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1b0e6146 DS |
1 | /****************************************************************************** |
2 | * cxacru.c - driver for USB ADSL modems based on | |
3 | * Conexant AccessRunner chipset | |
4 | * | |
5 | * Copyright (C) 2004 David Woodhouse, Duncan Sands, Roman Kagan | |
6 | * Copyright (C) 2005 Duncan Sands, Roman Kagan (rkagan % mail ! ru) | |
6a02c996 | 7 | * Copyright (C) 2007 Simon Arlott |
1b0e6146 DS |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the Free | |
11 | * Software Foundation; either version 2 of the License, or (at your option) | |
12 | * any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
15 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
17 | * more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along with | |
20 | * this program; if not, write to the Free Software Foundation, Inc., 59 | |
21 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
22 | * | |
23 | ******************************************************************************/ | |
24 | ||
25 | /* | |
26 | * Credit is due for Josep Comas, who created the original patch to speedtch.c | |
27 | * to support the different padding used by the AccessRunner (now generalized | |
28 | * into usbatm), and the userspace firmware loading utility. | |
29 | */ | |
30 | ||
31 | #include <linux/module.h> | |
32 | #include <linux/moduleparam.h> | |
33 | #include <linux/kernel.h> | |
34 | #include <linux/timer.h> | |
35 | #include <linux/errno.h> | |
36 | #include <linux/slab.h> | |
37 | #include <linux/init.h> | |
fa70fe44 | 38 | #include <linux/device.h> |
1b0e6146 | 39 | #include <linux/firmware.h> |
ab3c81ff | 40 | #include <linux/mutex.h> |
fd05e720 | 41 | #include <asm/unaligned.h> |
1b0e6146 DS |
42 | |
43 | #include "usbatm.h" | |
44 | ||
fa70fe44 SA |
45 | #define DRIVER_AUTHOR "Roman Kagan, David Woodhouse, Duncan Sands, Simon Arlott" |
46 | #define DRIVER_VERSION "0.3" | |
1b0e6146 DS |
47 | #define DRIVER_DESC "Conexant AccessRunner ADSL USB modem driver" |
48 | ||
49 | static const char cxacru_driver_name[] = "cxacru"; | |
50 | ||
51 | #define CXACRU_EP_CMD 0x01 /* Bulk/interrupt in/out */ | |
52 | #define CXACRU_EP_DATA 0x02 /* Bulk in/out */ | |
53 | ||
54 | #define CMD_PACKET_SIZE 64 /* Should be maxpacket(ep)? */ | |
55 | ||
56 | /* Addresses */ | |
57 | #define PLLFCLK_ADDR 0x00350068 | |
58 | #define PLLBCLK_ADDR 0x0035006c | |
59 | #define SDRAMEN_ADDR 0x00350010 | |
60 | #define FW_ADDR 0x00801000 | |
61 | #define BR_ADDR 0x00180600 | |
62 | #define SIG_ADDR 0x00180500 | |
63 | #define BR_STACK_ADDR 0x00187f10 | |
64 | ||
65 | /* Values */ | |
66 | #define SDRAM_ENA 0x1 | |
67 | ||
68 | #define CMD_TIMEOUT 2000 /* msecs */ | |
fa70fe44 | 69 | #define POLL_INTERVAL 1 /* secs */ |
1b0e6146 DS |
70 | |
71 | /* commands for interaction with the modem through the control channel before | |
72 | * firmware is loaded */ | |
73 | enum cxacru_fw_request { | |
74 | FW_CMD_ERR, | |
75 | FW_GET_VER, | |
76 | FW_READ_MEM, | |
77 | FW_WRITE_MEM, | |
78 | FW_RMW_MEM, | |
79 | FW_CHECKSUM_MEM, | |
80 | FW_GOTO_MEM, | |
81 | }; | |
82 | ||
83 | /* commands for interaction with the modem through the control channel once | |
84 | * firmware is loaded */ | |
85 | enum cxacru_cm_request { | |
86 | CM_REQUEST_UNDEFINED = 0x80, | |
87 | CM_REQUEST_TEST, | |
88 | CM_REQUEST_CHIP_GET_MAC_ADDRESS, | |
89 | CM_REQUEST_CHIP_GET_DP_VERSIONS, | |
90 | CM_REQUEST_CHIP_ADSL_LINE_START, | |
91 | CM_REQUEST_CHIP_ADSL_LINE_STOP, | |
92 | CM_REQUEST_CHIP_ADSL_LINE_GET_STATUS, | |
93 | CM_REQUEST_CHIP_ADSL_LINE_GET_SPEED, | |
94 | CM_REQUEST_CARD_INFO_GET, | |
95 | CM_REQUEST_CARD_DATA_GET, | |
96 | CM_REQUEST_CARD_DATA_SET, | |
97 | CM_REQUEST_COMMAND_HW_IO, | |
98 | CM_REQUEST_INTERFACE_HW_IO, | |
99 | CM_REQUEST_CARD_SERIAL_DATA_PATH_GET, | |
100 | CM_REQUEST_CARD_SERIAL_DATA_PATH_SET, | |
101 | CM_REQUEST_CARD_CONTROLLER_VERSION_GET, | |
102 | CM_REQUEST_CARD_GET_STATUS, | |
103 | CM_REQUEST_CARD_GET_MAC_ADDRESS, | |
104 | CM_REQUEST_CARD_GET_DATA_LINK_STATUS, | |
105 | CM_REQUEST_MAX, | |
106 | }; | |
107 | ||
108 | /* reply codes to the commands above */ | |
109 | enum cxacru_cm_status { | |
110 | CM_STATUS_UNDEFINED, | |
111 | CM_STATUS_SUCCESS, | |
112 | CM_STATUS_ERROR, | |
113 | CM_STATUS_UNSUPPORTED, | |
114 | CM_STATUS_UNIMPLEMENTED, | |
115 | CM_STATUS_PARAMETER_ERROR, | |
116 | CM_STATUS_DBG_LOOPBACK, | |
117 | CM_STATUS_MAX, | |
118 | }; | |
119 | ||
120 | /* indices into CARD_INFO_GET return array */ | |
121 | enum cxacru_info_idx { | |
122 | CXINF_DOWNSTREAM_RATE, | |
123 | CXINF_UPSTREAM_RATE, | |
124 | CXINF_LINK_STATUS, | |
125 | CXINF_LINE_STATUS, | |
126 | CXINF_MAC_ADDRESS_HIGH, | |
127 | CXINF_MAC_ADDRESS_LOW, | |
128 | CXINF_UPSTREAM_SNR_MARGIN, | |
129 | CXINF_DOWNSTREAM_SNR_MARGIN, | |
130 | CXINF_UPSTREAM_ATTENUATION, | |
131 | CXINF_DOWNSTREAM_ATTENUATION, | |
132 | CXINF_TRANSMITTER_POWER, | |
133 | CXINF_UPSTREAM_BITS_PER_FRAME, | |
134 | CXINF_DOWNSTREAM_BITS_PER_FRAME, | |
135 | CXINF_STARTUP_ATTEMPTS, | |
136 | CXINF_UPSTREAM_CRC_ERRORS, | |
137 | CXINF_DOWNSTREAM_CRC_ERRORS, | |
138 | CXINF_UPSTREAM_FEC_ERRORS, | |
139 | CXINF_DOWNSTREAM_FEC_ERRORS, | |
140 | CXINF_UPSTREAM_HEC_ERRORS, | |
141 | CXINF_DOWNSTREAM_HEC_ERRORS, | |
142 | CXINF_LINE_STARTABLE, | |
143 | CXINF_MODULATION, | |
144 | CXINF_ADSL_HEADEND, | |
145 | CXINF_ADSL_HEADEND_ENVIRONMENT, | |
146 | CXINF_CONTROLLER_VERSION, | |
147 | /* dunno what the missing two mean */ | |
148 | CXINF_MAX = 0x1c, | |
149 | }; | |
150 | ||
6a02c996 SA |
151 | enum cxacru_poll_state { |
152 | CXPOLL_STOPPING, | |
153 | CXPOLL_STOPPED, | |
154 | CXPOLL_POLLING, | |
155 | CXPOLL_SHUTDOWN | |
156 | }; | |
157 | ||
1b0e6146 DS |
158 | struct cxacru_modem_type { |
159 | u32 pll_f_clk; | |
160 | u32 pll_b_clk; | |
161 | int boot_rom_patch; | |
162 | }; | |
163 | ||
164 | struct cxacru_data { | |
165 | struct usbatm_data *usbatm; | |
166 | ||
167 | const struct cxacru_modem_type *modem_type; | |
168 | ||
169 | int line_status; | |
6a02c996 SA |
170 | struct mutex adsl_state_serialize; |
171 | int adsl_status; | |
c4028958 | 172 | struct delayed_work poll_work; |
fa70fe44 | 173 | u32 card_info[CXINF_MAX]; |
