Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 1 | /* |
| 2 | * tifm_7xx1.c - TI FlashMedia driver |
| 3 | * |
| 4 | * Copyright (C) 2006 Alex Dubov <oakad@yahoo.com> |
| 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 version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #include <linux/tifm.h> |
| 13 | #include <linux/dma-mapping.h> |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 14 | #include <linux/freezer.h> |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 15 | |
| 16 | #define DRIVER_NAME "tifm_7xx1" |
Alex Dubov | 4552f0c | 2007-04-12 16:59:12 +1000 | [diff] [blame] | 17 | #define DRIVER_VERSION "0.8" |
| 18 | |
| 19 | #define TIFM_IRQ_ENABLE 0x80000000 |
| 20 | #define TIFM_IRQ_SOCKMASK(x) (x) |
| 21 | #define TIFM_IRQ_CARDMASK(x) ((x) << 8) |
| 22 | #define TIFM_IRQ_FIFOMASK(x) ((x) << 16) |
| 23 | #define TIFM_IRQ_SETALL 0xffffffff |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 24 | |
| 25 | static void tifm_7xx1_eject(struct tifm_adapter *fm, struct tifm_dev *sock) |
| 26 | { |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 27 | unsigned long flags; |
| 28 | |
| 29 | spin_lock_irqsave(&fm->lock, flags); |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 30 | fm->socket_change_set |= 1 << sock->socket_id; |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 31 | tifm_queue_work(&fm->media_switcher); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 32 | spin_unlock_irqrestore(&fm->lock, flags); |
| 33 | } |
| 34 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 35 | static irqreturn_t tifm_7xx1_isr(int irq, void *dev_id) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 36 | { |
| 37 | struct tifm_adapter *fm = dev_id; |
Alex Dubov | 217334d | 2006-12-11 01:55:31 +1100 | [diff] [blame] | 38 | struct tifm_dev *sock; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 39 | unsigned int irq_status; |
Alex Dubov | 4552f0c | 2007-04-12 16:59:12 +1000 | [diff] [blame] | 40 | unsigned int cnt; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 41 | |
| 42 | spin_lock(&fm->lock); |
| 43 | irq_status = readl(fm->addr + FM_INTERRUPT_STATUS); |
| 44 | if (irq_status == 0 || irq_status == (~0)) { |
| 45 | spin_unlock(&fm->lock); |
| 46 | return IRQ_NONE; |
| 47 | } |
| 48 | |
| 49 | if (irq_status & TIFM_IRQ_ENABLE) { |
| 50 | writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
| 51 | |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 52 | for (cnt = 0; cnt < fm->num_sockets; cnt++) { |
Alex Dubov | 217334d | 2006-12-11 01:55:31 +1100 | [diff] [blame] | 53 | sock = fm->sockets[cnt]; |
Alex Dubov | 4552f0c | 2007-04-12 16:59:12 +1000 | [diff] [blame] | 54 | if (sock) { |
| 55 | if ((irq_status >> cnt) & TIFM_IRQ_FIFOMASK(1)) |
| 56 | sock->data_event(sock); |
| 57 | if ((irq_status >> cnt) & TIFM_IRQ_CARDMASK(1)) |
| 58 | sock->card_event(sock); |
| 59 | } |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 60 | } |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 61 | |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 62 | fm->socket_change_set |= irq_status |
| 63 | & ((1 << fm->num_sockets) - 1); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 64 | } |
| 65 | writel(irq_status, fm->addr + FM_INTERRUPT_STATUS); |
| 66 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 67 | if (fm->finish_me) |
| 68 | complete_all(fm->finish_me); |
| 69 | else if (!fm->socket_change_set) |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 70 | writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 71 | else |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 72 | tifm_queue_work(&fm->media_switcher); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 73 | |
| 74 | spin_unlock(&fm->lock); |
| 75 | return IRQ_HANDLED; |
| 76 | } |
| 77 | |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 78 | static unsigned char tifm_7xx1_toggle_sock_power(char __iomem *sock_addr, |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 79 | int is_x2) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 80 | { |
| 81 | unsigned int s_state; |
| 82 | int cnt; |
| 83 | |
| 84 | writel(0x0e00, sock_addr + SOCK_CONTROL); |
| 85 | |
