Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * PCMCIA 16-bit resource management functions |
| 3 | * |
| 4 | * The initial developer of the original code is David A. Hinds |
| 5 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds |
| 6 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. |
| 7 | * |
| 8 | * Copyright (C) 1999 David A. Hinds |
| 9 | * Copyright (C) 2004-2005 Dominik Brodowski |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License version 2 as |
| 13 | * published by the Free Software Foundation. |
| 14 | * |
| 15 | */ |
| 16 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 17 | #include <linux/module.h> |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/interrupt.h> |
| 20 | #include <linux/delay.h> |
| 21 | #include <linux/pci.h> |
| 22 | #include <linux/device.h> |
| 23 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 24 | #include <pcmcia/cs_types.h> |
| 25 | #include <pcmcia/ss.h> |
| 26 | #include <pcmcia/cs.h> |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 27 | #include <pcmcia/cistpl.h> |
| 28 | #include <pcmcia/cisreg.h> |
| 29 | #include <pcmcia/ds.h> |
| 30 | |
| 31 | #include "cs_internal.h" |
| 32 | #include "ds_internal.h" |
| 33 | |
| 34 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 35 | /* Access speed for IO windows */ |
| 36 | static int io_speed = 0; |
| 37 | module_param(io_speed, int, 0444); |
| 38 | |
| 39 | |
| 40 | #ifdef CONFIG_PCMCIA_PROBE |
Al Viro | 531e5ca | 2005-08-23 22:47:01 +0100 | [diff] [blame] | 41 | #include <asm/irq.h> |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 42 | /* mask of IRQs already reserved by other cards, we should avoid using them */ |
| 43 | static u8 pcmcia_used_irq[NR_IRQS]; |
| 44 | #endif |
| 45 | |
| 46 | |
| 47 | #ifdef DEBUG |
| 48 | extern int ds_pc_debug; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 49 | |
| 50 | #define ds_dbg(skt, lvl, fmt, arg...) do { \ |
| 51 | if (ds_pc_debug >= lvl) \ |
| 52 | printk(KERN_DEBUG "pcmcia_resource: %s: " fmt, \ |
| 53 | cs_socket_name(skt) , ## arg); \ |
| 54 | } while (0) |
| 55 | #else |
| 56 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) |
| 57 | #endif |
| 58 | |
| 59 | |
| 60 | |
| 61 | /** alloc_io_space |
| 62 | * |
| 63 | * Special stuff for managing IO windows, because they are scarce |
| 64 | */ |
| 65 | |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 66 | static int alloc_io_space(struct pcmcia_socket *s, u_int attr, |
| 67 | unsigned int *base, unsigned int num, u_int lines) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 68 | { |
| 69 | int i; |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 70 | unsigned int try, align; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 71 | |
| 72 | align = (*base) ? (lines ? 1<<lines : 0) : 1; |
| 73 | if (align && (align < num)) { |
| 74 | if (*base) { |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 75 | ds_dbg(s, 0, "odd IO request: num %#x align %#x\n", |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 76 | num, align); |
| 77 | align = 0; |
| 78 | } else |
| 79 | while (align && (align < num)) align <<= 1; |
| 80 | } |
| 81 | if (*base & ~(align-1)) { |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 82 | ds_dbg(s, 0, "odd IO request: base %#x align %#x\n", |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 83 | *base, align); |
| 84 | align = 0; |
| 85 | } |
| 86 | if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) { |
| 87 | *base = s->io_offset | (*base & 0x0fff); |
| 88 | return 0; |
| 89 | } |
| 90 | /* Check for an already-allocated window that must conflict with |
| 91 | * what was asked for. It is a hack because it does not catch all |
| 92 | * potential conflicts, just the most obvious ones. |
| 93 | */ |
| 94 | for (i = 0; i < MAX_IO_WIN; i++) |
Kaustav Majumdar | 4708b5f | 2006-10-20 14:44:09 -0700 | [diff] [blame] | 95 | if ((s->io[i].res) && *base && |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 96 | ((s->io[i].res->start & (align-1)) == *base)) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 97 | return 1; |
| 98 | for (i = 0; i < MAX_IO_WIN; i++) { |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 99 | if (!s->io[i].res) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 100 | s->io[i].res = pcmcia_find_io_region(*base, num, align, s); |
| 101 | if (s->io[i].res) { |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 102 | *base = s->io[i].res->start; |
| 103 | s->io[i].res->flags = (s->io[i].res->flags & ~IORESOURCE_BITS) | (attr & IORESOURCE_BITS); |
| 104 | s->io[i].InUse = num; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 105 | break; |
| 106 | } else |
| 107 | return 1; |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 108 | } else if ((s->io[i].res->flags & IORESOURCE_BITS) != (attr & IORESOURCE_BITS)) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 109 | continue; |
| 110 | /* Try to extend top of window */ |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 111 | try = s->io[i].res->end + 1; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 112 | if ((*base == 0) || (*base == try)) |
| 113 | if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start, |
