airspy.c revision eb83eab7fec5a5137e95717188e57310a0ebc051
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; 84634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 85634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 86634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* format descriptions for capture and preview */ 87634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct airspy_format formats[] = { 88634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari { 89634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .name = "Real U12LE", 90634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .pixelformat = V4L2_SDR_FMT_RU12LE, 91634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari }, 92634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 93634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 94634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); 95634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 96634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* intermediate buffers with raw data from the USB device */ 97634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristruct airspy_frame_buf { 98634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct vb2_buffer vb; /* common v4l buffer stuff -- must be first */ 99634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct list_head list; 100634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 101634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 102634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristruct airspy { 103634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#define POWER_ON (1 << 1) 104634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#define URB_BUF (1 << 2) 105634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#define USB_STATE_URB_BUF (1 << 3) 106634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned long flags; 107634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 108634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct usb_device *udev; 109634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct video_device vdev; 110634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_device v4l2_dev; 111634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 112634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* videobuf2 queue and queued buffers list */ 113634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct vb2_queue vb_queue; 114634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct list_head queued_bufs; 115634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spinlock_t queued_bufs_lock; /* Protects queued_bufs */ 116634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned sequence; /* Buffer sequence counter */ 117634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int vb_full; /* vb is full and packets dropped */ 118634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 119634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Note if taking both locks v4l2_lock must always be locked first! */ 120634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct mutex v4l2_lock; /* Protects everything else */ 121634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */ 122634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 123634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct urb *urb_list[MAX_BULK_BUFS]; 124634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int buf_num; 125634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned long buf_size; 126634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 *buf_list[MAX_BULK_BUFS]; 127634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dma_addr_t dma_addr[MAX_BULK_BUFS]; 128634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int urbs_initialized; 129634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int urbs_submitted; 130634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 131634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* USB control message buffer */ 132634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari #define BUF_SIZE 24 133634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 buf[BUF_SIZE]; 134634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 135634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Current configuration */ 136634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int f_adc; 137634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int f_rf; 138634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u32 pixelformat; 139634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 140634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Controls */ 141634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl_handler hdl; 142634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl *lna_gain_auto; 143634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl *lna_gain; 144634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl *mixer_gain_auto; 145634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl *mixer_gain; 146634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_ctrl *if_gain; 147634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 148634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Sample rate calc */ 149634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned long jiffies_next; 150634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int sample; 151634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int sample_measured; 152634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 153634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 154634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari#define airspy_dbg_usb_control_msg(_udev, _r, _t, _v, _i, _b, _l) { \ 155634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari char *_direction; \ 156634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (_t & USB_DIR_IN) \ 157634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari _direction = "<<<"; \ 158634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari else \ 159634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari _direction = ">>>"; \ 160634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&_udev->dev, "%s: %02x %02x %02x %02x %02x %02x %02x %02x " \ 161634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "%s %*ph\n", __func__, _t, _r, _v & 0xff, _v >> 8, \ 162634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari _i & 0xff, _i >> 8, _l & 0xff, _l >> 8, _direction, \ 163634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari _l, _b); \ 164634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 165634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 166634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* execute firmware command */ 167634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_ctrl_msg(struct airspy *s, u8 request, u16 value, u16 index, 168634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 *data, u16 size) 169634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 170634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 171634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int pipe; 172634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 requesttype; 173634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 174634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari switch (request) { 175634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_RECEIVER_MODE: 176634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_FREQ: 177634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari pipe = usb_sndctrlpipe(s->udev, 0); 178634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT); 179634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 180634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_BOARD_ID_READ: 181634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_VERSION_STRING_READ: 182634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_BOARD_PARTID_SERIALNO_READ: 183634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_LNA_GAIN: 184634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_MIXER_GAIN: 185634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_VGA_GAIN: 186634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_LNA_AGC: 187634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case CMD_SET_MIXER_AGC: 188634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari pipe = usb_rcvctrlpipe(s->udev, 0); 189634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari requesttype = (USB_TYPE_VENDOR | USB_DIR_IN); 190634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 191634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari default: 192634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_err(&s->udev->dev, "Unknown command %02x\n", request); 193634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 194634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 195634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 196634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 197634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* write request */ 198634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (!