_wait_sack(nsp32_hw_data *data, int state) | ||
2616 | { | ||
2617 | unsigned int base = data->BaseAddress; | ||
2618 | int wait_time = 0; | ||
2619 | unsigned char bus, ack_bit; | ||
2620 | |||
2621 | if (!((state == ASSERT) || (state == NEGATE))) { | ||
2622 | nsp32_msg(KERN_ERR, "unknown state designation"); | ||
2623 | } | ||
2624 | /* ACK is BIT(4) */ | ||
2625 | ack_bit = (state == ASSERT ? BUSMON_ACK : 0); | ||
2626 | |||
2627 | do { | ||
2628 | bus = nsp32_read1(base, SCSI_BUS_MONITOR); | ||
2629 | if ((bus & BUSMON_ACK) == ack_bit) { | ||
2630 | nsp32_dbg(NSP32_DEBUG_WAIT, | ||
2631 | "wait_time: %d", wait_time); | ||
2632 | return; | ||
2633 | } | ||
2634 | udelay(1); | ||
2635 | wait_time++; | ||
2636 | } while (wait_time < REQSACK_TIMEOUT_TIME); | ||
2637 | |||
2638 | nsp32_msg(KERN_WARNING, "wait SACK timeout, ack_bit: 0x%x", ack_bit); | ||
2639 | } | ||
2640 | |||
2641 | /* | ||
2642 | * assert SCSI ACK | ||
2643 | * | ||
2644 | * Note: SCSI ACK assertion needs with ACKENB=1, AUTODIRECTION=1. | ||
2645 | */ | ||
2646 | static void nsp32_sack_assert(nsp32_hw_data *data) | ||
2647 | { | ||
2648 | unsigned int base = data->BaseAddress; | ||
2649 | unsigned char busctrl; | ||
2650 | |||
2651 | busctrl = nsp32_read1(base, SCSI_BUS_CONTROL); | ||
2652 | busctrl |= (BUSCTL_ACK | AUTODIRECTION | ACKENB); | ||
2653 | nsp32_write1(base, SCSI_BUS_CONTROL, busctrl); | ||
2654 | } | ||
2655 | |||
2656 | /* | ||
2657 | * negate SCSI ACK | ||
2658 | */ | ||
2659 | static void nsp32_sack_negate(nsp32_hw_data *data) | ||
2660 | { | ||
2661 | unsigned int base = data->BaseAddress; | ||
2662 | unsigned char busctrl; | ||
2663 | |||
2664 | busctrl = nsp32_read1(base, SCSI_BUS_CONTROL); | ||
2665 | busctrl &= ~BUSCTL_ACK; | ||
2666 | nsp32_write1(base, SCSI_BUS_CONTROL, busctrl); | ||
2667 | } | ||
2668 | |||
2669 | |||
2670 | |||
2671 | /* | ||
2672 | * Note: n_io_port is defined as 0x7f because I/O register port is | ||
2673 | * assigned as: | ||
2674 | * 0x800-0x8ff: memory mapped I/O port | ||
2675 | * 0x900-0xbff: (map same 0x800-0x8ff I/O port image repeatedly) | ||
2676 | * 0xc00-0xfff: CardBus status registers | ||
2677 | */ | ||
2678 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
2679 | #define DETECT_OK 0 | ||
2680 | #define DETECT_NG 1 | ||
2681 | #define PCIDEV pdev | ||
2682 | static int nsp32_detect(struct pci_dev *pdev) | ||
2683 | #else | ||
2684 | #define DETECT_OK 1 | ||
2685 | #define DETECT_NG 0 | ||
2686 | #define PCIDEV (data->Pci) | ||
2687 | static int nsp32_detect(Scsi_Host_Template *sht) | ||
2688 | #endif | ||
2689 | { | ||
2690 | struct Scsi_Host *host; /* registered host structure */ | ||
2691 | struct resource *res; | ||
2692 | nsp32_hw_data *data; | ||
2693 | int ret; | ||
2694 | int i, j; | ||
2695 | |||
2696 | nsp32_dbg(NSP32_DEBUG_REGISTER, "enter"); | ||
2697 | |||
2698 | /* | ||
2699 | * register this HBA as SCSI device | ||
2700 | */ | ||
2701 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
2702 | host = scsi_host_alloc(&nsp32_template, sizeof(nsp32_hw_data)); | ||
2703 | #else | ||
2704 | host = scsi_register(sht, sizeof(nsp32_hw_data)); | ||
2705 | #endif | ||
2706 | if (host == NULL) { | ||
2707 | nsp32_msg (KERN_ERR, "failed to scsi register"); | ||
2708 | goto err; | ||
2709 | } | ||
2710 | |||
2711 | /* | ||
2712 | * set nsp32_hw_data | ||
2713 | */ | ||
2714 | data = (nsp32_hw_data *)host->hostdata; | ||
2715 | |||
2716 | memcpy(data, &nsp32_data_base, sizeof(nsp32_hw_data)); | ||
2717 | |||
2718 | host->irq = data->IrqNumber; | ||
2719 | host->io_port = data->BaseAddress; | ||
2720 | host->unique_id = data->BaseAddress; | ||
2721 | host->n_io_port = data->NumAddress; | ||
2722 | host->base = (unsigned long)data->MmioAddress; | ||
2723 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,63)) | ||
2724 | scsi_set_device(host, &PCIDEV->dev); | ||
2725 | #else | ||
2726 | scsi_set_pci_device(host, PCIDEV); | ||
2727 | #endif | ||
2728 | |||
2729 | data->Host = host; | ||
2730 | spin_lock_init(&(data->Lock)); | ||
2731 | |||
2732 | data->cur_lunt = NULL; | ||
2733 | data->cur_target = NULL; | ||
2734 | |||
2735 | /* | ||