| 114 | s->io[i].res->end + num, s) == 0) { |
| 115 | *base = try; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 116 | s->io[i].InUse += num; |
| 117 | break; |
| 118 | } |
| 119 | /* Try to extend bottom of window */ |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 120 | try = s->io[i].res->start - num; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 121 | if ((*base == 0) || (*base == try)) |
| 122 | if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num, |
| 123 | s->io[i].res->end, s) == 0) { |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 124 | *base = try; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 125 | s->io[i].InUse += num; |
| 126 | break; |
| 127 | } |
| 128 | } |
| 129 | return (i == MAX_IO_WIN); |
| 130 | } /* alloc_io_space */ |
| 131 | |
| 132 | |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 133 | static void release_io_space(struct pcmcia_socket *s, unsigned int base, |
| 134 | unsigned int num) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 135 | { |
| 136 | int i; |
| 137 | |
| 138 | for (i = 0; i < MAX_IO_WIN; i++) { |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 139 | if (!s->io[i].res) |
| 140 | continue; |
| 141 | if ((s->io[i].res->start <= base) && |
| 142 | (s->io[i].res->end >= base+num-1)) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 143 | s->io[i].InUse -= num; |
| 144 | /* Free the window if no one else is using it */ |
| 145 | if (s->io[i].InUse == 0) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 146 | release_resource(s->io[i].res); |
| 147 | kfree(s->io[i].res); |
| 148 | s->io[i].res = NULL; |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | } /* release_io_space */ |
| 153 | |
| 154 | |
| 155 | /** pccard_access_configuration_register |
| 156 | * |
| 157 | * Access_configuration_register() reads and writes configuration |
| 158 | * registers in attribute memory. Memory window 0 is reserved for |
| 159 | * this and the tuple reading services. |
| 160 | */ |
| 161 | |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 162 | int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 163 | conf_reg_t *reg) |
| 164 | { |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 165 | struct pcmcia_socket *s; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 166 | config_t *c; |
| 167 | int addr; |
| 168 | u_char val; |
| 169 | |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 170 | if (!p_dev || !p_dev->function_config) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 171 | return CS_NO_CARD; |
| 172 | |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 173 | s = p_dev->socket; |
| 174 | c = p_dev->function_config; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 175 | |
| 176 | if (!(c->state & CONFIG_LOCKED)) |
| 177 | return CS_CONFIGURATION_LOCKED; |
| 178 | |
| 179 | addr = (c->ConfigBase + reg->Offset) >> 1; |
| 180 | |
| 181 | switch (reg->Action) { |
| 182 | case CS_READ: |
| 183 | pcmcia_read_cis_mem(s, 1, addr, 1, &val); |
| 184 | reg->Value = val; |
| 185 | break; |
| 186 | case CS_WRITE: |
| 187 | val = reg->Value; |
| 188 | pcmcia_write_cis_mem(s, 1, addr, 1, &val); |
| 189 | break; |
| 190 | default: |
| 191 | return CS_BAD_ARGS; |
| 192 | break; |
| 193 | } |
| 194 | return CS_SUCCESS; |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 195 | } /* pcmcia_access_configuration_register */ |
Dominik Brodowski | 3448139 | 2005-06-27 16:28:54 -0700 | [diff] [blame] | 196 | EXPORT_SYMBOL(pcmcia_access_configuration_register); |
| 197 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 198 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 199 | int pccard_get_configuration_info(struct pcmcia_socket *s, |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 200 | struct pcmcia_device *p_dev, |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 201 | config_info_t *config) |
| 202 | { |
| 203 | config_t *c; |
| 204 | |
| 205 | if (!(s->state & SOCKET_PRESENT)) |
| 206 | return CS_NO_CARD; |
| 207 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 208 | |
| 209 | #ifdef CONFIG_CARDBUS |
| 210 | if (s->state & SOCKET_CARDBUS) { |
| 211 | memset(config, 0, sizeof(config_info_t)); |
| 212 | config->Vcc = s->socket.Vcc; |
| 213 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; |
| 214 | config->Option = s->cb_dev->subordinate->number; |
| 215 | if (s->state & SOCKET_CARDBUS_CONFIG) { |
| 216 | config->Attributes = CONF_VALID_CLIENT; |
| 217 | config->IntType = INT_CARDBUS; |
| 218 | config->AssignedIRQ = s->irq.AssignedIRQ; |
| 219 | if (config->AssignedIRQ) |
| 220 | config->Attributes |= CONF_ENABLE_IRQ; |
Daniel Ritz | 48b950f | 2006-04-14 17:42:13 +0200 | [diff] [blame] | 221 | if (s->io[0].res) { |
| 222 | config->BasePort1 = s->io[0].res->start; |
| 223 | config->NumPorts1 = s->io[0].res->end - config->BasePort1 + 1; |
| 224 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 225 | } |
| 226 | return CS_SUCCESS; |
| 227 | } |
| 228 | #endif |
| 229 | |
Daniel Ritz | 48b950f | 2006-04-14 17:42:13 +0200 | [diff] [blame] | 230 | if (p_dev) { |
| 231 | c = p_dev->function_config; |
| 232 | config->Function = p_dev->func; |
| 233 | } else { |
