Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2010 Broadcom Corporation |
| 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for any |
| 5 | * purpose with or without fee is hereby granted, provided that the above |
| 6 | * copyright notice and this permission notice appear in all copies. |
| 7 | * |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 15 | */ |
Joe Perches | 02f7719 | 2012-01-15 00:38:44 -0800 | [diff] [blame] | 16 | |
| 17 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 18 | |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 19 | #include <linux/types.h> |
| 20 | #include <linux/netdevice.h> |
| 21 | #include <linux/mmc/sdio.h> |
| 22 | #include <linux/mmc/core.h> |
| 23 | #include <linux/mmc/sdio_func.h> |
| 24 | #include <linux/mmc/sdio_ids.h> |
| 25 | #include <linux/mmc/card.h> |
| 26 | #include <linux/suspend.h> |
| 27 | #include <linux/errno.h> |
| 28 | #include <linux/sched.h> /* request_irq() */ |
Stephen Rothwell | b7a57e7 | 2011-10-12 21:35:07 +0200 | [diff] [blame] | 29 | #include <linux/module.h> |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 30 | #include <net/cfg80211.h> |
| 31 | |
| 32 | #include <defs.h> |
| 33 | #include <brcm_hw_ids.h> |
| 34 | #include <brcmu_utils.h> |
| 35 | #include <brcmu_wifi.h> |
| 36 | #include "sdio_host.h" |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 37 | #include "dhd_dbg.h" |
Franky Lin | a8a363a | 2011-12-16 18:37:13 -0800 | [diff] [blame] | 38 | #include "dhd_bus.h" |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 39 | |
| 40 | #define SDIO_VENDOR_ID_BROADCOM 0x02d0 |
| 41 | |
| 42 | #define DMA_ALIGN_MASK 0x03 |
| 43 | |
| 44 | #define SDIO_DEVICE_ID_BROADCOM_4329 0x4329 |
Franky Lin | ce2d7d7 | 2011-12-08 15:06:39 -0800 | [diff] [blame] | 45 | #define SDIO_DEVICE_ID_BROADCOM_4330 0x4330 |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 46 | |
| 47 | #define SDIO_FUNC1_BLOCKSIZE 64 |
| 48 | #define SDIO_FUNC2_BLOCKSIZE 512 |
| 49 | |
| 50 | /* devices we support, null terminated */ |
| 51 | static const struct sdio_device_id brcmf_sdmmc_ids[] = { |
| 52 | {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)}, |
Franky Lin | ce2d7d7 | 2011-12-08 15:06:39 -0800 | [diff] [blame] | 53 | {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)}, |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 54 | { /* end: all zeroes */ }, |
| 55 | }; |
| 56 | MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids); |
| 57 | |
| 58 | static bool |
| 59 | brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev) |
| 60 | { |
| 61 | bool is_err = false; |
| 62 | #ifdef CONFIG_PM_SLEEP |
| 63 | is_err = atomic_read(&sdiodev->suspend); |
| 64 | #endif |
| 65 | return is_err; |
| 66 | } |
| 67 | |
| 68 | static void |
| 69 | brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev, wait_queue_head_t *wq) |
| 70 | { |
| 71 | #ifdef CONFIG_PM_SLEEP |
| 72 | int retry = 0; |
| 73 | while (atomic_read(&sdiodev->suspend) && retry++ != 30) |
| 74 | wait_event_timeout(*wq, false, HZ/100); |
| 75 | #endif |
| 76 | } |
| 77 | |
| 78 | static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev, |
| 79 | uint regaddr, u8 *byte) |
| 80 | { |
| 81 | struct sdio_func *sdfunc = sdiodev->func[0]; |
| 82 | int err_ret; |
| 83 | |
| 84 | /* |
