Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1 | /* |
| 2 | * HackRF driver |
| 3 | * |
| 4 | * Copyright (C) 2014 Antti Palosaari <crope@iki.fi> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | */ |
| 16 | |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/slab.h> |
| 19 | #include <linux/usb.h> |
| 20 | #include <media/v4l2-device.h> |
| 21 | #include <media/v4l2-ioctl.h> |
| 22 | #include <media/v4l2-ctrls.h> |
| 23 | #include <media/v4l2-event.h> |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 24 | #include <media/videobuf2-v4l2.h> |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 25 | #include <media/videobuf2-vmalloc.h> |
| 26 | |
Antti Palosaari | d47fa53 | 2015-10-23 20:01:31 -0200 | [diff] [blame] | 27 | /* |
| 28 | * Used Avago MGA-81563 RF amplifier could be destroyed pretty easily with too |
| 29 | * strong signal or transmitting to bad antenna. |
| 30 | * Set RF gain control to 'grabbed' state by default for sure. |
| 31 | */ |
| 32 | static bool hackrf_enable_rf_gain_ctrl; |
| 33 | module_param_named(enable_rf_gain_ctrl, hackrf_enable_rf_gain_ctrl, bool, 0644); |
| 34 | MODULE_PARM_DESC(enable_rf_gain_ctrl, "enable RX/TX RF amplifier control (warn: could damage amplifier)"); |
| 35 | |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 36 | /* HackRF USB API commands (from HackRF Library) */ |
| 37 | enum { |
| 38 | CMD_SET_TRANSCEIVER_MODE = 0x01, |
| 39 | CMD_SAMPLE_RATE_SET = 0x06, |
| 40 | CMD_BASEBAND_FILTER_BANDWIDTH_SET = 0x07, |
| 41 | CMD_BOARD_ID_READ = 0x0e, |
| 42 | CMD_VERSION_STRING_READ = 0x0f, |
| 43 | CMD_SET_FREQ = 0x10, |
Antti Palosaari | b3ae296 | 2015-10-10 13:51:04 -0300 | [diff] [blame] | 44 | CMD_AMP_ENABLE = 0x11, |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 45 | CMD_SET_LNA_GAIN = 0x13, |
| 46 | CMD_SET_VGA_GAIN = 0x14, |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 47 | CMD_SET_TXVGA_GAIN = 0x15, |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 48 | }; |
| 49 | |
| 50 | /* |
| 51 | * bEndpointAddress 0x81 EP 1 IN |
| 52 | * Transfer Type Bulk |
| 53 | * wMaxPacketSize 0x0200 1x 512 bytes |
| 54 | */ |
| 55 | #define MAX_BULK_BUFS (6) |
| 56 | #define BULK_BUFFER_SIZE (128 * 512) |
| 57 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 58 | static const struct v4l2_frequency_band bands_adc_dac[] = { |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 59 | { |
| 60 | .tuner = 0, |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 61 | .type = V4L2_TUNER_SDR, |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 62 | .index = 0, |
| 63 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, |
| 64 | .rangelow = 200000, |
| 65 | .rangehigh = 24000000, |
| 66 | }, |
| 67 | }; |
| 68 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 69 | static const struct v4l2_frequency_band bands_rx_tx[] = { |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 70 | { |
| 71 | .tuner = 1, |
| 72 | .type = V4L2_TUNER_RF, |
| 73 | .index = 0, |
| 74 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, |
| 75 | .rangelow = 1, |
Mauro Carvalho Chehab | 720b055 | 2014-09-21 20:35:05 -0300 | [diff] [blame] | 76 | .rangehigh = 4294967294LL, /* max u32, hw goes over 7GHz */ |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 77 | }, |
| 78 | }; |
| 79 | |
| 80 | /* stream formats */ |
| 81 | struct hackrf_format { |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 82 | u32 pixelformat; |
| 83 | u32 buffersize; |
| 84 | }; |
| 85 | |
| 86 | /* format descriptions for capture and preview */ |
| 87 | static struct hackrf_format formats[] = { |
| 88 | { |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 89 | .pixelformat = V4L2_SDR_FMT_CS8, |
| 90 | .buffersize = BULK_BUFFER_SIZE, |
| 91 | }, |
| 92 | }; |
| 93 | |
| 94 | static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); |
| 95 | |
| 96 | /* intermediate buffers with raw data from the USB device */ |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 97 | struct hackrf_buffer { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 98 | struct vb2_v4l2_buffer vb; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 99 | struct list_head list; |
| 100 | }; |
| 101 | |
| 102 | struct hackrf_dev { |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 103 | #define USB_STATE_URB_BUF 1 /* XXX: set manually */ |
| 104 | #define RX_ON 4 |
| 105 | #define TX_ON 5 |
| 106 | #define RX_ADC_FREQUENCY 11 |
| 107 | #define TX_DAC_FREQUENCY 12 |
| 108 | #define RX_BANDWIDTH 13 |
| 109 | #define TX_BANDWIDTH 14 |
| 110 | #define RX_RF_FREQUENCY 15 |
| 111 | #define TX_RF_FREQUENCY 16 |
| 112 | #define RX_RF_GAIN 17 |
| 113 | #define TX_RF_GAIN 18 |
| 114 | #define RX_IF_GAIN 19 |
| 115 | #define RX_LNA_GAIN 20 |
| 116 | #define TX_LNA_GAIN 21 |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 117 | unsigned long flags; |
| 118 | |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 119 | struct usb_interface *intf; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 120 | struct device *dev; |
| 121 | struct usb_device *udev; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 122 | struct video_device rx_vdev; |
| 123 | struct video_device tx_vdev; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 124 | struct v4l2_device v4l2_dev; |
| 125 | |
| 126 | /* videobuf2 queue and queued buffers list */ |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 127 | struct vb2_queue rx_vb2_queue; |
| 128 | struct vb2_queue tx_vb2_queue; |
| 129 | struct list_head rx_buffer_list; |
| 130 | struct list_head tx_buffer_list; |
| 131 | spinlock_t buffer_list_lock; /* Protects buffer_list */ |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 132 | unsigned sequence; /* Buffer sequence counter */ |
| 133 | unsigned int vb_full; /* vb is full and packets dropped */ |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 134 | unsigned int vb_empty; /* vb is empty and packets dropped */ |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 135 | |
| 136 | /* Note if taking both locks v4l2_lock must always be locked first! */ |
| 137 | struct mutex v4l2_lock; /* Protects everything else */ |
| 138 | struct mutex vb_queue_lock; /* Protects vb_queue */ |
| 139 | |
| 140 | struct urb *urb_list[MAX_BULK_BUFS]; |
| 141 | int buf_num; |
| 142 | unsigned long buf_size; |
| 143 | u8 *buf_list[MAX_BULK_BUFS]; |
| 144 | dma_addr_t dma_addr[MAX_BULK_BUFS]; |
| 145 | int urbs_initialized; |
| 146 | int urbs_submitted; |
| 147 | |
| 148 | /* USB control message buffer */ |
| 149 | #define BUF_SIZE 24 |
| 150 | u8 buf[BUF_SIZE]; |
| 151 | |
| 152 | /* Current configuration */ |
| 153 | unsigned int f_adc; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 154 | unsigned int f_dac; |
| 155 | unsigned int f_rx; |
| 156 | unsigned int f_tx; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 157 | u32 pixelformat; |
| 158 | u32 buffersize; |
| 159 | |
| 160 | /* Controls */ |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 161 | struct v4l2_ctrl_handler rx_ctrl_handler; |
| 162 | struct v4l2_ctrl *rx_bandwidth_auto; |
| 163 | struct v4l2_ctrl *rx_bandwidth; |
| 164 | struct v4l2_ctrl *rx_rf_gain; |
| 165 | struct v4l2_ctrl *rx_lna_gain; |
| 166 | struct v4l2_ctrl *rx_if_gain; |
| 167 | struct v4l2_ctrl_handler tx_ctrl_handler; |
| 168 | struct v4l2_ctrl *tx_bandwidth_auto; |
| 169 | struct v4l2_ctrl *tx_bandwidth; |
| 170 | struct v4l2_ctrl *tx_rf_gain; |
| 171 | struct v4l2_ctrl *tx_lna_gain; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 172 | |
| 173 | /* Sample rate calc */ |
| 174 | unsigned long jiffies_next; |
| 175 | unsigned int sample; |
| 176 | unsigned int sample_measured; |
| 177 | }; |
| 178 | |
| 179 | #define hackrf_dbg_usb_control_msg(_dev, _r, _t, _v, _i, _b, _l) { \ |
| 180 | char *_direction; \ |
| 181 | if (_t & USB_DIR_IN) \ |
| 182 | _direction = "<<<"; \ |
| 183 | else \ |
| 184 | _direction = ">>>"; \ |
| 185 | dev_dbg(_dev, "%02x %02x %02x %02x %02x %02x %02x %02x %s %*ph\n", \ |
| 186 | _t, _r, _v & 0xff, _v >> 8, _i & 0xff, \ |
| 187 | _i >> 8, _l & 0xff, _l >> 8, _direction, _l, _b); \ |
| 188 | } |
| 189 | |
| 190 | /* execute firmware command */ |
| 191 | static int hackrf_ctrl_msg(struct hackrf_dev *dev, u8 request, u16 value, |
| 192 | u16 index, u8 *data, u16 size) |
| 193 | { |
| 194 | int ret; |
| 195 | unsigned int pipe; |
| 196 | u8 requesttype; |
| 197 | |
| 198 | switch (request) { |
| 199 | case CMD_SET_TRANSCEIVER_MODE: |
| 200 | case CMD_SET_FREQ: |
Antti Palosaari | b3ae296 | 2015-10-10 13:51:04 -0300 | [diff] [blame] | 201 | case CMD_AMP_ENABLE: |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 202 | case CMD_SAMPLE_RATE_SET: |
| 203 | case CMD_BASEBAND_FILTER_BANDWIDTH_SET: |
| 204 | pipe = usb_sndctrlpipe(dev->udev, 0); |