| 234 | c = NULL; |
| 235 | config->Function = 0; |
| 236 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 237 | |
| 238 | if ((c == NULL) || !(c->state & CONFIG_LOCKED)) { |
| 239 | config->Attributes = 0; |
| 240 | config->Vcc = s->socket.Vcc; |
| 241 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; |
| 242 | return CS_SUCCESS; |
| 243 | } |
| 244 | |
Daniel Ritz | 47a31976 | 2006-07-30 03:03:49 -0700 | [diff] [blame] | 245 | config->Attributes = c->Attributes | CONF_VALID_CLIENT; |
| 246 | config->Vcc = s->socket.Vcc; |
| 247 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; |
| 248 | config->IntType = c->IntType; |
| 249 | config->ConfigBase = c->ConfigBase; |
| 250 | config->Status = c->Status; |
| 251 | config->Pin = c->Pin; |
| 252 | config->Copy = c->Copy; |
| 253 | config->Option = c->Option; |
| 254 | config->ExtStatus = c->ExtStatus; |
| 255 | config->Present = config->CardValues = c->CardValues; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 256 | config->IRQAttributes = c->irq.Attributes; |
| 257 | config->AssignedIRQ = s->irq.AssignedIRQ; |
| 258 | config->BasePort1 = c->io.BasePort1; |
| 259 | config->NumPorts1 = c->io.NumPorts1; |
| 260 | config->Attributes1 = c->io.Attributes1; |
| 261 | config->BasePort2 = c->io.BasePort2; |
| 262 | config->NumPorts2 = c->io.NumPorts2; |
| 263 | config->Attributes2 = c->io.Attributes2; |
| 264 | config->IOAddrLines = c->io.IOAddrLines; |
| 265 | |
| 266 | return CS_SUCCESS; |
| 267 | } /* pccard_get_configuration_info */ |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 268 | |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 269 | int pcmcia_get_configuration_info(struct pcmcia_device *p_dev, |
Dominik Brodowski | 3448139 | 2005-06-27 16:28:54 -0700 | [diff] [blame] | 270 | config_info_t *config) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 271 | { |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 272 | return pccard_get_configuration_info(p_dev->socket, p_dev, |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 273 | config); |
Dominik Brodowski | 3448139 | 2005-06-27 16:28:54 -0700 | [diff] [blame] | 274 | } |
| 275 | EXPORT_SYMBOL(pcmcia_get_configuration_info); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 276 | |
| 277 | |
| 278 | /** pcmcia_get_window |
| 279 | */ |
| 280 | int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle, |
| 281 | int idx, win_req_t *req) |
| 282 | { |
| 283 | window_t *win; |
| 284 | int w; |
| 285 | |
| 286 | if (!s || !(s->state & SOCKET_PRESENT)) |
| 287 | return CS_NO_CARD; |
| 288 | for (w = idx; w < MAX_WIN; w++) |
| 289 | if (s->state & SOCKET_WIN_REQ(w)) |
| 290 | break; |
| 291 | if (w == MAX_WIN) |
| 292 | return CS_NO_MORE_ITEMS; |
| 293 | win = &s->win[w]; |
| 294 | req->Base = win->ctl.res->start; |
| 295 | req->Size = win->ctl.res->end - win->ctl.res->start + 1; |
| 296 | req->AccessSpeed = win->ctl.speed; |
| 297 | req->Attributes = 0; |
| 298 | if (win->ctl.flags & MAP_ATTRIB) |
| 299 | req->Attributes |= WIN_MEMORY_TYPE_AM; |
| 300 | if (win->ctl.flags & MAP_ACTIVE) |
| 301 | req->Attributes |= WIN_ENABLE; |
| 302 | if (win->ctl.flags & MAP_16BIT) |
| 303 | req->Attributes |= WIN_DATA_WIDTH_16; |
| 304 | if (win->ctl.flags & MAP_USE_WAIT) |
| 305 | req->Attributes |= WIN_USE_WAIT; |
| 306 | *handle = win; |
| 307 | return CS_SUCCESS; |
| 308 | } /* pcmcia_get_window */ |
| 309 | EXPORT_SYMBOL(pcmcia_get_window); |
| 310 | |
| 311 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 312 | /** pcmcia_get_mem_page |
| 313 | * |
| 314 | * Change the card address of an already open memory window. |
| 315 | */ |
| 316 | int pcmcia_get_mem_page(window_handle_t win, memreq_t *req) |
| 317 | { |
| 318 | if ((win == NULL) || (win->magic != WINDOW_MAGIC)) |
| 319 | return CS_BAD_HANDLE; |
| 320 | req->Page = 0; |
| 321 | req->CardOffset = win->ctl.card_start; |
| 322 | return CS_SUCCESS; |
| 323 | } /* pcmcia_get_mem_page */ |
| 324 | EXPORT_SYMBOL(pcmcia_get_mem_page); |
| 325 | |
| 326 | |
| 327 | int pcmcia_map_mem_page(window_handle_t win, memreq_t *req) |
| 328 | { |
| 329 | struct pcmcia_socket *s; |
| 330 | if ((win == NULL) || (win->magic != WINDOW_MAGIC)) |
| 331 | return CS_BAD_HANDLE; |
| 332 | if (req->Page != 0) |
| 333 | return CS_BAD_PAGE; |
| 334 | s = win->sock; |
| 335 | win->ctl.card_start = req->CardOffset; |
| 336 | if (s->ops->set_mem_map(s, &win->ctl) != 0) |
| 337 | return CS_BAD_OFFSET; |
| 338 | return CS_SUCCESS; |
| 339 | } /* pcmcia_map_mem_page */ |
| 340 | EXPORT_SYMBOL(pcmcia_map_mem_page); |
| 341 | |
| 342 | |
| 343 | /** pcmcia_modify_configuration |
| 344 | * |
| 345 | * Modify a locked socket configuration |
| 346 | */ |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 347 | int pcmcia_modify_configuration(struct pcmcia_device *p_dev, |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 348 | modconf_t *mod) |
| 349 | { |
| 350 | struct pcmcia_socket *s; |
| 351 | config_t *c; |
| 352 | |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 353 | s = p_dev->socket; |
Dominik Brodowski | dbb22f0 | 2006-01-10 20:41:27 +0100 | [diff] [blame] | 354 | c = p_dev->function_config; |