| 85 | * Can only directly write to some F0 registers. |
| 86 | * Handle F2 enable/disable and Abort command |
| 87 | * as a special case. |
| 88 | */ |
| 89 | if (regaddr == SDIO_CCCR_IOEx) { |
| 90 | sdfunc = sdiodev->func[2]; |
| 91 | if (sdfunc) { |
| 92 | sdio_claim_host(sdfunc); |
| 93 | if (*byte & SDIO_FUNC_ENABLE_2) { |
| 94 | /* Enable Function 2 */ |
| 95 | err_ret = sdio_enable_func(sdfunc); |
| 96 | if (err_ret) |
| 97 | brcmf_dbg(ERROR, |
| 98 | "enable F2 failed:%d\n", |
| 99 | err_ret); |
| 100 | } else { |
| 101 | /* Disable Function 2 */ |
| 102 | err_ret = sdio_disable_func(sdfunc); |
| 103 | if (err_ret) |
| 104 | brcmf_dbg(ERROR, |
| 105 | "Disable F2 failed:%d\n", |
| 106 | err_ret); |
| 107 | } |
| 108 | sdio_release_host(sdfunc); |
| 109 | } |
| 110 | } else if (regaddr == SDIO_CCCR_ABORT) { |
Franky Lin | 1cc2699 | 2012-04-23 14:24:52 -0700 | [diff] [blame] | 111 | sdfunc = kmemdup(sdiodev->func[0], sizeof(struct sdio_func), |
| 112 | GFP_KERNEL); |
| 113 | if (!sdfunc) |
| 114 | return -ENOMEM; |
| 115 | sdfunc->num = 0; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 116 | sdio_claim_host(sdfunc); |
| 117 | sdio_writeb(sdfunc, *byte, regaddr, &err_ret); |
| 118 | sdio_release_host(sdfunc); |
Franky Lin | 1cc2699 | 2012-04-23 14:24:52 -0700 | [diff] [blame] | 119 | kfree(sdfunc); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 120 | } else if (regaddr < 0xF0) { |
| 121 | brcmf_dbg(ERROR, "F0 Wr:0x%02x: write disallowed\n", regaddr); |
| 122 | err_ret = -EPERM; |
| 123 | } else { |
| 124 | sdio_claim_host(sdfunc); |
| 125 | sdio_f0_writeb(sdfunc, *byte, regaddr, &err_ret); |
| 126 | sdio_release_host(sdfunc); |
| 127 | } |
| 128 | |
| 129 | return err_ret; |
| 130 | } |
| 131 | |
| 132 | int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func, |
| 133 | uint regaddr, u8 *byte) |
| 134 | { |
| 135 | int err_ret; |
| 136 | |
| 137 | brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr); |
| 138 | |
| 139 | brcmf_pm_resume_wait(sdiodev, &sdiodev->request_byte_wait); |
| 140 | if (brcmf_pm_resume_error(sdiodev)) |
| 141 | return -EIO; |
| 142 | |
| 143 | if (rw && func == 0) { |
| 144 | /* handle F0 separately */ |
| 145 | err_ret = brcmf_sdioh_f0_write_byte(sdiodev, regaddr, byte); |
| 146 | } else { |
| 147 | sdio_claim_host(sdiodev->func[func]); |
| 148 | if (rw) /* CMD52 Write */ |
| 149 | sdio_writeb(sdiodev->func[func], *byte, regaddr, |
| 150 | &err_ret); |
| 151 | else if (func == 0) { |
| 152 | *byte = sdio_f0_readb(sdiodev->func[func], regaddr, |
| 153 | &err_ret); |
| 154 | } else { |
| 155 | *byte = sdio_readb(sdiodev->func[func], regaddr, |
| 156 | &err_ret); |
| 157 | } |
| 158 | sdio_release_host(sdiodev->func[func]); |
| 159 | } |
| 160 | |
| 161 | if (err_ret) |
| 162 | brcmf_dbg(ERROR, "Failed to %s byte F%d:@0x%05x=%02x, Err: %d\n", |
| 163 | rw ? "write" : "read", func, regaddr, *byte, err_ret); |
| 164 | |
| 165 | return err_ret; |
| 166 | } |
| 167 | |
| 168 | int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev, |
| 169 | uint rw, uint func, uint addr, u32 *word, |
| 170 | uint nbytes) |
| 171 | { |
| 172 | int err_ret = -EIO; |
| 173 | |
| 174 | if (func == 0) { |
| 175 | brcmf_dbg(ERROR, "Only CMD52 allowed to F0\n"); |
| 176 | return -EINVAL; |
| 177 | } |
| 178 | |
| 179 | brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n", |
