Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [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 | */ |
| 16 | |
| 17 | /** |
| 18 | * @file bcmsdh_linux.c |
| 19 | */ |
| 20 | |
| 21 | #define __UNDEF_NO_VERSION__ |
| 22 | |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 23 | #include <linuxver.h> |
| 24 | |
| 25 | #include <linux/pci.h> |
| 26 | #include <linux/completion.h> |
| 27 | |
| 28 | #include <osl.h> |
| 29 | #include <pcicfg.h> |
| 30 | #include <bcmdefs.h> |
| 31 | #include <bcmdevs.h> |
| 32 | |
| 33 | #if defined(OOB_INTR_ONLY) |
| 34 | #include <linux/irq.h> |
| 35 | extern void dhdsdio_isr(void *args); |
| 36 | #include <bcmutils.h> |
| 37 | #include <dngl_stats.h> |
| 38 | #include <dhd.h> |
| 39 | #endif /* defined(OOB_INTR_ONLY) */ |
| 40 | #if defined(CONFIG_MACH_SANDGATE2G) || defined(CONFIG_MACH_LOGICPD_PXA270) |
| 41 | #if !defined(BCMPLATFORM_BUS) |
| 42 | #define BCMPLATFORM_BUS |
| 43 | #endif /* !defined(BCMPLATFORM_BUS) */ |
| 44 | |
| 45 | #include <linux/platform_device.h> |
| 46 | #endif /* CONFIG_MACH_SANDGATE2G */ |
| 47 | |
| 48 | /** |
| 49 | * SDIO Host Controller info |
| 50 | */ |
| 51 | typedef struct bcmsdh_hc bcmsdh_hc_t; |
| 52 | |
| 53 | struct bcmsdh_hc { |
| 54 | bcmsdh_hc_t *next; |
| 55 | #ifdef BCMPLATFORM_BUS |
| 56 | struct device *dev; /* platform device handle */ |
| 57 | #else |
| 58 | struct pci_dev *dev; /* pci device handle */ |
| 59 | #endif /* BCMPLATFORM_BUS */ |
| 60 | osl_t *osh; |
| 61 | void *regs; /* SDIO Host Controller address */ |
| 62 | bcmsdh_info_t *sdh; /* SDIO Host Controller handle */ |
| 63 | void *ch; |
| 64 | unsigned int oob_irq; |
| 65 | unsigned long oob_flags; /* OOB Host specifiction |
| 66 | as edge and etc */ |
| 67 | bool oob_irq_registered; |
| 68 | #if defined(OOB_INTR_ONLY) |
| 69 | spinlock_t irq_lock; |
| 70 | #endif |
| 71 | }; |
Jason Cooper | 5f782de | 2010-10-06 10:08:01 -0400 | [diff] [blame] | 72 | static bcmsdh_hc_t *sdhcinfo; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 73 | |
| 74 | /* driver info, initialized when bcmsdh_register is called */ |
| 75 | static bcmsdh_driver_t drvinfo = { NULL, NULL }; |
| 76 | |
| 77 | /* debugging macros */ |
| 78 | #define SDLX_MSG(x) |
| 79 | |
| 80 | /** |
| 81 | * Checks to see if vendor and device IDs match a supported SDIO Host Controller. |
| 82 | */ |
Greg Kroah-Hartman | 7d4df48 | 2010-10-07 17:04:47 -0700 | [diff] [blame] | 83 | bool bcmsdh_chipmatch(u16 vendor, u16 device) |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 84 | { |
| 85 | /* Add other vendors and devices as required */ |
| 86 | |
| 87 | #ifdef BCMSDIOH_STD |
| 88 | /* Check for Arasan host controller */ |
| 89 | if (vendor == VENDOR_SI_IMAGE) |
Greg Kroah-Hartman | 0f0881b | 2010-10-12 12:15:18 -0700 | [diff] [blame] | 90 | return true; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 91 | |
| 92 | /* Check for BRCM 27XX Standard host controller */ |
| 93 | if (device == BCM27XX_SDIOH_ID && vendor == VENDOR_BROADCOM) |
Greg Kroah-Hartman | 0f0881b | 2010-10-12 12:15:18 -0700 | [diff] [blame] | 94 | return true; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 95 | |
| 96 | /* Check for BRCM Standard host controller */ |
| 97 | if (device == SDIOH_FPGA_ID && vendor == VENDOR_BROADCOM) |
