Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 1 | /* |
| 2 | * USB RedRat3 IR Transceiver rc-core driver |
| 3 | * |
| 4 | * Copyright (c) 2011 by Jarod Wilson <jarod@redhat.com> |
| 5 | * based heavily on the work of Stephen Cox, with additional |
| 6 | * help from RedRat Ltd. |
| 7 | * |
| 8 | * This driver began life based an an old version of the first-generation |
| 9 | * lirc_mceusb driver from the lirc 0.7.2 distribution. It was then |
| 10 | * significantly rewritten by Stephen Cox with the aid of RedRat Ltd's |
| 11 | * Chris Dodge. |
| 12 | * |
| 13 | * The driver was then ported to rc-core and significantly rewritten again, |
| 14 | * by Jarod, using the in-kernel mceusb driver as a guide, after an initial |
| 15 | * port effort was started by Stephen. |
| 16 | * |
| 17 | * TODO LIST: |
| 18 | * - fix lirc not showing repeats properly |
| 19 | * -- |
| 20 | * |
| 21 | * The RedRat3 is a USB transceiver with both send & receive, |
| 22 | * with 2 separate sensors available for receive to enable |
| 23 | * both good long range reception for general use, and good |
| 24 | * short range reception when required for learning a signal. |
| 25 | * |
| 26 | * http://www.redrat.co.uk/ |
| 27 | * |
| 28 | * It uses its own little protocol to communicate, the required |
| 29 | * parts of which are embedded within this driver. |
| 30 | * -- |
| 31 | * |
| 32 | * This program is free software; you can redistribute it and/or modify |
| 33 | * it under the terms of the GNU General Public License as published by |
| 34 | * the Free Software Foundation; either version 2 of the License, or |
| 35 | * (at your option) any later version. |
| 36 | * |
| 37 | * This program is distributed in the hope that it will be useful, |
| 38 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 39 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 40 | * GNU General Public License for more details. |
| 41 | * |
| 42 | * You should have received a copy of the GNU General Public License |
| 43 | * along with this program; if not, write to the Free Software |
| 44 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 45 | * |
| 46 | */ |
| 47 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 48 | #include <asm/unaligned.h> |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 49 | #include <linux/device.h> |
| 50 | #include <linux/module.h> |
| 51 | #include <linux/slab.h> |
| 52 | #include <linux/usb.h> |
| 53 | #include <linux/usb/input.h> |
| 54 | #include <media/rc-core.h> |
| 55 | |
| 56 | /* Driver Information */ |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 57 | #define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>" |
| 58 | #define DRIVER_AUTHOR2 "The Dweller, Stephen Cox" |
| 59 | #define DRIVER_DESC "RedRat3 USB IR Transceiver Driver" |
| 60 | #define DRIVER_NAME "redrat3" |
| 61 | |
| 62 | /* module parameters */ |
| 63 | #ifdef CONFIG_USB_DEBUG |
| 64 | static int debug = 1; |
| 65 | #else |
| 66 | static int debug; |
| 67 | #endif |
| 68 | |
| 69 | #define RR3_DEBUG_STANDARD 0x1 |
| 70 | #define RR3_DEBUG_FUNCTION_TRACE 0x2 |
| 71 | |
| 72 | #define rr3_dbg(dev, fmt, ...) \ |
| 73 | do { \ |
| 74 | if (debug & RR3_DEBUG_STANDARD) \ |
| 75 | dev_info(dev, fmt, ## __VA_ARGS__); \ |
| 76 | } while (0) |
| 77 | |
| 78 | #define rr3_ftr(dev, fmt, ...) \ |
| 79 | do { \ |
| 80 | if (debug & RR3_DEBUG_FUNCTION_TRACE) \ |
| 81 | dev_info(dev, fmt, ## __VA_ARGS__); \ |
| 82 | } while (0) |
| 83 | |
| 84 | /* bulk data transfer types */ |
| 85 | #define RR3_ERROR 0x01 |
| 86 | #define RR3_MOD_SIGNAL_IN 0x20 |
| 87 | #define RR3_MOD_SIGNAL_OUT 0x21 |
| 88 | |
| 89 | /* Get the RR firmware version */ |
| 90 | #define RR3_FW_VERSION 0xb1 |
| 91 | #define RR3_FW_VERSION_LEN 64 |
| 92 | /* Send encoded signal bulk-sent earlier*/ |
| 93 | #define RR3_TX_SEND_SIGNAL 0xb3 |
| 94 | #define RR3_SET_IR_PARAM 0xb7 |
| 95 | #define RR3_GET_IR_PARAM 0xb8 |
| 96 | /* Blink the red LED on the device */ |
| 97 | #define RR3_BLINK_LED 0xb9 |
| 98 | /* Read serial number of device */ |
| 99 | #define RR3_READ_SER_NO 0xba |
| 100 | #define RR3_SER_NO_LEN 4 |
| 101 | /* Start capture with the RC receiver */ |
| 102 | #define RR3_RC_DET_ENABLE 0xbb |
| 103 | /* Stop capture with the RC receiver */ |
| 104 | #define RR3_RC_DET_DISABLE 0xbc |
| 105 | /* Return the status of RC detector capture */ |
| 106 | #define RR3_RC_DET_STATUS 0xbd |
| 107 | /* Reset redrat */ |
| 108 | #define RR3_RESET 0xa0 |
| 109 | |
| 110 | /* Max number of lengths in the signal. */ |
| 111 | #define RR3_IR_IO_MAX_LENGTHS 0x01 |
| 112 | /* Periods to measure mod. freq. */ |
| 113 | #define RR3_IR_IO_PERIODS_MF 0x02 |
| 114 | /* Size of memory for main signal data */ |
| 115 | #define RR3_IR_IO_SIG_MEM_SIZE 0x03 |
| 116 | /* Delta value when measuring lengths */ |
| 117 | #define RR3_IR_IO_LENGTH_FUZZ 0x04 |
| 118 | /* Timeout for end of signal detection */ |
| 119 | #define RR3_IR_IO_SIG_TIMEOUT 0x05 |
| 120 | /* Minumum value for pause recognition. */ |
| 121 | #define RR3_IR_IO_MIN_PAUSE 0x06 |
| 122 | |
| 123 | /* Clock freq. of EZ-USB chip */ |
| 124 | #define RR3_CLK 24000000 |
| 125 | /* Clock periods per timer count */ |
| 126 | #define RR3_CLK_PER_COUNT 12 |
| 127 | /* (RR3_CLK / RR3_CLK_PER_COUNT) */ |
| 128 | #define RR3_CLK_CONV_FACTOR 2000000 |
| 129 | /* USB bulk-in IR data endpoint address */ |
| 130 | #define RR3_BULK_IN_EP_ADDR 0x82 |
| 131 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 132 | /* Size of the fixed-length portion of the signal */ |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 133 | #define RR3_DRIVER_MAXLENS 128 |
| 134 | #define RR3_MAX_SIG_SIZE 512 |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 135 | #define RR3_TIME_UNIT 50 |
| 136 | #define RR3_END_OF_SIGNAL 0x7f |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 137 | #define RR3_TX_TRAILER_LEN 2 |
| 138 | #define RR3_RX_MIN_TIMEOUT 5 |
| 139 | #define RR3_RX_MAX_TIMEOUT 2000 |
| 140 | |
| 141 | /* The 8051's CPUCS Register address */ |
| 142 | #define RR3_CPUCS_REG_ADDR 0x7f92 |
| 143 | |
| 144 | #define USB_RR3USB_VENDOR_ID 0x112a |
| 145 | #define USB_RR3USB_PRODUCT_ID 0x0001 |
| 146 | #define USB_RR3IIUSB_PRODUCT_ID 0x0005 |
