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 | 342c0ec | 2007-04-12 16:59:16 +1000 | [diff] [blame^] | 78 | static unsigned char tifm_7xx1_toggle_sock_power(char __iomem *sock_addr) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 79 | { |
| 80 | unsigned int s_state; |
| 81 | int cnt; |
| 82 | |
| 83 | writel(0x0e00, sock_addr + SOCK_CONTROL); |
| 84 | |
Alex Dubov | 342c0ec | 2007-04-12 16:59:16 +1000 | [diff] [blame^] | 85 | for (cnt = 16; cnt <= 256; cnt <<= 1) { |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 86 | if (!(TIFM_SOCK_STATE_POWERED |
| 87 | & readl(sock_addr + SOCK_PRESENT_STATE))) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 88 | break; |
Alex Dubov | 342c0ec | 2007-04-12 16:59:16 +1000 | [diff] [blame^] | 89 | |
| 90 | msleep(cnt); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 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 | |
Alex Dubov | 342c0ec | 2007-04-12 16:59:16 +1000 | [diff] [blame^] | 97 | writel(readl(sock_addr + SOCK_CONTROL) | TIFM_CTRL_LED, |
| 98 | sock_addr + SOCK_CONTROL); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 99 | |
Alex Dubov | 342c0ec | 2007-04-12 16:59:16 +1000 | [diff] [blame^] | 100 | /* xd needs some extra time before power on */ |
| 101 | if (((readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7) |
| 102 | == TIFM_TYPE_XD) |
| 103 | msleep(40); |
| 104 | |
| 105 | writel((s_state & 7) | 0x0c00, sock_addr + SOCK_CONTROL); |
| 106 | /* wait for power to stabilize */ |
| 107 | msleep(20); |
| 108 | for (cnt = 16; cnt <= 256; cnt <<= 1) { |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 109 | if ((TIFM_SOCK_STATE_POWERED |
| 110 | & readl(sock_addr + SOCK_PRESENT_STATE))) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 111 | break; |
Alex Dubov | 342c0ec | 2007-04-12 16:59:16 +1000 | [diff] [blame^] | 112 | |
| 113 | msleep(cnt); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 114 | } |
| 115 | |
Alex Dubov | 342c0ec | 2007-04-12 16:59:16 +1000 | [diff] [blame^] | 116 | writel(readl(sock_addr + SOCK_CONTROL) & (~TIFM_CTRL_LED), |
| 117 | sock_addr + SOCK_CONTROL); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 118 | |
| 119 | return (readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7; |
| 120 | } |
| 121 | |
Al Viro | e069d79 | 2006-10-09 20:29:43 +0100 | [diff] [blame] | 122 | inline static char __iomem * |
| 123 | tifm_7xx1_sock_addr(char __iomem *base_addr, unsigned int sock_num) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 124 | { |
| 125 | return base_addr + ((sock_num + 1) << 10); |
| 126 | } |
| 127 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 128 | static void tifm_7xx1_switch_media(struct work_struct *work) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 129 | { |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 130 | struct tifm_adapter *fm = container_of(work, struct tifm_adapter, |
| 131 | media_switcher); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 132 | unsigned long flags; |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 133 | unsigned char media_id; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 134 | char *card_name = "xx"; |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 135 | int cnt; |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 136 | struct tifm_dev *sock; |
| 137 | unsigned int socket_change_set; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 138 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 139 | spin_lock_irqsave(&fm->lock, flags); |
| 140 | socket_change_set = fm->socket_change_set; |
| 141 | fm->socket_change_set = 0; |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 142 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 143 | dev_dbg(fm->dev, "checking media set %x\n", |
| 144 | socket_change_set); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 145 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 146 | if (!socket_change_set) { |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 147 | spin_unlock_irqrestore(&fm->lock, flags); |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 148 | return; |
| 149 | } |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 150 | |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 151 | for (cnt = 0; cnt < fm->num_sockets; cnt++) { |
| 152 | if (!(socket_change_set & (1 << cnt))) |
| 153 | continue; |
| 154 | sock = fm->sockets[cnt]; |