Greg Kroah-Hartman | 0f0881b | 2010-10-12 12:15:18 -0700 | [diff] [blame] | 98 | return true; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 99 | |
| 100 | /* Check for TI PCIxx21 Standard host controller */ |
| 101 | if (device == PCIXX21_SDIOH_ID && vendor == VENDOR_TI) |
Greg Kroah-Hartman | 0f0881b | 2010-10-12 12:15:18 -0700 | [diff] [blame] | 102 | return true; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 103 | |
| 104 | if (device == PCIXX21_SDIOH0_ID && vendor == VENDOR_TI) |
Greg Kroah-Hartman | 0f0881b | 2010-10-12 12:15:18 -0700 | [diff] [blame] | 105 | return true; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 106 | |
| 107 | /* Ricoh R5C822 Standard SDIO Host */ |
| 108 | if (device == R5C822_SDIOH_ID && vendor == VENDOR_RICOH) |
Greg Kroah-Hartman | 0f0881b | 2010-10-12 12:15:18 -0700 | [diff] [blame] | 109 | return true; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 110 | |
| 111 | /* JMicron Standard SDIO Host */ |
| 112 | if (device == JMICRON_SDIOH_ID && vendor == VENDOR_JMICRON) |
Greg Kroah-Hartman | 0f0881b | 2010-10-12 12:15:18 -0700 | [diff] [blame] | 113 | return true; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 114 | #endif /* BCMSDIOH_STD */ |
| 115 | #ifdef BCMSDIOH_SPI |
| 116 | /* This is the PciSpiHost. */ |
| 117 | if (device == SPIH_FPGA_ID && vendor == VENDOR_BROADCOM) { |
| 118 | printf("Found PCI SPI Host Controller\n"); |
Greg Kroah-Hartman | 0f0881b | 2010-10-12 12:15:18 -0700 | [diff] [blame] | 119 | return true; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 120 | } |
| 121 | #endif /* BCMSDIOH_SPI */ |
| 122 | |
Greg Kroah-Hartman | 0965ae8 | 2010-10-12 12:50:15 -0700 | [diff] [blame] | 123 | return false; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | #if defined(BCMPLATFORM_BUS) |
| 127 | #if defined(BCMLXSDMMC) |
| 128 | /* forward declarations */ |
| 129 | int bcmsdh_probe(struct device *dev); |
| 130 | EXPORT_SYMBOL(bcmsdh_probe); |
| 131 | |
| 132 | int bcmsdh_remove(struct device *dev); |
| 133 | EXPORT_SYMBOL(bcmsdh_remove); |
| 134 | |
| 135 | #else |
| 136 | /* forward declarations */ |
| 137 | static int __devinit bcmsdh_probe(struct device *dev); |
| 138 | static int __devexit bcmsdh_remove(struct device *dev); |
| 139 | #endif /* BCMLXSDMMC */ |
| 140 | |
| 141 | #ifndef BCMLXSDMMC |
| 142 | static struct device_driver bcmsdh_driver = { |
| 143 | .name = "pxa2xx-mci", |
| 144 | .bus = &platform_bus_type, |
| 145 | .probe = bcmsdh_probe, |
| 146 | .remove = bcmsdh_remove, |
| 147 | .suspend = NULL, |
| 148 | .resume = NULL, |
| 149 | }; |
| 150 | #endif /* BCMLXSDMMC */ |
| 151 | |
| 152 | #ifndef BCMLXSDMMC |
| 153 | static |
| 154 | #endif /* BCMLXSDMMC */ |
| 155 | int bcmsdh_probe(struct device *dev) |
| 156 | { |
| 157 | osl_t *osh = NULL; |
| 158 | bcmsdh_hc_t *sdhc = NULL; |
Greg Kroah-Hartman | 3deea90 | 2010-10-05 11:15:47 -0700 | [diff] [blame] | 159 | unsigned long regs = 0; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 160 | bcmsdh_info_t *sdh = NULL; |
| 161 | #if !defined(BCMLXSDMMC) && defined(BCMPLATFORM_BUS) |
| 162 | struct platform_device *pdev; |
| 163 | struct resource *r; |
| 164 | #endif /* BCMLXSDMMC */ |
| 165 | int irq = 0; |