| 180 | rw, func, addr, nbytes); |
| 181 | |
| 182 | brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait); |
| 183 | if (brcmf_pm_resume_error(sdiodev)) |
| 184 | return -EIO; |
| 185 | /* Claim host controller */ |
| 186 | sdio_claim_host(sdiodev->func[func]); |
| 187 | |
| 188 | if (rw) { /* CMD52 Write */ |
| 189 | if (nbytes == 4) |
| 190 | sdio_writel(sdiodev->func[func], *word, addr, |
| 191 | &err_ret); |
| 192 | else if (nbytes == 2) |
| 193 | sdio_writew(sdiodev->func[func], (*word & 0xFFFF), |
| 194 | addr, &err_ret); |
| 195 | else |
| 196 | brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes); |
| 197 | } else { /* CMD52 Read */ |
| 198 | if (nbytes == 4) |
| 199 | *word = sdio_readl(sdiodev->func[func], addr, &err_ret); |
| 200 | else if (nbytes == 2) |
| 201 | *word = sdio_readw(sdiodev->func[func], addr, |
| 202 | &err_ret) & 0xFFFF; |
| 203 | else |
| 204 | brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes); |
| 205 | } |
| 206 | |
| 207 | /* Release host controller */ |
| 208 | sdio_release_host(sdiodev->func[func]); |
| 209 | |
| 210 | if (err_ret) |
| 211 | brcmf_dbg(ERROR, "Failed to %s word, Err: 0x%08x\n", |
| 212 | rw ? "write" : "read", err_ret); |
| 213 | |
| 214 | return err_ret; |
| 215 | } |
| 216 | |
Arend van Spriel | 5adfeb6 | 2011-11-22 17:21:38 -0800 | [diff] [blame] | 217 | /* precondition: host controller is claimed */ |
| 218 | static int |
| 219 | brcmf_sdioh_request_data(struct brcmf_sdio_dev *sdiodev, uint write, bool fifo, |
| 220 | uint func, uint addr, struct sk_buff *pkt, uint pktlen) |
| 221 | { |
| 222 | int err_ret = 0; |
| 223 | |
| 224 | if ((write) && (!fifo)) { |
| 225 | err_ret = sdio_memcpy_toio(sdiodev->func[func], addr, |
| 226 | ((u8 *) (pkt->data)), pktlen); |
| 227 | } else if (write) { |
| 228 | err_ret = sdio_memcpy_toio(sdiodev->func[func], addr, |
| 229 | ((u8 *) (pkt->data)), pktlen); |
| 230 | } else if (fifo) { |
| 231 | err_ret = sdio_readsb(sdiodev->func[func], |
| 232 | ((u8 *) (pkt->data)), addr, pktlen); |
| 233 | } else { |
| 234 | err_ret = sdio_memcpy_fromio(sdiodev->func[func], |
| 235 | ((u8 *) (pkt->data)), |
| 236 | addr, pktlen); |
| 237 | } |
| 238 | |
| 239 | return err_ret; |
| 240 | } |
| 241 | |
Arend van Spriel | a52dd17 | 2011-11-22 17:21:45 -0800 | [diff] [blame] | 242 | /* |
| 243 | * This function takes a queue of packets. The packets on the queue |
| 244 | * are assumed to be properly aligned by the caller. |
| 245 | */ |
Arend van Spriel | 5adfeb6 | 2011-11-22 17:21:38 -0800 | [diff] [blame] | 246 | int |
| 247 | brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc, |
| 248 | uint write, uint func, uint addr, |
| 249 | struct sk_buff_head *pktq) |
| 250 | { |
| 251 | bool fifo = (fix_inc == SDIOH_DATA_FIX); |
| 252 | u32 SGCount = 0; |
| 253 | int err_ret = 0; |
| 254 | |
| 255 | struct sk_buff *pkt; |
| 256 | |
| 257 | brcmf_dbg(TRACE, "Enter\n"); |
| 258 | |
Arend van Spriel | a52dd17 | 2011-11-22 17:21:45 -0800 | [diff] [blame] | 259 | brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait); |
Arend van Spriel | 5adfeb6 | 2011-11-22 17:21:38 -0800 | [diff] [blame] | 260 | if (brcmf_pm_resume_error(sdiodev)) |
| 261 | return -EIO; |
| 262 | |
| 263 | /* Claim host controller */ |
| 264 | sdio_claim_host(sdiodev->func[func]); |