| 155 | if (sock) { |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 156 | printk(KERN_INFO DRIVER_NAME |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 157 | ": demand removing card from socket %d\n", |
| 158 | cnt); |
| 159 | fm->sockets[cnt] = NULL; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 160 | spin_unlock_irqrestore(&fm->lock, flags); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 161 | device_unregister(&sock->dev); |
| 162 | spin_lock_irqsave(&fm->lock, flags); |
| 163 | writel(0x0e00, |
| 164 | tifm_7xx1_sock_addr(fm->addr, cnt) |
| 165 | + SOCK_CONTROL); |
| 166 | } |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 167 | |
| 168 | spin_unlock_irqrestore(&fm->lock, flags); |
| 169 | media_id = tifm_7xx1_toggle_sock_power( |
Alex Dubov | 342c0ec | 2007-04-12 16:59:16 +1000 | [diff] [blame^] | 170 | tifm_7xx1_sock_addr(fm->addr, cnt)); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 171 | if (media_id) { |
| 172 | sock = tifm_alloc_device(fm); |
| 173 | if (sock) { |
| 174 | sock->addr = tifm_7xx1_sock_addr(fm->addr, |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 175 | cnt); |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 176 | sock->type = media_id; |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 177 | sock->socket_id = cnt; |
| 178 | switch (media_id) { |
| 179 | case 1: |
| 180 | card_name = "xd"; |
| 181 | break; |
| 182 | case 2: |
| 183 | card_name = "ms"; |
| 184 | break; |
| 185 | case 3: |
| 186 | card_name = "sd"; |
| 187 | break; |
| 188 | default: |
| 189 | tifm_free_device(&sock->dev); |
| 190 | spin_lock_irqsave(&fm->lock, flags); |
| 191 | continue; |
| 192 | } |
| 193 | snprintf(sock->dev.bus_id, BUS_ID_SIZE, |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 194 | "tifm_%s%u:%u", card_name, |
| 195 | fm->id, cnt); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 196 | printk(KERN_INFO DRIVER_NAME |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 197 | ": %s card detected in socket %d\n", |
| 198 | card_name, cnt); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 199 | if (!device_register(&sock->dev)) { |
| 200 | spin_lock_irqsave(&fm->lock, flags); |
| 201 | if (!fm->sockets[cnt]) { |
| 202 | fm->sockets[cnt] = sock; |
| 203 | sock = NULL; |
| 204 | } |
| 205 | spin_unlock_irqrestore(&fm->lock, flags); |
| 206 | } |
| 207 | if (sock) |
| 208 | tifm_free_device(&sock->dev); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 209 | } |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 210 | spin_lock_irqsave(&fm->lock, flags); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 211 | } |
| 212 | } |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 213 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 214 | writel(TIFM_IRQ_FIFOMASK(socket_change_set) |
| 215 | | TIFM_IRQ_CARDMASK(socket_change_set), |
| 216 | fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
| 217 | |
| 218 | writel(TIFM_IRQ_FIFOMASK(socket_change_set) |
| 219 | | TIFM_IRQ_CARDMASK(socket_change_set), |
| 220 | fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 221 | |
| 222 | writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 223 | spin_unlock_irqrestore(&fm->lock, flags); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 224 | } |
| 225 | |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 226 | #ifdef CONFIG_PM |
| 227 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 228 | static int tifm_7xx1_suspend(struct pci_dev *dev, pm_message_t state) |
| 229 | { |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 230 | dev_dbg(&dev->dev, "suspending host\n"); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 231 | |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 232 | pci_save_state(dev); |
| 233 | pci_enable_wake(dev, pci_choose_state(dev, state), 0); |
| 234 | pci_disable_device(dev); |
| 235 | pci_set_power_state(dev, pci_choose_state(dev, state)); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 236 | return 0; |
| 237 | } |
| 238 | |
| 239 | static int tifm_7xx1_resume(struct pci_dev *dev) |
| 240 | { |
| 241 | struct tifm_adapter *fm = pci_get_drvdata(dev); |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 242 | int cnt, rc; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 243 | unsigned long flags; |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 244 | unsigned char new_ids[fm->num_sockets]; |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 245 | DECLARE_COMPLETION_ONSTACK(finish_resume); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 246 | |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 247 | pci_set_power_state(dev, PCI_D0); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 248 | pci_restore_state(dev); |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 249 | rc = pci_enable_device(dev); |
