1634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* 2634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * AirSpy SDR driver 3634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * 4634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * Copyright (C) 2014 Antti Palosaari <crope@iki.fi> 5634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * 6634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * This program is free software; you can redistribute it and/or modify 7634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * it under the terms of the GNU General Public License as published by 8634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * the Free Software Foundation; either version 2 of the License, or 9634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * (at your option) any later version. 10634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * 11634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * This program is distributed in the hope that it will be useful, 12634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * but WITHOUT ANY WARRANTY; without even the implied warranty of 13634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * GNU General Public License for more details. 15634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari */ 16634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 17634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#include <linux/module.h> 18634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#include <linux/slab.h> 19634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#include <linux/usb.h> 20634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#include <media/v4l2-device.h> 21634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#include <media/v4l2-ioctl.h> 22634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#include <media/v4l2-ctrls.h> 23634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#include <media/v4l2-event.h> 24634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#include <media/videobuf2-vmalloc.h> 25634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 26634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* AirSpy USB API commands (from AirSpy Library) */ 27634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarienum { 28634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_INVALID = 0x00, 29634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_RECEIVER_MODE = 0x01, 30634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SI5351C_WRITE = 0x02, 31634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SI5351C_READ = 0x03, 32634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_R820T_WRITE = 0x04, 33634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_R820T_READ = 0x05, 34634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SPIFLASH_ERASE = 0x06, 35634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SPIFLASH_WRITE = 0x07, 36634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SPIFLASH_READ = 0x08, 37634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_BOARD_ID_READ = 0x09, 38634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_VERSION_STRING_READ = 0x0a, 39634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_BOARD_PARTID_SERIALNO_READ = 0x0b, 40634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SET_SAMPLE_RATE = 0x0c, 41634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SET_FREQ = 0x0d, 42634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SET_LNA_GAIN = 0x0e, 43634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SET_MIXER_GAIN = 0x0f, 44634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SET_VGA_GAIN = 0x10, 45634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SET_LNA_AGC = 0x11, 46634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SET_MIXER_AGC = 0x12, 47634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari CMD_SET_PACKING = 0x13, 48634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 49634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 50634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* 51634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * bEndpointAddress 0x81 EP 1 IN 52634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * Transfer Type Bulk 53634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * wMaxPacketSize 0x0200 1x 512 bytes 54634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari */ 55634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#define MAX_BULK_BUFS (6) 56634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#define BULK_BUFFER_SIZE (128 * 512) 57634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 58634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic const struct v4l2_frequency_band bands[] = { 59634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari { 60634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .tuner = 0, 61634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .type = V4L2_TUNER_ADC, 62634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .index = 0, 63634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, 64634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .rangelow = 20000000, 65eb83eab7fec5a5137e95717188e57310a0ebc051Antti Palosaari .rangehigh = 20000000, 66634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari }, 67634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 68634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 69634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic const struct v4l2_frequency_band bands_rf[] = { 70634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari { 71634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .tuner = 1, 72634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .type = V4L2_TUNER_RF, 73634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .index = 0, 74634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, 75634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .rangelow = 24000000, 76634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .rangehigh = 1750000000, 77634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari }, 78634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 79634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 80634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* stream formats */ 81634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristruct airspy_format { 82634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari char *name; 83634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u32 pixelformat; 841b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari u32 buffersize; 85634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 86634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 87634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* format descriptions for capture and preview */ 88634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct airspy_format formats[] = { 89634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari { 90634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .name = "Real U12LE", 911b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari .pixelformat = V4L2_SDR_FMT_RU12LE, 921b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari .buffersize = BULK_BUFFER_SIZE, 93634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari }, 94634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 95634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 96634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); 97634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 98634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* intermediate buffers with raw data from the USB device */ 99634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristruct airspy_frame_buf { 100634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct vb2_buffer vb; /* common v4l buffer stuff -- must be first */ 101634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct list_head list; 102634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 103634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 104634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristruct airspy { 105634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#define POWER_ON (1 << 1) 106634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#define URB_BUF (1 << 2) 107634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#define USB_STATE_URB_BUF (1 << 3) 108634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned long flags; 109634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 110617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari struct device *dev; 111634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct usb_device *udev; 112634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct video_device vdev; 113634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_device v4l2_dev; 114634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 115634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* videobuf2 queue and queued buffers list */ 116634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct vb2_queue vb_queue; 117634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct list_head queued_bufs; 118634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spinlock_t queued_bufs_lock; /* Protects queued_bufs */ 119634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned sequence; /* Buffer sequence counter */ 120634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int vb_full; /* vb is full and packets dropped */ 121634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 122634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Note if taking both locks v4l2_lock must always be locked first! */ 123634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct mutex v4l2_lock; /* Protects everything else */ 124634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */ 125634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 126634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct urb *urb_list[MAX_BULK_BUFS]; 127634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int buf_num; 128634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned long buf_size; 129634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 *buf_list[MAX_BULK_BUFS]; 130634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dma_addr_t dma_addr[MAX_BULK_BUFS]; 131634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int urbs_initialized; 132634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int urbs_submitted; 133634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 134634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* USB control message buffer */ 