| 86 | for (cnt = 0; cnt < 100; cnt++) { |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 87 | if (!(TIFM_SOCK_STATE_POWERED |
| 88 | & readl(sock_addr + SOCK_PRESENT_STATE))) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 89 | break; |
| 90 | msleep(10); |
| 91 | } |
| 92 | |
| 93 | s_state = readl(sock_addr + SOCK_PRESENT_STATE); |
| 94 | if (!(TIFM_SOCK_STATE_OCCUPIED & s_state)) |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 95 | return 0; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 96 | |
| 97 | if (is_x2) { |
| 98 | writel((s_state & 7) | 0x0c00, sock_addr + SOCK_CONTROL); |
| 99 | } else { |
| 100 | // SmartMedia cards need extra 40 msec |
| 101 | if (((readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7) == 1) |
| 102 | msleep(40); |
| 103 | writel(readl(sock_addr + SOCK_CONTROL) | TIFM_CTRL_LED, |
| 104 | sock_addr + SOCK_CONTROL); |
| 105 | msleep(10); |
| 106 | writel((s_state & 0x7) | 0x0c00 | TIFM_CTRL_LED, |
| 107 | sock_addr + SOCK_CONTROL); |
| 108 | } |
| 109 | |
| 110 | for (cnt = 0; cnt < 100; cnt++) { |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 111 | if ((TIFM_SOCK_STATE_POWERED |
| 112 | & readl(sock_addr + SOCK_PRESENT_STATE))) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 113 | break; |
| 114 | msleep(10); |
| 115 | } |
| 116 | |
| 117 | if (!is_x2) |
| 118 | writel(readl(sock_addr + SOCK_CONTROL) & (~TIFM_CTRL_LED), |
| 119 | sock_addr + SOCK_CONTROL); |
| 120 | |
| 121 | return (readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7; |
| 122 | } |
| 123 | |
Al Viro | e069d79 | 2006-10-09 20:29:43 +0100 | [diff] [blame] | 124 | inline static char __iomem * |
| 125 | tifm_7xx1_sock_addr(char __iomem *base_addr, unsigned int sock_num) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 126 | { |
| 127 | return base_addr + ((sock_num + 1) << 10); |
| 128 | } |
| 129 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 130 | static void tifm_7xx1_switch_media(struct work_struct *work) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 131 | { |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 132 | struct tifm_adapter *fm = container_of(work, struct tifm_adapter, |
| 133 | media_switcher); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 134 | unsigned long flags; |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 135 | unsigned char media_id; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 136 | char *card_name = "xx"; |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 137 | int cnt; |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 138 | struct tifm_dev *sock; |
| 139 | unsigned int socket_change_set; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 140 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 141 | spin_lock_irqsave(&fm->lock, flags); |
| 142 | socket_change_set = fm->socket_change_set; |
| 143 | fm->socket_change_set = 0; |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 144 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 145 | dev_dbg(fm->dev, "checking media set %x\n", |
| 146 | socket_change_set); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 147 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 148 | if (!socket_change_set) { |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 149 | spin_unlock_irqrestore(&fm->lock, flags); |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 150 | return; |
| 151 | } |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 152 | |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 153 | for (cnt = 0; cnt < fm->num_sockets; cnt++) { |
| 154 | if (!(socket_change_set & (1 << cnt))) |
| 155 | continue; |
| 156 | sock = fm->sockets[cnt]; |
| 157 | if (sock) { |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 158 | printk(KERN_INFO DRIVER_NAME |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 159 | ": demand removing card from socket %d\n", |
| 160 | cnt); |
| 161 | fm->sockets[cnt] = NULL; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 162 | spin_unlock_irqrestore(&fm->lock, flags); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 163 | device_unregister(&sock->dev); |
| 164 | spin_lock_irqsave(&fm->lock, flags); |
| 165 | writel(0x0e00, |