| 250 | if (rc) |
| 251 | return rc; |
| 252 | pci_set_master(dev); |
| 253 | |
| 254 | dev_dbg(&dev->dev, "resuming host\n"); |
| 255 | |
| 256 | for (cnt = 0; cnt < fm->num_sockets; cnt++) |
| 257 | new_ids[cnt] = tifm_7xx1_toggle_sock_power( |
Alex Dubov | 342c0ec | 2007-04-12 16:59:16 +1000 | [diff] [blame^] | 258 | tifm_7xx1_sock_addr(fm->addr, cnt)); |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 259 | spin_lock_irqsave(&fm->lock, flags); |
| 260 | fm->socket_change_set = 0; |
| 261 | for (cnt = 0; cnt < fm->num_sockets; cnt++) { |
| 262 | if (fm->sockets[cnt]) { |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 263 | if (fm->sockets[cnt]->type == new_ids[cnt]) |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 264 | fm->socket_change_set |= 1 << cnt; |
| 265 | |
Alex Dubov | e23f2b8 | 2007-04-12 16:59:14 +1000 | [diff] [blame] | 266 | fm->sockets[cnt]->type = new_ids[cnt]; |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 267 | } |
| 268 | } |
| 269 | |
| 270 | writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1), |
| 271 | fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 272 | if (!fm->socket_change_set) { |
| 273 | spin_unlock_irqrestore(&fm->lock, flags); |
| 274 | return 0; |
| 275 | } else { |
| 276 | fm->socket_change_set = 0; |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 277 | fm->finish_me = &finish_resume; |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 278 | spin_unlock_irqrestore(&fm->lock, flags); |
| 279 | } |
| 280 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 281 | wait_for_completion_timeout(&finish_resume, HZ); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 282 | |
| 283 | spin_lock_irqsave(&fm->lock, flags); |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 284 | fm->finish_me = NULL; |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 285 | writel(TIFM_IRQ_FIFOMASK(fm->socket_change_set) |
| 286 | | TIFM_IRQ_CARDMASK(fm->socket_change_set), |
| 287 | fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
| 288 | writel(TIFM_IRQ_FIFOMASK(fm->socket_change_set) |
| 289 | | TIFM_IRQ_CARDMASK(fm->socket_change_set), |
| 290 | fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 291 | writel(TIFM_IRQ_ENABLE, |
| 292 | fm->addr + FM_SET_INTERRUPT_ENABLE); |
| 293 | fm->socket_change_set = 0; |
| 294 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 295 | spin_unlock_irqrestore(&fm->lock, flags); |
| 296 | return 0; |
| 297 | } |
| 298 | |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 299 | #else |
| 300 | |
| 301 | #define tifm_7xx1_suspend NULL |
| 302 | #define tifm_7xx1_resume NULL |
| 303 | |
| 304 | #endif /* CONFIG_PM */ |
| 305 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 306 | static int tifm_7xx1_probe(struct pci_dev *dev, |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 307 | const struct pci_device_id *dev_id) |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 308 | { |
| 309 | struct tifm_adapter *fm; |
| 310 | int pci_dev_busy = 0; |
| 311 | int rc; |
| 312 | |
| 313 | rc = pci_set_dma_mask(dev, DMA_32BIT_MASK); |
| 314 | if (rc) |
| 315 | return rc; |
| 316 | |
| 317 | rc = pci_enable_device(dev); |
| 318 | if (rc) |
| 319 | return rc; |
| 320 | |
| 321 | pci_set_master(dev); |
| 322 | |
| 323 | rc = pci_request_regions(dev, DRIVER_NAME); |
| 324 | if (rc) { |
| 325 | pci_dev_busy = 1; |
| 326 | goto err_out; |
| 327 | } |
| 328 | |
| 329 | pci_intx(dev, 1); |
| 330 | |
| 331 | fm = tifm_alloc_adapter(); |
| 332 | if (!fm) { |
| 333 | rc = -ENOMEM; |
| 334 | goto err_out_int; |
| 335 | } |
| 336 | |
| 337 | fm->dev = &dev->dev; |
Alex Dubov | b5ad676 | 2006-12-11 01:55:35 +1100 | [diff] [blame] | 338 | fm->num_sockets = (dev->device == PCI_DEVICE_ID_TI_XX21_XX11_FM) |
| 339 | ? 4 : 2; |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 340 | fm->sockets = kzalloc(sizeof(struct tifm_dev*) * fm->num_sockets, |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 341 | GFP_KERNEL); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 342 | if (!fm->sockets) |
| 343 | goto err_out_free; |