| 205 | requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT); |
| 206 | break; |
| 207 | case CMD_BOARD_ID_READ: |
| 208 | case CMD_VERSION_STRING_READ: |
| 209 | case CMD_SET_LNA_GAIN: |
| 210 | case CMD_SET_VGA_GAIN: |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 211 | case CMD_SET_TXVGA_GAIN: |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 212 | pipe = usb_rcvctrlpipe(dev->udev, 0); |
| 213 | requesttype = (USB_TYPE_VENDOR | USB_DIR_IN); |
| 214 | break; |
| 215 | default: |
| 216 | dev_err(dev->dev, "Unknown command %02x\n", request); |
| 217 | ret = -EINVAL; |
| 218 | goto err; |
| 219 | } |
| 220 | |
| 221 | /* write request */ |
| 222 | if (!(requesttype & USB_DIR_IN)) |
| 223 | memcpy(dev->buf, data, size); |
| 224 | |
| 225 | ret = usb_control_msg(dev->udev, pipe, request, requesttype, value, |
| 226 | index, dev->buf, size, 1000); |
| 227 | hackrf_dbg_usb_control_msg(dev->dev, request, requesttype, value, |
| 228 | index, dev->buf, size); |
| 229 | if (ret < 0) { |
| 230 | dev_err(dev->dev, "usb_control_msg() failed %d request %02x\n", |
| 231 | ret, request); |
| 232 | goto err; |
| 233 | } |
| 234 | |
| 235 | /* read request */ |
| 236 | if (requesttype & USB_DIR_IN) |
| 237 | memcpy(data, dev->buf, size); |
| 238 | |
| 239 | return 0; |
| 240 | err: |
| 241 | return ret; |
| 242 | } |
| 243 | |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 244 | static int hackrf_set_params(struct hackrf_dev *dev) |
| 245 | { |
| 246 | struct usb_interface *intf = dev->intf; |
| 247 | int ret, i; |
| 248 | u8 buf[8], u8tmp; |
| 249 | unsigned int uitmp, uitmp1, uitmp2; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 250 | const bool rx = test_bit(RX_ON, &dev->flags); |
| 251 | const bool tx = test_bit(TX_ON, &dev->flags); |
| 252 | static const struct { |
| 253 | u32 freq; |
| 254 | } bandwidth_lut[] = { |
| 255 | { 1750000}, /* 1.75 MHz */ |
| 256 | { 2500000}, /* 2.5 MHz */ |
| 257 | { 3500000}, /* 3.5 MHz */ |
| 258 | { 5000000}, /* 5 MHz */ |
| 259 | { 5500000}, /* 5.5 MHz */ |
| 260 | { 6000000}, /* 6 MHz */ |
| 261 | { 7000000}, /* 7 MHz */ |
| 262 | { 8000000}, /* 8 MHz */ |
| 263 | { 9000000}, /* 9 MHz */ |
| 264 | {10000000}, /* 10 MHz */ |
| 265 | {12000000}, /* 12 MHz */ |
| 266 | {14000000}, /* 14 MHz */ |
| 267 | {15000000}, /* 15 MHz */ |
| 268 | {20000000}, /* 20 MHz */ |
| 269 | {24000000}, /* 24 MHz */ |
| 270 | {28000000}, /* 28 MHz */ |
| 271 | }; |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 272 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 273 | if (!rx && !tx) { |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 274 | dev_dbg(&intf->dev, "device is sleeping\n"); |
| 275 | return 0; |
| 276 | } |
| 277 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 278 | /* ADC / DAC frequency */ |
| 279 | if (rx && test_and_clear_bit(RX_ADC_FREQUENCY, &dev->flags)) { |
| 280 | dev_dbg(&intf->dev, "RX ADC frequency=%u Hz\n", dev->f_adc); |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 281 | uitmp1 = dev->f_adc; |
| 282 | uitmp2 = 1; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 283 | set_bit(TX_DAC_FREQUENCY, &dev->flags); |
| 284 | } else if (tx && test_and_clear_bit(TX_DAC_FREQUENCY, &dev->flags)) { |
| 285 | dev_dbg(&intf->dev, "TX DAC frequency=%u Hz\n", dev->f_dac); |
| 286 | uitmp1 = dev->f_dac; |
| 287 | uitmp2 = 1; |
| 288 | set_bit(RX_ADC_FREQUENCY, &dev->flags); |
| 289 | } else { |
| 290 | uitmp1 = uitmp2 = 0; |
| 291 | } |
| 292 | if (uitmp1 || uitmp2) { |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 293 | buf[0] = (uitmp1 >> 0) & 0xff; |
| 294 | buf[1] = (uitmp1 >> 8) & 0xff; |
| 295 | buf[2] = (uitmp1 >> 16) & 0xff; |
| 296 | buf[3] = (uitmp1 >> 24) & 0xff; |
| 297 | buf[4] = (uitmp2 >> 0) & 0xff; |
| 298 | buf[5] = (uitmp2 >> 8) & 0xff; |
| 299 | buf[6] = (uitmp2 >> 16) & 0xff; |
| 300 | buf[7] = (uitmp2 >> 24) & 0xff; |
| 301 | ret = hackrf_ctrl_msg(dev, CMD_SAMPLE_RATE_SET, 0, 0, buf, 8); |
| 302 | if (ret) |
| 303 | goto err; |
| 304 | } |
| 305 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 306 | /* bandwidth */ |
| 307 | if (rx && test_and_clear_bit(RX_BANDWIDTH, &dev->flags)) { |
| 308 | if (dev->rx_bandwidth_auto->val == true) |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 309 | uitmp = dev->f_adc; |
| 310 | else |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 311 | uitmp = dev->rx_bandwidth->val; |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 312 | |
| 313 | for (i = 0; i < ARRAY_SIZE(bandwidth_lut); i++) { |
| 314 | if (uitmp <= bandwidth_lut[i].freq) { |
| 315 | uitmp = bandwidth_lut[i].freq; |
| 316 | break; |
| 317 | } |
| 318 | } |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 319 | dev->rx_bandwidth->val = uitmp; |
| 320 | dev->rx_bandwidth->cur.val = uitmp; |
| 321 | dev_dbg(&intf->dev, "RX bandwidth selected=%u\n", uitmp); |
| 322 | set_bit(TX_BANDWIDTH, &dev->flags); |
| 323 | } else if (tx && test_and_clear_bit(TX_BANDWIDTH, &dev->flags)) { |
| 324 | if (dev->tx_bandwidth_auto->val == true) |
| 325 | uitmp = dev->f_dac; |
| 326 | else |
| 327 | uitmp = dev->tx_bandwidth->val; |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 328 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 329 | for (i = 0; i < ARRAY_SIZE(bandwidth_lut); i++) { |
| 330 | if (uitmp <= bandwidth_lut[i].freq) { |
| 331 | uitmp = bandwidth_lut[i].freq; |
| 332 | break; |
| 333 | } |
| 334 | } |
| 335 | dev->tx_bandwidth->val = uitmp; |
| 336 | dev->tx_bandwidth->cur.val = uitmp; |
| 337 | dev_dbg(&intf->dev, "TX bandwidth selected=%u\n", uitmp); |
| 338 | set_bit(RX_BANDWIDTH, &dev->flags); |
| 339 | } else { |
| 340 | uitmp = 0; |
| 341 | } |
| 342 | if (uitmp) { |
| 343 | uitmp1 = uitmp2 = 0; |
| 344 | uitmp1 |= ((uitmp >> 0) & 0xff) << 0; |
| 345 | uitmp1 |= ((uitmp >> 8) & 0xff) << 8; |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 346 | uitmp2 |= ((uitmp >> 16) & 0xff) << 0; |
| 347 | uitmp2 |= ((uitmp >> 24) & 0xff) << 8; |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 348 | ret = hackrf_ctrl_msg(dev, CMD_BASEBAND_FILTER_BANDWIDTH_SET, |
| 349 | uitmp1, uitmp2, NULL, 0); |
| 350 | if (ret) |
| 351 | goto err; |
| 352 | } |
| 353 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 354 | /* RX / TX RF frequency */ |
| 355 | if (rx && test_and_clear_bit(RX_RF_FREQUENCY, &dev->flags)) { |
| 356 | dev_dbg(&intf->dev, "RX RF frequency=%u Hz\n", dev->f_rx); |
| 357 | uitmp1 = dev->f_rx / 1000000; |
| 358 | uitmp2 = dev->f_rx % 1000000; |
| 359 | set_bit(TX_RF_FREQUENCY, &dev->flags); |
| 360 | } else if (tx && test_and_clear_bit(TX_RF_FREQUENCY, &dev->flags)) { |
| 361 | dev_dbg(&intf->dev, "TX RF frequency=%u Hz\n", dev->f_tx); |
| 362 | uitmp1 = dev->f_tx / 1000000; |
| 363 | uitmp2 = dev->f_tx % 1000000; |
| 364 | set_bit(RX_RF_FREQUENCY, &dev->flags); |
| 365 | } else { |
| 366 | uitmp1 = uitmp2 = 0; |
| 367 | } |
| 368 | if (uitmp1 || uitmp2) { |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 369 | buf[0] = (uitmp1 >> 0) & 0xff; |
| 370 | buf[1] = (uitmp1 >> 8) & 0xff; |
| 371 | buf[2] = (uitmp1 >> 16) & 0xff; |
| 372 | buf[3] = (uitmp1 >> 24) & 0xff; |
| 373 | buf[4] = (uitmp2 >> 0) & 0xff; |
| 374 | buf[5] = (uitmp2 >> 8) & 0xff; |
| 375 | buf[6] = (uitmp2 >> 16) & 0xff; |
| 376 | buf[7] = (uitmp2 >> 24) & 0xff; |
| 377 | ret = hackrf_ctrl_msg(dev, CMD_SET_FREQ, 0, 0, buf, 8); |
| 378 | if (ret) |
| 379 | goto err; |
| 380 | } |
| 381 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 382 | /* RX RF gain */ |
| 383 | if (rx && test_and_clear_bit(RX_RF_GAIN, &dev->flags)) { |
| 384 | dev_dbg(&intf->dev, "RX RF gain val=%d->%d\n", |
| 385 | dev->rx_rf_gain->cur.val, dev->rx_rf_gain->val); |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 386 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 387 | u8tmp = (dev->rx_rf_gain->val) ? 1 : 0; |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 388 | ret = hackrf_ctrl_msg(dev, CMD_AMP_ENABLE, u8tmp, 0, NULL, 0); |
| 389 | if (ret) |
| 390 | goto err; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 391 | set_bit(TX_RF_GAIN, &dev->flags); |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 392 | } |
| 393 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 394 | /* TX RF gain */ |
| 395 | if (tx && test_and_clear_bit(TX_RF_GAIN, &dev->flags)) { |
| 396 | dev_dbg(&intf->dev, "TX RF gain val=%d->%d\n", |
| 397 | dev->tx_rf_gain->cur.val, dev->tx_rf_gain->val); |
| 398 | |
| 399 | u8tmp = (dev->tx_rf_gain->val) ? 1 : 0; |
| 400 | ret = hackrf_ctrl_msg(dev, CMD_AMP_ENABLE, u8tmp, 0, NULL, 0); |
| 401 | if (ret) |
| 402 | goto err; |
| 403 | set_bit(RX_RF_GAIN, &dev->flags); |
| 404 | } |
| 405 | |
| 406 | /* RX LNA gain */ |
| 407 | if (rx && test_and_clear_bit(RX_LNA_GAIN, &dev->flags)) { |
