Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 1 | /* |
| 2 | * at91_cf.c -- AT91 CompactFlash controller driver |
| 3 | * |
| 4 | * Copyright (C) 2005 David Brownell |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/sched.h> |
| 15 | #include <linux/platform_device.h> |
| 16 | #include <linux/errno.h> |
| 17 | #include <linux/init.h> |
| 18 | #include <linux/interrupt.h> |
| 19 | |
| 20 | #include <pcmcia/ss.h> |
| 21 | |
| 22 | #include <asm/hardware.h> |
| 23 | #include <asm/io.h> |
| 24 | #include <asm/sizes.h> |
| 25 | |
| 26 | #include <asm/arch/at91rm9200.h> |
| 27 | #include <asm/arch/board.h> |
| 28 | #include <asm/arch/gpio.h> |
| 29 | |
| 30 | |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 31 | /* |
| 32 | * A0..A10 work in each range; A23 indicates I/O space; A25 is CFRNW; |
| 33 | * some other bit in {A24,A22..A11} is nREG to flag memory access |
| 34 | * (vs attributes). So more than 2KB/region would just be waste. |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 35 | * Note: These are offsets from the physical base address. |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 36 | */ |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 37 | #define CF_ATTR_PHYS (0) |
| 38 | #define CF_IO_PHYS (1 << 23) |
| 39 | #define CF_MEM_PHYS (0x017ff800) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 40 | |
| 41 | /*--------------------------------------------------------------------------*/ |
| 42 | |
| 43 | static const char driver_name[] = "at91_cf"; |
| 44 | |
| 45 | struct at91_cf_socket { |
| 46 | struct pcmcia_socket socket; |
| 47 | |
| 48 | unsigned present:1; |
| 49 | |
| 50 | struct platform_device *pdev; |
| 51 | struct at91_cf_data *board; |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 52 | |
| 53 | unsigned long phys_baseaddr; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 54 | }; |
| 55 | |
| 56 | #define SZ_2K (2 * SZ_1K) |
| 57 | |
| 58 | static inline int at91_cf_present(struct at91_cf_socket *cf) |
| 59 | { |
| 60 | return !at91_get_gpio_value(cf->board->det_pin); |
| 61 | } |
| 62 | |
| 63 | /*--------------------------------------------------------------------------*/ |
| 64 | |
| 65 | static int at91_cf_ss_init(struct pcmcia_socket *s) |
| 66 | { |
| 67 | return 0; |
| 68 | } |
| 69 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 70 | static irqreturn_t at91_cf_irq(int irq, void *_cf) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 71 | { |
Jeff Garzik | c7bec5a | 2006-10-06 15:00:58 -0400 | [diff] [blame] | 72 | struct at91_cf_socket *cf = _cf; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 73 | |
| 74 | if (irq == cf->board->det_pin) { |
| 75 | unsigned present = at91_cf_present(cf); |
| 76 | |
| 77 | /* kick pccard as needed */ |
| 78 | if (present != cf->present) { |
| 79 | cf->present = present; |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 80 | pr_debug("%s: card %s\n", driver_name, |
| 81 | present ? "present" : "gone"); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 82 | pcmcia_parse_events(&cf->socket, SS_DETECT); |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | return IRQ_HANDLED; |
| 87 | } |
| 88 | |
| 89 | static int at91_cf_get_status(struct pcmcia_socket *s, u_int *sp) |
| 90 | { |
| 91 | struct at91_cf_socket *cf; |
| 92 | |
| 93 | if (!sp) |
| 94 | return -EINVAL; |
| 95 | |
| 96 | cf = container_of(s, struct at91_cf_socket, socket); |
| 97 | |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 98 | /* NOTE: CF is always 3VCARD */ |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 99 | if (at91_cf_present(cf)) { |
| 100 | int rdy = cf->board->irq_pin; /* RDY/nIRQ */ |
| 101 | int vcc = cf->board->vcc_pin; |
| 102 | |
| 103 | *sp = SS_DETECT | SS_3VCARD; |
| 104 | if (!rdy || at91_get_gpio_value(rdy)) |
| 105 | *sp |= SS_READY; |
| 106 | if (!vcc || at91_get_gpio_value(vcc)) |
| 107 | *sp |= SS_POWERON; |
| 108 | } else |
| 109 | *sp = 0; |
| 110 | |
| 111 | return 0; |
| 112 | } |
| 113 | |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 114 | static int |
| 115 | at91_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 116 | { |
| 117 | struct at91_cf_socket *cf; |
| 118 | |
| 119 | cf = container_of(sock, struct at91_cf_socket, socket); |
| 120 | |
| 121 | /* switch Vcc if needed and possible */ |
| 122 | if (cf->board->vcc_pin) { |
| 123 | switch (s->Vcc) { |
| 124 | case 0: |
| 125 | at91_set_gpio_value(cf->board->vcc_pin, 0); |
| 126 | break; |
| 127 | case 33: |
| 128 | at91_set_gpio_value(cf->board->vcc_pin, 1); |
| 129 | break; |
| 130 | default: |