6a02c996 | 174 | struct mutex poll_state_serialize; |
87e71b47 | 175 | enum cxacru_poll_state poll_state; |
1b0e6146 DS |
176 | |
177 | /* contol handles */ | |
ab3c81ff | 178 | struct mutex cm_serialize; |
1b0e6146 DS |
179 | u8 *rcv_buf; |
180 | u8 *snd_buf; | |
181 | struct urb *rcv_urb; | |
182 | struct urb *snd_urb; | |
183 | struct completion rcv_done; | |
184 | struct completion snd_done; | |
185 | }; | |
186 | ||
6a02c996 SA |
187 | static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, |
188 | u8 *wdata, int wsize, u8 *rdata, int rsize); | |
189 | static void cxacru_poll_status(struct work_struct *work); | |
190 | ||
fa70fe44 SA |
191 | /* Card info exported through sysfs */ |
192 | #define CXACRU__ATTR_INIT(_name) \ | |
193 | static DEVICE_ATTR(_name, S_IRUGO, cxacru_sysfs_show_##_name, NULL) | |
194 | ||
6a02c996 SA |
195 | #define CXACRU_CMD_INIT(_name) \ |
196 | static DEVICE_ATTR(_name, S_IWUSR | S_IRUGO, \ | |
197 | cxacru_sysfs_show_##_name, cxacru_sysfs_store_##_name) | |
198 | ||
fa70fe44 SA |
199 | #define CXACRU_ATTR_INIT(_value, _type, _name) \ |
200 | static ssize_t cxacru_sysfs_show_##_name(struct device *dev, \ | |
201 | struct device_attribute *attr, char *buf) \ | |
202 | { \ | |
203 | struct usb_interface *intf = to_usb_interface(dev); \ | |
204 | struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); \ | |
205 | struct cxacru_data *instance = usbatm_instance->driver_data; \ | |
206 | return cxacru_sysfs_showattr_##_type(instance->card_info[_value], buf); \ | |
207 | } \ | |
208 | CXACRU__ATTR_INIT(_name) | |
209 | ||
210 | #define CXACRU_ATTR_CREATE(_v, _t, _name) CXACRU_DEVICE_CREATE_FILE(_name) | |
6a02c996 | 211 | #define CXACRU_CMD_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name) |
fa70fe44 SA |
212 | #define CXACRU__ATTR_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name) |
213 | ||
214 | #define CXACRU_ATTR_REMOVE(_v, _t, _name) CXACRU_DEVICE_REMOVE_FILE(_name) | |
6a02c996 | 215 | #define CXACRU_CMD_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name) |
fa70fe44 SA |
216 | #define CXACRU__ATTR_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name) |
217 | ||
218 | static ssize_t cxacru_sysfs_showattr_u32(u32 value, char *buf) | |
219 | { | |
220 | return snprintf(buf, PAGE_SIZE, "%u\n", value); | |
221 | } | |
222 | ||
223 | static ssize_t cxacru_sysfs_showattr_s8(s8 value, char *buf) | |
224 | { | |
225 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
226 | } | |
227 | ||
228 | static ssize_t cxacru_sysfs_showattr_dB(s16 value, char *buf) | |
229 | { | |
10107bd0 SA |
230 | if (likely(value >= 0)) { |
231 | return snprintf(buf, PAGE_SIZE, "%u.%02u\n", | |
232 | value / 100, value % 100); | |
233 | } else { | |
234 | value = -value; | |
235 | return snprintf(buf, PAGE_SIZE, "-%u.%02u\n", | |
236 | value / 100, value % 100); | |
237 | } | |
fa70fe44 SA |
238 | } |
239 | ||
240 | static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf) | |
241 | { | |
87e71b47 SA |
242 | static char *str[] = { "no", "yes" }; |
243 | if (unlikely(value >= ARRAY_SIZE(str))) | |
244 | return snprintf(buf, PAGE_SIZE, "%u\n", value); | |
245 | return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); | |
fa70fe44 SA |
246 | } |
247 | ||
248 | static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf) | |
249 | { | |
87e71b47 SA |
250 | static char *str[] = { NULL, "not connected", "connected", "lost" }; |
251 | if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL)) | |
252 | return snprintf(buf, PAGE_SIZE, "%u\n", value); | |
253 | return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); | |
fa70fe44 SA |
254 | } |
255 | ||
256 | static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf) | |
257 | { | |
87e71b47 SA |
258 | static char *str[] = { "down", "attempting to activate", |
259 | "training", "channel analysis", "exchange", "up", | |
260 | "waiting", "initialising" | |
261 | }; | |
262 | if (unlikely(value >= ARRAY_SIZE(str))) | |
263 | return snprintf(buf, PAGE_SIZE, "%u\n", value); | |
264 | return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); | |
fa70fe44 SA |
265 | } |
266 | ||
267 | static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf) | |
268 | { | |
87e71b47 | 269 | static char *str[] = { |
1bfbd283 | 270 | "", |
87e71b47 SA |
271 | "ANSI T1.413", |
272 | "ITU-T G.992.1 (G.DMT)", | |
273 | "ITU-T G.992.2 (G.LITE)" | |
274 | }; | |
1bfbd283 | 275 | if (unlikely(value >= ARRAY_SIZE(str))) |
87e71b47 SA |
276 | return snprintf(buf, PAGE_SIZE, "%u\n", value); |
277 | return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); | |
fa70fe44 SA |
278 | } |
279 | ||
280 | /* | |
281 | * This could use MAC_ADDRESS_HIGH and MAC_ADDRESS_LOW, but since | |
282 | * this data is already in atm_dev there's no point. | |
283 | * | |
284 | * MAC_ADDRESS_HIGH = 0x????5544 | |
285 | * MAC_ADDRESS_LOW = 0x33221100 | |
286 | * Where 00-55 are bytes 0-5 of the MAC. | |
287 | */ | |
288 | static ssize_t cxacru_sysfs_show_mac_address(struct device *dev, | |
289 | struct device_attribute *attr, char *buf) | |
290 | { | |
291 | struct usb_interface *intf = to_usb_interface(dev); | |
292 | struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); | |
293 | struct atm_dev *atm_dev = usbatm_instance->atm_dev; | |
294 | ||
7c510e4b | 295 | return snprintf(buf, PAGE_SIZE, "%pM\n", atm_dev->esi); |
fa70fe44 SA |
296 | } |
297 | ||
6a02c996 SA |
298 | static ssize_t cxacru_sysfs_show_adsl_state(struct device *dev, |
299 | struct device_attribute *attr, char *buf) | |
300 | { | |
301 | struct usb_interface *intf = to_usb_interface(dev); | |
302 | struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); | |
303 | struct cxacru_data *instance = usbatm_instance->driver_data; | |
304 | u32 value = instance->card_info[CXINF_LINE_STARTABLE]; | |
305 | ||
87e71b47 SA |
306 | static char *str[] = { "running", "stopped" }; |
307 | if (unlikely(value >= ARRAY_SIZE(str))) | |
308 | return snprintf(buf, PAGE_SIZE, "%u\n", value); | |
309 | return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); | |
6a02c996 SA |
310 | } |
311 | ||
312 | static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev, | |
313 | struct device_attribute *attr, const char *buf, size_t count) | |