Greg Kroah-Hartman | 66cbd3a | 2010-10-08 11:05:47 -0700 | [diff] [blame] | 166 | u32 vendevid; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 167 | unsigned long irq_flags = 0; |
| 168 | |
| 169 | #if !defined(BCMLXSDMMC) && defined(BCMPLATFORM_BUS) |
| 170 | pdev = to_platform_device(dev); |
| 171 | r = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 172 | irq = platform_get_irq(pdev, 0); |
| 173 | if (!r || irq == NO_IRQ) |
| 174 | return -ENXIO; |
| 175 | #endif /* BCMLXSDMMC */ |
| 176 | |
| 177 | #if defined(OOB_INTR_ONLY) |
| 178 | #ifdef HW_OOB |
| 179 | irq_flags = |
| 180 | IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL | |
| 181 | IORESOURCE_IRQ_SHAREABLE; |
| 182 | #else |
| 183 | irq_flags = IRQF_TRIGGER_FALLING; |
| 184 | #endif /* HW_OOB */ |
| 185 | irq = dhd_customer_oob_irq_map(&irq_flags); |
| 186 | if (irq < 0) { |
| 187 | SDLX_MSG(("%s: Host irq is not defined\n", __func__)); |
| 188 | return 1; |
| 189 | } |
| 190 | #endif /* defined(OOB_INTR_ONLY) */ |
| 191 | /* allocate SDIO Host Controller state info */ |
Greg Kroah-Hartman | 0965ae8 | 2010-10-12 12:50:15 -0700 | [diff] [blame] | 192 | osh = osl_attach(dev, PCI_BUS, false); |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 193 | if (!osh) { |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 194 | SDLX_MSG(("%s: osl_attach failed\n", __func__)); |
| 195 | goto err; |
| 196 | } |
mike.rapoport@gmail.com | 5fcc1fc | 2010-10-13 00:09:10 +0200 | [diff] [blame] | 197 | sdhc = kzalloc(sizeof(bcmsdh_hc_t), GFP_ATOMIC); |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 198 | if (!sdhc) { |
mike.rapoport@gmail.com | 97e17d0 | 2010-10-13 00:09:09 +0200 | [diff] [blame] | 199 | SDLX_MSG(("%s: out of memory\n", __func__)); |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 200 | goto err; |
| 201 | } |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 202 | sdhc->osh = osh; |
| 203 | |
| 204 | sdhc->dev = (void *)dev; |
| 205 | |
| 206 | #ifdef BCMLXSDMMC |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 207 | sdh = bcmsdh_attach(osh, (void *)0, (void **)®s, irq); |
| 208 | if (!sdh) { |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 209 | SDLX_MSG(("%s: bcmsdh_attach failed\n", __func__)); |
| 210 | goto err; |
| 211 | } |
| 212 | #else |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 213 | sdh = bcmsdh_attach(osh, (void *)r->start, (void **)®s, irq); |
| 214 | if (!sdh) { |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 215 | SDLX_MSG(("%s: bcmsdh_attach failed\n", __func__)); |
| 216 | goto err; |
| 217 | } |
| 218 | #endif /* BCMLXSDMMC */ |
| 219 | sdhc->sdh = sdh; |
| 220 | sdhc->oob_irq = irq; |
| 221 | sdhc->oob_flags = irq_flags; |
Greg Kroah-Hartman | 0965ae8 | 2010-10-12 12:50:15 -0700 | [diff] [blame] | 222 | sdhc->oob_irq_registered = false; /* to make sure.. */ |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 223 | #if defined(OOB_INTR_ONLY) |
| 224 | spin_lock_init(&sdhc->irq_lock); |
| 225 | #endif |
| 226 | |
| 227 | /* chain SDIO Host Controller info together */ |
| 228 | sdhc->next = sdhcinfo; |
| 229 | sdhcinfo = sdhc; |
| 230 | /* Read the vendor/device ID from the CIS */ |
| 231 | vendevid = bcmsdh_query_device(sdh); |
| 232 | |
