diff options
Diffstat (limited to 'drivers/staging/media/msi3101/sdr-msi3101.c')
| -rw-r--r-- | drivers/staging/media/msi3101/sdr-msi3101.c | 1566 |
1 files changed, 575 insertions, 991 deletions
diff --git a/drivers/staging/media/msi3101/sdr-msi3101.c b/drivers/staging/media/msi3101/sdr-msi3101.c index 5a0400f..260d1b7 100644 --- a/drivers/staging/media/msi3101/sdr-msi3101.c +++ b/drivers/staging/media/msi3101/sdr-msi3101.c @@ -21,25 +21,10 @@ * (C) 1999-2004 Nemosoft Unv. * (C) 2004-2006 Luc Saillard (luc@saillard.org) * (C) 2011 Hans de Goede <hdegoede@redhat.com> - * - * Development tree of that driver will be on: - * http://git.linuxtv.org/anttip/media_tree.git/shortlog/refs/heads/mirics - * - * GNU Radio plugin "gr-kernel" for device usage will be on: - * http://git.linuxtv.org/anttip/gr-kernel.git - * - * TODO: - * Help is very highly welcome for these + all the others you could imagine: - * - split USB ADC interface and RF tuner to own drivers (msi2500 and msi001) - * - move controls to V4L2 API - * - use libv4l2 for stream format conversions - * - gr-kernel: switch to v4l2_mmap (current read eats a lot of cpu) - * - SDRSharp support */ #include <linux/module.h> #include <linux/slab.h> -#include <linux/gcd.h> #include <asm/div64.h> #include <media/v4l2-device.h> #include <media/v4l2-ioctl.h> @@ -47,317 +32,7 @@ #include <media/v4l2-event.h> #include <linux/usb.h> #include <media/videobuf2-vmalloc.h> - -struct msi3101_gain { - u8 tot:7; - u8 baseband:6; - bool lna:1; - bool mixer:1; -}; - -/* 60 – 120 MHz band, lna 24dB, mixer 19dB */ -static const struct msi3101_gain msi3101_gain_lut_120[] = { - { 0, 0, 0, 0}, - { 1, 1, 0, 0}, - { 2, 2, 0, 0}, - { 3, 3, 0, 0}, - { 4, 4, 0, 0}, - { 5, 5, 0, 0}, - { 6, 6, 0, 0}, - { 7, 7, 0, 0}, - { 8, 8, 0, 0}, - { 9, 9, 0, 0}, - { 10, 10, 0, 0}, - { 11, 11, 0, 0}, - { 12, 12, 0, 0}, - { 13, 13, 0, 0}, - { 14, 14, 0, 0}, - { 15, 15, 0, 0}, - { 16, 16, 0, 0}, - { 17, 17, 0, 0}, - { 18, 18, 0, 0}, - { 19, 19, 0, 0}, - { 20, 20, 0, 0}, - { 21, 21, 0, 0}, - { 22, 22, 0, 0}, - { 23, 23, 0, 0}, - { 24, 24, 0, 0}, - { 25, 25, 0, 0}, - { 26, 26, 0, 0}, - { 27, 27, 0, 0}, - { 28, 28, 0, 0}, - { 29, 5, 1, 0}, - { 30, 6, 1, 0}, - { 31, 7, 1, 0}, - { 32, 8, 1, 0}, - { 33, 9, 1, 0}, - { 34, 10, 1, 0}, - { 35, 11, 1, 0}, - { 36, 12, 1, 0}, - { 37, 13, 1, 0}, - { 38, 14, 1, 0}, - { 39, 15, 1, 0}, - { 40, 16, 1, 0}, - { 41, 17, 1, 0}, - { 42, 18, 1, 0}, - { 43, 19, 1, 0}, - { 44, 20, 1, 0}, - { 45, 21, 1, 0}, - { 46, 22, 1, 0}, - { 47, 23, 1, 0}, - { 48, 24, 1, 0}, - { 49, 25, 1, 0}, - { 50, 26, 1, 0}, - { 51, 27, 1, 0}, - { 52, 28, 1, 0}, - { 53, 29, 1, 0}, - { 54, 30, 1, 0}, - { 55, 31, 1, 0}, - { 56, 32, 1, 0}, - { 57, 33, 1, 0}, - { 58, 34, 1, 0}, - { 59, 35, 1, 0}, - { 60, 36, 1, 0}, - { 61, 37, 1, 0}, - { 62, 38, 1, 0}, - { 63, 39, 1, 0}, - { 64, 40, 1, 0}, - { 65, 41, 1, 0}, - { 66, 42, 1, 0}, - { 67, 43, 1, 0}, - { 68, 44, 1, 0}, - { 69, 45, 1, 0}, - { 70, 46, 1, 0}, - { 71, 47, 1, 0}, - { 72, 48, 1, 0}, - { 73, 49, 1, 0}, - { 74, 50, 1, 0}, - { 75, 51, 1, 0}, - { 76, 52, 1, 0}, - { 77, 53, 1, 0}, - { 78, 54, 1, 0}, - { 79, 55, 1, 0}, - { 80, 56, 1, 0}, - { 81, 57, 1, 0}, - { 82, 58, 1, 0}, - { 83, 40, 1, 1}, - { 84, 41, 1, 1}, - { 85, 42, 1, 1}, - { 86, 43, 1, 1}, - { 87, 44, 1, 1}, - { 88, 45, 1, 1}, - { 89, 46, 1, 1}, - { 90, 47, 1, 1}, - { 91, 48, 1, 1}, - { 92, 49, 1, 1}, - { 93, 50, 1, 1}, - { 94, 51, 1, 1}, - { 95, 52, 1, 1}, - { 96, 53, 1, 1}, - { 97, 54, 1, 1}, - { 98, 55, 1, 1}, - { 99, 56, 1, 1}, - {100, 57, 1, 1}, - {101, 58, 1, 1}, - {102, 59, 1, 1}, -}; - -/* 120 – 245 MHz band, lna 24dB, mixer 19dB */ -static const struct msi3101_gain msi3101_gain_lut_245[] = { - { 0, 0, 0, 0}, - { 1, 1, 0, 0}, - { 2, 2, 0, 0}, - { 3, 3, 0, 0}, - { 4, 4, 0, 0}, - { 5, 5, 0, 0}, - { 6, 6, 0, 