314 | { | |
315 | struct usb_interface *intf = to_usb_interface(dev); | |
316 | struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); | |
317 | struct cxacru_data *instance = usbatm_instance->driver_data; | |
318 | int ret; | |
319 | int poll = -1; | |
320 | char str_cmd[8]; | |
321 | int len = strlen(buf); | |
322 | ||
323 | if (!capable(CAP_NET_ADMIN)) | |
324 | return -EACCES; | |
325 | ||
326 | ret = sscanf(buf, "%7s", str_cmd); | |
327 | if (ret != 1) | |
328 | return -EINVAL; | |
329 | ret = 0; | |
330 | ||
331 | if (mutex_lock_interruptible(&instance->adsl_state_serialize)) | |
332 | return -ERESTARTSYS; | |
333 | ||
334 | if (!strcmp(str_cmd, "stop") || !strcmp(str_cmd, "restart")) { | |
335 | ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_STOP, NULL, 0, NULL, 0); | |
336 | if (ret < 0) { | |
337 | atm_err(usbatm_instance, "change adsl state:" | |
338 | " CHIP_ADSL_LINE_STOP returned %d\n", ret); | |
339 | ||
340 | ret = -EIO; | |
341 | } else { | |
342 | ret = len; | |
343 | poll = CXPOLL_STOPPED; | |
344 | } | |
345 | } | |
346 | ||
347 | /* Line status is only updated every second | |
348 | * and the device appears to only react to | |
349 | * START/STOP every second too. Wait 1.5s to | |
350 | * be sure that restart will have an effect. */ | |
351 | if (!strcmp(str_cmd, "restart")) | |
352 | msleep(1500); | |
353 | ||
354 | if (!strcmp(str_cmd, "start") || !strcmp(str_cmd, "restart")) { | |
355 | ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0); | |
356 | if (ret < 0) { | |
357 | atm_err(usbatm_instance, "change adsl state:" | |
358 | " CHIP_ADSL_LINE_START returned %d\n", ret); | |
359 | ||
360 | ret = -EIO; | |
361 | } else { | |
362 | ret = len; | |
363 | poll = CXPOLL_POLLING; | |
364 | } | |
365 | } | |
366 | ||
367 | if (!strcmp(str_cmd, "poll")) { | |
368 | ret = len; | |
369 | poll = CXPOLL_POLLING; | |
370 | } | |
371 | ||
372 | if (ret == 0) { | |
373 | ret = -EINVAL; | |
374 | poll = -1; | |
375 | } | |
376 | ||
377 | if (poll == CXPOLL_POLLING) { | |
378 | mutex_lock(&instance->poll_state_serialize); | |
379 | switch (instance->poll_state) { | |
380 | case CXPOLL_STOPPED: | |
381 | /* start polling */ | |
382 | instance->poll_state = CXPOLL_POLLING; | |
383 | break; | |
384 | ||
385 | case CXPOLL_STOPPING: | |
386 | /* abort stop request */ | |
387 | instance->poll_state = CXPOLL_POLLING; | |
388 | case CXPOLL_POLLING: | |
389 | case CXPOLL_SHUTDOWN: | |
390 | /* don't start polling */ | |
391 | poll = -1; | |
392 | } | |
393 | mutex_unlock(&instance->poll_state_serialize); | |
394 | } else if (poll == CXPOLL_STOPPED) { | |
395 | mutex_lock(&instance->poll_state_serialize); | |
396 | /* request stop */ | |
397 | if (instance->poll_state == CXPOLL_POLLING) | |
398 | instance->poll_state = CXPOLL_STOPPING; | |
399 | mutex_unlock(&instance->poll_state_serialize); | |
400 | } | |
401 | ||
402 | mutex_unlock(&instance->adsl_state_serialize); | |
403 | ||
404 | if (poll == CXPOLL_POLLING) | |
405 | cxacru_poll_status(&instance->poll_work.work); | |
406 | ||
407 | return ret; | |
408 | } | |
409 | ||
fa70fe44 SA |
410 | /* |
411 | * All device attributes are included in CXACRU_ALL_FILES | |
412 | * so that the same list can be used multiple times: | |
413 | * INIT (define the device attributes) | |
414 | * CREATE (create all the device files) | |
415 | * REMOVE (remove all the device files) | |
416 | * | |
417 | * With the last two being defined as needed in the functions | |
418 | * they are used in before calling CXACRU_ALL_FILES() | |
419 | */ | |
420 | #define CXACRU_ALL_FILES(_action) \ | |
421 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_RATE, u32, downstream_rate); \ | |
422 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_RATE, u32, upstream_rate); \ | |
423 | CXACRU_ATTR_##_action(CXINF_LINK_STATUS, LINK, link_status); \ | |
424 | CXACRU_ATTR_##_action(CXINF_LINE_STATUS, LINE, line_status); \ | |
425 | CXACRU__ATTR_##_action( mac_address); \ | |
426 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_SNR_MARGIN, dB, upstream_snr_margin); \ | |
427 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_SNR_MARGIN, dB, downstream_snr_margin); \ | |
428 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_ATTENUATION, dB, upstream_attenuation); \ | |
429 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_ATTENUATION, dB, downstream_attenuation); \ | |
430 | CXACRU_ATTR_##_action(CXINF_TRANSMITTER_POWER, s8, transmitter_power); \ | |
431 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_BITS_PER_FRAME, u32, upstream_bits_per_frame); \ | |
432 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_BITS_PER_FRAME, u32, downstream_bits_per_frame); \ | |
433 | CXACRU_ATTR_##_action(CXINF_STARTUP_ATTEMPTS, u32, startup_attempts); \ | |
434 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_CRC_ERRORS, u32, upstream_crc_errors); \ | |
435 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_CRC_ERRORS, u32, downstream_crc_errors); \ | |
436 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_FEC_ERRORS, u32, upstream_fec_errors); \ | |
437 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_FEC_ERRORS, u32, downstream_fec_errors); \ | |
438 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_HEC_ERRORS, u32, upstream_hec_errors); \ | |
439 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_HEC_ERRORS, u32, downstream_hec_errors); \ | |
440 | CXACRU_ATTR_##_action(CXINF_LINE_STARTABLE, bool, line_startable); \ | |
441 | CXACRU_ATTR_##_action(CXINF_MODULATION, MODU, modulation); \ | |
442 | CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND, u32, adsl_headend); \ | |
443 | CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND_ENVIRONMENT, u32, adsl_headend_environment); \ | |
6a02c996 SA |
444 | CXACRU_ATTR_##_action(CXINF_CONTROLLER_VERSION, u32, adsl_controller_version); \ |
445 | CXACRU_CMD_##_action( adsl_state); | |
fa70fe44 SA |
446 | |
447 | CXACRU_ALL_FILES(INIT); | |
448 | ||
1b0e6146 | 449 | /* the following three functions are stolen from drivers/usb/core/message.c */ |
7d12e780 | 450 | static void cxacru_blocking_completion(struct urb *urb) |
1b0e6146 | 451 | { |
cdc97792 | 452 | complete(urb->context); |
1b0e6146 DS |
