Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 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) |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 7 | * Copyright (C) 2007 Simon Arlott |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 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> |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 38 | #include <linux/device.h> |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 39 | #include <linux/firmware.h> |
Arjan van de Ven | ab3c81f | 2006-01-13 15:52:55 +0100 | [diff] [blame] | 40 | #include <linux/mutex.h> |
Al Viro | fd05e72 | 2008-04-28 07:00:16 +0100 | [diff] [blame] | 41 | #include <asm/unaligned.h> |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 42 | |
| 43 | #include "usbatm.h" |
| 44 | |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 45 | #define DRIVER_AUTHOR "Roman Kagan, David Woodhouse, Duncan Sands, Simon Arlott" |
| 46 | #define DRIVER_VERSION "0.3" |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 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 */ |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 69 | #define POLL_INTERVAL 1 /* secs */ |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 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 | |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 151 | enum cxacru_poll_state { |
| 152 | CXPOLL_STOPPING, |
| 153 | CXPOLL_STOPPED, |
| 154 | CXPOLL_POLLING, |
| 155 | CXPOLL_SHUTDOWN |
| 156 | }; |
| 157 | |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 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; |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 170 | struct mutex adsl_state_serialize; |
| 171 | int adsl_status; |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 172 | struct delayed_work poll_work; |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 173 | u32 card_info[CXINF_MAX]; |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 174 | struct mutex poll_state_serialize; |
Simon Arlott | 87e71b4 | 2007-05-10 23:04:11 -0700 | [diff] [blame] | 175 | enum cxacru_poll_state poll_state; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 176 | |
| 177 | /* contol handles */ |
Arjan van de Ven | ab3c81f | 2006-01-13 15:52:55 +0100 | [diff] [blame] | 178 | struct mutex cm_serialize; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 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 | |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 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 | |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 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 | |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 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 | |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 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) |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 211 | #define CXACRU_CMD_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name) |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 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) |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 215 | #define CXACRU_CMD_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name) |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 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 | { |
Simon Arlott | 87e71b4 | 2007-05-10 23:04:11 -0700 | [diff] [blame] | 230 | return snprintf(buf, PAGE_SIZE, "%d.%02u\n", |
| 231 | value / 100, abs(value) % 100); |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf) |
| 235 | { |
Simon Arlott | 87e71b4 | 2007-05-10 23:04:11 -0700 | [diff] [blame] | 236 | static char *str[] = { "no", "yes" }; |
| 237 | if (unlikely(value >= ARRAY_SIZE(str))) |
| 238 | return snprintf(buf, PAGE_SIZE, "%u\n", value); |
| 239 | return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 240 | } |
| 241 | |
| 242 | static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf) |
| 243 | { |
Simon Arlott | 87e71b4 | 2007-05-10 23:04:11 -0700 | [diff] [blame] | 244 | static char *str[] = { NULL, "not connected", "connected", "lost" }; |
| 245 | if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL)) |
| 246 | return snprintf(buf, PAGE_SIZE, "%u\n", value); |
| 247 | return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf) |
| 251 | { |
Simon Arlott | 87e71b4 | 2007-05-10 23:04:11 -0700 | [diff] [blame] | 252 | static char *str[] = { "down", "attempting to activate", |
| 253 | "training", "channel analysis", "exchange", "up", |
| 254 | "waiting", "initialising" |
| 255 | }; |
| 256 | if (unlikely(value >= ARRAY_SIZE(str))) |
| 257 | return snprintf(buf, PAGE_SIZE, "%u\n", value); |
| 258 | return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 259 | } |
| 260 | |
| 261 | static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf) |
| 262 | { |
Simon Arlott | 87e71b4 | 2007-05-10 23:04:11 -0700 | [diff] [blame] | 263 | static char *str[] = { |
| 264 | NULL, |
| 265 | "ANSI T1.413", |
| 266 | "ITU-T G.992.1 (G.DMT)", |
| 267 | "ITU-T G.992.2 (G.LITE)" |
| 268 | }; |
| 269 | if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL)) |
| 270 | return snprintf(buf, PAGE_SIZE, "%u\n", value); |
| 271 | return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | /* |
| 275 | * This could use MAC_ADDRESS_HIGH and MAC_ADDRESS_LOW, but since |
| 276 | * this data is already in atm_dev there's no point. |
| 277 | * |
| 278 | * MAC_ADDRESS_HIGH = 0x????5544 |
| 279 | * MAC_ADDRESS_LOW = 0x33221100 |
| 280 | * Where 00-55 are bytes 0-5 of the MAC. |
| 281 | */ |
| 282 | static ssize_t cxacru_sysfs_show_mac_address(struct device *dev, |
| 283 | struct device_attribute *attr, char *buf) |
| 284 | { |
| 285 | struct usb_interface *intf = to_usb_interface(dev); |
| 286 | struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); |
| 287 | struct atm_dev *atm_dev = usbatm_instance->atm_dev; |
| 288 | |
| 289 | return snprintf(buf, PAGE_SIZE, "%02x:%02x:%02x:%02x:%02x:%02x\n", |
| 290 | atm_dev->esi[0], atm_dev->esi[1], atm_dev->esi[2], |
| 291 | atm_dev->esi[3], atm_dev->esi[4], atm_dev->esi[5]); |
| 292 | } |
| 293 | |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 294 | static ssize_t cxacru_sysfs_show_adsl_state(struct device *dev, |
| 295 | struct device_attribute *attr, char *buf) |
| 296 | { |