| 355 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 356 | if (!(s->state & SOCKET_PRESENT)) |
| 357 | return CS_NO_CARD; |
| 358 | if (!(c->state & CONFIG_LOCKED)) |
| 359 | return CS_CONFIGURATION_LOCKED; |
| 360 | |
| 361 | if (mod->Attributes & CONF_IRQ_CHANGE_VALID) { |
| 362 | if (mod->Attributes & CONF_ENABLE_IRQ) { |
| 363 | c->Attributes |= CONF_ENABLE_IRQ; |
| 364 | s->socket.io_irq = s->irq.AssignedIRQ; |
| 365 | } else { |
| 366 | c->Attributes &= ~CONF_ENABLE_IRQ; |
| 367 | s->socket.io_irq = 0; |
| 368 | } |
| 369 | s->ops->set_socket(s, &s->socket); |
| 370 | } |
| 371 | |
| 372 | if (mod->Attributes & CONF_VCC_CHANGE_VALID) |
| 373 | return CS_BAD_VCC; |
| 374 | |
| 375 | /* We only allow changing Vpp1 and Vpp2 to the same value */ |
| 376 | if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) && |
| 377 | (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { |
| 378 | if (mod->Vpp1 != mod->Vpp2) |
| 379 | return CS_BAD_VPP; |
Dominik Brodowski | 71ed90d | 2005-09-09 13:03:27 -0700 | [diff] [blame] | 380 | s->socket.Vpp = mod->Vpp1; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 381 | if (s->ops->set_socket(s, &s->socket)) |
| 382 | return CS_BAD_VPP; |
| 383 | } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) || |
| 384 | (mod->Attributes & CONF_VPP2_CHANGE_VALID)) |
| 385 | return CS_BAD_VPP; |
| 386 | |
Dominik Brodowski | 4bbed52 | 2006-01-15 11:18:12 +0100 | [diff] [blame] | 387 | if (mod->Attributes & CONF_IO_CHANGE_WIDTH) { |
| 388 | pccard_io_map io_off = { 0, 0, 0, 0, 1 }; |
| 389 | pccard_io_map io_on; |
| 390 | int i; |
| 391 | |
| 392 | io_on.speed = io_speed; |
| 393 | for (i = 0; i < MAX_IO_WIN; i++) { |
| 394 | if (!s->io[i].res) |
| 395 | continue; |
| 396 | io_off.map = i; |
| 397 | io_on.map = i; |
| 398 | |
| 399 | io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8; |
| 400 | io_on.start = s->io[i].res->start; |
| 401 | io_on.stop = s->io[i].res->end; |
| 402 | |
| 403 | s->ops->set_io_map(s, &io_off); |
| 404 | mdelay(40); |
| 405 | s->ops->set_io_map(s, &io_on); |
| 406 | } |
| 407 | } |
| 408 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 409 | return CS_SUCCESS; |
| 410 | } /* modify_configuration */ |
| 411 | EXPORT_SYMBOL(pcmcia_modify_configuration); |
| 412 | |
| 413 | |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 414 | int pcmcia_release_configuration(struct pcmcia_device *p_dev) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 415 | { |
| 416 | pccard_io_map io = { 0, 0, 0, 0, 1 }; |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 417 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 418 | config_t *c = p_dev->function_config; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 419 | int i; |
| 420 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 421 | if (p_dev->_locked) { |
| 422 | p_dev->_locked = 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 423 | if (--(s->lock_count) == 0) { |
| 424 | s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */ |
| 425 | s->socket.Vpp = 0; |
| 426 | s->socket.io_irq = 0; |
| 427 | s->ops->set_socket(s, &s->socket); |
| 428 | } |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 429 | } |
| 430 | if (c->state & CONFIG_LOCKED) { |
| 431 | c->state &= ~CONFIG_LOCKED; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 432 | if (c->state & CONFIG_IO_REQ) |
| 433 | for (i = 0; i < MAX_IO_WIN; i++) { |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 434 | if (!s->io[i].res) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 435 | continue; |
| 436 | s->io[i].Config--; |
| 437 | if (s->io[i].Config != 0) |
| 438 | continue; |
| 439 | io.map = i; |
| 440 | s->ops->set_io_map(s, &io); |
| 441 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 442 | } |
| 443 | |
| 444 | return CS_SUCCESS; |
| 445 | } /* pcmcia_release_configuration */ |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 446 | |
| 447 | |
| 448 | /** pcmcia_release_io |
| 449 | * |
| 450 | * Release_io() releases the I/O ranges allocated by a client. This |
| 451 | * may be invoked some time after a card ejection has already dumped |
| 452 | * the actual socket configuration, so if the client is "stale", we |
| 453 | * don't bother checking the port ranges against the current socket |
| 454 | * values. |
| 455 | */ |
Adrian Bunk | b4c8840 | 2006-01-18 23:53:13 -0800 | [diff] [blame] | 456 | static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 457 | { |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 458 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 459 | config_t *c = p_dev->function_config; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 460 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 461 | if (!p_dev->_io ) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 462 | return CS_BAD_HANDLE; |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 463 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 464 | p_dev->_io = 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 465 | |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 466 | if ((c->io.BasePort1 != req->BasePort1) || |
| 467 | (c->io.NumPorts1 != req->NumPorts1) || |
| 468 | (c->io.BasePort2 != req->BasePort2) || |