0}, - { 7, 7, 0, 0}, - { 8, 8, 0, 0}, - { 9, 9, 0, 0}, - { 10, 10, 0, 0}, - { 11, 11, 0, 0}, - { 12, 12, 0, 0}, - { 13, 13, 0, 0}, - { 14, 14, 0, 0}, - { 15, 15, 0, 0}, - { 16, 16, 0, 0}, - { 17, 17, 0, 0}, - { 18, 18, 0, 0}, - { 19, 19, 0, 0}, - { 20, 20, 0, 0}, - { 21, 21, 0, 0}, - { 22, 22, 0, 0}, - { 23, 23, 0, 0}, - { 24, 24, 0, 0}, - { 25, 25, 0, 0}, - { 26, 26, 0, 0}, - { 27, 27, 0, 0}, - { 28, 28, 0, 0}, - { 29, 5, 1, 0}, - { 30, 6, 1, 0}, - { 31, 7, 1, 0}, - { 32, 8, 1, 0}, - { 33, 9, 1, 0}, - { 34, 10, 1, 0}, - { 35, 11, 1, 0}, - { 36, 12, 1, 0}, - { 37, 13, 1, 0}, - { 38, 14, 1, 0}, - { 39, 15, 1, 0}, - { 40, 16, 1, 0}, - { 41, 17, 1, 0}, - { 42, 18, 1, 0}, - { 43, 19, 1, 0}, - { 44, 20, 1, 0}, - { 45, 21, 1, 0}, - { 46, 22, 1, 0}, - { 47, 23, 1, 0}, - { 48, 24, 1, 0}, - { 49, 25, 1, 0}, - { 50, 26, 1, 0}, - { 51, 27, 1, 0}, - { 52, 28, 1, 0}, - { 53, 29, 1, 0}, - { 54, 30, 1, 0}, - { 55, 31, 1, 0}, - { 56, 32, 1, 0}, - { 57, 33, 1, 0}, - { 58, 34, 1, 0}, - { 59, 35, 1, 0}, - { 60, 36, 1, 0}, - { 61, 37, 1, 0}, - { 62, 38, 1, 0}, - { 63, 39, 1, 0}, - { 64, 40, 1, 0}, - { 65, 41, 1, 0}, - { 66, 42, 1, 0}, - { 67, 43, 1, 0}, - { 68, 44, 1, 0}, - { 69, 45, 1, 0}, - { 70, 46, 1, 0}, - { 71, 47, 1, 0}, - { 72, 48, 1, 0}, - { 73, 49, 1, 0}, - { 74, 50, 1, 0}, - { 75, 51, 1, 0}, - { 76, 52, 1, 0}, - { 77, 53, 1, 0}, - { 78, 54, 1, 0}, - { 79, 55, 1, 0}, - { 80, 56, 1, 0}, - { 81, 57, 1, 0}, - { 82, 58, 1, 0}, - { 83, 40, 1, 1}, - { 84, 41, 1, 1}, - { 85, 42, 1, 1}, - { 86, 43, 1, 1}, - { 87, 44, 1, 1}, - { 88, 45, 1, 1}, - { 89, 46, 1, 1}, - { 90, 47, 1, 1}, - { 91, 48, 1, 1}, - { 92, 49, 1, 1}, - { 93, 50, 1, 1}, - { 94, 51, 1, 1}, - { 95, 52, 1, 1}, - { 96, 53, 1, 1}, - { 97, 54, 1, 1}, - { 98, 55, 1, 1}, - { 99, 56, 1, 1}, - {100, 57, 1, 1}, - {101, 58, 1, 1}, - {102, 59, 1, 1}, -}; - -/* 420 – 1000 MHz band, lna 7dB, mixer 19dB */ -static const struct msi3101_gain msi3101_gain_lut_1000[] = { - { 0, 0, 0, 0}, - { 1, 1, 0, 0}, - { 2, 2, 0, 0}, - { 3, 3, 0, 0}, - { 4, 4, 0, 0}, - { 5, 5, 0, 0}, - { 6, 6, 0, 0}, - { 7, 7, 0, 0}, - { 8, 8, 0, 0}, - { 9, 9, 0, 0}, - { 10, 10, 0, 0}, - { 11, 11, 0, 0}, - { 12, 5, 1, 0}, - { 13, 6, 1, 0}, - { 14, 7, 1, 0}, - { 15, 8, 1, 0}, - { 16, 9, 1, 0}, - { 17, 10, 1, 0}, - { 18, 11, 1, 0}, - { 19, 12, 1, 0}, - { 20, 13, 1, 0}, - { 21, 14, 1, 0}, - { 22, 15, 1, 0}, - { 23, 16, 1, 0}, - { 24, 17, 1, 0}, - { 25, 18, 1, 0}, - { 26, 19, 1, 0}, - { 27, 20, 1, 0}, - { 28, 21, 1, 0}, - { 29, 22, 1, 0}, - { 30, 23, 1, 0}, - { 31, 24, 1, 0}, - { 32, 25, 1, 0}, - { 33, 26, 1, 0}, - { 34, 27, 1, 0}, - { 35, 28, 1, 0}, - { 36, 29, 1, 0}, - { 37, 30, 1, 0}, - { 38, 31, 1, 0}, - { 39, 32, 1, 0}, - { 40, 33, 1, 0}, - { 41, 34, 1, 0}, - { 42, 35, 1, 0}, - { 43, 36, 1, 0}, - { 44, 37, 1, 0}, - { 45, 38, 1, 0}, - { 46, 39, 1, 0}, - { 47, 40, 1, 0}, - { 48, 41, 1, 0}, - { 49, 42, 1, 0}, - { 50, 43, 1, 0}, - { 51, 44, 1, 0}, - { 52, 45, 1, 0}, - { 53, 46, 1, 0}, - { 54, 47, 1, 0}, - { 55, 48, 1, 0}, - { 56, 49, 1, 0}, - { 57, 50, 1, 0}, - { 58, 51, 1, 0}, - { 59, 52, 1, 0}, - { 60, 53, 1, 0}, - { 61, 54, 1, 0}, - { 62, 55, 1, 0}, - { 63, 56, 1, 0}, - { 64, 57, 1, 0}, - { 65, 58, 1, 0}, - { 66, 40, 1, 1}, - { 67, 41, 1, 1}, - { 68, 42, 1, 1}, - { 69, 43, 1, 1}, - { 70, 44, 1, 1}, - { 71, 45, 1, 1}, - { 72, 46, 1, 1}, - { 73, 47, 1, 1}, - { 74, 48, 1, 1}, - { 75, 49, 1, 1}, - { 76, 50, 1, 1}, - { 77, 51, 1, 1}, - { 78, 52, 1, 1}, - { 79, 53, 1, 1}, - { 80, 54, 1, 1}, - { 81, 55, 1, 1}, - { 82, 56, 1, 1}, - { 83, 57, 1, 1}, - { 84, 58, 1, 1}, - { 85, 59, 1, 1}, -}; +#include <linux/spi/spi.h> /* * iConfiguration 0 @@ -377,13 +52,54 @@ static const struct msi3101_gain msi3101_gain_lut_1000[] = { #define MAX_ISOC_ERRORS 20 /* TODO: These should be moved to V4L2 API */ -#define MSI3101_CID_SAMPLING_MODE ((V4L2_CID_USER_BASE | 0xf000) + 0) -#define MSI3101_CID_SAMPLING_RATE ((V4L2_CID_USER_BASE | 0xf000) + 1) -#define MSI3101_CID_SAMPLING_RESOLUTION ((V4L2_CID_USER_BASE | 0xf000) + 2) -#define MSI3101_CID_TUNER_RF ((V4L2_CID_USER_BASE | 0xf000) + 10) -#define MSI3101_CID_TUNER_BW ((V4L2_CID_USER_BASE | 0xf000) + 11) -#define MSI3101_CID_TUNER_IF ((V4L2_CID_USER_BASE | 0xf000) + 12) -#define MSI3101_CID_TUNER_GAIN ((V4L2_CID_USER_BASE | 0xf000) + 13) +#define V4L2_PIX_FMT_SDR_S8 v4l2_fourcc('D', 'S', '0', '8') /* signed 8-bit */ +#define V4L2_PIX_FMT_SDR_S12 v4l2_fourcc('D', 'S', '1', '2') /* signed 12-bit */ +#define V4L2_PIX_FMT_SDR_S14 v4l2_fourcc('D', 'S', '1', '4') /* signed 14-bit */ +#define V4L2_PIX_FMT_SDR_MSI2500_384 v4l2_fourcc('M', '3', '8', '4') /* Mirics MSi2500 format 384 */ + +static const struct v4l2_frequency_band bands[] = { + { + .tuner = 0, + .type = V4L2_TUNER_ADC, + .index = 0, + .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 1200000, + .rangehigh = 15000000, + }, +}; + +/* stream formats */ +struct msi3101_format { + char *name; + u32 pixelformat; +}; + +/* format descriptions for capture and preview */ +static struct msi3101_format formats[] = { + { + .name = "IQ U8", + .pixelformat = V4L2_SDR_FMT_CU8, + }, { + .name = "IQ U16LE", + .pixelformat = V4L2_SDR_FMT_CU16LE, +#if 0 + }, { + .name = "8-bit signed", + .pixelformat = V4L2_PIX_FMT_SDR_S8, + }, { + .name = "10+2-bit signed", + .pixelformat = V4L2_PIX_FMT_SDR_MSI2500_384, + }, { + .name = "12-bit signed", + .pixelformat = V4L2_PIX_FMT_SDR_S12, + }, { + .name = "14-bit signed", + .pixelformat = V4L2_PIX_FMT_SDR_S14, +#endif + }, +}; + +static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); /* intermediate buffers with raw data from the USB device */ struct msi3101_frame_buf { @@ -394,6 +110,8 @@ struct msi3101_frame_buf { struct msi3101_state { struct video_device vdev; struct v4l2_device v4l2_dev; + struct v4l2_subdev *v4l2_subdev; + struct spi_master *master; /* videobuf2 queue and queued buffers list */ struct vb2_queue vb_queue; @@ -407,24 +125,22 @@ struct msi3101_state { /* Pointer to our usb_device, will be NULL after unplug */ struct usb_device *udev; /* Both mutexes most be hold when setting! */ + unsigned int f_adc; + u32 pixelformat; + unsigned int isoc_errors; /* number of contiguous ISOC errors */ unsigned int vb_full; /* vb is full and packets dropped */ struct urb *urbs[MAX_ISO_BUFS]; - int (*convert_stream)(struct msi3101_state *s, u32 *dst, u8 *src, + int (*convert_stream)(struct msi3101_state *s, u8 *dst, u8 *src, unsigned int src_len); /* Controls */ - struct v4l2_ctrl_handler ctrl_handler; - struct v4l2_ctrl *ctrl_sampling_rate; - struct v4l2_ctrl *ctrl_tuner_rf; - struct v4l2_ctrl *ctrl_tuner_bw; - struct v4l2_ctrl *ctrl_tuner_if; - struct v4l2_ctrl *ctrl_tuner_gain; + struct v4l2_ctrl_handler hdl; u32 next_sample; /* for track lost packets */ u32 sample; /* for sample rate calc */ - unsigned long jiffies; + unsigned long jiffies_next; unsigned int sample_ctrl_bit[4]; }; @@ -448,98 +164,79 @@ leave: /* * +=========================================================================== - * | 00-1023 | USB packet type '384' + * | 00-1023 | USB packet type '504' * +=========================================================================== * | 00- 03 | sequence number of first sample in that USB packet * +--------------------------------------------------------------------------- * | 04- 15 | garbage * +--------------------------------------------------------------------------- - * | 16- 175 | samples - * +--------------------------------------------------------------------------- - * | 176- 179 | control bits for previous samples - * +--------------------------------------------------------------------------- - * | 180- 339 | samples - * +--------------------------------------------------------------------------- - * | 340- 343 | control bits for previous samples - * +--------------------------------------------------------------------------- - * | 344- 503 | samples - * +--------------------------------------------------------------------------- - * | 504- 507 | control bits for previous samples - * +--------------------------------------------------------------------------- - * | 508- 667 | samples - * +--------------------------------------------------------------------------- - * | 668- 671 | control bits for previous samples - * +--------------------------------------------------------------------------- - * | 672- 831 | samples - * +--------------------------------------------------------------------------- - * | 832- 835 | control bits for previous samples - * +--------------------------------------------------------------------------- - * | 836- 995 | samples - * +--------------------------------------------------------------------------- - * | 996- 999 | control bits for previous samples - * +--------------------------------------------------------------------------- - * | 1000-1023 | garbage + * | 16-1023 | samples * +--------------------------------------------------------------------------- - * - * Bytes 4 - 7 could have some meaning? - * - * Control bits for previous samples is 32-bit field, containing 16 x 2-bit - * numbers. This results one 2-bit number for 8 samples. It is likely used for - * for bit shifting sample by given bits, increasing actual sampling resolution. - * Number 2 (0b10) was never seen. - * - * 6 * 16 * 2 * 4 = 768 samples. 768 * 4 = 3072 bytes + * signed 8-bit sample + * 504 * 2 = 1008 samples */ +static int msi3101_convert_stream_504(struct msi3101_state *s, u8 *dst, + u8 *src, unsigned int src_len) +{ + int i, i_max, dst_len = 0; + u32 sample_num[3]; -/* - * Integer to 32-bit IEEE floating point representation routine is taken - * from Radeon R600 driver (drivers/gpu/drm/radeon/r600_blit_kms.c). - * - * TODO: Currently we do conversion here in Kernel, but in future that will - * be moved to the libv4l2 library as video format conversions are. - */ -#define I2F_FRAC_BITS 23 -#define I2F_MASK ((1 << I2F_FRAC_BITS) - 1) + /* There could be 1-3 1024 bytes URB frames */ + i_max = src_len / 1024; -/* - * Converts signed 8-bit integer into 32-bit IEEE floating point - * representation. - */ -static u32 msi3101_convert_sample_504(struct msi3101_state *s, u16 x) -{ - u32 msb, exponent, fraction, sign; + for (i = 0; i < i_max; i++) { + sample_num[i] = src[3] << 24 | src[2] << 16 | src[1] << 8 | src[0] << 0; + if (i == 0 && s->next_sample != sample_num[0]) { + dev_dbg_ratelimited(&s->udev->dev, + "%d samples lost, %d %08x:%08x\n", + sample_num[0] - s->next_sample, + src_len, s->next_sample, sample_num[0]); + } - /* Zero is special */ - if (!x) - return 0; + /* + * Dump all unknown 'garbage' data - maybe we will discover + * someday if there is something rational... + */ + dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]); - /* Negative / positive value */ - if (x & (1 << 7)) { - x = -x; - x &= 0x7f; /* result is 7 bit ... + sign */ - sign = 1 << 31; - } else { - sign = 0 << 31; + /* 504 x I+Q samples */ + src += 16; + memcpy(dst, src, 1008); + src += 1008; + dst += 1008; + dst_len += 1008; } - /* Get location of the most significant bit */ - msb = __fls(x); + /* calculate samping rate and output it in 10 seconds intervals */ + if ((s->jiffies_next + msecs_to_jiffies(10000)) <= jiffies) { + unsigned long jiffies_now = jiffies; + unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies_next); + unsigned int samples = sample_num[i_max - 1] - s->sample; + s->jiffies_next = jiffies_now; + s->sample = sample_num[i_max - 