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> |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 23 | #include <linux/netdevice.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 24 | #include <linux/slab.h> |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 25 | |
Dominik Brodowski | 6f0f38c | 2010-04-08 20:33:16 +0200 | [diff] [blame^] | 26 | #include <asm/irq.h> |
| 27 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 28 | #include <pcmcia/cs_types.h> |
| 29 | #include <pcmcia/ss.h> |
| 30 | #include <pcmcia/cs.h> |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 31 | #include <pcmcia/cistpl.h> |
| 32 | #include <pcmcia/cisreg.h> |
| 33 | #include <pcmcia/ds.h> |
| 34 | |
| 35 | #include "cs_internal.h" |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 36 | |
| 37 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 38 | /* Access speed for IO windows */ |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 39 | static int io_speed; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 40 | module_param(io_speed, int, 0444); |
| 41 | |
| 42 | |
Dominik Brodowski | f9c316f | 2010-01-06 11:32:22 +0100 | [diff] [blame] | 43 | static int pcmcia_adjust_io_region(struct resource *res, unsigned long start, |
| 44 | unsigned long end, struct pcmcia_socket *s) |
| 45 | { |
| 46 | if (s->resource_ops->adjust_io_region) |
| 47 | return s->resource_ops->adjust_io_region(res, start, end, s); |
| 48 | return -ENOMEM; |
| 49 | } |
| 50 | |
| 51 | static struct resource *pcmcia_find_io_region(unsigned long base, int num, |
| 52 | unsigned long align, |
| 53 | struct pcmcia_socket *s) |
| 54 | { |
| 55 | if (s->resource_ops->find_io) |
| 56 | return s->resource_ops->find_io(base, num, align, s); |
| 57 | return NULL; |
| 58 | } |
| 59 | |
Dominik Brodowski | a3ac9af | 2010-01-06 14:03:03 +0100 | [diff] [blame] | 60 | int pcmcia_validate_mem(struct pcmcia_socket *s) |
| 61 | { |
| 62 | if (s->resource_ops->validate_mem) |
| 63 | return s->resource_ops->validate_mem(s); |
| 64 | /* if there is no callback, we can assume that everything is OK */ |
| 65 | return 0; |
| 66 | } |
| 67 | |
| 68 | struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align, |
| 69 | int low, struct pcmcia_socket *s) |
| 70 | { |
| 71 | if (s->resource_ops->find_mem) |
| 72 | return s->resource_ops->find_mem(base, num, align, low, s); |
| 73 | return NULL; |
| 74 | } |
| 75 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 76 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 77 | /** alloc_io_space |
| 78 | * |
| 79 | * Special stuff for managing IO windows, because they are scarce |
| 80 | */ |
| 81 | |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 82 | static int alloc_io_space(struct pcmcia_socket *s, u_int attr, |
| 83 | unsigned int *base, unsigned int num, u_int lines) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 84 | { |
| 85 | int i; |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 86 | unsigned int try, align; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 87 | |
| 88 | align = (*base) ? (lines ? 1<<lines : 0) : 1; |
| 89 | if (align && (align < num)) { |
| 90 | if (*base) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 91 | dev_dbg(&s->dev, "odd IO request: num %#x align %#x\n", |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 92 | num, align); |
| 93 | align = 0; |
| 94 | } else |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 95 | while (align && (align < num)) |
| 96 | align <<= 1; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 97 | } |
| 98 | if (*base & ~(align-1)) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 99 | dev_dbg(&s->dev, "odd IO request: base %#x align %#x\n", |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 100 | *base, align); |
| 101 | align = 0; |
| 102 | } |
| 103 | if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) { |
| 104 | *base = s->io_offset | (*base & 0x0fff); |
| 105 | return 0; |
| 106 | } |
| 107 | /* Check for an already-allocated window that must conflict with |
| 108 | * what was asked for. It is a hack because it does not catch all |
| 109 | * potential conflicts, just the most obvious ones. |
| 110 | */ |
| 111 | for (i = 0; i < MAX_IO_WIN; i++) |
Kaustav Majumdar | 4708b5f | 2006-10-20 14:44:09 -0700 | [diff] [blame] | 112 | if ((s->io[i].res) && *base && |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 113 | ((s->io[i].res->start & (align-1)) == *base)) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 114 | return 1; |
| 115 | for (i = 0; i < MAX_IO_WIN; i++) { |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 116 | if (!s->io[i].res) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 117 | s->io[i].res = pcmcia_find_io_region(*base, num, align, s); |
| 118 | if (s->io[i].res) { |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 119 | *base = s->io[i].res->start; |
| 120 | s->io[i].res->flags = (s->io[i].res->flags & ~IORESOURCE_BITS) | (attr & IORESOURCE_BITS); |
| 121 | s->io[i].InUse = num; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 122 | break; |
| 123 | } else |
| 124 | return 1; |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 125 | } else if ((s->io[i].res->flags & IORESOURCE_BITS) != (attr & IORESOURCE_BITS)) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 126 | continue; |
| 127 | /* Try to extend top of window */ |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 128 | try = s->io[i].res->end + 1; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 129 | if ((*base == 0) || (*base == try)) |
| 130 | if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start, |
| 131 | s->io[i].res->end + num, s) == 0) { |
| 132 | *base = try; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 133 | s->io[i].InUse += num; |
| 134 | break; |
| 135 | } |
| 136 | /* Try to extend bottom of window */ |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 137 | try = s->io[i].res->start - num; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 138 | if ((*base == 0) || (*base == try)) |
| 139 | if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num, |
| 140 | s->io[i].res->end, s) == 0) { |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 141 | *base = try; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 142 | s->io[i].InUse += num; |
| 143 | break; |
| 144 | } |
| 145 | } |
| 146 | return (i == MAX_IO_WIN); |
| 147 | } /* alloc_io_space */ |
| 148 | |
| 149 | |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 150 | static void release_io_space(struct pcmcia_socket *s, unsigned int base, |
| 151 | unsigned int num) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 152 | { |
| 153 | int i; |
| 154 | |
| 155 | for (i = 0; i < MAX_IO_WIN; i++) { |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 156 | if (!s->io[i].res) |
| 157 | continue; |
| 158 | if ((s->io[i].res->start <= base) && |
| 159 | (s->io[i].res->end >= base+num-1)) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 160 | s->io[i].InUse -= num; |
| 161 | /* Free the window if no one else is using it */ |
| 162 | if (s->io[i].InUse == 0) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 163 | release_resource(s->io[i].res); |
| 164 | kfree(s->io[i].res); |
| 165 | s->io[i].res = NULL; |
| 166 | } |
| 167 | } |
| 168 | } |
| 169 | } /* release_io_space */ |
| 170 | |
| 171 | |
| 172 | /** pccard_access_configuration_register |
| 173 | * |
| 174 | * Access_configuration_register() reads and writes configuration |
| 175 | * registers in attribute memory. Memory window 0 is reserved for |
| 176 | * this and the tuple reading services. |
| 177 | */ |
| 178 | |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 179 | int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 180 | conf_reg_t *reg) |
| 181 | { |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 182 | struct pcmcia_socket *s; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 183 | config_t *c; |