| 469 | (c->io.NumPorts2 != req->NumPorts2)) |
| 470 | return CS_BAD_ARGS; |
| 471 | |
| 472 | c->state &= ~CONFIG_IO_REQ; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 473 | |
| 474 | release_io_space(s, req->BasePort1, req->NumPorts1); |
| 475 | if (req->NumPorts2) |
| 476 | release_io_space(s, req->BasePort2, req->NumPorts2); |
| 477 | |
| 478 | return CS_SUCCESS; |
| 479 | } /* pcmcia_release_io */ |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 480 | |
| 481 | |
Adrian Bunk | b4c8840 | 2006-01-18 23:53:13 -0800 | [diff] [blame] | 482 | static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 483 | { |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 484 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 485 | config_t *c= p_dev->function_config; |
| 486 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 487 | if (!p_dev->_irq) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 488 | return CS_BAD_HANDLE; |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 489 | p_dev->_irq = 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 490 | |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 491 | if (c->state & CONFIG_LOCKED) |
| 492 | return CS_CONFIGURATION_LOCKED; |
| 493 | if (c->irq.Attributes != req->Attributes) |
| 494 | return CS_BAD_ATTRIBUTE; |
| 495 | if (s->irq.AssignedIRQ != req->AssignedIRQ) |
| 496 | return CS_BAD_IRQ; |
| 497 | if (--s->irq.Config == 0) { |
| 498 | c->state &= ~CONFIG_IRQ_REQ; |
| 499 | s->irq.AssignedIRQ = 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 500 | } |
| 501 | |
| 502 | if (req->Attributes & IRQ_HANDLE_PRESENT) { |
| 503 | free_irq(req->AssignedIRQ, req->Instance); |
| 504 | } |
| 505 | |
| 506 | #ifdef CONFIG_PCMCIA_PROBE |
| 507 | pcmcia_used_irq[req->AssignedIRQ]--; |
| 508 | #endif |
| 509 | |
| 510 | return CS_SUCCESS; |
| 511 | } /* pcmcia_release_irq */ |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 512 | |
| 513 | |
| 514 | int pcmcia_release_window(window_handle_t win) |
| 515 | { |
| 516 | struct pcmcia_socket *s; |
| 517 | |
| 518 | if ((win == NULL) || (win->magic != WINDOW_MAGIC)) |
| 519 | return CS_BAD_HANDLE; |
| 520 | s = win->sock; |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 521 | if (!(win->handle->_win & CLIENT_WIN_REQ(win->index))) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 522 | return CS_BAD_HANDLE; |
| 523 | |
| 524 | /* Shut down memory window */ |
| 525 | win->ctl.flags &= ~MAP_ACTIVE; |
| 526 | s->ops->set_mem_map(s, &win->ctl); |
| 527 | s->state &= ~SOCKET_WIN_REQ(win->index); |
| 528 | |
| 529 | /* Release system memory */ |
| 530 | if (win->ctl.res) { |
| 531 | release_resource(win->ctl.res); |
| 532 | kfree(win->ctl.res); |
| 533 | win->ctl.res = NULL; |
| 534 | } |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 535 | win->handle->_win &= ~CLIENT_WIN_REQ(win->index); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 536 | |
| 537 | win->magic = 0; |
| 538 | |
| 539 | return CS_SUCCESS; |
| 540 | } /* pcmcia_release_window */ |
| 541 | EXPORT_SYMBOL(pcmcia_release_window); |
| 542 | |
| 543 | |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 544 | int pcmcia_request_configuration(struct pcmcia_device *p_dev, |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 545 | config_req_t *req) |
| 546 | { |
| 547 | int i; |
| 548 | u_int base; |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 549 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 550 | config_t *c; |
| 551 | pccard_io_map iomap; |
| 552 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 553 | if (!(s->state & SOCKET_PRESENT)) |
| 554 | return CS_NO_CARD; |
| 555 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 556 | if (req->IntType & INT_CARDBUS) |
| 557 | return CS_UNSUPPORTED_MODE; |
Dominik Brodowski | dbb22f0 | 2006-01-10 20:41:27 +0100 | [diff] [blame] | 558 | c = p_dev->function_config; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 559 | if (c->state & CONFIG_LOCKED) |
| 560 | return CS_CONFIGURATION_LOCKED; |
| 561 | |
| 562 | /* Do power control. We don't allow changes in Vcc. */ |
Dominik Brodowski | 70294b4 | 2006-01-15 12:43:16 +0100 | [diff] [blame] | 563 | s->socket.Vpp = req->Vpp; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 564 | if (s->ops->set_socket(s, &s->socket)) |
| 565 | return CS_BAD_VPP; |
| 566 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 567 | /* Pick memory or I/O card, DMA mode, interrupt */ |
| 568 | c->IntType = req->IntType; |
| 569 | c->Attributes = req->Attributes; |
| 570 | if (req->IntType & INT_MEMORY_AND_IO) |
| 571 | s->socket.flags |= SS_IOCARD; |
| 572 | if (req->IntType & INT_ZOOMED_VIDEO) |
| 573 | s->socket.flags |= SS_ZVCARD | SS_IOCARD; |
| 574 | if (req->Attributes & CONF_ENABLE_DMA) |
| 575 | s->socket.flags |= SS_DMA_MODE; |
| 576 | if (req->Attributes & CONF_ENABLE_SPKR) |
| 577 | s->socket.flags |= SS_SPKR_ENA; |
| 578 | if (req->Attributes & CONF_ENABLE_IRQ) |
| 579 | s->socket.io_irq = s->irq.AssignedIRQ; |
| 580 | else |
| 581 | s->socket.io_irq = 0; |
| 582 | s->ops->set_socket(s, &s->socket); |
| 583 | s->lock_count++; |
| 584 | |
| 585 | /* Set up CIS configuration registers */ |