453 | } |
454 | ||
455 | static void cxacru_timeout_kill(unsigned long data) | |
456 | { | |
457 | usb_unlink_urb((struct urb *) data); | |
458 | } | |
459 | ||
460 | static int cxacru_start_wait_urb(struct urb *urb, struct completion *done, | |
461 | int* actual_length) | |
462 | { | |
463 | struct timer_list timer; | |
1b0e6146 DS |
464 | |
465 | init_timer(&timer); | |
466 | timer.expires = jiffies + msecs_to_jiffies(CMD_TIMEOUT); | |
467 | timer.data = (unsigned long) urb; | |
468 | timer.function = cxacru_timeout_kill; | |
469 | add_timer(&timer); | |
470 | wait_for_completion(done); | |
1b0e6146 DS |
471 | del_timer_sync(&timer); |
472 | ||
473 | if (actual_length) | |
474 | *actual_length = urb->actual_length; | |
3b79cc26 | 475 | return urb->status; /* must read status after completion */ |
1b0e6146 DS |
476 | } |
477 | ||
478 | static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, | |
479 | u8 *wdata, int wsize, u8 *rdata, int rsize) | |
480 | { | |
481 | int ret, actlen; | |
482 | int offb, offd; | |
483 | const int stride = CMD_PACKET_SIZE - 4; | |
484 | u8 *wbuf = instance->snd_buf; | |
485 | u8 *rbuf = instance->rcv_buf; | |
486 | int wbuflen = ((wsize - 1) / stride + 1) * CMD_PACKET_SIZE; | |
487 | int rbuflen = ((rsize - 1) / stride + 1) * CMD_PACKET_SIZE; | |
488 | ||
489 | if (wbuflen > PAGE_SIZE || rbuflen > PAGE_SIZE) { | |
4ac0718e SA |
490 | if (printk_ratelimit()) |
491 | usb_err(instance->usbatm, "requested transfer size too large (%d, %d)\n", | |
492 | wbuflen, rbuflen); | |
1b0e6146 | 493 | ret = -ENOMEM; |
eeafa64b | 494 | goto err; |
1b0e6146 DS |
495 | } |
496 | ||
ab3c81ff | 497 | mutex_lock(&instance->cm_serialize); |
1b0e6146 DS |
498 | |
499 | /* submit reading urb before the writing one */ | |
500 | init_completion(&instance->rcv_done); | |
501 | ret = usb_submit_urb(instance->rcv_urb, GFP_KERNEL); | |
502 | if (ret < 0) { | |
4ac0718e SA |
503 | if (printk_ratelimit()) |
504 | usb_err(instance->usbatm, "submit of read urb for cm %#x failed (%d)\n", | |
505 | cm, ret); | |
1b0e6146 DS |
506 | goto fail; |
507 | } | |
508 | ||
509 | memset(wbuf, 0, wbuflen); | |
510 | /* handle wsize == 0 */ | |
511 | wbuf[0] = cm; | |
512 | for (offb = offd = 0; offd < wsize; offd += stride, offb += CMD_PACKET_SIZE) { | |
513 | wbuf[offb] = cm; | |
514 | memcpy(wbuf + offb + 4, wdata + offd, min_t(int, stride, wsize - offd)); | |
515 | } | |
516 | ||
517 | instance->snd_urb->transfer_buffer_length = wbuflen; | |
518 | init_completion(&instance->snd_done); | |
519 | ret = usb_submit_urb(instance->snd_urb, GFP_KERNEL); | |
520 | if (ret < 0) { | |
4ac0718e SA |
521 | if (printk_ratelimit()) |
522 | usb_err(instance->usbatm, "submit of write urb for cm %#x failed (%d)\n", | |
523 | cm, ret); | |
1b0e6146 DS |
524 | goto fail; |
525 | } | |
526 | ||
527 | ret = cxacru_start_wait_urb(instance->snd_urb, &instance->snd_done, NULL); | |
528 | if (ret < 0) { | |
4ac0718e SA |
529 | if (printk_ratelimit()) |
530 | usb_err(instance->usbatm, "send of cm %#x failed (%d)\n", cm, ret); | |
1b0e6146 DS |
531 | goto fail; |
532 | } | |
533 | ||
534 | ret = cxacru_start_wait_urb(instance->rcv_urb, &instance->rcv_done, &actlen); | |
535 | if (ret < 0) { | |
4ac0718e SA |
536 | if (printk_ratelimit()) |
537 | usb_err(instance->usbatm, "receive of cm %#x failed (%d)\n", cm, ret); | |
1b0e6146 DS |
538 | goto fail; |
539 | } | |
540 | if (actlen % CMD_PACKET_SIZE || !actlen) { | |
4ac0718e SA |
541 | if (printk_ratelimit()) |
542 | usb_err(instance->usbatm, "invalid response length to cm %#x: %d\n", | |
543 | cm, actlen); | |
1b0e6146 DS |
544 | ret = -EIO; |
545 | goto fail; | |
546 | } | |
547 | ||
548 | /* check the return status and copy the data to the output buffer, if needed */ | |
549 | for (offb = offd = 0; offd < rsize && offb < actlen; offb += CMD_PACKET_SIZE) { | |
550 | if (rbuf[offb] != cm) { | |
4ac0718e SA |
551 | if (printk_ratelimit()) |
552 | usb_err(instance->usbatm, "wrong cm %#x in response to cm %#x\n", | |
553 | rbuf[offb], cm); | |
1b0e6146 DS |
554 | ret = -EIO; |
555 | goto fail; | |
556 | } | |
557 | if (rbuf[offb + 1] != CM_STATUS_SUCCESS) { | |
4ac0718e SA |
558 | if (printk_ratelimit()) |
559 | usb_err(instance->usbatm, "response to cm %#x failed: %#x\n", | |
560 | cm, rbuf[offb + 1]); | |
1b0e6146 DS |
561 | ret = -EIO; |
562 | goto fail; | |
563 | } | |
564 | if (offd >= rsize) | |
565 | break; | |
566 | memcpy(rdata + offd, rbuf + offb + 4, min_t(int, stride, rsize - offd)); | |
567 | offd += stride; | |
568 | } | |
569 | ||
570 | ret = offd; | |
571 | dbg("cm %#x", cm); | |
572 | fail: | |
ab3c81ff | 573 | mutex_unlock(&instance->cm_serialize); |
eeafa64b | 574 | err: |
1b0e6146 DS |
575 | return ret; |
576 | } | |
577 | ||
578 | static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_request cm, | |
579 | u32 *data, int size) | |
580 | { | |
581 | int ret, len; | |
fd05e720 | 582 | __le32 *buf; |
1b0e6146 DS |
583 | int offb, offd; |
584 | const int stride = CMD_PACKET_SIZE / (4 * 2) - 1; | |
585 | int buflen = ((size - 1) / stride + 1 + size * 2) * 4; | |
586 | ||
587 | buf = kmalloc(buflen, GFP_KERNEL); | |
588 | if (!buf) | |
589 | return -ENOMEM; | |
590 | ||
591 | ret = cxacru_cm(instance, cm, NULL, 0, (u8 *) buf, buflen); | |
592 | if (ret < 0) | |
593 | goto cleanup; | |
594 | ||
595 | /* len > 0 && len % 4 == 0 guaranteed by cxacru_cm() */ | |
596 | len = ret / 4; | |
597 | for (offb = 0; offb < len; ) { | |
598 | int l = le32_to_cpu(buf[offb++]); | |
5d0a9c79 | 599 | if (l < 0 || l > stride || l > (len - offb) / 2) { |
4ac0718e SA |
600 | if (printk_ratelimit()) |
601 | usb_err(instance->usbatm, "invalid data length from cm %#x: %d\n", | |
602 | cm, l); | |
1b0e6146 DS |
603 | ret = -EIO; |
604 | goto cleanup; | |
605 | } | |
606 | while (l--) { | |
607 | offd = le32_to_cpu(buf[offb++]); | |
608 | if (offd >= size) { | |
4ac0718e | 609 | if (printk_ratelimit()) |
230ffc75 | 610 | usb_err(instance->usbatm, "wrong index %#x in response to cm %#x\n", |
4ac0718e | 611 | offd, cm); |
1b0e6146 DS |
612 | ret = -EIO; |
613 | goto cleanup; | |
614 | } | |
615 | data[offd] = le32_to_cpu(buf[offb++]); | |
616 | } | |
617 | } | |
618 | ||
619 | ret = 0; | |
620 | ||
621 | cleanup: | |