| 131 | return -EINVAL; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | /* toggle reset if needed */ |
| 136 | at91_set_gpio_value(cf->board->rst_pin, s->flags & SS_RESET); |
| 137 | |
| 138 | pr_debug("%s: Vcc %d, io_irq %d, flags %04x csc %04x\n", |
| 139 | driver_name, s->Vcc, s->io_irq, s->flags, s->csc_mask); |
| 140 | |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | static int at91_cf_ss_suspend(struct pcmcia_socket *s) |
| 145 | { |
| 146 | return at91_cf_set_socket(s, &dead_socket); |
| 147 | } |
| 148 | |
| 149 | /* we already mapped the I/O region */ |
| 150 | static int at91_cf_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io) |
| 151 | { |
| 152 | struct at91_cf_socket *cf; |
| 153 | u32 csr; |
| 154 | |
| 155 | cf = container_of(s, struct at91_cf_socket, socket); |
| 156 | io->flags &= (MAP_ACTIVE | MAP_16BIT | MAP_AUTOSZ); |
| 157 | |
| 158 | /* |
| 159 | * Use 16 bit accesses unless/until we need 8-bit i/o space. |
| 160 | * Always set CSR4 ... PCMCIA won't always unmap things. |
| 161 | */ |
| 162 | csr = at91_sys_read(AT91_SMC_CSR(4)) & ~AT91_SMC_DBW; |
| 163 | |
| 164 | /* |
| 165 | * NOTE: this CF controller ignores IOIS16, so we can't really do |
| 166 | * MAP_AUTOSZ. The 16bit mode allows single byte access on either |
| 167 | * D0-D7 (even addr) or D8-D15 (odd), so it's close enough for many |
| 168 | * purposes (and handles ide-cs). |
| 169 | * |
| 170 | * The 8bit mode is needed for odd byte access on D0-D7. It seems |
| 171 | * some cards only like that way to get at the odd byte, despite |
| 172 | * CF 3.0 spec table 35 also giving the D8-D15 option. |
| 173 | */ |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 174 | if (!(io->flags & (MAP_16BIT | MAP_AUTOSZ))) { |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 175 | csr |= AT91_SMC_DBW_8; |
| 176 | pr_debug("%s: 8bit i/o bus\n", driver_name); |
| 177 | } else { |
| 178 | csr |= AT91_SMC_DBW_16; |
| 179 | pr_debug("%s: 16bit i/o bus\n", driver_name); |
| 180 | } |
| 181 | at91_sys_write(AT91_SMC_CSR(4), csr); |
| 182 | |
| 183 | io->start = cf->socket.io_offset; |
| 184 | io->stop = io->start + SZ_2K - 1; |
| 185 | |
| 186 | return 0; |
| 187 | } |
| 188 | |
| 189 | /* pcmcia layer maps/unmaps mem regions */ |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 190 | static int |
| 191 | at91_cf_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *map) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 192 | { |
| 193 | struct at91_cf_socket *cf; |
| 194 | |
| 195 | if (map->card_start) |
| 196 | return -EINVAL; |
| 197 | |
| 198 | cf = container_of(s, struct at91_cf_socket, socket); |
| 199 | |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 200 | map->flags &= (MAP_ACTIVE | MAP_ATTRIB | MAP_16BIT); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 201 | if (map->flags & MAP_ATTRIB) |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 202 | map->static_start = cf->phys_baseaddr + CF_ATTR_PHYS; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 203 | else |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 204 | map->static_start = cf->phys_baseaddr + CF_MEM_PHYS; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 205 | |
| 206 | return 0; |
| 207 | } |
| 208 | |
| 209 | static struct pccard_operations at91_cf_ops = { |
| 210 | .init = at91_cf_ss_init, |
| 211 | .suspend = at91_cf_ss_suspend, |
| 212 | .get_status = at91_cf_get_status, |
| 213 | .set_socket = at91_cf_set_socket, |
| 214 | .set_io_map = at91_cf_set_io_map, |
| 215 | .set_mem_map = at91_cf_set_mem_map, |
| 216 | }; |
| 217 | |
| 218 | /*--------------------------------------------------------------------------*/ |
| 219 | |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 220 | static int __init at91_cf_probe(struct platform_device *pdev) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 221 | { |
| 222 | struct at91_cf_socket *cf; |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 223 | struct at91_cf_data *board = pdev->dev.platform_data; |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 224 | struct resource *io; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 225 | unsigned int csa; |
| 226 | int status; |
| 227 | |
| 228 | if (!board || !board->det_pin || !board->rst_pin) |
| 229 | return -ENODEV; |
| 230 | |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 231 | io = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 232 | if (!io) |
| 233 | return -ENODEV; |
| 234 | |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 235 | cf = kcalloc(1, sizeof *cf, GFP_KERNEL); |
| 236 | if (!cf) |
| 237 | return -ENOMEM; |
| 238 | |
| 239 | cf->board = board; |
