Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 1 | /* |
| 2 | |
| 3 | Driver for the Marvell 8385 based compact flash WLAN cards. |
| 4 | |
| 5 | (C) 2007 by Holger Schurig <hs4233@mail.mn-solutions.de> |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; see the file COPYING. If not, write to |
| 19 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, |
| 20 | Boston, MA 02110-1301, USA. |
| 21 | |
| 22 | */ |
| 23 | |
| 24 | #include <linux/module.h> |
| 25 | #include <linux/delay.h> |
| 26 | #include <linux/moduleparam.h> |
| 27 | #include <linux/firmware.h> |
| 28 | #include <linux/netdevice.h> |
| 29 | |
| 30 | #include <pcmcia/cs_types.h> |
| 31 | #include <pcmcia/cs.h> |
| 32 | #include <pcmcia/cistpl.h> |
| 33 | #include <pcmcia/ds.h> |
| 34 | |
| 35 | #include <linux/io.h> |
| 36 | |
| 37 | #define DRV_NAME "libertas_cs" |
| 38 | |
| 39 | #include "decl.h" |
| 40 | #include "defs.h" |
| 41 | #include "dev.h" |
| 42 | |
| 43 | |
| 44 | /********************************************************************/ |
| 45 | /* Module stuff */ |
| 46 | /********************************************************************/ |
| 47 | |
| 48 | MODULE_AUTHOR("Holger Schurig <hs4233@mail.mn-solutions.de>"); |
| 49 | MODULE_DESCRIPTION("Driver for Marvell 83xx compact flash WLAN cards"); |
| 50 | MODULE_LICENSE("GPL"); |
| 51 | |
| 52 | |
| 53 | |
| 54 | /********************************************************************/ |
| 55 | /* Data structures */ |
| 56 | /********************************************************************/ |
| 57 | |
| 58 | struct if_cs_card { |
| 59 | struct pcmcia_device *p_dev; |
Holger Schurig | 69f9032 | 2007-11-23 15:43:44 +0100 | [diff] [blame] | 60 | struct lbs_private *priv; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 61 | void __iomem *iobase; |
| 62 | }; |
| 63 | |
| 64 | |
| 65 | |
| 66 | /********************************************************************/ |
| 67 | /* Hardware access */ |
| 68 | /********************************************************************/ |
| 69 | |
| 70 | /* This define enables wrapper functions which allow you |
| 71 | to dump all register accesses. You normally won't this, |
| 72 | except for development */ |
| 73 | /* #define DEBUG_IO */ |
| 74 | |
| 75 | #ifdef DEBUG_IO |
| 76 | static int debug_output = 0; |
| 77 | #else |
| 78 | /* This way the compiler optimizes the printk's away */ |
| 79 | #define debug_output 0 |
| 80 | #endif |
| 81 | |
| 82 | static inline unsigned int if_cs_read8(struct if_cs_card *card, uint reg) |
| 83 | { |
| 84 | unsigned int val = ioread8(card->iobase + reg); |
| 85 | if (debug_output) |
| 86 | printk(KERN_INFO "##inb %08x<%02x\n", reg, val); |
| 87 | return val; |
| 88 | } |
| 89 | static inline unsigned int if_cs_read16(struct if_cs_card *card, uint reg) |
| 90 | { |
| 91 | unsigned int val = ioread16(card->iobase + reg); |
| 92 | if (debug_output) |
| 93 | printk(KERN_INFO "##inw %08x<%04x\n", reg, val); |
| 94 | return val; |
| 95 | } |
| 96 | static inline void if_cs_read16_rep( |
| 97 | struct if_cs_card *card, |
| 98 | uint reg, |
| 99 | void *buf, |
| 100 | unsigned long count) |
| 101 | { |
| 102 | if (debug_output) |
| 103 | printk(KERN_INFO "##insw %08x<(0x%lx words)\n", |
| 104 | reg, count); |
| 105 | ioread16_rep(card->iobase + reg, buf, count); |
| 106 | } |
| 107 | |
| 108 | static inline void if_cs_write8(struct if_cs_card *card, uint reg, u8 val) |
| 109 | { |
| 110 | if (debug_output) |
| 111 | printk(KERN_INFO "##outb %08x>%02x\n", reg, val); |
| 112 | iowrite8(val, card->iobase + reg); |
| 113 | } |
| 114 | |
| 115 | static inline void if_cs_write16(struct if_cs_card *card, uint reg, u16 val) |
| 116 | { |
| 117 | if (debug_output) |
| 118 | printk(KERN_INFO "##outw %08x>%04x\n", reg, val); |
| 119 | iowrite16(val, card->iobase + reg); |
| 120 | } |
| 121 | |
| 122 | static inline void if_cs_write16_rep( |
| 123 | struct if_cs_card *card, |
| 124 | uint reg, |
| 125 | void *buf, |
| 126 | unsigned long count) |
| 127 | { |
| 128 | if (debug_output) |
| 129 | printk(KERN_INFO "##outsw %08x>(0x%lx words)\n", |
| 130 | reg, count); |
| 131 | iowrite16_rep(card->iobase + reg, buf, count); |
| 132 | } |
| 133 | |
| 134 | |
| 135 | /* |
| 136 | * I know that polling/delaying is frowned upon. However, this procedure |
| 137 | * with polling is needed while downloading the firmware. At this stage, |
| 138 | * the hardware does unfortunately not create any interrupts. |
| 139 | * |
| 140 | * Fortunately, this function is never used once the firmware is in |
| 141 | * the card. :-) |
| 142 | * |
| 143 | * As a reference, see the "Firmware Specification v5.1", page 18 |
| 144 | * and 19. I did not follow their suggested timing to the word, |
| 145 | * but this works nice & fast anyway. |
