1 /* 2 * Copyright (C) 2008-2010 3 * 4 * - Kurt Van Dijck, EIA Electronics 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the version 2 of the GNU General Public License 8 * as published by the Free Software Foundation 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 */ 19 20 #include <linux/module.h> 21 #include <linux/kernel.h> 22 #include <linux/slab.h> 23 24 #include <pcmcia/cistpl.h> 25 #include <pcmcia/ds.h> 26 27 #include "softing_platform.h" 28 29 static int softingcs_index; 30 static spinlock_t softingcs_index_lock; 31 32 static int softingcs_reset(struct platform_device *pdev, int v); 33 static int softingcs_enable_irq(struct platform_device *pdev, int v); 34 35 /* 36 * platform_data descriptions 37 */ 38 #define MHZ (1000*1000) 39 static const struct softing_platform_data softingcs_platform_data[] = { 40 { 41 .name = "CANcard", 42 .manf = 0x0168, .prod = 0x001, 43 .generation = 1, 44 .nbus = 2, 45 .freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4, 46 .dpram_size = 0x0800, 47 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 48 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 49 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, 50 .reset = softingcs_reset, 51 .enable_irq = softingcs_enable_irq, 52 }, { 53 .name = "CANcard-NEC", 54 .manf = 0x0168, .prod = 0x002, 55 .generation = 1, 56 .nbus = 2, 57 .freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4, 58 .dpram_size = 0x0800, 59 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 60 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 61 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, 62 .reset = softingcs_reset, 63 .enable_irq = softingcs_enable_irq, 64 }, { 65 .name = "CANcard-SJA", 66 .manf = 0x0168, .prod = 0x004, 67 .generation = 1, 68 .nbus = 2, 69 .freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4, 70 .dpram_size = 0x0800, 71 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 72 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 73 .app = {0x0010, 0x0d0000, fw_dir "cansja.bin",}, 74 .reset = softingcs_reset, 75 .enable_irq = softingcs_enable_irq, 76 }, { 77 .name = "CANcard-2", 78 .manf = 0x0168, .prod = 0x005, 79 .generation = 2, 80 .nbus = 2, 81 .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4, 82 .dpram_size = 0x1000, 83 .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",}, 84 .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",}, 85 .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",}, 86 .reset = softingcs_reset, 87 .enable_irq = NULL, 88 }, { 89 .name = "Vector-CANcard", 90 .manf = 0x0168, .prod = 0x081, 91 .generation = 1, 92 .nbus = 2, 93 .freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4, 94 .dpram_size = 0x0800, 95 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 96 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 97 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, 98 .reset = softingcs_reset, 99 .enable_irq = softingcs_enable_irq, 100 }, { 101 .name = "Vector-CANcard-SJA", 102 .manf = 0x0168, .prod = 0x084, 103 .generation = 1, 104 .nbus = 2, 105 .freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4, 106 .dpram_size = 0x0800, 107 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 108 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 109 .app = {0x0010, 0x0d0000, fw_dir "cansja.bin",}, 110 .reset = softingcs_reset, 111 .enable_irq = softingcs_enable_irq, 112 }, { 113 .name = "Vector-CANcard-2", 114 .manf = 0x0168, .prod = 0x085, 115 .generation = 2, 116 .nbus = 2, 117 .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4, 118 .dpram_size = 0x1000, 119 .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",}, 120 .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",}, 121 .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",}, 122 .reset = softingcs_reset, 123 .enable_irq = NULL, 124 }, { 125 .name = "EDICcard-NEC", 126 .manf = 0x0168, .prod = 0x102, 127 .generation = 1, 128 .nbus = 2, 129 .freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4, 130 .dpram_size = 0x0800, 131 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 132 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 133 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, 134 .reset = softingcs_reset, 135 .enable_irq = softingcs_enable_irq, 136 }, { 137 .name = "EDICcard-2", 138 .manf = 0x0168, .prod = 0x105, 139 .generation = 2, 140 .nbus = 2, 141 .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4, 142 .dpram_size = 0x1000, 143 .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",}, 144 .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",}, 145 .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",}, 146 .reset = softingcs_reset, 147 .enable_irq = NULL, 148 }, { 149 0, 0, 150 }, 151 }; 152 153 MODULE_FIRMWARE(fw_dir "bcard.bin"); 154 MODULE_FIRMWARE(fw_dir "ldcard.bin"); 155 MODULE_FIRMWARE(fw_dir "cancard.bin"); 156 MODULE_FIRMWARE(fw_dir "cansja.bin"); 157 158 MODULE_FIRMWARE(fw_dir "bcard2.bin"); 159 MODULE_FIRMWARE(fw_dir "ldcard2.bin"); 160 MODULE_FIRMWARE(fw_dir "cancrd2.bin"); 161 162 static const struct softing_platform_data 163 *softingcs_find_platform_data(unsigned int manf, unsigned int prod) 164 { 165 const struct softing_platform_data *lp; 166 167 for (lp = softingcs_platform_data; lp->manf; ++lp) { 168 if ((lp->manf == manf) && (lp->prod == prod)) 169 return lp; 170 } 171 return NULL; 172 } 173 174 /* 175 * platformdata callbacks 176 */ 177 static int softingcs_reset(struct platform_device *pdev, int v) 178 { 179 struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent); 180 181 dev_dbg(&pdev->dev, "pcmcia config [2] %02x\n", v ? 