| 297 | struct usb_interface *intf = to_usb_interface(dev); |
| 298 | struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); |
| 299 | struct cxacru_data *instance = usbatm_instance->driver_data; |
| 300 | u32 value = instance->card_info[CXINF_LINE_STARTABLE]; |
| 301 | |
Simon Arlott | 87e71b4 | 2007-05-10 23:04:11 -0700 | [diff] [blame] | 302 | static char *str[] = { "running", "stopped" }; |
| 303 | if (unlikely(value >= ARRAY_SIZE(str))) |
| 304 | return snprintf(buf, PAGE_SIZE, "%u\n", value); |
| 305 | return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev, |
| 309 | struct device_attribute *attr, const char *buf, size_t count) |
| 310 | { |
| 311 | struct usb_interface *intf = to_usb_interface(dev); |
| 312 | struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); |
| 313 | struct cxacru_data *instance = usbatm_instance->driver_data; |
| 314 | int ret; |
| 315 | int poll = -1; |
| 316 | char str_cmd[8]; |
| 317 | int len = strlen(buf); |
| 318 | |
| 319 | if (!capable(CAP_NET_ADMIN)) |
| 320 | return -EACCES; |
| 321 | |
| 322 | ret = sscanf(buf, "%7s", str_cmd); |
| 323 | if (ret != 1) |
| 324 | return -EINVAL; |
| 325 | ret = 0; |
| 326 | |
| 327 | if (mutex_lock_interruptible(&instance->adsl_state_serialize)) |
| 328 | return -ERESTARTSYS; |
| 329 | |
| 330 | if (!strcmp(str_cmd, "stop") || !strcmp(str_cmd, "restart")) { |
| 331 | ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_STOP, NULL, 0, NULL, 0); |
| 332 | if (ret < 0) { |
| 333 | atm_err(usbatm_instance, "change adsl state:" |
| 334 | " CHIP_ADSL_LINE_STOP returned %d\n", ret); |
| 335 | |
| 336 | ret = -EIO; |
| 337 | } else { |
| 338 | ret = len; |
| 339 | poll = CXPOLL_STOPPED; |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | /* Line status is only updated every second |
| 344 | * and the device appears to only react to |
| 345 | * START/STOP every second too. Wait 1.5s to |
| 346 | * be sure that restart will have an effect. */ |
| 347 | if (!strcmp(str_cmd, "restart")) |
| 348 | msleep(1500); |
| 349 | |
| 350 | if (!strcmp(str_cmd, "start") || !strcmp(str_cmd, "restart")) { |
| 351 | ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0); |
| 352 | if (ret < 0) { |
| 353 | atm_err(usbatm_instance, "change adsl state:" |
| 354 | " CHIP_ADSL_LINE_START returned %d\n", ret); |
| 355 | |
| 356 | ret = -EIO; |
| 357 | } else { |
| 358 | ret = len; |
| 359 | poll = CXPOLL_POLLING; |
| 360 | } |
| 361 | } |
| 362 | |
| 363 | if (!strcmp(str_cmd, "poll")) { |
| 364 | ret = len; |
| 365 | poll = CXPOLL_POLLING; |
| 366 | } |
| 367 | |
| 368 | if (ret == 0) { |
| 369 | ret = -EINVAL; |
| 370 | poll = -1; |
| 371 | } |
| 372 | |
| 373 | if (poll == CXPOLL_POLLING) { |
| 374 | mutex_lock(&instance->poll_state_serialize); |
| 375 | switch (instance->poll_state) { |
| 376 | case CXPOLL_STOPPED: |
| 377 | /* start polling */ |
| 378 | instance->poll_state = CXPOLL_POLLING; |
| 379 | break; |
| 380 | |
| 381 | case CXPOLL_STOPPING: |
| 382 | /* abort stop request */ |
| 383 | instance->poll_state = CXPOLL_POLLING; |
| 384 | case CXPOLL_POLLING: |
| 385 | case CXPOLL_SHUTDOWN: |
| 386 | /* don't start polling */ |
| 387 | poll = -1; |
| 388 | } |
| 389 | mutex_unlock(&instance->poll_state_serialize); |
| 390 | } else if (poll == CXPOLL_STOPPED) { |
| 391 | mutex_lock(&instance->poll_state_serialize); |
| 392 | /* request stop */ |
| 393 | if (instance->poll_state == CXPOLL_POLLING) |
| 394 | instance->poll_state = CXPOLL_STOPPING; |
| 395 | mutex_unlock(&instance->poll_state_serialize); |
| 396 | } |
| 397 | |
| 398 | mutex_unlock(&instance->adsl_state_serialize); |
| 399 | |
| 400 | if (poll == CXPOLL_POLLING) |
| 401 | cxacru_poll_status(&instance->poll_work.work); |
| 402 | |
| 403 | return ret; |
| 404 | } |
| 405 | |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 406 | /* |
| 407 | * All device attributes are included in CXACRU_ALL_FILES |
| 408 | * so that the same list can be used multiple times: |
| 409 | * INIT (define the device attributes) |
| 410 | * CREATE (create all the device files) |
| 411 | * REMOVE (remove all the device files) |
| 412 | * |
| 413 | * With the last two being defined as needed in the functions |
| 414 | * they are used in before calling CXACRU_ALL_FILES() |
| 415 | */ |
| 416 | #define CXACRU_ALL_FILES(_action) \ |
| 417 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_RATE, u32, downstream_rate); \ |
| 418 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_RATE, u32, upstream_rate); \ |
| 419 | CXACRU_ATTR_##_action(CXINF_LINK_STATUS, LINK, link_status); \ |
| 420 | CXACRU_ATTR_##_action(CXINF_LINE_STATUS, LINE, line_status); \ |
| 421 | CXACRU__ATTR_##_action( mac_address); \ |
| 422 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_SNR_MARGIN, dB, upstream_snr_margin); \ |
| 423 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_SNR_MARGIN, dB, downstream_snr_margin); \ |
| 424 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_ATTENUATION, dB, upstream_attenuation); \ |
| 425 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_ATTENUATION, dB, downstream_attenuation); \ |
| 426 | CXACRU_ATTR_##_action(CXINF_TRANSMITTER_POWER, s8, transmitter_power); \ |
| 427 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_BITS_PER_FRAME, u32, upstream_bits_per_frame); \ |
| 428 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_BITS_PER_FRAME, u32, downstream_bits_per_frame); \ |
| 429 | CXACRU_ATTR_##_action(CXINF_STARTUP_ATTEMPTS, u32, startup_attempts); \ |
| 430 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_CRC_ERRORS, u32, upstream_crc_errors); \ |
| 431 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_CRC_ERRORS, u32, downstream_crc_errors); \ |
| 432 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_FEC_ERRORS, u32, upstream_fec_errors); \ |
| 433 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_FEC_ERRORS, u32, downstream_fec_errors); \ |
| 434 | CXACRU_ATTR_##_action(CXINF_UPSTREAM_HEC_ERRORS, u32, upstream_hec_errors); \ |
| 435 | CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_HEC_ERRORS, u32, downstream_hec_errors); \ |
| 436 | CXACRU_ATTR_##_action(CXINF_LINE_STARTABLE, bool, line_startable); \ |
| 437 | CXACRU_ATTR_##_action(CXINF_MODULATION, MODU, modulation); \ |
| 438 | CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND, u32, adsl_headend); \ |