| 146 | */ |
| 147 | static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 reg) |
| 148 | { |
| 149 | int i; |
| 150 | |
Holger Schurig | 4ef3170 | 2007-10-09 10:41:57 +0200 | [diff] [blame] | 151 | for (i = 0; i < 1000; i++) { |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 152 | u8 val = if_cs_read8(card, addr); |
| 153 | if (val == reg) |
| 154 | return i; |
Holger Schurig | 4ef3170 | 2007-10-09 10:41:57 +0200 | [diff] [blame] | 155 | udelay(500); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 156 | } |
| 157 | return -ETIME; |
| 158 | } |
| 159 | |
| 160 | |
| 161 | |
| 162 | /* Host control registers and their bit definitions */ |
| 163 | |
| 164 | #define IF_CS_H_STATUS 0x00000000 |
| 165 | #define IF_CS_H_STATUS_TX_OVER 0x0001 |
| 166 | #define IF_CS_H_STATUS_RX_OVER 0x0002 |
| 167 | #define IF_CS_H_STATUS_DNLD_OVER 0x0004 |
| 168 | |
| 169 | #define IF_CS_H_INT_CAUSE 0x00000002 |
| 170 | #define IF_CS_H_IC_TX_OVER 0x0001 |
| 171 | #define IF_CS_H_IC_RX_OVER 0x0002 |
| 172 | #define IF_CS_H_IC_DNLD_OVER 0x0004 |
Holger Schurig | 6591e36 | 2007-11-26 09:35:44 +0100 | [diff] [blame] | 173 | #define IF_CS_H_IC_POWER_DOWN 0x0008 |
| 174 | #define IF_CS_H_IC_HOST_EVENT 0x0010 |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 175 | #define IF_CS_H_IC_MASK 0x001f |
| 176 | |
| 177 | #define IF_CS_H_INT_MASK 0x00000004 |
| 178 | #define IF_CS_H_IM_MASK 0x001f |
| 179 | |
| 180 | #define IF_CS_H_WRITE_LEN 0x00000014 |
| 181 | |
| 182 | #define IF_CS_H_WRITE 0x00000016 |
| 183 | |
| 184 | #define IF_CS_H_CMD_LEN 0x00000018 |
| 185 | |
| 186 | #define IF_CS_H_CMD 0x0000001A |
| 187 | |
| 188 | #define IF_CS_C_READ_LEN 0x00000024 |
| 189 | |
| 190 | #define IF_CS_H_READ 0x00000010 |
| 191 | |
| 192 | /* Card control registers and their bit definitions */ |
| 193 | |
| 194 | #define IF_CS_C_STATUS 0x00000020 |
| 195 | #define IF_CS_C_S_TX_DNLD_RDY 0x0001 |
| 196 | #define IF_CS_C_S_RX_UPLD_RDY 0x0002 |
| 197 | #define IF_CS_C_S_CMD_DNLD_RDY 0x0004 |
| 198 | #define IF_CS_C_S_CMD_UPLD_RDY 0x0008 |
| 199 | #define IF_CS_C_S_CARDEVENT 0x0010 |
| 200 | #define IF_CS_C_S_MASK 0x001f |
| 201 | #define IF_CS_C_S_STATUS_MASK 0x7f00 |
| 202 | /* The following definitions should be the same as the MRVDRV_ ones */ |
| 203 | |
| 204 | #if MRVDRV_CMD_DNLD_RDY != IF_CS_C_S_CMD_DNLD_RDY |
| 205 | #error MRVDRV_CMD_DNLD_RDY and IF_CS_C_S_CMD_DNLD_RDY not in sync |
| 206 | #endif |
| 207 | #if MRVDRV_CMD_UPLD_RDY != IF_CS_C_S_CMD_UPLD_RDY |
| 208 | #error MRVDRV_CMD_UPLD_RDY and IF_CS_C_S_CMD_UPLD_RDY not in sync |
| 209 | #endif |
| 210 | #if MRVDRV_CARDEVENT != IF_CS_C_S_CARDEVENT |
| 211 | #error MRVDRV_CARDEVENT and IF_CS_C_S_CARDEVENT not in sync |
| 212 | #endif |
| 213 | |
| 214 | #define IF_CS_C_INT_CAUSE 0x00000022 |
| 215 | #define IF_CS_C_IC_MASK 0x001f |
| 216 | |
| 217 | #define IF_CS_C_SQ_READ_LOW 0x00000028 |
| 218 | #define IF_CS_C_SQ_HELPER_OK 0x10 |
| 219 | |
| 220 | #define IF_CS_C_CMD_LEN 0x00000030 |
| 221 | |
| 222 | #define IF_CS_C_CMD 0x00000012 |
| 223 | |
| 224 | #define IF_CS_SCRATCH 0x0000003F |
| 225 | |
| 226 | |
| 227 | |
| 228 | /********************************************************************/ |
| 229 | /* Interrupts */ |
| 230 | /********************************************************************/ |
| 231 | |
| 232 | static inline void if_cs_enable_ints(struct if_cs_card *card) |
| 233 | { |
| 234 | lbs_deb_enter(LBS_DEB_CS); |
| 235 | if_cs_write16(card, IF_CS_H_INT_MASK, 0); |
| 236 | } |
| 237 | |
| 238 | static inline void if_cs_disable_ints(struct if_cs_card *card) |
| 239 | { |
| 240 | lbs_deb_enter(LBS_DEB_CS); |
| 241 | if_cs_write16(card, IF_CS_H_INT_MASK, IF_CS_H_IM_MASK); |
| 242 | } |
| 243 | |
| 244 | static irqreturn_t if_cs_interrupt(int irq, void *data) |
| 245 | { |
Jeff Garzik | 28fc1f5 | 2007-10-29 05:46:16 -0400 | [diff] [blame] | 246 | struct if_cs_card *card = data; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 247 | u16 int_cause; |
| 248 | |
| 249 | lbs_deb_enter(LBS_DEB_CS); |
| 250 | |
| 251 | int_cause = if_cs_read16(card, IF_CS_C_INT_CAUSE); |
Holger Schurig | fdfb92e | 2008-01-25 14:15:48 +0100 | [diff] [blame] | 252 | if (int_cause == 0x0) { |
Ryan Mallon | 28de0b3 | 2007-09-06 21:32:42 -0400 | [diff] [blame] | 253 | /* Not for us */ |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 254 | return IRQ_NONE; |
Ryan Mallon | 28de0b3 | 2007-09-06 21:32:42 -0400 | [diff] [blame] | 255 | |
David Woodhouse | e775ed7 | 2007-12-06 14:36:11 +0000 | [diff] [blame] | 256 | } else if (int_cause == 0xffff) { |
Ryan Mallon | 28de0b3 | 2007-09-06 21:32:42 -0400 | [diff] [blame] | 257 | /* Read in junk, the card has probably been removed */ |
David Woodhouse | aa21c00 | 2007-12-08 20:04:36 +0000 | [diff] [blame] | 258 | card->priv->surpriseremoved = 1; |