2736 | * Bus master transfer mode is supported currently. | ||
2737 | */ | ||
2738 | data->trans_method = NSP32_TRANSFER_BUSMASTER; | ||
2739 | |||
2740 | /* | ||
2741 | * Set clock div, CLOCK_4 (HBA has own external clock, and | ||
2742 | * dividing * 100ns/4). | ||
2743 | * Currently CLOCK_4 has only tested, not for CLOCK_2/PCICLK yet. | ||
2744 | */ | ||
2745 | data->clock = CLOCK_4; | ||
2746 | |||
2747 | /* | ||
2748 | * Select appropriate nsp32_sync_table and set I_CLOCKDIV. | ||
2749 | */ | ||
2750 | switch (data->clock) { | ||
2751 | case CLOCK_4: | ||
2752 | /* If data->clock is CLOCK_4, then select 40M sync table. */ | ||
2753 | data->synct = nsp32_sync_table_40M; | ||
2754 | data->syncnum = ARRAY_SIZE(nsp32_sync_table_40M); | ||
2755 | break; | ||
2756 | case CLOCK_2: | ||
2757 | /* If data->clock is CLOCK_2, then select 20M sync table. */ | ||
2758 | data->synct = nsp32_sync_table_20M; | ||
2759 | data->syncnum = ARRAY_SIZE(nsp32_sync_table_20M); | ||
2760 | break; | ||
2761 | case PCICLK: | ||
2762 | /* If data->clock is PCICLK, then select pci sync table. */ | ||
2763 | data->synct = nsp32_sync_table_pci; | ||
2764 | data->syncnum = ARRAY_SIZE(nsp32_sync_table_pci); | ||
2765 | break; | ||
2766 | default: | ||
2767 | nsp32_msg(KERN_WARNING, | ||
2768 | "Invalid clock div is selected, set CLOCK_4."); | ||
2769 | /* Use default value CLOCK_4 */ | ||
2770 | data->clock = CLOCK_4; | ||
2771 | data->synct = nsp32_sync_table_40M; | ||
2772 | data->syncnum = ARRAY_SIZE(nsp32_sync_table_40M); | ||
2773 | } | ||
2774 | |||
2775 | /* | ||
2776 | * setup nsp32_lunt | ||
2777 | */ | ||
2778 | |||
2779 | /* | ||
2780 | * setup DMA | ||
2781 | */ | ||
2782 | if (pci_set_dma_mask(PCIDEV, 0xffffffffUL) != 0) { | ||
2783 | nsp32_msg (KERN_ERR, "failed to set PCI DMA mask"); | ||
2784 | goto scsi_unregister; | ||
2785 | } | ||
2786 | |||
2787 | /* | ||
2788 | * allocate autoparam DMA resource. | ||
2789 | */ | ||
2790 | data->autoparam = pci_alloc_consistent(PCIDEV, sizeof(nsp32_autoparam), &(data->auto_paddr)); | ||
2791 | if (data->autoparam == NULL) { | ||
2792 | nsp32_msg(KERN_ERR, "failed to allocate DMA memory"); | ||
2793 | goto scsi_unregister; | ||
2794 | } | ||
2795 | |||
2796 | /* | ||
2797 | * allocate scatter-gather DMA resource. | ||
2798 | */ | ||
2799 | data->sg_list = pci_alloc_consistent(PCIDEV, NSP32_SG_TABLE_SIZE, | ||
2800 | &(data->sg_paddr)); | ||
2801 | if (data->sg_list == NULL) { | ||
2802 | nsp32_msg(KERN_ERR, "failed to allocate DMA memory"); | ||
2803 | goto free_autoparam; | ||
2804 | } | ||
2805 | |||
2806 | for (i = 0; i < ARRAY_SIZE(data->lunt); i++) { | ||
2807 | for (j = 0; j < ARRAY_SIZE(data->lunt[0]); j++) { | ||
2808 | int offset = i * ARRAY_SIZE(data->lunt[0]) + j; | ||
2809 | nsp32_lunt tmp = { | ||
2810 | .SCpnt = NULL, | ||
2811 | .save_datp = 0, | ||
2812 | .msgin03 = FALSE, | ||
2813 | .sg_num = 0, | ||
2814 | .cur_entry = 0, | ||
2815 | .sglun = &(data->sg_list[offset]), | ||
2816 | .sglun_paddr = data->sg_paddr + (offset * sizeof(nsp32_sglun)), | ||
2817 | }; | ||
2818 | |||
2819 | data->lunt[i][j] = tmp; | ||
2820 | } | ||
2821 | } | ||
2822 | |||
2823 | /* | ||
2824 | * setup target | ||
2825 | */ | ||
2826 | for (i = 0; i < ARRAY_SIZE(data->target); i++) { | ||
2827 | nsp32_target *target = &(data->target[i]); | ||
2828 | |||
2829 | target->limit_entry = 0; | ||
2830 | target->sync_flag = 0; | ||
2831 | nsp32_set_async(data, target); | ||
2832 | } | ||
2833 | |||
2834 | /* | ||
2835 | * EEPROM check | ||
2836 | */ | ||
2837 | ret = nsp32_getprom_param(data); | ||
2838 | if (ret == FALSE) { | ||
2839 | data->resettime = 3; /* default 3 */ | ||
2840 | } | ||
2841 | |||
2842 | /* | ||
2843 | * setup HBA | ||
2844 | */ | ||
2845 | nsp32hw_init(data); | ||
2846 | |||
2847 | snprintf(data->info_str, sizeof(data->info_str), | ||
2848 | "NinjaSCSI-32Bi/UDE: irq %d, io 0x%lx+0x%x", | ||
2849 | host->irq, host->io_port, host->n_io_port); | ||
2850 | |||
2851 | /* | ||
2852 | * SCSI bus reset | ||
2853 | * | ||
2854 | * Note: It's important to reset SCSI bus in initialization phase. | ||
2855 | * NinjaSCSI-32Bi/UDE HBA EEPROM seems to exchange SDTR when | ||