| 147 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 148 | struct redrat3_header { |
| 149 | __be16 length; |
| 150 | __be16 transfer_type; |
| 151 | } __packed; |
| 152 | |
| 153 | /* sending and receiving irdata */ |
| 154 | struct redrat3_irdata { |
| 155 | struct redrat3_header header; |
| 156 | __be32 pause; |
| 157 | __be16 mod_freq_count; |
| 158 | __be16 num_periods; |
| 159 | __u8 max_lengths; |
| 160 | __u8 no_lengths; |
| 161 | __be16 max_sig_size; |
| 162 | __be16 sig_size; |
| 163 | __u8 no_repeats; |
| 164 | __be16 lens[RR3_DRIVER_MAXLENS]; /* not aligned */ |
| 165 | __u8 sigdata[RR3_MAX_SIG_SIZE]; |
| 166 | } __packed; |
| 167 | |
| 168 | /* firmware errors */ |
| 169 | struct redrat3_error { |
| 170 | struct redrat3_header header; |
| 171 | __be16 fw_error; |
| 172 | } __packed; |
| 173 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 174 | /* table of devices that work with this driver */ |
| 175 | static struct usb_device_id redrat3_dev_table[] = { |
| 176 | /* Original version of the RedRat3 */ |
| 177 | {USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3USB_PRODUCT_ID)}, |
| 178 | /* Second Version/release of the RedRat3 - RetRat3-II */ |
| 179 | {USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3IIUSB_PRODUCT_ID)}, |
| 180 | {} /* Terminating entry */ |
| 181 | }; |
| 182 | |
| 183 | /* Structure to hold all of our device specific stuff */ |
| 184 | struct redrat3_dev { |
| 185 | /* core device bits */ |
| 186 | struct rc_dev *rc; |
| 187 | struct device *dev; |
| 188 | |
| 189 | /* save off the usb device pointer */ |
| 190 | struct usb_device *udev; |
| 191 | |
| 192 | /* the receive endpoint */ |
| 193 | struct usb_endpoint_descriptor *ep_in; |
| 194 | /* the buffer to receive data */ |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 195 | void *bulk_in_buf; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 196 | /* urb used to read ir data */ |
| 197 | struct urb *read_urb; |
| 198 | |
| 199 | /* the send endpoint */ |
| 200 | struct usb_endpoint_descriptor *ep_out; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 201 | |
| 202 | /* usb dma */ |
| 203 | dma_addr_t dma_in; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 204 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 205 | /* rx signal timeout timer */ |
| 206 | struct timer_list rx_timeout; |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 207 | u32 hw_timeout; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 208 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 209 | /* is the detector enabled*/ |
| 210 | bool det_enabled; |
| 211 | /* Is the device currently transmitting?*/ |
| 212 | bool transmitting; |
| 213 | |
| 214 | /* store for current packet */ |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 215 | struct redrat3_irdata irdata; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 216 | u16 bytes_read; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 217 | |
| 218 | u32 carrier; |
| 219 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 220 | char name[64]; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 221 | char phys[64]; |
| 222 | }; |
| 223 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 224 | /* |
| 225 | * redrat3_issue_async |
| 226 | * |
| 227 | * Issues an async read to the ir data in port.. |
| 228 | * sets the callback to be redrat3_handle_async |
| 229 | */ |
| 230 | static void redrat3_issue_async(struct redrat3_dev *rr3) |
| 231 | { |
| 232 | int res; |
| 233 | |
| 234 | rr3_ftr(rr3->dev, "Entering %s\n", __func__); |
| 235 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 236 | res = usb_submit_urb(rr3->read_urb, GFP_ATOMIC); |
| 237 | if (res) |
| 238 | rr3_dbg(rr3->dev, "%s: receive request FAILED! " |
| 239 | "(res %d, len %d)\n", __func__, res, |
| 240 | rr3->read_urb->transfer_buffer_length); |
| 241 | } |
| 242 | |
| 243 | static void redrat3_dump_fw_error(struct redrat3_dev *rr3, int code) |
| 244 | { |
| 245 | if (!rr3->transmitting && (code != 0x40)) |
| 246 | dev_info(rr3->dev, "fw error code 0x%02x: ", code); |
| 247 | |
| 248 | switch (code) { |
| 249 | case 0x00: |
| 250 | pr_cont("No Error\n"); |
| 251 | break; |
| 252 | |
| 253 | /* Codes 0x20 through 0x2f are IR Firmware Errors */ |
| 254 | case 0x20: |
| 255 | pr_cont("Initial signal pulse not long enough " |
| 256 | "to measure carrier frequency\n"); |
| 257 | break; |
| 258 | case 0x21: |
| 259 | pr_cont("Not enough length values allocated for signal\n"); |
| 260 | break; |
| 261 | case 0x22: |
| 262 | pr_cont("Not enough memory allocated for signal data\n"); |
| 263 | break; |
| 264 | case 0x23: |
| 265 | pr_cont("Too many signal repeats\n"); |
| 266 | break; |
| 267 | case 0x28: |
| 268 | pr_cont("Insufficient memory available for IR signal " |
| 269 | "data memory allocation\n"); |
| 270 | break; |
| 271 | case 0x29: |
| 272 | pr_cont("Insufficient memory available " |
| 273 | "for IrDa signal data memory allocation\n"); |
| 274 | break; |
| 275 | |
| 276 | /* Codes 0x30 through 0x3f are USB Firmware Errors */ |
| 277 | case 0x30: |
| 278 | pr_cont("Insufficient memory available for bulk " |
| 279 | "transfer structure\n"); |
| 280 | break; |
| 281 | |
| 282 | /* |
| 283 | * Other error codes... These are primarily errors that can occur in |
| 284 | * the control messages sent to the redrat |
| 285 | */ |
| 286 | case 0x40: |
| 287 | if (!rr3->transmitting) |
| 288 | pr_cont("Signal capture has been terminated\n"); |
| 289 | break; |
| 290 | case 0x41: |
| 291 | pr_cont("Attempt to set/get and unknown signal I/O " |
| 292 | "algorithm parameter\n"); |
| 293 | break; |
| 294 | case 0x42: |
| 295 | pr_cont("Signal capture already started\n"); |
| 296 | break; |
| 297 | |
| 298 | default: |
| 299 | pr_cont("Unknown Error\n"); |
| 300 | break; |
| 301 | } |
| 302 | } |
| 303 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 304 | static u32 redrat3_val_to_mod_freq(struct redrat3_irdata *irdata) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 305 | { |
| 306 | u32 mod_freq = 0; |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 307 | u16 mod_freq_count = be16_to_cpu(irdata->mod_freq_count); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 308 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 309 | if (mod_freq_count != 0) |