| 240 | cf->pdev = pdev; |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 241 | cf->phys_baseaddr = io->start; |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 242 | platform_set_drvdata(pdev, cf); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 243 | |
| 244 | /* CF takes over CS4, CS5, CS6 */ |
| 245 | csa = at91_sys_read(AT91_EBI_CSA); |
| 246 | at91_sys_write(AT91_EBI_CSA, csa | AT91_EBI_CS4A_SMC_COMPACTFLASH); |
| 247 | |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 248 | /* nWAIT is _not_ a default setting */ |
| 249 | (void) at91_set_A_periph(AT91_PIN_PC6, 1); /* nWAIT */ |
| 250 | |
| 251 | /* |
| 252 | * Static memory controller timing adjustments. |
| 253 | * REVISIT: these timings are in terms of MCK cycles, so |
| 254 | * when MCK changes (cpufreq etc) so must these values... |
| 255 | */ |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 256 | at91_sys_write(AT91_SMC_CSR(4), |
| 257 | AT91_SMC_ACSS_STD |
| 258 | | AT91_SMC_DBW_16 |
| 259 | | AT91_SMC_BAT |
| 260 | | AT91_SMC_WSEN |
| 261 | | AT91_SMC_NWS_(32) /* wait states */ |
| 262 | | AT91_SMC_RWSETUP_(6) /* setup time */ |
| 263 | | AT91_SMC_RWHOLD_(4) /* hold time */ |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 264 | ); |
| 265 | |
| 266 | /* must be a GPIO; ergo must trigger on both edges */ |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 267 | status = request_irq(board->det_pin, at91_cf_irq, 0, driver_name, cf); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 268 | if (status < 0) |
| 269 | goto fail0; |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 270 | device_init_wakeup(&pdev->dev, 1); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 271 | |
| 272 | /* |
| 273 | * The card driver will request this irq later as needed. |
| 274 | * but it causes lots of "irqNN: nobody cared" messages |
| 275 | * unless we report that we handle everything (sigh). |
| 276 | * (Note: DK board doesn't wire the IRQ pin...) |
| 277 | */ |
| 278 | if (board->irq_pin) { |
| 279 | status = request_irq(board->irq_pin, at91_cf_irq, |
Thomas Gleixner | dace145 | 2006-07-01 19:29:38 -0700 | [diff] [blame] | 280 | IRQF_SHARED, driver_name, cf); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 281 | if (status < 0) |
| 282 | goto fail0a; |
| 283 | cf->socket.pci_irq = board->irq_pin; |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 284 | } else |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 285 | cf->socket.pci_irq = NR_IRQS + 1; |
| 286 | |
| 287 | /* pcmcia layer only remaps "real" memory not iospace */ |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 288 | cf->socket.io_offset = (unsigned long) ioremap(cf->phys_baseaddr + CF_IO_PHYS, SZ_2K); |
| 289 | if (!cf->socket.io_offset) { |
| 290 | status = -ENXIO; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 291 | goto fail1; |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 292 | } |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 293 | |
| 294 | /* reserve CS4, CS5, and CS6 regions; but use just CS4 */ |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 295 | if (!request_mem_region(io->start, io->end + 1 - io->start, |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 296 | driver_name)) { |
| 297 | status = -ENXIO; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 298 | goto fail1; |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 299 | } |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 300 | |
| 301 | pr_info("%s: irqs det #%d, io #%d\n", driver_name, |
| 302 | board->det_pin, board->irq_pin); |
| 303 | |
| 304 | cf->socket.owner = THIS_MODULE; |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 305 | cf->socket.dev.dev = &pdev->dev; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 306 | cf->socket.ops = &at91_cf_ops; |
| 307 | cf->socket.resource_ops = &pccard_static_ops; |
| 308 | cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP |
| 309 | | SS_CAP_MEM_ALIGN; |
| 310 | cf->socket.map_size = SZ_2K; |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 311 | cf->socket.io[0].res = io; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 312 | |
| 313 | status = pcmcia_register_socket(&cf->socket); |
| 314 | if (status < 0) |
| 315 | goto fail2; |
| 316 | |
| 317 | return 0; |
| 318 | |
| 319 | fail2: |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 320 | release_mem_region(io->start, io->end + 1 - io->start); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 321 | fail1: |
Amol Lad | 3efa997 | 2006-10-20 14:44:18 -0700 | [diff] [blame] | 322 | if (cf->socket.io_offset) |