2856 | * system is coming up, so SCSI devices connected to HBA is set as | ||
2857 | * un-asynchronous mode. It brings the merit that this HBA is | ||
2858 | * ready to start synchronous transfer without any preparation, | ||
2859 | * but we are difficult to control transfer speed. In addition, | ||
2860 | * it prevents device transfer speed from effecting EEPROM start-up | ||
2861 | * SDTR. NinjaSCSI-32Bi/UDE has the feature if EEPROM is set as | ||
2862 | * Auto Mode, then FAST-10M is selected when SCSI devices are | ||
2863 | * connected same or more than 4 devices. It should be avoided | ||
2864 | * depending on this specification. Thus, resetting the SCSI bus | ||
2865 | * restores all connected SCSI devices to asynchronous mode, then | ||
2866 | * this driver set SDTR safely later, and we can control all SCSI | ||
2867 | * device transfer mode. | ||
2868 | */ | ||
2869 | nsp32_do_bus_reset(data); | ||
2870 | |||
2871 | ret = request_irq(host->irq, do_nsp32_isr, | ||
2872 | SA_SHIRQ | SA_SAMPLE_RANDOM, "nsp32", data); | ||
2873 | if (ret < 0) { | ||
2874 | nsp32_msg(KERN_ERR, "Unable to allocate IRQ for NinjaSCSI32 " | ||
2875 | "SCSI PCI controller. Interrupt: %d", host->irq); | ||
2876 | goto free_sg_list; | ||
2877 | } | ||
2878 | |||
2879 | /* | ||
2880 | * PCI IO register | ||
2881 | */ | ||
2882 | res = request_region(host->io_port, host->n_io_port, "nsp32"); | ||
2883 | if (res == NULL) { | ||
2884 | nsp32_msg(KERN_ERR, | ||
2885 | "I/O region 0x%lx+0x%lx is already used", | ||
2886 | data->BaseAddress, data->NumAddress); | ||
2887 | goto free_irq; | ||
2888 | } | ||
2889 | |||
2890 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
2891 | scsi_add_host (host, &PCIDEV->dev); | ||
2892 | scsi_scan_host(host); | ||
2893 | #endif | ||
2894 | pci_set_drvdata(PCIDEV, host); | ||
2895 | return DETECT_OK; | ||
2896 | |||
2897 | free_irq: | ||
2898 | free_irq(host->irq, data); | ||
2899 | |||
2900 | free_sg_list: | ||
2901 | pci_free_consistent(PCIDEV, NSP32_SG_TABLE_SIZE, | ||
2902 | data->sg_list, data->sg_paddr); | ||
2903 | |||
2904 | free_autoparam: | ||
2905 | pci_free_consistent(PCIDEV, sizeof(nsp32_autoparam), | ||
2906 | data->autoparam, data->auto_paddr); | ||
2907 | |||
2908 | scsi_unregister: | ||
2909 | scsi_host_put(host); | ||
2910 | |||
2911 | err: | ||
2912 | return DETECT_NG; | ||
2913 | } | ||
2914 | #undef DETECT_OK | ||
2915 | #undef DETECT_NG | ||
2916 | #undef PCIDEV | ||
2917 | |||
2918 | static int nsp32_release(struct Scsi_Host *host) | ||
2919 | { | ||
2920 | nsp32_hw_data *data = (nsp32_hw_data *)host->hostdata; | ||
2921 | |||
2922 | if (data->autoparam) { | ||
2923 | pci_free_consistent(data->Pci, sizeof(nsp32_autoparam), | ||
2924 | data->autoparam, data->auto_paddr); | ||
2925 | } | ||
2926 | |||
2927 | if (data->sg_list) { | ||
2928 | pci_free_consistent(data->Pci, NSP32_SG_TABLE_SIZE, | ||
2929 | data->sg_list, data->sg_paddr); | ||
2930 | } | ||
2931 | |||
2932 | if (host->irq) { | ||
2933 | free_irq(host->irq, data); | ||
2934 | } | ||
2935 | |||
2936 | if (host->io_port && host->n_io_port) { | ||
2937 | release_region(host->io_port, host->n_io_port); | ||
2938 | } | ||
2939 | |||
2940 | if (data->MmioAddress) { | ||
2941 | iounmap(data->MmioAddress); | ||
2942 | } | ||
2943 | |||
2944 | return 0; | ||
2945 | } | ||
2946 | |||
2947 | static const char *nsp32_info(struct Scsi_Host *shpnt) | ||
2948 | { | ||
2949 | nsp32_hw_data *data = (nsp32_hw_data *)shpnt->hostdata; | ||
2950 | |||
2951 | return data->info_str; | ||
2952 | } | ||
2953 | |||
2954 | |||
2955 | /**************************************************************************** | ||
2956 | * error handler | ||
2957 | */ | ||
2958 | static int nsp32_eh_abort(struct scsi_cmnd *SCpnt) | ||
2959 | { | ||
2960 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
2961 | unsigned int base = SCpnt->device->host->io_port; | ||
2962 | |||
2963 | nsp32_msg(KERN_WARNING, "abort"); | ||
2964 | |||
2965 | if (data->cur_lunt->SCpnt == NULL) { | ||
2966 | nsp32_dbg(NSP32_DEBUG_BUSRESET, "abort failed"); | ||
2967 | return FAILED; | ||
2968 | } | ||
2969 | |||
2970 | if (data->cur_target->sync_flag & (SDTR_INITIATOR | SDTR_TARGET)) { | ||