(requesttype & USB_DIR_IN)) 199634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memcpy(s->buf, data, size); 200634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 201634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = usb_control_msg(s->udev, pipe, request, requesttype, value, 202634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari index, s->buf, size, 1000); 203634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_dbg_usb_control_msg(s->udev, request, requesttype, value, 204634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari index, s->buf, size); 205634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret < 0) { 206634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_err(&s->udev->dev, 207634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "usb_control_msg() failed %d request %02x\n", 208634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret, request); 209634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 210634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 211634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 212634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* read request */ 213634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (requesttype & USB_DIR_IN) 214634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memcpy(data, s->buf, size); 215634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 216634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 217634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr: 218634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 219634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 220634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 221634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* Private functions */ 222634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct airspy_frame_buf *airspy_get_next_fill_buf(struct airspy *s) 223634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 224634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned long flags = 0; 225634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf *buf = NULL; 226634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 227634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_lock_irqsave(&s->queued_bufs_lock, flags); 228634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (list_empty(&s->queued_bufs)) 229634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto leave; 230634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 231634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf = list_entry(s->queued_bufs.next, 232634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf, list); 233634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari list_del(&buf->list); 234634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarileave: 235634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_unlock_irqrestore(&s->queued_bufs_lock, flags); 236634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return buf; 237634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 238634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 239634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic unsigned int airspy_convert_stream(struct airspy *s, 240634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari void *dst, void *src, unsigned int src_len) 241634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 242634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int dst_len; 243634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 244634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->pixelformat == V4L2_SDR_FMT_RU12LE) { 245634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memcpy(dst, src, src_len); 246634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dst_len = src_len; 247634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 248634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dst_len = 0; 249634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 250634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 251634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* calculate samping rate and output it in 10 seconds intervals */ 252634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (unlikely(time_is_before_jiffies(s->jiffies_next))) { 253634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari #define MSECS 10000UL 254634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int samples = s->sample - s->sample_measured; 255634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->jiffies_next = jiffies + msecs_to_jiffies(MSECS); 256634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->sample_measured = s->sample; 257634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, 258634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "slen=%d samples=%u msecs=%lu sample rate=%lu\n", 259634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari src_len, samples, MSECS, 260634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari samples * 1000UL / MSECS); 261634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 262634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 263634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* total number of samples */ 264634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->sample += src_len / 2; 265634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 266634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return dst_len; 267634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 268634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 269634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* 270634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * This gets called for the bulk stream pipe. This is done in interrupt 271634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari * time, so it has to be fast, not crash, and not stall. Neat. 272634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari */ 273634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_urb_complete(struct urb *urb) 274634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 275634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = urb->context; 276634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf *fbuf; 277634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 278634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg_ratelimited(&s->udev->dev, 279634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "%s: status=%d length=%d/%d errors=%d\n", 280634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, urb->status, urb->actual_length, 281634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari urb->transfer_buffer_length, urb->error_count); 282634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 283634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari switch (urb->status) { 284634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case 0: /* success */ 285634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case -ETIMEDOUT: /* NAK */ 286634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 287634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case -ECONNRESET: /* kill */ 288634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case -ENOENT: 289634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case -ESHUTDOWN: 290634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return; 291634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari default: /* error */ 292634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_err_ratelimited(&s->udev->dev, "URB failed %d\n", 293634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari urb->status); 294634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 295634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 296634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 297634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (likely(urb->actual_length > 0)) { 298634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari void *ptr; 299634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int len; 300634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* get free framebuffer */ 301634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari fbuf = airspy_get_next_fill_buf(s); 302634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (unlikely(fbuf == NULL)) { 303634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_full++; 304634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_notice_ratelimited(&s->udev->dev, 305634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "videobuf is full, %d packets dropped\n", 306634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_full); 307634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto skip; 308634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 309634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 310634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* fill framebuffer */ 311634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ptr = vb2_plane_vaddr(&fbuf->vb, 0); 312634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari len = airspy_convert_stream(s, ptr, urb->transfer_buffer, 313634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari urb->actual_length); 314634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari vb2_set_plane_payload(&fbuf->vb, 0, len); 315634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_get_timestamp(&fbuf->vb.v4l2_buf.timestamp); 316634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari fbuf->vb.v4l2_buf.sequence = s->sequence++; 317634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE); 318634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 319634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaariskip: 320634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_submit_urb(urb, GFP_ATOMIC); 321634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 322634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 323634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_kill_urbs(struct airspy *s) 324634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 325634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i; 326634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 