| 439 | CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND_ENVIRONMENT, u32, adsl_headend_environment); \ |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 440 | CXACRU_ATTR_##_action(CXINF_CONTROLLER_VERSION, u32, adsl_controller_version); \ |
| 441 | CXACRU_CMD_##_action( adsl_state); |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 442 | |
| 443 | CXACRU_ALL_FILES(INIT); |
| 444 | |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 445 | /* the following three functions are stolen from drivers/usb/core/message.c */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 446 | static void cxacru_blocking_completion(struct urb *urb) |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 447 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 448 | complete(urb->context); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 449 | } |
| 450 | |
| 451 | static void cxacru_timeout_kill(unsigned long data) |
| 452 | { |
| 453 | usb_unlink_urb((struct urb *) data); |
| 454 | } |
| 455 | |
| 456 | static int cxacru_start_wait_urb(struct urb *urb, struct completion *done, |
| 457 | int* actual_length) |
| 458 | { |
| 459 | struct timer_list timer; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 460 | |
| 461 | init_timer(&timer); |
| 462 | timer.expires = jiffies + msecs_to_jiffies(CMD_TIMEOUT); |
| 463 | timer.data = (unsigned long) urb; |
| 464 | timer.function = cxacru_timeout_kill; |
| 465 | add_timer(&timer); |
| 466 | wait_for_completion(done); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 467 | del_timer_sync(&timer); |
| 468 | |
| 469 | if (actual_length) |
| 470 | *actual_length = urb->actual_length; |
Oliver Neukum | 3b79cc2 | 2007-08-16 16:06:06 +0200 | [diff] [blame] | 471 | return urb->status; /* must read status after completion */ |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 472 | } |
| 473 | |
| 474 | static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, |
| 475 | u8 *wdata, int wsize, u8 *rdata, int rsize) |
| 476 | { |
| 477 | int ret, actlen; |
| 478 | int offb, offd; |
| 479 | const int stride = CMD_PACKET_SIZE - 4; |
| 480 | u8 *wbuf = instance->snd_buf; |
| 481 | u8 *rbuf = instance->rcv_buf; |
| 482 | int wbuflen = ((wsize - 1) / stride + 1) * CMD_PACKET_SIZE; |
| 483 | int rbuflen = ((rsize - 1) / stride + 1) * CMD_PACKET_SIZE; |
| 484 | |
| 485 | if (wbuflen > PAGE_SIZE || rbuflen > PAGE_SIZE) { |
Simon Arlott | 4ac0718 | 2007-09-25 20:20:10 +0100 | [diff] [blame] | 486 | if (printk_ratelimit()) |
| 487 | usb_err(instance->usbatm, "requested transfer size too large (%d, %d)\n", |
| 488 | wbuflen, rbuflen); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 489 | ret = -ENOMEM; |
| 490 | goto fail; |
| 491 | } |
| 492 | |
Arjan van de Ven | ab3c81f | 2006-01-13 15:52:55 +0100 | [diff] [blame] | 493 | mutex_lock(&instance->cm_serialize); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 494 | |
| 495 | /* submit reading urb before the writing one */ |
| 496 | init_completion(&instance->rcv_done); |
| 497 | ret = usb_submit_urb(instance->rcv_urb, GFP_KERNEL); |
| 498 | if (ret < 0) { |
Simon Arlott | 4ac0718 | 2007-09-25 20:20:10 +0100 | [diff] [blame] | 499 | if (printk_ratelimit()) |
| 500 | usb_err(instance->usbatm, "submit of read urb for cm %#x failed (%d)\n", |
| 501 | cm, ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 502 | goto fail; |
| 503 | } |
| 504 | |
| 505 | memset(wbuf, 0, wbuflen); |
| 506 | /* handle wsize == 0 */ |
| 507 | wbuf[0] = cm; |
| 508 | for (offb = offd = 0; offd < wsize; offd += stride, offb += CMD_PACKET_SIZE) { |
| 509 | wbuf[offb] = cm; |
| 510 | memcpy(wbuf + offb + 4, wdata + offd, min_t(int, stride, wsize - offd)); |
| 511 | } |
| 512 | |
| 513 | instance->snd_urb->transfer_buffer_length = wbuflen; |
| 514 | init_completion(&instance->snd_done); |
| 515 | ret = usb_submit_urb(instance->snd_urb, GFP_KERNEL); |
| 516 | if (ret < 0) { |
Simon Arlott | 4ac0718 | 2007-09-25 20:20:10 +0100 | [diff] [blame] | 517 | if (printk_ratelimit()) |
| 518 | usb_err(instance->usbatm, "submit of write urb for cm %#x failed (%d)\n", |
| 519 | cm, ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 520 | goto fail; |
| 521 | } |
| 522 | |
| 523 | ret = cxacru_start_wait_urb(instance->snd_urb, &instance->snd_done, NULL); |
| 524 | if (ret < 0) { |
Simon Arlott | 4ac0718 | 2007-09-25 20:20:10 +0100 | [diff] [blame] | 525 | if (printk_ratelimit()) |
| 526 | usb_err(instance->usbatm, "send of cm %#x failed (%d)\n", cm, ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 527 | goto fail; |
| 528 | } |
| 529 | |
| 530 | ret = cxacru_start_wait_urb(instance->rcv_urb, &instance->rcv_done, &actlen); |
| 531 | if (ret < 0) { |
Simon Arlott | 4ac0718 | 2007-09-25 20:20:10 +0100 | [diff] [blame] | 532 | if (printk_ratelimit()) |
| 533 | usb_err(instance->usbatm, "receive of cm %#x failed (%d)\n", cm, ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 534 | goto fail; |
| 535 | } |
| 536 | if (actlen % CMD_PACKET_SIZE || !actlen) { |
Simon Arlott | 4ac0718 | 2007-09-25 20:20:10 +0100 | [diff] [blame] | 537 | if (printk_ratelimit()) |
| 538 | usb_err(instance->usbatm, "invalid response length to cm %#x: %d\n", |
| 539 | cm, actlen); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 540 | ret = -EIO; |
| 541 | goto fail; |
| 542 | } |
| 543 | |
| 544 | /* check the return status and copy the data to the output buffer, if needed */ |
| 545 | for (offb = offd = 0; offd < rsize && offb < actlen; offb += CMD_PACKET_SIZE) { |
| 546 | if (rbuf[offb] != cm) { |
Simon Arlott | 4ac0718 | 2007-09-25 20:20:10 +0100 | [diff] [blame] | 547 | if (printk_ratelimit()) |
| 548 | usb_err(instance->usbatm, "wrong cm %#x in response to cm %#x\n", |
| 549 | rbuf[offb], cm); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 550 | ret = -EIO; |
| 551 | goto fail; |
| 552 | } |
| 553 | if (rbuf[offb + 1] != CM_STATUS_SUCCESS) { |
Simon Arlott | 4ac0718 | 2007-09-25 20:20:10 +0100 | [diff] [blame] | 554 | if (printk_ratelimit()) |
| 555 | usb_err(instance->usbatm, "response to cm %#x failed: %#x\n", |
| 556 | cm, rbuf[offb + 1]); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 557 | ret = -EIO; |
| 558 | goto fail; |
| 559 | } |
| 560 | if (offd >= rsize) |
| 561 | break; |
| 562 | memcpy(rdata + offd, rbuf + offb + 4, min_t(int, stride, rsize - offd)); |
| 563 | offd += stride; |
| 564 | } |
| 565 | |
| 566 | ret = offd; |