| 265 | |
| 266 | skb_queue_walk(pktq, pkt) { |
| 267 | uint pkt_len = pkt->len; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 268 | pkt_len += 3; |
| 269 | pkt_len &= 0xFFFFFFFC; |
| 270 | |
Arend van Spriel | 5adfeb6 | 2011-11-22 17:21:38 -0800 | [diff] [blame] | 271 | err_ret = brcmf_sdioh_request_data(sdiodev, write, fifo, func, |
| 272 | addr, pkt, pkt_len); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 273 | if (err_ret) { |
| 274 | brcmf_dbg(ERROR, "%s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=0x%08x\n", |
Arend van Spriel | 5adfeb6 | 2011-11-22 17:21:38 -0800 | [diff] [blame] | 275 | write ? "TX" : "RX", pkt, SGCount, addr, |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 276 | pkt_len, err_ret); |
| 277 | } else { |
| 278 | brcmf_dbg(TRACE, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n", |
Arend van Spriel | 5adfeb6 | 2011-11-22 17:21:38 -0800 | [diff] [blame] | 279 | write ? "TX" : "RX", pkt, SGCount, addr, |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 280 | pkt_len); |
| 281 | } |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 282 | if (!fifo) |
| 283 | addr += pkt_len; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 284 | |
Arend van Spriel | 5adfeb6 | 2011-11-22 17:21:38 -0800 | [diff] [blame] | 285 | SGCount++; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 286 | } |
| 287 | |
| 288 | /* Release host controller */ |
| 289 | sdio_release_host(sdiodev->func[func]); |
| 290 | |
| 291 | brcmf_dbg(TRACE, "Exit\n"); |
| 292 | return err_ret; |
| 293 | } |
| 294 | |
| 295 | /* |
Arend van Spriel | 8054321 | 2011-11-22 17:21:44 -0800 | [diff] [blame] | 296 | * This function takes a single DMA-able packet. |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 297 | */ |
| 298 | int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev, |
| 299 | uint fix_inc, uint write, uint func, uint addr, |
Arend van Spriel | 4c6e869 | 2011-11-22 17:21:40 -0800 | [diff] [blame] | 300 | struct sk_buff *pkt) |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 301 | { |
Arend van Spriel | 4c6e869 | 2011-11-22 17:21:40 -0800 | [diff] [blame] | 302 | int status; |
Arend van Spriel | 2315992 | 2012-02-09 21:09:00 +0100 | [diff] [blame] | 303 | uint pkt_len; |
Arend van Spriel | 8054321 | 2011-11-22 17:21:44 -0800 | [diff] [blame] | 304 | bool fifo = (fix_inc == SDIOH_DATA_FIX); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 305 | |
| 306 | brcmf_dbg(TRACE, "Enter\n"); |
| 307 | |
Arend van Spriel | 4c6e869 | 2011-11-22 17:21:40 -0800 | [diff] [blame] | 308 | if (pkt == NULL) |
| 309 | return -EINVAL; |
Arend van Spriel | 2315992 | 2012-02-09 21:09:00 +0100 | [diff] [blame] | 310 | pkt_len = pkt->len; |
Arend van Spriel | 4c6e869 | 2011-11-22 17:21:40 -0800 | [diff] [blame] | 311 | |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 312 | brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait); |
| 313 | if (brcmf_pm_resume_error(sdiodev)) |
| 314 | return -EIO; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 315 | |
Arend van Spriel | 8054321 | 2011-11-22 17:21:44 -0800 | [diff] [blame] | 316 | /* Claim host controller */ |
| 317 | sdio_claim_host(sdiodev->func[func]); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 318 | |