2971 | /* reset SDTR negotiation */ | ||
2972 | data->cur_target->sync_flag = 0; | ||
2973 | nsp32_set_async(data, data->cur_target); | ||
2974 | } | ||
2975 | |||
2976 | nsp32_write2(base, TRANSFER_CONTROL, 0); | ||
2977 | nsp32_write2(base, BM_CNT, 0); | ||
2978 | |||
2979 | SCpnt->result = DID_ABORT << 16; | ||
2980 | nsp32_scsi_done(SCpnt); | ||
2981 | |||
2982 | nsp32_dbg(NSP32_DEBUG_BUSRESET, "abort success"); | ||
2983 | return SUCCESS; | ||
2984 | } | ||
2985 | |||
2986 | static int nsp32_eh_bus_reset(struct scsi_cmnd *SCpnt) | ||
2987 | { | ||
2988 | nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata; | ||
2989 | unsigned int base = SCpnt->device->host->io_port; | ||
2990 | |||
2991 | nsp32_msg(KERN_INFO, "Bus Reset"); | ||
2992 | nsp32_dbg(NSP32_DEBUG_BUSRESET, "SCpnt=0x%x", SCpnt); | ||
2993 | |||
2994 | nsp32_write2(base, IRQ_CONTROL, IRQ_CONTROL_ALL_IRQ_MASK); | ||
2995 | nsp32_do_bus_reset(data); | ||
2996 | nsp32_write2(base, IRQ_CONTROL, 0); | ||
2997 | |||
2998 | return SUCCESS; /* SCSI bus reset is succeeded at any time. */ | ||
2999 | } | ||
3000 | |||
3001 | static void nsp32_do_bus_reset(nsp32_hw_data *data) | ||
3002 | { | ||
3003 | unsigned int base = data->BaseAddress; | ||
3004 | unsigned short intrdat; | ||
3005 | int i; | ||
3006 | |||
3007 | nsp32_dbg(NSP32_DEBUG_BUSRESET, "in"); | ||
3008 | |||
3009 | /* | ||
3010 | * stop all transfer | ||
3011 | * clear TRANSFERCONTROL_BM_START | ||
3012 | * clear counter | ||
3013 | */ | ||
3014 | nsp32_write2(base, TRANSFER_CONTROL, 0); | ||
3015 | nsp32_write4(base, BM_CNT, 0); | ||
3016 | nsp32_write4(base, CLR_COUNTER, CLRCOUNTER_ALLMASK); | ||
3017 | |||
3018 | /* | ||
3019 | * fall back to asynchronous transfer mode | ||
3020 | * initialize SDTR negotiation flag | ||
3021 | */ | ||
3022 | for (i = 0; i < ARRAY_SIZE(data->target); i++) { | ||
3023 | nsp32_target *target = &data->target[i]; | ||
3024 | |||
3025 | target->sync_flag = 0; | ||
3026 | nsp32_set_async(data, target); | ||
3027 | } | ||
3028 | |||
3029 | /* | ||
3030 | * reset SCSI bus | ||
3031 | */ | ||
3032 | nsp32_write1(base, SCSI_BUS_CONTROL, BUSCTL_RST); | ||
3033 | udelay(RESET_HOLD_TIME); | ||
3034 | nsp32_write1(base, SCSI_BUS_CONTROL, 0); | ||
3035 | for(i = 0; i < 5; i++) { | ||
3036 | intrdat = nsp32_read2(base, IRQ_STATUS); /* dummy read */ | ||
3037 | nsp32_dbg(NSP32_DEBUG_BUSRESET, "irq:1: 0x%x", intrdat); | ||
3038 | } | ||
3039 | |||
3040 | data->CurrentSC = NULL; | ||
3041 | } | ||
3042 | |||
3043 | static int nsp32_eh_host_reset(struct scsi_cmnd *SCpnt) | ||
3044 | { | ||
3045 | struct Scsi_Host *host = SCpnt->device->host; | ||
3046 | unsigned int base = SCpnt->device->host->io_port; | ||
3047 | nsp32_hw_data *data = (nsp32_hw_data *)host->hostdata; | ||
3048 | |||
3049 | nsp32_msg(KERN_INFO, "Host Reset"); | ||
3050 | nsp32_dbg(NSP32_DEBUG_BUSRESET, "SCpnt=0x%x", SCpnt); | ||
3051 | |||
3052 | nsp32hw_init(data); | ||
3053 | nsp32_write2(base, IRQ_CONTROL, IRQ_CONTROL_ALL_IRQ_MASK); | ||
3054 | nsp32_do_bus_reset(data); | ||
3055 | nsp32_write2(base, IRQ_CONTROL, 0); | ||
3056 | |||
3057 | return SUCCESS; /* Host reset is succeeded at any time. */ | ||
3058 | } | ||
3059 | |||
3060 | |||
3061 | /************************************************************************** | ||
3062 | * EEPROM handler | ||
3063 | */ | ||
3064 | |||
3065 | /* | ||
3066 | * getting EEPROM parameter | ||
3067 | */ | ||
3068 | static int nsp32_getprom_param(nsp32_hw_data *data) | ||
3069 | { | ||
3070 | int vendor = data->pci_devid->vendor; | ||
3071 | int device = data->pci_devid->device; | ||
3072 | int ret, val, i; | ||
3073 | |||
3074 | /* | ||
3075 | * EEPROM checking. | ||
3076 | */ | ||
3077 | ret = nsp32_prom_read(data, 0x7e); | ||
3078 | if (ret != 0x55) { | ||
3079 | nsp32_msg(KERN_INFO, "No EEPROM detected: 0x%x", ret); | ||
3080 | return FALSE; | ||
3081 | } | ||
3082 | ret = nsp32_prom_read(data, 0x7f); | ||
3083 | if (ret != 0xaa) { | ||
3084 | nsp32_msg(KERN_INFO, "Invalid number: 0x%x", ret); | ||
3085 | return FALSE; | ||
3086 | } | ||
3087 | |||
3088 | /* | ||
3089 | * check EEPROM type | ||
3090 | */ | ||