Holger Schurig | fdfb92e | 2008-01-25 14:15:48 +0100 | [diff] [blame] | 259 | return IRQ_HANDLED; |
Ryan Mallon | 28de0b3 | 2007-09-06 21:32:42 -0400 | [diff] [blame] | 260 | } else { |
David Woodhouse | e775ed7 | 2007-12-06 14:36:11 +0000 | [diff] [blame] | 261 | if (int_cause & IF_CS_H_IC_TX_OVER) |
| 262 | lbs_host_to_card_done(card->priv); |
Ryan Mallon | 28de0b3 | 2007-09-06 21:32:42 -0400 | [diff] [blame] | 263 | |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 264 | /* clear interrupt */ |
| 265 | if_cs_write16(card, IF_CS_C_INT_CAUSE, int_cause & IF_CS_C_IC_MASK); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 266 | } |
David Woodhouse | 4f67949 | 2007-12-10 14:58:37 -0500 | [diff] [blame] | 267 | spin_lock(&card->priv->driver_lock); |
| 268 | lbs_interrupt(card->priv); |
| 269 | spin_unlock(&card->priv->driver_lock); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 270 | |
| 271 | return IRQ_HANDLED; |
| 272 | } |
| 273 | |
| 274 | |
| 275 | |
| 276 | |
| 277 | /********************************************************************/ |
| 278 | /* I/O */ |
| 279 | /********************************************************************/ |
| 280 | |
| 281 | /* |
| 282 | * Called from if_cs_host_to_card to send a command to the hardware |
| 283 | */ |
Holger Schurig | 69f9032 | 2007-11-23 15:43:44 +0100 | [diff] [blame] | 284 | static int if_cs_send_cmd(struct lbs_private *priv, u8 *buf, u16 nb) |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 285 | { |
| 286 | struct if_cs_card *card = (struct if_cs_card *)priv->card; |
| 287 | int ret = -1; |
| 288 | int loops = 0; |
| 289 | |
| 290 | lbs_deb_enter(LBS_DEB_CS); |
| 291 | |
| 292 | /* Is hardware ready? */ |
| 293 | while (1) { |
| 294 | u16 val = if_cs_read16(card, IF_CS_C_STATUS); |
| 295 | if (val & IF_CS_C_S_CMD_DNLD_RDY) |
| 296 | break; |
| 297 | if (++loops > 100) { |
| 298 | lbs_pr_err("card not ready for commands\n"); |
| 299 | goto done; |
| 300 | } |
| 301 | mdelay(1); |
| 302 | } |
| 303 | |
| 304 | if_cs_write16(card, IF_CS_H_CMD_LEN, nb); |
| 305 | |
| 306 | if_cs_write16_rep(card, IF_CS_H_CMD, buf, nb / 2); |
| 307 | /* Are we supposed to transfer an odd amount of bytes? */ |
| 308 | if (nb & 1) |
| 309 | if_cs_write8(card, IF_CS_H_CMD, buf[nb-1]); |
| 310 | |
| 311 | /* "Assert the download over interrupt command in the Host |
| 312 | * status register" */ |
| 313 | if_cs_write16(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER); |
| 314 | |
| 315 | /* "Assert the download over interrupt command in the Card |
| 316 | * interrupt case register" */ |
| 317 | if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER); |
| 318 | ret = 0; |
| 319 | |
| 320 | done: |
| 321 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); |
| 322 | return ret; |
| 323 | } |
| 324 | |
| 325 | |
| 326 | /* |
| 327 | * Called from if_cs_host_to_card to send a data to the hardware |
| 328 | */ |
Holger Schurig | 69f9032 | 2007-11-23 15:43:44 +0100 | [diff] [blame] | 329 | static void if_cs_send_data(struct lbs_private *priv, u8 *buf, u16 nb) |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 330 | { |
| 331 | struct if_cs_card *card = (struct if_cs_card *)priv->card; |
| 332 | |
| 333 | lbs_deb_enter(LBS_DEB_CS); |
| 334 | |
| 335 | if_cs_write16(card, IF_CS_H_WRITE_LEN, nb); |
| 336 | |
| 337 | /* write even number of bytes, then odd byte if necessary */ |
| 338 | if_cs_write16_rep(card, IF_CS_H_WRITE, buf, nb / 2); |
| 339 | if (nb & 1) |
| 340 | if_cs_write8(card, IF_CS_H_WRITE, buf[nb-1]); |
| 341 | |
| 342 | if_cs_write16(card, IF_CS_H_STATUS, IF_CS_H_STATUS_TX_OVER); |
| 343 | if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_STATUS_TX_OVER); |
| 344 | |
| 345 | lbs_deb_leave(LBS_DEB_CS); |
| 346 | } |
| 347 | |
| 348 | |
| 349 | /* |
| 350 | * Get the command result out of the card. |
| 351 | */ |
Holger Schurig | 69f9032 | 2007-11-23 15:43:44 +0100 | [diff] [blame] | 352 | static int if_cs_receive_cmdres(struct lbs_private *priv, u8 *data, u32 *len) |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 353 | { |
| 354 | int ret = -1; |
| 355 | u16 val; |
| 356 | |
| 357 | lbs_deb_enter(LBS_DEB_CS); |
| 358 | |
| 359 | /* is hardware ready? */ |
| 360 | val = if_cs_read16(priv->card, IF_CS_C_STATUS); |
| 361 | if ((val & IF_CS_C_S_CMD_UPLD_RDY) == 0) { |
| 362 | lbs_pr_err("card not ready for CMD\n"); |
| 363 | goto out; |
| 364 | } |
| 365 | |
| 366 | *len = if_cs_read16(priv->card, IF_CS_C_CMD_LEN); |
Dan Williams | ddac452 | 2007-12-11 13:49:39 -0500 | [diff] [blame] | 367 | if ((*len == 0) || (*len > LBS_CMD_BUFFER_SIZE)) { |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 368 | lbs_pr_err("card cmd buffer has invalid # of bytes (%d)\n", *len); |
| 369 | goto out; |