135634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari #define BUF_SIZE 24 136634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 buf[BUF_SIZE]; 137634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 138634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Current configuration */ 139634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int f_adc; 140634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int f_rf; 141634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u32 pixelformat; 1421b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari u32 buffersize; 143634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 144634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Controls */ 145634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl_handler hdl; 146634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl *lna_gain_auto; 147634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl *lna_gain; 148634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl *mixer_gain_auto; 149634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl *mixer_gain; 150634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl *if_gain; 151634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 152634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Sample rate calc */ 153634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned long jiffies_next; 154634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int sample; 155634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int sample_measured; 156634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 157634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 158617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari#define airspy_dbg_usb_control_msg(_dev, _r, _t, _v, _i, _b, _l) { \ 159634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari char *_direction; \ 160634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (_t & USB_DIR_IN) \ 161634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari _direction = "<<<"; \ 162634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari else \ 163634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari _direction = ">>>"; \ 164617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(_dev, "%02x %02x %02x %02x %02x %02x %02x %02x %s %*ph\n", \ 165617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari _t, _r, _v & 0xff, _v >> 8, _i & 0xff, _i >> 8, \ 166617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari _l & 0xff, _l >> 8, _direction, _l, _b); \ 167634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 168634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 169634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* execute firmware command */ 170634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_ctrl_msg(struct airspy *s, u8 request, u16 value, u16 index, 171634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 *data, u16 size) 172634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 173634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 174634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int pipe; 175634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 requesttype; 176634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 177634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari switch (request) { 178634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_RECEIVER_MODE: 179634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_FREQ: 180634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari pipe = usb_sndctrlpipe(s->udev, 0); 181634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT); 182634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 183634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_BOARD_ID_READ: 184634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_VERSION_STRING_READ: 185634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_BOARD_PARTID_SERIALNO_READ: 186634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_LNA_GAIN: 187634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_MIXER_GAIN: 188634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_VGA_GAIN: 189634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_LNA_AGC: 190634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_MIXER_AGC: 191634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari pipe = usb_rcvctrlpipe(s->udev, 0); 192634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari requesttype = (USB_TYPE_VENDOR | USB_DIR_IN); 193634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 194634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari default: 195617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_err(s->dev, "Unknown command %02x\n", request); 196634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 197634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 198634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 199634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 200634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* write request */ 201634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (!(requesttype & USB_DIR_IN)) 202634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memcpy(s->buf, data, size); 203634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 204634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = usb_control_msg(s->udev, pipe, request, requesttype, value, 205634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari index, s->buf, size, 1000); 206617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari airspy_dbg_usb_control_msg(s->dev, request, requesttype, value, 207634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari index, s->buf, size); 208634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret < 0) { 209617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_err(s->dev, "usb_control_msg() failed %d request %02x\n", 210634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret, request); 211634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 212634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 213634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 214634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* read request */ 215634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (requesttype & USB_DIR_IN) 216634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memcpy(data, s->buf, size); 217634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 218634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 219634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr: 220634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 221634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 222634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 223634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* Private functions */ 224634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct airspy_frame_buf *airspy_get_next_fill_buf(struct airspy *s) 225634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 2268880f2cbdb0a981ea8e6a5ce2915abac26120523Antti Palosaari unsigned long flags; 227634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf *buf = NULL; 228634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 229634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_lock_irqsave(&s->queued_bufs_lock, flags); 230634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (list_empty(&s->queued_bufs)) 231634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto leave; 232634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 233634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf = list_entry(s->queued_bufs.next, 234634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf, list); 235634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari list_del(&buf->list); 236634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarileave: 237634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_unlock_irqrestore(&s->queued_bufs_lock, flags); 238634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return buf; 239634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 240634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 241634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic unsigned int airspy_convert_stream(struct airspy *s, 242634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari void *dst, void *src, unsigned int src_len) 243634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 244634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int dst_len; 245634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 246634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->pixelformat == V4L2_SDR_FMT_RU12LE) { 247634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memcpy(dst, src, src_len); 248634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dst_len = src_len; 249634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 250634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dst_len = 0; 251634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 252634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 253b8843c7979fc8ea54efeaef8e9d524c33c42f099Antti Palosaari /* calculate sample rate and output it in 10 seconds intervals */ 254634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (unlikely(time_is_before_jiffies(s->jiffies_next))) { 255634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari #define MSECS 10000UL 256b8843c7979fc8ea54efeaef8e9d524c33c42f099Antti Palosaari unsigned int msecs = jiffies_to_msecs(jiffies - 257b8843c7979fc8ea54efeaef8e9d524c33c42f099Antti Palosaari s->jiffies_next + msecs_to_jiffies(MSECS)); 258634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int samples = s->sample - s->sample_measured; 2597057005db6482516099e7b48b3bebaf9a3f213cbAntti Palosaari 260634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->jiffies_next = jiffies + msecs_to_jiffies(MSECS); 261634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->sample_measured = s->sample; 262b8843c7979fc8ea54efeaef8e9d524c33c42f099Antti Palosaari dev_dbg(s->dev, "slen=%u samples=%u msecs=%u sample rate=%lu\n", 263b8843c7979fc8ea54efeaef8e9d524c33c42f099Antti Palosaari src_len, samples, msecs, 264b8843c7979fc8ea54efeaef8e9d524c33c42f099Antti Palosaari samples * 1000UL / msecs); 265634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 266634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 267634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* total number of samples */ 268634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->sample += src_len / 2; 269634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 270634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return dst_len; 