| 586 | base = c->ConfigBase = req->ConfigBase; |
Dominik Brodowski | 1ae9c7d | 2006-01-10 20:40:40 +0100 | [diff] [blame] | 587 | c->CardValues = req->Present; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 588 | if (req->Present & PRESENT_COPY) { |
| 589 | c->Copy = req->Copy; |
| 590 | pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy); |
| 591 | } |
| 592 | if (req->Present & PRESENT_OPTION) { |
| 593 | if (s->functions == 1) { |
| 594 | c->Option = req->ConfigIndex & COR_CONFIG_MASK; |
| 595 | } else { |
| 596 | c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK; |
| 597 | c->Option |= COR_FUNC_ENA|COR_IREQ_ENA; |
| 598 | if (req->Present & PRESENT_IOBASE_0) |
| 599 | c->Option |= COR_ADDR_DECODE; |
| 600 | } |
| 601 | if (c->state & CONFIG_IRQ_REQ) |
| 602 | if (!(c->irq.Attributes & IRQ_FORCED_PULSE)) |
| 603 | c->Option |= COR_LEVEL_REQ; |
| 604 | pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option); |
| 605 | mdelay(40); |
| 606 | } |
| 607 | if (req->Present & PRESENT_STATUS) { |
| 608 | c->Status = req->Status; |
| 609 | pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status); |
| 610 | } |
| 611 | if (req->Present & PRESENT_PIN_REPLACE) { |
| 612 | c->Pin = req->Pin; |
| 613 | pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin); |
| 614 | } |
| 615 | if (req->Present & PRESENT_EXT_STATUS) { |
| 616 | c->ExtStatus = req->ExtStatus; |
| 617 | pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus); |
| 618 | } |
| 619 | if (req->Present & PRESENT_IOBASE_0) { |
| 620 | u_char b = c->io.BasePort1 & 0xff; |
| 621 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b); |
| 622 | b = (c->io.BasePort1 >> 8) & 0xff; |
| 623 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b); |
| 624 | } |
| 625 | if (req->Present & PRESENT_IOSIZE) { |
| 626 | u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1; |
| 627 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b); |
| 628 | } |
| 629 | |
| 630 | /* Configure I/O windows */ |
| 631 | if (c->state & CONFIG_IO_REQ) { |
| 632 | iomap.speed = io_speed; |
| 633 | for (i = 0; i < MAX_IO_WIN; i++) |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 634 | if (s->io[i].res) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 635 | iomap.map = i; |
| 636 | iomap.flags = MAP_ACTIVE; |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 637 | switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 638 | case IO_DATA_PATH_WIDTH_16: |
| 639 | iomap.flags |= MAP_16BIT; break; |
| 640 | case IO_DATA_PATH_WIDTH_AUTO: |
| 641 | iomap.flags |= MAP_AUTOSZ; break; |
| 642 | default: |
| 643 | break; |
| 644 | } |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 645 | iomap.start = s->io[i].res->start; |
| 646 | iomap.stop = s->io[i].res->end; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 647 | s->ops->set_io_map(s, &iomap); |
| 648 | s->io[i].Config++; |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | c->state |= CONFIG_LOCKED; |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 653 | p_dev->_locked = 1; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 654 | return CS_SUCCESS; |
| 655 | } /* pcmcia_request_configuration */ |
| 656 | EXPORT_SYMBOL(pcmcia_request_configuration); |
| 657 | |
| 658 | |
| 659 | /** pcmcia_request_io |
| 660 | * |
| 661 | * Request_io() reserves ranges of port addresses for a socket. |
| 662 | * I have not implemented range sharing or alias addressing. |
| 663 | */ |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 664 | int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 665 | { |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 666 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 667 | config_t *c; |
| 668 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 669 | if (!(s->state & SOCKET_PRESENT)) |
| 670 | return CS_NO_CARD; |
| 671 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 672 | if (!req) |
| 673 | return CS_UNSUPPORTED_MODE; |
Dominik Brodowski | dbb22f0 | 2006-01-10 20:41:27 +0100 | [diff] [blame] | 674 | c = p_dev->function_config; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 675 | if (c->state & CONFIG_LOCKED) |
| 676 | return CS_CONFIGURATION_LOCKED; |
| 677 | if (c->state & CONFIG_IO_REQ) |
| 678 | return CS_IN_USE; |
| 679 | if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) |
| 680 | return CS_BAD_ATTRIBUTE; |
| 681 | if ((req->NumPorts2 > 0) && |
| 682 | (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) |
| 683 | return CS_BAD_ATTRIBUTE; |
| 684 | |
| 685 | if (alloc_io_space(s, req->Attributes1, &req->BasePort1, |
| 686 | req->NumPorts1, req->IOAddrLines)) |
| 687 | return CS_IN_USE; |
| 688 | |
| 689 | if (req->NumPorts2) { |
| 690 | if (alloc_io_space(s, req->Attributes2, &req->BasePort2, |
| 691 | req->NumPorts2, req->IOAddrLines)) { |
| 692 | release_io_space(s, req->BasePort1, req->NumPorts1); |
| 693 | return CS_IN_USE; |
| 694 | } |
| 695 | } |
| 696 | |
| 697 | c->io = *req; |
| 698 | c->state |= CONFIG_IO_REQ; |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 699 | p_dev->_io = 1; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 700 | return CS_SUCCESS; |