| 370 | } |
| 371 | |
| 372 | /* read even number of bytes, then odd byte if necessary */ |
| 373 | if_cs_read16_rep(priv->card, IF_CS_C_CMD, data, *len/sizeof(u16)); |
| 374 | if (*len & 1) |
| 375 | data[*len-1] = if_cs_read8(priv->card, IF_CS_C_CMD); |
| 376 | |
Holger Schurig | 09d4fad | 2007-12-06 13:50:30 +0100 | [diff] [blame] | 377 | /* This is a workaround for a firmware that reports too much |
| 378 | * bytes */ |
| 379 | *len -= 8; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 380 | ret = 0; |
| 381 | out: |
| 382 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d, len %d", ret, *len); |
| 383 | return ret; |
| 384 | } |
| 385 | |
| 386 | |
Holger Schurig | 69f9032 | 2007-11-23 15:43:44 +0100 | [diff] [blame] | 387 | static struct sk_buff *if_cs_receive_data(struct lbs_private *priv) |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 388 | { |
| 389 | struct sk_buff *skb = NULL; |
| 390 | u16 len; |
| 391 | u8 *data; |
| 392 | |
| 393 | lbs_deb_enter(LBS_DEB_CS); |
| 394 | |
| 395 | len = if_cs_read16(priv->card, IF_CS_C_READ_LEN); |
| 396 | if (len == 0 || len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) { |
| 397 | lbs_pr_err("card data buffer has invalid # of bytes (%d)\n", len); |
| 398 | priv->stats.rx_dropped++; |
| 399 | printk(KERN_INFO "##HS %s:%d TODO\n", __FUNCTION__, __LINE__); |
| 400 | goto dat_err; |
| 401 | } |
| 402 | |
| 403 | //TODO: skb = dev_alloc_skb(len+ETH_FRAME_LEN+MRVDRV_SNAP_HEADER_LEN+EXTRA_LEN); |
Vladimir Davydov | f31ce76b | 2007-09-06 21:41:02 -0400 | [diff] [blame] | 404 | skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + 2); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 405 | if (!skb) |
| 406 | goto out; |
Vladimir Davydov | f31ce76b | 2007-09-06 21:41:02 -0400 | [diff] [blame] | 407 | skb_put(skb, len); |
| 408 | skb_reserve(skb, 2);/* 16 byte align */ |
| 409 | data = skb->data; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 410 | |
| 411 | /* read even number of bytes, then odd byte if necessary */ |
| 412 | if_cs_read16_rep(priv->card, IF_CS_H_READ, data, len/sizeof(u16)); |
| 413 | if (len & 1) |
| 414 | data[len-1] = if_cs_read8(priv->card, IF_CS_H_READ); |
| 415 | |
| 416 | dat_err: |
| 417 | if_cs_write16(priv->card, IF_CS_H_STATUS, IF_CS_H_STATUS_RX_OVER); |
| 418 | if_cs_write16(priv->card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_RX_OVER); |
| 419 | |
| 420 | out: |
| 421 | lbs_deb_leave_args(LBS_DEB_CS, "ret %p", skb); |
| 422 | return skb; |
| 423 | } |
| 424 | |
| 425 | |
| 426 | |
| 427 | /********************************************************************/ |
| 428 | /* Firmware */ |
| 429 | /********************************************************************/ |
| 430 | |
| 431 | /* |
| 432 | * Tries to program the helper firmware. |
| 433 | * |
| 434 | * Return 0 on success |
| 435 | */ |
| 436 | static int if_cs_prog_helper(struct if_cs_card *card) |
| 437 | { |
| 438 | int ret = 0; |
| 439 | int sent = 0; |
| 440 | u8 scratch; |
| 441 | const struct firmware *fw; |
| 442 | |
| 443 | lbs_deb_enter(LBS_DEB_CS); |
| 444 | |
| 445 | scratch = if_cs_read8(card, IF_CS_SCRATCH); |
| 446 | |
| 447 | /* "If the value is 0x5a, the firmware is already |
| 448 | * downloaded successfully" |
| 449 | */ |
| 450 | if (scratch == 0x5a) |
| 451 | goto done; |
| 452 | |
| 453 | /* "If the value is != 00, it is invalid value of register */ |
| 454 | if (scratch != 0x00) { |
| 455 | ret = -ENODEV; |
| 456 | goto done; |
| 457 | } |
| 458 | |
| 459 | /* TODO: make firmware file configurable */ |
| 460 | ret = request_firmware(&fw, "libertas_cs_helper.fw", |
| 461 | &handle_to_dev(card->p_dev)); |
| 462 | if (ret) { |
| 463 | lbs_pr_err("can't load helper firmware\n"); |
| 464 | ret = -ENODEV; |
| 465 | goto done; |
| 466 | } |
Andrew Morton | 4ecd41b | 2007-08-21 02:15:45 -0700 | [diff] [blame] | 467 | lbs_deb_cs("helper size %td\n", fw->size); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 468 | |
| 469 | /* "Set the 5 bytes of the helper image to 0" */ |
| 470 | /* Not needed, this contains an ARM branch instruction */ |
| 471 | |
| 472 | for (;;) { |
| 473 | /* "the number of bytes to send is 256" */ |
| 474 | int count = 256; |
| 475 | int remain = fw->size - sent; |
| 476 | |
| 477 | if (remain < count) |
| 478 | count = remain; |
| 479 | /* printk(KERN_INFO "//HS %d loading %d of %d bytes\n", |
| 480 | __LINE__, sent, fw->size); */ |
| 481 | |
| 482 | /* "write the number of bytes to be sent to the I/O Command |
| 483 | * write length register" */ |
| 484 | if_cs_write16(card, IF_CS_H_CMD_LEN, count); |
| 485 | |
| 486 | /* "write this to I/O Command port register as 16 bit writes */ |
| 487 | if (count) |
| 488 | if_cs_write16_rep(card, IF_CS_H_CMD, |
| 489 | &fw->data[sent], |