Arend van Spriel | 8054321 | 2011-11-22 17:21:44 -0800 | [diff] [blame] | 319 | pkt_len += 3; |
| 320 | pkt_len &= (uint)~3; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 321 | |
Arend van Spriel | 8054321 | 2011-11-22 17:21:44 -0800 | [diff] [blame] | 322 | status = brcmf_sdioh_request_data(sdiodev, write, fifo, func, |
| 323 | addr, pkt, pkt_len); |
| 324 | if (status) { |
| 325 | brcmf_dbg(ERROR, "%s FAILED %p, addr=0x%05x, pkt_len=%d, ERR=0x%08x\n", |
| 326 | write ? "TX" : "RX", pkt, addr, pkt_len, status); |
| 327 | } else { |
| 328 | brcmf_dbg(TRACE, "%s xfr'd %p, addr=0x%05x, len=%d\n", |
| 329 | write ? "TX" : "RX", pkt, addr, pkt_len); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 330 | } |
| 331 | |
Arend van Spriel | 8054321 | 2011-11-22 17:21:44 -0800 | [diff] [blame] | 332 | /* Release host controller */ |
| 333 | sdio_release_host(sdiodev->func[func]); |
| 334 | |
Arend van Spriel | 4c6e869 | 2011-11-22 17:21:40 -0800 | [diff] [blame] | 335 | return status; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 336 | } |
| 337 | |
| 338 | /* Read client card reg */ |
| 339 | static int |
| 340 | brcmf_sdioh_card_regread(struct brcmf_sdio_dev *sdiodev, int func, u32 regaddr, |
| 341 | int regsize, u32 *data) |
| 342 | { |
| 343 | |
| 344 | if ((func == 0) || (regsize == 1)) { |
| 345 | u8 temp = 0; |
| 346 | |
| 347 | brcmf_sdioh_request_byte(sdiodev, SDIOH_READ, func, regaddr, |
| 348 | &temp); |
| 349 | *data = temp; |
| 350 | *data &= 0xff; |
| 351 | brcmf_dbg(DATA, "byte read data=0x%02x\n", *data); |
| 352 | } else { |
| 353 | brcmf_sdioh_request_word(sdiodev, SDIOH_READ, func, regaddr, |
| 354 | data, regsize); |
| 355 | if (regsize == 2) |
| 356 | *data &= 0xffff; |
| 357 | |
| 358 | brcmf_dbg(DATA, "word read data=0x%08x\n", *data); |
| 359 | } |
| 360 | |
| 361 | return SUCCESS; |
| 362 | } |
| 363 | |
| 364 | static int brcmf_sdioh_get_cisaddr(struct brcmf_sdio_dev *sdiodev, u32 regaddr) |
| 365 | { |
| 366 | /* read 24 bits and return valid 17 bit addr */ |
| 367 | int i; |
| 368 | u32 scratch, regdata; |
| 369 | __le32 scratch_le; |
| 370 | u8 *ptr = (u8 *)&scratch_le; |
| 371 | |
| 372 | for (i = 0; i < 3; i++) { |
| 373 | if ((brcmf_sdioh_card_regread(sdiodev, 0, regaddr, 1, |
| 374 | ®data)) != SUCCESS) |
| 375 | brcmf_dbg(ERROR, "Can't read!\n"); |
| 376 | |
| 377 | *ptr++ = (u8) regdata; |
| 378 | regaddr++; |
| 379 | } |
| 380 | |
| 381 | /* Only the lower 17-bits are valid */ |
| 382 | scratch = le32_to_cpu(scratch_le); |
| 383 | scratch &= 0x0001FFFF; |
| 384 | return scratch; |
| 385 | } |
| 386 | |
| 387 | static int brcmf_sdioh_enablefuncs(struct brcmf_sdio_dev *sdiodev) |
| 388 | { |
| 389 | int err_ret; |
| 390 | u32 fbraddr; |
| 391 | u8 func; |
| 392 | |
| 393 | brcmf_dbg(TRACE, "\n"); |
| 394 | |
| 395 | /* Get the Card's common CIS address */ |
| 396 | sdiodev->func_cis_ptr[0] = brcmf_sdioh_get_cisaddr(sdiodev, |
| 397 | SDIO_CCCR_CIS); |
| 398 | brcmf_dbg(INFO, "Card's Common CIS Ptr = 0x%x\n", |
| 399 | sdiodev->func_cis_ptr[0]); |
| 400 | |
| 401 | /* Get the Card's function CIS (for each function) */ |
| 402 | for (fbraddr = SDIO_FBR_BASE(1), func = 1; |
| 403 | func <= sdiodev->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) { |
| 404 | sdiodev->func_cis_ptr[func] = |
| 405 | brcmf_sdioh_get_cisaddr(sdiodev, SDIO_FBR_CIS + fbraddr); |