| 701 | } /* pcmcia_request_io */ |
| 702 | EXPORT_SYMBOL(pcmcia_request_io); |
| 703 | |
| 704 | |
| 705 | /** pcmcia_request_irq |
| 706 | * |
| 707 | * Request_irq() reserves an irq for this client. |
| 708 | * |
| 709 | * Also, since Linux only reserves irq's when they are actually |
| 710 | * hooked, we don't guarantee that an irq will still be available |
| 711 | * when the configuration is locked. Now that I think about it, |
| 712 | * there might be a way to fix this using a dummy handler. |
| 713 | */ |
| 714 | |
| 715 | #ifdef CONFIG_PCMCIA_PROBE |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 716 | static irqreturn_t test_action(int cpl, void *dev_id) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 717 | { |
| 718 | return IRQ_NONE; |
| 719 | } |
| 720 | #endif |
| 721 | |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 722 | int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 723 | { |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 724 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 725 | config_t *c; |
| 726 | int ret = CS_IN_USE, irq = 0; |
Alan Cox | c533120 | 2006-05-16 16:16:44 +0100 | [diff] [blame] | 727 | int type; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 728 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 729 | if (!(s->state & SOCKET_PRESENT)) |
| 730 | return CS_NO_CARD; |
Dominik Brodowski | dbb22f0 | 2006-01-10 20:41:27 +0100 | [diff] [blame] | 731 | c = p_dev->function_config; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 732 | if (c->state & CONFIG_LOCKED) |
| 733 | return CS_CONFIGURATION_LOCKED; |
| 734 | if (c->state & CONFIG_IRQ_REQ) |
| 735 | return CS_IN_USE; |
| 736 | |
Alan Cox | c533120 | 2006-05-16 16:16:44 +0100 | [diff] [blame] | 737 | /* Decide what type of interrupt we are registering */ |
| 738 | type = 0; |
| 739 | if (s->functions > 1) /* All of this ought to be handled higher up */ |
Thomas Gleixner | dace145 | 2006-07-01 19:29:38 -0700 | [diff] [blame] | 740 | type = IRQF_SHARED; |
Alan Cox | c533120 | 2006-05-16 16:16:44 +0100 | [diff] [blame] | 741 | if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) |
Thomas Gleixner | dace145 | 2006-07-01 19:29:38 -0700 | [diff] [blame] | 742 | type = IRQF_SHARED; |
Alan Cox | c533120 | 2006-05-16 16:16:44 +0100 | [diff] [blame] | 743 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 744 | #ifdef CONFIG_PCMCIA_PROBE |
Alan Cox | 635416ef | 2008-06-16 14:35:15 +0200 | [diff] [blame] | 745 | |
| 746 | #ifdef IRQ_NOAUTOEN |
| 747 | /* if the underlying IRQ infrastructure allows for it, only allocate |
| 748 | * the IRQ, but do not enable it |
| 749 | */ |
| 750 | if (!(req->Attributes & IRQ_HANDLE_PRESENT)) |
| 751 | type |= IRQ_NOAUTOEN; |
| 752 | #endif /* IRQ_NOAUTOEN */ |
| 753 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 754 | if (s->irq.AssignedIRQ != 0) { |
| 755 | /* If the interrupt is already assigned, it must be the same */ |
| 756 | irq = s->irq.AssignedIRQ; |
| 757 | } else { |
| 758 | int try; |
| 759 | u32 mask = s->irq_mask; |
Dominik Brodowski | a1b274f | 2005-07-28 01:07:27 -0700 | [diff] [blame] | 760 | void *data = &p_dev->dev.driver; /* something unique to this device */ |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 761 | |
| 762 | for (try = 0; try < 64; try++) { |
| 763 | irq = try % 32; |
| 764 | |
| 765 | /* marked as available by driver, and not blocked by userspace? */ |
| 766 | if (!((mask >> irq) & 1)) |
| 767 | continue; |
| 768 | |
| 769 | /* avoid an IRQ which is already used by a PCMCIA card */ |
| 770 | if ((try < 32) && pcmcia_used_irq[irq]) |
| 771 | continue; |
| 772 | |
| 773 | /* register the correct driver, if possible, of check whether |
| 774 | * registering a dummy handle works, i.e. if the IRQ isn't |
| 775 | * marked as used by the kernel resource management core */ |
| 776 | ret = request_irq(irq, |
| 777 | (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action, |
Alan Cox | c533120 | 2006-05-16 16:16:44 +0100 | [diff] [blame] | 778 | type, |
Brice Goglin | bd65a68 | 2005-09-09 13:03:29 -0700 | [diff] [blame] | 779 | p_dev->devname, |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 780 | (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data); |
| 781 | if (!ret) { |
| 782 | if (!(req->Attributes & IRQ_HANDLE_PRESENT)) |
| 783 | free_irq(irq, data); |
| 784 | break; |
| 785 | } |
| 786 | } |
| 787 | } |
| 788 | #endif |
Daniel Ritz | c181e0e | 2005-09-09 13:03:25 -0700 | [diff] [blame] | 789 | /* only assign PCI irq if no IRQ already assigned */ |
| 790 | if (ret && !s->irq.AssignedIRQ) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 791 | if (!s->pci_irq) |
| 792 | return ret; |
Thomas Gleixner | dace145 | 2006-07-01 19:29:38 -0700 | [diff] [blame] | 793 | type = IRQF_SHARED; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 794 | irq = s->pci_irq; |
| 795 | } |
| 796 | |
Alan Cox | c533120 | 2006-05-16 16:16:44 +0100 | [diff] [blame] | 797 | if (ret && (req->Attributes & IRQ_HANDLE_PRESENT)) { |
| 798 | if (request_irq(irq, req->Handler, type, p_dev->devname, req->Instance)) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 799 | return CS_IN_USE; |
| 800 | } |
