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, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #include <linux/module.h> 20 #include <linux/kernel.h> 21 #include <linux/slab.h> 22 23 #include <pcmcia/cistpl.h> 24 #include <pcmcia/ds.h> 25 26 #include "softing_platform.h" 27 28 static int softingcs_index; 29 static DEFINE_SPINLOCK(softingcs_index_lock); 30 31 static int softingcs_reset(struct platform_device *pdev, int v); 32 static int softingcs_enable_irq(struct platform_device *pdev, int v); 33 34 /* 35 * platform_data descriptions 36 */ 37 #define MHZ (1000*1000) 38 static const struct softing_platform_data softingcs_platform_data[] = { 39 { 40 .name = "CANcard", 41 .manf = 0x0168, .prod = 0x001, 42 .generation = 1, 43 .nbus = 2, 44 .freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4, 45 .dpram_size = 0x0800, 46 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 47 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 48 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, 49 .reset = softingcs_reset, 50 .enable_irq = softingcs_enable_irq, 51 }, { 52 .name = "CANcard-NEC", 53 .manf = 0x0168, .prod = 0x002, 54 .generation = 1, 55 .nbus = 2, 56 .freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4, 57 .dpram_size = 0x0800, 58 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 59 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 60 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, 61 .reset = softingcs_reset, 62 .enable_irq = softingcs_enable_irq, 63 }, { 64 .name = "CANcard-SJA", 65 .manf = 0x0168, .prod = 0x004, 66 .generation = 1, 67 .nbus = 2, 68 .freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4, 69 .dpram_size = 0x0800, 70 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 71 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 72 .app = {0x0010, 0x0d0000, fw_dir "cansja.bin",}, 73 .reset = softingcs_reset, 74 .enable_irq = softingcs_enable_irq, 75 }, { 76 .name = "CANcard-2", 77 .manf = 0x0168, .prod = 0x005, 78 .generation = 2, 79 .nbus = 2, 80 .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4, 81 .dpram_size = 0x1000, 82 .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",}, 83 .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",}, 84 .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",}, 85 .reset = softingcs_reset, 86 .enable_irq = NULL, 87 }, { 88 .name = "Vector-CANcard", 89 .manf = 0x0168, .prod = 0x081, 90 .generation = 1, 91 .nbus = 2, 92 .freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4, 93 .dpram_size = 0x0800, 94 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 95 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 96 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, 97 .reset = softingcs_reset, 98 .enable_irq = softingcs_enable_irq, 99 }, { 100 .name = "Vector-CANcard-SJA", 101 .manf = 0x0168, .prod = 0x084, 102 .generation = 1, 103 .nbus = 2, 104 .freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4, 105 .dpram_size = 0x0800, 106 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 107 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 108 .app = {0x0010, 0x0d0000, fw_dir "cansja.bin",}, 109 .reset = softingcs_reset, 110 .enable_irq = softingcs_enable_irq, 111 }, { 112 .name = "Vector-CANcard-2", 113 .manf = 0x0168, .prod = 0x085, 114 .generation = 2, 115 .nbus = 2, 116 .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4, 117 .dpram_size = 0x1000, 118 .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",}, 119 .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",}, 120 .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",}, 121 .reset = softingcs_reset, 122 .enable_irq = NULL, 123 }, { 124 .name = "EDICcard-NEC", 125 .manf = 0x0168, .prod = 0x102, 126 .generation = 1, 127 .nbus = 2, 128 .freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4, 129 .dpram_size = 0x0800, 130 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, 131 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, 132 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, 133 .reset = softingcs_reset, 134 .enable_irq = softingcs_enable_irq, 135 }, { 136 .name = "EDICcard-2", 137 .manf = 0x0168, .prod = 0x105, 138 .generation = 2, 139 .nbus = 2, 140 .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4, 141 .dpram_size = 0x1000, 142 .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",}, 143 .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",}, 144 .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",}, 145 .reset = softingcs_reset, 146 .enable_irq = NULL, 147 }, { 148 0, 0, 149 }, 150 }; 151 152 MODULE_FIRMWARE(fw_dir "bcard.bin"); 153 MODULE_FIRMWARE(fw_dir "ldcard.bin"); 154 MODULE_FIRMWARE(fw_dir "cancard.bin"); 155 MODULE_FIRMWARE(fw_dir "cansja.bin"); 156 157 MODULE_FIRMWARE(fw_dir "bcard2.bin"); 158 MODULE_FIRMWARE(fw_dir "ldcard2.bin"); 159 MODULE_FIRMWARE(fw_dir "cancrd2.bin"); 160 161 static const struct softing_platform_data 162 *softingcs_find_platform_data(unsigned int manf, unsigned int prod) 163 { 164 const struct softing_platform_data *lp; 165 166 for (lp = softingcs_platform_data; lp->manf; ++lp) { 167 if ((lp->manf == manf) && (lp->prod == prod)) 168 return lp; 169 } 170 return NULL; 171 } 172 173 /* 174 * platformdata callbacks 175 */ 176 static int softingcs_reset(struct platform_device *pdev, int v) 177 { 178 struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent); 179 180 dev_dbg(&pdev->dev, "pcmcia config [2] %02x\n", v ? 