| 184 | int addr; |
| 185 | u_char val; |
| 186 | |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 187 | if (!p_dev || !p_dev->function_config) |
Dominik Brodowski | 3939c1ef | 2008-08-03 11:10:56 +0200 | [diff] [blame] | 188 | return -EINVAL; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 189 | |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 190 | s = p_dev->socket; |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 191 | |
| 192 | mutex_lock(&s->ops_mutex); |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 193 | c = p_dev->function_config; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 194 | |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 195 | if (!(c->state & CONFIG_LOCKED)) { |
| 196 | dev_dbg(&s->dev, "Configuration isnt't locked\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 197 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 943f70f | 2008-08-03 11:23:42 +0200 | [diff] [blame] | 198 | return -EACCES; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 199 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 200 | |
| 201 | addr = (c->ConfigBase + reg->Offset) >> 1; |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 202 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 203 | |
| 204 | switch (reg->Action) { |
| 205 | case CS_READ: |
| 206 | pcmcia_read_cis_mem(s, 1, addr, 1, &val); |
| 207 | reg->Value = val; |
| 208 | break; |
| 209 | case CS_WRITE: |
| 210 | val = reg->Value; |
| 211 | pcmcia_write_cis_mem(s, 1, addr, 1, &val); |
| 212 | break; |
| 213 | default: |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 214 | dev_dbg(&s->dev, "Invalid conf register request\n"); |
Dominik Brodowski | 926c540 | 2008-08-03 12:15:11 +0200 | [diff] [blame] | 215 | return -EINVAL; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 216 | break; |
| 217 | } |
Dominik Brodowski | 4c89e88 | 2008-08-03 10:07:45 +0200 | [diff] [blame] | 218 | return 0; |
Dominik Brodowski | 855cdf1 | 2006-01-10 20:48:59 +0100 | [diff] [blame] | 219 | } /* pcmcia_access_configuration_register */ |
Dominik Brodowski | 3448139 | 2005-06-27 16:28:54 -0700 | [diff] [blame] | 220 | EXPORT_SYMBOL(pcmcia_access_configuration_register); |
| 221 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 222 | |
Magnus Damm | 868575d | 2006-12-13 19:46:43 +0900 | [diff] [blame] | 223 | int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh, |
| 224 | memreq_t *req) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 225 | { |
Magnus Damm | 0bdf9b3 | 2006-12-13 19:46:53 +0900 | [diff] [blame] | 226 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 227 | int ret; |
Magnus Damm | 868575d | 2006-12-13 19:46:43 +0900 | [diff] [blame] | 228 | |
Magnus Damm | 0bdf9b3 | 2006-12-13 19:46:53 +0900 | [diff] [blame] | 229 | wh--; |
| 230 | if (wh >= MAX_WIN) |
Dominik Brodowski | ffb8da2 | 2008-08-03 11:18:00 +0200 | [diff] [blame] | 231 | return -EINVAL; |
Dominik Brodowski | 610e237 | 2008-08-03 11:58:53 +0200 | [diff] [blame] | 232 | if (req->Page != 0) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 233 | dev_dbg(&s->dev, "failure: requested page is zero\n"); |
Dominik Brodowski | 610e237 | 2008-08-03 11:58:53 +0200 | [diff] [blame] | 234 | return -EINVAL; |
| 235 | } |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 236 | mutex_lock(&s->ops_mutex); |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 237 | s->win[wh].card_start = req->CardOffset; |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 238 | ret = s->ops->set_mem_map(s, &s->win[wh]); |
| 239 | if (ret) |
| 240 | dev_warn(&s->dev, "failed to set_mem_map\n"); |
| 241 | mutex_unlock(&s->ops_mutex); |
| 242 | return ret; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 243 | } /* pcmcia_map_mem_page */ |
| 244 | EXPORT_SYMBOL(pcmcia_map_mem_page); |
| 245 | |
| 246 | |
| 247 | /** pcmcia_modify_configuration |
| 248 | * |
| 249 | * Modify a locked socket configuration |
| 250 | */ |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 251 | int pcmcia_modify_configuration(struct pcmcia_device *p_dev, |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 252 | modconf_t *mod) |
| 253 | { |
| 254 | struct pcmcia_socket *s; |
| 255 | config_t *c; |
Jiri Slaby | 4e06e24 | 2010-03-16 15:57:44 +0100 | [diff] [blame] | 256 | int ret; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 257 | |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 258 | s = p_dev->socket; |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 259 | |
| 260 | mutex_lock(&s->ops_mutex); |
Dominik Brodowski | dbb22f0 | 2006-01-10 20:41:27 +0100 | [diff] [blame] | 261 | c = p_dev->function_config; |
| 262 | |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 263 | if (!(s->state & SOCKET_PRESENT)) { |
| 264 | dev_dbg(&s->dev, "No card present\n"); |
Jiri Slaby | 4e06e24 | 2010-03-16 15:57:44 +0100 | [diff] [blame] | 265 | ret = -ENODEV; |
| 266 | goto unlock; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 267 | } |
| 268 | if (!(c->state & CONFIG_LOCKED)) { |
| 269 | dev_dbg(&s->dev, "Configuration isnt't locked\n"); |
Jiri Slaby | 4e06e24 | 2010-03-16 15:57:44 +0100 | [diff] [blame] | 270 | ret = -EACCES; |
| 271 | goto unlock; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 272 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 273 | |
Dominik Brodowski | 0cb3c49 | 2010-03-06 20:42:35 +0100 | [diff] [blame] | 274 | if (mod->Attributes & (CONF_IRQ_CHANGE_VALID | CONF_VCC_CHANGE_VALID)) { |
| 275 | dev_dbg(&s->dev, |
| 276 | "changing Vcc or IRQ is not allowed at this time\n"); |
Jiri Slaby | 4e06e24 | 2010-03-16 15:57:44 +0100 | [diff] [blame] | 277 | ret = -EINVAL; |
| 278 | goto unlock; |
Dominik Brodowski | d8b0a49 | 2008-08-03 10:56:13 +0200 | [diff] [blame] | 279 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 280 | |
| 281 | /* We only allow changing Vpp1 and Vpp2 to the same value */ |
| 282 | if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) && |
| 283 | (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { |
Ilpo Järvinen | 60df3de8 | 2008-10-30 13:02:54 +0200 | [diff] [blame] | 284 | if (mod->Vpp1 != mod->Vpp2) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 285 | dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n"); |
Jiri Slaby | 4e06e24 | 2010-03-16 15:57:44 +0100 | [diff] [blame] | 286 | ret = -EINVAL; |
| 287 | goto unlock; |
Ilpo Järvinen | 60df3de8 | 2008-10-30 13:02:54 +0200 | [diff] [blame] | 288 | } |
Dominik Brodowski | 71ed90d | 2005-09-09 13:03:27 -0700 | [diff] [blame] | 289 | s->socket.Vpp = mod->Vpp1; |
Dominik Brodowski | d8b0a49 | 2008-08-03 10:56:13 +0200 | [diff] [blame] | 290 | if (s->ops->set_socket(s, &s->socket)) { |
| 291 | dev_printk(KERN_WARNING, &s->dev, |
| 292 | "Unable to set VPP\n"); |
Jiri Slaby | 4e06e24 | 2010-03-16 15:57:44 +0100 | [diff] [blame] | 293 | ret = -EIO; |
| 294 | goto unlock; |
Dominik Brodowski | d8b0a49 | 2008-08-03 10:56:13 +0200 | [diff] [blame] | 295 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 296 | } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) || |
Dominik Brodowski | d8b0a49 | 2008-08-03 10:56:13 +0200 | [diff] [blame] | 297 | (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 298 | dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n"); |
Jiri Slaby | 4e06e24 | 2010-03-16 15:57:44 +0100 | [diff] [blame] | 299 | ret = -EINVAL; |
| 300 | goto unlock; |
Dominik Brodowski | d8b0a49 | 2008-08-03 10:56:13 +0200 | [diff] [blame] | 301 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 302 | |
Dominik Brodowski | 4bbed52 | 2006-01-15 11:18:12 +0100 | [diff] [blame] | 303 | if (mod->Attributes & CONF_IO_CHANGE_WIDTH) { |
| 304 | pccard_io_map io_off = { 0, 0, 0, 0, 1 }; |
| 305 | pccard_io_map io_on; |
| 306 | int i; |
| 307 | |
| 308 | io_on.speed = io_speed; |
| 309 | for (i = 0; i < MAX_IO_WIN; i++) { |
| 310 | if (!s->io[i].res) |
| 311 | continue; |
| 312 | io_off.map = i; |