| 408 | dev_dbg(dev->dev, "RX LNA gain val=%d->%d\n", |
| 409 | dev->rx_lna_gain->cur.val, dev->rx_lna_gain->val); |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 410 | |
| 411 | ret = hackrf_ctrl_msg(dev, CMD_SET_LNA_GAIN, 0, |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 412 | dev->rx_lna_gain->val, &u8tmp, 1); |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 413 | if (ret) |
| 414 | goto err; |
| 415 | } |
| 416 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 417 | /* RX IF gain */ |
| 418 | if (rx && test_and_clear_bit(RX_IF_GAIN, &dev->flags)) { |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 419 | dev_dbg(&intf->dev, "IF gain val=%d->%d\n", |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 420 | dev->rx_if_gain->cur.val, dev->rx_if_gain->val); |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 421 | |
| 422 | ret = hackrf_ctrl_msg(dev, CMD_SET_VGA_GAIN, 0, |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 423 | dev->rx_if_gain->val, &u8tmp, 1); |
| 424 | if (ret) |
| 425 | goto err; |
| 426 | } |
| 427 | |
| 428 | /* TX LNA gain */ |
| 429 | if (tx && test_and_clear_bit(TX_LNA_GAIN, &dev->flags)) { |
| 430 | dev_dbg(&intf->dev, "TX LNA gain val=%d->%d\n", |
| 431 | dev->tx_lna_gain->cur.val, dev->tx_lna_gain->val); |
| 432 | |
| 433 | ret = hackrf_ctrl_msg(dev, CMD_SET_TXVGA_GAIN, 0, |
| 434 | dev->tx_lna_gain->val, &u8tmp, 1); |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 435 | if (ret) |
| 436 | goto err; |
| 437 | } |
| 438 | |
| 439 | return 0; |
| 440 | err: |
| 441 | dev_dbg(&intf->dev, "failed=%d\n", ret); |
| 442 | return ret; |
| 443 | } |
| 444 | |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 445 | /* Private functions */ |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 446 | static struct hackrf_buffer *hackrf_get_next_buffer(struct hackrf_dev *dev, |
| 447 | struct list_head *buffer_list) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 448 | { |
| 449 | unsigned long flags; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 450 | struct hackrf_buffer *buffer = NULL; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 451 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 452 | spin_lock_irqsave(&dev->buffer_list_lock, flags); |
| 453 | if (list_empty(buffer_list)) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 454 | goto leave; |
| 455 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 456 | buffer = list_entry(buffer_list->next, struct hackrf_buffer, list); |
| 457 | list_del(&buffer->list); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 458 | leave: |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 459 | spin_unlock_irqrestore(&dev->buffer_list_lock, flags); |
| 460 | return buffer; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 461 | } |
| 462 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 463 | static void hackrf_copy_stream(struct hackrf_dev *dev, void *dst, void *src, |
| 464 | unsigned int src_len) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 465 | { |
| 466 | memcpy(dst, src, src_len); |
| 467 | |
| 468 | /* calculate sample rate and output it in 10 seconds intervals */ |
| 469 | if (unlikely(time_is_before_jiffies(dev->jiffies_next))) { |
| 470 | #define MSECS 10000UL |
| 471 | unsigned int msecs = jiffies_to_msecs(jiffies - |
| 472 | dev->jiffies_next + msecs_to_jiffies(MSECS)); |
| 473 | unsigned int samples = dev->sample - dev->sample_measured; |
| 474 | |
| 475 | dev->jiffies_next = jiffies + msecs_to_jiffies(MSECS); |
| 476 | dev->sample_measured = dev->sample; |
| 477 | dev_dbg(dev->dev, "slen=%u samples=%u msecs=%u sample rate=%lu\n", |
| 478 | src_len, samples, msecs, |
| 479 | samples * 1000UL / msecs); |
| 480 | } |
| 481 | |
| 482 | /* total number of samples */ |
| 483 | dev->sample += src_len / 2; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | /* |
| 487 | * This gets called for the bulk stream pipe. This is done in interrupt |
| 488 | * time, so it has to be fast, not crash, and not stall. Neat. |
| 489 | */ |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 490 | static void hackrf_urb_complete_in(struct urb *urb) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 491 | { |
| 492 | struct hackrf_dev *dev = urb->context; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 493 | struct usb_interface *intf = dev->intf; |
| 494 | struct hackrf_buffer *buffer; |
| 495 | unsigned int len; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 496 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 497 | dev_dbg_ratelimited(&intf->dev, "status=%d length=%u/%u\n", urb->status, |
| 498 | urb->actual_length, urb->transfer_buffer_length); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 499 | |
| 500 | switch (urb->status) { |
| 501 | case 0: /* success */ |
| 502 | case -ETIMEDOUT: /* NAK */ |
| 503 | break; |
| 504 | case -ECONNRESET: /* kill */ |
| 505 | case -ENOENT: |
| 506 | case -ESHUTDOWN: |
| 507 | return; |
| 508 | default: /* error */ |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 509 | dev_err_ratelimited(&intf->dev, "URB failed %d\n", urb->status); |
| 510 | goto exit_usb_submit_urb; |
| 511 | } |
| 512 | |
| 513 | /* get buffer to write */ |
| 514 | buffer = hackrf_get_next_buffer(dev, &dev->rx_buffer_list); |
| 515 | if (unlikely(buffer == NULL)) { |
| 516 | dev->vb_full++; |
| 517 | dev_notice_ratelimited(&intf->dev, |
| 518 | "buffer is full - %u packets dropped\n", |
| 519 | dev->vb_full); |
| 520 | goto exit_usb_submit_urb; |
| 521 | } |
| 522 | |
| 523 | len = min_t(unsigned long, vb2_plane_size(&buffer->vb.vb2_buf, 0), |
| 524 | urb->actual_length); |
| 525 | hackrf_copy_stream(dev, vb2_plane_vaddr(&buffer->vb.vb2_buf, 0), |
| 526 | urb->transfer_buffer, len); |
| 527 | vb2_set_plane_payload(&buffer->vb.vb2_buf, 0, len); |
| 528 | buffer->vb.sequence = dev->sequence++; |
Junghak Sung | d6dd645 | 2015-11-03 08:16:37 -0200 | [diff] [blame] | 529 | buffer->vb.vb2_buf.timestamp = ktime_get_ns(); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 530 | vb2_buffer_done(&buffer->vb.vb2_buf, VB2_BUF_STATE_DONE); |
| 531 | exit_usb_submit_urb: |
| 532 | usb_submit_urb(urb, GFP_ATOMIC); |
| 533 | } |
| 534 | |
| 535 | static void hackrf_urb_complete_out(struct urb *urb) |
| 536 | { |
| 537 | struct hackrf_dev *dev = urb->context; |
| 538 | struct usb_interface *intf = dev->intf; |
| 539 | struct hackrf_buffer *buffer; |
| 540 | unsigned int len; |
| 541 | |
| 542 | dev_dbg_ratelimited(&intf->dev, "status=%d length=%u/%u\n", urb->status, |
| 543 | urb->actual_length, urb->transfer_buffer_length); |
| 544 | |
| 545 | switch (urb->status) { |
| 546 | case 0: /* success */ |
| 547 | case -ETIMEDOUT: /* NAK */ |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 548 | break; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 549 | case -ECONNRESET: /* kill */ |
| 550 | case -ENOENT: |
| 551 | case -ESHUTDOWN: |
| 552 | return; |
| 553 | default: /* error */ |
| 554 | dev_err_ratelimited(&intf->dev, "URB failed %d\n", urb->status); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 555 | } |
| 556 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 557 | /* get buffer to read */ |
| 558 | buffer = hackrf_get_next_buffer(dev, &dev->tx_buffer_list); |
| 559 | if (unlikely(buffer == NULL)) { |
| 560 | dev->vb_empty++; |
| 561 | dev_notice_ratelimited(&intf->dev, |
| 562 | "buffer is empty - %u packets dropped\n", |
| 563 | dev->vb_empty); |
| 564 | urb->actual_length = 0; |
| 565 | goto exit_usb_submit_urb; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 566 | } |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 567 | |
| 568 | len = min_t(unsigned long, urb->transfer_buffer_length, |
| 569 | vb2_get_plane_payload(&buffer->vb.vb2_buf, 0)); |
| 570 | hackrf_copy_stream(dev, urb->transfer_buffer, |
| 571 | vb2_plane_vaddr(&buffer->vb.vb2_buf, 0), len); |
| 572 | urb->actual_length = len; |
| 573 | buffer->vb.sequence = dev->sequence++; |
Junghak Sung | d6dd645 | 2015-11-03 08:16:37 -0200 | [diff] [blame] | 574 | buffer->vb.vb2_buf.timestamp = ktime_get_ns(); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 575 | vb2_buffer_done(&buffer->vb.vb2_buf, VB2_BUF_STATE_DONE); |
| 576 | exit_usb_submit_urb: |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 577 | usb_submit_urb(urb, GFP_ATOMIC); |
| 578 | } |
| 579 | |
| 580 | static int hackrf_kill_urbs(struct hackrf_dev *dev) |
| 581 | { |
| 582 | int i; |
| 583 | |
| 584 | for (i = dev->urbs_submitted - 1; i >= 0; i--) { |
| 585 | dev_dbg(dev->dev, "kill urb=%d\n", i); |
| 586 | /* stop the URB */ |
| 587 | usb_kill_urb(dev->urb_list[i]); |
| 588 | } |
| 589 | dev->urbs_submitted = 0; |
| 590 | |
| 591 | return 0; |
| 592 | } |
| 593 | |
| 594 | static int hackrf_submit_urbs(struct hackrf_dev *dev) |