327634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = s->urbs_submitted - 1; i >= 0; i--) { 328634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: kill urb=%d\n", __func__, i); 329634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* stop the URB */ 330634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_kill_urb(s->urb_list[i]); 331634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 332634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urbs_submitted = 0; 333634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 334634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 335634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 336634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 337634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_submit_urbs(struct airspy *s) 338634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 339634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i, ret; 340634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 341634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = 0; i < s->urbs_initialized; i++) { 342634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: submit urb=%d\n", __func__, i); 343634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = usb_submit_urb(s->urb_list[i], GFP_ATOMIC); 344634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) { 345634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_err(&s->udev->dev, 346634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "Could not submit URB no. %d - get them all back\n", 347634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari i); 348634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_kill_urbs(s); 349634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 350634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 351634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urbs_submitted++; 352634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 353634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 354634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 355634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 356634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 357634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_free_stream_bufs(struct airspy *s) 358634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 359634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->flags & USB_STATE_URB_BUF) { 360634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari while (s->buf_num) { 361634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_num--; 362634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: free buf=%d\n", 363634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, 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 379634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, 380634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "%s: all in all I will use %u bytes for streaming\n", 381634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, MAX_BULK_BUFS * BULK_BUFFER_SIZE); 382634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 383634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (s->buf_num = 0; s->buf_num < MAX_BULK_BUFS; s->buf_num++) { 384634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_list[s->buf_num] = usb_alloc_coherent(s->udev, 385634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari BULK_BUFFER_SIZE, GFP_ATOMIC, 386634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari &s->dma_addr[s->buf_num]); 387634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (!s->buf_list[s->buf_num]) { 388634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: alloc buf=%d failed\n", 389634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, s->buf_num); 390634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_free_stream_bufs(s); 391634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -ENOMEM; 392634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 393634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 394634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: alloc buf=%d %p (dma %llu)\n", 395634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, s->buf_num, 396634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_list[s->buf_num], 397634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari (long long)s->dma_addr[s->buf_num]); 398634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->flags |= USB_STATE_URB_BUF; 399634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 400634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 401634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 402634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 403634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 404634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_free_urbs(struct airspy *s) 405634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 406634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i; 407634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 408634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_kill_urbs(s); 409634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 410634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = s->urbs_initialized - 1; i >= 0; i--) { 411634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->urb_list[i]) { 412634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: free urb=%d\n", 413634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, i); 414634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* free the URBs */ 415634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_free_urb(s->urb_list[i]); 416634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 417634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 418634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urbs_initialized = 0; 419634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 420634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 421634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 422634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 423634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_alloc_urbs(struct airspy *s) 424634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 425634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i, j; 426634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 427634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* allocate the URBs */ 428634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = 0; i < MAX_BULK_BUFS; i++) { 429634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: alloc urb=%d\n", __func__, i); 430634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC); 431634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (!s->urb_list[i]) { 432634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: failed\n", __func__); 433634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (j = 0; j < i; j++) 434634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_free_urb(s->urb_list[j]); 435634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -ENOMEM; 436634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 437634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_fill_bulk_urb(s->urb_list[i], 438634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->udev, 439634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_rcvbulkpipe(s->udev, 0x81), 440634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->buf_list[i], 441634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari BULK_BUFFER_SIZE, 442634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_urb_complete, s); 443634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 444634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; 445634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urb_list[i]->transfer_dma = s->dma_addr[i]; 446634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->urbs_initialized++; 447634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 448634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 449634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 450634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 451634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 452634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* Must be called with vb_queue_lock hold */ 453634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_cleanup_queued_bufs(struct airspy *s) 454634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 455634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned long flags = 0; 456634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 457634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s:\n", __func__); 458634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 459634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_lock_irqsave(&s->queued_bufs_lock, flags); 460634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari while (!list_empty(&s->queued_bufs)) { 461634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf *buf; 462634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf = list_entry(s->queued_bufs.next, 463634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf, list); 464634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari list_del(&buf->list); 465634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 466634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 467634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_unlock_irqrestore(&s->queued_bufs_lock, flags); 468634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 469634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 470634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* The