| 344 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 345 | INIT_WORK(&fm->media_switcher, tifm_7xx1_switch_media); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 346 | fm->eject = tifm_7xx1_eject; |
| 347 | pci_set_drvdata(dev, fm); |
| 348 | |
| 349 | fm->addr = ioremap(pci_resource_start(dev, 0), |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 350 | pci_resource_len(dev, 0)); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 351 | if (!fm->addr) |
| 352 | goto err_out_free; |
| 353 | |
Thomas Gleixner | 38515e9 | 2007-02-14 00:33:16 -0800 | [diff] [blame] | 354 | 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] | 355 | if (rc) |
| 356 | goto err_out_unmap; |
| 357 | |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 358 | rc = tifm_add_adapter(fm); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 359 | if (rc) |
| 360 | goto err_out_irq; |
| 361 | |
| 362 | writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
Alex Dubov | 6412d92 | 2006-12-11 01:55:33 +1100 | [diff] [blame] | 363 | writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1), |
Alex Dubov | 8b40ada | 2006-12-11 01:55:36 +1100 | [diff] [blame] | 364 | fm->addr + FM_SET_INTERRUPT_ENABLE); |
Alex Dubov | 3540af8 | 2007-04-12 16:59:15 +1000 | [diff] [blame] | 365 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 366 | return 0; |
| 367 | |
| 368 | err_out_irq: |
| 369 | free_irq(dev->irq, fm); |
| 370 | err_out_unmap: |
| 371 | iounmap(fm->addr); |
| 372 | err_out_free: |
| 373 | pci_set_drvdata(dev, NULL); |
| 374 | tifm_free_adapter(fm); |
| 375 | err_out_int: |
| 376 | pci_intx(dev, 0); |
| 377 | pci_release_regions(dev); |
| 378 | err_out: |
| 379 | if (!pci_dev_busy) |
| 380 | pci_disable_device(dev); |
| 381 | return rc; |
| 382 | } |
| 383 | |
| 384 | static void tifm_7xx1_remove(struct pci_dev *dev) |
| 385 | { |
| 386 | struct tifm_adapter *fm = pci_get_drvdata(dev); |
| 387 | unsigned long flags; |
| 388 | |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 389 | writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
| 390 | mmiowb(); |
| 391 | free_irq(dev->irq, fm); |
| 392 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 393 | spin_lock_irqsave(&fm->lock, flags); |
Alex Dubov | 7146f0d | 2006-12-18 14:20:06 +1100 | [diff] [blame] | 394 | fm->socket_change_set = (1 << fm->num_sockets) - 1; |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 395 | spin_unlock_irqrestore(&fm->lock, flags); |
| 396 | |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 397 | tifm_remove_adapter(fm); |
| 398 | |
Al Viro | e069d79 | 2006-10-09 20:29:43 +0100 | [diff] [blame] | 399 | pci_set_drvdata(dev, NULL); |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 400 | |
| 401 | iounmap(fm->addr); |
| 402 | pci_intx(dev, 0); |
| 403 | pci_release_regions(dev); |
| 404 | |
| 405 | pci_disable_device(dev); |
| 406 | tifm_free_adapter(fm); |
| 407 | } |
| 408 | |
| 409 | static struct pci_device_id tifm_7xx1_pci_tbl [] = { |
Alex Dubov | b5ad676 | 2006-12-11 01:55:35 +1100 | [diff] [blame] | 410 | { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11_FM, PCI_ANY_ID, |
| 411 | PCI_ANY_ID, 0, 0, 0 }, /* xx21 - the one I have */ |
| 412 | { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12_FM, PCI_ANY_ID, |
| 413 | PCI_ANY_ID, 0, 0, 0 }, |
| 414 | { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX20_FM, PCI_ANY_ID, |
| 415 | PCI_ANY_ID, 0, 0, 0 }, |
Alex Dubov | 4020f2d | 2006-10-04 02:15:37 -0700 | [diff] [blame] | 416 | { } |
| 417 | }; |
| 418 | |
| 419 | static struct pci_driver tifm_7xx1_driver = { |
| 420 | .name = DRIVER_NAME, |
| 421 | .id_table = tifm_7xx1_pci_tbl, |
| 422 | .probe = tifm_7xx1_probe, |
| 423 | .remove = tifm_7xx1_remove, |
| 424 | .suspend = tifm_7xx1_suspend, |
| 425 | .resume = tifm_7xx1_resume, |
| 426 | }; |
| 427 | |
| 428 | static int __init tifm_7xx1_init(void) |
| 429 | { |
| 430 | return pci_register_driver(&tifm_7xx1_driver); |
| 431 | } |
| 432 | |
| 433 | static void __exit tifm_7xx1_exit(void) |
| 434 | { |
| 435 | pci_unregister_driver(&tifm_7xx1_driver); |
| 436 | } |
| 437 | |
| 438 | MODULE_AUTHOR("Alex Dubov"); |
| 439 | MODULE_DESCRIPTION("TI FlashMedia host driver"); |
| 440 | MODULE_LICENSE("GPL"); |
| 441 | MODULE_DEVICE_TABLE(pci, tifm_7xx1_pci_tbl); |
| 442 | MODULE_VERSION(DRIVER_VERSION); |
| 443 | |
| 444 | module_init(tifm_7xx1_init); |
| 445 | module_exit(tifm_7xx1_exit); |