| 406 | brcmf_dbg(INFO, "Function %d CIS Ptr = 0x%x\n", |
| 407 | func, sdiodev->func_cis_ptr[func]); |
| 408 | } |
| 409 | |
| 410 | /* Enable Function 1 */ |
| 411 | sdio_claim_host(sdiodev->func[1]); |
| 412 | err_ret = sdio_enable_func(sdiodev->func[1]); |
| 413 | sdio_release_host(sdiodev->func[1]); |
| 414 | if (err_ret) |
| 415 | brcmf_dbg(ERROR, "Failed to enable F1 Err: 0x%08x\n", err_ret); |
| 416 | |
| 417 | return false; |
| 418 | } |
| 419 | |
| 420 | /* |
| 421 | * Public entry points & extern's |
| 422 | */ |
| 423 | int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev) |
| 424 | { |
| 425 | int err_ret = 0; |
| 426 | |
| 427 | brcmf_dbg(TRACE, "\n"); |
| 428 | |
| 429 | sdiodev->num_funcs = 2; |
| 430 | |
| 431 | sdio_claim_host(sdiodev->func[1]); |
| 432 | err_ret = sdio_set_block_size(sdiodev->func[1], SDIO_FUNC1_BLOCKSIZE); |
| 433 | sdio_release_host(sdiodev->func[1]); |
| 434 | if (err_ret) { |
| 435 | brcmf_dbg(ERROR, "Failed to set F1 blocksize\n"); |
| 436 | goto out; |
| 437 | } |
| 438 | |
| 439 | sdio_claim_host(sdiodev->func[2]); |
| 440 | err_ret = sdio_set_block_size(sdiodev->func[2], SDIO_FUNC2_BLOCKSIZE); |
| 441 | sdio_release_host(sdiodev->func[2]); |
| 442 | if (err_ret) { |
| 443 | brcmf_dbg(ERROR, "Failed to set F2 blocksize\n"); |
| 444 | goto out; |
| 445 | } |
| 446 | |
| 447 | brcmf_sdioh_enablefuncs(sdiodev); |
| 448 | |
| 449 | out: |
| 450 | brcmf_dbg(TRACE, "Done\n"); |
| 451 | return err_ret; |
| 452 | } |
| 453 | |
| 454 | void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev) |
| 455 | { |
| 456 | brcmf_dbg(TRACE, "\n"); |
| 457 | |
| 458 | /* Disable Function 2 */ |
| 459 | sdio_claim_host(sdiodev->func[2]); |
| 460 | sdio_disable_func(sdiodev->func[2]); |
| 461 | sdio_release_host(sdiodev->func[2]); |
| 462 | |
| 463 | /* Disable Function 1 */ |
| 464 | sdio_claim_host(sdiodev->func[1]); |
| 465 | sdio_disable_func(sdiodev->func[1]); |
| 466 | sdio_release_host(sdiodev->func[1]); |
| 467 | |
| 468 | } |
| 469 | |
| 470 | static int brcmf_ops_sdio_probe(struct sdio_func *func, |
| 471 | const struct sdio_device_id *id) |
| 472 | { |
| 473 | int ret = 0; |
| 474 | struct brcmf_sdio_dev *sdiodev; |
Franky Lin | 655713b | 2011-11-22 17:21:51 -0800 | [diff] [blame] | 475 | struct brcmf_bus *bus_if; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 476 | brcmf_dbg(TRACE, "Enter\n"); |
| 477 | brcmf_dbg(TRACE, "func->class=%x\n", func->class); |
| 478 | brcmf_dbg(TRACE, "sdio_vendor: 0x%04x\n", func->vendor); |
| 479 | brcmf_dbg(TRACE, "sdio_device: 0x%04x\n", func->device); |
| 480 | brcmf_dbg(TRACE, "Function#: 0x%04x\n", func->num); |
| 481 | |
| 482 | if (func->num == 1) { |
| 483 | if (dev_get_drvdata(&func->card->dev)) { |
| 484 | brcmf_dbg(ERROR, "card private drvdata occupied\n"); |
| 485 | return -ENXIO; |
| 486 | } |
Franky Lin | 655713b | 2011-11-22 17:21:51 -0800 | [diff] [blame] | 487 | bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL); |
| 488 | if (!bus_if) |
| 489 | return -ENOMEM; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 490 | sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL); |
Dan Carpenter | ad9547c | 2011-11-30 11:49:38 +0300 | [diff] [blame] | 491 | if (!sdiodev) { |
| 492 | kfree(bus_if); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 493 | return -ENOMEM; |