1]; + dev_dbg(&s->udev->dev, + "slen=%d samples=%u msecs=%lu sampling rate=%lu\n", + src_len, samples, msecs, + samples * 1000UL / msecs); + } - fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK; - exponent = (127 + msb) << I2F_FRAC_BITS; + /* next sample (sample = sample + i * 504) */ + s->next_sample = sample_num[i_max - 1] + 504; - return (fraction + exponent) | sign; + return dst_len; } -static int msi3101_convert_stream_504(struct msi3101_state *s, u32 *dst, +static int msi3101_convert_stream_504_u8(struct msi3101_state *s, u8 *dst, u8 *src, unsigned int src_len) { int i, j, i_max, dst_len = 0; - u16 sample[2]; u32 sample_num[3]; + s8 *s8src; + u8 *u8dst; /* There could be 1-3 1024 bytes URB frames */ i_max = src_len / 1024; + u8dst = (u8 *) dst; for (i = 0; i < i_max; i++) { sample_num[i] = src[3] << 24 | src[2] << 16 | src[1] << 8 | src[0] << 0; @@ -556,30 +253,28 @@ static int msi3101_convert_stream_504(struct msi3101_state *s, u32 *dst, */ dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]); + /* 504 x I+Q samples */ src += 16; - for (j = 0; j < 1008; j += 2) { - sample[0] = src[j + 0]; - sample[1] = src[j + 1]; - *dst++ = msi3101_convert_sample_504(s, sample[0]); - *dst++ = msi3101_convert_sample_504(s, sample[1]); - } - /* 504 x I+Q 32bit float samples */ - dst_len += 504 * 2 * 4; + s8src = (s8 *) src; + for (j = 0; j < 1008; j++) + *u8dst++ = *s8src++ + 128; + src += 1008; + dst += 1008; + dst_len += 1008; } /* calculate samping rate and output it in 10 seconds intervals */ - if ((s->jiffies + msecs_to_jiffies(10000)) <= jiffies) { - unsigned long jiffies_now = jiffies; - unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies); + if (unlikely(time_is_before_jiffies(s->jiffies_next))) { +#define MSECS 10000UL unsigned int samples = sample_num[i_max - 1] - s->sample; - s->jiffies = jiffies_now; + s->jiffies_next = jiffies + msecs_to_jiffies(MSECS); s->sample = sample_num[i_max - 1]; dev_dbg(&s->udev->dev, "slen=%d samples=%u msecs=%lu sampling rate=%lu\n", - src_len, samples, msecs, - samples * 1000UL / msecs); + src_len, samples, MSECS, + samples * 1000UL / MSECS); } /* next sample (sample = sample + i * 504) */ @@ -589,48 +284,53 @@ static int msi3101_convert_stream_504(struct msi3101_state *s, u32 *dst, } /* - * Converts signed ~10+2-bit integer into 32-bit IEEE floating point - * representation. + * +=========================================================================== + * | 00-1023 | USB packet type '384' + * +=========================================================================== + * | 00- 03 | sequence number of first sample in that USB packet + * +--------------------------------------------------------------------------- + * | 04- 15 | garbage + * +--------------------------------------------------------------------------- + * | 16- 175 | samples + * +--------------------------------------------------------------------------- + * | 176- 179 | control bits for previous samples + * +--------------------------------------------------------------------------- + * | 180- 339 | samples + * +--------------------------------------------------------------------------- + * | 340- 343 | control bits for previous samples + * +--------------------------------------------------------------------------- + * | 344- 503 | samples + * +--------------------------------------------------------------------------- + * | 504- 507 | control bits for previous samples + * +--------------------------------------------------------------------------- + * | 508- 667 | samples + * +--------------------------------------------------------------------------- + * | 668- 671 | control bits for previous samples + * +--------------------------------------------------------------------------- + * | 672- 831 | samples + * +--------------------------------------------------------------------------- + * | 832- 835 | control bits for previous samples + * +--------------------------------------------------------------------------- + * | 836- 995 | samples + * +--------------------------------------------------------------------------- + * | 996- 999 | control bits for previous samples + * +--------------------------------------------------------------------------- + * | 1000-1023 | garbage + * +--------------------------------------------------------------------------- + * + * Bytes 4 - 7 could have some meaning? + * + * Control bits for previous samples is 32-bit field, containing 16 x 2-bit + * numbers. This results one 2-bit number for 8 samples. It is likely used for + * for bit shifting sample by given bits, increasing actual sampling resolution. + * Number 2 (0b10) was never seen. + * + * 6 * 16 * 2 * 4 = 768 samples. 768 * 4 = 3072 bytes */ -static u32 msi3101_convert_sample_384(struct msi3101_state *s, u16 x, int shift) -{ - u32 msb, exponent, fraction, sign; - s->sample_ctrl_bit[shift]++; - - /* Zero is special */ - if (!x) - return 0; - - if (shift == 3) - shift = 2; - - /* Convert 10-bit two's complement to 12-bit */ - if (x & (1 << 9)) { - x |= ~0U << 10; /* set all the rest bits to one */ - x <<= shift; - x = -x; - x &= 0x7ff; /* result is 11 bit ... + sign */ - sign = 1 << 31; - } else { - x <<= shift; - sign = 0 << 31; - } - - /* Get location of the most significant bit */ - msb = __fls(x); - - fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK; - exponent = (127 + msb) << I2F_FRAC_BITS; - - return (fraction + exponent) | sign; -} - -static int msi3101_convert_stream_384(struct msi3101_state *s, u32 *dst, +static int msi3101_convert_stream_384(struct msi3101_state *s, u8 *dst, u8 *src, unsigned int src_len) { - int i, j, k, l, i_max, dst_len = 0; - u16 sample[4]; - u32 bits; + int i, i_max, dst_len = 0; u32 sample_num[3]; /* There could be 1-3 1024 bytes URB frames */ @@ -651,38 +351,20 @@ static int msi3101_convert_stream_384(struct msi3101_state *s, u32 *dst, dev_dbg_ratelimited(&s->udev->dev, "%*ph %*ph\n", 12, &src[4], 24, &src[1000]); + /* 384 x I+Q samples */ src += 16; - for (j = 0; j < 6; j++) { - bits = src[160 + 3] << 24 | src[160 + 2] << 16 | src[160 + 1] << 8 | src[160 + 0] << 0; - for (k = 0; k < 16; k++) { - for (l = 0; l < 10; l += 5) { - sample[0] = (src[l + 0] & 0xff) >> 0 | (src[l + 1] & 0x03) << 8; - sample[1] = (src[l + 1] & 0xfc) >> 2 | (src[l + 2] & 0x0f) << 6; - sample[2] = (src[l + 2] & 0xf0) >> 4 | (src[l + 3] & 0x3f) << 4; - sample[3] = (src[l + 3] & 0xc0) >> 6 | (src[l + 4] & 0xff) << 2; - - *dst++ = msi3101_convert_sample_384(s, sample[0], (bits >> (2 * k)) & 0x3); - *dst++ = msi3101_convert_sample_384(s, sample[1], (bits >> (2 * k)) & 0x3); - *dst++ = msi3101_convert_sample_384(s, sample[2], (bits >> (2 * k)) & 0x3); - *dst++ = msi3101_convert_sample_384(s, sample[3], (bits >> (2 * k)) & 0x3); - } - src += 10; - } - dev_dbg_ratelimited(&s->udev->dev, - "sample control bits %08x\n", bits); - src += 4; - } - /* 384 x I+Q 32bit float samples */ - dst_len += 384 * 2 * 4; - src += 24; + memcpy(dst, src, 984); + src += 984 + 24; + dst += 984; + dst_len += 984; } /* calculate samping rate and output it in 10 seconds intervals */ - if ((s->jiffies + msecs_to_jiffies(10000)) <= jiffies) { + if ((s->jiffies_next + msecs_to_jiffies(10000)) <= jiffies) { unsigned long jiffies_now = jiffies; - unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies); + unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies_next); unsigned int samples = sample_num[i_max - 1] - s->sample; - s->jiffies = jiffies_now; + s->jiffies_next = jiffies_now; s->sample = sample_num[i_max - 1]; dev_dbg(&s->udev->dev, "slen=%d samples=%u msecs=%lu sampling rate=%lu bits=%d.