271634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 272634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 273634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* 274634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * This gets called for the bulk stream pipe. This is done in interrupt 275634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * time, so it has to be fast, not crash, and not stall. Neat. 276634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari */ 277634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_urb_complete(struct urb *urb) 278634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 279634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = urb->context; 280634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf *fbuf; 281634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 282617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg_ratelimited(s->dev, "status=%d length=%d/%d errors=%d\n", 283617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari urb->status, urb->actual_length, 284634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari urb->transfer_buffer_length, urb->error_count); 285634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 286634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari switch (urb->status) { 287634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case 0: /* success */ 288634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case -ETIMEDOUT: /* NAK */ 289634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 290634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case -ECONNRESET: /* kill */ 291634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case -ENOENT: 292634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case -ESHUTDOWN: 293634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return; 294634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari default: /* error */ 295617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_err_ratelimited(s->dev, "URB failed %d\n", urb->status); 296634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 297634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 298634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 299634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (likely(urb->actual_length > 0)) { 300634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari void *ptr; 301634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int len; 302634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* get free framebuffer */ 303634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari fbuf = airspy_get_next_fill_buf(s); 304634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (unlikely(fbuf == NULL)) { 305634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_full++; 306617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_notice_ratelimited(s->dev, 307634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "videobuf is full, %d packets dropped\n", 308634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_full); 309634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto skip; 310634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 311634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 312634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* fill framebuffer */ 313634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ptr = vb2_plane_vaddr(&fbuf->vb, 0); 314634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari len = airspy_convert_stream(s, ptr, urb->transfer_buffer, 315634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari urb->actual_length); 316634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari vb2_set_plane_payload(&fbuf->vb, 0, len); 317634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_get_timestamp(&fbuf->vb.v4l2_buf.timestamp); 318634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari fbuf->vb.v4l2_buf.sequence = s->sequence++; 319634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE); 320634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 321634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaariskip: 322634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_submit_urb(urb, GFP_ATOMIC); 323634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 324634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 325634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_kill_urbs(struct airspy *s) 326634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 327634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i; 328634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 329634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = s->urbs_submitted - 1; i >= 0; i--) { 330617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "kill urb=%d\n", i); 331634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* stop the URB */ 332634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_kill_urb(s->urb_list[i]); 333634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 334634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urbs_submitted = 0; 335634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 336634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 337634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 338634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 339634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_submit_urbs(struct airspy *s) 340634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 341634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i, ret; 342634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 343634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = 0; i < s->urbs_initialized; i++) { 344617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "submit urb=%d\n", i); 345634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = usb_submit_urb(s->urb_list[i], GFP_ATOMIC); 346634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) { 347617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_err(s->dev, "Could not submit URB no. %d - get them all back\n", 348634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari i); 349634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_kill_urbs(s); 350634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 351634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 352634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urbs_submitted++; 353634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 354634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 355634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 356634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 357634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 358634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_free_stream_bufs(struct airspy *s) 359634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 360634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->flags & USB_STATE_URB_BUF) { 361634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari while (s->buf_num) { 362634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_num--; 363617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "free buf=%d\n", s->buf_num); 364634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_free_coherent(s->udev, s->buf_size, 365634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_list[s->buf_num], 366634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->dma_addr[s->buf_num]); 367634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 368634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 369634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->flags &= ~USB_STATE_URB_BUF; 370634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 371634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 372634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 373634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 374634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_alloc_stream_bufs(struct airspy *s) 375634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 376634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_num = 0; 377634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_size = BULK_BUFFER_SIZE; 378634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 379617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "all in all I will use %u bytes for streaming\n", 380617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari MAX_BULK_BUFS * BULK_BUFFER_SIZE); 381634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 382634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (s->buf_num = 0; s->buf_num < MAX_BULK_BUFS; s->buf_num++) { 383634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_list[s->buf_num] = usb_alloc_coherent(s->udev, 384634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari BULK_BUFFER_SIZE, GFP_ATOMIC, 385634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari &s->dma_addr[s->buf_num]); 386634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (!s->buf_list[s->buf_num]) { 387617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "alloc buf=%d failed\n", s->buf_num); 388634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_free_stream_bufs(s); 389634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -ENOMEM; 390634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 391634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 392617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "alloc buf=%d %p (dma %llu)\n", s->buf_num, 393634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_list[s->buf_num], 394634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari (long long)s->dma_addr[s->buf_num]); 395634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->flags |= USB_STATE_URB_BUF; 396634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 397634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 398634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 399634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 400634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 401634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_free_urbs(struct airspy *s) 402634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 403634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i; 404634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 405634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_kill_urbs(s); 406634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 407634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = s->urbs_initialized - 1; i >= 0; i--) { 408634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->urb_list[i]) { 409617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "free urb=%d\n", i); 410634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* free the URBs */ 411634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_free_urb(s->urb_list[i]); 412634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 413634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 414634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urbs_initialized = 0; 415634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 416634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 417634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 418634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 419634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_alloc_urbs(struct airspy *s) 420634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 421634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i, j; 422634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 423634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* allocate the URBs */ 424634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = 0; i < MAX_BULK_BUFS; i++) { 425617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "alloc urb=%d\n", i); 426634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC); 427634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (!s->urb_list[i]) { 428617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "failed\n"); 429634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (j = 0; j < i; j++) 430634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_free_urb(s->urb_list[j]); 431634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -ENOMEM; 432634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 433634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_fill_bulk_urb(s->urb_list[i], 434634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->udev, 435634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_rcvbulkpipe(s->udev, 0x81), 436634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_list[i], 437634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari BULK_BUFFER_SIZE, 438634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_urb_complete, s); 439634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 440634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; 441634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urb_list[i]->transfer_dma = s->dma_addr[i]; 442634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urbs_initialized++; 443634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 444634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 445634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 446634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 447634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 448634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* Must be called with vb_queue_lock hold */ 449634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_cleanup_queued_bufs(struct airspy *s) 450634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 4518880f2cbdb0a981ea8e6a5ce2915abac26120523Antti Palosaari unsigned long flags; 452634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 453617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "\n"); 454634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 455634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_lock_irqsave(&s->queued_bufs_lock, flags); 456634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari while (!list_empty(&s->queued_bufs)) { 457634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf *buf; 4587057005db6482516099e7b48b3bebaf9a3f213cbAntti Palosaari 459634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf = list_entry(s->queued_bufs.next, 460634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf, list); 461634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari list_del(&buf->list); 462634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 463634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 464634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_unlock_irqrestore(&s->queued_bufs_lock, flags); 465634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 466634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 467634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* The user yanked out the cable... */ 468634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_disconnect(struct usb_interface *intf) 469634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 470634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_device *v = usb_get_intfdata(intf); 471634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = container_of(v, struct airspy, v4l2_dev); 472634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 473617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "\n"); 474634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 475634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_lock(&s->vb_queue_lock); 476634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_lock(&s->v4l2_lock); 477634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* No need to keep the urbs around after disconnection */ 478634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->udev = NULL; 479634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_device_disconnect(&s->v4l2_dev); 480634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari video_unregister_device(&s->vdev); 481634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_unlock(&s->v4l2_lock); 482634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_unlock(&s->vb_queue_lock); 483634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 484634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_device_put(&s->v4l2_dev); 485634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 486634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 487634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* Videobuf2 operations */ 488634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_queue_setup(struct vb2_queue *vq, 489634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari const struct v4l2_format *fmt, unsigned int *nbuffers, 490634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) 491634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 492634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = vb2_get_drv_priv(vq); 493634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 494617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "nbuffers=%d\n", *nbuffers); 495634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 496634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Need at least 8 buffers */ 497634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (vq->num_buffers + *nbuffers < 8) 498634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari *nbuffers = 8 - vq->num_buffers; 499634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari *nplanes = 1; 5001b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari sizes[0] = PAGE_ALIGN(s->buffersize); 501634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 502617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]); 503634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 504634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 505634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 506634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_buf_queue(struct vb2_buffer *vb) 507634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 508634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = vb2_get_drv_priv(vb->vb2_queue); 509634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf *buf = 510634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari container_of(vb, struct airspy_frame_buf, vb); 5118880f2cbdb0a981ea8e6a5ce2915abac26120523Antti Palosaari unsigned long flags; 512634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 513634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Check the device has not disconnected between prep and queuing */ 514634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (unlikely(!s->udev)) { 515634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 516634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return; 517634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 518634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 519634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_lock_irqsave(&s->queued_bufs_lock, flags); 520634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari list_add_tail(&buf->list, &s->queued_bufs); 521634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_unlock_irqrestore(&s->queued_bufs_lock, flags); 522634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 523634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 524634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_start_streaming(struct vb2_queue *vq, unsigned int count) 525634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 526634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = vb2_get_drv_priv(vq); 527634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 528634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 529617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "\n"); 530634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 531634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (!s->udev) 532634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -ENODEV; 533634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 534634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_lock(&s->v4l2_lock); 535634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 536634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->sequence = 0; 537634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 5386b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari set_bit(POWER_ON, &s->flags); 5396b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari 540634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_alloc_stream_bufs(s); 541634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 5426b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari goto err_clear_bit; 543634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 544634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_alloc_urbs(s); 545634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 5466b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari goto err_free_stream_bufs; 547634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 548634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_submit_urbs(s); 549634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 5506b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari goto err_free_urbs; 551634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 552634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* start