| 567 | dbg("cm %#x", cm); |
| 568 | fail: |
Arjan van de Ven | ab3c81f | 2006-01-13 15:52:55 +0100 | [diff] [blame] | 569 | mutex_unlock(&instance->cm_serialize); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 570 | return ret; |
| 571 | } |
| 572 | |
| 573 | static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_request cm, |
| 574 | u32 *data, int size) |
| 575 | { |
| 576 | int ret, len; |
Al Viro | fd05e72 | 2008-04-28 07:00:16 +0100 | [diff] [blame] | 577 | __le32 *buf; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 578 | int offb, offd; |
| 579 | const int stride = CMD_PACKET_SIZE / (4 * 2) - 1; |
| 580 | int buflen = ((size - 1) / stride + 1 + size * 2) * 4; |
| 581 | |
| 582 | buf = kmalloc(buflen, GFP_KERNEL); |
| 583 | if (!buf) |
| 584 | return -ENOMEM; |
| 585 | |
| 586 | ret = cxacru_cm(instance, cm, NULL, 0, (u8 *) buf, buflen); |
| 587 | if (ret < 0) |
| 588 | goto cleanup; |
| 589 | |
| 590 | /* len > 0 && len % 4 == 0 guaranteed by cxacru_cm() */ |
| 591 | len = ret / 4; |
| 592 | for (offb = 0; offb < len; ) { |
| 593 | int l = le32_to_cpu(buf[offb++]); |
| 594 | if (l > stride || l > (len - offb) / 2) { |
Simon Arlott | 4ac0718 | 2007-09-25 20:20:10 +0100 | [diff] [blame] | 595 | if (printk_ratelimit()) |
| 596 | usb_err(instance->usbatm, "invalid data length from cm %#x: %d\n", |
| 597 | cm, l); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 598 | ret = -EIO; |
| 599 | goto cleanup; |
| 600 | } |
| 601 | while (l--) { |
| 602 | offd = le32_to_cpu(buf[offb++]); |
| 603 | if (offd >= size) { |
Simon Arlott | 4ac0718 | 2007-09-25 20:20:10 +0100 | [diff] [blame] | 604 | if (printk_ratelimit()) |
| 605 | usb_err(instance->usbatm, "wrong index #%x in response to cm #%x\n", |
| 606 | offd, cm); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 607 | ret = -EIO; |
| 608 | goto cleanup; |
| 609 | } |
| 610 | data[offd] = le32_to_cpu(buf[offb++]); |
| 611 | } |
| 612 | } |
| 613 | |
| 614 | ret = 0; |
| 615 | |
| 616 | cleanup: |
| 617 | kfree(buf); |
| 618 | return ret; |
| 619 | } |
| 620 | |
| 621 | static int cxacru_card_status(struct cxacru_data *instance) |
| 622 | { |
| 623 | int ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0); |
| 624 | if (ret < 0) { /* firmware not loaded */ |
| 625 | dbg("cxacru_adsl_start: CARD_GET_STATUS returned %d", ret); |
| 626 | return ret; |
| 627 | } |
| 628 | return 0; |
| 629 | } |
| 630 | |
Simon Arlott | da1f82b5 | 2007-05-10 23:04:12 -0700 | [diff] [blame] | 631 | static void cxacru_remove_device_files(struct usbatm_data *usbatm_instance, |
| 632 | struct atm_dev *atm_dev) |
| 633 | { |
| 634 | struct usb_interface *intf = usbatm_instance->usb_intf; |
| 635 | |
| 636 | #define CXACRU_DEVICE_REMOVE_FILE(_name) \ |
| 637 | device_remove_file(&intf->dev, &dev_attr_##_name); |
| 638 | CXACRU_ALL_FILES(REMOVE); |
| 639 | #undef CXACRU_DEVICE_REMOVE_FILE |
| 640 | } |
| 641 | |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 642 | static int cxacru_atm_start(struct usbatm_data *usbatm_instance, |
| 643 | struct atm_dev *atm_dev) |
| 644 | { |
| 645 | struct cxacru_data *instance = usbatm_instance->driver_data; |
Simon Arlott | da1f82b5 | 2007-05-10 23:04:12 -0700 | [diff] [blame] | 646 | struct usb_interface *intf = usbatm_instance->usb_intf; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 647 | /* |
| 648 | struct atm_dev *atm_dev = usbatm_instance->atm_dev; |
| 649 | */ |
| 650 | int ret; |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 651 | int start_polling = 1; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 652 | |
| 653 | dbg("cxacru_atm_start"); |
| 654 | |
| 655 | /* Read MAC address */ |
| 656 | ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_MAC_ADDRESS, NULL, 0, |
| 657 | atm_dev->esi, sizeof(atm_dev->esi)); |
| 658 | if (ret < 0) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 659 | atm_err(usbatm_instance, "cxacru_atm_start: CARD_GET_MAC_ADDRESS returned %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 660 | return ret; |
| 661 | } |
| 662 | |
Simon Arlott | da1f82b5 | 2007-05-10 23:04:12 -0700 | [diff] [blame] | 663 | #define CXACRU_DEVICE_CREATE_FILE(_name) \ |
| 664 | ret = device_create_file(&intf->dev, &dev_attr_##_name); \ |
| 665 | if (unlikely(ret)) \ |
| 666 | goto fail_sysfs; |
| 667 | CXACRU_ALL_FILES(CREATE); |
| 668 | #undef CXACRU_DEVICE_CREATE_FILE |
| 669 | |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 670 | /* start ADSL */ |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 671 | mutex_lock(&instance->adsl_state_serialize); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 672 | ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0); |
Simon Arlott | fd209e3 | 2007-05-10 23:04:13 -0700 | [diff] [blame] | 673 | if (ret < 0) |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 674 | atm_err(usbatm_instance, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 675 | |
| 676 | /* Start status polling */ |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 677 | mutex_lock(&instance->poll_state_serialize); |
| 678 | switch (instance->poll_state) { |
| 679 | case CXPOLL_STOPPED: |
| 680 | /* start polling */ |
| 681 | instance->poll_state = CXPOLL_POLLING; |
| 682 | break; |
| 683 | |
| 684 | case CXPOLL_STOPPING: |
| 685 | /* abort stop request */ |
| 686 | instance->poll_state = CXPOLL_POLLING; |
| 687 | case CXPOLL_POLLING: |
| 688 | case CXPOLL_SHUTDOWN: |
| 689 | /* don't start polling */ |
| 690 | start_polling = 0; |
| 691 | } |
| 692 | mutex_unlock(&instance->poll_state_serialize); |
| 693 | mutex_unlock(&instance->adsl_state_serialize); |
| 694 | |
| 695 | if (start_polling) |
| 696 | cxacru_poll_status(&instance->poll_work.work); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 697 | return 0; |
Simon Arlott | da1f82b5 | 2007-05-10 23:04:12 -0700 | [diff] [blame] | 698 | |
| 699 | fail_sysfs: |
| 700 | usb_err(usbatm_instance, "cxacru_atm_start: device_create_file failed (%d)\n", ret); |
| 701 | cxacru_remove_device_files(usbatm_instance, atm_dev); |
| 702 | return ret; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 703 | } |
| 704 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 705 | static void cxacru_poll_status(struct work_struct *work) |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 706 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 707 | struct cxacru_data *instance = |