| 313 | io_on.map = i; |
| 314 | |
| 315 | io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8; |
| 316 | io_on.start = s->io[i].res->start; |
| 317 | io_on.stop = s->io[i].res->end; |
| 318 | |
| 319 | s->ops->set_io_map(s, &io_off); |
| 320 | mdelay(40); |
| 321 | s->ops->set_io_map(s, &io_on); |
| 322 | } |
| 323 | } |
Jiri Slaby | 4e06e24 | 2010-03-16 15:57:44 +0100 | [diff] [blame] | 324 | ret = 0; |
| 325 | unlock: |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 326 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 4bbed52 | 2006-01-15 11:18:12 +0100 | [diff] [blame] | 327 | |
Jiri Slaby | 4e06e24 | 2010-03-16 15:57:44 +0100 | [diff] [blame] | 328 | return ret; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 329 | } /* modify_configuration */ |
| 330 | EXPORT_SYMBOL(pcmcia_modify_configuration); |
| 331 | |
| 332 | |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 333 | int pcmcia_release_configuration(struct pcmcia_device *p_dev) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 334 | { |
| 335 | pccard_io_map io = { 0, 0, 0, 0, 1 }; |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 336 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 337 | config_t *c; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 338 | int i; |
| 339 | |
Dominik Brodowski | 9e86749c | 2010-01-16 00:26:33 +0100 | [diff] [blame] | 340 | mutex_lock(&s->ops_mutex); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 341 | c = p_dev->function_config; |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 342 | if (p_dev->_locked) { |
| 343 | p_dev->_locked = 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 344 | if (--(s->lock_count) == 0) { |
| 345 | s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */ |
| 346 | s->socket.Vpp = 0; |
| 347 | s->socket.io_irq = 0; |
| 348 | s->ops->set_socket(s, &s->socket); |
| 349 | } |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 350 | } |
| 351 | if (c->state & CONFIG_LOCKED) { |
| 352 | c->state &= ~CONFIG_LOCKED; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 353 | if (c->state & CONFIG_IO_REQ) |
| 354 | for (i = 0; i < MAX_IO_WIN; i++) { |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 355 | if (!s->io[i].res) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 356 | continue; |
| 357 | s->io[i].Config--; |
| 358 | if (s->io[i].Config != 0) |
| 359 | continue; |
| 360 | io.map = i; |
| 361 | s->ops->set_io_map(s, &io); |
| 362 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 363 | } |
Dominik Brodowski | 9e86749c | 2010-01-16 00:26:33 +0100 | [diff] [blame] | 364 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 365 | |
Dominik Brodowski | 4c89e88 | 2008-08-03 10:07:45 +0200 | [diff] [blame] | 366 | return 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 367 | } /* pcmcia_release_configuration */ |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 368 | |
| 369 | |
| 370 | /** pcmcia_release_io |
| 371 | * |
| 372 | * Release_io() releases the I/O ranges allocated by a client. This |
| 373 | * may be invoked some time after a card ejection has already dumped |
| 374 | * the actual socket configuration, so if the client is "stale", we |
| 375 | * don't bother checking the port ranges against the current socket |
| 376 | * values. |
| 377 | */ |
Adrian Bunk | b4c8840 | 2006-01-18 23:53:13 -0800 | [diff] [blame] | 378 | 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] | 379 | { |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 380 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 381 | int ret = -EINVAL; |
| 382 | config_t *c; |
| 383 | |
| 384 | mutex_lock(&s->ops_mutex); |
| 385 | c = p_dev->function_config; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 386 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 387 | if (!p_dev->_io) |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 388 | goto out; |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 389 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 390 | p_dev->_io = 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 391 | |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 392 | if ((c->io.BasePort1 != req->BasePort1) || |
| 393 | (c->io.NumPorts1 != req->NumPorts1) || |
| 394 | (c->io.BasePort2 != req->BasePort2) || |
| 395 | (c->io.NumPorts2 != req->NumPorts2)) |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 396 | goto out; |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 397 | |
| 398 | c->state &= ~CONFIG_IO_REQ; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 399 | |
| 400 | release_io_space(s, req->BasePort1, req->NumPorts1); |
| 401 | if (req->NumPorts2) |
| 402 | release_io_space(s, req->BasePort2, req->NumPorts2); |
| 403 | |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 404 | out: |
| 405 | mutex_unlock(&s->ops_mutex); |
| 406 | |
| 407 | return ret; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 408 | } /* pcmcia_release_io */ |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 409 | |
| 410 | |
Adrian Bunk | b4c8840 | 2006-01-18 23:53:13 -0800 | [diff] [blame] | 411 | 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] | 412 | { |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 413 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 414 | config_t *c; |
| 415 | int ret = -EINVAL; |
| 416 | |
| 417 | mutex_lock(&s->ops_mutex); |
| 418 | |
| 419 | c = p_dev->function_config; |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 420 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 421 | if (!p_dev->_irq) |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 422 | goto out; |
| 423 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 424 | p_dev->_irq = 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 425 | |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 426 | if (c->state & CONFIG_LOCKED) |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 427 | goto out; |
| 428 | |
Dominik Brodowski | 610e237 | 2008-08-03 11:58:53 +0200 | [diff] [blame] | 429 | if (c->irq.Attributes != req->Attributes) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 430 | dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 431 | goto out; |
Dominik Brodowski | 610e237 | 2008-08-03 11:58:53 +0200 | [diff] [blame] | 432 | } |
Dominik Brodowski | 69ba443 | 2008-08-03 12:10:53 +0200 | [diff] [blame] | 433 | if (s->irq.AssignedIRQ != req->AssignedIRQ) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 434 | dev_dbg(&s->dev, "IRQ must match assigned one\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 435 | goto out; |
Dominik Brodowski | 69ba443 | 2008-08-03 12:10:53 +0200 | [diff] [blame] | 436 | } |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 437 | if (--s->irq.Config == 0) { |
| 438 | c->state &= ~CONFIG_IRQ_REQ; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 439 | } |
| 440 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 441 | if (req->Handler) |
Dominik Brodowski | 5fa9167 | 2009-11-08 17:24:46 +0100 | [diff] [blame] | 442 | free_irq(req->AssignedIRQ, p_dev->priv); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 443 | |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 444 | ret = 0; |
| 445 | |
| 446 | out: |
Dominik Brodowski | 64d8d46 | 2010-01-16 01:14:38 +0100 | [diff] [blame] | 447 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 448 | |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 449 | return ret; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 450 | } /* pcmcia_release_irq */ |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 451 | |
| 452 | |
Magnus Damm | f5560da | 2006-12-13 19:46:38 +0900 | [diff] [blame] | 453 | int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh) |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 454 | { |
Magnus Damm | 0bdf9b3 | 2006-12-13 19:46:53 +0900 | [diff] [blame] | 455 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 456 | pccard_mem_map *win; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 457 | |