| 166 | tifm_7xx1_sock_addr(fm->addr, cnt) |
| 167 | + SOCK_CONTROL); |
| 168 | } |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 169 | |
| 170 | spin_unlock_irqrestore(&fm->lock, flags); |
| 171 | media_id = tifm_7xx1_toggle_sock_power( |
| 172 | tifm_7xx1_sock_addr(fm->addr, cnt), |
| 173 | fm->num_sockets == 2); |
| 174 | if (media_id) { |
| 175 | sock = tifm_alloc_device(fm); |
| 176 | if (sock) { |
| 177 | sock->addr = tifm_7xx1_sock_addr(fm->addr, |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 178 | cnt); |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 179 | sock->type = media_id; |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 180 | sock->socket_id = cnt; |
| 181 | switch (media_id) { |
| 182 | case 1: |
| 183 | card_name = "xd"; |
| 184 | break; |
| 185 | case 2: |
| 186 | card_name = "ms"; |
| 187 | break; |
| 188 | case 3: |
| 189 | card_name = "sd"; |
| 190 | break; |
| 191 | default: |
| 192 | tifm_free_device(&sock->dev); |
| 193 | spin_lock_irqsave(&fm->lock, flags); |
| 194 | continue; |
| 195 | } |
| 196 | snprintf(sock->dev.bus_id, BUS_ID_SIZE, |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 197 | "tifm_%s%u:%u", card_name, |
| 198 | fm->id, cnt); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 199 | printk(KERN_INFO DRIVER_NAME |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 200 | ": %s card detected in socket %d\n", |
| 201 | card_name, cnt); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 202 | if (!device_register(&sock->dev)) { |
| 203 | spin_lock_irqsave(&fm->lock, flags); |
| 204 | if (!fm->sockets[cnt]) { |
| 205 | fm->sockets[cnt] = sock; |
| 206 | sock = NULL; |
| 207 | } |
| 208 | spin_unlock_irqrestore(&fm->lock, flags); |
| 209 | } |
| 210 | if (sock) |
| 211 | tifm_free_device(&sock->dev); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 212 | } |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 213 | spin_lock_irqsave(&fm->lock, flags); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 214 | } |
| 215 | } |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 216 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 217 | writel(TIFM_IRQ_FIFOMASK(socket_change_set) |
| 218 | | TIFM_IRQ_CARDMASK(socket_change_set), |
| 219 | fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
| 220 | |
| 221 | writel(TIFM_IRQ_FIFOMASK(socket_change_set) |
| 222 | | TIFM_IRQ_CARDMASK(socket_change_set), |
| 223 | fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 224 | |
| 225 | writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 226 | spin_unlock_irqrestore(&fm->lock, flags); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 227 | } |
| 228 | |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 229 | #ifdef CONFIG_PM |
| 230 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 231 | static int tifm_7xx1_suspend(struct pci_dev *dev, pm_message_t state) |
| 232 | { |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 233 | dev_dbg(&dev->dev, "suspending host\n"); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 234 | |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 235 | pci_save_state(dev); |
| 236 | pci_enable_wake(dev, pci_choose_state(dev, state), 0); |
| 237 | pci_disable_device(dev); |
| 238 | pci_set_power_state(dev, pci_choose_state(dev, state)); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 239 | return 0; |
| 240 | } |
| 241 | |
| 242 | static int tifm_7xx1_resume(struct pci_dev *dev) |
| 243 | { |
| 244 | struct tifm_adapter *fm = pci_get_drvdata(dev); |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 245 | int cnt, rc; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 246 | unsigned long flags; |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 247 | unsigned char new_ids[fm->num_sockets]; |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 248 | DECLARE_COMPLETION_ONSTACK(finish_resume); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 249 | |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 250 | pci_set_power_state(dev, PCI_D0); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 251 | pci_restore_state(dev); |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 252 | rc = pci_enable_device(dev); |