| 708 | container_of(work, struct cxacru_data, poll_work.work); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 709 | u32 buf[CXINF_MAX] = {}; |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 710 | struct usbatm_data *usbatm = instance->usbatm; |
| 711 | struct atm_dev *atm_dev = usbatm->atm_dev; |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 712 | int keep_polling = 1; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 713 | int ret; |
| 714 | |
| 715 | ret = cxacru_cm_get_array(instance, CM_REQUEST_CARD_INFO_GET, buf, CXINF_MAX); |
| 716 | if (ret < 0) { |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 717 | if (ret != -ESHUTDOWN) |
| 718 | atm_warn(usbatm, "poll status: error %d\n", ret); |
| 719 | |
| 720 | mutex_lock(&instance->poll_state_serialize); |
| 721 | if (instance->poll_state != CXPOLL_SHUTDOWN) { |
| 722 | instance->poll_state = CXPOLL_STOPPED; |
| 723 | |
| 724 | if (ret != -ESHUTDOWN) |
| 725 | atm_warn(usbatm, "polling disabled, set adsl_state" |
| 726 | " to 'start' or 'poll' to resume\n"); |
| 727 | } |
| 728 | mutex_unlock(&instance->poll_state_serialize); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 729 | goto reschedule; |
| 730 | } |
| 731 | |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 732 | memcpy(instance->card_info, buf, sizeof(instance->card_info)); |
| 733 | |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 734 | if (instance->adsl_status != buf[CXINF_LINE_STARTABLE]) { |
| 735 | instance->adsl_status = buf[CXINF_LINE_STARTABLE]; |
| 736 | |
| 737 | switch (instance->adsl_status) { |
| 738 | case 0: |
| 739 | atm_printk(KERN_INFO, usbatm, "ADSL state: running\n"); |
| 740 | break; |
| 741 | |
| 742 | case 1: |
| 743 | atm_printk(KERN_INFO, usbatm, "ADSL state: stopped\n"); |
| 744 | break; |
| 745 | |
| 746 | default: |
| 747 | atm_printk(KERN_INFO, usbatm, "Unknown adsl status %02x\n", instance->adsl_status); |
| 748 | break; |
| 749 | } |
| 750 | } |
| 751 | |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 752 | if (instance->line_status == buf[CXINF_LINE_STATUS]) |
| 753 | goto reschedule; |
| 754 | |
| 755 | instance->line_status = buf[CXINF_LINE_STATUS]; |
| 756 | switch (instance->line_status) { |
| 757 | case 0: |
| 758 | atm_dev->signal = ATM_PHY_SIG_LOST; |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 759 | atm_info(usbatm, "ADSL line: down\n"); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 760 | break; |
| 761 | |
| 762 | case 1: |
| 763 | atm_dev->signal = ATM_PHY_SIG_LOST; |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 764 | atm_info(usbatm, "ADSL line: attempting to activate\n"); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 765 | break; |
| 766 | |
| 767 | case 2: |
| 768 | atm_dev->signal = ATM_PHY_SIG_LOST; |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 769 | atm_info(usbatm, "ADSL line: training\n"); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 770 | break; |
| 771 | |
| 772 | case 3: |
| 773 | atm_dev->signal = ATM_PHY_SIG_LOST; |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 774 | atm_info(usbatm, "ADSL line: channel analysis\n"); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 775 | break; |
| 776 | |
| 777 | case 4: |
| 778 | atm_dev->signal = ATM_PHY_SIG_LOST; |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 779 | atm_info(usbatm, "ADSL line: exchange\n"); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 780 | break; |
| 781 | |
| 782 | case 5: |
| 783 | atm_dev->link_rate = buf[CXINF_DOWNSTREAM_RATE] * 1000 / 424; |
| 784 | atm_dev->signal = ATM_PHY_SIG_FOUND; |
| 785 | |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 786 | atm_info(usbatm, "ADSL line: up (%d kb/s down | %d kb/s up)\n", |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 787 | buf[CXINF_DOWNSTREAM_RATE], buf[CXINF_UPSTREAM_RATE]); |
| 788 | break; |
| 789 | |
| 790 | case 6: |
| 791 | atm_dev->signal = ATM_PHY_SIG_LOST; |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 792 | atm_info(usbatm, "ADSL line: waiting\n"); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 793 | break; |
| 794 | |
| 795 | case 7: |
| 796 | atm_dev->signal = ATM_PHY_SIG_LOST; |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 797 | atm_info(usbatm, "ADSL line: initializing\n"); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 798 | break; |
| 799 | |
| 800 | default: |
| 801 | atm_dev->signal = ATM_PHY_SIG_UNKNOWN; |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 802 | atm_info(usbatm, "Unknown line state %02x\n", instance->line_status); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 803 | break; |
| 804 | } |
| 805 | reschedule: |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 806 | |
| 807 | mutex_lock(&instance->poll_state_serialize); |
| 808 | if (instance->poll_state == CXPOLL_STOPPING && |
| 809 | instance->adsl_status == 1 && /* stopped */ |
| 810 | instance->line_status == 0) /* down */ |
| 811 | instance->poll_state = CXPOLL_STOPPED; |
| 812 | |
| 813 | if (instance->poll_state == CXPOLL_STOPPED) |
| 814 | keep_polling = 0; |
| 815 | mutex_unlock(&instance->poll_state_serialize); |
| 816 | |
| 817 | if (keep_polling) |
| 818 | schedule_delayed_work(&instance->poll_work, |
| 819 | round_jiffies_relative(POLL_INTERVAL*HZ)); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 820 | } |
| 821 | |
| 822 | static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw, |
David Woodhouse | 3b216d1 | 2008-05-24 00:05:28 +0100 | [diff] [blame] | 823 | u8 code1, u8 code2, u32 addr, const u8 *data, int size) |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 824 | { |
| 825 | int ret; |
| 826 | u8 *buf; |
| 827 | int offd, offb; |
| 828 | const int stride = CMD_PACKET_SIZE - 8; |
| 829 | |
| 830 | buf = (u8 *) __get_free_page(GFP_KERNEL); |
| 831 | if (!buf) |
| 832 | return -ENOMEM; |
| 833 | |
| 834 | offb = offd = 0; |
| 835 | do { |
| 836 | int l = min_t(int, stride, size - offd); |
| 837 | buf[offb++] = fw; |
| 838 | buf[offb++] = l; |
| 839 | buf[offb++] = code1; |
| 840 | buf[offb++] = code2; |
Al Viro | fd05e72 | 2008-04-28 07:00:16 +0100 | [diff] [blame] | 841 | put_unaligned(cpu_to_le32(addr), (__le32 *)(buf + offb)); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 842 | offb += 4; |
| 843 | addr += l; |
| 844 | if(l) |
| 845 | memcpy(buf + offb, data + offd, l); |