| 490 | count >> 1); |
| 491 | |
| 492 | /* "Assert the download over interrupt command in the Host |
| 493 | * status register" */ |
| 494 | if_cs_write8(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER); |
| 495 | |
| 496 | /* "Assert the download over interrupt command in the Card |
| 497 | * interrupt case register" */ |
| 498 | if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER); |
| 499 | |
| 500 | /* "The host polls the Card Status register ... for 50 ms before |
| 501 | declaring a failure */ |
| 502 | ret = if_cs_poll_while_fw_download(card, IF_CS_C_STATUS, |
| 503 | IF_CS_C_S_CMD_DNLD_RDY); |
| 504 | if (ret < 0) { |
| 505 | lbs_pr_err("can't download helper at 0x%x, ret %d\n", |
| 506 | sent, ret); |
| 507 | goto done; |
| 508 | } |
| 509 | |
| 510 | if (count == 0) |
| 511 | break; |
| 512 | |
| 513 | sent += count; |
| 514 | } |
| 515 | |
| 516 | release_firmware(fw); |
| 517 | ret = 0; |
| 518 | |
| 519 | done: |
| 520 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); |
| 521 | return ret; |
| 522 | } |
| 523 | |
| 524 | |
| 525 | static int if_cs_prog_real(struct if_cs_card *card) |
| 526 | { |
| 527 | const struct firmware *fw; |
| 528 | int ret = 0; |
| 529 | int retry = 0; |
| 530 | int len = 0; |
| 531 | int sent; |
| 532 | |
| 533 | lbs_deb_enter(LBS_DEB_CS); |
| 534 | |
| 535 | /* TODO: make firmware file configurable */ |
| 536 | ret = request_firmware(&fw, "libertas_cs.fw", |
| 537 | &handle_to_dev(card->p_dev)); |
| 538 | if (ret) { |
| 539 | lbs_pr_err("can't load firmware\n"); |
| 540 | ret = -ENODEV; |
| 541 | goto done; |
| 542 | } |
Andrew Morton | 4ecd41b | 2007-08-21 02:15:45 -0700 | [diff] [blame] | 543 | lbs_deb_cs("fw size %td\n", fw->size); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 544 | |
| 545 | ret = if_cs_poll_while_fw_download(card, IF_CS_C_SQ_READ_LOW, IF_CS_C_SQ_HELPER_OK); |
| 546 | if (ret < 0) { |
| 547 | int i; |
| 548 | lbs_pr_err("helper firmware doesn't answer\n"); |
| 549 | for (i = 0; i < 0x50; i += 2) |
| 550 | printk(KERN_INFO "## HS %02x: %04x\n", |
| 551 | i, if_cs_read16(card, i)); |
| 552 | goto err_release; |
| 553 | } |
| 554 | |
| 555 | for (sent = 0; sent < fw->size; sent += len) { |
| 556 | len = if_cs_read16(card, IF_CS_C_SQ_READ_LOW); |
| 557 | /* printk(KERN_INFO "//HS %d loading %d of %d bytes\n", |
| 558 | __LINE__, sent, fw->size); */ |
| 559 | if (len & 1) { |
| 560 | retry++; |
| 561 | lbs_pr_info("odd, need to retry this firmware block\n"); |
| 562 | } else { |
| 563 | retry = 0; |
| 564 | } |
| 565 | |
| 566 | if (retry > 20) { |
| 567 | lbs_pr_err("could not download firmware\n"); |
| 568 | ret = -ENODEV; |
| 569 | goto err_release; |
| 570 | } |
| 571 | if (retry) { |
| 572 | sent -= len; |
| 573 | } |
| 574 | |
| 575 | |
| 576 | if_cs_write16(card, IF_CS_H_CMD_LEN, len); |
| 577 | |
| 578 | if_cs_write16_rep(card, IF_CS_H_CMD, |
| 579 | &fw->data[sent], |
| 580 | (len+1) >> 1); |
| 581 | if_cs_write8(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER); |
| 582 | if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER); |
| 583 | |
| 584 | ret = if_cs_poll_while_fw_download(card, IF_CS_C_STATUS, |
| 585 | IF_CS_C_S_CMD_DNLD_RDY); |
| 586 | if (ret < 0) { |
| 587 | lbs_pr_err("can't download firmware at 0x%x\n", sent); |
| 588 | goto err_release; |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a); |
| 593 | if (ret < 0) { |
| 594 | lbs_pr_err("firmware download failed\n"); |
| 595 | goto err_release; |
| 596 | } |
| 597 | |
| 598 | ret = 0; |
| 599 | goto done; |
| 600 | |
| 601 | |
| 602 | err_release: |
| 603 | release_firmware(fw); |
| 604 | |
| 605 | done: |
| 606 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); |
| 607 | return ret; |
| 608 | } |
| 609 | |
| 610 | |
| 611 | |
| 612 | /********************************************************************/ |
| 613 | /* Callback functions for libertas.ko */ |
| 614 | /********************************************************************/ |
| 615 | |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 616 | /* Send commands or data packets to the card */ |
Holger Schurig | 69f9032 | 2007-11-23 15:43:44 +0100 | [diff] [blame] | 617 | static int if_cs_host_to_card(struct lbs_private *priv, |
| 618 | u8 type, |
| 619 | u8 *buf, |
| 620 | u16 nb) |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 621 | { |
| 622 | int ret = -1; |
| 623 | |
| 624 | lbs_deb_enter_args(LBS_DEB_CS, "type %d, bytes %d", type, nb); |
| 625 | |
| 626 | switch (type) { |
| 627 | case MVMS_DAT: |
Ryan Mallon | 6f05cbe | 2007-09-06 21:30:32 -0400 | [diff] [blame] | 628 | priv->dnld_sent = DNLD_DATA_SENT; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 629 | if_cs_send_data(priv, buf, nb); |
| 630 | ret = 0; |
| 631 | break; |
| 632 | case MVMS_CMD: |