| 801 | |
Alan Cox | c533120 | 2006-05-16 16:16:44 +0100 | [diff] [blame] | 802 | /* Make sure the fact the request type was overridden is passed back */ |
Thomas Gleixner | dace145 | 2006-07-01 19:29:38 -0700 | [diff] [blame] | 803 | if (type == IRQF_SHARED && !(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) { |
Alan Cox | c533120 | 2006-05-16 16:16:44 +0100 | [diff] [blame] | 804 | req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING; |
| 805 | printk(KERN_WARNING "pcmcia: request for exclusive IRQ could not be fulfilled.\n"); |
| 806 | printk(KERN_WARNING "pcmcia: the driver needs updating to supported shared IRQ lines.\n"); |
| 807 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 808 | c->irq.Attributes = req->Attributes; |
| 809 | s->irq.AssignedIRQ = req->AssignedIRQ = irq; |
| 810 | s->irq.Config++; |
| 811 | |
| 812 | c->state |= CONFIG_IRQ_REQ; |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 813 | p_dev->_irq = 1; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 814 | |
| 815 | #ifdef CONFIG_PCMCIA_PROBE |
| 816 | pcmcia_used_irq[irq]++; |
| 817 | #endif |
| 818 | |
| 819 | return CS_SUCCESS; |
| 820 | } /* pcmcia_request_irq */ |
| 821 | EXPORT_SYMBOL(pcmcia_request_irq); |
| 822 | |
| 823 | |
| 824 | /** pcmcia_request_window |
| 825 | * |
| 826 | * Request_window() establishes a mapping between card memory space |
| 827 | * and system memory space. |
| 828 | */ |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 829 | int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_handle_t *wh) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 830 | { |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 831 | struct pcmcia_socket *s = (*p_dev)->socket; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 832 | window_t *win; |
| 833 | u_long align; |
| 834 | int w; |
| 835 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 836 | if (!(s->state & SOCKET_PRESENT)) |
| 837 | return CS_NO_CARD; |
| 838 | if (req->Attributes & (WIN_PAGED | WIN_SHARED)) |
| 839 | return CS_BAD_ATTRIBUTE; |
| 840 | |
| 841 | /* Window size defaults to smallest available */ |
| 842 | if (req->Size == 0) |
| 843 | req->Size = s->map_size; |
| 844 | align = (((s->features & SS_CAP_MEM_ALIGN) || |
| 845 | (req->Attributes & WIN_STRICT_ALIGN)) ? |
| 846 | req->Size : s->map_size); |
| 847 | if (req->Size & (s->map_size-1)) |
| 848 | return CS_BAD_SIZE; |
| 849 | if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) || |
| 850 | (req->Base & (align-1))) |
| 851 | return CS_BAD_BASE; |
| 852 | if (req->Base) |
| 853 | align = 0; |
| 854 | |
| 855 | /* Allocate system memory window */ |
| 856 | for (w = 0; w < MAX_WIN; w++) |
| 857 | if (!(s->state & SOCKET_WIN_REQ(w))) break; |
| 858 | if (w == MAX_WIN) |
| 859 | return CS_OUT_OF_RESOURCE; |
| 860 | |
| 861 | win = &s->win[w]; |
| 862 | win->magic = WINDOW_MAGIC; |
| 863 | win->index = w; |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 864 | win->handle = *p_dev; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 865 | win->sock = s; |
| 866 | |
| 867 | if (!(s->features & SS_CAP_STATIC_MAP)) { |
| 868 | win->ctl.res = pcmcia_find_mem_region(req->Base, req->Size, align, |
| 869 | (req->Attributes & WIN_MAP_BELOW_1MB), s); |
| 870 | if (!win->ctl.res) |
| 871 | return CS_IN_USE; |
| 872 | } |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 873 | (*p_dev)->_win |= CLIENT_WIN_REQ(w); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 874 | |
| 875 | /* Configure the socket controller */ |
| 876 | win->ctl.map = w+1; |
| 877 | win->ctl.flags = 0; |
| 878 | win->ctl.speed = req->AccessSpeed; |
| 879 | if (req->Attributes & WIN_MEMORY_TYPE) |
| 880 | win->ctl.flags |= MAP_ATTRIB; |
| 881 | if (req->Attributes & WIN_ENABLE) |
| 882 | win->ctl.flags |= MAP_ACTIVE; |
| 883 | if (req->Attributes & WIN_DATA_WIDTH_16) |
| 884 | win->ctl.flags |= MAP_16BIT; |
| 885 | if (req->Attributes & WIN_USE_WAIT) |
| 886 | win->ctl.flags |= MAP_USE_WAIT; |
| 887 | win->ctl.card_start = 0; |
| 888 | if (s->ops->set_mem_map(s, &win->ctl) != 0) |
| 889 | return CS_BAD_ARGS; |
| 890 | s->state |= SOCKET_WIN_REQ(w); |
| 891 | |
| 892 | /* Return window handle */ |
| 893 | if (s->features & SS_CAP_STATIC_MAP) { |
| 894 | req->Base = win->ctl.static_start; |
| 895 | } else { |
| 896 | req->Base = win->ctl.res->start; |
| 897 | } |
| 898 | *wh = win; |
| 899 | |
| 900 | return CS_SUCCESS; |
| 901 | } /* pcmcia_request_window */ |
| 902 | EXPORT_SYMBOL(pcmcia_request_window); |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 903 | |
| 904 | void pcmcia_disable_device(struct pcmcia_device *p_dev) { |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 905 | pcmcia_release_configuration(p_dev); |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 906 | pcmcia_release_io(p_dev, &p_dev->io); |
| 907 | pcmcia_release_irq(p_dev, &p_dev->irq); |
Dominik Brodowski | c1ac022 | 2008-06-14 18:51:06 +0200 | [diff] [blame] | 908 | if (p_dev->win) |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 909 | pcmcia_release_window(p_dev->win); |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 910 | } |
| 911 | EXPORT_SYMBOL(pcmcia_disable_device); |