| 233 | /* try to attach to the target device */ |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 234 | sdhc->ch = drvinfo.attach((vendevid >> 16), (vendevid & 0xFFFF), |
| 235 | 0, 0, 0, 0, (void *)regs, NULL, sdh); |
| 236 | if (!sdhc->ch) { |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 237 | SDLX_MSG(("%s: device attach failed\n", __func__)); |
| 238 | goto err; |
| 239 | } |
| 240 | |
| 241 | return 0; |
| 242 | |
| 243 | /* error handling */ |
| 244 | err: |
| 245 | if (sdhc) { |
| 246 | if (sdhc->sdh) |
| 247 | bcmsdh_detach(sdhc->osh, sdhc->sdh); |
mike.rapoport@gmail.com | 182acb3 | 2010-10-13 00:09:12 +0200 | [diff] [blame] | 248 | kfree(sdhc); |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 249 | } |
| 250 | if (osh) |
| 251 | osl_detach(osh); |
| 252 | return -ENODEV; |
| 253 | } |
| 254 | |
| 255 | #ifndef BCMLXSDMMC |
| 256 | static |
| 257 | #endif /* BCMLXSDMMC */ |
| 258 | int bcmsdh_remove(struct device *dev) |
| 259 | { |
| 260 | bcmsdh_hc_t *sdhc, *prev; |
| 261 | osl_t *osh; |
| 262 | |
| 263 | sdhc = sdhcinfo; |
| 264 | drvinfo.detach(sdhc->ch); |
| 265 | bcmsdh_detach(sdhc->osh, sdhc->sdh); |
| 266 | /* find the SDIO Host Controller state for this pdev |
| 267 | and take it out from the list */ |
| 268 | for (sdhc = sdhcinfo, prev = NULL; sdhc; sdhc = sdhc->next) { |
| 269 | if (sdhc->dev == (void *)dev) { |
| 270 | if (prev) |
| 271 | prev->next = sdhc->next; |
| 272 | else |
| 273 | sdhcinfo = NULL; |
| 274 | break; |
| 275 | } |
| 276 | prev = sdhc; |
| 277 | } |
| 278 | if (!sdhc) { |
| 279 | SDLX_MSG(("%s: failed\n", __func__)); |
| 280 | return 0; |
| 281 | } |
| 282 | |
| 283 | /* release SDIO Host Controller info */ |
| 284 | osh = sdhc->osh; |
mike.rapoport@gmail.com | 182acb3 | 2010-10-13 00:09:12 +0200 | [diff] [blame] | 285 | kfree(sdhc); |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 286 | osl_detach(osh); |
| 287 | |
| 288 | #if !defined(BCMLXSDMMC) |
| 289 | dev_set_drvdata(dev, NULL); |
| 290 | #endif /* !defined(BCMLXSDMMC) */ |
| 291 | |
| 292 | return 0; |
| 293 | } |
| 294 | |
| 295 | #else /* BCMPLATFORM_BUS */ |
| 296 | |
| 297 | #if !defined(BCMLXSDMMC) |
| 298 | /* forward declarations for PCI probe and remove functions. */ |
| 299 | static int __devinit bcmsdh_pci_probe(struct pci_dev *pdev, |
| 300 | const struct pci_device_id *ent); |
| 301 | static void __devexit bcmsdh_pci_remove(struct pci_dev *pdev); |
| 302 | |
| 303 | /** |
| 304 | * pci id table |
| 305 | */ |
| 306 | static struct pci_device_id bcmsdh_pci_devid[] __devinitdata = { |
| 307 | { |
| 308 | .vendor = PCI_ANY_ID, |
| 309 | .device = PCI_ANY_ID, |
| 310 | .subvendor = PCI_ANY_ID, |
| 311 | .subdevice = PCI_ANY_ID, |
| 312 | .class = 0, |
| 313 | .class_mask = 0, |
| 314 | .driver_data = 0, |
| 315 | }, |
| 316 | {0,} |
| 317 | }; |
| 318 | |
| 319 | MODULE_DEVICE_TABLE(pci, bcmsdh_pci_devid); |
| 320 | |
| 321 | /** |
| 322 | * SDIO Host Controller pci driver info |
| 323 | */ |
| 324 | static struct pci_driver bcmsdh_pci_driver = { |
| 325 | .node = {}, |
| 326 | .name = "bcmsdh", |
| 327 | .id_table = bcmsdh_pci_devid, |
| 328 | .probe = bcmsdh_pci_probe, |
| 329 | .remove = bcmsdh_pci_remove, |
| 330 | .suspend = NULL, |
| 331 | .resume = NULL, |
| 332 | }; |
| 333 | |