0 : 0x20); 182 return pcmcia_write_config_byte(pcmcia, 2, v ? 0 : 0x20); 183 } 184 185 static int softingcs_enable_irq(struct platform_device *pdev, int v) 186 { 187 struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent); 188 189 dev_dbg(&pdev->dev, "pcmcia config [0] %02x\n", v ? 0x60 : 0); 190 return pcmcia_write_config_byte(pcmcia, 0, v ? 0x60 : 0); 191 } 192 193 /* 194 * pcmcia check 195 */ 196 static int softingcs_probe_config(struct pcmcia_device *pcmcia, void *priv_data) 197 { 198 struct softing_platform_data *pdat = priv_data; 199 struct resource *pres; 200 int memspeed = 0; 201 202 WARN_ON(!pdat); 203 pres = pcmcia->resource[PCMCIA_IOMEM_0]; 204 if (resource_size(pres) < 0x1000) 205 return -ERANGE; 206 207 pres->flags |= WIN_MEMORY_TYPE_CM | WIN_ENABLE; 208 if (pdat->generation < 2) { 209 pres->flags |= WIN_USE_WAIT | WIN_DATA_WIDTH_8; 210 memspeed = 3; 211 } else { 212 pres->flags |= WIN_DATA_WIDTH_16; 213 } 214 return pcmcia_request_window(pcmcia, pres, memspeed); 215 } 216 217 static void softingcs_remove(struct pcmcia_device *pcmcia) 218 { 219 struct platform_device *pdev = pcmcia->priv; 220 221 /* free bits */ 222 platform_device_unregister(pdev); 223 /* release pcmcia stuff */ 224 pcmcia_disable_device(pcmcia); 225 } 226 227 /* 228 * platform_device wrapper 229 * pdev->resource has 2 entries: io & irq 230 */ 231 static void softingcs_pdev_release(struct device *dev) 232 { 233 struct platform_device *pdev = to_platform_device(dev); 234 kfree(pdev); 235 } 236 237 static int softingcs_probe(struct pcmcia_device *pcmcia) 238 { 239 int ret; 240 struct platform_device *pdev; 241 const struct softing_platform_data *pdat; 242 struct resource *pres; 243 struct dev { 244 struct platform_device pdev; 245 struct resource res[2]; 246 } *dev; 247 248 /* find matching platform_data */ 249 pdat = softingcs_find_platform_data(pcmcia->manf_id, pcmcia->card_id); 250 if (!pdat) 251 return -ENOTTY; 252 253 /* setup pcmcia device */ 254 pcmcia->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IOMEM | 255 CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC; 256 ret = pcmcia_loop_config(pcmcia, softingcs_probe_config, (void *)pdat); 257 if (ret) 258 goto pcmcia_failed; 259 260 ret = pcmcia_enable_device(pcmcia); 261 if (ret < 0) 262 goto pcmcia_failed; 263 264 pres = pcmcia->resource[PCMCIA_IOMEM_0]; 265 if (!pres) { 266 ret = -EBADF; 267 goto pcmcia_bad; 268 } 269 270 /* create softing platform device */ 271 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 272 if (!dev) { 273 ret = -ENOMEM; 274 goto mem_failed; 275 } 276 dev->pdev.resource = dev->res; 277 dev->pdev.num_resources = ARRAY_SIZE(dev->res); 278 dev->pdev.dev.release = softingcs_pdev_release; 279 280 pdev = &dev->pdev; 281 pdev->dev.platform_data = (void *)pdat; 282 pdev->dev.parent = &pcmcia->dev; 283 pcmcia->priv = pdev; 284 285 /* platform device resources */ 286 pdev->resource[0].flags = IORESOURCE_MEM; 287 pdev->resource[0].start = pres->start; 288 pdev->resource[0].end = pres->end; 289 290 pdev->resource[1].flags = IORESOURCE_IRQ; 291 pdev->resource[1].start = pcmcia->irq; 292 pdev->resource[1].end = pdev->resource[1].start; 293 294 /* platform device setup */ 295 spin_lock(&softingcs_index_lock); 296 pdev->id = softingcs_index++; 297 spin_unlock(&softingcs_index_lock); 298 pdev->name = "softing"; 299 dev_set_name(&pdev->dev, "softingcs.%i", pdev->id); 300 ret = platform_device_register(pdev); 301 if (ret < 0) 302 goto platform_failed; 303 304 dev_info(&pcmcia->dev, "created %s\n", dev_name(&pdev->dev)); 305 return 0; 306 307 platform_failed: 308 kfree(dev); 309 mem_failed: 310 pcmcia_bad: 311 pcmcia_failed: 312 pcmcia_disable_device(pcmcia); 313 pcmcia->priv = NULL; 314 return ret ?: -ENODEV; 315 } 316 317 static const struct pcmcia_device_id softingcs_ids[] = { 318 /* softing */ 319 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0001), 320 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0002), 321 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0004), 322 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0005), 323 /* vector, manufacturer? */ 324 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0081), 325 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0084), 326 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0085), 327 /* EDIC */ 328 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0102), 329 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0105), 330 PCMCIA_DEVICE_NULL, 331 }; 332 333 MODULE_DEVICE_TABLE(pcmcia, softingcs_ids); 334 335 static struct pcmcia_driver softingcs_driver = { 336 .owner = THIS_MODULE, 337 .name = "softingcs", 338 .id_table = softingcs_ids, 339 .probe = softingcs_probe, 340 .remove = softingcs_remove, 341 }; 342 343 static int __init softingcs_start(void) 344 { 345 spin_lock_init(&softingcs_index_lock); 346 return pcmcia_register_driver(&softingcs_driver); 347 } 348 349 static void __exit softingcs_stop(void) 350 { 351 pcmcia_unregister_driver(&softingcs_driver); 352 } 353 354 module_init(softingcs_start); 355 module_exit(softingcs_stop); 356 357 MODULE_DESCRIPTION("softing CANcard driver" 358 ", links PCMCIA card to softing driver"); 359 MODULE_LICENSE("GPL v2"); 360