Ryan Mallon | 6f05cbe | 2007-09-06 21:30:32 -0400 | [diff] [blame] | 633 | priv->dnld_sent = DNLD_CMD_SENT; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 634 | ret = if_cs_send_cmd(priv, buf, nb); |
| 635 | break; |
| 636 | default: |
| 637 | lbs_pr_err("%s: unsupported type %d\n", __FUNCTION__, type); |
| 638 | } |
| 639 | |
| 640 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); |
| 641 | return ret; |
| 642 | } |
| 643 | |
| 644 | |
Holger Schurig | 69f9032 | 2007-11-23 15:43:44 +0100 | [diff] [blame] | 645 | static int if_cs_get_int_status(struct lbs_private *priv, u8 *ireg) |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 646 | { |
| 647 | struct if_cs_card *card = (struct if_cs_card *)priv->card; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 648 | int ret = 0; |
| 649 | u16 int_cause; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 650 | *ireg = 0; |
| 651 | |
| 652 | lbs_deb_enter(LBS_DEB_CS); |
| 653 | |
David Woodhouse | aa21c00 | 2007-12-08 20:04:36 +0000 | [diff] [blame] | 654 | if (priv->surpriseremoved) |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 655 | goto out; |
| 656 | |
| 657 | int_cause = if_cs_read16(card, IF_CS_C_INT_CAUSE) & IF_CS_C_IC_MASK; |
| 658 | if_cs_write16(card, IF_CS_C_INT_CAUSE, int_cause); |
| 659 | |
| 660 | *ireg = if_cs_read16(card, IF_CS_C_STATUS) & IF_CS_C_S_MASK; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 661 | |
| 662 | if (!*ireg) |
| 663 | goto sbi_get_int_status_exit; |
| 664 | |
| 665 | sbi_get_int_status_exit: |
| 666 | |
| 667 | /* is there a data packet for us? */ |
| 668 | if (*ireg & IF_CS_C_S_RX_UPLD_RDY) { |
| 669 | struct sk_buff *skb = if_cs_receive_data(priv); |
Holger Schurig | 1007832 | 2007-11-15 18:05:47 -0500 | [diff] [blame] | 670 | lbs_process_rxed_packet(priv, skb); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 671 | *ireg &= ~IF_CS_C_S_RX_UPLD_RDY; |
| 672 | } |
| 673 | |
| 674 | if (*ireg & IF_CS_C_S_TX_DNLD_RDY) { |
| 675 | priv->dnld_sent = DNLD_RES_RECEIVED; |
| 676 | } |
| 677 | |
| 678 | /* Card has a command result for us */ |
| 679 | if (*ireg & IF_CS_C_S_CMD_UPLD_RDY) { |
David Woodhouse | aa21c00 | 2007-12-08 20:04:36 +0000 | [diff] [blame] | 680 | spin_lock(&priv->driver_lock); |
David Woodhouse | 7003b07 | 2007-12-17 15:22:43 -0500 | [diff] [blame] | 681 | ret = if_cs_receive_cmdres(priv, priv->upld_buf, &priv->upld_len); |
David Woodhouse | aa21c00 | 2007-12-08 20:04:36 +0000 | [diff] [blame] | 682 | spin_unlock(&priv->driver_lock); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 683 | if (ret < 0) |
| 684 | lbs_pr_err("could not receive cmd from card\n"); |
| 685 | } |
| 686 | |
| 687 | out: |
David Woodhouse | aa21c00 | 2007-12-08 20:04:36 +0000 | [diff] [blame] | 688 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d, ireg 0x%x, hisregcpy 0x%x", ret, *ireg, priv->hisregcpy); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 689 | return ret; |
| 690 | } |
| 691 | |
| 692 | |
Holger Schurig | 69f9032 | 2007-11-23 15:43:44 +0100 | [diff] [blame] | 693 | static int if_cs_read_event_cause(struct lbs_private *priv) |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 694 | { |
| 695 | lbs_deb_enter(LBS_DEB_CS); |
| 696 | |
David Woodhouse | aa21c00 | 2007-12-08 20:04:36 +0000 | [diff] [blame] | 697 | priv->eventcause = (if_cs_read16(priv->card, IF_CS_C_STATUS) & IF_CS_C_S_STATUS_MASK) >> 5; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 698 | if_cs_write16(priv->card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_HOST_EVENT); |
| 699 | |
| 700 | return 0; |
| 701 | } |
| 702 | |
| 703 | |
| 704 | |
| 705 | /********************************************************************/ |
| 706 | /* Card Services */ |
| 707 | /********************************************************************/ |
| 708 | |
| 709 | /* |
| 710 | * After a card is removed, if_cs_release() will unregister the |
| 711 | * device, and release the PCMCIA configuration. If the device is |
| 712 | * still open, this will be postponed until it is closed. |
| 713 | */ |
| 714 | static void if_cs_release(struct pcmcia_device *p_dev) |
| 715 | { |
| 716 | struct if_cs_card *card = p_dev->priv; |
| 717 | |
| 718 | lbs_deb_enter(LBS_DEB_CS); |
| 719 | |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 720 | free_irq(p_dev->irq.AssignedIRQ, card); |
Holger Schurig | fdfb92e | 2008-01-25 14:15:48 +0100 | [diff] [blame] | 721 | pcmcia_disable_device(p_dev); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 722 | if (card->iobase) |
| 723 | ioport_unmap(card->iobase); |
| 724 | |
| 725 | lbs_deb_leave(LBS_DEB_CS); |
| 726 | } |
| 727 | |
| 728 | |
| 729 | /* |
| 730 | * This creates an "instance" of the driver, allocating local data |
| 731 | * structures for one device. The device is registered with Card |