| 310 | mod_freq = (RR3_CLK * be16_to_cpu(irdata->num_periods)) / |
| 311 | (mod_freq_count * RR3_CLK_PER_COUNT); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 312 | |
| 313 | return mod_freq; |
| 314 | } |
| 315 | |
| 316 | /* this function scales down the figures for the same result... */ |
| 317 | static u32 redrat3_len_to_us(u32 length) |
| 318 | { |
| 319 | u32 biglen = length * 1000; |
| 320 | u32 divisor = (RR3_CLK_CONV_FACTOR) / 1000; |
| 321 | u32 result = (u32) (biglen / divisor); |
| 322 | |
| 323 | /* don't allow zero lengths to go back, breaks lirc */ |
| 324 | return result ? result : 1; |
| 325 | } |
| 326 | |
| 327 | /* |
| 328 | * convert us back into redrat3 lengths |
| 329 | * |
| 330 | * length * 1000 length * 1000000 |
| 331 | * ------------- = ---------------- = micro |
| 332 | * rr3clk / 1000 rr3clk |
| 333 | |
| 334 | * 6 * 2 4 * 3 micro * rr3clk micro * rr3clk / 1000 |
| 335 | * ----- = 4 ----- = 6 -------------- = len --------------------- |
| 336 | * 3 2 1000000 1000 |
| 337 | */ |
| 338 | static u32 redrat3_us_to_len(u32 microsec) |
| 339 | { |
| 340 | u32 result; |
| 341 | u32 divisor; |
| 342 | |
| 343 | microsec &= IR_MAX_DURATION; |
| 344 | divisor = (RR3_CLK_CONV_FACTOR / 1000); |
| 345 | result = (u32)(microsec * divisor) / 1000; |
| 346 | |
| 347 | /* don't allow zero lengths to go back, breaks lirc */ |
| 348 | return result ? result : 1; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 349 | } |
| 350 | |
Jarod Wilson | 68b2a69 | 2011-07-13 18:26:05 -0300 | [diff] [blame] | 351 | /* timer callback to send reset event */ |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 352 | static void redrat3_rx_timeout(unsigned long data) |
| 353 | { |
| 354 | struct redrat3_dev *rr3 = (struct redrat3_dev *)data; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 355 | |
| 356 | rr3_dbg(rr3->dev, "calling ir_raw_event_reset\n"); |
| 357 | ir_raw_event_reset(rr3->rc); |
| 358 | } |
| 359 | |
| 360 | static void redrat3_process_ir_data(struct redrat3_dev *rr3) |
| 361 | { |
| 362 | DEFINE_IR_RAW_EVENT(rawir); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 363 | struct device *dev; |
Sean Young | fa7b9ac | 2013-02-16 17:25:45 -0300 | [diff] [blame] | 364 | unsigned i, trailer = 0; |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 365 | unsigned sig_size, single_len, offset, val; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 366 | unsigned long delay; |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 367 | u32 mod_freq; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 368 | |
| 369 | if (!rr3) { |
| 370 | pr_err("%s called with no context!\n", __func__); |
| 371 | return; |
| 372 | } |
| 373 | |
| 374 | rr3_ftr(rr3->dev, "Entered %s\n", __func__); |
| 375 | |
| 376 | dev = rr3->dev; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 377 | |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 378 | /* Make sure we reset the IR kfifo after a bit of inactivity */ |
| 379 | delay = usecs_to_jiffies(rr3->hw_timeout); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 380 | mod_timer(&rr3->rx_timeout, jiffies + delay); |
| 381 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 382 | mod_freq = redrat3_val_to_mod_freq(&rr3->irdata); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 383 | rr3_dbg(dev, "Got mod_freq of %u\n", mod_freq); |
| 384 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 385 | /* process each rr3 encoded byte into an int */ |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 386 | sig_size = be16_to_cpu(rr3->irdata.sig_size); |
| 387 | for (i = 0; i < sig_size; i++) { |
| 388 | offset = rr3->irdata.sigdata[i]; |
| 389 | val = get_unaligned_be16(&rr3->irdata.lens[offset]); |
| 390 | single_len = redrat3_len_to_us(val); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 391 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 392 | /* we should always get pulse/space/pulse/space samples */ |
| 393 | if (i % 2) |
| 394 | rawir.pulse = false; |
| 395 | else |
| 396 | rawir.pulse = true; |
| 397 | |
| 398 | rawir.duration = US_TO_NS(single_len); |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 399 | /* Save initial pulse length to fudge trailer */ |
| 400 | if (i == 0) |
| 401 | trailer = rawir.duration; |
Jarod Wilson | 2c594ff | 2011-07-13 18:26:06 -0300 | [diff] [blame] | 402 | /* cap the value to IR_MAX_DURATION */ |
| 403 | rawir.duration &= IR_MAX_DURATION; |
| 404 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 405 | rr3_dbg(dev, "storing %s with duration %d (i: %d)\n", |
| 406 | rawir.pulse ? "pulse" : "space", rawir.duration, i); |
| 407 | ir_raw_event_store_with_filter(rr3->rc, &rawir); |
| 408 | } |
| 409 | |
| 410 | /* add a trailing space, if need be */ |
| 411 | if (i % 2) { |
| 412 | rawir.pulse = false; |
| 413 | /* this duration is made up, and may not be ideal... */ |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 414 | if (trailer < US_TO_NS(1000)) |
| 415 | rawir.duration = US_TO_NS(2800); |
| 416 | else |
| 417 | rawir.duration = trailer; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 418 | rr3_dbg(dev, "storing trailing space with duration %d\n", |
| 419 | rawir.duration); |
| 420 | ir_raw_event_store_with_filter(rr3->rc, &rawir); |
| 421 | } |
| 422 | |
| 423 | rr3_dbg(dev, "calling ir_raw_event_handle\n"); |
| 424 | ir_raw_event_handle(rr3->rc); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 425 | } |
| 426 | |
| 427 | /* Util fn to send rr3 cmds */ |
| 428 | static u8 redrat3_send_cmd(int cmd, struct redrat3_dev *rr3) |
| 429 | { |
| 430 | struct usb_device *udev; |
| 431 | u8 *data; |
| 432 | int res; |
| 433 | |
| 434 | data = kzalloc(sizeof(u8), GFP_KERNEL); |
| 435 | if (!data) |
| 436 | return -ENOMEM; |
| 437 | |
| 438 | udev = rr3->udev; |
| 439 | res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), cmd, |
| 440 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, |
| 441 | 0x0000, 0x0000, data, sizeof(u8), HZ * 10); |
| 442 | |
| 443 | if (res < 0) { |
| 444 | dev_err(rr3->dev, "%s: Error sending rr3 cmd res %d, data %d", |
| 445 | __func__, res, *data); |
| 446 | res = -EIO; |