| 334 | extern uint sd_pci_slot; /* Force detection to a particular PCI */ |
| 335 | /* slot only . Allows for having multiple */ |
| 336 | /* WL devices at once in a PC */ |
| 337 | /* Only one instance of dhd will be */ |
| 338 | /* usable at a time */ |
| 339 | /* Upper word is bus number, */ |
| 340 | /* lower word is slot number */ |
| 341 | /* Default value of 0xFFFFffff turns this */ |
| 342 | /* off */ |
| 343 | module_param(sd_pci_slot, uint, 0); |
| 344 | |
| 345 | /** |
| 346 | * Detect supported SDIO Host Controller and attach if found. |
| 347 | * |
| 348 | * Determine if the device described by pdev is a supported SDIO Host |
| 349 | * Controller. If so, attach to it and attach to the target device. |
| 350 | */ |
| 351 | static int __devinit |
| 352 | bcmsdh_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
| 353 | { |
| 354 | osl_t *osh = NULL; |
| 355 | bcmsdh_hc_t *sdhc = NULL; |
Greg Kroah-Hartman | 3deea90 | 2010-10-05 11:15:47 -0700 | [diff] [blame] | 356 | unsigned long regs; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 357 | bcmsdh_info_t *sdh = NULL; |
| 358 | int rc; |
| 359 | |
| 360 | if (sd_pci_slot != 0xFFFFffff) { |
| 361 | if (pdev->bus->number != (sd_pci_slot >> 16) || |
| 362 | PCI_SLOT(pdev->devfn) != (sd_pci_slot & 0xffff)) { |
| 363 | SDLX_MSG(("%s: %s: bus %X, slot %X, vend %X, dev %X\n", |
| 364 | __func__, |
| 365 | bcmsdh_chipmatch(pdev->vendor, pdev->device) ? |
| 366 | "Found compatible SDIOHC" : |
| 367 | "Probing unknown device", |
| 368 | pdev->bus->number, PCI_SLOT(pdev->devfn), |
| 369 | pdev->vendor, pdev->device)); |
| 370 | return -ENODEV; |
| 371 | } |
| 372 | SDLX_MSG(("%s: %s: bus %X, slot %X, vendor %X, device %X " |
| 373 | "(good PCI location)\n", __func__, |
| 374 | bcmsdh_chipmatch(pdev->vendor, pdev->device) ? |
| 375 | "Using compatible SDIOHC" : "WARNING, forced use " |
| 376 | "of unkown device", |
| 377 | pdev->bus->number, PCI_SLOT(pdev->devfn), pdev->vendor, |
| 378 | pdev->device)); |
| 379 | } |
| 380 | |
| 381 | if ((pdev->vendor == VENDOR_TI) |
| 382 | && ((pdev->device == PCIXX21_FLASHMEDIA_ID) |
| 383 | || (pdev->device == PCIXX21_FLASHMEDIA0_ID))) { |
Greg Kroah-Hartman | 66cbd3a | 2010-10-08 11:05:47 -0700 | [diff] [blame] | 384 | u32 config_reg; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 385 | |
| 386 | SDLX_MSG(("%s: Disabling TI FlashMedia Controller.\n", |
| 387 | __func__)); |
Greg Kroah-Hartman | 0965ae8 | 2010-10-12 12:50:15 -0700 | [diff] [blame] | 388 | osh = osl_attach(pdev, PCI_BUS, false); |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 389 | if (!osh) { |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 390 | SDLX_MSG(("%s: osl_attach failed\n", __func__)); |
| 391 | goto err; |
| 392 | } |
| 393 | |
| 394 | config_reg = OSL_PCI_READ_CONFIG(osh, 0x4c, 4); |
| 395 | |
| 396 | /* |
| 397 | * Set MMC_SD_DIS bit in FlashMedia Controller. |
| 398 | * Disbling the SD/MMC Controller in the FlashMedia Controller |
| 399 | * allows the Standard SD Host Controller to take over control |
| 400 | * of the SD Slot. |
| 401 | */ |
| 402 | config_reg |= 0x02; |
| 403 | OSL_PCI_WRITE_CONFIG(osh, 0x4c, 4, config_reg); |
| 404 | osl_detach(osh); |
| 405 | } |
| 406 | /* match this pci device with what we support */ |