Magnus Damm | 0bdf9b3 | 2006-12-13 19:46:53 +0900 | [diff] [blame] | 458 | wh--; |
| 459 | if (wh >= MAX_WIN) |
Dominik Brodowski | ffb8da2 | 2008-08-03 11:18:00 +0200 | [diff] [blame] | 460 | return -EINVAL; |
Magnus Damm | 0bdf9b3 | 2006-12-13 19:46:53 +0900 | [diff] [blame] | 461 | |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 462 | mutex_lock(&s->ops_mutex); |
Magnus Damm | 0bdf9b3 | 2006-12-13 19:46:53 +0900 | [diff] [blame] | 463 | win = &s->win[wh]; |
| 464 | |
| 465 | if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) { |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 466 | dev_dbg(&s->dev, "not releasing unknown window\n"); |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 467 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | ffb8da2 | 2008-08-03 11:18:00 +0200 | [diff] [blame] | 468 | return -EINVAL; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 469 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 470 | |
| 471 | /* Shut down memory window */ |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 472 | win->flags &= ~MAP_ACTIVE; |
| 473 | s->ops->set_mem_map(s, win); |
Magnus Damm | 0bdf9b3 | 2006-12-13 19:46:53 +0900 | [diff] [blame] | 474 | s->state &= ~SOCKET_WIN_REQ(wh); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 475 | |
| 476 | /* Release system memory */ |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 477 | if (win->res) { |
| 478 | release_resource(win->res); |
| 479 | kfree(win->res); |
| 480 | win->res = NULL; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 481 | } |
Magnus Damm | 0bdf9b3 | 2006-12-13 19:46:53 +0900 | [diff] [blame] | 482 | p_dev->_win &= ~CLIENT_WIN_REQ(wh); |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 483 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 484 | |
Dominik Brodowski | 4c89e88 | 2008-08-03 10:07:45 +0200 | [diff] [blame] | 485 | return 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 486 | } /* pcmcia_release_window */ |
| 487 | EXPORT_SYMBOL(pcmcia_release_window); |
| 488 | |
| 489 | |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 490 | int pcmcia_request_configuration(struct pcmcia_device *p_dev, |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 491 | config_req_t *req) |
| 492 | { |
| 493 | int i; |
| 494 | u_int base; |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 495 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 496 | config_t *c; |
| 497 | pccard_io_map iomap; |
| 498 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 499 | if (!(s->state & SOCKET_PRESENT)) |
Joe Perches | d598de0 | 2009-06-28 09:26:41 -0700 | [diff] [blame] | 500 | return -ENODEV; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 501 | |
Dominik Brodowski | de6405e | 2008-08-03 10:47:59 +0200 | [diff] [blame] | 502 | if (req->IntType & INT_CARDBUS) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 503 | dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n"); |
Dominik Brodowski | de6405e | 2008-08-03 10:47:59 +0200 | [diff] [blame] | 504 | return -EINVAL; |
| 505 | } |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 506 | |
| 507 | mutex_lock(&s->ops_mutex); |
Dominik Brodowski | dbb22f0 | 2006-01-10 20:41:27 +0100 | [diff] [blame] | 508 | c = p_dev->function_config; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 509 | if (c->state & CONFIG_LOCKED) { |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 510 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 511 | dev_dbg(&s->dev, "Configuration is locked\n"); |
Dominik Brodowski | 943f70f | 2008-08-03 11:23:42 +0200 | [diff] [blame] | 512 | return -EACCES; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 513 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 514 | |
| 515 | /* Do power control. We don't allow changes in Vcc. */ |
Dominik Brodowski | 70294b4 | 2006-01-15 12:43:16 +0100 | [diff] [blame] | 516 | s->socket.Vpp = req->Vpp; |
Dominik Brodowski | d8b0a49 | 2008-08-03 10:56:13 +0200 | [diff] [blame] | 517 | if (s->ops->set_socket(s, &s->socket)) { |
Dominik Brodowski | 9e86749c | 2010-01-16 00:26:33 +0100 | [diff] [blame] | 518 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | d8b0a49 | 2008-08-03 10:56:13 +0200 | [diff] [blame] | 519 | dev_printk(KERN_WARNING, &s->dev, |
| 520 | "Unable to set socket state\n"); |
| 521 | return -EINVAL; |
| 522 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 523 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 524 | /* Pick memory or I/O card, DMA mode, interrupt */ |
| 525 | c->IntType = req->IntType; |
| 526 | c->Attributes = req->Attributes; |
| 527 | if (req->IntType & INT_MEMORY_AND_IO) |
| 528 | s->socket.flags |= SS_IOCARD; |
| 529 | if (req->IntType & INT_ZOOMED_VIDEO) |
| 530 | s->socket.flags |= SS_ZVCARD | SS_IOCARD; |
| 531 | if (req->Attributes & CONF_ENABLE_DMA) |
| 532 | s->socket.flags |= SS_DMA_MODE; |
| 533 | if (req->Attributes & CONF_ENABLE_SPKR) |
| 534 | s->socket.flags |= SS_SPKR_ENA; |
| 535 | if (req->Attributes & CONF_ENABLE_IRQ) |
| 536 | s->socket.io_irq = s->irq.AssignedIRQ; |
| 537 | else |
| 538 | s->socket.io_irq = 0; |
| 539 | s->ops->set_socket(s, &s->socket); |
| 540 | s->lock_count++; |
Dominik Brodowski | 9e86749c | 2010-01-16 00:26:33 +0100 | [diff] [blame] | 541 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 542 | |
| 543 | /* Set up CIS configuration registers */ |
| 544 | base = c->ConfigBase = req->ConfigBase; |
Dominik Brodowski | 1ae9c7d | 2006-01-10 20:40:40 +0100 | [diff] [blame] | 545 | c->CardValues = req->Present; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 546 | if (req->Present & PRESENT_COPY) { |
| 547 | c->Copy = req->Copy; |
| 548 | pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy); |
| 549 | } |
| 550 | if (req->Present & PRESENT_OPTION) { |
| 551 | if (s->functions == 1) { |
| 552 | c->Option = req->ConfigIndex & COR_CONFIG_MASK; |
| 553 | } else { |
| 554 | c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK; |
| 555 | c->Option |= COR_FUNC_ENA|COR_IREQ_ENA; |
| 556 | if (req->Present & PRESENT_IOBASE_0) |
| 557 | c->Option |= COR_ADDR_DECODE; |
| 558 | } |
| 559 | if (c->state & CONFIG_IRQ_REQ) |
| 560 | if (!(c->irq.Attributes & IRQ_FORCED_PULSE)) |
| 561 | c->Option |= COR_LEVEL_REQ; |
| 562 | pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option); |
| 563 | mdelay(40); |
| 564 | } |
| 565 | if (req->Present & PRESENT_STATUS) { |
| 566 | c->Status = req->Status; |
| 567 | pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status); |
| 568 | } |
| 569 | if (req->Present & PRESENT_PIN_REPLACE) { |
| 570 | c->Pin = req->Pin; |
| 571 | pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin); |
| 572 | } |
| 573 | if (req->Present & PRESENT_EXT_STATUS) { |
| 574 | c->ExtStatus = req->ExtStatus; |
| 575 | pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus); |
| 576 | } |
| 577 | if (req->Present & PRESENT_IOBASE_0) { |
| 578 | u_char b = c->io.BasePort1 & 0xff; |
| 579 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b); |
| 580 | b = (c->io.BasePort1 >> 8) & 0xff; |
| 581 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b); |
| 582 | } |
| 583 | if (req->Present & PRESENT_IOSIZE) { |
| 584 | u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1; |
| 585 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b); |
| 586 | } |
| 587 | |
| 588 | /* Configure I/O windows */ |
| 589 | if (c->state & CONFIG_IO_REQ) { |
Dominik Brodowski | 8533ee3 | 2010-01-12 23:52:19 +0100 | [diff] [blame] | 590 | mutex_lock(&s->ops_mutex); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 591 | iomap.speed = io_speed; |
| 592 | for (i = 0; i < MAX_IO_WIN; i++) |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 593 | if (s->io[i].res) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 594 | iomap.map = i; |