user yanked out the cable... */ 471634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_disconnect(struct usb_interface *intf) 472634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 473634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_device *v = usb_get_intfdata(intf); 474634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = container_of(v, struct airspy, v4l2_dev); 475634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 476634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s:\n", __func__); 477634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 478634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_lock(&s->vb_queue_lock); 479634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_lock(&s->v4l2_lock); 480634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* No need to keep the urbs around after disconnection */ 481634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->udev = NULL; 482634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_device_disconnect(&s->v4l2_dev); 483634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari video_unregister_device(&s->vdev); 484634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_unlock(&s->v4l2_lock); 485634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_unlock(&s->vb_queue_lock); 486634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 487634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_device_put(&s->v4l2_dev); 488634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 489634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 490634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* Videobuf2 operations */ 491634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_queue_setup(struct vb2_queue *vq, 492634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari const struct v4l2_format *fmt, unsigned int *nbuffers, 493634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) 494634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 495634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = vb2_get_drv_priv(vq); 496634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 497634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: *nbuffers=%d\n", __func__, *nbuffers); 498634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 499634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Need at least 8 buffers */ 500634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (vq->num_buffers + *nbuffers < 8) 501634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari *nbuffers = 8 - vq->num_buffers; 502634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari *nplanes = 1; 503634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari sizes[0] = PAGE_ALIGN(BULK_BUFFER_SIZE); 504634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 505634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n", 506634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, *nbuffers, sizes[0]); 507634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 508634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 509634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 510634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_buf_queue(struct vb2_buffer *vb) 511634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 512634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = vb2_get_drv_priv(vb->vb2_queue); 513634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy_frame_buf *buf = 514634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari container_of(vb, struct airspy_frame_buf, vb); 515634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari unsigned long flags = 0; 516634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 517634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Check the device has not disconnected between prep and queuing */ 518634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (unlikely(!s->udev)) { 519634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 520634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return; 521634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 522634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 523634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_lock_irqsave(&s->queued_bufs_lock, flags); 524634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari list_add_tail(&buf->list, &s->queued_bufs); 525634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_unlock_irqrestore(&s->queued_bufs_lock, flags); 526634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 527634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 528634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_start_streaming(struct vb2_queue *vq, unsigned int count) 529634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 530634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = vb2_get_drv_priv(vq); 531634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 532634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 533634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s:\n", __func__); 534634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 535634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (!s->udev) 536634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -ENODEV; 537634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 538634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_lock(&s->v4l2_lock); 539634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 540634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari set_bit(POWER_ON, &s->flags); 541634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 542634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->sequence = 0; 543634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 544634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_alloc_stream_bufs(s); 545634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 546634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 547634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 548634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_alloc_urbs(s); 549634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 550634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 551634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 552634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_submit_urbs(s); 553634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 554634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 555634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 556634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* start hardware streaming */ 557634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_RECEIVER_MODE, 1, 0, NULL, 0); 558634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 559634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 560634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr: 561634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_unlock(&s->v4l2_lock); 562634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 563634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 564634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 565634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 566634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_stop_streaming(struct vb2_queue *vq) 567634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 568634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = vb2_get_drv_priv(vq); 569634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 570634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s:\n", __func__); 571634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 572634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_lock(&s->v4l2_lock); 573634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 574634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* stop hardware streaming */ 575d9d889d3249a6fee8ba61d0ea0e6f0a8e857c832Mauro Carvalho Chehab airspy_ctrl_msg(s, CMD_RECEIVER_MODE, 0, 0, NULL, 0); 576634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 577634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_kill_urbs(s); 578634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_free_urbs(s); 579634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_free_stream_bufs(s); 580634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 581634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari airspy_cleanup_queued_bufs(s); 582634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 583634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari clear_bit(POWER_ON, &s->flags); 584634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 585634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_unlock(&s->v4l2_lock); 586634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 587634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 588634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct vb2_ops airspy_vb2_ops = { 589634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .queue_setup = airspy_queue_setup, 590634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .buf_queue = airspy_buf_queue, 591634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .start_streaming = airspy_start_streaming, 592634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .stop_streaming = airspy_stop_streaming, 593634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .wait_prepare = vb2_ops_wait_prepare, 594634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .wait_finish = vb2_ops_wait_finish, 595634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 596634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 597634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_querycap(struct