| 447 | } else |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 448 | res = data[0]; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 449 | |
| 450 | kfree(data); |
| 451 | |
| 452 | return res; |
| 453 | } |
| 454 | |
| 455 | /* Enables the long range detector and starts async receive */ |
| 456 | static int redrat3_enable_detector(struct redrat3_dev *rr3) |
| 457 | { |
| 458 | struct device *dev = rr3->dev; |
| 459 | u8 ret; |
| 460 | |
| 461 | rr3_ftr(dev, "Entering %s\n", __func__); |
| 462 | |
| 463 | ret = redrat3_send_cmd(RR3_RC_DET_ENABLE, rr3); |
| 464 | if (ret != 0) |
| 465 | dev_dbg(dev, "%s: unexpected ret of %d\n", |
| 466 | __func__, ret); |
| 467 | |
| 468 | ret = redrat3_send_cmd(RR3_RC_DET_STATUS, rr3); |
| 469 | if (ret != 1) { |
| 470 | dev_err(dev, "%s: detector status: %d, should be 1\n", |
| 471 | __func__, ret); |
| 472 | return -EIO; |
| 473 | } |
| 474 | |
| 475 | rr3->det_enabled = true; |
| 476 | redrat3_issue_async(rr3); |
| 477 | |
| 478 | return 0; |
| 479 | } |
| 480 | |
| 481 | /* Disables the rr3 long range detector */ |
| 482 | static void redrat3_disable_detector(struct redrat3_dev *rr3) |
| 483 | { |
| 484 | struct device *dev = rr3->dev; |
| 485 | u8 ret; |
| 486 | |
| 487 | rr3_ftr(dev, "Entering %s\n", __func__); |
| 488 | |
| 489 | ret = redrat3_send_cmd(RR3_RC_DET_DISABLE, rr3); |
| 490 | if (ret != 0) |
| 491 | dev_err(dev, "%s: failure!\n", __func__); |
| 492 | |
| 493 | ret = redrat3_send_cmd(RR3_RC_DET_STATUS, rr3); |
| 494 | if (ret != 0) |
| 495 | dev_warn(dev, "%s: detector status: %d, should be 0\n", |
| 496 | __func__, ret); |
| 497 | |
| 498 | rr3->det_enabled = false; |
| 499 | } |
| 500 | |
| 501 | static inline void redrat3_delete(struct redrat3_dev *rr3, |
| 502 | struct usb_device *udev) |
| 503 | { |
| 504 | rr3_ftr(rr3->dev, "%s cleaning up\n", __func__); |
| 505 | usb_kill_urb(rr3->read_urb); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 506 | |
| 507 | usb_free_urb(rr3->read_urb); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 508 | |
Sean Young | fa7b9ac | 2013-02-16 17:25:45 -0300 | [diff] [blame] | 509 | usb_free_coherent(udev, le16_to_cpu(rr3->ep_in->wMaxPacketSize), |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 510 | rr3->bulk_in_buf, rr3->dma_in); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 511 | |
| 512 | kfree(rr3); |
| 513 | } |
| 514 | |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 515 | static u32 redrat3_get_timeout(struct redrat3_dev *rr3) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 516 | { |
Sean Young | 801b69f | 2013-02-16 17:25:43 -0300 | [diff] [blame] | 517 | __be32 *tmp; |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 518 | u32 timeout = MS_TO_US(150); /* a sane default, if things go haywire */ |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 519 | int len, ret, pipe; |
| 520 | |
| 521 | len = sizeof(*tmp); |
| 522 | tmp = kzalloc(len, GFP_KERNEL); |
| 523 | if (!tmp) { |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 524 | dev_warn(rr3->dev, "Memory allocation faillure\n"); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 525 | return timeout; |
| 526 | } |
| 527 | |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 528 | pipe = usb_rcvctrlpipe(rr3->udev, 0); |
| 529 | ret = usb_control_msg(rr3->udev, pipe, RR3_GET_IR_PARAM, |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 530 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, |
| 531 | RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, HZ * 5); |
Sean Young | 801b69f | 2013-02-16 17:25:43 -0300 | [diff] [blame] | 532 | if (ret != len) |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 533 | dev_warn(rr3->dev, "Failed to read timeout from hardware\n"); |
Sean Young | 801b69f | 2013-02-16 17:25:43 -0300 | [diff] [blame] | 534 | else { |
| 535 | timeout = redrat3_len_to_us(be32_to_cpup(tmp)); |
| 536 | |
| 537 | rr3_dbg(rr3->dev, "Got timeout of %d ms\n", timeout / 1000); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 538 | } |
| 539 | |
Sean Young | 801b69f | 2013-02-16 17:25:43 -0300 | [diff] [blame] | 540 | kfree(tmp); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 541 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 542 | return timeout; |
| 543 | } |
| 544 | |
| 545 | static void redrat3_reset(struct redrat3_dev *rr3) |
| 546 | { |
| 547 | struct usb_device *udev = rr3->udev; |
| 548 | struct device *dev = rr3->dev; |
| 549 | int rc, rxpipe, txpipe; |
| 550 | u8 *val; |
| 551 | int len = sizeof(u8); |
| 552 | |
| 553 | rr3_ftr(dev, "Entering %s\n", __func__); |
| 554 | |
| 555 | rxpipe = usb_rcvctrlpipe(udev, 0); |
| 556 | txpipe = usb_sndctrlpipe(udev, 0); |
| 557 | |
Sean Young | fa7b9ac | 2013-02-16 17:25:45 -0300 | [diff] [blame] | 558 | val = kmalloc(len, GFP_KERNEL); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 559 | if (!val) { |
| 560 | dev_err(dev, "Memory allocation failure\n"); |
| 561 | return; |
| 562 | } |
| 563 | |
| 564 | *val = 0x01; |
| 565 | rc = usb_control_msg(udev, rxpipe, RR3_RESET, |
| 566 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, |
| 567 | RR3_CPUCS_REG_ADDR, 0, val, len, HZ * 25); |
| 568 | rr3_dbg(dev, "reset returned 0x%02x\n", rc); |
| 569 | |
| 570 | *val = 5; |
| 571 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, |
| 572 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, |
| 573 | RR3_IR_IO_LENGTH_FUZZ, 0, val, len, HZ * 25); |
| 574 | rr3_dbg(dev, "set ir parm len fuzz %d rc 0x%02x\n", *val, rc); |
| 575 | |
| 576 | *val = RR3_DRIVER_MAXLENS; |
| 577 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, |
| 578 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, |
| 579 | RR3_IR_IO_MAX_LENGTHS, 0, val, len, HZ * 25); |
| 580 | rr3_dbg(dev, "set ir parm max lens %d rc 0x%02x\n", *val, rc); |
| 581 | |
| 582 | kfree(val); |
| 583 | } |
| 584 | |
| 585 | static void redrat3_get_firmware_rev(struct redrat3_dev *rr3) |
| 586 | { |
| 587 | int rc = 0; |
| 588 | char *buffer; |
| 589 | |
| 590 | rr3_ftr(rr3->dev, "Entering %s\n", __func__); |
| 591 | |
| 592 | buffer = kzalloc(sizeof(char) * (RR3_FW_VERSION_LEN + 1), GFP_KERNEL); |
| 593 | if (!buffer) { |
| 594 | dev_err(rr3->dev, "Memory allocation failure\n"); |