| 595 | iomap.flags = MAP_ACTIVE; |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 596 | switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) { |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 597 | case IO_DATA_PATH_WIDTH_16: |
| 598 | iomap.flags |= MAP_16BIT; break; |
| 599 | case IO_DATA_PATH_WIDTH_AUTO: |
| 600 | iomap.flags |= MAP_AUTOSZ; break; |
| 601 | default: |
| 602 | break; |
| 603 | } |
Dominik Brodowski | c7d0069 | 2006-01-15 08:04:43 +0100 | [diff] [blame] | 604 | iomap.start = s->io[i].res->start; |
| 605 | iomap.stop = s->io[i].res->end; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 606 | s->ops->set_io_map(s, &iomap); |
| 607 | s->io[i].Config++; |
| 608 | } |
Dominik Brodowski | 8533ee3 | 2010-01-12 23:52:19 +0100 | [diff] [blame] | 609 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | c->state |= CONFIG_LOCKED; |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 613 | p_dev->_locked = 1; |
Dominik Brodowski | 4c89e88 | 2008-08-03 10:07:45 +0200 | [diff] [blame] | 614 | return 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 615 | } /* pcmcia_request_configuration */ |
| 616 | EXPORT_SYMBOL(pcmcia_request_configuration); |
| 617 | |
| 618 | |
| 619 | /** pcmcia_request_io |
| 620 | * |
| 621 | * Request_io() reserves ranges of port addresses for a socket. |
| 622 | * I have not implemented range sharing or alias addressing. |
| 623 | */ |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 624 | 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] | 625 | { |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 626 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 627 | config_t *c; |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 628 | int ret = -EINVAL; |
| 629 | |
| 630 | mutex_lock(&s->ops_mutex); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 631 | |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 632 | if (!(s->state & SOCKET_PRESENT)) { |
| 633 | dev_dbg(&s->dev, "No card present\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 634 | goto out; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 635 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 636 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 637 | if (!req) |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 638 | goto out; |
| 639 | |
Dominik Brodowski | dbb22f0 | 2006-01-10 20:41:27 +0100 | [diff] [blame] | 640 | c = p_dev->function_config; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 641 | if (c->state & CONFIG_LOCKED) { |
| 642 | dev_dbg(&s->dev, "Configuration is locked\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 643 | goto out; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 644 | } |
Dominik Brodowski | f958095 | 2008-08-03 11:40:19 +0200 | [diff] [blame] | 645 | if (c->state & CONFIG_IO_REQ) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 646 | dev_dbg(&s->dev, "IO already configured\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 647 | goto out; |
Dominik Brodowski | f958095 | 2008-08-03 11:40:19 +0200 | [diff] [blame] | 648 | } |
Dominik Brodowski | 610e237 | 2008-08-03 11:58:53 +0200 | [diff] [blame] | 649 | if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 650 | dev_dbg(&s->dev, "bad attribute setting for IO region 1\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 651 | goto out; |
Dominik Brodowski | 610e237 | 2008-08-03 11:58:53 +0200 | [diff] [blame] | 652 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 653 | if ((req->NumPorts2 > 0) && |
Dominik Brodowski | 610e237 | 2008-08-03 11:58:53 +0200 | [diff] [blame] | 654 | (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 655 | dev_dbg(&s->dev, "bad attribute setting for IO region 2\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 656 | goto out; |
Dominik Brodowski | 610e237 | 2008-08-03 11:58:53 +0200 | [diff] [blame] | 657 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 658 | |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 659 | dev_dbg(&s->dev, "trying to allocate resource 1\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 660 | ret = alloc_io_space(s, req->Attributes1, &req->BasePort1, |
| 661 | req->NumPorts1, req->IOAddrLines); |
| 662 | if (ret) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 663 | dev_dbg(&s->dev, "allocation of resource 1 failed\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 664 | goto out; |
Dominik Brodowski | f958095 | 2008-08-03 11:40:19 +0200 | [diff] [blame] | 665 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 666 | |
| 667 | if (req->NumPorts2) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 668 | dev_dbg(&s->dev, "trying to allocate resource 2\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 669 | ret = alloc_io_space(s, req->Attributes2, &req->BasePort2, |
| 670 | req->NumPorts2, req->IOAddrLines); |
| 671 | if (ret) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 672 | dev_dbg(&s->dev, "allocation of resource 2 failed\n"); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 673 | release_io_space(s, req->BasePort1, req->NumPorts1); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 674 | goto out; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 675 | } |
| 676 | } |
| 677 | |
| 678 | c->io = *req; |
| 679 | c->state |= CONFIG_IO_REQ; |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 680 | p_dev->_io = 1; |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 681 | dev_dbg(&s->dev, "allocating resources succeeded: %d\n", ret); |
| 682 | |
| 683 | out: |
| 684 | mutex_unlock(&s->ops_mutex); |
| 685 | |
| 686 | return ret; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 687 | } /* pcmcia_request_io */ |
| 688 | EXPORT_SYMBOL(pcmcia_request_io); |
| 689 | |
| 690 | |
| 691 | /** pcmcia_request_irq |
| 692 | * |
| 693 | * Request_irq() reserves an irq for this client. |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 694 | */ |
| 695 | |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 696 | 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] | 697 | { |
Dominik Brodowski | 2bc5a9b | 2005-07-07 17:59:02 -0700 | [diff] [blame] | 698 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 699 | config_t *c; |
Dominik Brodowski | 6f0f38c | 2010-04-08 20:33:16 +0200 | [diff] [blame^] | 700 | int ret = -EINVAL, irq = p_dev->irq_v; |
| 701 | int type = IRQF_SHARED; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 702 | |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 703 | mutex_lock(&s->ops_mutex); |
| 704 | |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 705 | if (!(s->state & SOCKET_PRESENT)) { |
| 706 | dev_dbg(&s->dev, "No card present\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 707 | goto out; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 708 | } |
Dominik Brodowski | dbb22f0 | 2006-01-10 20:41:27 +0100 | [diff] [blame] | 709 | c = p_dev->function_config; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 710 | if (c->state & CONFIG_LOCKED) { |
| 711 | dev_dbg(&s->dev, "Configuration is locked\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 712 | goto out; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 713 | } |
Dominik Brodowski | f958095 | 2008-08-03 11:40:19 +0200 | [diff] [blame] | 714 | if (c->state & CONFIG_IRQ_REQ) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 715 | dev_dbg(&s->dev, "IRQ already configured\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 716 | goto out; |
Dominik Brodowski | f958095 | 2008-08-03 11:40:19 +0200 | [diff] [blame] | 717 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 718 | |
Dominik Brodowski | d3e03f4 | 2010-04-07 14:12:56 +0200 | [diff] [blame] | 719 | if (!irq) { |
Dominik Brodowski | 6f0f38c | 2010-04-08 20:33:16 +0200 | [diff] [blame^] | 720 | dev_dbg(&s->dev, "no IRQ available\n"); |
| 721 | goto out; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 722 | } |
| 723 | |