622 | kfree(buf); | |
623 | return ret; | |
624 | } | |
625 | ||
626 | static int cxacru_card_status(struct cxacru_data *instance) | |
627 | { | |
628 | int ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0); | |
629 | if (ret < 0) { /* firmware not loaded */ | |
630 | dbg("cxacru_adsl_start: CARD_GET_STATUS returned %d", ret); | |
631 | return ret; | |
632 | } | |
633 | return 0; | |
634 | } | |
635 | ||
da1f82b5 SA |
636 | static void cxacru_remove_device_files(struct usbatm_data *usbatm_instance, |
637 | struct atm_dev *atm_dev) | |
638 | { | |
639 | struct usb_interface *intf = usbatm_instance->usb_intf; | |
640 | ||
641 | #define CXACRU_DEVICE_REMOVE_FILE(_name) \ | |
642 | device_remove_file(&intf->dev, &dev_attr_##_name); | |
643 | CXACRU_ALL_FILES(REMOVE); | |
644 | #undef CXACRU_DEVICE_REMOVE_FILE | |
645 | } | |
646 | ||
1b0e6146 DS |
647 | static int cxacru_atm_start(struct usbatm_data *usbatm_instance, |
648 | struct atm_dev *atm_dev) | |
649 | { | |
650 | struct cxacru_data *instance = usbatm_instance->driver_data; | |
da1f82b5 | 651 | struct usb_interface *intf = usbatm_instance->usb_intf; |
1b0e6146 DS |
652 | /* |
653 | struct atm_dev *atm_dev = usbatm_instance->atm_dev; | |
654 | */ | |
655 | int ret; | |
6a02c996 | 656 | int start_polling = 1; |
1b0e6146 DS |
657 | |
658 | dbg("cxacru_atm_start"); | |
659 | ||
660 | /* Read MAC address */ | |
661 | ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_MAC_ADDRESS, NULL, 0, | |
662 | atm_dev->esi, sizeof(atm_dev->esi)); | |
663 | if (ret < 0) { | |
0ec3c7e8 | 664 | atm_err(usbatm_instance, "cxacru_atm_start: CARD_GET_MAC_ADDRESS returned %d\n", ret); |
1b0e6146 DS |
665 | return ret; |
666 | } | |
667 | ||
da1f82b5 SA |
668 | #define CXACRU_DEVICE_CREATE_FILE(_name) \ |
669 | ret = device_create_file(&intf->dev, &dev_attr_##_name); \ | |
670 | if (unlikely(ret)) \ | |
671 | goto fail_sysfs; | |
672 | CXACRU_ALL_FILES(CREATE); | |
673 | #undef CXACRU_DEVICE_CREATE_FILE | |
674 | ||
1b0e6146 | 675 | /* start ADSL */ |
6a02c996 | 676 | mutex_lock(&instance->adsl_state_serialize); |
1b0e6146 | 677 | ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0); |
fd209e35 | 678 | if (ret < 0) |
0ec3c7e8 | 679 | atm_err(usbatm_instance, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret); |
1b0e6146 DS |
680 | |
681 | /* Start status polling */ | |
6a02c996 SA |
682 | mutex_lock(&instance->poll_state_serialize); |
683 | switch (instance->poll_state) { | |
684 | case CXPOLL_STOPPED: | |
685 | /* start polling */ | |
686 | instance->poll_state = CXPOLL_POLLING; | |
687 | break; | |
688 | ||
689 | case CXPOLL_STOPPING: | |
690 | /* abort stop request */ | |
691 | instance->poll_state = CXPOLL_POLLING; | |
692 | case CXPOLL_POLLING: | |
693 | case CXPOLL_SHUTDOWN: | |
694 | /* don't start polling */ | |
695 | start_polling = 0; | |
696 | } | |
697 | mutex_unlock(&instance->poll_state_serialize); | |
698 | mutex_unlock(&instance->adsl_state_serialize); | |
699 | ||
700 | if (start_polling) | |
701 | cxacru_poll_status(&instance->poll_work.work); | |
1b0e6146 | 702 | return 0; |
da1f82b5 SA |
703 | |
704 | fail_sysfs: | |
705 | usb_err(usbatm_instance, "cxacru_atm_start: device_create_file failed (%d)\n", ret); | |
706 | cxacru_remove_device_files(usbatm_instance, atm_dev); | |
707 | return ret; | |
1b0e6146 DS |
708 | } |
709 | ||
c4028958 | 710 | static void cxacru_poll_status(struct work_struct *work) |
1b0e6146 | 711 | { |
c4028958 DH |
712 | struct cxacru_data *instance = |
713 | container_of(work, struct cxacru_data, poll_work.work); | |
1b0e6146 | 714 | u32 buf[CXINF_MAX] = {}; |
0ec3c7e8 DS |
715 | struct usbatm_data *usbatm = instance->usbatm; |
716 | struct atm_dev *atm_dev = usbatm->atm_dev; | |
6a02c996 | 717 | int keep_polling = 1; |
1b0e6146 DS |
718 | int ret; |
719 | ||
720 | ret = cxacru_cm_get_array(instance, CM_REQUEST_CARD_INFO_GET, buf, CXINF_MAX); | |
721 | if (ret < 0) { | |
6a02c996 SA |
722 | if (ret != -ESHUTDOWN) |
723 | atm_warn(usbatm, "poll status: error %d\n", ret); | |
724 | ||
725 | mutex_lock(&instance->poll_state_serialize); | |
726 | if (instance->poll_state != CXPOLL_SHUTDOWN) { | |
727 | instance->poll_state = CXPOLL_STOPPED; | |
728 | ||
729 | if (ret != -ESHUTDOWN) | |
730 | atm_warn(usbatm, "polling disabled, set adsl_state" | |
731 | " to 'start' or 'poll' to resume\n"); | |
732 | } | |
733 | mutex_unlock(&instance->poll_state_serialize); | |
1b0e6146 DS |
734 | goto reschedule; |
735 | } | |
736 | ||
fa70fe44 SA |
737 | memcpy(instance->card_info, buf, sizeof(instance->card_info)); |
738 | ||
6a02c996 SA |
739 | if (instance->adsl_status != buf[CXINF_LINE_STARTABLE]) { |
740 | instance->adsl_status = buf[CXINF_LINE_STARTABLE]; | |
741 | ||
742 | switch (instance->adsl_status) { | |
743 | case 0: | |
744 | atm_printk(KERN_INFO, usbatm, "ADSL state: running\n"); | |
745 | break; | |
746 | ||
747 | case 1: | |
748 | atm_printk(KERN_INFO, usbatm, "ADSL state: stopped\n"); | |
749 | break; | |
750 | ||
751 | default: | |
752 | atm_printk(KERN_INFO, usbatm, "Unknown adsl status %02x\n", instance->adsl_status); | |
753 | break; | |
754 | } | |
755 | } | |
756 | ||
1b0e6146 DS |
757 | if (instance->line_status == buf[CXINF_LINE_STATUS]) |
758 | goto reschedule; | |
759 | ||
760 | instance->line_status = buf[CXINF_LINE_STATUS]; | |
761 | switch (instance->line_status) { | |
762 | case 0: | |
763 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 764 | atm_info(usbatm, "ADSL line: down\n"); |
1b0e6146 DS |
765 | break; |
766 | ||
767 | case 1: | |
768 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 769 | atm_info(usbatm, "ADSL line: attempting to activate\n"); |
1b0e6146 DS |
770 | break; |
771 | ||
772 | case 2: | |
773 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 774 | atm_info(usbatm, "ADSL line: training\n"); |
1b0e6146 DS |
775 | break; |
776 | ||
777 | case 3: | |
778 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 779 | atm_info(usbatm, "ADSL line: channel analysis\n"); |
1b0e6146 DS |
780 | break; |
781 | ||
782 | case 4: | |
783 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 784 | atm_info(usbatm, "ADSL line: exchange\n"); |
1b0e6146 DS |
785 | break; |
786 | ||
787 | case 5: | |