Dan Carpenter | ad9547c | 2011-11-30 11:49:38 +0300 | [diff] [blame] | 494 | } |
Franky Lin | 1cc2699 | 2012-04-23 14:24:52 -0700 | [diff] [blame] | 495 | sdiodev->func[0] = func; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 496 | sdiodev->func[1] = func; |
Franky Lin | d76d1c8 | 2011-12-08 15:06:37 -0800 | [diff] [blame] | 497 | sdiodev->bus_if = bus_if; |
Arend van Spriel | 0a332e4 | 2012-02-09 21:09:02 +0100 | [diff] [blame] | 498 | bus_if->bus_priv.sdio = sdiodev; |
Franky Lin | 655713b | 2011-11-22 17:21:51 -0800 | [diff] [blame] | 499 | bus_if->type = SDIO_BUS; |
Franky Lin | 6e3c712 | 2011-12-16 18:37:11 -0800 | [diff] [blame] | 500 | bus_if->align = BRCMF_SDALIGN; |
Franky Lin | d76d1c8 | 2011-12-08 15:06:37 -0800 | [diff] [blame] | 501 | dev_set_drvdata(&func->card->dev, sdiodev); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 502 | |
| 503 | atomic_set(&sdiodev->suspend, false); |
| 504 | init_waitqueue_head(&sdiodev->request_byte_wait); |
| 505 | init_waitqueue_head(&sdiodev->request_word_wait); |
Arend van Spriel | a52dd17 | 2011-11-22 17:21:45 -0800 | [diff] [blame] | 506 | init_waitqueue_head(&sdiodev->request_chain_wait); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 507 | init_waitqueue_head(&sdiodev->request_buffer_wait); |
| 508 | } |
| 509 | |
| 510 | if (func->num == 2) { |
Franky Lin | d76d1c8 | 2011-12-08 15:06:37 -0800 | [diff] [blame] | 511 | sdiodev = dev_get_drvdata(&func->card->dev); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 512 | if ((!sdiodev) || (sdiodev->func[1]->card != func->card)) |
| 513 | return -ENODEV; |
| 514 | sdiodev->func[2] = func; |
| 515 | |
Franky Lin | d76d1c8 | 2011-12-08 15:06:37 -0800 | [diff] [blame] | 516 | bus_if = sdiodev->bus_if; |
| 517 | sdiodev->dev = &func->dev; |
| 518 | dev_set_drvdata(&func->dev, bus_if); |
| 519 | |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 520 | brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_probe...\n"); |
| 521 | ret = brcmf_sdio_probe(sdiodev); |
| 522 | } |
| 523 | |
| 524 | return ret; |
| 525 | } |
| 526 | |
| 527 | static void brcmf_ops_sdio_remove(struct sdio_func *func) |
| 528 | { |
Franky Lin | 655713b | 2011-11-22 17:21:51 -0800 | [diff] [blame] | 529 | struct brcmf_bus *bus_if; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 530 | struct brcmf_sdio_dev *sdiodev; |
| 531 | brcmf_dbg(TRACE, "Enter\n"); |
| 532 | brcmf_dbg(INFO, "func->class=%x\n", func->class); |
| 533 | brcmf_dbg(INFO, "sdio_vendor: 0x%04x\n", func->vendor); |
| 534 | brcmf_dbg(INFO, "sdio_device: 0x%04x\n", func->device); |
| 535 | brcmf_dbg(INFO, "Function#: 0x%04x\n", func->num); |
| 536 | |
| 537 | if (func->num == 2) { |
Franky Lin | d76d1c8 | 2011-12-08 15:06:37 -0800 | [diff] [blame] | 538 | bus_if = dev_get_drvdata(&func->dev); |
Arend van Spriel | 0a332e4 | 2012-02-09 21:09:02 +0100 | [diff] [blame] | 539 | sdiodev = bus_if->bus_priv.sdio; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 540 | brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_remove...\n"); |
| 541 | brcmf_sdio_remove(sdiodev); |
| 542 | dev_set_drvdata(&func->card->dev, NULL); |
Franky Lin | d76d1c8 | 2011-12-08 15:06:37 -0800 | [diff] [blame] | 543 | dev_set_drvdata(&func->dev, NULL); |