file *file, void *fh, 598634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_capability *cap) 599634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 600634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 601634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 602634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s:\n", __func__); 603634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 604634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); 605634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari strlcpy(cap->card, s->vdev.name, sizeof(cap->card)); 606634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari usb_make_path(s->udev, cap->bus_info, sizeof(cap->bus_info)); 607634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING | 608634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CAP_READWRITE | V4L2_CAP_TUNER; 609634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; 610634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 611634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 612634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 613634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 614634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_enum_fmt_sdr_cap(struct file *file, void *priv, 615634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_fmtdesc *f) 616634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 617634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 618634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 619634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, f->index); 620634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 621634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (f->index >= NUM_FORMATS) 622634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -EINVAL; 623634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 624634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari strlcpy(f->description, formats[f->index].name, sizeof(f->description)); 625634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->pixelformat = formats[f->index].pixelformat; 626634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 627634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 628634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 629634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 630634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_g_fmt_sdr_cap(struct file *file, void *priv, 631634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_format *f) 632634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 633634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 634634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 635634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__, 636634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari (char *)&s->pixelformat); 637634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 638634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); 639634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->fmt.sdr.pixelformat = s->pixelformat; 640634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 641634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 642634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 643634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 644634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_s_fmt_sdr_cap(struct file *file, void *priv, 645634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_format *f) 646634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 647634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 648634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct vb2_queue *q = &s->vb_queue; 649634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i; 650634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 651634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__, 652634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari (char *)&f->fmt.sdr.pixelformat); 653634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 654634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (vb2_is_busy(q)) 655634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -EBUSY; 656634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 657634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); 658634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = 0; i < NUM_FORMATS; i++) { 659634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { 660634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->pixelformat = f->fmt.sdr.pixelformat; 661634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 662634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 663634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 664634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 665634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->fmt.sdr.pixelformat = formats[0].pixelformat; 666634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->pixelformat = formats[0].pixelformat; 667634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 668634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 669634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 670634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 671634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_try_fmt_sdr_cap(struct file *file, void *priv, 672634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_format *f) 673634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 674634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 675634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int i; 676634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 677634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__, 678634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari (char *)&f->fmt.sdr.pixelformat); 679634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 680634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); 681634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari for (i = 0; i < NUM_FORMATS; i++) { 682634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (formats[i].pixelformat == f->fmt.sdr.pixelformat) 683634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 684634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 685634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 686634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->fmt.sdr.pixelformat = formats[0].pixelformat; 687634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 688634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 689634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 690634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 691634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_s_tuner(struct file *file, void *priv, 692634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari const struct v4l2_tuner *v) 693634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 694634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 695634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 696634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 697634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index); 698634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 699634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (v->index == 0) 700634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 701634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari else if (v->index == 1) 702634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 703634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari else 704634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 705634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 706634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 707634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 708634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 709634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) 710634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 711634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 712634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 713634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 714634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index); 715634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 716634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (v->index == 0) { 717634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari strlcpy(v->name, "AirSpy ADC", sizeof(v->name)); 718634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->type = V4L2_TUNER_ADC; 719634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; 720634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->rangelow = bands[0].rangelow; 721634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->rangehigh = bands[0].rangehigh; 722634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 723634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else if (v->index == 1) { 724634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari strlcpy(v->name, "AirSpy RF", sizeof(v->name)); 725634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->type = V4L2_TUNER_RF; 726634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; 727634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->rangelow = bands_rf[0].rangelow; 728634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v->rangehigh = bands_rf[0].rangehigh; 729634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 730634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 731634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 732634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 