| 732 | * Services. |
| 733 | * |
| 734 | * The dev_link structure is initialized, but we don't actually |
| 735 | * configure the card at this point -- we wait until we receive a card |
| 736 | * insertion event. |
| 737 | */ |
| 738 | static int if_cs_probe(struct pcmcia_device *p_dev) |
| 739 | { |
| 740 | int ret = -ENOMEM; |
Holger Schurig | 69f9032 | 2007-11-23 15:43:44 +0100 | [diff] [blame] | 741 | struct lbs_private *priv; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 742 | struct if_cs_card *card; |
| 743 | /* CIS parsing */ |
| 744 | tuple_t tuple; |
| 745 | cisparse_t parse; |
| 746 | cistpl_cftable_entry_t *cfg = &parse.cftable_entry; |
| 747 | cistpl_io_t *io = &cfg->io; |
| 748 | u_char buf[64]; |
| 749 | |
| 750 | lbs_deb_enter(LBS_DEB_CS); |
| 751 | |
| 752 | card = kzalloc(sizeof(struct if_cs_card), GFP_KERNEL); |
| 753 | if (!card) { |
| 754 | lbs_pr_err("error in kzalloc\n"); |
| 755 | goto out; |
| 756 | } |
| 757 | card->p_dev = p_dev; |
| 758 | p_dev->priv = card; |
| 759 | |
| 760 | p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; |
| 761 | p_dev->irq.Handler = NULL; |
| 762 | p_dev->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID; |
| 763 | |
| 764 | p_dev->conf.Attributes = 0; |
| 765 | p_dev->conf.IntType = INT_MEMORY_AND_IO; |
| 766 | |
| 767 | tuple.Attributes = 0; |
| 768 | tuple.TupleData = buf; |
| 769 | tuple.TupleDataMax = sizeof(buf); |
| 770 | tuple.TupleOffset = 0; |
| 771 | |
| 772 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; |
| 773 | if ((ret = pcmcia_get_first_tuple(p_dev, &tuple)) != 0 || |
| 774 | (ret = pcmcia_get_tuple_data(p_dev, &tuple)) != 0 || |
| 775 | (ret = pcmcia_parse_tuple(p_dev, &tuple, &parse)) != 0) |
| 776 | { |
| 777 | lbs_pr_err("error in pcmcia_get_first_tuple etc\n"); |
| 778 | goto out1; |
| 779 | } |
| 780 | |
| 781 | p_dev->conf.ConfigIndex = cfg->index; |
| 782 | |
| 783 | /* Do we need to allocate an interrupt? */ |
| 784 | if (cfg->irq.IRQInfo1) { |
| 785 | p_dev->conf.Attributes |= CONF_ENABLE_IRQ; |
| 786 | } |
| 787 | |
| 788 | /* IO window settings */ |
| 789 | if (cfg->io.nwin != 1) { |
| 790 | lbs_pr_err("wrong CIS (check number of IO windows)\n"); |
| 791 | ret = -ENODEV; |
| 792 | goto out1; |
| 793 | } |
| 794 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| 795 | p_dev->io.BasePort1 = io->win[0].base; |
| 796 | p_dev->io.NumPorts1 = io->win[0].len; |
| 797 | |
| 798 | /* This reserves IO space but doesn't actually enable it */ |
| 799 | ret = pcmcia_request_io(p_dev, &p_dev->io); |
| 800 | if (ret) { |
| 801 | lbs_pr_err("error in pcmcia_request_io\n"); |
| 802 | goto out1; |
| 803 | } |
| 804 | |
| 805 | /* |
| 806 | * Allocate an interrupt line. Note that this does not assign |
| 807 | * a handler to the interrupt, unless the 'Handler' member of |
| 808 | * the irq structure is initialized. |
| 809 | */ |
| 810 | if (p_dev->conf.Attributes & CONF_ENABLE_IRQ) { |
| 811 | ret = pcmcia_request_irq(p_dev, &p_dev->irq); |
| 812 | if (ret) { |
| 813 | lbs_pr_err("error in pcmcia_request_irq\n"); |
| 814 | goto out1; |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | /* Initialize io access */ |
| 819 | card->iobase = ioport_map(p_dev->io.BasePort1, p_dev->io.NumPorts1); |
| 820 | if (!card->iobase) { |
| 821 | lbs_pr_err("error in ioport_map\n"); |
| 822 | ret = -EIO; |
| 823 | goto out1; |
| 824 | } |
| 825 | |
| 826 | /* |
| 827 | * This actually configures the PCMCIA socket -- setting up |
| 828 | * the I/O windows and the interrupt mapping, and putting the |
| 829 | * card and host interface into "Memory and IO" mode. |
| 830 | */ |
| 831 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
| 832 | if (ret) { |
| 833 | lbs_pr_err("error in pcmcia_request_configuration\n"); |
| 834 | goto out2; |
| 835 | } |
| 836 | |
| 837 | /* Finally, report what we've done */ |
| 838 | lbs_deb_cs("irq %d, io 0x%04x-0x%04x\n", |
| 839 | p_dev->irq.AssignedIRQ, p_dev->io.BasePort1, |
| 840 | p_dev->io.BasePort1 + p_dev->io.NumPorts1 - 1); |
| 841 | |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 842 | |
| 843 | /* Load the firmware early, before calling into libertas.ko */ |
| 844 | ret = if_cs_prog_helper(card); |
| 845 | if (ret == 0) |
| 846 | ret = if_cs_prog_real(card); |
| 847 | if (ret) |
| 848 | goto out2; |
| 849 | |
| 850 | /* Make this card known to the libertas driver */ |
Holger Schurig | 1007832 | 2007-11-15 18:05:47 -0500 | [diff] [blame] | 851 | priv = lbs_add_card(card, &p_dev->dev); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 852 | if (!priv) { |
| 853 | ret = -ENOMEM; |
| 854 | goto out2; |
| 855 | } |
| 856 | |
| 857 | /* Store pointers to our call-back functions */ |