Franky Lin | 655713b | 2011-11-22 17:21:51 -0800 | [diff] [blame] | 544 | kfree(bus_if); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 545 | kfree(sdiodev); |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | #ifdef CONFIG_PM_SLEEP |
| 550 | static int brcmf_sdio_suspend(struct device *dev) |
| 551 | { |
| 552 | mmc_pm_flag_t sdio_flags; |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 553 | struct sdio_func *func = dev_to_sdio_func(dev); |
Franky Lin | d76d1c8 | 2011-12-08 15:06:37 -0800 | [diff] [blame] | 554 | struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 555 | int ret = 0; |
| 556 | |
| 557 | brcmf_dbg(TRACE, "\n"); |
| 558 | |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 559 | atomic_set(&sdiodev->suspend, true); |
| 560 | |
| 561 | sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]); |
| 562 | if (!(sdio_flags & MMC_PM_KEEP_POWER)) { |
| 563 | brcmf_dbg(ERROR, "Host can't keep power while suspended\n"); |
| 564 | return -EINVAL; |
| 565 | } |
| 566 | |
| 567 | ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER); |
| 568 | if (ret) { |
| 569 | brcmf_dbg(ERROR, "Failed to set pm_flags\n"); |
| 570 | return ret; |
| 571 | } |
| 572 | |
| 573 | brcmf_sdio_wdtmr_enable(sdiodev, false); |
| 574 | |
| 575 | return ret; |
| 576 | } |
| 577 | |
| 578 | static int brcmf_sdio_resume(struct device *dev) |
| 579 | { |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 580 | struct sdio_func *func = dev_to_sdio_func(dev); |
Franky Lin | d76d1c8 | 2011-12-08 15:06:37 -0800 | [diff] [blame] | 581 | struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev); |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 582 | |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 583 | brcmf_sdio_wdtmr_enable(sdiodev, true); |
| 584 | atomic_set(&sdiodev->suspend, false); |
| 585 | return 0; |
| 586 | } |
| 587 | |
| 588 | static const struct dev_pm_ops brcmf_sdio_pm_ops = { |
| 589 | .suspend = brcmf_sdio_suspend, |
| 590 | .resume = brcmf_sdio_resume, |
| 591 | }; |
| 592 | #endif /* CONFIG_PM_SLEEP */ |
| 593 | |
| 594 | static struct sdio_driver brcmf_sdmmc_driver = { |
| 595 | .probe = brcmf_ops_sdio_probe, |
| 596 | .remove = brcmf_ops_sdio_remove, |
| 597 | .name = "brcmfmac", |
| 598 | .id_table = brcmf_sdmmc_ids, |
| 599 | #ifdef CONFIG_PM_SLEEP |
| 600 | .drv = { |
| 601 | .pm = &brcmf_sdio_pm_ops, |
| 602 | }, |
| 603 | #endif /* CONFIG_PM_SLEEP */ |
| 604 | }; |
| 605 | |
Arend van Spriel | f3d7cdc | 2012-02-09 21:09:03 +0100 | [diff] [blame] | 606 | void brcmf_sdio_exit(void) |
Arend van Spriel | 5b435de | 2011-10-05 13:19:03 +0200 | [diff] [blame] | 607 | { |
| 608 | brcmf_dbg(TRACE, "Enter\n"); |
| 609 | |
| 610 | sdio_unregister_driver(&brcmf_sdmmc_driver); |
| 611 | } |
Franky Lin | 3392c88 | 2011-11-22 17:21:47 -0800 | [diff] [blame] | 612 | |
Arend van Spriel | 549040a | 2012-03-02 22:55:48 +0100 | [diff] [blame] | 613 | void brcmf_sdio_init(void) |
Franky Lin | 3392c88 | 2011-11-22 17:21:47 -0800 | [diff] [blame] | 614 | { |
| 615 | int ret; |
| 616 | |
| 617 | brcmf_dbg(TRACE, "Enter\n"); |
| 618 | |
| 619 | ret = sdio_register_driver(&brcmf_sdmmc_driver); |
| 620 | |
| 621 | if (ret) |
| 622 | brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret); |
Franky Lin | 3392c88 | 2011-11-22 17:21:47 -0800 | [diff] [blame] | 623 | } |