788 | atm_dev->link_rate = buf[CXINF_DOWNSTREAM_RATE] * 1000 / 424; | |
789 | atm_dev->signal = ATM_PHY_SIG_FOUND; | |
790 | ||
0ec3c7e8 | 791 | atm_info(usbatm, "ADSL line: up (%d kb/s down | %d kb/s up)\n", |
1b0e6146 DS |
792 | buf[CXINF_DOWNSTREAM_RATE], buf[CXINF_UPSTREAM_RATE]); |
793 | break; | |
794 | ||
795 | case 6: | |
796 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 797 | atm_info(usbatm, "ADSL line: waiting\n"); |
1b0e6146 DS |
798 | break; |
799 | ||
800 | case 7: | |
801 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 802 | atm_info(usbatm, "ADSL line: initializing\n"); |
1b0e6146 DS |
803 | break; |
804 | ||
805 | default: | |
806 | atm_dev->signal = ATM_PHY_SIG_UNKNOWN; | |
0ec3c7e8 | 807 | atm_info(usbatm, "Unknown line state %02x\n", instance->line_status); |
1b0e6146 DS |
808 | break; |
809 | } | |
810 | reschedule: | |
6a02c996 SA |
811 | |
812 | mutex_lock(&instance->poll_state_serialize); | |
813 | if (instance->poll_state == CXPOLL_STOPPING && | |
814 | instance->adsl_status == 1 && /* stopped */ | |
815 | instance->line_status == 0) /* down */ | |
816 | instance->poll_state = CXPOLL_STOPPED; | |
817 | ||
818 | if (instance->poll_state == CXPOLL_STOPPED) | |
819 | keep_polling = 0; | |
820 | mutex_unlock(&instance->poll_state_serialize); | |
821 | ||
822 | if (keep_polling) | |
823 | schedule_delayed_work(&instance->poll_work, | |
824 | round_jiffies_relative(POLL_INTERVAL*HZ)); | |
1b0e6146 DS |
825 | } |
826 | ||
827 | static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw, | |
3b216d18 | 828 | u8 code1, u8 code2, u32 addr, const u8 *data, int size) |
1b0e6146 DS |
829 | { |
830 | int ret; | |
831 | u8 *buf; | |
832 | int offd, offb; | |
833 | const int stride = CMD_PACKET_SIZE - 8; | |
834 | ||
835 | buf = (u8 *) __get_free_page(GFP_KERNEL); | |
836 | if (!buf) | |
837 | return -ENOMEM; | |
838 | ||
839 | offb = offd = 0; | |
840 | do { | |
841 | int l = min_t(int, stride, size - offd); | |
842 | buf[offb++] = fw; | |
843 | buf[offb++] = l; | |
844 | buf[offb++] = code1; | |
845 | buf[offb++] = code2; | |
fd05e720 | 846 | put_unaligned(cpu_to_le32(addr), (__le32 *)(buf + offb)); |
1b0e6146 DS |
847 | offb += 4; |
848 | addr += l; | |
849 | if(l) | |
850 | memcpy(buf + offb, data + offd, l); | |
851 | if (l < stride) | |
852 | memset(buf + offb + l, 0, stride - l); | |
853 | offb += stride; | |
854 | offd += stride; | |
855 | if ((offb >= PAGE_SIZE) || (offd >= size)) { | |
856 | ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD), | |
857 | buf, offb, NULL, CMD_TIMEOUT); | |
858 | if (ret < 0) { | |
859 | dbg("sending fw %#x failed", fw); | |
860 | goto cleanup; | |
861 | } | |
862 | offb = 0; | |
863 | } | |
864 | } while(offd < size); | |
865 | dbg("sent fw %#x", fw); | |
866 | ||
867 | ret = 0; | |
868 | ||
869 | cleanup: | |
870 | free_page((unsigned long) buf); | |
871 | return ret; | |
872 | } | |
873 | ||
874 | static void cxacru_upload_firmware(struct cxacru_data *instance, | |
875 | const struct firmware *fw, | |
876 | const struct firmware *bp, | |
877 | const struct firmware *cf) | |
878 | { | |
879 | int ret; | |
880 | int off; | |
0ec3c7e8 DS |
881 | struct usbatm_data *usbatm = instance->usbatm; |
882 | struct usb_device *usb_dev = usbatm->usb_dev; | |
fd05e720 AV |
883 | __le16 signature[] = { usb_dev->descriptor.idVendor, |
884 | usb_dev->descriptor.idProduct }; | |
885 | __le32 val; | |
1b0e6146 DS |
886 | |
887 | dbg("cxacru_upload_firmware"); | |
888 | ||
889 | /* FirmwarePllFClkValue */ | |
890 | val = cpu_to_le32(instance->modem_type->pll_f_clk); | |
891 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLFCLK_ADDR, (u8 *) &val, 4); | |
892 | if (ret) { | |
0ec3c7e8 | 893 | usb_err(usbatm, "FirmwarePllFClkValue failed: %d\n", ret); |
1b0e6146 DS |
894 | return; |
895 | } | |
896 | ||
897 | /* FirmwarePllBClkValue */ | |
898 | val = cpu_to_le32(instance->modem_type->pll_b_clk); | |
899 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLBCLK_ADDR, (u8 *) &val, 4); | |
900 | if (ret) { | |
0ec3c7e8 | 901 | usb_err(usbatm, "FirmwarePllBClkValue failed: %d\n", ret); |
1b0e6146 DS |
902 | return; |
903 | } | |
904 | ||
905 | /* Enable SDRAM */ | |
906 | val = cpu_to_le32(SDRAM_ENA); | |
907 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SDRAMEN_ADDR, (u8 *) &val, 4); | |
908 | if (ret) { | |
0ec3c7e8 | 909 | usb_err(usbatm, "Enable SDRAM failed: %d\n", ret); |
1b0e6146 DS |
910 | return; |
911 | } | |
912 | ||
913 | /* Firmware */ | |
914 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, FW_ADDR, fw->data, fw->size); | |
915 | if (ret) { | |
0ec3c7e8 | 916 | usb_err(usbatm, "Firmware upload failed: %d\n", ret); |
1b0e6146 DS |
917 | return; |
918 | } | |
919 | ||
920 | /* Boot ROM patch */ | |
921 | if (instance->modem_type->boot_rom_patch) { | |
922 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_ADDR, bp->data, bp->size); | |
923 | if (ret) { | |
0ec3c7e8 | 924 | usb_err(usbatm, "Boot ROM patching failed: %d\n", ret); |
1b0e6146 DS |
925 | return; |
926 | } | |
927 | } | |
928 | ||
929 | /* Signature */ | |
930 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SIG_ADDR, (u8 *) signature, 4); | |
931 | if (ret) { | |
0ec3c7e8 | 932 | usb_err(usbatm, "Signature storing failed: %d\n", ret); |
1b0e6146 DS |
933 | return; |
934 | } | |
935 | ||
936 | if (instance->modem_type->boot_rom_patch) { | |
937 | val = cpu_to_le32(BR_ADDR); | |
938 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_STACK_ADDR, (u8 *) &val, 4); | |
939 | } | |
940 | else { | |
941 | ret = cxacru_fw(usb_dev, FW_GOTO_MEM, 0x0, 0x0, FW_ADDR, NULL, 0); | |
942 | } | |
943 | if (ret) { | |
0ec3c7e8 | 944 | usb_err(usbatm, "Passing control to firmware failed: %d\n", ret); |
1b0e6146 DS |
945 | return; |
946 | } | |
947 | ||
948 | /* Delay to allow firmware to start up. */ | |
949 | msleep_interruptible(1000); | |
950 | ||
951 | usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD)); | |
952 | usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_CMD)); | |
953 | usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_DATA)); | |
954 | usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_DATA)); | |
955 | ||
956 | ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0); | |