hardware streaming */ 553634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_RECEIVER_MODE, 1, 0, NULL, 0); 554634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 5556b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari goto err_kill_urbs; 5566b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari 5576b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari goto exit_mutex_unlock; 5586b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari 5596b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaarierr_kill_urbs: 5606b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari airspy_kill_urbs(s); 5616b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaarierr_free_urbs: 5626b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari airspy_free_urbs(s); 5636b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaarierr_free_stream_bufs: 5646b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari airspy_free_stream_bufs(s); 5656b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaarierr_clear_bit: 5666b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari clear_bit(POWER_ON, &s->flags); 5676b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari 5686b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari /* return all queued buffers to vb2 */ 5696b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari { 5706b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari struct airspy_frame_buf *buf, *tmp; 5716b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari 5726b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari list_for_each_entry_safe(buf, tmp, &s->queued_bufs, list) { 5736b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari list_del(&buf->list); 5746b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED); 5756b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari } 5766b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari } 5776b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaari 5786b831d78477c9bbfbcb4cb60af13e13bd2c7467eAntti Palosaariexit_mutex_unlock: 579634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_unlock(&s->v4l2_lock); 580634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 581634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 582634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 583634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 584634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_stop_streaming(struct vb2_queue *vq) 585634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 586634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = vb2_get_drv_priv(vq); 587634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 588617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "\n"); 589634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 590634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_lock(&s->v4l2_lock); 591634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 592634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* stop hardware streaming */ 593d9d889d3249a6fee8ba61d0ea0e6f0a8e857c832Mauro Carvalho Chehab airspy_ctrl_msg(s, CMD_RECEIVER_MODE, 0, 0, NULL, 0); 594634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 595634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_kill_urbs(s); 596634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_free_urbs(s); 597634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_free_stream_bufs(s); 598634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 599634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_cleanup_queued_bufs(s); 600634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 601634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari clear_bit(POWER_ON, &s->flags); 602634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 603634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_unlock(&s->v4l2_lock); 604634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 605634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 606634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct vb2_ops airspy_vb2_ops = { 607634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .queue_setup = airspy_queue_setup, 608634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .buf_queue = airspy_buf_queue, 609634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .start_streaming = airspy_start_streaming, 610634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .stop_streaming = airspy_stop_streaming, 611634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .wait_prepare = vb2_ops_wait_prepare, 612634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .wait_finish = vb2_ops_wait_finish, 613634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 614634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 615634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_querycap(struct file *file, void *fh, 616634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_capability *cap) 617634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 618634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 619634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 620634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); 621634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari strlcpy(cap->card, s->vdev.name, sizeof(cap->card)); 622634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_make_path(s->udev, cap->bus_info, sizeof(cap->bus_info)); 623634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING | 624634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CAP_READWRITE | V4L2_CAP_TUNER; 625634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; 626634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 627634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 628634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 629634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 630634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_enum_fmt_sdr_cap(struct file *file, void *priv, 631634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_fmtdesc *f) 632634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 633634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (f->index >= NUM_FORMATS) 634634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -EINVAL; 635634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 636634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari strlcpy(f->description, formats[f->index].name, sizeof(f->description)); 637634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->pixelformat = formats[f->index].pixelformat; 638634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 639634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 640634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 641634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 642634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_g_fmt_sdr_cap(struct file *file, void *priv, 643634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_format *f) 644634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 645634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 646634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 647634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->fmt.sdr.pixelformat = s->pixelformat; 6481b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari f->fmt.sdr.buffersize = s->buffersize; 6491b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); 650634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 651634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 652634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 653634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 654634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_s_fmt_sdr_cap(struct file *file, void *priv, 655634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_format *f) 656634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 657634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 658634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct vb2_queue *q = &s->vb_queue; 659634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i; 660634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 661634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (vb2_is_busy(q)) 662634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -EBUSY; 663634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 664634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); 665634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = 0; i < NUM_FORMATS; i++) { 666634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { 6671b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari s->pixelformat = formats[i].pixelformat; 6681b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari s->buffersize = formats[i].buffersize; 6691b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari f->fmt.sdr.buffersize = formats[i].buffersize; 670634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 671634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 672634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 673634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 674634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->pixelformat = formats[0].pixelformat; 6751b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari s->buffersize = formats[0].buffersize; 6761b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari f->fmt.sdr.pixelformat = formats[0].pixelformat; 6771b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari f->fmt.sdr.buffersize = formats[0].buffersize; 678634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 679634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 680634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 681634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 682634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_try_fmt_sdr_cap(struct file *file, void *priv, 683634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_format *f) 684634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 685634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i; 686634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 687634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); 688634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = 0; i < NUM_FORMATS; i++) { 6891b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { 6901b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari f->fmt.sdr.buffersize = formats[i].buffersize; 691634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 6921b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari } 693634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 