| 595 | return; |
| 596 | } |
| 597 | |
| 598 | rc = usb_control_msg(rr3->udev, usb_rcvctrlpipe(rr3->udev, 0), |
| 599 | RR3_FW_VERSION, |
| 600 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, |
| 601 | 0, 0, buffer, RR3_FW_VERSION_LEN, HZ * 5); |
| 602 | |
| 603 | if (rc >= 0) |
| 604 | dev_info(rr3->dev, "Firmware rev: %s", buffer); |
| 605 | else |
| 606 | dev_err(rr3->dev, "Problem fetching firmware ID\n"); |
| 607 | |
| 608 | kfree(buffer); |
| 609 | rr3_ftr(rr3->dev, "Exiting %s\n", __func__); |
| 610 | } |
| 611 | |
Sean Young | fa7b9ac | 2013-02-16 17:25:45 -0300 | [diff] [blame] | 612 | static void redrat3_read_packet_start(struct redrat3_dev *rr3, unsigned len) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 613 | { |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 614 | struct redrat3_header *header = rr3->bulk_in_buf; |
| 615 | unsigned pktlen, pkttype; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 616 | |
| 617 | rr3_ftr(rr3->dev, "Entering %s\n", __func__); |
| 618 | |
| 619 | /* grab the Length and type of transfer */ |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 620 | pktlen = be16_to_cpu(header->length); |
| 621 | pkttype = be16_to_cpu(header->transfer_type); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 622 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 623 | if (pktlen > sizeof(rr3->irdata)) { |
| 624 | dev_warn(rr3->dev, "packet length %u too large\n", pktlen); |
| 625 | return; |
| 626 | } |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 627 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 628 | switch (pkttype) { |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 629 | case RR3_ERROR: |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 630 | if (len >= sizeof(struct redrat3_error)) { |
| 631 | struct redrat3_error *error = rr3->bulk_in_buf; |
| 632 | unsigned fw_error = be16_to_cpu(error->fw_error); |
| 633 | redrat3_dump_fw_error(rr3, fw_error); |
| 634 | } |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 635 | break; |
| 636 | |
| 637 | case RR3_MOD_SIGNAL_IN: |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 638 | memcpy(&rr3->irdata, rr3->bulk_in_buf, len); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 639 | rr3->bytes_read = len; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 640 | rr3_dbg(rr3->dev, "bytes_read %d, pktlen %d\n", |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 641 | rr3->bytes_read, pktlen); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 642 | break; |
| 643 | |
| 644 | default: |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 645 | rr3_dbg(rr3->dev, "ignoring packet with type 0x%02x, len of %d, 0x%02x\n", |
| 646 | pkttype, len, pktlen); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 647 | break; |
| 648 | } |
| 649 | } |
| 650 | |
Sean Young | fa7b9ac | 2013-02-16 17:25:45 -0300 | [diff] [blame] | 651 | static void redrat3_read_packet_continue(struct redrat3_dev *rr3, unsigned len) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 652 | { |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 653 | void *irdata = &rr3->irdata; |
| 654 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 655 | rr3_ftr(rr3->dev, "Entering %s\n", __func__); |
| 656 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 657 | if (len + rr3->bytes_read > sizeof(rr3->irdata)) { |
| 658 | dev_warn(rr3->dev, "too much data for packet\n"); |
| 659 | rr3->bytes_read = 0; |
| 660 | return; |
| 661 | } |
| 662 | |
| 663 | memcpy(irdata + rr3->bytes_read, rr3->bulk_in_buf, len); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 664 | |
| 665 | rr3->bytes_read += len; |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 666 | rr3_dbg(rr3->dev, "bytes_read %d, pktlen %d\n", rr3->bytes_read, |
| 667 | be16_to_cpu(rr3->irdata.header.length)); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 668 | } |
| 669 | |
| 670 | /* gather IR data from incoming urb, process it when we have enough */ |
Sean Young | fa7b9ac | 2013-02-16 17:25:45 -0300 | [diff] [blame] | 671 | static int redrat3_get_ir_data(struct redrat3_dev *rr3, unsigned len) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 672 | { |
| 673 | struct device *dev = rr3->dev; |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 674 | unsigned pkttype; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 675 | int ret = 0; |
| 676 | |
| 677 | rr3_ftr(dev, "Entering %s\n", __func__); |
| 678 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 679 | if (rr3->bytes_read == 0 && len >= sizeof(struct redrat3_header)) { |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 680 | redrat3_read_packet_start(rr3, len); |
| 681 | } else if (rr3->bytes_read != 0) { |
| 682 | redrat3_read_packet_continue(rr3, len); |
| 683 | } else if (rr3->bytes_read == 0) { |
| 684 | dev_err(dev, "error: no packet data read\n"); |
| 685 | ret = -ENODATA; |
| 686 | goto out; |
| 687 | } |
| 688 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 689 | if (rr3->bytes_read < be16_to_cpu(rr3->irdata.header.length)) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 690 | /* we're still accumulating data */ |
| 691 | return 0; |
| 692 | |
| 693 | /* if we get here, we've got IR data to decode */ |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 694 | pkttype = be16_to_cpu(rr3->irdata.header.transfer_type); |
| 695 | if (pkttype == RR3_MOD_SIGNAL_IN) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 696 | redrat3_process_ir_data(rr3); |
| 697 | else |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 698 | rr3_dbg(dev, "discarding non-signal data packet (type 0x%02x)\n", |
| 699 | pkttype); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 700 | |
| 701 | out: |
| 702 | rr3->bytes_read = 0; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 703 | return ret; |
| 704 | } |
| 705 | |
| 706 | /* callback function from USB when async USB request has completed */ |
Sean Young | 801b69f | 2013-02-16 17:25:43 -0300 | [diff] [blame] | 707 | static void redrat3_handle_async(struct urb *urb) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 708 | { |
| 709 | struct redrat3_dev *rr3; |