957 | if (ret < 0) { | |
0ec3c7e8 | 958 | usb_err(usbatm, "modem failed to initialize: %d\n", ret); |
1b0e6146 DS |
959 | return; |
960 | } | |
961 | ||
962 | /* Load config data (le32), doing one packet at a time */ | |
963 | if (cf) | |
964 | for (off = 0; off < cf->size / 4; ) { | |
fd05e720 | 965 | __le32 buf[CMD_PACKET_SIZE / 4 - 1]; |
1b0e6146 DS |
966 | int i, len = min_t(int, cf->size / 4 - off, CMD_PACKET_SIZE / 4 / 2 - 1); |
967 | buf[0] = cpu_to_le32(len); | |
968 | for (i = 0; i < len; i++, off++) { | |
969 | buf[i * 2 + 1] = cpu_to_le32(off); | |
970 | memcpy(buf + i * 2 + 2, cf->data + off * 4, 4); | |
971 | } | |
972 | ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET, | |
973 | (u8 *) buf, len, NULL, 0); | |
974 | if (ret < 0) { | |
0ec3c7e8 | 975 | usb_err(usbatm, "load config data failed: %d\n", ret); |
1b0e6146 DS |
976 | return; |
977 | } | |
978 | } | |
979 | ||
980 | msleep_interruptible(4000); | |
981 | } | |
982 | ||
983 | static int cxacru_find_firmware(struct cxacru_data *instance, | |
984 | char* phase, const struct firmware **fw_p) | |
985 | { | |
0ec3c7e8 DS |
986 | struct usbatm_data *usbatm = instance->usbatm; |
987 | struct device *dev = &usbatm->usb_intf->dev; | |
1b0e6146 DS |
988 | char buf[16]; |
989 | ||
990 | sprintf(buf, "cxacru-%s.bin", phase); | |
991 | dbg("cxacru_find_firmware: looking for %s", buf); | |
992 | ||
993 | if (request_firmware(fw_p, buf, dev)) { | |
0ec3c7e8 | 994 | usb_dbg(usbatm, "no stage %s firmware found\n", phase); |
1b0e6146 DS |
995 | return -ENOENT; |
996 | } | |
997 | ||
0ec3c7e8 | 998 | usb_info(usbatm, "found firmware %s\n", buf); |
1b0e6146 DS |
999 | |
1000 | return 0; | |
1001 | } | |
1002 | ||
1003 | static int cxacru_heavy_init(struct usbatm_data *usbatm_instance, | |
1004 | struct usb_interface *usb_intf) | |
1005 | { | |
1b0e6146 DS |
1006 | const struct firmware *fw, *bp, *cf; |
1007 | struct cxacru_data *instance = usbatm_instance->driver_data; | |
1008 | ||
1009 | int ret = cxacru_find_firmware(instance, "fw", &fw); | |
1010 | if (ret) { | |
0ec3c7e8 | 1011 | usb_warn(usbatm_instance, "firmware (cxacru-fw.bin) unavailable (system misconfigured?)\n"); |
1b0e6146 DS |
1012 | return ret; |
1013 | } | |
1014 | ||
1015 | if (instance->modem_type->boot_rom_patch) { | |
1016 | ret = cxacru_find_firmware(instance, "bp", &bp); | |
1017 | if (ret) { | |
0ec3c7e8 | 1018 | usb_warn(usbatm_instance, "boot ROM patch (cxacru-bp.bin) unavailable (system misconfigured?)\n"); |
1b0e6146 DS |
1019 | release_firmware(fw); |
1020 | return ret; | |
1021 | } | |
1022 | } | |
1023 | ||
1024 | if (cxacru_find_firmware(instance, "cf", &cf)) /* optional */ | |
1025 | cf = NULL; | |
1026 | ||
1027 | cxacru_upload_firmware(instance, fw, bp, cf); | |
1028 | ||
1029 | if (cf) | |
1030 | release_firmware(cf); | |
1031 | if (instance->modem_type->boot_rom_patch) | |
1032 | release_firmware(bp); | |
1033 | release_firmware(fw); | |
1034 | ||
1035 | ret = cxacru_card_status(instance); | |
1036 | if (ret) | |
1037 | dbg("modem initialisation failed"); | |
1038 | else | |
1039 | dbg("done setting up the modem"); | |
1040 | ||
1041 | return ret; | |
1042 | } | |
1043 | ||
1044 | static int cxacru_bind(struct usbatm_data *usbatm_instance, | |
35644b0c | 1045 | struct usb_interface *intf, const struct usb_device_id *id) |
1b0e6146 DS |
1046 | { |
1047 | struct cxacru_data *instance; | |
1048 | struct usb_device *usb_dev = interface_to_usbdev(intf); | |
1049 | int ret; | |
1050 | ||
1051 | /* instance init */ | |
9a734efe | 1052 | instance = kzalloc(sizeof(*instance), GFP_KERNEL); |
1b0e6146 DS |
1053 | if (!instance) { |
1054 | dbg("cxacru_bind: no memory for instance data"); | |
1055 | return -ENOMEM; | |
1056 | } | |
1057 | ||
1b0e6146 DS |
1058 | instance->usbatm = usbatm_instance; |
1059 | instance->modem_type = (struct cxacru_modem_type *) id->driver_info; | |
1060 | ||
6a02c996 SA |
1061 | mutex_init(&instance->poll_state_serialize); |
1062 | instance->poll_state = CXPOLL_STOPPED; | |
1063 | instance->line_status = -1; | |
1064 | instance->adsl_status = -1; | |
1065 | ||
1066 | mutex_init(&instance->adsl_state_serialize); | |
1067 | ||
1b0e6146 DS |
1068 | instance->rcv_buf = (u8 *) __get_free_page(GFP_KERNEL); |
1069 | if (!instance->rcv_buf) { | |
1070 | dbg("cxacru_bind: no memory for rcv_buf"); | |
1071 | ret = -ENOMEM; | |
1072 | goto fail; | |
1073 | } | |
1074 | instance->snd_buf = (u8 *) __get_free_page(GFP_KERNEL); | |
1075 | if (!instance->snd_buf) { | |
1076 | dbg("cxacru_bind: no memory for snd_buf"); | |
1077 | ret = -ENOMEM; | |
1078 | goto fail; | |
1079 | } | |
1080 | instance->rcv_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1081 | if (!instance->rcv_urb) { | |
1082 | dbg("cxacru_bind: no memory for rcv_urb"); | |
1083 | ret = -ENOMEM; | |
1084 | goto fail; | |
1085 | } | |
1086 | instance->snd_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1087 | if (!instance->snd_urb) { | |
1088 | dbg("cxacru_bind: no memory for snd_urb"); | |
1089 | ret = -ENOMEM; | |
1090 | goto fail; | |
1091 | } | |
1092 | ||
1093 | usb_fill_int_urb(instance->rcv_urb, | |
1094 | usb_dev, usb_rcvintpipe(usb_dev, CXACRU_EP_CMD), | |
1095 | instance->rcv_buf, PAGE_SIZE, | |
1096 | cxacru_blocking_completion, &instance->rcv_done, 1); | |
1b0e6146 DS |
1097 | |
1098 | usb_fill_int_urb(instance->snd_urb, | |
1099 | usb_dev, usb_sndintpipe(usb_dev, CXACRU_EP_CMD), | |
1100 | instance->snd_buf, PAGE_SIZE, | |
1101 | cxacru_blocking_completion, &instance->snd_done, 4); | |
1b0e6146 | 1102 | |
ab3c81ff | 1103 | mutex_init(&instance->cm_serialize); |
1b0e6146 | 1104 | |
c4028958 | 1105 | INIT_DELAYED_WORK(&instance->poll_work, cxacru_poll_status); |
1b0e6146 DS |
1106 | |
1107 | usbatm_instance->driver_data = instance; | |
1108 | ||
35644b0c | 1109 | usbatm_instance->flags = (cxacru_card_status(instance) ? 0 : UDSL_SKIP_HEAVY_INIT); |
1b0e6146 DS |
1110 | |
1111 | return 0; | |
1112 | ||
1113 | fail: | |
1114 | free_page((unsigned long) instance->snd_buf); | |
1115 | free_page((unsigned long) instance->rcv_buf); | |
1116 | usb_free_urb(instance->snd_urb); | |
1117 | usb_free_urb(instance->rcv_urb); | |
1118 | kfree(instance); | |
1119 | ||
1120 | return ret; | |