| 253 | if (rc) |
| 254 | return rc; |
| 255 | pci_set_master(dev); |
| 256 | |
| 257 | dev_dbg(&dev->dev, "resuming host\n"); |
| 258 | |
| 259 | for (cnt = 0; cnt < fm->num_sockets; cnt++) |
| 260 | new_ids[cnt] = tifm_7xx1_toggle_sock_power( |
| 261 | tifm_7xx1_sock_addr(fm->addr, cnt), |
| 262 | fm->num_sockets == 2); |
| 263 | spin_lock_irqsave(&fm->lock, flags); |
| 264 | fm->socket_change_set = 0; |
| 265 | for (cnt = 0; cnt < fm->num_sockets; cnt++) { |
| 266 | if (fm->sockets[cnt]) { |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 267 | if (fm->sockets[cnt]->type == new_ids[cnt]) |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 268 | fm->socket_change_set |= 1 << cnt; |
| 269 | |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 270 | fm->sockets[cnt]->type = new_ids[cnt]; |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 271 | } |
| 272 | } |
| 273 | |
| 274 | writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1), |
| 275 | fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 276 | if (!fm->socket_change_set) { |
| 277 | spin_unlock_irqrestore(&fm->lock, flags); |
| 278 | return 0; |
| 279 | } else { |
| 280 | fm->socket_change_set = 0; |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 281 | fm->finish_me = &finish_resume; |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 282 | spin_unlock_irqrestore(&fm->lock, flags); |
| 283 | } |
| 284 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 285 | wait_for_completion_timeout(&finish_resume, HZ); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 286 | |
| 287 | spin_lock_irqsave(&fm->lock, flags); |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 288 | fm->finish_me = NULL; |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 289 | writel(TIFM_IRQ_FIFOMASK(fm->socket_change_set) |
| 290 | | TIFM_IRQ_CARDMASK(fm->socket_change_set), |
| 291 | fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
| 292 | writel(TIFM_IRQ_FIFOMASK(fm->socket_change_set) |
| 293 | | TIFM_IRQ_CARDMASK(fm->socket_change_set), |
| 294 | fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 295 | writel(TIFM_IRQ_ENABLE, |
| 296 | fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 297 | fm->socket_change_set = 0; |
| 298 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 299 | spin_unlock_irqrestore(&fm->lock, flags); |
| 300 | return 0; |
| 301 | } |
| 302 | |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 303 | #else |
| 304 | |
| 305 | #define tifm_7xx1_suspend NULL |
| 306 | #define tifm_7xx1_resume NULL |
| 307 | |
| 308 | #endif /* CONFIG_PM */ |
| 309 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 310 | static int tifm_7xx1_probe(struct pci_dev *dev, |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 311 | const struct pci_device_id *dev_id) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 312 | { |
| 313 | struct tifm_adapter *fm; |
| 314 | int pci_dev_busy = 0; |
| 315 | int rc; |
| 316 | |
| 317 | rc = pci_set_dma_mask(dev, DMA_32BIT_MASK); |
| 318 | if (rc) |
| 319 | return rc; |
| 320 | |
| 321 | rc = pci_enable_device(dev); |
| 322 | if (rc) |
| 323 | return rc; |
| 324 | |
| 325 | pci_set_master(dev); |
| 326 | |
| 327 | rc = pci_request_regions(dev, DRIVER_NAME); |
| 328 | if (rc) { |
| 329 | pci_dev_busy = 1; |
| 330 | goto err_out; |
| 331 | } |
| 332 | |
| 333 | pci_intx(dev, 1); |
| 334 | |
| 335 | fm = tifm_alloc_adapter(); |
| 336 | if (!fm) { |
| 337 | rc = -ENOMEM; |
| 338 | goto err_out_int; |
| 339 | } |
| 340 | |
| 341 | fm->dev = &dev->dev; |
Alex Dubov | b5ad676 | 2006-12-11 01:55:35 +1100 | [diff] [blame] | 342 | fm->num_sockets = (dev->device == PCI_DEVICE_ID_TI_XX21_XX11_FM) |
| 343 | ? 4 : 2; |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 344 | fm->sockets = kzalloc(sizeof(struct tifm_dev*) * fm->num_sockets, |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 345 | GFP_KERNEL); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 346 | if (!fm->sockets) |
| 347 | goto err_out_free; |
| 348 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 349 | INIT_WORK(&fm->media_switcher, tifm_7xx1_switch_media); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 350 | fm->eject = tifm_7xx1_eject; |