Andrew Vincer | dbea188 | 2011-11-08 12:43:45 -0300 | [diff] [blame] | 710 | int ret; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 711 | |
| 712 | if (!urb) |
| 713 | return; |
| 714 | |
| 715 | rr3 = urb->context; |
| 716 | if (!rr3) { |
| 717 | pr_err("%s called with invalid context!\n", __func__); |
| 718 | usb_unlink_urb(urb); |
| 719 | return; |
| 720 | } |
| 721 | |
| 722 | rr3_ftr(rr3->dev, "Entering %s\n", __func__); |
| 723 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 724 | switch (urb->status) { |
| 725 | case 0: |
Andrew Vincer | dbea188 | 2011-11-08 12:43:45 -0300 | [diff] [blame] | 726 | ret = redrat3_get_ir_data(rr3, urb->actual_length); |
| 727 | if (!ret) { |
| 728 | /* no error, prepare to read more */ |
| 729 | redrat3_issue_async(rr3); |
| 730 | } |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 731 | break; |
| 732 | |
| 733 | case -ECONNRESET: |
| 734 | case -ENOENT: |
| 735 | case -ESHUTDOWN: |
| 736 | usb_unlink_urb(urb); |
| 737 | return; |
| 738 | |
| 739 | case -EPIPE: |
| 740 | default: |
| 741 | dev_warn(rr3->dev, "Error: urb status = %d\n", urb->status); |
| 742 | rr3->bytes_read = 0; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 743 | break; |
| 744 | } |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 745 | } |
| 746 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 747 | static u16 mod_freq_to_val(unsigned int mod_freq) |
| 748 | { |
| 749 | int mult = 6000000; |
| 750 | |
| 751 | /* Clk used in mod. freq. generation is CLK24/4. */ |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 752 | return 65536 - (mult / mod_freq); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 753 | } |
| 754 | |
Andrew Vincer | dbea188 | 2011-11-08 12:43:45 -0300 | [diff] [blame] | 755 | static int redrat3_set_tx_carrier(struct rc_dev *rcdev, u32 carrier) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 756 | { |
Andrew Vincer | dbea188 | 2011-11-08 12:43:45 -0300 | [diff] [blame] | 757 | struct redrat3_dev *rr3 = rcdev->priv; |
| 758 | struct device *dev = rr3->dev; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 759 | |
Andrew Vincer | dbea188 | 2011-11-08 12:43:45 -0300 | [diff] [blame] | 760 | rr3_dbg(dev, "Setting modulation frequency to %u", carrier); |
Dan Carpenter | 48cafec | 2012-09-11 07:11:24 -0300 | [diff] [blame] | 761 | if (carrier == 0) |
| 762 | return -EINVAL; |
| 763 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 764 | rr3->carrier = carrier; |
| 765 | |
| 766 | return carrier; |
| 767 | } |
| 768 | |
Andrew Vincer | dbea188 | 2011-11-08 12:43:45 -0300 | [diff] [blame] | 769 | static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf, |
| 770 | unsigned count) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 771 | { |
| 772 | struct redrat3_dev *rr3 = rcdev->priv; |
| 773 | struct device *dev = rr3->dev; |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 774 | struct redrat3_irdata *irdata = NULL; |
Sean Young | fa7b9ac | 2013-02-16 17:25:45 -0300 | [diff] [blame] | 775 | int ret, ret_len; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 776 | int lencheck, cur_sample_len, pipe; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 777 | int *sample_lens = NULL; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 778 | u8 curlencheck = 0; |
Sean Young | fa7b9ac | 2013-02-16 17:25:45 -0300 | [diff] [blame] | 779 | unsigned i, sendbuf_len; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 780 | |
| 781 | rr3_ftr(dev, "Entering %s\n", __func__); |
| 782 | |
| 783 | if (rr3->transmitting) { |
| 784 | dev_warn(dev, "%s: transmitter already in use\n", __func__); |
| 785 | return -EAGAIN; |
| 786 | } |
| 787 | |
Sean Young | 06eae25 | 2013-01-29 08:19:31 -0300 | [diff] [blame] | 788 | count = min_t(unsigned, count, RR3_MAX_SIG_SIZE - RR3_TX_TRAILER_LEN); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 789 | |
Andrew Vincer | dbea188 | 2011-11-08 12:43:45 -0300 | [diff] [blame] | 790 | /* rr3 will disable rc detector on transmit */ |
| 791 | rr3->det_enabled = false; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 792 | rr3->transmitting = true; |
| 793 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 794 | sample_lens = kzalloc(sizeof(int) * RR3_DRIVER_MAXLENS, GFP_KERNEL); |
| 795 | if (!sample_lens) { |
| 796 | ret = -ENOMEM; |
| 797 | goto out; |
| 798 | } |
| 799 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 800 | irdata = kzalloc(sizeof(*irdata), GFP_KERNEL); |
| 801 | if (!irdata) { |
Sean Young | 801b69f | 2013-02-16 17:25:43 -0300 | [diff] [blame] | 802 | ret = -ENOMEM; |
| 803 | goto out; |
| 804 | } |
| 805 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 806 | for (i = 0; i < count; i++) { |
Sean Young | 06eae25 | 2013-01-29 08:19:31 -0300 | [diff] [blame] | 807 | cur_sample_len = redrat3_us_to_len(txbuf[i]); |
Sean Young | 801b69f | 2013-02-16 17:25:43 -0300 | [diff] [blame] | 808 | if (cur_sample_len > 0xffff) { |
| 809 | dev_warn(dev, "transmit period of %uus truncated to %uus\n", |
| 810 | txbuf[i], redrat3_len_to_us(0xffff)); |
| 811 | cur_sample_len = 0xffff; |
| 812 | } |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 813 | for (lencheck = 0; lencheck < curlencheck; lencheck++) { |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 814 | if (sample_lens[lencheck] == cur_sample_len) |
| 815 | break; |
| 816 | } |
| 817 | if (lencheck == curlencheck) { |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 818 | rr3_dbg(dev, "txbuf[%d]=%u, pos %d, enc %u\n", |
| 819 | i, txbuf[i], curlencheck, cur_sample_len); |
Sean Young | 06eae25 | 2013-01-29 08:19:31 -0300 | [diff] [blame] | 820 | if (curlencheck < RR3_DRIVER_MAXLENS) { |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 821 | /* now convert the value to a proper |
| 822 | * rr3 value.. */ |
| 823 | sample_lens[curlencheck] = cur_sample_len; |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 824 | put_unaligned_be16(cur_sample_len, |
| 825 | &irdata->lens[curlencheck]); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 826 | curlencheck++; |
| 827 | } else { |
Sean Young | 06eae25 | 2013-01-29 08:19:31 -0300 | [diff] [blame] | 828 | count = i - 1; |
| 829 | break; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 830 | } |