694634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 695634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->fmt.sdr.pixelformat = formats[0].pixelformat; 6961b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari f->fmt.sdr.buffersize = formats[0].buffersize; 697634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 698634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 699634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 700634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 701634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_s_tuner(struct file *file, void *priv, 702634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari const struct v4l2_tuner *v) 703634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 704634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 705634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 706634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (v->index == 0) 707634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 708634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari else if (v->index == 1) 709634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 710634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari else 711634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 712634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 713634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 714634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 715634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 716634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) 717634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 718634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 719634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 720634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (v->index == 0) { 721634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari strlcpy(v->name, "AirSpy ADC", sizeof(v->name)); 722634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->type = V4L2_TUNER_ADC; 723634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; 724634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->rangelow = bands[0].rangelow; 725634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->rangehigh = bands[0].rangehigh; 726634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 727634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else if (v->index == 1) { 728634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari strlcpy(v->name, "AirSpy RF", sizeof(v->name)); 729634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->type = V4L2_TUNER_RF; 730634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; 731634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->rangelow = bands_rf[0].rangelow; 732634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->rangehigh = bands_rf[0].rangehigh; 733634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 734634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 735634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 736634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 737634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 738634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 739634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 740634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 741634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_g_frequency(struct file *file, void *priv, 742634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_frequency *f) 743634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 744634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 745617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari int ret; 746634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 747634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (f->tuner == 0) { 748634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->type = V4L2_TUNER_ADC; 749634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->frequency = s->f_adc; 750617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "ADC frequency=%u Hz\n", s->f_adc); 751634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 752634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else if (f->tuner == 1) { 753634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->type = V4L2_TUNER_RF; 754634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->frequency = s->f_rf; 755617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "RF frequency=%u Hz\n", s->f_rf); 756617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari ret = 0; 757634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 758634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 759634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 760634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 761634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 762634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 763634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 764634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_s_frequency(struct file *file, void *priv, 765634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari const struct v4l2_frequency *f) 766634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 767634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 768634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 769634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 buf[4]; 770634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 771634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (f->tuner == 0) { 772634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->f_adc = clamp_t(unsigned int, f->frequency, 773634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari bands[0].rangelow, 774634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari bands[0].rangehigh); 775617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "ADC frequency=%u Hz\n", s->f_adc); 776634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 777634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else if (f->tuner == 1) { 778634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->f_rf = clamp_t(unsigned int, f->frequency, 779634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari bands_rf[0].rangelow, 780634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari bands_rf[0].rangehigh); 781617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "RF frequency=%u Hz\n", s->f_rf); 782634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf[0] = (s->f_rf >> 0) & 0xff; 783634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf[1] = (s->f_rf >> 8) & 0xff; 784634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf[2] = (s->f_rf >> 16) & 0xff; 785634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf[3] = (s->f_rf >> 24) & 0xff; 786634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_FREQ, 0, 0, buf, 4); 787634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 788634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 789634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 790634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 791634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 792634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 793634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 794634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_enum_freq_bands(struct file *file, void *priv, 795634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_frequency_band *band) 796634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 797634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 7987057005db6482516099e7b48b3bebaf9a3f213cbAntti Palosaari 799634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (band->tuner == 0) { 800634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (band->index >= ARRAY_SIZE(bands)) { 801634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 802634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 803634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari *band = bands[band->index]; 804634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 805634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 806634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else if (band->tuner == 1) { 807634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (band->index >= ARRAY_SIZE(bands_rf)) { 808634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 809634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 810634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari *band = bands_rf[band->index]; 811634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 812634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 813634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 814634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 815634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 816634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 817634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 818634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 819634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 820634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic const struct v4l2_ioctl_ops airspy_ioctl_ops = { 821634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_querycap = airspy_querycap, 822634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 823634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_enum_fmt_sdr_cap = airspy_enum_fmt_sdr_cap, 824634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_g_fmt_sdr_cap = airspy_g_fmt_sdr_cap, 825634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_s_fmt_sdr_cap = airspy_s_fmt_sdr_cap, 826634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_try_fmt_sdr_cap = airspy_try_fmt_sdr_cap, 827634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 828634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_reqbufs = vb2_ioctl_reqbufs, 829634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_create_bufs = vb2_ioctl_create_bufs, 830634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 831634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_querybuf = vb2_ioctl_querybuf, 832634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_qbuf = vb2_ioctl_qbuf, 833634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_dqbuf = vb2_ioctl_dqbuf, 834634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 835634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_streamon = vb2_ioctl_streamon, 836634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_streamoff = vb2_ioctl_streamoff, 837634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 838634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_g_tuner = airspy_g_tuner, 