| 846 | if (l < stride) |
| 847 | memset(buf + offb + l, 0, stride - l); |
| 848 | offb += stride; |
| 849 | offd += stride; |
| 850 | if ((offb >= PAGE_SIZE) || (offd >= size)) { |
| 851 | ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD), |
| 852 | buf, offb, NULL, CMD_TIMEOUT); |
| 853 | if (ret < 0) { |
| 854 | dbg("sending fw %#x failed", fw); |
| 855 | goto cleanup; |
| 856 | } |
| 857 | offb = 0; |
| 858 | } |
| 859 | } while(offd < size); |
| 860 | dbg("sent fw %#x", fw); |
| 861 | |
| 862 | ret = 0; |
| 863 | |
| 864 | cleanup: |
| 865 | free_page((unsigned long) buf); |
| 866 | return ret; |
| 867 | } |
| 868 | |
| 869 | static void cxacru_upload_firmware(struct cxacru_data *instance, |
| 870 | const struct firmware *fw, |
| 871 | const struct firmware *bp, |
| 872 | const struct firmware *cf) |
| 873 | { |
| 874 | int ret; |
| 875 | int off; |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 876 | struct usbatm_data *usbatm = instance->usbatm; |
| 877 | struct usb_device *usb_dev = usbatm->usb_dev; |
Al Viro | fd05e72 | 2008-04-28 07:00:16 +0100 | [diff] [blame] | 878 | __le16 signature[] = { usb_dev->descriptor.idVendor, |
| 879 | usb_dev->descriptor.idProduct }; |
| 880 | __le32 val; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 881 | |
| 882 | dbg("cxacru_upload_firmware"); |
| 883 | |
| 884 | /* FirmwarePllFClkValue */ |
| 885 | val = cpu_to_le32(instance->modem_type->pll_f_clk); |
| 886 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLFCLK_ADDR, (u8 *) &val, 4); |
| 887 | if (ret) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 888 | usb_err(usbatm, "FirmwarePllFClkValue failed: %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 889 | return; |
| 890 | } |
| 891 | |
| 892 | /* FirmwarePllBClkValue */ |
| 893 | val = cpu_to_le32(instance->modem_type->pll_b_clk); |
| 894 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLBCLK_ADDR, (u8 *) &val, 4); |
| 895 | if (ret) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 896 | usb_err(usbatm, "FirmwarePllBClkValue failed: %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 897 | return; |
| 898 | } |
| 899 | |
| 900 | /* Enable SDRAM */ |
| 901 | val = cpu_to_le32(SDRAM_ENA); |
| 902 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SDRAMEN_ADDR, (u8 *) &val, 4); |
| 903 | if (ret) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 904 | usb_err(usbatm, "Enable SDRAM failed: %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 905 | return; |
| 906 | } |
| 907 | |
| 908 | /* Firmware */ |
| 909 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, FW_ADDR, fw->data, fw->size); |
| 910 | if (ret) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 911 | usb_err(usbatm, "Firmware upload failed: %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 912 | return; |
| 913 | } |
| 914 | |
| 915 | /* Boot ROM patch */ |
| 916 | if (instance->modem_type->boot_rom_patch) { |
| 917 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_ADDR, bp->data, bp->size); |
| 918 | if (ret) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 919 | usb_err(usbatm, "Boot ROM patching failed: %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 920 | return; |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | /* Signature */ |
| 925 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SIG_ADDR, (u8 *) signature, 4); |
| 926 | if (ret) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 927 | usb_err(usbatm, "Signature storing failed: %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 928 | return; |
| 929 | } |
| 930 | |
| 931 | if (instance->modem_type->boot_rom_patch) { |
| 932 | val = cpu_to_le32(BR_ADDR); |
| 933 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_STACK_ADDR, (u8 *) &val, 4); |
| 934 | } |
| 935 | else { |
| 936 | ret = cxacru_fw(usb_dev, FW_GOTO_MEM, 0x0, 0x0, FW_ADDR, NULL, 0); |
| 937 | } |
| 938 | if (ret) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 939 | usb_err(usbatm, "Passing control to firmware failed: %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 940 | return; |
| 941 | } |
| 942 | |
| 943 | /* Delay to allow firmware to start up. */ |
| 944 | msleep_interruptible(1000); |
| 945 | |
| 946 | usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD)); |
| 947 | usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_CMD)); |
| 948 | usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_DATA)); |
| 949 | usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_DATA)); |
| 950 | |
| 951 | ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0); |
| 952 | if (ret < 0) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 953 | usb_err(usbatm, "modem failed to initialize: %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 954 | return; |
| 955 | } |
| 956 | |
| 957 | /* Load config data (le32), doing one packet at a time */ |
| 958 | if (cf) |
| 959 | for (off = 0; off < cf->size / 4; ) { |
Al Viro | fd05e72 | 2008-04-28 07:00:16 +0100 | [diff] [blame] | 960 | __le32 buf[CMD_PACKET_SIZE / 4 - 1]; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 961 | int i, len = min_t(int, cf->size / 4 - off, CMD_PACKET_SIZE / 4 / 2 - 1); |
| 962 | buf[0] = cpu_to_le32(len); |
| 963 | for (i = 0; i < len; i++, off++) { |
| 964 | buf[i * 2 + 1] = cpu_to_le32(off); |
| 965 | memcpy(buf + i * 2 + 2, cf->data + off * 4, 4); |
| 966 | } |
| 967 | ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET, |
| 968 | (u8 *) buf, len, NULL, 0); |
| 969 | if (ret < 0) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 970 | usb_err(usbatm, "load config data failed: %d\n", ret); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 971 | return; |
| 972 | } |
| 973 | } |
| 974 | |
| 975 | msleep_interruptible(4000); |
| 976 | } |
| 977 | |
| 978 | static int cxacru_find_firmware(struct cxacru_data *instance, |
| 979 | char* phase, const struct firmware **fw_p) |
| 980 | { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 981 | struct usbatm_data *usbatm = instance->usbatm; |
| 982 | struct device *dev = &usbatm->usb_intf->dev; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 983 | char buf[16]; |
| 984 | |
| 985 | sprintf(buf, "cxacru-%s.bin", phase); |
| 986 | dbg("cxacru_find_firmware: looking for %s", buf); |
| 987 | |