| 407 | /* we can't solely rely on this to believe it is |
| 408 | our SDIO Host Controller! */ |
| 409 | if (!bcmsdh_chipmatch(pdev->vendor, pdev->device)) |
| 410 | return -ENODEV; |
| 411 | |
| 412 | /* this is a pci device we might support */ |
| 413 | SDLX_MSG(("%s: Found possible SDIO Host Controller: " |
| 414 | "bus %d slot %d func %d irq %d\n", __func__, |
| 415 | pdev->bus->number, PCI_SLOT(pdev->devfn), |
| 416 | PCI_FUNC(pdev->devfn), pdev->irq)); |
| 417 | |
| 418 | /* use bcmsdh_query_device() to get the vendor ID of the target device |
| 419 | * so it will eventually appear in the Broadcom string on the console |
| 420 | */ |
| 421 | |
| 422 | /* allocate SDIO Host Controller state info */ |
Greg Kroah-Hartman | 0965ae8 | 2010-10-12 12:50:15 -0700 | [diff] [blame] | 423 | osh = osl_attach(pdev, PCI_BUS, false); |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 424 | if (!osh) { |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 425 | SDLX_MSG(("%s: osl_attach failed\n", __func__)); |
| 426 | goto err; |
| 427 | } |
mike.rapoport@gmail.com | 5fcc1fc | 2010-10-13 00:09:10 +0200 | [diff] [blame] | 428 | sdhc = kzalloc(sizeof(bcmsdh_hc_t), GFP_ATOMIC); |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 429 | if (!sdhc) { |
mike.rapoport@gmail.com | 97e17d0 | 2010-10-13 00:09:09 +0200 | [diff] [blame] | 430 | SDLX_MSG(("%s: out of memory\n", __func__)); |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 431 | goto err; |
| 432 | } |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 433 | sdhc->osh = osh; |
| 434 | |
| 435 | sdhc->dev = pdev; |
| 436 | |
| 437 | /* map to address where host can access */ |
| 438 | pci_set_master(pdev); |
| 439 | rc = pci_enable_device(pdev); |
| 440 | if (rc) { |
| 441 | SDLX_MSG(("%s: Cannot enable PCI device\n", __func__)); |
| 442 | goto err; |
| 443 | } |
Greg Kroah-Hartman | f024c48 | 2010-10-21 10:50:21 -0700 | [diff] [blame] | 444 | sdh = bcmsdh_attach(osh, (void *)(unsigned long)pci_resource_start(pdev, 0), |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 445 | (void **)®s, pdev->irq); |
| 446 | if (!sdh) { |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 447 | SDLX_MSG(("%s: bcmsdh_attach failed\n", __func__)); |
| 448 | goto err; |
| 449 | } |
| 450 | |
| 451 | sdhc->sdh = sdh; |
| 452 | |
| 453 | /* try to attach to the target device */ |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 454 | sdhc->ch = drvinfo.attach(VENDOR_BROADCOM, /* pdev->vendor, */ |
| 455 | bcmsdh_query_device(sdh) & 0xFFFF, 0, 0, 0, 0, |
| 456 | (void *)regs, NULL, sdh); |
| 457 | if (!sdhc->ch) { |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 458 | SDLX_MSG(("%s: device attach failed\n", __func__)); |
| 459 | goto err; |
| 460 | } |
| 461 | |
| 462 | /* chain SDIO Host Controller info together */ |
| 463 | sdhc->next = sdhcinfo; |
| 464 | sdhcinfo = sdhc; |
| 465 | |
| 466 | return 0; |
| 467 | |
| 468 | /* error handling */ |
| 469 | err: |
| 470 | if (sdhc->sdh) |
| 471 | bcmsdh_detach(sdhc->osh, sdhc->sdh); |
| 472 | if (sdhc) |
mike.rapoport@gmail.com | 182acb3 | 2010-10-13 00:09:12 +0200 | [diff] [blame] | 473 | kfree(sdhc); |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 474 | if (osh) |
| 475 | osl_detach(osh); |