| 323 | iounmap((void __iomem *) cf->socket.io_offset); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 324 | if (board->irq_pin) |
| 325 | free_irq(board->irq_pin, cf); |
| 326 | fail0a: |
David Brownell | 1fbece1 | 2006-07-01 13:39:55 -0700 | [diff] [blame] | 327 | device_init_wakeup(&pdev->dev, 0); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 328 | free_irq(board->det_pin, cf); |
| 329 | fail0: |
| 330 | at91_sys_write(AT91_EBI_CSA, csa); |
| 331 | kfree(cf); |
| 332 | return status; |
| 333 | } |
| 334 | |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 335 | static int __exit at91_cf_remove(struct platform_device *pdev) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 336 | { |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 337 | struct at91_cf_socket *cf = platform_get_drvdata(pdev); |
| 338 | struct at91_cf_data *board = cf->board; |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 339 | struct resource *io = cf->socket.io[0].res; |
| 340 | unsigned int csa; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 341 | |
| 342 | pcmcia_unregister_socket(&cf->socket); |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 343 | if (board->irq_pin) |
| 344 | free_irq(board->irq_pin, cf); |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 345 | device_init_wakeup(&pdev->dev, 0); |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 346 | free_irq(board->det_pin, cf); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 347 | iounmap((void __iomem *) cf->socket.io_offset); |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 348 | release_mem_region(io->start, io->end + 1 - io->start); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 349 | |
| 350 | csa = at91_sys_read(AT91_EBI_CSA); |
| 351 | at91_sys_write(AT91_EBI_CSA, csa & ~AT91_EBI_CS4A); |
| 352 | |
| 353 | kfree(cf); |
| 354 | return 0; |
| 355 | } |
| 356 | |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 357 | #ifdef CONFIG_PM |
| 358 | |
| 359 | static int at91_cf_suspend(struct platform_device *pdev, pm_message_t mesg) |
| 360 | { |
| 361 | struct at91_cf_socket *cf = platform_get_drvdata(pdev); |
| 362 | struct at91_cf_data *board = cf->board; |
| 363 | |
| 364 | pcmcia_socket_dev_suspend(&pdev->dev, mesg); |
David Brownell | 1fbece1 | 2006-07-01 13:39:55 -0700 | [diff] [blame] | 365 | if (device_may_wakeup(&pdev->dev)) { |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 366 | enable_irq_wake(board->det_pin); |
David Brownell | 1fbece1 | 2006-07-01 13:39:55 -0700 | [diff] [blame] | 367 | if (board->irq_pin) |
| 368 | enable_irq_wake(board->irq_pin); |
| 369 | } else { |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 370 | disable_irq_wake(board->det_pin); |
David Brownell | 1fbece1 | 2006-07-01 13:39:55 -0700 | [diff] [blame] | 371 | if (board->irq_pin) |
| 372 | disable_irq_wake(board->irq_pin); |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 373 | } |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 374 | return 0; |
| 375 | } |
| 376 | |
| 377 | static int at91_cf_resume(struct platform_device *pdev) |
| 378 | { |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 379 | pcmcia_socket_dev_resume(&pdev->dev); |
| 380 | return 0; |
| 381 | } |
| 382 | |
| 383 | #else |
| 384 | #define at91_cf_suspend NULL |
| 385 | #define at91_cf_resume NULL |
| 386 | #endif |
| 387 | |
| 388 | static struct platform_driver at91_cf_driver = { |
| 389 | .driver = { |
| 390 | .name = (char *) driver_name, |
| 391 | .owner = THIS_MODULE, |
| 392 | }, |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 393 | .probe = at91_cf_probe, |
| 394 | .remove = __exit_p(at91_cf_remove), |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 395 | .suspend = at91_cf_suspend, |
| 396 | .resume = at91_cf_resume, |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 397 | }; |
| 398 | |
| 399 | /*--------------------------------------------------------------------------*/ |
| 400 | |
| 401 | static int __init at91_cf_init(void) |
| 402 | { |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 403 | return platform_driver_register(&at91_cf_driver); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 404 | } |
| 405 | module_init(at91_cf_init); |
| 406 | |
| 407 | static void __exit at91_cf_exit(void) |
| 408 | { |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 409 | platform_driver_unregister(&at91_cf_driver); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 410 | } |
| 411 | module_exit(at91_cf_exit); |
| 412 | |
| 413 | MODULE_DESCRIPTION("AT91 Compact Flash Driver"); |
| 414 | MODULE_AUTHOR("David Brownell"); |
| 415 | MODULE_LICENSE("GPL"); |