| 988 | if (request_firmware(fw_p, buf, dev)) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 989 | usb_dbg(usbatm, "no stage %s firmware found\n", phase); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 990 | return -ENOENT; |
| 991 | } |
| 992 | |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 993 | usb_info(usbatm, "found firmware %s\n", buf); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 994 | |
| 995 | return 0; |
| 996 | } |
| 997 | |
| 998 | static int cxacru_heavy_init(struct usbatm_data *usbatm_instance, |
| 999 | struct usb_interface *usb_intf) |
| 1000 | { |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1001 | const struct firmware *fw, *bp, *cf; |
| 1002 | struct cxacru_data *instance = usbatm_instance->driver_data; |
| 1003 | |
| 1004 | int ret = cxacru_find_firmware(instance, "fw", &fw); |
| 1005 | if (ret) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 1006 | usb_warn(usbatm_instance, "firmware (cxacru-fw.bin) unavailable (system misconfigured?)\n"); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1007 | return ret; |
| 1008 | } |
| 1009 | |
| 1010 | if (instance->modem_type->boot_rom_patch) { |
| 1011 | ret = cxacru_find_firmware(instance, "bp", &bp); |
| 1012 | if (ret) { |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 1013 | usb_warn(usbatm_instance, "boot ROM patch (cxacru-bp.bin) unavailable (system misconfigured?)\n"); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1014 | release_firmware(fw); |
| 1015 | return ret; |
| 1016 | } |
| 1017 | } |
| 1018 | |
| 1019 | if (cxacru_find_firmware(instance, "cf", &cf)) /* optional */ |
| 1020 | cf = NULL; |
| 1021 | |
| 1022 | cxacru_upload_firmware(instance, fw, bp, cf); |
| 1023 | |
| 1024 | if (cf) |
| 1025 | release_firmware(cf); |
| 1026 | if (instance->modem_type->boot_rom_patch) |
| 1027 | release_firmware(bp); |
| 1028 | release_firmware(fw); |
| 1029 | |
| 1030 | ret = cxacru_card_status(instance); |
| 1031 | if (ret) |
| 1032 | dbg("modem initialisation failed"); |
| 1033 | else |
| 1034 | dbg("done setting up the modem"); |
| 1035 | |
| 1036 | return ret; |
| 1037 | } |
| 1038 | |
| 1039 | static int cxacru_bind(struct usbatm_data *usbatm_instance, |
Duncan Sands | 35644b0 | 2006-01-17 11:16:13 +0100 | [diff] [blame] | 1040 | struct usb_interface *intf, const struct usb_device_id *id) |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1041 | { |
| 1042 | struct cxacru_data *instance; |
| 1043 | struct usb_device *usb_dev = interface_to_usbdev(intf); |
| 1044 | int ret; |
| 1045 | |
| 1046 | /* instance init */ |
Duncan Sands | 9a734ef | 2006-01-13 09:38:22 +0100 | [diff] [blame] | 1047 | instance = kzalloc(sizeof(*instance), GFP_KERNEL); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1048 | if (!instance) { |
| 1049 | dbg("cxacru_bind: no memory for instance data"); |
| 1050 | return -ENOMEM; |
| 1051 | } |
| 1052 | |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1053 | instance->usbatm = usbatm_instance; |
| 1054 | instance->modem_type = (struct cxacru_modem_type *) id->driver_info; |
| 1055 | |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 1056 | mutex_init(&instance->poll_state_serialize); |
| 1057 | instance->poll_state = CXPOLL_STOPPED; |
| 1058 | instance->line_status = -1; |
| 1059 | instance->adsl_status = -1; |
| 1060 | |
| 1061 | mutex_init(&instance->adsl_state_serialize); |
| 1062 | |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1063 | instance->rcv_buf = (u8 *) __get_free_page(GFP_KERNEL); |
| 1064 | if (!instance->rcv_buf) { |
| 1065 | dbg("cxacru_bind: no memory for rcv_buf"); |
| 1066 | ret = -ENOMEM; |
| 1067 | goto fail; |
| 1068 | } |
| 1069 | instance->snd_buf = (u8 *) __get_free_page(GFP_KERNEL); |
| 1070 | if (!instance->snd_buf) { |
| 1071 | dbg("cxacru_bind: no memory for snd_buf"); |
| 1072 | ret = -ENOMEM; |
| 1073 | goto fail; |
| 1074 | } |
| 1075 | instance->rcv_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 1076 | if (!instance->rcv_urb) { |
| 1077 | dbg("cxacru_bind: no memory for rcv_urb"); |
| 1078 | ret = -ENOMEM; |
| 1079 | goto fail; |
| 1080 | } |
| 1081 | instance->snd_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 1082 | if (!instance->snd_urb) { |
| 1083 | dbg("cxacru_bind: no memory for snd_urb"); |
| 1084 | ret = -ENOMEM; |
| 1085 | goto fail; |
| 1086 | } |
| 1087 | |
| 1088 | usb_fill_int_urb(instance->rcv_urb, |
| 1089 | usb_dev, usb_rcvintpipe(usb_dev, CXACRU_EP_CMD), |
| 1090 | instance->rcv_buf, PAGE_SIZE, |
| 1091 | cxacru_blocking_completion, &instance->rcv_done, 1); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1092 | |
| 1093 | usb_fill_int_urb(instance->snd_urb, |
| 1094 | usb_dev, usb_sndintpipe(usb_dev, CXACRU_EP_CMD), |
| 1095 | instance->snd_buf, PAGE_SIZE, |
| 1096 | cxacru_blocking_completion, &instance->snd_done, 4); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1097 | |
Arjan van de Ven | ab3c81f | 2006-01-13 15:52:55 +0100 | [diff] [blame] | 1098 | mutex_init(&instance->cm_serialize); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1099 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1100 | INIT_DELAYED_WORK(&instance->poll_work, cxacru_poll_status); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1101 | |
| 1102 | usbatm_instance->driver_data = instance; |
| 1103 | |
Duncan Sands | 35644b0 | 2006-01-17 11:16:13 +0100 | [diff] [blame] | 1104 | usbatm_instance->flags = (cxacru_card_status(instance) ? 0 : UDSL_SKIP_HEAVY_INIT); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1105 | |
| 1106 | return 0; |
| 1107 | |
| 1108 | fail: |
| 1109 | free_page((unsigned long) instance->snd_buf); |
| 1110 | free_page((unsigned long) instance->rcv_buf); |
| 1111 | usb_free_urb(instance->snd_urb); |
| 1112 | usb_free_urb(instance->rcv_urb); |
| 1113 | kfree(instance); |
| 1114 | |
| 1115 | return ret; |
| 1116 | } |
| 1117 | |
| 1118 | static void cxacru_unbind(struct usbatm_data *usbatm_instance, |
| 1119 | struct usb_interface *intf) |
| 1120 | { |
| 1121 | struct cxacru_data *instance = usbatm_instance->driver_data; |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 1122 | int is_polling = 1; |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1123 | |
| 1124 | dbg("cxacru_unbind entered"); |
| 1125 | |
| 1126 | if (!instance) { |
| 1127 | dbg("cxacru_unbind: NULL instance!"); |
| 1128 | return; |
| 1129 | } |
| 1130 | |
Simon Arlott | 6a02c996 | 2007-04-26 00:38:05 -0700 | [diff] [blame] | 1131 | mutex_lock(&instance->poll_state_serialize); |