Dominik Brodowski | 6f0f38c | 2010-04-08 20:33:16 +0200 | [diff] [blame^] | 724 | if (!(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) { |
| 725 | req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING; |
| 726 | dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: " |
| 727 | "request for exclusive IRQ could not be fulfilled.\n"); |
| 728 | dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver " |
| 729 | "needs updating to supported shared IRQ lines.\n"); |
| 730 | } |
| 731 | |
| 732 | if (req->Handler) { |
Dominik Brodowski | f958095 | 2008-08-03 11:40:19 +0200 | [diff] [blame] | 733 | ret = request_irq(irq, req->Handler, type, |
Dominik Brodowski | 5fa9167 | 2009-11-08 17:24:46 +0100 | [diff] [blame] | 734 | p_dev->devname, p_dev->priv); |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 735 | if (ret) { |
| 736 | dev_printk(KERN_INFO, &s->dev, |
| 737 | "request_irq() failed\n"); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 738 | goto out; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 739 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 740 | } |
| 741 | |
| 742 | c->irq.Attributes = req->Attributes; |
Dominik Brodowski | 6f0f38c | 2010-04-08 20:33:16 +0200 | [diff] [blame^] | 743 | req->AssignedIRQ = irq; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 744 | s->irq.Config++; |
| 745 | |
| 746 | c->state |= CONFIG_IRQ_REQ; |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 747 | p_dev->_irq = 1; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 748 | |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 749 | ret = 0; |
| 750 | out: |
Dominik Brodowski | 9e86749c | 2010-01-16 00:26:33 +0100 | [diff] [blame] | 751 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 94a819f | 2010-01-17 18:31:34 +0100 | [diff] [blame] | 752 | return ret; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 753 | } /* pcmcia_request_irq */ |
| 754 | EXPORT_SYMBOL(pcmcia_request_irq); |
| 755 | |
| 756 | |
Dominik Brodowski | 6f0f38c | 2010-04-08 20:33:16 +0200 | [diff] [blame^] | 757 | #ifdef CONFIG_PCMCIA_PROBE |
| 758 | |
| 759 | /* mask of IRQs already reserved by other cards, we should avoid using them */ |
| 760 | static u8 pcmcia_used_irq[NR_IRQS]; |
| 761 | |
| 762 | static irqreturn_t test_action(int cpl, void *dev_id) |
| 763 | { |
| 764 | return IRQ_NONE; |
| 765 | } |
| 766 | |
| 767 | /** |
| 768 | * pcmcia_setup_isa_irq() - determine whether an ISA IRQ can be used |
| 769 | * @p_dev - the associated PCMCIA device |
| 770 | * |
| 771 | * locking note: must be called with ops_mutex locked. |
| 772 | */ |
| 773 | static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type) |
| 774 | { |
| 775 | struct pcmcia_socket *s = p_dev->socket; |
| 776 | unsigned int try, irq; |
| 777 | u32 mask = s->irq_mask; |
| 778 | int ret = -ENODEV; |
| 779 | |
| 780 | for (try = 0; try < 64; try++) { |
| 781 | irq = try % 32; |
| 782 | |
| 783 | /* marked as available by driver, not blocked by userspace? */ |
| 784 | if (!((mask >> irq) & 1)) |
| 785 | continue; |
| 786 | |
| 787 | /* avoid an IRQ which is already used by another PCMCIA card */ |
| 788 | if ((try < 32) && pcmcia_used_irq[irq]) |
| 789 | continue; |
| 790 | |
| 791 | /* register the correct driver, if possible, to check whether |
| 792 | * registering a dummy handle works, i.e. if the IRQ isn't |
| 793 | * marked as used by the kernel resource management core */ |
| 794 | ret = request_irq(irq, test_action, type, p_dev->devname, |
| 795 | p_dev); |
| 796 | if (!ret) { |
| 797 | free_irq(irq, p_dev); |
| 798 | p_dev->irq_v = s->irq.AssignedIRQ = irq; |
| 799 | pcmcia_used_irq[irq]++; |
| 800 | break; |
| 801 | } |
| 802 | } |
| 803 | |
| 804 | return ret; |
| 805 | } |
| 806 | |
| 807 | void pcmcia_cleanup_irq(struct pcmcia_socket *s) |
| 808 | { |
| 809 | pcmcia_used_irq[s->irq.AssignedIRQ]--; |
| 810 | s->irq.AssignedIRQ = 0; |
| 811 | } |
| 812 | |
| 813 | #else /* CONFIG_PCMCIA_PROBE */ |
| 814 | |
| 815 | static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type) |
| 816 | { |
| 817 | return -EINVAL; |
| 818 | } |
| 819 | |
| 820 | void pcmcia_cleanup_irq(struct pcmcia_socket *s) |
| 821 | { |
| 822 | s->irq.AssignedIRQ = 0; |
| 823 | return; |
| 824 | } |
| 825 | |
| 826 | #endif /* CONFIG_PCMCIA_PROBE */ |
| 827 | |
| 828 | |
| 829 | /** |
| 830 | * pcmcia_setup_irq() - determine IRQ to be used for device |
| 831 | * @p_dev - the associated PCMCIA device |
| 832 | * |
| 833 | * locking note: must be called with ops_mutex locked. |
| 834 | */ |
| 835 | int pcmcia_setup_irq(struct pcmcia_device *p_dev) |
| 836 | { |
| 837 | struct pcmcia_socket *s = p_dev->socket; |
| 838 | |
| 839 | if (p_dev->irq_v) |
| 840 | return 0; |
| 841 | |
| 842 | /* already assigned? */ |
| 843 | if (s->irq.AssignedIRQ) { |
| 844 | p_dev->irq_v = s->irq.AssignedIRQ; |
| 845 | return 0; |
| 846 | } |
| 847 | |
| 848 | /* prefer an exclusive ISA irq */ |
| 849 | if (!pcmcia_setup_isa_irq(p_dev, 0)) |
| 850 | return 0; |
| 851 | |
| 852 | /* but accept a shared ISA irq */ |
| 853 | if (!pcmcia_setup_isa_irq(p_dev, IRQF_SHARED)) |
| 854 | return 0; |
| 855 | |
| 856 | /* but use the PCI irq otherwise */ |
| 857 | if (s->pci_irq) { |
| 858 | p_dev->irq_v = s->irq.AssignedIRQ = s->pci_irq; |
| 859 | return 0; |
| 860 | } |
| 861 | |
| 862 | return -EINVAL; |
| 863 | } |
| 864 | |
| 865 | |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 866 | /** pcmcia_request_window |
| 867 | * |
| 868 | * Request_window() establishes a mapping between card memory space |
| 869 | * and system memory space. |
| 870 | */ |
Dominik Brodowski | 6838b03 | 2009-11-03 01:31:52 +0100 | [diff] [blame] | 871 | 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] | 872 | { |
Dominik Brodowski | 6838b03 | 2009-11-03 01:31:52 +0100 | [diff] [blame] | 873 | struct pcmcia_socket *s = p_dev->socket; |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 874 | pccard_mem_map *win; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 875 | u_long align; |
| 876 | int w; |
| 877 | |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 878 | if (!(s->state & SOCKET_PRESENT)) { |
| 879 | dev_dbg(&s->dev, "No card present\n"); |
Dominik Brodowski | 3939c1ef | 2008-08-03 11:10:56 +0200 | [diff] [blame] | 880 | return -ENODEV; |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 881 | } |
Dominik Brodowski | 610e237 | 2008-08-03 11:58:53 +0200 | [diff] [blame] | 882 | if (req->Attributes & (WIN_PAGED | WIN_SHARED)) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 883 | dev_dbg(&s->dev, "bad attribute setting for iomem region\n"); |
Dominik Brodowski | 610e237 | 2008-08-03 11:58:53 +0200 | [diff] [blame] | 884 | return -EINVAL; |
| 885 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 886 | |
| 887 | /* Window size defaults to smallest available */ |
| 888 | if (req->Size == 0) |
| 889 | req->Size = s->map_size; |
| 890 | align = (((s->features & SS_CAP_MEM_ALIGN) || |
| 891 | (req->Attributes & WIN_STRICT_ALIGN)) ? |
| 892 | req->Size : s->map_size); |
Dominik Brodowski | 69ba443 | 2008-08-03 12:10:53 +0200 | [diff] [blame] | 893 | if (req->Size & (s->map_size-1)) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 894 | dev_dbg(&s->dev, "invalid map size\n"); |
Dominik Brodowski | 69ba443 | 2008-08-03 12:10:53 +0200 | [diff] [blame] | 895 | return -EINVAL; |
| 896 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 897 | if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) || |
Dominik Brodowski | 69ba443 | 2008-08-03 12:10:53 +0200 | [diff] [blame] | 898 | (req->Base & (align-1))) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 899 | dev_dbg(&s->dev, "invalid base address\n"); |
Dominik Brodowski | 69ba443 | 2008-08-03 12:10:53 +0200 | [diff] [blame] | 900 | return -EINVAL; |
| 901 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 902 | if (req->Base) |
| 903 | align = 0; |
| 904 | |
| 905 | /* Allocate system memory window */ |