0 : 0x20); 181 return pcmcia_write_config_byte(pcmcia, 2, v ? 0 : 0x20); 182 } 183 184 static int softingcs_enable_irq(struct platform_device *pdev, int v) 185 { 186 struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent); 187 188 dev_dbg(&pdev->dev, "pcmcia config [0] %02x\n", v ? 0x60 : 0); 189 return pcmcia_write_config_byte(pcmcia, 0, v ? 0x60 : 0); 190 } 191 192 /* 193 * pcmcia check 194 */ 195 static int softingcs_probe_config(struct pcmcia_device *pcmcia, void *priv_data) 196 { 197 struct softing_platform_data *pdat = priv_data; 198 struct resource *pres; 199 int memspeed = 0; 200 201 WARN_ON(!pdat); 202 pres = pcmcia->resource[PCMCIA_IOMEM_0]; 203 if (resource_size(pres) < 0x1000) 204 return -ERANGE; 205 206 pres->flags |= WIN_MEMORY_TYPE_CM | WIN_ENABLE; 207 if (pdat->generation < 2) { 208 pres->flags |= WIN_USE_WAIT | WIN_DATA_WIDTH_8; 209 memspeed = 3; 210 } else { 211 pres->flags |= WIN_DATA_WIDTH_16; 212 } 213 return pcmcia_request_window(pcmcia, pres, memspeed); 214 } 215 216 static void softingcs_remove(struct pcmcia_device *pcmcia) 217 { 218 struct platform_device *pdev = pcmcia->priv; 219 220 /* free bits */ 221 platform_device_unregister(pdev); 222 /* release pcmcia stuff */ 223 pcmcia_disable_device(pcmcia); 224 } 225 226 /* 227 * platform_device wrapper 228 * pdev->resource has 2 entries: io & irq 229 */ 230 static void softingcs_pdev_release(struct device *dev) 231 { 232 struct platform_device *pdev = to_platform_device(dev); 233 kfree(pdev); 234 } 235 236 static int softingcs_probe(struct pcmcia_device *pcmcia) 237 { 238 int ret; 239 struct platform_device *pdev; 240 const struct softing_platform_data *pdat; 241 struct resource *pres; 242 struct dev { 243 struct platform_device pdev; 244 struct resource res[2]; 245 } *dev; 246 247 /* find matching platform_data */ 248 pdat = softingcs_find_platform_data(pcmcia->manf_id, pcmcia->card_id); 249 if (!pdat) 250 return -ENOTTY; 251 252 /* setup pcmcia device */ 253 pcmcia->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IOMEM | 254 CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC; 255 ret = pcmcia_loop_config(pcmcia, softingcs_probe_config, (void *)pdat); 256 if (ret) 257 goto pcmcia_failed; 258 259 ret = pcmcia_enable_device(pcmcia); 260 if (ret < 0) 261 goto pcmcia_failed; 262 263 pres = pcmcia->resource[PCMCIA_IOMEM_0]; 264 if (!pres) { 265 ret = -EBADF; 266 goto pcmcia_bad; 267 } 268 269 /* create softing platform device */ 270 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 271 if (!dev) { 272 ret = -ENOMEM; 273 goto mem_failed; 274 } 275 dev->pdev.resource = dev->res; 276 dev->pdev.num_resources = ARRAY_SIZE(dev->res); 277 dev->pdev.dev.release = softingcs_pdev_release; 278 279 pdev = &dev->pdev; 280 pdev->dev.platform_data = (void *)pdat; 281 pdev->dev.parent = &pcmcia->dev; 282 pcmcia->priv = pdev; 283 284 /* platform device resources */ 285 pdev->resource[0].flags = IORESOURCE_MEM; 286 pdev->resource[0].start = pres->start; 287 pdev->resource[0].end = pres->end; 288 289 pdev->resource[1].flags = IORESOURCE_IRQ; 290 pdev->resource[1].start = pcmcia->irq; 291 pdev->resource[1].end = pdev->resource[1].start; 292 293 /* platform device setup */ 294 spin_lock(&softingcs_index_lock); 295 pdev->id = softingcs_index++; 296 spin_unlock(&softingcs_index_lock); 297 pdev->name = "softing"; 298 dev_set_name(&pdev->dev, "softingcs.%i", pdev->id); 299 ret = platform_device_register(pdev); 300 if (ret < 0) 301 goto platform_failed; 302 303 dev_info(&pcmcia->dev, "created %s\n", dev_name(&pdev->dev)); 304 return 0; 305 306 platform_failed: 307 kfree(dev); 308 mem_failed: 309 pcmcia_bad: 310 pcmcia_failed: 311 pcmcia_disable_device(pcmcia); 312 pcmcia->priv = NULL; 313 return ret ?: -ENODEV; 314 } 315 316 static const struct pcmcia_device_id softingcs_ids[] = { 317 /* softing */ 318 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0001), 319 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0002), 320 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0004), 321 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0005), 322 /* vector, manufacturer? */ 323 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0081), 324 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0084), 325 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0085), 326 /* EDIC */ 327 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0102), 328 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0105), 329 PCMCIA_DEVICE_NULL, 330 }; 331 332 MODULE_DEVICE_TABLE(pcmcia, softingcs_ids); 333 334 static struct pcmcia_driver softingcs_driver = { 335 .owner = THIS_MODULE, 336 .name = "softingcs", 337 .id_table = softingcs_ids, 338 .probe = softingcs_probe, 339 .remove = softingcs_remove, 340 }; 341 342 module_pcmcia_driver(softingcs_driver); 343 344 MODULE_DESCRIPTION("softing CANcard driver" 345 ", links PCMCIA card to softing driver"); 346 MODULE_LICENSE("GPL v2"); 347