| 831 | } |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 832 | irdata->sigdata[i] = lencheck; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 833 | } |
| 834 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 835 | irdata->sigdata[count] = RR3_END_OF_SIGNAL; |
| 836 | irdata->sigdata[count + 1] = RR3_END_OF_SIGNAL; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 837 | |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 838 | sendbuf_len = offsetof(struct redrat3_irdata, |
| 839 | sigdata[count + RR3_TX_TRAILER_LEN]); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 840 | /* fill in our packet header */ |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 841 | irdata->header.length = cpu_to_be16(sendbuf_len - |
| 842 | sizeof(struct redrat3_header)); |
| 843 | irdata->header.transfer_type = cpu_to_be16(RR3_MOD_SIGNAL_OUT); |
| 844 | irdata->pause = cpu_to_be32(redrat3_len_to_us(100)); |
| 845 | irdata->mod_freq_count = cpu_to_be16(mod_freq_to_val(rr3->carrier)); |
| 846 | irdata->no_lengths = curlencheck; |
| 847 | irdata->sig_size = cpu_to_be16(count + RR3_TX_TRAILER_LEN); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 848 | |
| 849 | pipe = usb_sndbulkpipe(rr3->udev, rr3->ep_out->bEndpointAddress); |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 850 | ret = usb_bulk_msg(rr3->udev, pipe, irdata, |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 851 | sendbuf_len, &ret_len, 10 * HZ); |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 852 | rr3_dbg(dev, "sent %d bytes, (ret %d)\n", ret_len, ret); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 853 | |
| 854 | /* now tell the hardware to transmit what we sent it */ |
| 855 | pipe = usb_rcvctrlpipe(rr3->udev, 0); |
| 856 | ret = usb_control_msg(rr3->udev, pipe, RR3_TX_SEND_SIGNAL, |
| 857 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 858 | 0, 0, irdata, 2, HZ * 10); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 859 | |
| 860 | if (ret < 0) |
| 861 | dev_err(dev, "Error: control msg send failed, rc %d\n", ret); |
| 862 | else |
Andrew Vincer | dbea188 | 2011-11-08 12:43:45 -0300 | [diff] [blame] | 863 | ret = count; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 864 | |
| 865 | out: |
| 866 | kfree(sample_lens); |
Sean Young | 4c055a5 | 2013-02-16 17:25:44 -0300 | [diff] [blame] | 867 | kfree(irdata); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 868 | |
| 869 | rr3->transmitting = false; |
Andrew Vincer | dbea188 | 2011-11-08 12:43:45 -0300 | [diff] [blame] | 870 | /* rr3 re-enables rc detector because it was enabled before */ |
| 871 | rr3->det_enabled = true; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 872 | |
| 873 | return ret; |
| 874 | } |
| 875 | |
| 876 | static struct rc_dev *redrat3_init_rc_dev(struct redrat3_dev *rr3) |
| 877 | { |
| 878 | struct device *dev = rr3->dev; |
| 879 | struct rc_dev *rc; |
| 880 | int ret = -ENODEV; |
| 881 | u16 prod = le16_to_cpu(rr3->udev->descriptor.idProduct); |
| 882 | |
| 883 | rc = rc_allocate_device(); |
| 884 | if (!rc) { |
| 885 | dev_err(dev, "remote input dev allocation failed\n"); |
| 886 | goto out; |
| 887 | } |
| 888 | |
| 889 | snprintf(rr3->name, sizeof(rr3->name), "RedRat3%s " |
| 890 | "Infrared Remote Transceiver (%04x:%04x)", |
| 891 | prod == USB_RR3IIUSB_PRODUCT_ID ? "-II" : "", |
| 892 | le16_to_cpu(rr3->udev->descriptor.idVendor), prod); |
| 893 | |
| 894 | usb_make_path(rr3->udev, rr3->phys, sizeof(rr3->phys)); |
| 895 | |
| 896 | rc->input_name = rr3->name; |
| 897 | rc->input_phys = rr3->phys; |
| 898 | usb_to_input_id(rr3->udev, &rc->input_id); |
| 899 | rc->dev.parent = dev; |
| 900 | rc->priv = rr3; |
| 901 | rc->driver_type = RC_DRIVER_IR_RAW; |
David Härdeman | c003ab1 | 2012-10-11 19:11:54 -0300 | [diff] [blame] | 902 | rc->allowed_protos = RC_BIT_ALL; |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 903 | rc->timeout = US_TO_NS(2750); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 904 | rc->tx_ir = redrat3_transmit_ir; |
| 905 | rc->s_tx_carrier = redrat3_set_tx_carrier; |
| 906 | rc->driver_name = DRIVER_NAME; |
Sean Young | 06eae25 | 2013-01-29 08:19:31 -0300 | [diff] [blame] | 907 | rc->rx_resolution = US_TO_NS(2); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 908 | rc->map_name = RC_MAP_HAUPPAUGE; |
| 909 | |
| 910 | ret = rc_register_device(rc); |
| 911 | if (ret < 0) { |
| 912 | dev_err(dev, "remote dev registration failed\n"); |
| 913 | goto out; |
| 914 | } |
| 915 | |
| 916 | return rc; |
| 917 | |
| 918 | out: |
| 919 | rc_free_device(rc); |
| 920 | return NULL; |
| 921 | } |
| 922 | |
Greg Kroah-Hartman | 4c62e97 | 2012-12-21 13:17:53 -0800 | [diff] [blame] | 923 | static int redrat3_dev_probe(struct usb_interface *intf, |
| 924 | const struct usb_device_id *id) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 925 | { |
| 926 | struct usb_device *udev = interface_to_usbdev(intf); |
| 927 | struct device *dev = &intf->dev; |
| 928 | struct usb_host_interface *uhi; |
| 929 | struct redrat3_dev *rr3; |
| 930 | struct usb_endpoint_descriptor *ep; |
| 931 | struct usb_endpoint_descriptor *ep_in = NULL; |
| 932 | struct usb_endpoint_descriptor *ep_out = NULL; |
| 933 | u8 addr, attrs; |
| 934 | int pipe, i; |
| 935 | int retval = -ENOMEM; |
| 936 | |
| 937 | rr3_ftr(dev, "%s called\n", __func__); |
| 938 | |
| 939 | uhi = intf->cur_altsetting; |
| 940 | |
| 941 | /* find our bulk-in and bulk-out endpoints */ |
| 942 | for (i = 0; i < uhi->desc.bNumEndpoints; ++i) { |
| 943 | ep = &uhi->endpoint[i].desc; |
| 944 | addr = ep->bEndpointAddress; |
| 945 | attrs = ep->bmAttributes; |
| 946 | |
| 947 | if ((ep_in == NULL) && |
| 948 | ((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) && |
| 949 | ((attrs & USB_ENDPOINT_XFERTYPE_MASK) == |
| 950 | USB_ENDPOINT_XFER_BULK)) { |
| 951 | rr3_dbg(dev, "found bulk-in endpoint at 0x%02x\n", |
| 952 | ep->bEndpointAddress); |
| 953 | /* data comes in on 0x82, 0x81 is for other data... */ |
| 954 | if (ep->bEndpointAddress == RR3_BULK_IN_EP_ADDR) |
| 955 | ep_in = ep; |
| 956 | } |
| 957 | |
| 958 | if ((ep_out == NULL) && |
| 959 | ((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) && |
| 960 | ((attrs & USB_ENDPOINT_XFERTYPE_MASK) == |