| 595 | { |
| 596 | int i, ret; |
| 597 | |
| 598 | for (i = 0; i < dev->urbs_initialized; i++) { |
| 599 | dev_dbg(dev->dev, "submit urb=%d\n", i); |
| 600 | ret = usb_submit_urb(dev->urb_list[i], GFP_ATOMIC); |
| 601 | if (ret) { |
| 602 | dev_err(dev->dev, "Could not submit URB no. %d - get them all back\n", |
| 603 | i); |
| 604 | hackrf_kill_urbs(dev); |
| 605 | return ret; |
| 606 | } |
| 607 | dev->urbs_submitted++; |
| 608 | } |
| 609 | |
| 610 | return 0; |
| 611 | } |
| 612 | |
| 613 | static int hackrf_free_stream_bufs(struct hackrf_dev *dev) |
| 614 | { |
| 615 | if (dev->flags & USB_STATE_URB_BUF) { |
| 616 | while (dev->buf_num) { |
| 617 | dev->buf_num--; |
| 618 | dev_dbg(dev->dev, "free buf=%d\n", dev->buf_num); |
| 619 | usb_free_coherent(dev->udev, dev->buf_size, |
| 620 | dev->buf_list[dev->buf_num], |
| 621 | dev->dma_addr[dev->buf_num]); |
| 622 | } |
| 623 | } |
| 624 | dev->flags &= ~USB_STATE_URB_BUF; |
| 625 | |
| 626 | return 0; |
| 627 | } |
| 628 | |
| 629 | static int hackrf_alloc_stream_bufs(struct hackrf_dev *dev) |
| 630 | { |
| 631 | dev->buf_num = 0; |
| 632 | dev->buf_size = BULK_BUFFER_SIZE; |
| 633 | |
| 634 | dev_dbg(dev->dev, "all in all I will use %u bytes for streaming\n", |
| 635 | MAX_BULK_BUFS * BULK_BUFFER_SIZE); |
| 636 | |
| 637 | for (dev->buf_num = 0; dev->buf_num < MAX_BULK_BUFS; dev->buf_num++) { |
| 638 | dev->buf_list[dev->buf_num] = usb_alloc_coherent(dev->udev, |
| 639 | BULK_BUFFER_SIZE, GFP_ATOMIC, |
| 640 | &dev->dma_addr[dev->buf_num]); |
| 641 | if (!dev->buf_list[dev->buf_num]) { |
| 642 | dev_dbg(dev->dev, "alloc buf=%d failed\n", |
| 643 | dev->buf_num); |
| 644 | hackrf_free_stream_bufs(dev); |
| 645 | return -ENOMEM; |
| 646 | } |
| 647 | |
| 648 | dev_dbg(dev->dev, "alloc buf=%d %p (dma %llu)\n", dev->buf_num, |
| 649 | dev->buf_list[dev->buf_num], |
| 650 | (long long)dev->dma_addr[dev->buf_num]); |
| 651 | dev->flags |= USB_STATE_URB_BUF; |
| 652 | } |
| 653 | |
| 654 | return 0; |
| 655 | } |
| 656 | |
| 657 | static int hackrf_free_urbs(struct hackrf_dev *dev) |
| 658 | { |
| 659 | int i; |
| 660 | |
| 661 | hackrf_kill_urbs(dev); |
| 662 | |
| 663 | for (i = dev->urbs_initialized - 1; i >= 0; i--) { |
| 664 | if (dev->urb_list[i]) { |
| 665 | dev_dbg(dev->dev, "free urb=%d\n", i); |
| 666 | /* free the URBs */ |
| 667 | usb_free_urb(dev->urb_list[i]); |
| 668 | } |
| 669 | } |
| 670 | dev->urbs_initialized = 0; |
| 671 | |
| 672 | return 0; |
| 673 | } |
| 674 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 675 | static int hackrf_alloc_urbs(struct hackrf_dev *dev, bool rcv) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 676 | { |
| 677 | int i, j; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 678 | unsigned int pipe; |
| 679 | usb_complete_t complete; |
| 680 | |
| 681 | if (rcv) { |
| 682 | pipe = usb_rcvbulkpipe(dev->udev, 0x81); |
| 683 | complete = &hackrf_urb_complete_in; |
| 684 | } else { |
| 685 | pipe = usb_sndbulkpipe(dev->udev, 0x02); |
| 686 | complete = &hackrf_urb_complete_out; |
| 687 | } |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 688 | |
| 689 | /* allocate the URBs */ |
| 690 | for (i = 0; i < MAX_BULK_BUFS; i++) { |
| 691 | dev_dbg(dev->dev, "alloc urb=%d\n", i); |
| 692 | dev->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC); |
| 693 | if (!dev->urb_list[i]) { |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 694 | for (j = 0; j < i; j++) |
| 695 | usb_free_urb(dev->urb_list[j]); |
| 696 | return -ENOMEM; |
| 697 | } |
| 698 | usb_fill_bulk_urb(dev->urb_list[i], |
| 699 | dev->udev, |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 700 | pipe, |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 701 | dev->buf_list[i], |
| 702 | BULK_BUFFER_SIZE, |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 703 | complete, dev); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 704 | |
| 705 | dev->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; |
| 706 | dev->urb_list[i]->transfer_dma = dev->dma_addr[i]; |
| 707 | dev->urbs_initialized++; |
| 708 | } |
| 709 | |
| 710 | return 0; |
| 711 | } |
| 712 | |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 713 | /* The user yanked out the cable... */ |
| 714 | static void hackrf_disconnect(struct usb_interface *intf) |
| 715 | { |
| 716 | struct v4l2_device *v = usb_get_intfdata(intf); |
| 717 | struct hackrf_dev *dev = container_of(v, struct hackrf_dev, v4l2_dev); |
| 718 | |
| 719 | dev_dbg(dev->dev, "\n"); |
| 720 | |
| 721 | mutex_lock(&dev->vb_queue_lock); |
| 722 | mutex_lock(&dev->v4l2_lock); |
| 723 | /* No need to keep the urbs around after disconnection */ |
| 724 | dev->udev = NULL; |
| 725 | v4l2_device_disconnect(&dev->v4l2_dev); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 726 | video_unregister_device(&dev->tx_vdev); |
| 727 | video_unregister_device(&dev->rx_vdev); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 728 | mutex_unlock(&dev->v4l2_lock); |
| 729 | mutex_unlock(&dev->vb_queue_lock); |
| 730 | |
| 731 | v4l2_device_put(&dev->v4l2_dev); |
| 732 | } |
| 733 | |
| 734 | /* Videobuf2 operations */ |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 735 | static void hackrf_return_all_buffers(struct vb2_queue *vq, |
| 736 | enum vb2_buffer_state state) |
| 737 | { |
| 738 | struct hackrf_dev *dev = vb2_get_drv_priv(vq); |
| 739 | struct usb_interface *intf = dev->intf; |
| 740 | struct hackrf_buffer *buffer, *node; |
| 741 | struct list_head *buffer_list; |
| 742 | unsigned long flags; |
| 743 | |
| 744 | dev_dbg(&intf->dev, "\n"); |
| 745 | |
| 746 | if (vq->type == V4L2_BUF_TYPE_SDR_CAPTURE) |
| 747 | buffer_list = &dev->rx_buffer_list; |
| 748 | else |
| 749 | buffer_list = &dev->tx_buffer_list; |
| 750 | |
| 751 | spin_lock_irqsave(&dev->buffer_list_lock, flags); |
| 752 | list_for_each_entry_safe(buffer, node, buffer_list, list) { |
| 753 | dev_dbg(&intf->dev, "list_for_each_entry_safe\n"); |
| 754 | vb2_buffer_done(&buffer->vb.vb2_buf, state); |
| 755 | list_del(&buffer->list); |
| 756 | } |
| 757 | spin_unlock_irqrestore(&dev->buffer_list_lock, flags); |
| 758 | } |
| 759 | |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 760 | static int hackrf_queue_setup(struct vb2_queue *vq, |
Hans Verkuil | df9ecb0 | 2015-10-28 00:50:37 -0200 | [diff] [blame] | 761 | unsigned int *nbuffers, |
Hans Verkuil | 36c0f8b | 2016-04-15 09:15:05 -0300 | [diff] [blame] | 762 | unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 763 | { |
| 764 | struct hackrf_dev *dev = vb2_get_drv_priv(vq); |
| 765 | |
| 766 | dev_dbg(dev->dev, "nbuffers=%d\n", *nbuffers); |
| 767 | |
| 768 | /* Need at least 8 buffers */ |
| 769 | if (vq->num_buffers + *nbuffers < 8) |
| 770 | *nbuffers = 8 - vq->num_buffers; |
| 771 | *nplanes = 1; |
| 772 | sizes[0] = PAGE_ALIGN(dev->buffersize); |
| 773 | |
| 774 | dev_dbg(dev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]); |
| 775 | return 0; |
| 776 | } |
| 777 | |
| 778 | static void hackrf_buf_queue(struct vb2_buffer *vb) |
| 779 | { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 780 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 781 | struct vb2_queue *vq = vb->vb2_queue; |
| 782 | struct hackrf_dev *dev = vb2_get_drv_priv(vq); |
| 783 | struct hackrf_buffer *buffer = container_of(vbuf, struct hackrf_buffer, vb); |
| 784 | struct list_head *buffer_list; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 785 | unsigned long flags; |
| 786 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 787 | dev_dbg_ratelimited(&dev->intf->dev, "\n"); |
| 788 | |
| 789 | if (vq->type == V4L2_BUF_TYPE_SDR_CAPTURE) |
| 790 | buffer_list = &dev->rx_buffer_list; |
| 791 | else |
| 792 | buffer_list = &dev->tx_buffer_list; |
| 793 | |
| 794 | spin_lock_irqsave(&dev->buffer_list_lock, flags); |
| 795 | list_add_tail(&buffer->list, buffer_list); |
| 796 | spin_unlock_irqrestore(&dev->buffer_list_lock, flags); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 797 | } |
| 798 | |
| 799 | static int hackrf_start_streaming(struct vb2_queue *vq, unsigned int count) |
| 800 | { |
| 801 | struct hackrf_dev *dev = vb2_get_drv_priv(vq); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 802 | struct usb_interface *intf = dev->intf; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 803 | int ret; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 804 | unsigned int mode; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 805 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 806 | dev_dbg(&intf->dev, "count=%i\n", count); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 807 | |
| 808 | mutex_lock(&dev->v4l2_lock); |
| 809 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 810 | /* Allow only RX or TX, not both same time */ |