| 351 | pci_set_drvdata(dev, fm); |
| 352 | |
| 353 | fm->addr = ioremap(pci_resource_start(dev, 0), |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 354 | pci_resource_len(dev, 0)); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 355 | if (!fm->addr) |
| 356 | goto err_out_free; |
| 357 | |
Thomas Gleixner | 38515e9 | 2007-02-14 00:33:16 -0800 | [diff] [blame] | 358 | rc = request_irq(dev->irq, tifm_7xx1_isr, IRQF_SHARED, DRIVER_NAME, fm); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 359 | if (rc) |
| 360 | goto err_out_unmap; |
| 361 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 362 | rc = tifm_add_adapter(fm); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 363 | if (rc) |
| 364 | goto err_out_irq; |
| 365 | |
| 366 | writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 367 | writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1), |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 368 | fm->addr + FM_SET_INTERRUPT_ENABLE); |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame^] | 369 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 370 | return 0; |
| 371 | |
| 372 | err_out_irq: |
| 373 | free_irq(dev->irq, fm); |
| 374 | err_out_unmap: |
| 375 | iounmap(fm->addr); |
| 376 | err_out_free: |
| 377 | pci_set_drvdata(dev, NULL); |
| 378 | tifm_free_adapter(fm); |
| 379 | err_out_int: |
| 380 | pci_intx(dev, 0); |
| 381 | pci_release_regions(dev); |
| 382 | err_out: |
| 383 | if (!pci_dev_busy) |
| 384 | pci_disable_device(dev); |
| 385 | return rc; |
| 386 | } |
| 387 | |
| 388 | static void tifm_7xx1_remove(struct pci_dev *dev) |
| 389 | { |
| 390 | struct tifm_adapter *fm = pci_get_drvdata(dev); |
| 391 | unsigned long flags; |
| 392 | |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 393 | writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
| 394 | mmiowb(); |
| 395 | free_irq(dev->irq, fm); |
| 396 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 397 | spin_lock_irqsave(&fm->lock, flags); |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 398 | fm->socket_change_set = (1 << fm->num_sockets) - 1; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 399 | spin_unlock_irqrestore(&fm->lock, flags); |
| 400 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 401 | tifm_remove_adapter(fm); |
| 402 | |
Al Viro | e069d79 | 2006-10-09 20:29:43 +0100 | [diff] [blame] | 403 | pci_set_drvdata(dev, NULL); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 404 | |
| 405 | iounmap(fm->addr); |
| 406 | pci_intx(dev, 0); |
| 407 | pci_release_regions(dev); |
| 408 | |
| 409 | pci_disable_device(dev); |
| 410 | tifm_free_adapter(fm); |
| 411 | } |
| 412 | |
| 413 | static struct pci_device_id tifm_7xx1_pci_tbl [] = { |
Alex Dubov | b5ad676 | 2006-12-11 01:55:35 +1100 | [diff] [blame] | 414 | { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11_FM, PCI_ANY_ID, |
| 415 | PCI_ANY_ID, 0, 0, 0 }, /* xx21 - the one I have */ |
| 416 | { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12_FM, PCI_ANY_ID, |
| 417 | PCI_ANY_ID, 0, 0, 0 }, |
| 418 | { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX20_FM, PCI_ANY_ID, |
| 419 | PCI_ANY_ID, 0, 0, 0 }, |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 420 | { } |
| 421 | }; |
| 422 | |
| 423 | static struct pci_driver tifm_7xx1_driver = { |
| 424 | .name = DRIVER_NAME, |
| 425 | .id_table = tifm_7xx1_pci_tbl, |
| 426 | .probe = tifm_7xx1_probe, |
| 427 | .remove = tifm_7xx1_remove, |
| 428 | .suspend = tifm_7xx1_suspend, |
| 429 | .resume = tifm_7xx1_resume, |
| 430 | }; |
| 431 | |
| 432 | static int __init tifm_7xx1_init(void) |
| 433 | { |
| 434 | return pci_register_driver(&tifm_7xx1_driver); |
| 435 | } |
| 436 | |
| 437 | static void __exit tifm_7xx1_exit(void) |
| 438 | { |
| 439 | pci_unregister_driver(&tifm_7xx1_driver); |
| 440 | } |
| 441 | |
| 442 | MODULE_AUTHOR("Alex Dubov"); |
| 443 | MODULE_DESCRIPTION("TI FlashMedia host driver"); |
| 444 | MODULE_LICENSE("GPL"); |
| 445 | MODULE_DEVICE_TABLE(pci, tifm_7xx1_pci_tbl); |
| 446 | MODULE_VERSION(DRIVER_VERSION); |
| 447 | |
| 448 | module_init(tifm_7xx1_init); |
| 449 | module_exit(tifm_7xx1_exit); |