839634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_s_tuner = airspy_s_tuner, 840634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 841634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_g_frequency = airspy_g_frequency, 842634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_s_frequency = airspy_s_frequency, 843634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_enum_freq_bands = airspy_enum_freq_bands, 844634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 845634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 846634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 847634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_log_status = v4l2_ctrl_log_status, 848634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 849634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 850634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic const struct v4l2_file_operations airspy_fops = { 851634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .owner = THIS_MODULE, 852634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .open = v4l2_fh_open, 853634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .release = vb2_fop_release, 854634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .read = vb2_fop_read, 855634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .poll = vb2_fop_poll, 856634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .mmap = vb2_fop_mmap, 857634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .unlocked_ioctl = video_ioctl2, 858634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 859634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 860634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct video_device airspy_template = { 861634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .name = "AirSpy SDR", 862634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .release = video_device_release_empty, 863634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .fops = &airspy_fops, 864634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .ioctl_ops = &airspy_ioctl_ops, 865634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 866634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 867634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_video_release(struct v4l2_device *v) 868634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 869634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = container_of(v, struct airspy, v4l2_dev); 870634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 871634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_handler_free(&s->hdl); 872634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_device_unregister(&s->v4l2_dev); 873634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari kfree(s); 874634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 875634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 876634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_set_lna_gain(struct airspy *s) 877634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 878634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 879634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 u8tmp; 880634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 881617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "lna auto=%d->%d val=%d->%d\n", 882617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari s->lna_gain_auto->cur.val, s->lna_gain_auto->val, 883617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari s->lna_gain->cur.val, s->lna_gain->val); 884634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 885634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_LNA_AGC, 0, s->lna_gain_auto->val, 886634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari &u8tmp, 1); 887634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 888634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 889634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 890634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->lna_gain_auto->val == false) { 891634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_LNA_GAIN, 0, s->lna_gain->val, 892634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari &u8tmp, 1); 893634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 894634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 895634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 896634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr: 897634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 898617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "failed=%d\n", ret); 899634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 900634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 901634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 902634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 903634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_set_mixer_gain(struct airspy *s) 904634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 905634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 906634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 u8tmp; 907634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 908617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "mixer auto=%d->%d val=%d->%d\n", 909617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari s->mixer_gain_auto->cur.val, s->mixer_gain_auto->val, 910617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari s->mixer_gain->cur.val, s->mixer_gain->val); 911634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 912634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_MIXER_AGC, 0, s->mixer_gain_auto->val, 913634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari &u8tmp, 1); 914634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 915634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 916634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 917634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->mixer_gain_auto->val == false) { 918634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_MIXER_GAIN, 0, 919634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->mixer_gain->val, &u8tmp, 1); 920634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 921634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 922634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 923634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr: 924634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 925617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "failed=%d\n", ret); 926634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 927634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 928634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 929634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 930634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_set_if_gain(struct airspy *s) 931634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 932634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 933634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 u8tmp; 934634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 935617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "val=%d->%d\n", s->if_gain->cur.val, s->if_gain->val); 936634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 937634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_VGA_GAIN, 0, s->if_gain->val, 938634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari &u8tmp, 1); 939634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 940634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 941634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr: 942634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 943617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "failed=%d\n", ret); 944634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 945634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 946634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 947634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 948634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_s_ctrl(struct v4l2_ctrl *ctrl) 949634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 950634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = container_of(ctrl->handler, struct airspy, hdl); 951634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 952634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 953634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari switch (ctrl->id) { 954634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case V4L2_CID_RF_TUNER_LNA_GAIN_AUTO: 955634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case V4L2_CID_RF_TUNER_LNA_GAIN: 956634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_set_lna_gain(s); 957634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 958634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO: 959634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case V4L2_CID_RF_TUNER_MIXER_GAIN: 960634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_set_mixer_gain(s); 961634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 962634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case V4L2_CID_RF_TUNER_IF_GAIN: 963634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_set_if_gain(s); 964634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 965634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari default: 966617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_dbg(s->dev, "unknown ctrl: id=%d name=%s\n", 967617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari ctrl->id, ctrl->name); 968634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 969634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 970634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 971634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 972634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 973634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 974634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic const struct v4l2_ctrl_ops airspy_ctrl_ops = { 975634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .s_ctrl = airspy_s_ctrl, 976634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 977634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 978634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_probe(struct usb_interface *intf, 979634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari const struct usb_device_id *id) 980634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 981617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari struct airspy *s; 982634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 983634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 