733634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 734634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 735634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 736634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 737634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_g_frequency(struct file *file, void *priv, 738634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct v4l2_frequency *f) 739634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 740634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 741634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret = 0; 742634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d\n", 743634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, f->tuner, f->type); 744634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 745634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (f->tuner == 0) { 746634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->type = V4L2_TUNER_ADC; 747634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->frequency = s->f_adc; 748634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 749634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else if (f->tuner == 1) { 750634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->type = V4L2_TUNER_RF; 751634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari f->frequency = s->f_rf; 752634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 753634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 754634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 755634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 756634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 757634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 758634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 759634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_s_frequency(struct file *file, void *priv, 760634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari const struct v4l2_frequency *f) 761634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 762634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = video_drvdata(file); 763634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 764634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 buf[4]; 765634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 766634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d frequency=%u\n", 767634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, f->tuner, f->type, f->frequency); 768634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 769634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (f->tuner == 0) { 770634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->f_adc = clamp_t(unsigned int, f->frequency, 771634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari bands[0].rangelow, 772634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari bands[0].rangehigh); 773634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: ADC frequency=%u Hz\n", 774634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, s->f_adc); 775634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 776634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else if (f->tuner == 1) { 777634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->f_rf = clamp_t(unsigned int, f->frequency, 778634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari bands_rf[0].rangelow, 779634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari bands_rf[0].rangehigh); 780634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: RF frequency=%u Hz\n", 781634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, 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 struct airspy *s = video_drvdata(file); 798634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 799634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d index=%d\n", 800634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, band->tuner, band->type, band->index); 801634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 802634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (band->tuner == 0) { 803634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (band->index >= ARRAY_SIZE(bands)) { 804634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 805634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 806634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari *band = bands[band->index]; 807634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 808634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 809634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else if (band->tuner == 1) { 810634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (band->index >= ARRAY_SIZE(bands_rf)) { 811634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 812634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 813634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari *band = bands_rf[band->index]; 814634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = 0; 815634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 816634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } else { 817634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 818634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 819634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 820634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 821634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 822634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 823634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic const struct v4l2_ioctl_ops airspy_ioctl_ops = { 824634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_querycap = airspy_querycap, 825634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 826634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_enum_fmt_sdr_cap = airspy_enum_fmt_sdr_cap, 827634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_g_fmt_sdr_cap = airspy_g_fmt_sdr_cap, 828634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_s_fmt_sdr_cap = airspy_s_fmt_sdr_cap, 829634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_try_fmt_sdr_cap = airspy_try_fmt_sdr_cap, 830634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 831634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_reqbufs = vb2_ioctl_reqbufs, 832634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_create_bufs = vb2_ioctl_create_bufs, 833634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 834634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_querybuf = vb2_ioctl_querybuf, 835634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_qbuf = vb2_ioctl_qbuf, 836634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_dqbuf = vb2_ioctl_dqbuf, 837634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 838634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_streamon = vb2_ioctl_streamon, 839634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_streamoff = vb2_ioctl_streamoff, 840634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 841634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_g_tuner = airspy_g_tuner, 842634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_s_tuner = airspy_s_tuner, 843634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 844634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_g_frequency = airspy_g_frequency, 845634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_s_frequency = airspy_s_frequency, 846634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_enum_freq_bands = airspy_enum_freq_bands, 847634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 848634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 849634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 850634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .vidioc_log_status = v4l2_ctrl_log_status, 851634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 852634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 853634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic const struct v4l2_file_operations airspy_fops = { 854634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .owner = THIS_MODULE, 855634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .open = v4l2_fh_open, 856634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .release = vb2_fop_release, 857634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .read = vb2_fop_read, 858634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .poll = vb2_fop_poll, 859634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .mmap = vb2_fop_mmap, 860634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .unlocked_ioctl = video_ioctl2, 861634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 862634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 863634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct video_device airspy_template = { 864634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .name = "AirSpy SDR", 865634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .release = video_device_release_empty, 866634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .fops = &airspy_fops, 867634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .ioctl_ops = &airspy_ioctl_ops, 868634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 869634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 870634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic void airspy_video_release(struct v4l2_device *v) 871634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 872634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = container_of(v, struct airspy, v4l2_dev); 873634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 874634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_handler_free(&s->hdl); 