1121 | } | |
1122 | ||
1123 | static void cxacru_unbind(struct usbatm_data *usbatm_instance, | |
1124 | struct usb_interface *intf) | |
1125 | { | |
1126 | struct cxacru_data *instance = usbatm_instance->driver_data; | |
6a02c996 | 1127 | int is_polling = 1; |
1b0e6146 DS |
1128 | |
1129 | dbg("cxacru_unbind entered"); | |
1130 | ||
1131 | if (!instance) { | |
1132 | dbg("cxacru_unbind: NULL instance!"); | |
1133 | return; | |
1134 | } | |
1135 | ||
6a02c996 SA |
1136 | mutex_lock(&instance->poll_state_serialize); |
1137 | BUG_ON(instance->poll_state == CXPOLL_SHUTDOWN); | |
1138 | ||
1139 | /* ensure that status polling continues unless | |
1140 | * it has already stopped */ | |
1141 | if (instance->poll_state == CXPOLL_STOPPED) | |
1142 | is_polling = 0; | |
1143 | ||
1144 | /* stop polling from being stopped or started */ | |
1145 | instance->poll_state = CXPOLL_SHUTDOWN; | |
1146 | mutex_unlock(&instance->poll_state_serialize); | |
1147 | ||
1148 | if (is_polling) | |
1149 | cancel_rearming_delayed_work(&instance->poll_work); | |
1b0e6146 DS |
1150 | |
1151 | usb_kill_urb(instance->snd_urb); | |
1152 | usb_kill_urb(instance->rcv_urb); | |
1153 | usb_free_urb(instance->snd_urb); | |
1154 | usb_free_urb(instance->rcv_urb); | |
1155 | ||
1156 | free_page((unsigned long) instance->snd_buf); | |
1157 | free_page((unsigned long) instance->rcv_buf); | |
fa70fe44 | 1158 | |
1b0e6146 DS |
1159 | kfree(instance); |
1160 | ||
1161 | usbatm_instance->driver_data = NULL; | |
1162 | } | |
1163 | ||
1164 | static const struct cxacru_modem_type cxacru_cafe = { | |
1165 | .pll_f_clk = 0x02d874df, | |
1166 | .pll_b_clk = 0x0196a51a, | |
1167 | .boot_rom_patch = 1, | |
1168 | }; | |
1169 | ||
1170 | static const struct cxacru_modem_type cxacru_cb00 = { | |
1171 | .pll_f_clk = 0x5, | |
1172 | .pll_b_clk = 0x3, | |
1173 | .boot_rom_patch = 0, | |
1174 | }; | |
1175 | ||
1176 | static const struct usb_device_id cxacru_usb_ids[] = { | |
1177 | { /* V = Conexant P = ADSL modem (Euphrates project) */ | |
1178 | USB_DEVICE(0x0572, 0xcafe), .driver_info = (unsigned long) &cxacru_cafe | |
1179 | }, | |
1180 | { /* V = Conexant P = ADSL modem (Hasbani project) */ | |
1181 | USB_DEVICE(0x0572, 0xcb00), .driver_info = (unsigned long) &cxacru_cb00 | |
1182 | }, | |
1183 | { /* V = Conexant P = ADSL modem */ | |
1184 | USB_DEVICE(0x0572, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00 | |
1185 | }, | |
0ec3c7e8 DS |
1186 | { /* V = Conexant P = ADSL modem (Well PTI-800) */ |
1187 | USB_DEVICE(0x0572, 0xcb02), .driver_info = (unsigned long) &cxacru_cb00 | |
1188 | }, | |
1b0e6146 DS |
1189 | { /* V = Conexant P = ADSL modem */ |
1190 | USB_DEVICE(0x0572, 0xcb06), .driver_info = (unsigned long) &cxacru_cb00 | |
1191 | }, | |
44960af1 DS |
1192 | { /* V = Conexant P = ADSL modem (ZTE ZXDSL 852) */ |
1193 | USB_DEVICE(0x0572, 0xcb07), .driver_info = (unsigned long) &cxacru_cb00 | |
1194 | }, | |
1b0e6146 DS |
1195 | { /* V = Olitec P = ADSL modem version 2 */ |
1196 | USB_DEVICE(0x08e3, 0x0100), .driver_info = (unsigned long) &cxacru_cafe | |
1197 | }, | |
1198 | { /* V = Olitec P = ADSL modem version 3 */ | |
1199 | USB_DEVICE(0x08e3, 0x0102), .driver_info = (unsigned long) &cxacru_cb00 | |
1200 | }, | |
1201 | { /* V = Trust/Amigo Technology Co. P = AMX-CA86U */ | |
1202 | USB_DEVICE(0x0eb0, 0x3457), .driver_info = (unsigned long) &cxacru_cafe | |
1203 | }, | |
1204 | { /* V = Zoom P = 5510 */ | |
1205 | USB_DEVICE(0x1803, 0x5510), .driver_info = (unsigned long) &cxacru_cb00 | |
1206 | }, | |
1207 | { /* V = Draytek P = Vigor 318 */ | |
1208 | USB_DEVICE(0x0675, 0x0200), .driver_info = (unsigned long) &cxacru_cb00 | |
1209 | }, | |
1210 | { /* V = Zyxel P = 630-C1 aka OMNI ADSL USB (Annex A) */ | |
1211 | USB_DEVICE(0x0586, 0x330a), .driver_info = (unsigned long) &cxacru_cb00 | |
1212 | }, | |
1213 | { /* V = Zyxel P = 630-C3 aka OMNI ADSL USB (Annex B) */ | |
1214 | USB_DEVICE(0x0586, 0x330b), .driver_info = (unsigned long) &cxacru_cb00 | |
1215 | }, | |
1216 | { /* V = Aethra P = Starmodem UM1020 */ | |
1217 | USB_DEVICE(0x0659, 0x0020), .driver_info = (unsigned long) &cxacru_cb00 | |
1218 | }, | |
1219 | { /* V = Aztech Systems P = ? AKA Pirelli AUA-010 */ | |
1220 | USB_DEVICE(0x0509, 0x0812), .driver_info = (unsigned long) &cxacru_cb00 | |
1221 | }, | |
1222 | { /* V = Netopia P = Cayman 3341(Annex A)/3351(Annex B) */ | |
1223 | USB_DEVICE(0x100d, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00 | |
1224 | }, | |
1225 | { /* V = Netopia P = Cayman 3342(Annex A)/3352(Annex B) */ | |
1226 | USB_DEVICE(0x100d, 0x3342), .driver_info = (unsigned long) &cxacru_cb00 | |
1227 | }, | |
1228 | {} | |
1229 | }; | |
1230 | ||
1231 | MODULE_DEVICE_TABLE(usb, cxacru_usb_ids); | |
1232 | ||
1233 | static struct usbatm_driver cxacru_driver = { | |
1b0e6146 DS |
1234 | .driver_name = cxacru_driver_name, |
1235 | .bind = cxacru_bind, | |
1236 | .heavy_init = cxacru_heavy_init, | |
1237 | .unbind = cxacru_unbind, | |
1238 | .atm_start = cxacru_atm_start, | |
da1f82b5 | 1239 | .atm_stop = cxacru_remove_device_files, |
80aae7a1 DS |
1240 | .bulk_in = CXACRU_EP_DATA, |
1241 | .bulk_out = CXACRU_EP_DATA, | |
1b0e6146 DS |
1242 | .rx_padding = 3, |
1243 | .tx_padding = 11, | |
1244 | }; | |
1245 | ||
1246 | static int cxacru_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
1247 | { | |
1248 | return usbatm_usb_probe(intf, id, &cxacru_driver); | |
1249 | } | |
1250 | ||
1251 | static struct usb_driver cxacru_usb_driver = { | |
1b0e6146 DS |
1252 | .name = cxacru_driver_name, |
1253 | .probe = cxacru_usb_probe, | |
1254 | .disconnect = usbatm_usb_disconnect, | |
1255 | .id_table = cxacru_usb_ids | |
1256 | }; | |
1257 | ||
1258 | static int __init cxacru_init(void) | |
1259 | { | |
1260 | return usb_register(&cxacru_usb_driver); | |
1261 | } | |
1262 | ||
1263 | static void __exit cxacru_cleanup(void) | |
1264 | { | |
1265 | usb_deregister(&cxacru_usb_driver); | |
1266 | } | |
1267 | ||
1268 | module_init(cxacru_init); | |
1269 | module_exit(cxacru_cleanup); | |
1270 | ||
1271 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1272 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1273 | MODULE_LICENSE("GPL"); | |
1274 | MODULE_VERSION(DRIVER_VERSION); |