u8tmp, buf[BUF_SIZE]; 984634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 985634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s = kzalloc(sizeof(struct airspy), GFP_KERNEL); 986634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s == NULL) { 987617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_err(&intf->dev, "Could not allocate memory for state\n"); 988634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -ENOMEM; 989634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 990634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 991634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_init(&s->v4l2_lock); 992634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_init(&s->vb_queue_lock); 993634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_lock_init(&s->queued_bufs_lock); 994634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari INIT_LIST_HEAD(&s->queued_bufs); 995617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari s->dev = &intf->dev; 996617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari s->udev = interface_to_usbdev(intf); 997634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->f_adc = bands[0].rangelow; 998634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->f_rf = bands_rf[0].rangelow; 9991b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari s->pixelformat = formats[0].pixelformat; 10001b303e1a58599e42f858805285f03ccb5a4e18d2Antti Palosaari s->buffersize = formats[0].buffersize; 1001634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1002634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Detect device */ 1003634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_BOARD_ID_READ, 0, 0, &u8tmp, 1); 1004634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret == 0) 1005634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_VERSION_STRING_READ, 0, 0, 1006634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf, BUF_SIZE); 1007634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) { 1008617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_err(s->dev, "Could not detect board\n"); 1009634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err_free_mem; 1010634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 1011634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1012634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf[BUF_SIZE - 1] = '\0'; 1013634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1014617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_info(s->dev, "Board ID: %02x\n", u8tmp); 1015617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_info(s->dev, "Firmware version: %s\n", buf); 1016634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1017634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Init videobuf2 queue structure */ 1018634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; 1019634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; 1020634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.drv_priv = s; 1021634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.buf_struct_size = sizeof(struct airspy_frame_buf); 1022634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.ops = &airspy_vb2_ops; 1023634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.mem_ops = &vb2_vmalloc_memops; 1024634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1025634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = vb2_queue_init(&s->vb_queue); 1026634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) { 1027617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_err(s->dev, "Could not initialize vb2 queue\n"); 1028634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err_free_mem; 1029634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 1030634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1031634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Init video_device structure */ 1032634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vdev = airspy_template; 1033634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vdev.queue = &s->vb_queue; 1034634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vdev.queue->lock = &s->vb_queue_lock; 1035634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari video_set_drvdata(&s->vdev, s); 1036634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1037634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Register the v4l2_device structure */ 1038634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->v4l2_dev.release = airspy_video_release; 1039634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = v4l2_device_register(&intf->dev, &s->v4l2_dev); 1040634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) { 1041617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_err(s->dev, "Failed to register v4l2-device (%d)\n", ret); 1042634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err_free_mem; 1043634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 1044634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1045634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Register controls */ 1046634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_handler_init(&s->hdl, 5); 1047634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->lna_gain_auto = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops, 1048634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CID_RF_TUNER_LNA_GAIN_AUTO, 0, 1, 1, 0); 1049634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->lna_gain = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops, 1050634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CID_RF_TUNER_LNA_GAIN, 0, 14, 1, 8); 1051634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_auto_cluster(2, &s->lna_gain_auto, 0, false); 1052634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->mixer_gain_auto = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops, 1053634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO, 0, 1, 1, 0); 1054634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops, 1055634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CID_RF_TUNER_MIXER_GAIN, 0, 15, 1, 8); 1056634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_auto_cluster(2, &s->mixer_gain_auto, 0, false); 1057634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->if_gain = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops, 1058634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CID_RF_TUNER_IF_GAIN, 0, 15, 1, 0); 1059634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->hdl.error) { 1060634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = s->hdl.error; 1061617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_err(s->dev, "Could not initialize controls\n"); 1062634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err_free_controls; 1063634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 1064634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1065634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_handler_setup(&s->hdl); 1066634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1067634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->v4l2_dev.ctrl_handler = &s->hdl; 1068634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vdev.v4l2_dev = &s->v4l2_dev; 1069634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vdev.lock = &s->v4l2_lock; 1070634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1071634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = video_register_device(&s->vdev, VFL_TYPE_SDR, -1); 1072634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) { 1073617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_err(s->dev, "Failed to register as video device (%d)\n", 1074634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret); 1075634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err_unregister_v4l2_dev; 1076634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 1077617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_info(s->dev, "Registered as %s\n", 1078634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari video_device_node_name(&s->vdev)); 1079617123ae383e66b3a2c5f57155b49af5bb4327dbAntti Palosaari dev_notice(s->dev, "SDR API is still slightly experimental and functionality changes may follow\n"); 1080634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 1081634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1082634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr_free_controls: 1083634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_handler_free(&s->hdl); 1084634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr_unregister_v4l2_dev: 1085634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_device_unregister(&s->v4l2_dev); 1086634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr_free_mem: 1087634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari kfree(s); 1088634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 1089634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 1090634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1091634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* USB device ID list */ 1092634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct usb_device_id airspy_id_table[] = { 1093634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari { USB_DEVICE(0x1d50, 0x60a1) }, /* AirSpy */ 1094634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari { } 1095634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 1096634fe5033951b80ef4b98d8f047cb1083d29170dAntti PalosaariMODULE_DEVICE_TABLE(usb, airspy_id_table); 1097634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1098634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* USB subsystem interface */ 1099634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct usb_driver airspy_driver = { 1100634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .name = KBUILD_MODNAME, 1101634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .probe = airspy_probe, 1102634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .disconnect = airspy_disconnect, 1103634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .id_table = airspy_id_table, 1104634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 1105634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1106634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarimodule_usb_driver(airspy_driver); 1107634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1108634fe5033951b80ef4b98d8f047cb1083d29170dAntti PalosaariMODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); 1109634fe5033951b80ef4b98d8f047cb1083d29170dAntti PalosaariMODULE_DESCRIPTION("AirSpy SDR"); 1110634fe5033951b80ef4b98d8f047cb1083d29170dAntti PalosaariMODULE_LICENSE("GPL"); 1111