3091 | if (vendor == PCI_VENDOR_ID_WORKBIT && | ||
3092 | device == PCI_DEVICE_ID_WORKBIT_STANDARD) { | ||
3093 | ret = nsp32_getprom_c16(data); | ||
3094 | } else if (vendor == PCI_VENDOR_ID_WORKBIT && | ||
3095 | device == PCI_DEVICE_ID_NINJASCSI_32BIB_LOGITEC) { | ||
3096 | ret = nsp32_getprom_at24(data); | ||
3097 | } else if (vendor == PCI_VENDOR_ID_WORKBIT && | ||
3098 | device == PCI_DEVICE_ID_NINJASCSI_32UDE_MELCO ) { | ||
3099 | ret = nsp32_getprom_at24(data); | ||
3100 | } else { | ||
3101 | nsp32_msg(KERN_WARNING, "Unknown EEPROM"); | ||
3102 | ret = FALSE; | ||
3103 | } | ||
3104 | |||
3105 | /* for debug : SPROM data full checking */ | ||
3106 | for (i = 0; i <= 0x1f; i++) { | ||
3107 | val = nsp32_prom_read(data, i); | ||
3108 | nsp32_dbg(NSP32_DEBUG_EEPROM, | ||
3109 | "rom address 0x%x : 0x%x", i, val); | ||
3110 | } | ||
3111 | |||
3112 | return ret; | ||
3113 | } | ||
3114 | |||
3115 | |||
3116 | /* | ||
3117 | * AT24C01A (Logitec: LHA-600S), AT24C02 (Melco Buffalo: IFC-USLP) data map: | ||
3118 | * | ||
3119 | * ROMADDR | ||
3120 | * 0x00 - 0x06 : Device Synchronous Transfer Period (SCSI ID 0 - 6) | ||
3121 | * Value 0x0: ASYNC, 0x0c: Ultra-20M, 0x19: Fast-10M | ||
3122 | * 0x07 : HBA Synchronous Transfer Period | ||
3123 | * Value 0: AutoSync, 1: Manual Setting | ||
3124 | * 0x08 - 0x0f : Not Used? (0x0) | ||
3125 | * 0x10 : Bus Termination | ||
3126 | * Value 0: Auto[ON], 1: ON, 2: OFF | ||
3127 | * 0x11 : Not Used? (0) | ||
3128 | * 0x12 : Bus Reset Delay Time (0x03) | ||
3129 | * 0x13 : Bootable CD Support | ||
3130 | * Value 0: Disable, 1: Enable | ||
3131 | * 0x14 : Device Scan | ||
3132 | * Bit 7 6 5 4 3 2 1 0 | ||
3133 | * | <-----------------> | ||
3134 | * | SCSI ID: Value 0: Skip, 1: YES | ||
3135 | * |-> Value 0: ALL scan, Value 1: Manual | ||
3136 | * 0x15 - 0x1b : Not Used? (0) | ||
3137 | * 0x1c : Constant? (0x01) (clock div?) | ||
3138 | * 0x1d - 0x7c : Not Used (0xff) | ||
3139 | * 0x7d : Not Used? (0xff) | ||
3140 | * 0x7e : Constant (0x55), Validity signature | ||
3141 | * 0x7f : Constant (0xaa), Validity signature | ||
3142 | */ | ||
3143 | static int nsp32_getprom_at24(nsp32_hw_data *data) | ||
3144 | { | ||
3145 | int ret, i; | ||
3146 | int auto_sync; | ||
3147 | nsp32_target *target; | ||
3148 | int entry; | ||
3149 | |||
3150 | /* | ||
3151 | * Reset time which is designated by EEPROM. | ||
3152 | * | ||
3153 | * TODO: Not used yet. | ||
3154 | */ | ||
3155 | data->resettime = nsp32_prom_read(data, 0x12); | ||
3156 | |||
3157 | /* | ||
3158 | * HBA Synchronous Transfer Period | ||
3159 | * | ||
3160 | * Note: auto_sync = 0: auto, 1: manual. Ninja SCSI HBA spec says | ||
3161 | * that if auto_sync is 0 (auto), and connected SCSI devices are | ||
3162 | * same or lower than 3, then transfer speed is set as ULTRA-20M. | ||
3163 | * On the contrary if connected SCSI devices are same or higher | ||
3164 | * than 4, then transfer speed is set as FAST-10M. | ||
3165 | * | ||
3166 | * I break this rule. The number of connected SCSI devices are | ||
3167 | * only ignored. If auto_sync is 0 (auto), then transfer speed is | ||
3168 | * forced as ULTRA-20M. | ||
3169 | */ | ||
3170 | ret = nsp32_prom_read(data, 0x07); | ||
3171 | switch (ret) { | ||
3172 | case 0: | ||
3173 | auto_sync = TRUE; | ||
3174 | break; | ||
3175 | case 1: | ||
3176 | auto_sync = FALSE; | ||
3177 | break; | ||
3178 | default: | ||
3179 | nsp32_msg(KERN_WARNING, | ||
3180 | "Unsupported Auto Sync mode. Fall back to manual mode."); | ||
3181 | auto_sync = TRUE; | ||
3182 | } | ||
3183 | |||
3184 | if (trans_mode == ULTRA20M_MODE) { | ||
3185 | auto_sync = TRUE; | ||
3186 | } | ||
3187 | |||
3188 | /* | ||
3189 | * each device Synchronous Transfer Period | ||
3190 | */ | ||
3191 | for (i = 0; i < NSP32_HOST_SCSIID; i++) { | ||
3192 | target = &data->target[i]; | ||
3193 | if (auto_sync == TRUE) { | ||
3194 | target->limit_entry = 0; /* set as ULTRA20M */ | ||
3195 | } else { | ||
3196 | ret = nsp32_prom_read(data, i); | ||
3197 | entry = nsp32_search_period_entry(data, target, ret); | ||
3198 | if (entry < 0) { | ||
3199 | /* search failed... set maximum speed */ | ||
3200 | entry = 0; | ||
3201 | } | ||