| 476 | return -ENODEV; |
| 477 | } |
| 478 | |
| 479 | /** |
| 480 | * Detach from target devices and SDIO Host Controller |
| 481 | */ |
| 482 | static void __devexit bcmsdh_pci_remove(struct pci_dev *pdev) |
| 483 | { |
| 484 | bcmsdh_hc_t *sdhc, *prev; |
| 485 | osl_t *osh; |
| 486 | |
| 487 | /* find the SDIO Host Controller state for this |
| 488 | pdev and take it out from the list */ |
| 489 | for (sdhc = sdhcinfo, prev = NULL; sdhc; sdhc = sdhc->next) { |
| 490 | if (sdhc->dev == pdev) { |
| 491 | if (prev) |
| 492 | prev->next = sdhc->next; |
| 493 | else |
| 494 | sdhcinfo = NULL; |
| 495 | break; |
| 496 | } |
| 497 | prev = sdhc; |
| 498 | } |
| 499 | if (!sdhc) |
| 500 | return; |
| 501 | |
| 502 | drvinfo.detach(sdhc->ch); |
| 503 | |
| 504 | bcmsdh_detach(sdhc->osh, sdhc->sdh); |
| 505 | |
| 506 | /* release SDIO Host Controller info */ |
| 507 | osh = sdhc->osh; |
mike.rapoport@gmail.com | 182acb3 | 2010-10-13 00:09:12 +0200 | [diff] [blame] | 508 | kfree(sdhc); |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 509 | osl_detach(osh); |
| 510 | } |
| 511 | #endif /* BCMLXSDMMC */ |
| 512 | #endif /* BCMPLATFORM_BUS */ |
| 513 | |
| 514 | extern int sdio_function_init(void); |
| 515 | |
| 516 | int bcmsdh_register(bcmsdh_driver_t *driver) |
| 517 | { |
| 518 | int error = 0; |
| 519 | |
| 520 | drvinfo = *driver; |
| 521 | |
| 522 | #if defined(BCMPLATFORM_BUS) |
| 523 | #if defined(BCMLXSDMMC) |
| 524 | SDLX_MSG(("Linux Kernel SDIO/MMC Driver\n")); |
| 525 | error = sdio_function_init(); |
| 526 | #else |
| 527 | SDLX_MSG(("Intel PXA270 SDIO Driver\n")); |
| 528 | error = driver_register(&bcmsdh_driver); |
| 529 | #endif /* defined(BCMLXSDMMC) */ |
| 530 | return error; |
| 531 | #endif /* defined(BCMPLATFORM_BUS) */ |
| 532 | |
| 533 | #if !defined(BCMPLATFORM_BUS) && !defined(BCMLXSDMMC) |
Jason Cooper | 81e95f9 | 2010-10-06 10:07:59 -0400 | [diff] [blame] | 534 | error = pci_register_driver(&bcmsdh_pci_driver); |
| 535 | if (!error) |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 536 | return 0; |
| 537 | |
Greg Kroah-Hartman | 8ba9cfd | 2010-10-07 16:23:24 -0700 | [diff] [blame] | 538 | SDLX_MSG(("%s: pci_register_driver failed 0x%x\n", __func__, error)); |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 539 | #endif /* BCMPLATFORM_BUS */ |
| 540 | |
| 541 | return error; |
| 542 | } |
| 543 | |
| 544 | extern void sdio_function_cleanup(void); |
| 545 | |
| 546 | void bcmsdh_unregister(void) |
| 547 | { |
| 548 | #if defined(BCMPLATFORM_BUS) && !defined(BCMLXSDMMC) |
| 549 | driver_unregister(&bcmsdh_driver); |
| 550 | #endif |
| 551 | #if defined(BCMLXSDMMC) |
| 552 | sdio_function_cleanup(); |
| 553 | #endif /* BCMLXSDMMC */ |
| 554 | #if !defined(BCMPLATFORM_BUS) && !defined(BCMLXSDMMC) |
| 555 | pci_unregister_driver(&bcmsdh_pci_driver); |
| 556 | #endif /* BCMPLATFORM_BUS */ |
| 557 | } |
| 558 | |
| 559 | #if defined(OOB_INTR_ONLY) |
| 560 | void bcmsdh_oob_intr_set(bool enable) |
| 561 | { |
| 562 | static bool curstate = 1; |
| 563 | unsigned long flags; |
| 564 | |
| 565 | spin_lock_irqsave(&sdhcinfo->irq_lock, flags); |
| 566 | if (curstate != enable) { |
| 567 | if (enable) |
| 568 | enable_irq(sdhcinfo->oob_irq); |
| 569 | else |