| 906 | for (w = 0; w < MAX_WIN; w++) |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 907 | if (!(s->state & SOCKET_WIN_REQ(w))) |
| 908 | break; |
Dominik Brodowski | f958095 | 2008-08-03 11:40:19 +0200 | [diff] [blame] | 909 | if (w == MAX_WIN) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 910 | dev_dbg(&s->dev, "all windows are used already\n"); |
Dominik Brodowski | f958095 | 2008-08-03 11:40:19 +0200 | [diff] [blame] | 911 | return -EINVAL; |
| 912 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 913 | |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 914 | mutex_lock(&s->ops_mutex); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 915 | win = &s->win[w]; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 916 | |
| 917 | if (!(s->features & SS_CAP_STATIC_MAP)) { |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 918 | win->res = pcmcia_find_mem_region(req->Base, req->Size, align, |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 919 | (req->Attributes & WIN_MAP_BELOW_1MB), s); |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 920 | if (!win->res) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 921 | dev_dbg(&s->dev, "allocating mem region failed\n"); |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 922 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | f958095 | 2008-08-03 11:40:19 +0200 | [diff] [blame] | 923 | return -EINVAL; |
| 924 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 925 | } |
Dominik Brodowski | 6838b03 | 2009-11-03 01:31:52 +0100 | [diff] [blame] | 926 | p_dev->_win |= CLIENT_WIN_REQ(w); |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 927 | |
| 928 | /* Configure the socket controller */ |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 929 | win->map = w+1; |
| 930 | win->flags = 0; |
| 931 | win->speed = req->AccessSpeed; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 932 | if (req->Attributes & WIN_MEMORY_TYPE) |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 933 | win->flags |= MAP_ATTRIB; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 934 | if (req->Attributes & WIN_ENABLE) |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 935 | win->flags |= MAP_ACTIVE; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 936 | if (req->Attributes & WIN_DATA_WIDTH_16) |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 937 | win->flags |= MAP_16BIT; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 938 | if (req->Attributes & WIN_USE_WAIT) |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 939 | win->flags |= MAP_USE_WAIT; |
| 940 | win->card_start = 0; |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 941 | |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 942 | if (s->ops->set_mem_map(s, win) != 0) { |
Dominik Brodowski | d50dbec | 2009-10-23 12:51:28 +0200 | [diff] [blame] | 943 | dev_dbg(&s->dev, "failed to set memory mapping\n"); |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 944 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 926c540 | 2008-08-03 12:15:11 +0200 | [diff] [blame] | 945 | return -EIO; |
| 946 | } |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 947 | s->state |= SOCKET_WIN_REQ(w); |
| 948 | |
| 949 | /* Return window handle */ |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 950 | if (s->features & SS_CAP_STATIC_MAP) |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 951 | req->Base = win->static_start; |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 952 | else |
Dominik Brodowski | 82f88e3 | 2009-11-03 01:16:12 +0100 | [diff] [blame] | 953 | req->Base = win->res->start; |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 954 | |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 955 | mutex_unlock(&s->ops_mutex); |
Magnus Damm | 0bdf9b3 | 2006-12-13 19:46:53 +0900 | [diff] [blame] | 956 | *wh = w + 1; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 957 | |
Dominik Brodowski | 4c89e88 | 2008-08-03 10:07:45 +0200 | [diff] [blame] | 958 | return 0; |
Dominik Brodowski | 1a8d466 | 2005-06-27 16:28:53 -0700 | [diff] [blame] | 959 | } /* pcmcia_request_window */ |
| 960 | EXPORT_SYMBOL(pcmcia_request_window); |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 961 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 962 | void pcmcia_disable_device(struct pcmcia_device *p_dev) |
| 963 | { |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 964 | pcmcia_release_configuration(p_dev); |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 965 | pcmcia_release_io(p_dev, &p_dev->io); |
| 966 | pcmcia_release_irq(p_dev, &p_dev->irq); |
Dominik Brodowski | c1ac022 | 2008-06-14 18:51:06 +0200 | [diff] [blame] | 967 | if (p_dev->win) |
Magnus Damm | f5560da | 2006-12-13 19:46:38 +0900 | [diff] [blame] | 968 | pcmcia_release_window(p_dev, p_dev->win); |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 969 | } |
| 970 | EXPORT_SYMBOL(pcmcia_disable_device); |
Dominik Brodowski | a804b57 | 2008-07-29 08:38:30 +0200 | [diff] [blame] | 971 | |
| 972 | |
| 973 | struct pcmcia_cfg_mem { |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 974 | struct pcmcia_device *p_dev; |
| 975 | void *priv_data; |
| 976 | int (*conf_check) (struct pcmcia_device *p_dev, |
| 977 | cistpl_cftable_entry_t *cfg, |
| 978 | cistpl_cftable_entry_t *dflt, |
| 979 | unsigned int vcc, |
| 980 | void *priv_data); |
Dominik Brodowski | a804b57 | 2008-07-29 08:38:30 +0200 | [diff] [blame] | 981 | cisparse_t parse; |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 982 | cistpl_cftable_entry_t dflt; |
Dominik Brodowski | a804b57 | 2008-07-29 08:38:30 +0200 | [diff] [blame] | 983 | }; |
| 984 | |
| 985 | /** |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 986 | * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config() |
| 987 | * |
| 988 | * pcmcia_do_loop_config() is the internal callback for the call from |
| 989 | * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred |
| 990 | * by a struct pcmcia_cfg_mem. |
| 991 | */ |
| 992 | static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv) |
| 993 | { |
| 994 | cistpl_cftable_entry_t *cfg = &parse->cftable_entry; |
| 995 | struct pcmcia_cfg_mem *cfg_mem = priv; |
| 996 | |
| 997 | /* default values */ |
| 998 | cfg_mem->p_dev->conf.ConfigIndex = cfg->index; |
| 999 | if (cfg->flags & CISTPL_CFTABLE_DEFAULT) |
| 1000 | cfg_mem->dflt = *cfg; |
| 1001 | |
| 1002 | return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt, |
| 1003 | cfg_mem->p_dev->socket->socket.Vcc, |
| 1004 | cfg_mem->priv_data); |
| 1005 | } |
| 1006 | |
| 1007 | /** |
Dominik Brodowski | a804b57 | 2008-07-29 08:38:30 +0200 | [diff] [blame] | 1008 | * pcmcia_loop_config() - loop over configuration options |
| 1009 | * @p_dev: the struct pcmcia_device which we need to loop for. |
| 1010 | * @conf_check: function to call for each configuration option. |
| 1011 | * It gets passed the struct pcmcia_device, the CIS data |
| 1012 | * describing the configuration option, and private data |
| 1013 | * being passed to pcmcia_loop_config() |
| 1014 | * @priv_data: private data to be passed to the conf_check function. |
| 1015 | * |
| 1016 | * pcmcia_loop_config() loops over all configuration options, and calls |
| 1017 | * the driver-specific conf_check() for each one, checking whether |
Wolfram Sang | 889c277 | 2009-07-29 14:25:37 +0200 | [diff] [blame] | 1018 | * it is a valid one. Returns 0 on success or errorcode otherwise. |
Dominik Brodowski | a804b57 | 2008-07-29 08:38:30 +0200 | [diff] [blame] | 1019 | */ |
| 1020 | int pcmcia_loop_config(struct pcmcia_device *p_dev, |
| 1021 | int (*conf_check) (struct pcmcia_device *p_dev, |
| 1022 | cistpl_cftable_entry_t *cfg, |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 1023 | cistpl_cftable_entry_t *dflt, |
Dominik Brodowski | ad913c1 | 2008-08-02 16:12:00 +0200 | [diff] [blame] | 1024 | unsigned int vcc, |
Dominik Brodowski | a804b57 | 2008-07-29 08:38:30 +0200 | [diff] [blame] | 1025 | void *priv_data), |