3202 | target->limit_entry = entry; | ||
3203 | } | ||
3204 | } | ||
3205 | |||
3206 | return TRUE; | ||
3207 | } | ||
3208 | |||
3209 | |||
3210 | /* | ||
3211 | * C16 110 (I-O Data: SC-NBD) data map: | ||
3212 | * | ||
3213 | * ROMADDR | ||
3214 | * 0x00 - 0x06 : Device Synchronous Transfer Period (SCSI ID 0 - 6) | ||
3215 | * Value 0x0: 20MB/S, 0x1: 10MB/S, 0x2: 5MB/S, 0x3: ASYNC | ||
3216 | * 0x07 : 0 (HBA Synchronous Transfer Period: Auto Sync) | ||
3217 | * 0x08 - 0x0f : Not Used? (0x0) | ||
3218 | * 0x10 : Transfer Mode | ||
3219 | * Value 0: PIO, 1: Busmater | ||
3220 | * 0x11 : Bus Reset Delay Time (0x00-0x20) | ||
3221 | * 0x12 : Bus Termination | ||
3222 | * Value 0: Disable, 1: Enable | ||
3223 | * 0x13 - 0x19 : Disconnection | ||
3224 | * Value 0: Disable, 1: Enable | ||
3225 | * 0x1a - 0x7c : Not Used? (0) | ||
3226 | * 0x7d : Not Used? (0xf8) | ||
3227 | * 0x7e : Constant (0x55), Validity signature | ||
3228 | * 0x7f : Constant (0xaa), Validity signature | ||
3229 | */ | ||
3230 | static int nsp32_getprom_c16(nsp32_hw_data *data) | ||
3231 | { | ||
3232 | int ret, i; | ||
3233 | nsp32_target *target; | ||
3234 | int entry, val; | ||
3235 | |||
3236 | /* | ||
3237 | * Reset time which is designated by EEPROM. | ||
3238 | * | ||
3239 | * TODO: Not used yet. | ||
3240 | */ | ||
3241 | data->resettime = nsp32_prom_read(data, 0x11); | ||
3242 | |||
3243 | /* | ||
3244 | * each device Synchronous Transfer Period | ||
3245 | */ | ||
3246 | for (i = 0; i < NSP32_HOST_SCSIID; i++) { | ||
3247 | target = &data->target[i]; | ||
3248 | ret = nsp32_prom_read(data, i); | ||
3249 | switch (ret) { | ||
3250 | case 0: /* 20MB/s */ | ||
3251 | val = 0x0c; | ||
3252 | break; | ||
3253 | case 1: /* 10MB/s */ | ||
3254 | val = 0x19; | ||
3255 | break; | ||
3256 | case 2: /* 5MB/s */ | ||
3257 | val = 0x32; | ||
3258 | break; | ||
3259 | case 3: /* ASYNC */ | ||
3260 | val = 0x00; | ||
3261 | break; | ||
3262 | default: /* default 20MB/s */ | ||
3263 | val = 0x0c; | ||
3264 | break; | ||
3265 | } | ||
3266 | entry = nsp32_search_period_entry(data, target, val); | ||
3267 | if (entry < 0 || trans_mode == ULTRA20M_MODE) { | ||
3268 | /* search failed... set maximum speed */ | ||
3269 | entry = 0; | ||
3270 | } | ||
3271 | target->limit_entry = entry; | ||
3272 | } | ||
3273 | |||
3274 | return TRUE; | ||
3275 | } | ||
3276 | |||
3277 | |||
3278 | /* | ||
3279 | * Atmel AT24C01A (drived in 5V) serial EEPROM routines | ||
3280 | */ | ||
3281 | static int nsp32_prom_read(nsp32_hw_data *data, int romaddr) | ||
3282 | { | ||
3283 | int i, val; | ||
3284 | |||
3285 | /* start condition */ | ||
3286 | nsp32_prom_start(data); | ||
3287 | |||
3288 | /* device address */ | ||
3289 | nsp32_prom_write_bit(data, 1); /* 1 */ | ||
3290 | nsp32_prom_write_bit(data, 0); /* 0 */ | ||
3291 | nsp32_prom_write_bit(data, 1); /* 1 */ | ||
3292 | nsp32_prom_write_bit(data, 0); /* 0 */ | ||
3293 | nsp32_prom_write_bit(data, 0); /* A2: 0 (GND) */ | ||
3294 | nsp32_prom_write_bit(data, 0); /* A1: 0 (GND) */ | ||
3295 | nsp32_prom_write_bit(data, 0); /* A0: 0 (GND) */ | ||
3296 | |||
3297 | /* R/W: W for dummy write */ | ||
3298 | nsp32_prom_write_bit(data, 0); | ||
3299 | |||
3300 | /* ack */ | ||
3301 | nsp32_prom_write_bit(data, 0); | ||
3302 | |||
3303 | /* word address */ | ||
3304 | for (i = 7; i >= 0; i--) { | ||
3305 | nsp32_prom_write_bit(data, ((romaddr >> i) & 1)); | ||
3306 | } | ||
3307 | |||
3308 | /* ack */ | ||
3309 | nsp32_prom_write_bit(data, 0); | ||
3310 | |||
3311 | /* start condition */ | ||
3312 | nsp32_prom_start(data); | ||
3313 | |||
3314 | /* device address */ | ||
3315 | nsp32_prom_write_bit(data, 1); /* 1 */ | ||
3316 | nsp32_prom_write_bit(data, 0); /* 0 */ | ||
3317 | nsp32_prom_write_bit(data, 1); /* 1 */ | ||
3318 | nsp32_prom_write_bit(data, 0); /* 0 */ | ||
3319 | nsp32_prom_write_bit(data, 0); /* A2: 0 (GND) */ | ||
3320 | nsp32_prom_write_bit(data, 0); /* A1: 0 (GND) */ | ||
3321 | nsp32_prom_write_bit(data, 0); /* A0: 0 (GND) */ | ||
3322 | |||
3323 | /* R/W: R */ | ||
3324 | nsp32_prom_write_bit(data, 1); | ||
3325 | |||
3326 | /* ack */ | ||
3327 | nsp32_prom_write_bit(data, 0); | ||