| 570 | disable_irq_nosync(sdhcinfo->oob_irq); |
| 571 | curstate = enable; |
| 572 | } |
| 573 | spin_unlock_irqrestore(&sdhcinfo->irq_lock, flags); |
| 574 | } |
| 575 | |
| 576 | static irqreturn_t wlan_oob_irq(int irq, void *dev_id) |
| 577 | { |
| 578 | dhd_pub_t *dhdp; |
| 579 | |
| 580 | dhdp = (dhd_pub_t *) dev_get_drvdata(sdhcinfo->dev); |
| 581 | |
| 582 | bcmsdh_oob_intr_set(0); |
| 583 | |
| 584 | if (dhdp == NULL) { |
| 585 | SDLX_MSG(("Out of band GPIO interrupt fired way too early\n")); |
| 586 | return IRQ_HANDLED; |
| 587 | } |
| 588 | |
| 589 | WAKE_LOCK_TIMEOUT(dhdp, WAKE_LOCK_TMOUT, 25); |
| 590 | |
| 591 | dhdsdio_isr((void *)dhdp->bus); |
| 592 | |
| 593 | return IRQ_HANDLED; |
| 594 | } |
| 595 | |
| 596 | int bcmsdh_register_oob_intr(void *dhdp) |
| 597 | { |
| 598 | int error = 0; |
| 599 | |
| 600 | SDLX_MSG(("%s Enter\n", __func__)); |
| 601 | |
| 602 | sdhcinfo->oob_flags = |
| 603 | IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL | |
| 604 | IORESOURCE_IRQ_SHAREABLE; |
| 605 | dev_set_drvdata(sdhcinfo->dev, dhdp); |
| 606 | |
| 607 | if (!sdhcinfo->oob_irq_registered) { |
| 608 | SDLX_MSG(("%s IRQ=%d Type=%X\n", __func__, |
| 609 | (int)sdhcinfo->oob_irq, (int)sdhcinfo->oob_flags)); |
| 610 | /* Refer to customer Host IRQ docs about |
| 611 | proper irqflags definition */ |
| 612 | error = |
| 613 | request_irq(sdhcinfo->oob_irq, wlan_oob_irq, |
| 614 | sdhcinfo->oob_flags, "bcmsdh_sdmmc", NULL); |
| 615 | if (error) |
| 616 | return -ENODEV; |
| 617 | |
| 618 | set_irq_wake(sdhcinfo->oob_irq, 1); |
Greg Kroah-Hartman | 0f0881b | 2010-10-12 12:15:18 -0700 | [diff] [blame] | 619 | sdhcinfo->oob_irq_registered = true; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 620 | } |
| 621 | |
| 622 | return 0; |
| 623 | } |
| 624 | |
| 625 | void bcmsdh_unregister_oob_intr(void) |
| 626 | { |
| 627 | SDLX_MSG(("%s: Enter\n", __func__)); |
| 628 | |
| 629 | set_irq_wake(sdhcinfo->oob_irq, 0); |
| 630 | disable_irq(sdhcinfo->oob_irq); /* just in case.. */ |
| 631 | free_irq(sdhcinfo->oob_irq, NULL); |
Greg Kroah-Hartman | 0965ae8 | 2010-10-12 12:50:15 -0700 | [diff] [blame] | 632 | sdhcinfo->oob_irq_registered = false; |
Henry Ptasinski | cf2b448 | 2010-09-20 22:33:12 -0700 | [diff] [blame] | 633 | } |
| 634 | #endif /* defined(OOB_INTR_ONLY) */ |
| 635 | /* Module parameters specific to each host-controller driver */ |
| 636 | |
| 637 | extern uint sd_msglevel; /* Debug message level */ |
| 638 | module_param(sd_msglevel, uint, 0); |
| 639 | |
| 640 | extern uint sd_power; /* 0 = SD Power OFF, |
| 641 | 1 = SD Power ON. */ |
| 642 | module_param(sd_power, uint, 0); |
| 643 | |
| 644 | extern uint sd_clock; /* SD Clock Control, 0 = SD Clock OFF, |
| 645 | 1 = SD Clock ON */ |
| 646 | module_param(sd_clock, uint, 0); |
| 647 | |
| 648 | extern uint sd_divisor; /* Divisor (-1 means external clock) */ |
| 649 | module_param(sd_divisor, uint, 0); |
| 650 | |
| 651 | extern uint sd_sdmode; /* Default is SD4, 0=SPI, 1=SD1, 2=SD4 */ |
| 652 | module_param(sd_sdmode, uint, 0); |
| 653 | |
| 654 | extern uint sd_hiok; /* Ok to use hi-speed mode */ |
| 655 | module_param(sd_hiok, uint, 0); |
| 656 | |
| 657 | extern uint sd_f2_blocksize; |
| 658 | module_param(sd_f2_blocksize, int, 0); |