| 811 | if (vq->type == V4L2_BUF_TYPE_SDR_CAPTURE) { |
| 812 | if (test_bit(TX_ON, &dev->flags)) { |
| 813 | ret = -EBUSY; |
| 814 | goto err_hackrf_return_all_buffers; |
| 815 | } |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 816 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 817 | mode = 1; |
| 818 | set_bit(RX_ON, &dev->flags); |
| 819 | } else { |
| 820 | if (test_bit(RX_ON, &dev->flags)) { |
| 821 | ret = -EBUSY; |
| 822 | goto err_hackrf_return_all_buffers; |
| 823 | } |
| 824 | |
| 825 | mode = 2; |
| 826 | set_bit(TX_ON, &dev->flags); |
| 827 | } |
| 828 | |
| 829 | dev->sequence = 0; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 830 | |
| 831 | ret = hackrf_alloc_stream_bufs(dev); |
| 832 | if (ret) |
| 833 | goto err; |
| 834 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 835 | ret = hackrf_alloc_urbs(dev, (mode == 1)); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 836 | if (ret) |
| 837 | goto err; |
| 838 | |
| 839 | ret = hackrf_submit_urbs(dev); |
| 840 | if (ret) |
| 841 | goto err; |
| 842 | |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 843 | ret = hackrf_set_params(dev); |
| 844 | if (ret) |
| 845 | goto err; |
| 846 | |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 847 | /* start hardware streaming */ |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 848 | ret = hackrf_ctrl_msg(dev, CMD_SET_TRANSCEIVER_MODE, mode, 0, NULL, 0); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 849 | if (ret) |
| 850 | goto err; |
| 851 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 852 | mutex_unlock(&dev->v4l2_lock); |
| 853 | |
| 854 | return 0; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 855 | err: |
| 856 | hackrf_kill_urbs(dev); |
| 857 | hackrf_free_urbs(dev); |
| 858 | hackrf_free_stream_bufs(dev); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 859 | clear_bit(RX_ON, &dev->flags); |
| 860 | clear_bit(TX_ON, &dev->flags); |
| 861 | err_hackrf_return_all_buffers: |
| 862 | hackrf_return_all_buffers(vq, VB2_BUF_STATE_QUEUED); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 863 | mutex_unlock(&dev->v4l2_lock); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 864 | dev_dbg(&intf->dev, "failed=%d\n", ret); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 865 | return ret; |
| 866 | } |
| 867 | |
| 868 | static void hackrf_stop_streaming(struct vb2_queue *vq) |
| 869 | { |
| 870 | struct hackrf_dev *dev = vb2_get_drv_priv(vq); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 871 | struct usb_interface *intf = dev->intf; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 872 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 873 | dev_dbg(&intf->dev, "\n"); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 874 | |
| 875 | mutex_lock(&dev->v4l2_lock); |
| 876 | |
| 877 | /* stop hardware streaming */ |
| 878 | hackrf_ctrl_msg(dev, CMD_SET_TRANSCEIVER_MODE, 0, 0, NULL, 0); |
| 879 | |
| 880 | hackrf_kill_urbs(dev); |
| 881 | hackrf_free_urbs(dev); |
| 882 | hackrf_free_stream_bufs(dev); |
| 883 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 884 | hackrf_return_all_buffers(vq, VB2_BUF_STATE_ERROR); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 885 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 886 | if (vq->type == V4L2_BUF_TYPE_SDR_CAPTURE) |
| 887 | clear_bit(RX_ON, &dev->flags); |
| 888 | else |
| 889 | clear_bit(TX_ON, &dev->flags); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 890 | |
| 891 | mutex_unlock(&dev->v4l2_lock); |
| 892 | } |
| 893 | |
| 894 | static struct vb2_ops hackrf_vb2_ops = { |
| 895 | .queue_setup = hackrf_queue_setup, |
| 896 | .buf_queue = hackrf_buf_queue, |
| 897 | .start_streaming = hackrf_start_streaming, |
| 898 | .stop_streaming = hackrf_stop_streaming, |
| 899 | .wait_prepare = vb2_ops_wait_prepare, |
| 900 | .wait_finish = vb2_ops_wait_finish, |
| 901 | }; |
| 902 | |
| 903 | static int hackrf_querycap(struct file *file, void *fh, |
| 904 | struct v4l2_capability *cap) |
| 905 | { |
| 906 | struct hackrf_dev *dev = video_drvdata(file); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 907 | struct usb_interface *intf = dev->intf; |
| 908 | struct video_device *vdev = video_devdata(file); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 909 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 910 | dev_dbg(&intf->dev, "\n"); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 911 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 912 | if (vdev->vfl_dir == VFL_DIR_RX) |
| 913 | cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_TUNER | |
| 914 | V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; |
| 915 | |
| 916 | else |
| 917 | cap->device_caps = V4L2_CAP_SDR_OUTPUT | V4L2_CAP_MODULATOR | |
| 918 | V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; |
| 919 | |
| 920 | cap->capabilities = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_TUNER | |
| 921 | V4L2_CAP_SDR_OUTPUT | V4L2_CAP_MODULATOR | |
| 922 | V4L2_CAP_STREAMING | V4L2_CAP_READWRITE | |
| 923 | V4L2_CAP_DEVICE_CAPS; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 924 | strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 925 | strlcpy(cap->card, dev->rx_vdev.name, sizeof(cap->card)); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 926 | usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 927 | |
| 928 | return 0; |
| 929 | } |
| 930 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 931 | static int hackrf_s_fmt_sdr(struct file *file, void *priv, |
| 932 | struct v4l2_format *f) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 933 | { |
| 934 | struct hackrf_dev *dev = video_drvdata(file); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 935 | struct video_device *vdev = video_devdata(file); |
| 936 | struct vb2_queue *q; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 937 | int i; |
| 938 | |
| 939 | dev_dbg(dev->dev, "pixelformat fourcc %4.4s\n", |
| 940 | (char *)&f->fmt.sdr.pixelformat); |
| 941 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 942 | if (vdev->vfl_dir == VFL_DIR_RX) |
| 943 | q = &dev->rx_vb2_queue; |
| 944 | else |
| 945 | q = &dev->tx_vb2_queue; |
| 946 | |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 947 | if (vb2_is_busy(q)) |
| 948 | return -EBUSY; |
| 949 | |
| 950 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
| 951 | for (i = 0; i < NUM_FORMATS; i++) { |
| 952 | if (f->fmt.sdr.pixelformat == formats[i].pixelformat) { |
| 953 | dev->pixelformat = formats[i].pixelformat; |
| 954 | dev->buffersize = formats[i].buffersize; |
| 955 | f->fmt.sdr.buffersize = formats[i].buffersize; |
| 956 | return 0; |
| 957 | } |
| 958 | } |
| 959 | |
| 960 | dev->pixelformat = formats[0].pixelformat; |
| 961 | dev->buffersize = formats[0].buffersize; |
| 962 | f->fmt.sdr.pixelformat = formats[0].pixelformat; |
| 963 | f->fmt.sdr.buffersize = formats[0].buffersize; |
| 964 | |
| 965 | return 0; |
| 966 | } |
| 967 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 968 | static int hackrf_g_fmt_sdr(struct file *file, void *priv, |
| 969 | struct v4l2_format *f) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 970 | { |
| 971 | struct hackrf_dev *dev = video_drvdata(file); |
| 972 | |
| 973 | dev_dbg(dev->dev, "pixelformat fourcc %4.4s\n", |
| 974 | (char *)&dev->pixelformat); |
| 975 | |
| 976 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
| 977 | f->fmt.sdr.pixelformat = dev->pixelformat; |
| 978 | f->fmt.sdr.buffersize = dev->buffersize; |
| 979 | |
| 980 | return 0; |
| 981 | } |
| 982 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 983 | static int hackrf_try_fmt_sdr(struct file *file, void *priv, |
| 984 | struct v4l2_format *f) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 985 | { |
| 986 | struct hackrf_dev *dev = video_drvdata(file); |
| 987 | int i; |
| 988 | |
| 989 | dev_dbg(dev->dev, "pixelformat fourcc %4.4s\n", |
| 990 | (char *)&f->fmt.sdr.pixelformat); |
| 991 | |
| 992 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
| 993 | for (i = 0; i < NUM_FORMATS; i++) { |
| 994 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
| 995 | f->fmt.sdr.buffersize = formats[i].buffersize; |
| 996 | return 0; |
| 997 | } |
| 998 | } |
| 999 | |
| 1000 | f->fmt.sdr.pixelformat = formats[0].pixelformat; |
| 1001 | f->fmt.sdr.buffersize = formats[0].buffersize; |
| 1002 | |
| 1003 | return 0; |
| 1004 | } |
| 1005 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1006 | static int hackrf_enum_fmt_sdr(struct file *file, void *priv, |
| 1007 | struct v4l2_fmtdesc *f) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1008 | { |
| 1009 | struct hackrf_dev *dev = video_drvdata(file); |
| 1010 | |
| 1011 | dev_dbg(dev->dev, "index=%d\n", f->index); |
| 1012 | |