875634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_device_unregister(&s->v4l2_dev); 876634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari kfree(s); 877634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 878634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 879634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_set_lna_gain(struct airspy *s) 880634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 881634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 882634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 u8tmp; 883634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 884634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: lna auto=%d->%d val=%d->%d\n", 885634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, s->lna_gain_auto->cur.val, 886634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->lna_gain_auto->val, s->lna_gain->cur.val, 887634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->lna_gain->val); 888634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 889634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_LNA_AGC, 0, s->lna_gain_auto->val, 890634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari &u8tmp, 1); 891634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 892634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 893634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 894634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->lna_gain_auto->val == false) { 895634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_LNA_GAIN, 0, s->lna_gain->val, 896634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari &u8tmp, 1); 897634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 898634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 899634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 900634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr: 901634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 902634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: failed=%d\n", __func__, ret); 903634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 904634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 905634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 906634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 907634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_set_mixer_gain(struct airspy *s) 908634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 909634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 910634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 u8tmp; 911634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 912634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: mixer auto=%d->%d val=%d->%d\n", 913634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, s->mixer_gain_auto->cur.val, 914634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->mixer_gain_auto->val, s->mixer_gain->cur.val, 915634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->mixer_gain->val); 916634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 917634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_MIXER_AGC, 0, s->mixer_gain_auto->val, 918634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari &u8tmp, 1); 919634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 920634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 921634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 922634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->mixer_gain_auto->val == false) { 923634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_MIXER_GAIN, 0, 924634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->mixer_gain->val, &u8tmp, 1); 925634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 926634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 927634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 928634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr: 929634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 930634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: failed=%d\n", __func__, ret); 931634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 932634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 933634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 934634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 935634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_set_if_gain(struct airspy *s) 936634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 937634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 938634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 u8tmp; 939634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 940634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: val=%d->%d\n", 941634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, s->if_gain->cur.val, s->if_gain->val); 942634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 943634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_SET_VGA_GAIN, 0, s->if_gain->val, 944634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari &u8tmp, 1); 945634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 946634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err; 947634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr: 948634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) 949634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: failed=%d\n", __func__, ret); 950634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 951634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 952634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 953634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 954634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_s_ctrl(struct v4l2_ctrl *ctrl) 955634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 956634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = container_of(ctrl->handler, struct airspy, hdl); 957634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 958634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 959634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari switch (ctrl->id) { 960634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case V4L2_CID_RF_TUNER_LNA_GAIN_AUTO: 961634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case V4L2_CID_RF_TUNER_LNA_GAIN: 962634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_set_lna_gain(s); 963634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 964634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO: 965634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case V4L2_CID_RF_TUNER_MIXER_GAIN: 966634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_set_mixer_gain(s); 967634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 968634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari case V4L2_CID_RF_TUNER_IF_GAIN: 969634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_set_if_gain(s); 970634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari break; 971634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari default: 972634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_dbg(&s->udev->dev, "%s: unknown ctrl: id=%d name=%s\n", 973634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari __func__, ctrl->id, ctrl->name); 974634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = -EINVAL; 975634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 976634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 977634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 978634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 979634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 980634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic const struct v4l2_ctrl_ops airspy_ctrl_ops = { 981634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .s_ctrl = airspy_s_ctrl, 982634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 983634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 984634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic int airspy_probe(struct usb_interface *intf, 985634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari const struct usb_device_id *id) 986634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari{ 987634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct usb_device *udev = interface_to_usbdev(intf); 988634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari struct airspy *s = NULL; 989634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari int ret; 990634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari u8 u8tmp, buf[BUF_SIZE]; 991634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 992634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s = kzalloc(sizeof(struct airspy), GFP_KERNEL); 993634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s == NULL) { 994634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_err(&udev->dev, 995634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "Could not allocate memory for airspy state\n"); 996634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return -ENOMEM; 997634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 998634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 999634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_init(&s->v4l2_lock); 1000634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari mutex_init(&s->vb_queue_lock); 1001634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari spin_lock_init(&s->queued_bufs_lock); 1002634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari INIT_LIST_HEAD(&s->queued_bufs); 1003634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->udev = udev; 1004634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->f_adc = bands[0].rangelow; 