Dan Williams | 954ee16 | 2007-08-20 11:43:25 -0400 | [diff] [blame] | 858 | card->priv = priv; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 859 | priv->card = card; |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 860 | priv->hw_host_to_card = if_cs_host_to_card; |
| 861 | priv->hw_get_int_status = if_cs_get_int_status; |
| 862 | priv->hw_read_event_cause = if_cs_read_event_cause; |
| 863 | |
David Woodhouse | aa21c00 | 2007-12-08 20:04:36 +0000 | [diff] [blame] | 864 | priv->fw_ready = 1; |
Dan Williams | 954ee16 | 2007-08-20 11:43:25 -0400 | [diff] [blame] | 865 | |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 866 | /* Now actually get the IRQ */ |
| 867 | ret = request_irq(p_dev->irq.AssignedIRQ, if_cs_interrupt, |
| 868 | IRQF_SHARED, DRV_NAME, card); |
| 869 | if (ret) { |
| 870 | lbs_pr_err("error in request_irq\n"); |
| 871 | goto out3; |
| 872 | } |
| 873 | |
Holger Schurig | 4ef3170 | 2007-10-09 10:41:57 +0200 | [diff] [blame] | 874 | /* Clear any interrupt cause that happend while sending |
| 875 | * firmware/initializing card */ |
| 876 | if_cs_write16(card, IF_CS_C_INT_CAUSE, IF_CS_C_IC_MASK); |
Ryan Mallon | 28de0b3 | 2007-09-06 21:32:42 -0400 | [diff] [blame] | 877 | if_cs_enable_ints(card); |
| 878 | |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 879 | /* And finally bring the card up */ |
Holger Schurig | 1007832 | 2007-11-15 18:05:47 -0500 | [diff] [blame] | 880 | if (lbs_start_card(priv) != 0) { |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 881 | lbs_pr_err("could not activate card\n"); |
| 882 | goto out3; |
| 883 | } |
| 884 | |
Holger Schurig | d4ff0ef | 2008-03-19 14:25:18 +0100 | [diff] [blame^] | 885 | /* The firmware for the CF card supports powersave */ |
| 886 | priv->ps_supported = 1; |
| 887 | |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 888 | ret = 0; |
| 889 | goto out; |
| 890 | |
| 891 | out3: |
Holger Schurig | 1007832 | 2007-11-15 18:05:47 -0500 | [diff] [blame] | 892 | lbs_remove_card(priv); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 893 | out2: |
| 894 | ioport_unmap(card->iobase); |
| 895 | out1: |
| 896 | pcmcia_disable_device(p_dev); |
| 897 | out: |
| 898 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); |
| 899 | return ret; |
| 900 | } |
| 901 | |
| 902 | |
| 903 | /* |
| 904 | * This deletes a driver "instance". The device is de-registered with |
| 905 | * Card Services. If it has been released, all local data structures |
| 906 | * are freed. Otherwise, the structures will be freed when the device |
| 907 | * is released. |
| 908 | */ |
| 909 | static void if_cs_detach(struct pcmcia_device *p_dev) |
| 910 | { |
| 911 | struct if_cs_card *card = p_dev->priv; |
| 912 | |
| 913 | lbs_deb_enter(LBS_DEB_CS); |
| 914 | |
Holger Schurig | 1007832 | 2007-11-15 18:05:47 -0500 | [diff] [blame] | 915 | lbs_stop_card(card->priv); |
| 916 | lbs_remove_card(card->priv); |
Ryan Mallon | 28de0b3 | 2007-09-06 21:32:42 -0400 | [diff] [blame] | 917 | if_cs_disable_ints(card); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 918 | if_cs_release(p_dev); |
| 919 | kfree(card); |
| 920 | |
| 921 | lbs_deb_leave(LBS_DEB_CS); |
| 922 | } |
| 923 | |
| 924 | |
| 925 | |
| 926 | /********************************************************************/ |
| 927 | /* Module initialization */ |
| 928 | /********************************************************************/ |
| 929 | |
| 930 | static struct pcmcia_device_id if_cs_ids[] = { |
| 931 | PCMCIA_DEVICE_MANF_CARD(0x02df, 0x8103), |
| 932 | PCMCIA_DEVICE_NULL, |
| 933 | }; |
| 934 | MODULE_DEVICE_TABLE(pcmcia, if_cs_ids); |
| 935 | |
| 936 | |
Holger Schurig | 1007832 | 2007-11-15 18:05:47 -0500 | [diff] [blame] | 937 | static struct pcmcia_driver lbs_driver = { |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 938 | .owner = THIS_MODULE, |
| 939 | .drv = { |
| 940 | .name = DRV_NAME, |
| 941 | }, |
| 942 | .probe = if_cs_probe, |
| 943 | .remove = if_cs_detach, |
| 944 | .id_table = if_cs_ids, |
| 945 | }; |
| 946 | |
| 947 | |
| 948 | static int __init if_cs_init(void) |
| 949 | { |
| 950 | int ret; |
| 951 | |
| 952 | lbs_deb_enter(LBS_DEB_CS); |
Holger Schurig | 1007832 | 2007-11-15 18:05:47 -0500 | [diff] [blame] | 953 | ret = pcmcia_register_driver(&lbs_driver); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 954 | lbs_deb_leave(LBS_DEB_CS); |
| 955 | return ret; |
| 956 | } |
| 957 | |
| 958 | |
| 959 | static void __exit if_cs_exit(void) |
| 960 | { |
| 961 | lbs_deb_enter(LBS_DEB_CS); |
Holger Schurig | 1007832 | 2007-11-15 18:05:47 -0500 | [diff] [blame] | 962 | pcmcia_unregister_driver(&lbs_driver); |
Holger Schurig | 27590d0 | 2007-10-03 17:25:41 -0700 | [diff] [blame] | 963 | lbs_deb_leave(LBS_DEB_CS); |
| 964 | } |
| 965 | |
| 966 | |
| 967 | module_init(if_cs_init); |
| 968 | module_exit(if_cs_exit); |