3328 | |||
3329 | /* data... */ | ||
3330 | val = 0; | ||
3331 | for (i = 7; i >= 0; i--) { | ||
3332 | val += (nsp32_prom_read_bit(data) << i); | ||
3333 | } | ||
3334 | |||
3335 | /* no ack */ | ||
3336 | nsp32_prom_write_bit(data, 1); | ||
3337 | |||
3338 | /* stop condition */ | ||
3339 | nsp32_prom_stop(data); | ||
3340 | |||
3341 | return val; | ||
3342 | } | ||
3343 | |||
3344 | static void nsp32_prom_set(nsp32_hw_data *data, int bit, int val) | ||
3345 | { | ||
3346 | int base = data->BaseAddress; | ||
3347 | int tmp; | ||
3348 | |||
3349 | tmp = nsp32_index_read1(base, SERIAL_ROM_CTL); | ||
3350 | |||
3351 | if (val == 0) { | ||
3352 | tmp &= ~bit; | ||
3353 | } else { | ||
3354 | tmp |= bit; | ||
3355 | } | ||
3356 | |||
3357 | nsp32_index_write1(base, SERIAL_ROM_CTL, tmp); | ||
3358 | |||
3359 | udelay(10); | ||
3360 | } | ||
3361 | |||
3362 | static int nsp32_prom_get(nsp32_hw_data *data, int bit) | ||
3363 | { | ||
3364 | int base = data->BaseAddress; | ||
3365 | int tmp, ret; | ||
3366 | |||
3367 | if (bit != SDA) { | ||
3368 | nsp32_msg(KERN_ERR, "return value is not appropriate"); | ||
3369 | return 0; | ||
3370 | } | ||
3371 | |||
3372 | |||
3373 | tmp = nsp32_index_read1(base, SERIAL_ROM_CTL) & bit; | ||
3374 | |||
3375 | if (tmp == 0) { | ||
3376 | ret = 0; | ||
3377 | } else { | ||
3378 | ret = 1; | ||
3379 | } | ||
3380 | |||
3381 | udelay(10); | ||
3382 | |||
3383 | return ret; | ||
3384 | } | ||
3385 | |||
3386 | static void nsp32_prom_start (nsp32_hw_data *data) | ||
3387 | { | ||
3388 | /* start condition */ | ||
3389 | nsp32_prom_set(data, SCL, 1); | ||
3390 | nsp32_prom_set(data, SDA, 1); | ||
3391 | nsp32_prom_set(data, ENA, 1); /* output mode */ | ||
3392 | nsp32_prom_set(data, SDA, 0); /* keeping SCL=1 and transiting | ||
3393 | * SDA 1->0 is start condition */ | ||
3394 | nsp32_prom_set(data, SCL, 0); | ||
3395 | } | ||
3396 | |||
3397 | static void nsp32_prom_stop (nsp32_hw_data *data) | ||
3398 | { | ||
3399 | /* stop condition */ | ||
3400 | nsp32_prom_set(data, SCL, 1); | ||
3401 | nsp32_prom_set(data, SDA, 0); | ||
3402 | nsp32_prom_set(data, ENA, 1); /* output mode */ | ||
3403 | nsp32_prom_set(data, SDA, 1); | ||
3404 | nsp32_prom_set(data, SCL, 0); | ||
3405 | } | ||
3406 | |||
3407 | static void nsp32_prom_write_bit(nsp32_hw_data *data, int val) | ||
3408 | { | ||
3409 | /* write */ | ||
3410 | nsp32_prom_set(data, SDA, val); | ||
3411 | nsp32_prom_set(data, SCL, 1 ); | ||
3412 | nsp32_prom_set(data, SCL, 0 ); | ||
3413 | } | ||
3414 | |||
3415 | static int nsp32_prom_read_bit(nsp32_hw_data *data) | ||
3416 | { | ||
3417 | int val; | ||
3418 | |||
3419 | /* read */ | ||
3420 | nsp32_prom_set(data, ENA, 0); /* input mode */ | ||
3421 | nsp32_prom_set(data, SCL, 1); | ||
3422 | |||
3423 | val = nsp32_prom_get(data, SDA); | ||
3424 | |||
3425 | nsp32_prom_set(data, SCL, 0); | ||
3426 | nsp32_prom_set(data, ENA, 1); /* output mode */ | ||
3427 | |||
3428 | return val; | ||
3429 | } | ||
3430 | |||
3431 | |||
3432 | /************************************************************************** | ||
3433 | * Power Management | ||
3434 | */ | ||
3435 | #ifdef CONFIG_PM | ||
3436 | |||
3437 | /* Device suspended */ | ||
3438 | static int nsp32_suspend(struct pci_dev *pdev, u32 state) | ||
3439 | { | ||
3440 | struct Scsi_Host *host = pci_get_drvdata(pdev); | ||
3441 | |||
3442 | nsp32_msg(KERN_INFO, "pci-suspend: pdev=0x%p, state=%ld, slot=%s, host=0x%p", pdev, state, pci_name(pdev), host); | ||
3443 | |||
3444 | pci_save_state (pdev); | ||
3445 | pci_disable_device (pdev); | ||
3446 | pci_set_power_state(pdev, state); | ||
3447 | |||
3448 | return 0; | ||
3449 | } | ||
3450 | |||
3451 | /* Device woken up */ | ||
3452 | static int nsp32_resume(struct pci_dev *pdev) | ||
3453 | { | ||
3454 | struct Scsi_Host *host = pci_get_drvdata(pdev); | ||
3455 | nsp32_hw_data *data = (nsp32_hw_data *)host->hostdata; | ||
3456 | unsigned short reg; | ||
3457 | |||
3458 | nsp32_msg(KERN_INFO, "pci-resume: pdev=0x%p, slot=%s, host=0x%p", pdev, pci_name(pdev), host); | ||
3459 | |||
3460 | pci_set_power_state(pdev, 0); | ||
3461 | pci_enable_wake (pdev, 0, 0); | ||