1005634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->f_rf = bands_rf[0].rangelow; 1006634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->pixelformat = V4L2_SDR_FMT_RU12LE; 1007634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1008634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Detect device */ 1009634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_BOARD_ID_READ, 0, 0, &u8tmp, 1); 1010634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret == 0) 1011634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = airspy_ctrl_msg(s, CMD_VERSION_STRING_READ, 0, 0, 1012634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf, BUF_SIZE); 1013634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) { 1014634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_err(&s->udev->dev, "Could not detect board\n"); 1015634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err_free_mem; 1016634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 1017634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1018634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari buf[BUF_SIZE - 1] = '\0'; 1019634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1020634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_info(&s->udev->dev, "Board ID: %02x\n", u8tmp); 1021634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_info(&s->udev->dev, "Firmware version: %s\n", buf); 1022634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1023634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Init videobuf2 queue structure */ 1024634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; 1025634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; 1026634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.drv_priv = s; 1027634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.buf_struct_size = sizeof(struct airspy_frame_buf); 1028634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.ops = &airspy_vb2_ops; 1029634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.mem_ops = &vb2_vmalloc_memops; 1030634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1031634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = vb2_queue_init(&s->vb_queue); 1032634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) { 1033634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_err(&s->udev->dev, "Could not initialize vb2 queue\n"); 1034634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err_free_mem; 1035634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 1036634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1037634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Init video_device structure */ 1038634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vdev = airspy_template; 1039634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vdev.queue = &s->vb_queue; 1040634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vdev.queue->lock = &s->vb_queue_lock; 1041634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari video_set_drvdata(&s->vdev, s); 1042634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1043634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Register the v4l2_device structure */ 1044634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->v4l2_dev.release = airspy_video_release; 1045634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = v4l2_device_register(&intf->dev, &s->v4l2_dev); 1046634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) { 1047634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_err(&s->udev->dev, 1048634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "Failed to register v4l2-device (%d)\n", ret); 1049634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err_free_mem; 1050634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 1051634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1052634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari /* Register controls */ 1053634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_handler_init(&s->hdl, 5); 1054634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->lna_gain_auto = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops, 1055634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CID_RF_TUNER_LNA_GAIN_AUTO, 0, 1, 1, 0); 1056634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->lna_gain = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops, 1057634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CID_RF_TUNER_LNA_GAIN, 0, 14, 1, 8); 1058634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_auto_cluster(2, &s->lna_gain_auto, 0, false); 1059634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->mixer_gain_auto = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops, 1060634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO, 0, 1, 1, 0); 1061634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops, 1062634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CID_RF_TUNER_MIXER_GAIN, 0, 15, 1, 8); 1063634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_auto_cluster(2, &s->mixer_gain_auto, 0, false); 1064634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->if_gain = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops, 1065634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari V4L2_CID_RF_TUNER_IF_GAIN, 0, 15, 1, 0); 1066634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (s->hdl.error) { 1067634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = s->hdl.error; 1068634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_err(&s->udev->dev, "Could not initialize controls\n"); 1069634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err_free_controls; 1070634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 1071634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1072634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_handler_setup(&s->hdl); 1073634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1074634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->v4l2_dev.ctrl_handler = &s->hdl; 1075634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vdev.v4l2_dev = &s->v4l2_dev; 1076634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari s->vdev.lock = &s->v4l2_lock; 1077634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1078634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret = video_register_device(&s->vdev, VFL_TYPE_SDR, -1); 1079634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari if (ret) { 1080634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_err(&s->udev->dev, 1081634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari "Failed to register as video device (%d)\n", 1082634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari ret); 1083634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari goto err_unregister_v4l2_dev; 1084634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari } 1085634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari dev_info(&s->udev->dev, "Registered as %s\n", 1086634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari video_device_node_name(&s->vdev)); 1087634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1088634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return 0; 1089634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1090634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr_free_controls: 1091634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_ctrl_handler_free(&s->hdl); 1092634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr_unregister_v4l2_dev: 1093634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari v4l2_device_unregister(&s->v4l2_dev); 1094634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarierr_free_mem: 1095634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari kfree(s); 1096634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari return ret; 1097634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari} 1098634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1099634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* USB device ID list */ 1100634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct usb_device_id airspy_id_table[] = { 1101634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari { USB_DEVICE(0x1d50, 0x60a1) }, /* AirSpy */ 1102634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari { } 1103634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 1104634fe5033951b80ef4b98d8f047cb1083d29170dAntti PalosaariMODULE_DEVICE_TABLE(usb, airspy_id_table); 1105634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1106634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari/* USB subsystem interface */ 1107634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaaristatic struct usb_driver airspy_driver = { 1108634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .name = KBUILD_MODNAME, 1109634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .probe = airspy_probe, 1110634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .disconnect = airspy_disconnect, 1111634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari .id_table = airspy_id_table, 1112634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari}; 1113634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1114634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaarimodule_usb_driver(airspy_driver); 1115634fe5033951b80ef4b98d8f047cb1083d29170dAntti Palosaari 1116634fe5033951b80ef4b98d8f047cb1083d29170dAntti PalosaariMODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); 1117634fe5033951b80ef4b98d8f047cb1083d29170dAntti PalosaariMODULE_DESCRIPTION("AirSpy SDR"); 1118634fe5033951b80ef4b98d8f047cb1083d29170dAntti PalosaariMODULE_LICENSE("GPL"); 1119