| 1013 | if (f->index >= NUM_FORMATS) |
| 1014 | return -EINVAL; |
| 1015 | |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1016 | f->pixelformat = formats[f->index].pixelformat; |
| 1017 | |
| 1018 | return 0; |
| 1019 | } |
| 1020 | |
| 1021 | static int hackrf_s_tuner(struct file *file, void *priv, |
| 1022 | const struct v4l2_tuner *v) |
| 1023 | { |
| 1024 | struct hackrf_dev *dev = video_drvdata(file); |
| 1025 | int ret; |
| 1026 | |
| 1027 | dev_dbg(dev->dev, "index=%d\n", v->index); |
| 1028 | |
| 1029 | if (v->index == 0) |
| 1030 | ret = 0; |
| 1031 | else if (v->index == 1) |
| 1032 | ret = 0; |
| 1033 | else |
| 1034 | ret = -EINVAL; |
| 1035 | |
| 1036 | return ret; |
| 1037 | } |
| 1038 | |
| 1039 | static int hackrf_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) |
| 1040 | { |
| 1041 | struct hackrf_dev *dev = video_drvdata(file); |
| 1042 | int ret; |
| 1043 | |
| 1044 | dev_dbg(dev->dev, "index=%d\n", v->index); |
| 1045 | |
| 1046 | if (v->index == 0) { |
| 1047 | strlcpy(v->name, "HackRF ADC", sizeof(v->name)); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1048 | v->type = V4L2_TUNER_SDR; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1049 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1050 | v->rangelow = bands_adc_dac[0].rangelow; |
| 1051 | v->rangehigh = bands_adc_dac[0].rangehigh; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1052 | ret = 0; |
| 1053 | } else if (v->index == 1) { |
| 1054 | strlcpy(v->name, "HackRF RF", sizeof(v->name)); |
| 1055 | v->type = V4L2_TUNER_RF; |
| 1056 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1057 | v->rangelow = bands_rx_tx[0].rangelow; |
| 1058 | v->rangehigh = bands_rx_tx[0].rangehigh; |
| 1059 | ret = 0; |
| 1060 | } else { |
| 1061 | ret = -EINVAL; |
| 1062 | } |
| 1063 | |
| 1064 | return ret; |
| 1065 | } |
| 1066 | |
| 1067 | static int hackrf_s_modulator(struct file *file, void *fh, |
| 1068 | const struct v4l2_modulator *a) |
| 1069 | { |
| 1070 | struct hackrf_dev *dev = video_drvdata(file); |
| 1071 | |
| 1072 | dev_dbg(dev->dev, "index=%d\n", a->index); |
| 1073 | |
| 1074 | return a->index > 1 ? -EINVAL : 0; |
| 1075 | } |
| 1076 | |
| 1077 | static int hackrf_g_modulator(struct file *file, void *fh, |
| 1078 | struct v4l2_modulator *a) |
| 1079 | { |
| 1080 | struct hackrf_dev *dev = video_drvdata(file); |
| 1081 | int ret; |
| 1082 | |
| 1083 | dev_dbg(dev->dev, "index=%d\n", a->index); |
| 1084 | |
| 1085 | if (a->index == 0) { |
| 1086 | strlcpy(a->name, "HackRF DAC", sizeof(a->name)); |
| 1087 | a->type = V4L2_TUNER_SDR; |
| 1088 | a->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; |
| 1089 | a->rangelow = bands_adc_dac[0].rangelow; |
| 1090 | a->rangehigh = bands_adc_dac[0].rangehigh; |
| 1091 | ret = 0; |
| 1092 | } else if (a->index == 1) { |
| 1093 | strlcpy(a->name, "HackRF RF", sizeof(a->name)); |
| 1094 | a->type = V4L2_TUNER_RF; |
| 1095 | a->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; |
| 1096 | a->rangelow = bands_rx_tx[0].rangelow; |
| 1097 | a->rangehigh = bands_rx_tx[0].rangehigh; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1098 | ret = 0; |
| 1099 | } else { |
| 1100 | ret = -EINVAL; |
| 1101 | } |
| 1102 | |
| 1103 | return ret; |
| 1104 | } |
| 1105 | |
| 1106 | static int hackrf_s_frequency(struct file *file, void *priv, |
| 1107 | const struct v4l2_frequency *f) |
| 1108 | { |
| 1109 | struct hackrf_dev *dev = video_drvdata(file); |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1110 | struct usb_interface *intf = dev->intf; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1111 | struct video_device *vdev = video_devdata(file); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1112 | int ret; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1113 | unsigned int uitmp; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1114 | |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1115 | dev_dbg(&intf->dev, "tuner=%d type=%d frequency=%u\n", |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1116 | f->tuner, f->type, f->frequency); |
| 1117 | |
| 1118 | if (f->tuner == 0) { |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1119 | uitmp = clamp(f->frequency, bands_adc_dac[0].rangelow, |
| 1120 | bands_adc_dac[0].rangehigh); |
| 1121 | if (vdev->vfl_dir == VFL_DIR_RX) { |
| 1122 | dev->f_adc = uitmp; |
| 1123 | set_bit(RX_ADC_FREQUENCY, &dev->flags); |
| 1124 | } else { |
| 1125 | dev->f_dac = uitmp; |
| 1126 | set_bit(TX_DAC_FREQUENCY, &dev->flags); |
| 1127 | } |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1128 | } else if (f->tuner == 1) { |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1129 | uitmp = clamp(f->frequency, bands_rx_tx[0].rangelow, |
| 1130 | bands_rx_tx[0].rangehigh); |
| 1131 | if (vdev->vfl_dir == VFL_DIR_RX) { |
| 1132 | dev->f_rx = uitmp; |
| 1133 | set_bit(RX_RF_FREQUENCY, &dev->flags); |
| 1134 | } else { |
| 1135 | dev->f_tx = uitmp; |
| 1136 | set_bit(TX_RF_FREQUENCY, &dev->flags); |
| 1137 | } |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1138 | } else { |
| 1139 | ret = -EINVAL; |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1140 | goto err; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1141 | } |
| 1142 | |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1143 | ret = hackrf_set_params(dev); |
| 1144 | if (ret) |
| 1145 | goto err; |
| 1146 | |
| 1147 | return 0; |
| 1148 | err: |
| 1149 | dev_dbg(&intf->dev, "failed=%d\n", ret); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1150 | return ret; |
| 1151 | } |
| 1152 | |
| 1153 | static int hackrf_g_frequency(struct file *file, void *priv, |
| 1154 | struct v4l2_frequency *f) |
| 1155 | { |
| 1156 | struct hackrf_dev *dev = video_drvdata(file); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1157 | struct usb_interface *intf = dev->intf; |
| 1158 | struct video_device *vdev = video_devdata(file); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1159 | int ret; |
| 1160 | |
| 1161 | dev_dbg(dev->dev, "tuner=%d type=%d\n", f->tuner, f->type); |
| 1162 | |
| 1163 | if (f->tuner == 0) { |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1164 | f->type = V4L2_TUNER_SDR; |
| 1165 | if (vdev->vfl_dir == VFL_DIR_RX) |
| 1166 | f->frequency = dev->f_adc; |
| 1167 | else |
| 1168 | f->frequency = dev->f_dac; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1169 | } else if (f->tuner == 1) { |
| 1170 | f->type = V4L2_TUNER_RF; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1171 | if (vdev->vfl_dir == VFL_DIR_RX) |
| 1172 | f->frequency = dev->f_rx; |
| 1173 | else |
| 1174 | f->frequency = dev->f_tx; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1175 | } else { |
| 1176 | ret = -EINVAL; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1177 | goto err; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1178 | } |
| 1179 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1180 | return 0; |
| 1181 | err: |
| 1182 | dev_dbg(&intf->dev, "failed=%d\n", ret); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1183 | return ret; |
| 1184 | } |
| 1185 | |
| 1186 | static int hackrf_enum_freq_bands(struct file *file, void *priv, |
| 1187 | struct v4l2_frequency_band *band) |
| 1188 | { |
| 1189 | struct hackrf_dev *dev = video_drvdata(file); |
| 1190 | int ret; |
| 1191 | |
| 1192 | dev_dbg(dev->dev, "tuner=%d type=%d index=%d\n", |
| 1193 | band->tuner, band->type, band->index); |
| 1194 | |
| 1195 | if (band->tuner == 0) { |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1196 | if (band->index >= ARRAY_SIZE(bands_adc_dac)) { |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1197 | ret = -EINVAL; |
| 1198 | } else { |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1199 | *band = bands_adc_dac[band->index]; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1200 | ret = 0; |
| 1201 | } |
| 1202 | } else if (band->tuner == 1) { |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1203 | if (band->index >= ARRAY_SIZE(bands_rx_tx)) { |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1204 | ret = -EINVAL; |
| 1205 | } else { |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1206 | *band = bands_rx_tx[band->index]; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1207 | ret = 0; |
| 1208 | } |
| 1209 | } else { |
| 1210 | ret = -EINVAL; |
| 1211 | } |
| 1212 | |
| 1213 | return ret; |
| 1214 | } |
| 1215 | |
| 1216 | static const struct v4l2_ioctl_ops hackrf_ioctl_ops = { |
| 1217 | .vidioc_querycap = hackrf_querycap, |
| 1218 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1219 | .vidioc_s_fmt_sdr_cap = hackrf_s_fmt_sdr, |
| 1220 | .vidioc_g_fmt_sdr_cap = hackrf_g_fmt_sdr, |
| 1221 | .vidioc_enum_fmt_sdr_cap = hackrf_enum_fmt_sdr, |
| 1222 | .vidioc_try_fmt_sdr_cap = hackrf_try_fmt_sdr, |
| 1223 | |