3462 | pci_restore_state (pdev); | ||
3463 | |||
3464 | reg = nsp32_read2(data->BaseAddress, INDEX_REG); | ||
3465 | |||
3466 | nsp32_msg(KERN_INFO, "io=0x%x reg=0x%x", data->BaseAddress, reg); | ||
3467 | |||
3468 | if (reg == 0xffff) { | ||
3469 | nsp32_msg(KERN_INFO, "missing device. abort resume."); | ||
3470 | return 0; | ||
3471 | } | ||
3472 | |||
3473 | nsp32hw_init (data); | ||
3474 | nsp32_do_bus_reset(data); | ||
3475 | |||
3476 | nsp32_msg(KERN_INFO, "resume success"); | ||
3477 | |||
3478 | return 0; | ||
3479 | } | ||
3480 | |||
3481 | /* Enable wake event */ | ||
3482 | static int nsp32_enable_wake(struct pci_dev *pdev, u32 state, int enable) | ||
3483 | { | ||
3484 | struct Scsi_Host *host = pci_get_drvdata(pdev); | ||
3485 | |||
3486 | nsp32_msg(KERN_INFO, "pci-enable_wake: stub, pdev=0x%p, enable=%d, slot=%s, host=0x%p", pdev, enable, pci_name(pdev), host); | ||
3487 | |||
3488 | return 0; | ||
3489 | } | ||
3490 | #endif | ||
3491 | |||
3492 | /************************************************************************ | ||
3493 | * PCI/Cardbus probe/remove routine | ||
3494 | */ | ||
3495 | static int __devinit nsp32_probe(struct pci_dev *pdev, const struct pci_device_id *id) | ||
3496 | { | ||
3497 | int ret; | ||
3498 | nsp32_hw_data *data = &nsp32_data_base; | ||
3499 | |||
3500 | nsp32_dbg(NSP32_DEBUG_REGISTER, "enter"); | ||
3501 | |||
3502 | ret = pci_enable_device(pdev); | ||
3503 | if (ret) { | ||
3504 | nsp32_msg(KERN_ERR, "failed to enable pci device"); | ||
3505 | return ret; | ||
3506 | } | ||
3507 | |||
3508 | data->Pci = pdev; | ||
3509 | data->pci_devid = id; | ||
3510 | data->IrqNumber = pdev->irq; | ||
3511 | data->BaseAddress = pci_resource_start(pdev, 0); | ||
3512 | data->NumAddress = pci_resource_len (pdev, 0); | ||
3513 | data->MmioAddress = ioremap_nocache(pci_resource_start(pdev, 1), | ||
3514 | pci_resource_len (pdev, 1)); | ||
3515 | data->MmioLength = pci_resource_len (pdev, 1); | ||
3516 | |||
3517 | pci_set_master(pdev); | ||
3518 | |||
3519 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
3520 | ret = nsp32_detect(pdev); | ||
3521 | #else | ||
3522 | ret = scsi_register_host(&nsp32_template); | ||
3523 | #endif | ||
3524 | |||
3525 | nsp32_msg(KERN_INFO, "irq: %i mmio: %p+0x%lx slot: %s model: %s", | ||
3526 | pdev->irq, | ||
3527 | data->MmioAddress, data->MmioLength, | ||
3528 | pci_name(pdev), | ||
3529 | nsp32_model[id->driver_data]); | ||
3530 | |||
3531 | nsp32_dbg(NSP32_DEBUG_REGISTER, "exit %d", ret); | ||
3532 | |||
3533 | return ret; | ||
3534 | } | ||
3535 | |||
3536 | static void __devexit nsp32_remove(struct pci_dev *pdev) | ||
3537 | { | ||
3538 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
3539 | struct Scsi_Host *host = pci_get_drvdata(pdev); | ||
3540 | #endif | ||
3541 | |||
3542 | nsp32_dbg(NSP32_DEBUG_REGISTER, "enter"); | ||
3543 | |||
3544 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | ||
3545 | scsi_remove_host(host); | ||
3546 | |||
3547 | nsp32_release(host); | ||
3548 | |||
3549 | scsi_host_put(host); | ||
3550 | #else | ||
3551 | scsi_unregister_host(&nsp32_template); | ||
3552 | #endif | ||
3553 | } | ||
3554 | |||
3555 | |||
3556 | |||
3557 | static struct pci_driver nsp32_driver = { | ||
3558 | .name = "nsp32", | ||
3559 | .id_table = nsp32_pci_table, | ||
3560 | .probe = nsp32_probe, | ||
3561 | .remove = __devexit_p(nsp32_remove), | ||
3562 | #ifdef CONFIG_PM | ||
3563 | .suspend = nsp32_suspend, | ||
3564 | .resume = nsp32_resume, | ||
3565 | .enable_wake = nsp32_enable_wake, | ||
3566 | #endif | ||
3567 | }; | ||
3568 | |||
3569 | /********************************************************************* | ||
3570 | * Moule entry point | ||
3571 | */ | ||
3572 | static int __init init_nsp32(void) { | ||
3573 | nsp32_msg(KERN_INFO, "loading..."); | ||
3574 | return pci_module_init(&nsp32_driver); | ||
3575 | } | ||
3576 | |||
3577 | static void __exit exit_nsp32(void) { | ||
3578 | nsp32_msg(KERN_INFO, "unloading..."); | ||
3579 | pci_unregister_driver(&nsp32_driver); | ||
3580 | } | ||
3581 | |||
3582 | module_init(init_nsp32); | ||
3583 | module_exit(exit_nsp32); | ||
3584 | |||
3585 | /* end */ | ||