| 1132 | BUG_ON(instance->poll_state == CXPOLL_SHUTDOWN); |
| 1133 | |
| 1134 | /* ensure that status polling continues unless |
| 1135 | * it has already stopped */ |
| 1136 | if (instance->poll_state == CXPOLL_STOPPED) |
| 1137 | is_polling = 0; |
| 1138 | |
| 1139 | /* stop polling from being stopped or started */ |
| 1140 | instance->poll_state = CXPOLL_SHUTDOWN; |
| 1141 | mutex_unlock(&instance->poll_state_serialize); |
| 1142 | |
| 1143 | if (is_polling) |
| 1144 | cancel_rearming_delayed_work(&instance->poll_work); |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1145 | |
| 1146 | usb_kill_urb(instance->snd_urb); |
| 1147 | usb_kill_urb(instance->rcv_urb); |
| 1148 | usb_free_urb(instance->snd_urb); |
| 1149 | usb_free_urb(instance->rcv_urb); |
| 1150 | |
| 1151 | free_page((unsigned long) instance->snd_buf); |
| 1152 | free_page((unsigned long) instance->rcv_buf); |
Simon Arlott | fa70fe4 | 2007-03-06 02:47:45 -0800 | [diff] [blame] | 1153 | |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1154 | kfree(instance); |
| 1155 | |
| 1156 | usbatm_instance->driver_data = NULL; |
| 1157 | } |
| 1158 | |
| 1159 | static const struct cxacru_modem_type cxacru_cafe = { |
| 1160 | .pll_f_clk = 0x02d874df, |
| 1161 | .pll_b_clk = 0x0196a51a, |
| 1162 | .boot_rom_patch = 1, |
| 1163 | }; |
| 1164 | |
| 1165 | static const struct cxacru_modem_type cxacru_cb00 = { |
| 1166 | .pll_f_clk = 0x5, |
| 1167 | .pll_b_clk = 0x3, |
| 1168 | .boot_rom_patch = 0, |
| 1169 | }; |
| 1170 | |
| 1171 | static const struct usb_device_id cxacru_usb_ids[] = { |
| 1172 | { /* V = Conexant P = ADSL modem (Euphrates project) */ |
| 1173 | USB_DEVICE(0x0572, 0xcafe), .driver_info = (unsigned long) &cxacru_cafe |
| 1174 | }, |
| 1175 | { /* V = Conexant P = ADSL modem (Hasbani project) */ |
| 1176 | USB_DEVICE(0x0572, 0xcb00), .driver_info = (unsigned long) &cxacru_cb00 |
| 1177 | }, |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1178 | { /* V = Conexant P = ADSL modem */ |
| 1179 | USB_DEVICE(0x0572, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00 |
| 1180 | }, |
Duncan Sands | 0ec3c7e | 2006-01-17 11:15:13 +0100 | [diff] [blame] | 1181 | { /* V = Conexant P = ADSL modem (Well PTI-800) */ |
| 1182 | USB_DEVICE(0x0572, 0xcb02), .driver_info = (unsigned long) &cxacru_cb00 |
| 1183 | }, |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1184 | { /* V = Conexant P = ADSL modem */ |
| 1185 | USB_DEVICE(0x0572, 0xcb06), .driver_info = (unsigned long) &cxacru_cb00 |
| 1186 | }, |
Duncan Sands | 44960af | 2006-10-05 11:05:50 +0200 | [diff] [blame] | 1187 | { /* V = Conexant P = ADSL modem (ZTE ZXDSL 852) */ |
| 1188 | USB_DEVICE(0x0572, 0xcb07), .driver_info = (unsigned long) &cxacru_cb00 |
| 1189 | }, |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1190 | { /* V = Olitec P = ADSL modem version 2 */ |
| 1191 | USB_DEVICE(0x08e3, 0x0100), .driver_info = (unsigned long) &cxacru_cafe |
| 1192 | }, |
| 1193 | { /* V = Olitec P = ADSL modem version 3 */ |
| 1194 | USB_DEVICE(0x08e3, 0x0102), .driver_info = (unsigned long) &cxacru_cb00 |
| 1195 | }, |
| 1196 | { /* V = Trust/Amigo Technology Co. P = AMX-CA86U */ |
| 1197 | USB_DEVICE(0x0eb0, 0x3457), .driver_info = (unsigned long) &cxacru_cafe |
| 1198 | }, |
| 1199 | { /* V = Zoom P = 5510 */ |
| 1200 | USB_DEVICE(0x1803, 0x5510), .driver_info = (unsigned long) &cxacru_cb00 |
| 1201 | }, |
| 1202 | { /* V = Draytek P = Vigor 318 */ |
| 1203 | USB_DEVICE(0x0675, 0x0200), .driver_info = (unsigned long) &cxacru_cb00 |
| 1204 | }, |
| 1205 | { /* V = Zyxel P = 630-C1 aka OMNI ADSL USB (Annex A) */ |
| 1206 | USB_DEVICE(0x0586, 0x330a), .driver_info = (unsigned long) &cxacru_cb00 |
| 1207 | }, |
| 1208 | { /* V = Zyxel P = 630-C3 aka OMNI ADSL USB (Annex B) */ |
| 1209 | USB_DEVICE(0x0586, 0x330b), .driver_info = (unsigned long) &cxacru_cb00 |
| 1210 | }, |
| 1211 | { /* V = Aethra P = Starmodem UM1020 */ |
| 1212 | USB_DEVICE(0x0659, 0x0020), .driver_info = (unsigned long) &cxacru_cb00 |
| 1213 | }, |
| 1214 | { /* V = Aztech Systems P = ? AKA Pirelli AUA-010 */ |
| 1215 | USB_DEVICE(0x0509, 0x0812), .driver_info = (unsigned long) &cxacru_cb00 |
| 1216 | }, |
| 1217 | { /* V = Netopia P = Cayman 3341(Annex A)/3351(Annex B) */ |
| 1218 | USB_DEVICE(0x100d, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00 |
| 1219 | }, |
| 1220 | { /* V = Netopia P = Cayman 3342(Annex A)/3352(Annex B) */ |
| 1221 | USB_DEVICE(0x100d, 0x3342), .driver_info = (unsigned long) &cxacru_cb00 |
| 1222 | }, |
| 1223 | {} |
| 1224 | }; |
| 1225 | |
| 1226 | MODULE_DEVICE_TABLE(usb, cxacru_usb_ids); |
| 1227 | |
| 1228 | static struct usbatm_driver cxacru_driver = { |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1229 | .driver_name = cxacru_driver_name, |
| 1230 | .bind = cxacru_bind, |
| 1231 | .heavy_init = cxacru_heavy_init, |
| 1232 | .unbind = cxacru_unbind, |
| 1233 | .atm_start = cxacru_atm_start, |
Simon Arlott | da1f82b5 | 2007-05-10 23:04:12 -0700 | [diff] [blame] | 1234 | .atm_stop = cxacru_remove_device_files, |
Duncan Sands | 80aae7a | 2006-01-13 10:59:23 +0100 | [diff] [blame] | 1235 | .bulk_in = CXACRU_EP_DATA, |
| 1236 | .bulk_out = CXACRU_EP_DATA, |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1237 | .rx_padding = 3, |
| 1238 | .tx_padding = 11, |
| 1239 | }; |
| 1240 | |
| 1241 | static int cxacru_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| 1242 | { |
| 1243 | return usbatm_usb_probe(intf, id, &cxacru_driver); |
| 1244 | } |
| 1245 | |
| 1246 | static struct usb_driver cxacru_usb_driver = { |
Duncan Sands | 1b0e614 | 2005-05-11 20:19:29 +0200 | [diff] [blame] | 1247 | .name = cxacru_driver_name, |
| 1248 | .probe = cxacru_usb_probe, |
| 1249 | .disconnect = usbatm_usb_disconnect, |
| 1250 | .id_table = cxacru_usb_ids |
| 1251 | }; |
| 1252 | |
| 1253 | static int __init cxacru_init(void) |
| 1254 | { |
| 1255 | return usb_register(&cxacru_usb_driver); |
| 1256 | } |
| 1257 | |
| 1258 | static void __exit cxacru_cleanup(void) |
| 1259 | { |
| 1260 | usb_deregister(&cxacru_usb_driver); |
| 1261 | } |
| 1262 | |
| 1263 | module_init(cxacru_init); |
| 1264 | module_exit(cxacru_cleanup); |
| 1265 | |
| 1266 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 1267 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 1268 | MODULE_LICENSE("GPL"); |
| 1269 | MODULE_VERSION(DRIVER_VERSION); |