| 1224 | .vidioc_s_fmt_sdr_out = hackrf_s_fmt_sdr, |
| 1225 | .vidioc_g_fmt_sdr_out = hackrf_g_fmt_sdr, |
| 1226 | .vidioc_enum_fmt_sdr_out = hackrf_enum_fmt_sdr, |
| 1227 | .vidioc_try_fmt_sdr_out = hackrf_try_fmt_sdr, |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1228 | |
| 1229 | .vidioc_reqbufs = vb2_ioctl_reqbufs, |
| 1230 | .vidioc_create_bufs = vb2_ioctl_create_bufs, |
| 1231 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, |
| 1232 | .vidioc_querybuf = vb2_ioctl_querybuf, |
| 1233 | .vidioc_qbuf = vb2_ioctl_qbuf, |
| 1234 | .vidioc_dqbuf = vb2_ioctl_dqbuf, |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1235 | .vidioc_expbuf = vb2_ioctl_expbuf, |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1236 | |
| 1237 | .vidioc_streamon = vb2_ioctl_streamon, |
| 1238 | .vidioc_streamoff = vb2_ioctl_streamoff, |
| 1239 | |
| 1240 | .vidioc_s_tuner = hackrf_s_tuner, |
| 1241 | .vidioc_g_tuner = hackrf_g_tuner, |
| 1242 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1243 | .vidioc_s_modulator = hackrf_s_modulator, |
| 1244 | .vidioc_g_modulator = hackrf_g_modulator, |
| 1245 | |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1246 | .vidioc_s_frequency = hackrf_s_frequency, |
| 1247 | .vidioc_g_frequency = hackrf_g_frequency, |
| 1248 | .vidioc_enum_freq_bands = hackrf_enum_freq_bands, |
| 1249 | |
| 1250 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
| 1251 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
| 1252 | .vidioc_log_status = v4l2_ctrl_log_status, |
| 1253 | }; |
| 1254 | |
| 1255 | static const struct v4l2_file_operations hackrf_fops = { |
| 1256 | .owner = THIS_MODULE, |
| 1257 | .open = v4l2_fh_open, |
| 1258 | .release = vb2_fop_release, |
| 1259 | .read = vb2_fop_read, |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1260 | .write = vb2_fop_write, |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1261 | .poll = vb2_fop_poll, |
| 1262 | .mmap = vb2_fop_mmap, |
| 1263 | .unlocked_ioctl = video_ioctl2, |
| 1264 | }; |
| 1265 | |
| 1266 | static struct video_device hackrf_template = { |
| 1267 | .name = "HackRF One", |
| 1268 | .release = video_device_release_empty, |
| 1269 | .fops = &hackrf_fops, |
| 1270 | .ioctl_ops = &hackrf_ioctl_ops, |
| 1271 | }; |
| 1272 | |
| 1273 | static void hackrf_video_release(struct v4l2_device *v) |
| 1274 | { |
| 1275 | struct hackrf_dev *dev = container_of(v, struct hackrf_dev, v4l2_dev); |
| 1276 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1277 | dev_dbg(dev->dev, "\n"); |
| 1278 | |
| 1279 | v4l2_ctrl_handler_free(&dev->rx_ctrl_handler); |
| 1280 | v4l2_ctrl_handler_free(&dev->tx_ctrl_handler); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1281 | v4l2_device_unregister(&dev->v4l2_dev); |
| 1282 | kfree(dev); |
| 1283 | } |
| 1284 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1285 | static int hackrf_s_ctrl_rx(struct v4l2_ctrl *ctrl) |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1286 | { |
| 1287 | struct hackrf_dev *dev = container_of(ctrl->handler, |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1288 | struct hackrf_dev, rx_ctrl_handler); |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1289 | struct usb_interface *intf = dev->intf; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1290 | int ret; |
| 1291 | |
| 1292 | switch (ctrl->id) { |
| 1293 | case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: |
| 1294 | case V4L2_CID_RF_TUNER_BANDWIDTH: |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1295 | set_bit(RX_BANDWIDTH, &dev->flags); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1296 | break; |
Antti Palosaari | b3ae296 | 2015-10-10 13:51:04 -0300 | [diff] [blame] | 1297 | case V4L2_CID_RF_TUNER_RF_GAIN: |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1298 | set_bit(RX_RF_GAIN, &dev->flags); |
Antti Palosaari | b3ae296 | 2015-10-10 13:51:04 -0300 | [diff] [blame] | 1299 | break; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1300 | case V4L2_CID_RF_TUNER_LNA_GAIN: |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1301 | set_bit(RX_LNA_GAIN, &dev->flags); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1302 | break; |
| 1303 | case V4L2_CID_RF_TUNER_IF_GAIN: |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1304 | set_bit(RX_IF_GAIN, &dev->flags); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1305 | break; |
| 1306 | default: |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1307 | dev_dbg(&intf->dev, "unknown ctrl: id=%d name=%s\n", |
| 1308 | ctrl->id, ctrl->name); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1309 | ret = -EINVAL; |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1310 | goto err; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1311 | } |
| 1312 | |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1313 | ret = hackrf_set_params(dev); |
| 1314 | if (ret) |
| 1315 | goto err; |
| 1316 | |
| 1317 | return 0; |
| 1318 | err: |
| 1319 | dev_dbg(&intf->dev, "failed=%d\n", ret); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1320 | return ret; |
| 1321 | } |
| 1322 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1323 | static int hackrf_s_ctrl_tx(struct v4l2_ctrl *ctrl) |
| 1324 | { |
| 1325 | struct hackrf_dev *dev = container_of(ctrl->handler, |
| 1326 | struct hackrf_dev, tx_ctrl_handler); |
| 1327 | struct usb_interface *intf = dev->intf; |
| 1328 | int ret; |
| 1329 | |
| 1330 | switch (ctrl->id) { |
| 1331 | case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: |
| 1332 | case V4L2_CID_RF_TUNER_BANDWIDTH: |
| 1333 | set_bit(TX_BANDWIDTH, &dev->flags); |
| 1334 | break; |
| 1335 | case V4L2_CID_RF_TUNER_LNA_GAIN: |
| 1336 | set_bit(TX_LNA_GAIN, &dev->flags); |
| 1337 | break; |
| 1338 | case V4L2_CID_RF_TUNER_RF_GAIN: |
| 1339 | set_bit(TX_RF_GAIN, &dev->flags); |
| 1340 | break; |
| 1341 | default: |
| 1342 | dev_dbg(&intf->dev, "unknown ctrl: id=%d name=%s\n", |
| 1343 | ctrl->id, ctrl->name); |
| 1344 | ret = -EINVAL; |
| 1345 | goto err; |
| 1346 | } |
| 1347 | |
| 1348 | ret = hackrf_set_params(dev); |
| 1349 | if (ret) |
| 1350 | goto err; |
| 1351 | |
| 1352 | return 0; |
| 1353 | err: |
| 1354 | dev_dbg(&intf->dev, "failed=%d\n", ret); |
| 1355 | return ret; |
| 1356 | } |
| 1357 | |
| 1358 | static const struct v4l2_ctrl_ops hackrf_ctrl_ops_rx = { |
| 1359 | .s_ctrl = hackrf_s_ctrl_rx, |
| 1360 | }; |
| 1361 | |
| 1362 | static const struct v4l2_ctrl_ops hackrf_ctrl_ops_tx = { |
| 1363 | .s_ctrl = hackrf_s_ctrl_tx, |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1364 | }; |
| 1365 | |
| 1366 | static int hackrf_probe(struct usb_interface *intf, |
| 1367 | const struct usb_device_id *id) |
| 1368 | { |
| 1369 | struct hackrf_dev *dev; |
| 1370 | int ret; |
| 1371 | u8 u8tmp, buf[BUF_SIZE]; |
| 1372 | |
| 1373 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1374 | if (!dev) { |
| 1375 | ret = -ENOMEM; |
| 1376 | goto err; |
| 1377 | } |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1378 | |
| 1379 | mutex_init(&dev->v4l2_lock); |
| 1380 | mutex_init(&dev->vb_queue_lock); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1381 | spin_lock_init(&dev->buffer_list_lock); |
| 1382 | INIT_LIST_HEAD(&dev->rx_buffer_list); |
| 1383 | INIT_LIST_HEAD(&dev->tx_buffer_list); |
Antti Palosaari | eec20f0 | 2015-10-10 13:51:05 -0300 | [diff] [blame] | 1384 | dev->intf = intf; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1385 | dev->dev = &intf->dev; |
| 1386 | dev->udev = interface_to_usbdev(intf); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1387 | dev->pixelformat = formats[0].pixelformat; |
| 1388 | dev->buffersize = formats[0].buffersize; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1389 | dev->f_adc = bands_adc_dac[0].rangelow; |
| 1390 | dev->f_dac = bands_adc_dac[0].rangelow; |
| 1391 | dev->f_rx = bands_rx_tx[0].rangelow; |
| 1392 | dev->f_tx = bands_rx_tx[0].rangelow; |
| 1393 | set_bit(RX_ADC_FREQUENCY, &dev->flags); |
| 1394 | set_bit(TX_DAC_FREQUENCY, &dev->flags); |
| 1395 | set_bit(RX_RF_FREQUENCY, &dev->flags); |
| 1396 | set_bit(TX_RF_FREQUENCY, &dev->flags); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1397 | |
| 1398 | /* Detect device */ |
| 1399 | ret = hackrf_ctrl_msg(dev, CMD_BOARD_ID_READ, 0, 0, &u8tmp, 1); |
| 1400 | if (ret == 0) |
| 1401 | ret = hackrf_ctrl_msg(dev, CMD_VERSION_STRING_READ, 0, 0, |
| 1402 | buf, BUF_SIZE); |
| 1403 | if (ret) { |
| 1404 | dev_err(dev->dev, "Could not detect board\n"); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1405 | goto err_kfree; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1406 | } |
| 1407 | |
| 1408 | buf[BUF_SIZE - 1] = '\0'; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1409 | dev_info(dev->dev, "Board ID: %02x\n", u8tmp); |