| 961 | USB_ENDPOINT_XFER_BULK)) { |
| 962 | rr3_dbg(dev, "found bulk-out endpoint at 0x%02x\n", |
| 963 | ep->bEndpointAddress); |
| 964 | ep_out = ep; |
| 965 | } |
| 966 | } |
| 967 | |
| 968 | if (!ep_in || !ep_out) { |
| 969 | dev_err(dev, "Couldn't find both in and out endpoints\n"); |
| 970 | retval = -ENODEV; |
| 971 | goto no_endpoints; |
| 972 | } |
| 973 | |
| 974 | /* allocate memory for our device state and initialize it */ |
| 975 | rr3 = kzalloc(sizeof(*rr3), GFP_KERNEL); |
| 976 | if (rr3 == NULL) { |
| 977 | dev_err(dev, "Memory allocation failure\n"); |
Dan Carpenter | 7eb7571 | 2011-05-26 05:55:08 -0300 | [diff] [blame] | 978 | goto no_endpoints; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 979 | } |
| 980 | |
| 981 | rr3->dev = &intf->dev; |
| 982 | |
| 983 | /* set up bulk-in endpoint */ |
| 984 | rr3->read_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 985 | if (!rr3->read_urb) { |
| 986 | dev_err(dev, "Read urb allocation failure\n"); |
| 987 | goto error; |
| 988 | } |
| 989 | |
| 990 | rr3->ep_in = ep_in; |
Sean Young | fa7b9ac | 2013-02-16 17:25:45 -0300 | [diff] [blame] | 991 | rr3->bulk_in_buf = usb_alloc_coherent(udev, |
| 992 | le16_to_cpu(ep_in->wMaxPacketSize), GFP_ATOMIC, &rr3->dma_in); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 993 | if (!rr3->bulk_in_buf) { |
| 994 | dev_err(dev, "Read buffer allocation failure\n"); |
| 995 | goto error; |
| 996 | } |
| 997 | |
| 998 | pipe = usb_rcvbulkpipe(udev, ep_in->bEndpointAddress); |
Sean Young | fa7b9ac | 2013-02-16 17:25:45 -0300 | [diff] [blame] | 999 | usb_fill_bulk_urb(rr3->read_urb, udev, pipe, rr3->bulk_in_buf, |
| 1000 | le16_to_cpu(ep_in->wMaxPacketSize), redrat3_handle_async, rr3); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 1001 | |
| 1002 | rr3->ep_out = ep_out; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 1003 | rr3->udev = udev; |
| 1004 | |
| 1005 | redrat3_reset(rr3); |
| 1006 | redrat3_get_firmware_rev(rr3); |
| 1007 | |
| 1008 | /* might be all we need to do? */ |
| 1009 | retval = redrat3_enable_detector(rr3); |
| 1010 | if (retval < 0) |
| 1011 | goto error; |
| 1012 | |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 1013 | /* store current hardware timeout, in us, will use for kfifo resets */ |
| 1014 | rr3->hw_timeout = redrat3_get_timeout(rr3); |
| 1015 | |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 1016 | /* default.. will get overridden by any sends with a freq defined */ |
| 1017 | rr3->carrier = 38000; |
| 1018 | |
| 1019 | rr3->rc = redrat3_init_rc_dev(rr3); |
Peter Senna Tschudin | 6ea7cf7 | 2012-09-04 08:05:05 -0300 | [diff] [blame] | 1020 | if (!rr3->rc) { |
| 1021 | retval = -ENOMEM; |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 1022 | goto error; |
Peter Senna Tschudin | 6ea7cf7 | 2012-09-04 08:05:05 -0300 | [diff] [blame] | 1023 | } |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 1024 | setup_timer(&rr3->rx_timeout, redrat3_rx_timeout, (unsigned long)rr3); |
| 1025 | |
| 1026 | /* we can register the device now, as it is ready */ |
| 1027 | usb_set_intfdata(intf, rr3); |
| 1028 | |
| 1029 | rr3_ftr(dev, "Exiting %s\n", __func__); |
| 1030 | return 0; |
| 1031 | |
| 1032 | error: |
| 1033 | redrat3_delete(rr3, rr3->udev); |
| 1034 | |
| 1035 | no_endpoints: |
| 1036 | dev_err(dev, "%s: retval = %x", __func__, retval); |
| 1037 | |
| 1038 | return retval; |
| 1039 | } |
| 1040 | |
Greg Kroah-Hartman | 4c62e97 | 2012-12-21 13:17:53 -0800 | [diff] [blame] | 1041 | static void redrat3_dev_disconnect(struct usb_interface *intf) |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 1042 | { |
| 1043 | struct usb_device *udev = interface_to_usbdev(intf); |
| 1044 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); |
| 1045 | |
| 1046 | rr3_ftr(&intf->dev, "Entering %s\n", __func__); |
| 1047 | |
| 1048 | if (!rr3) |
| 1049 | return; |
| 1050 | |
| 1051 | redrat3_disable_detector(rr3); |
| 1052 | |
| 1053 | usb_set_intfdata(intf, NULL); |
| 1054 | rc_unregister_device(rr3->rc); |
Jarod Wilson | c53f9f0 | 2011-07-13 18:26:07 -0300 | [diff] [blame] | 1055 | del_timer_sync(&rr3->rx_timeout); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 1056 | redrat3_delete(rr3, udev); |
| 1057 | |
| 1058 | rr3_ftr(&intf->dev, "RedRat3 IR Transceiver now disconnected\n"); |
| 1059 | } |
| 1060 | |
| 1061 | static int redrat3_dev_suspend(struct usb_interface *intf, pm_message_t message) |
| 1062 | { |
| 1063 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); |
| 1064 | rr3_ftr(rr3->dev, "suspend\n"); |
| 1065 | usb_kill_urb(rr3->read_urb); |
| 1066 | return 0; |
| 1067 | } |
| 1068 | |
| 1069 | static int redrat3_dev_resume(struct usb_interface *intf) |
| 1070 | { |
| 1071 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); |
| 1072 | rr3_ftr(rr3->dev, "resume\n"); |
| 1073 | if (usb_submit_urb(rr3->read_urb, GFP_ATOMIC)) |
| 1074 | return -EIO; |
| 1075 | return 0; |
| 1076 | } |
| 1077 | |
| 1078 | static struct usb_driver redrat3_dev_driver = { |
| 1079 | .name = DRIVER_NAME, |
| 1080 | .probe = redrat3_dev_probe, |
Greg Kroah-Hartman | 4c62e97 | 2012-12-21 13:17:53 -0800 | [diff] [blame] | 1081 | .disconnect = redrat3_dev_disconnect, |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 1082 | .suspend = redrat3_dev_suspend, |
| 1083 | .resume = redrat3_dev_resume, |
| 1084 | .reset_resume = redrat3_dev_resume, |
| 1085 | .id_table = redrat3_dev_table |
| 1086 | }; |
| 1087 | |
Greg Kroah-Hartman | ecb3b2b | 2011-11-18 09:46:12 -0800 | [diff] [blame] | 1088 | module_usb_driver(redrat3_dev_driver); |
Jarod Wilson | 2154be6 | 2011-05-04 14:02:42 -0300 | [diff] [blame] | 1089 | |
| 1090 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 1091 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 1092 | MODULE_AUTHOR(DRIVER_AUTHOR2); |
| 1093 | MODULE_LICENSE("GPL"); |
| 1094 | MODULE_DEVICE_TABLE(usb, redrat3_dev_table); |
| 1095 | |
| 1096 | module_param(debug, int, S_IRUGO | S_IWUSR); |
| 1097 | MODULE_PARM_DESC(debug, "Enable module debug spew. 0 = no debugging (default) " |
| 1098 | "0x1 = standard debug messages, 0x2 = function tracing debug. " |
| 1099 | "Flag bits are addative (i.e., 0x3 for both debug types)."); |