| 1026 | void *priv_data) |
| 1027 | { |
| 1028 | struct pcmcia_cfg_mem *cfg_mem; |
Wolfram Sang | 889c277 | 2009-07-29 14:25:37 +0200 | [diff] [blame] | 1029 | int ret; |
Dominik Brodowski | a804b57 | 2008-07-29 08:38:30 +0200 | [diff] [blame] | 1030 | |
| 1031 | cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL); |
| 1032 | if (cfg_mem == NULL) |
| 1033 | return -ENOMEM; |
| 1034 | |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 1035 | cfg_mem->p_dev = p_dev; |
| 1036 | cfg_mem->conf_check = conf_check; |
| 1037 | cfg_mem->priv_data = priv_data; |
Dominik Brodowski | ad913c1 | 2008-08-02 16:12:00 +0200 | [diff] [blame] | 1038 | |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 1039 | ret = pccard_loop_tuple(p_dev->socket, p_dev->func, |
| 1040 | CISTPL_CFTABLE_ENTRY, &cfg_mem->parse, |
| 1041 | cfg_mem, pcmcia_do_loop_config); |
Dominik Brodowski | a804b57 | 2008-07-29 08:38:30 +0200 | [diff] [blame] | 1042 | |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 1043 | kfree(cfg_mem); |
Dominik Brodowski | a804b57 | 2008-07-29 08:38:30 +0200 | [diff] [blame] | 1044 | return ret; |
| 1045 | } |
| 1046 | EXPORT_SYMBOL(pcmcia_loop_config); |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 1047 | |
| 1048 | |
| 1049 | struct pcmcia_loop_mem { |
| 1050 | struct pcmcia_device *p_dev; |
| 1051 | void *priv_data; |
| 1052 | int (*loop_tuple) (struct pcmcia_device *p_dev, |
| 1053 | tuple_t *tuple, |
| 1054 | void *priv_data); |
| 1055 | }; |
| 1056 | |
| 1057 | /** |
| 1058 | * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config() |
| 1059 | * |
| 1060 | * pcmcia_do_loop_tuple() is the internal callback for the call from |
| 1061 | * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred |
| 1062 | * by a struct pcmcia_cfg_mem. |
| 1063 | */ |
| 1064 | static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv) |
| 1065 | { |
| 1066 | struct pcmcia_loop_mem *loop = priv; |
| 1067 | |
| 1068 | return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data); |
| 1069 | }; |
| 1070 | |
| 1071 | /** |
| 1072 | * pcmcia_loop_tuple() - loop over tuples in the CIS |
| 1073 | * @p_dev: the struct pcmcia_device which we need to loop for. |
| 1074 | * @code: which CIS code shall we look for? |
| 1075 | * @priv_data: private data to be passed to the loop_tuple function. |
| 1076 | * @loop_tuple: function to call for each CIS entry of type @function. IT |
| 1077 | * gets passed the raw tuple and @priv_data. |
| 1078 | * |
| 1079 | * pcmcia_loop_tuple() loops over all CIS entries of type @function, and |
| 1080 | * calls the @loop_tuple function for each entry. If the call to @loop_tuple |
| 1081 | * returns 0, the loop exits. Returns 0 on success or errorcode otherwise. |
| 1082 | */ |
| 1083 | int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code, |
| 1084 | int (*loop_tuple) (struct pcmcia_device *p_dev, |
| 1085 | tuple_t *tuple, |
| 1086 | void *priv_data), |
| 1087 | void *priv_data) |
| 1088 | { |
| 1089 | struct pcmcia_loop_mem loop = { |
| 1090 | .p_dev = p_dev, |
| 1091 | .loop_tuple = loop_tuple, |
| 1092 | .priv_data = priv_data}; |
| 1093 | |
| 1094 | return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL, |
| 1095 | &loop, pcmcia_do_loop_tuple); |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 1096 | } |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 1097 | EXPORT_SYMBOL(pcmcia_loop_tuple); |
| 1098 | |
| 1099 | |
| 1100 | struct pcmcia_loop_get { |
| 1101 | size_t len; |
| 1102 | cisdata_t **buf; |
| 1103 | }; |
| 1104 | |
| 1105 | /** |
| 1106 | * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple() |
| 1107 | * |
| 1108 | * pcmcia_do_get_tuple() is the internal callback for the call from |
| 1109 | * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in |
| 1110 | * the first tuple, return 0 unconditionally. Create a memory buffer large |
| 1111 | * enough to hold the content of the tuple, and fill it with the tuple data. |
| 1112 | * The caller is responsible to free the buffer. |
| 1113 | */ |
| 1114 | static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple, |
| 1115 | void *priv) |
| 1116 | { |
| 1117 | struct pcmcia_loop_get *get = priv; |
| 1118 | |
| 1119 | *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL); |
| 1120 | if (*get->buf) { |
| 1121 | get->len = tuple->TupleDataLen; |
| 1122 | memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen); |
Dominik Brodowski | 6d9a299 | 2009-10-24 12:20:18 +0200 | [diff] [blame] | 1123 | } else |
| 1124 | dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n"); |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 1125 | return 0; |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 1126 | } |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 1127 | |
| 1128 | /** |
| 1129 | * pcmcia_get_tuple() - get first tuple from CIS |
| 1130 | * @p_dev: the struct pcmcia_device which we need to loop for. |
| 1131 | * @code: which CIS code shall we look for? |
| 1132 | * @buf: pointer to store the buffer to. |
| 1133 | * |
| 1134 | * pcmcia_get_tuple() gets the content of the first CIS entry of type @code. |
| 1135 | * It returns the buffer length (or zero). The caller is responsible to free |
| 1136 | * the buffer passed in @buf. |
| 1137 | */ |
| 1138 | size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code, |
| 1139 | unsigned char **buf) |
| 1140 | { |
| 1141 | struct pcmcia_loop_get get = { |
| 1142 | .len = 0, |
| 1143 | .buf = buf, |
| 1144 | }; |
| 1145 | |
| 1146 | *get.buf = NULL; |
| 1147 | pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get); |
| 1148 | |
| 1149 | return get.len; |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 1150 | } |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 1151 | EXPORT_SYMBOL(pcmcia_get_tuple); |
| 1152 | |
| 1153 | |
| 1154 | /** |
| 1155 | * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis() |
| 1156 | * |
| 1157 | * pcmcia_do_get_mac() is the internal callback for the call from |
| 1158 | * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the |
| 1159 | * tuple contains a proper LAN_NODE_ID of length 6, and copy the data |
| 1160 | * to struct net_device->dev_addr[i]. |
| 1161 | */ |
| 1162 | static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple, |
| 1163 | void *priv) |
| 1164 | { |
| 1165 | struct net_device *dev = priv; |
| 1166 | int i; |
| 1167 | |
| 1168 | if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID) |
| 1169 | return -EINVAL; |
| 1170 | if (tuple->TupleDataLen < ETH_ALEN + 2) { |
| 1171 | dev_warn(&p_dev->dev, "Invalid CIS tuple length for " |
| 1172 | "LAN_NODE_ID\n"); |
| 1173 | return -EINVAL; |
| 1174 | } |
| 1175 | |
| 1176 | if (tuple->TupleData[1] != ETH_ALEN) { |
| 1177 | dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n"); |
| 1178 | return -EINVAL; |
| 1179 | } |
| 1180 | for (i = 0; i < 6; i++) |
| 1181 | dev->dev_addr[i] = tuple->TupleData[i+2]; |
| 1182 | return 0; |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 1183 | } |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 1184 | |
| 1185 | /** |
| 1186 | * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE |
| 1187 | * @p_dev: the struct pcmcia_device for which we want the address. |
| 1188 | * @dev: a properly prepared struct net_device to store the info to. |
| 1189 | * |
| 1190 | * pcmcia_get_mac_from_cis() reads out the hardware MAC address from |
| 1191 | * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which |
| 1192 | * must be set up properly by the driver (see examples!). |
| 1193 | */ |
| 1194 | int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev) |
| 1195 | { |
| 1196 | return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev); |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 1197 | } |
Dominik Brodowski | 9128422 | 2009-10-18 23:32:33 +0200 | [diff] [blame] | 1198 | EXPORT_SYMBOL(pcmcia_get_mac_from_cis); |
| 1199 | |