| 1410 | dev_info(dev->dev, "Firmware version: %s\n", buf); |
| 1411 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1412 | /* Init vb2 queue structure for receiver */ |
| 1413 | dev->rx_vb2_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; |
| 1414 | dev->rx_vb2_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | |
| 1415 | VB2_READ; |
| 1416 | dev->rx_vb2_queue.ops = &hackrf_vb2_ops; |
| 1417 | dev->rx_vb2_queue.mem_ops = &vb2_vmalloc_memops; |
| 1418 | dev->rx_vb2_queue.drv_priv = dev; |
| 1419 | dev->rx_vb2_queue.buf_struct_size = sizeof(struct hackrf_buffer); |
| 1420 | dev->rx_vb2_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
| 1421 | ret = vb2_queue_init(&dev->rx_vb2_queue); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1422 | if (ret) { |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1423 | dev_err(dev->dev, "Could not initialize rx vb2 queue\n"); |
| 1424 | goto err_kfree; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1425 | } |
| 1426 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1427 | /* Init vb2 queue structure for transmitter */ |
| 1428 | dev->tx_vb2_queue.type = V4L2_BUF_TYPE_SDR_OUTPUT; |
| 1429 | dev->tx_vb2_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | |
| 1430 | VB2_WRITE; |
| 1431 | dev->tx_vb2_queue.ops = &hackrf_vb2_ops; |
| 1432 | dev->tx_vb2_queue.mem_ops = &vb2_vmalloc_memops; |
| 1433 | dev->tx_vb2_queue.drv_priv = dev; |
| 1434 | dev->tx_vb2_queue.buf_struct_size = sizeof(struct hackrf_buffer); |
| 1435 | dev->tx_vb2_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
| 1436 | ret = vb2_queue_init(&dev->tx_vb2_queue); |
| 1437 | if (ret) { |
| 1438 | dev_err(dev->dev, "Could not initialize tx vb2 queue\n"); |
| 1439 | goto err_kfree; |
| 1440 | } |
| 1441 | |
| 1442 | /* Register controls for receiver */ |
| 1443 | v4l2_ctrl_handler_init(&dev->rx_ctrl_handler, 5); |
| 1444 | dev->rx_bandwidth_auto = v4l2_ctrl_new_std(&dev->rx_ctrl_handler, |
| 1445 | &hackrf_ctrl_ops_rx, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, |
| 1446 | 0, 1, 0, 1); |
| 1447 | dev->rx_bandwidth = v4l2_ctrl_new_std(&dev->rx_ctrl_handler, |
| 1448 | &hackrf_ctrl_ops_rx, V4L2_CID_RF_TUNER_BANDWIDTH, |
| 1449 | 1750000, 28000000, 50000, 1750000); |
| 1450 | v4l2_ctrl_auto_cluster(2, &dev->rx_bandwidth_auto, 0, false); |
| 1451 | dev->rx_rf_gain = v4l2_ctrl_new_std(&dev->rx_ctrl_handler, |
| 1452 | &hackrf_ctrl_ops_rx, V4L2_CID_RF_TUNER_RF_GAIN, 0, 12, 12, 0); |
| 1453 | dev->rx_lna_gain = v4l2_ctrl_new_std(&dev->rx_ctrl_handler, |
| 1454 | &hackrf_ctrl_ops_rx, V4L2_CID_RF_TUNER_LNA_GAIN, 0, 40, 8, 0); |
| 1455 | dev->rx_if_gain = v4l2_ctrl_new_std(&dev->rx_ctrl_handler, |
| 1456 | &hackrf_ctrl_ops_rx, V4L2_CID_RF_TUNER_IF_GAIN, 0, 62, 2, 0); |
| 1457 | if (dev->rx_ctrl_handler.error) { |
| 1458 | ret = dev->rx_ctrl_handler.error; |
| 1459 | dev_err(dev->dev, "Could not initialize controls\n"); |
| 1460 | goto err_v4l2_ctrl_handler_free_rx; |
| 1461 | } |
Antti Palosaari | d47fa53 | 2015-10-23 20:01:31 -0200 | [diff] [blame] | 1462 | v4l2_ctrl_grab(dev->rx_rf_gain, !hackrf_enable_rf_gain_ctrl); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1463 | v4l2_ctrl_handler_setup(&dev->rx_ctrl_handler); |
| 1464 | |
| 1465 | /* Register controls for transmitter */ |
| 1466 | v4l2_ctrl_handler_init(&dev->tx_ctrl_handler, 4); |
| 1467 | dev->tx_bandwidth_auto = v4l2_ctrl_new_std(&dev->tx_ctrl_handler, |
| 1468 | &hackrf_ctrl_ops_tx, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, |
| 1469 | 0, 1, 0, 1); |
| 1470 | dev->tx_bandwidth = v4l2_ctrl_new_std(&dev->tx_ctrl_handler, |
| 1471 | &hackrf_ctrl_ops_tx, V4L2_CID_RF_TUNER_BANDWIDTH, |
| 1472 | 1750000, 28000000, 50000, 1750000); |
| 1473 | v4l2_ctrl_auto_cluster(2, &dev->tx_bandwidth_auto, 0, false); |
| 1474 | dev->tx_lna_gain = v4l2_ctrl_new_std(&dev->tx_ctrl_handler, |
| 1475 | &hackrf_ctrl_ops_tx, V4L2_CID_RF_TUNER_LNA_GAIN, 0, 47, 1, 0); |
| 1476 | dev->tx_rf_gain = v4l2_ctrl_new_std(&dev->tx_ctrl_handler, |
| 1477 | &hackrf_ctrl_ops_tx, V4L2_CID_RF_TUNER_RF_GAIN, 0, 15, 15, 0); |
| 1478 | if (dev->tx_ctrl_handler.error) { |
| 1479 | ret = dev->tx_ctrl_handler.error; |
| 1480 | dev_err(dev->dev, "Could not initialize controls\n"); |
| 1481 | goto err_v4l2_ctrl_handler_free_tx; |
| 1482 | } |
Antti Palosaari | d47fa53 | 2015-10-23 20:01:31 -0200 | [diff] [blame] | 1483 | v4l2_ctrl_grab(dev->tx_rf_gain, !hackrf_enable_rf_gain_ctrl); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1484 | v4l2_ctrl_handler_setup(&dev->tx_ctrl_handler); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1485 | |
| 1486 | /* Register the v4l2_device structure */ |
| 1487 | dev->v4l2_dev.release = hackrf_video_release; |
| 1488 | ret = v4l2_device_register(&intf->dev, &dev->v4l2_dev); |
| 1489 | if (ret) { |
| 1490 | dev_err(dev->dev, "Failed to register v4l2-device (%d)\n", ret); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1491 | goto err_v4l2_ctrl_handler_free_tx; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1492 | } |
| 1493 | |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1494 | /* Init video_device structure for receiver */ |
| 1495 | dev->rx_vdev = hackrf_template; |
| 1496 | dev->rx_vdev.queue = &dev->rx_vb2_queue; |
| 1497 | dev->rx_vdev.queue->lock = &dev->vb_queue_lock; |
| 1498 | dev->rx_vdev.v4l2_dev = &dev->v4l2_dev; |
| 1499 | dev->rx_vdev.ctrl_handler = &dev->rx_ctrl_handler; |
| 1500 | dev->rx_vdev.lock = &dev->v4l2_lock; |
| 1501 | dev->rx_vdev.vfl_dir = VFL_DIR_RX; |
| 1502 | video_set_drvdata(&dev->rx_vdev, dev); |
| 1503 | ret = video_register_device(&dev->rx_vdev, VFL_TYPE_SDR, -1); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1504 | if (ret) { |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1505 | dev_err(dev->dev, |
| 1506 | "Failed to register as video device (%d)\n", ret); |
| 1507 | goto err_v4l2_device_unregister; |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1508 | } |
| 1509 | dev_info(dev->dev, "Registered as %s\n", |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1510 | video_device_node_name(&dev->rx_vdev)); |
| 1511 | |
| 1512 | /* Init video_device structure for transmitter */ |
| 1513 | dev->tx_vdev = hackrf_template; |
| 1514 | dev->tx_vdev.queue = &dev->tx_vb2_queue; |
| 1515 | dev->tx_vdev.queue->lock = &dev->vb_queue_lock; |
| 1516 | dev->tx_vdev.v4l2_dev = &dev->v4l2_dev; |
| 1517 | dev->tx_vdev.ctrl_handler = &dev->tx_ctrl_handler; |
| 1518 | dev->tx_vdev.lock = &dev->v4l2_lock; |
| 1519 | dev->tx_vdev.vfl_dir = VFL_DIR_TX; |
| 1520 | video_set_drvdata(&dev->tx_vdev, dev); |
| 1521 | ret = video_register_device(&dev->tx_vdev, VFL_TYPE_SDR, -1); |
| 1522 | if (ret) { |
| 1523 | dev_err(dev->dev, |
| 1524 | "Failed to register as video device (%d)\n", ret); |
| 1525 | goto err_video_unregister_device_rx; |
| 1526 | } |
| 1527 | dev_info(dev->dev, "Registered as %s\n", |
| 1528 | video_device_node_name(&dev->tx_vdev)); |
| 1529 | |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1530 | dev_notice(dev->dev, "SDR API is still slightly experimental and functionality changes may follow\n"); |
| 1531 | return 0; |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1532 | err_video_unregister_device_rx: |
| 1533 | video_unregister_device(&dev->rx_vdev); |
| 1534 | err_v4l2_device_unregister: |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1535 | v4l2_device_unregister(&dev->v4l2_dev); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1536 | err_v4l2_ctrl_handler_free_tx: |
| 1537 | v4l2_ctrl_handler_free(&dev->tx_ctrl_handler); |
| 1538 | err_v4l2_ctrl_handler_free_rx: |
| 1539 | v4l2_ctrl_handler_free(&dev->rx_ctrl_handler); |
| 1540 | err_kfree: |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1541 | kfree(dev); |
Antti Palosaari | 8bc4a9e | 2015-10-10 13:51:06 -0300 | [diff] [blame] | 1542 | err: |
Antti Palosaari | eb35cf4 | 2015-10-21 19:02:41 -0200 | [diff] [blame] | 1543 | dev_dbg(&intf->dev, "failed=%d\n", ret); |
Antti Palosaari | 969ec1f | 2014-08-23 04:40:01 -0300 | [diff] [blame] | 1544 | return ret; |
| 1545 | } |
| 1546 | |
| 1547 | /* USB device ID list */ |
| 1548 | static struct usb_device_id hackrf_id_table[] = { |
| 1549 | { USB_DEVICE(0x1d50, 0x6089) }, /* HackRF One */ |
| 1550 | { } |
| 1551 | }; |
| 1552 | MODULE_DEVICE_TABLE(usb, hackrf_id_table); |
| 1553 | |
| 1554 | /* USB subsystem interface */ |
| 1555 | static struct usb_driver hackrf_driver = { |
| 1556 | .name = KBUILD_MODNAME, |
| 1557 | .probe = hackrf_probe, |
| 1558 | .disconnect = hackrf_disconnect, |
| 1559 | .id_table = hackrf_id_table, |
| 1560 | }; |
| 1561 | |
| 1562 | module_usb_driver(hackrf_driver); |
| 1563 | |
| 1564 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); |
| 1565 | MODULE_DESCRIPTION("HackRF"); |
| 1566 | MODULE_LICENSE("GPL"); |