%d.%d.%d\n", @@ -699,40 +381,21 @@ static int msi3101_convert_stream_384(struct msi3101_state *s, u32 *dst, } /* - * Converts signed 12-bit integer into 32-bit IEEE floating point - * representation. + * +=========================================================================== + * | 00-1023 | USB packet type '336' + * +=========================================================================== + * | 00- 03 | sequence number of first sample in that USB packet + * +--------------------------------------------------------------------------- + * | 04- 15 | garbage + * +--------------------------------------------------------------------------- + * | 16-1023 | samples + * +--------------------------------------------------------------------------- + * signed 12-bit sample */ -static u32 msi3101_convert_sample_336(struct msi3101_state *s, u16 x) -{ - u32 msb, exponent, fraction, sign; - - /* Zero is special */ - if (!x) - return 0; - - /* Negative / positive value */ - if (x & (1 << 11)) { - x = -x; - x &= 0x7ff; /* result is 11 bit ... + sign */ - sign = 1 << 31; - } else { - sign = 0 << 31; - } - - /* Get location of the most significant bit */ - msb = __fls(x); - - fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK; - exponent = (127 + msb) << I2F_FRAC_BITS; - - return (fraction + exponent) | sign; -} - -static int msi3101_convert_stream_336(struct msi3101_state *s, u32 *dst, +static int msi3101_convert_stream_336(struct msi3101_state *s, u8 *dst, u8 *src, unsigned int src_len) { - int i, j, i_max, dst_len = 0; - u16 sample[2]; + int i, i_max, dst_len = 0; u32 sample_num[3]; /* There could be 1-3 1024 bytes URB frames */ @@ -753,25 +416,20 @@ static int msi3101_convert_stream_336(struct msi3101_state *s, u32 *dst, */ dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]); + /* 336 x I+Q samples */ src += 16; - for (j = 0; j < 1008; j += 3) { - sample[0] = (src[j + 0] & 0xff) >> 0 | (src[j + 1] & 0x0f) << 8; - sample[1] = (src[j + 1] & 0xf0) >> 4 | (src[j + 2] & 0xff) << 4; - - *dst++ = msi3101_convert_sample_336(s, sample[0]); - *dst++ = msi3101_convert_sample_336(s, sample[1]); - } - /* 336 x I+Q 32bit float samples */ - dst_len += 336 * 2 * 4; + memcpy(dst, src, 1008); src += 1008; + dst += 1008; + dst_len += 1008; } /* calculate samping rate and output it in 10 seconds intervals */ - if ((s->jiffies + msecs_to_jiffies(10000)) <= jiffies) { + if ((s->jiffies_next + msecs_to_jiffies(10000)) <= jiffies) { unsigned long jiffies_now = jiffies; - unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies); + unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies_next); unsigned int samples = sample_num[i_max - 1] - s->sample; - s->jiffies = jiffies_now; + s->jiffies_next = jiffies_now; s->sample = sample_num[i_max - 1]; dev_dbg(&s->udev->dev, "slen=%d samples=%u msecs=%lu sampling rate=%lu\n", @@ -786,41 +444,75 @@ static int msi3101_convert_stream_336(struct msi3101_state *s, u32 *dst, } /* - * Converts signed 14-bit integer into 32-bit IEEE floating point - * representation. + * +=========================================================================== + * | 00-1023 | USB packet type '252' + * +=========================================================================== + * | 00- 03 | sequence number of first sample in that USB packet + * +--------------------------------------------------------------------------- + * | 04- 15 | garbage + * +--------------------------------------------------------------------------- + * | 16-1023 | samples + * +--------------------------------------------------------------------------- + * signed 14-bit sample */ -static u32 msi3101_convert_sample_252(struct msi3101_state *s, u16 x) +static int msi3101_convert_stream_252(struct msi3101_state *s, u8 *dst, + u8 *src, unsigned int src_len) { - u32 msb, exponent, fraction, sign; + int i, i_max, dst_len = 0; + u32 sample_num[3]; - /* Zero is special */ - if (!x) - return 0; + /* There could be 1-3 1024 bytes URB frames */ + i_max = src_len / 1024; - /* Negative / positive value */ - if (x & (1 << 13)) { - x = -x; - x &= 0x1fff; /* result is 13 bit ... + sign */ - sign = 1 << 31; - } else { - sign = 0 << 31; + for (i = 0; i < i_max; i++) { + sample_num[i] = src[3] << 24 | src[2] << 16 | src[1] << 8 | src[0] << 0; + if (i == 0 && s->next_sample != sample_num[0]) { + dev_dbg_ratelimited(&s->udev->dev, + "%d samples lost, %d %08x:%08x\n", + sample_num[0] - s->next_sample, + src_len, s->next_sample, sample_num[0]); + } + + /* + * Dump all unknown 'garbage' data - maybe we will discover + * someday if there is something rational... + */ + dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]); + + /* 252 x I+Q samples */ + src += 16; + memcpy(dst, src, 1008); + src += 1008; + dst += 1008; + dst_len += 1008; } - /* Get location of the most significant bit */ - msb = __fls(x); + /* calculate samping rate and output it in 10 seconds intervals */ + if ((s->jiffies_next + msecs_to_jiffies(10000)) <= jiffies) { + unsigned long jiffies_now = jiffies; + unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies_next); + unsigned int samples = sample_num[i_max - 1] - s->sample; + s->jiffies_next = jiffies_now; + s->sample = sample_num[i_max - 1]; + dev_dbg(&s->udev->dev, + "slen=%d samples=%u msecs=%lu sampling rate=%lu\n", + src_len, samples, msecs, + samples * 1000UL / msecs); + } - fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK; - exponent = (127 + msb) << I2F_FRAC_BITS; + /* next sample (sample = sample + i * 252) */ + s->next_sample = sample_num[i_max - 1] + 252; - return (fraction + exponent) | sign; + return dst_len; } -static int msi3101_convert_stream_252(struct msi3101_state *s, u32 *dst, +static int msi3101_convert_stream_252_u16(struct msi3101_state *s, u8 *dst, u8 *src, unsigned int src_len) { int i, j, i_max, dst_len = 0; - u16 sample[2]; u32 sample_num[3]; + u16 *u16dst = (u16 *) dst; + struct {signed int x:14;} se; /* There could be 1-3 1024 bytes URB frames */ i_max = src_len / 1024; @@ -840,30 +532,44 @@ static int msi3101_convert_stream_252(struct msi3101_state *s, u32 *dst, */ dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]); + /* 252 x I+Q samples */ src += 16; + for (j = 0; j < 1008; j += 4) { - sample[0] = src[j + 0] >> 0 | src[j + 1] << 8; - sample[1] = src[j + 2] >> 0 | src[j + 3] << 8; + unsigned int usample[2]; + int ssample[2]; + + usample[0] = src[j + 0] >> 0 | src[j + 1] << 8; + usample[1] = src[j + 2] >> 0 | src[j + 3] << 8; - *dst++ = msi3101_convert_sample_252(s, sample[0]); - *dst++ = msi3101_convert_sample_252(s, sample[1]); + /* sign extension from 14-bit to signed int */ + ssample[0] = se.x = usample[0]; + ssample[1] = se.x = usample[1]; + + /* from signed to unsigned */ + usample[0] = ssample[0] + 8192; + usample[1] = ssample[1] + 8192; + + /* from 14-bit to 16-bit */ + *u16dst++ = (usample[0] << 2) | (usample[0] >> 12); + *u16dst++ = (usample[1] << 2) | (usample[1] >> 12); } - /* 252 x I+Q 32bit float samples */ - dst_len += 252 * 2 * 4; + src += 1008; + dst += 1008; + dst_len += 1008; } /* calculate samping rate and output it in 10 seconds intervals */ - if ((s->jiffies + msecs_to_jiffies(10000)) <= jiffies) { - unsigned long jiffies_now = jiffies; - unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies); + if (unlikely(time_is_before_jiffies(s->jiffies_next))) { +#define MSECS 10000UL unsigned int samples = sample_num[i_max - 1] - s->sample; - s->jiffies = jiffies_now; + s->jiffies_next = jiffies + msecs_to_jiffies(MSECS); s->sample = sample_num[i_max - 1]; dev_dbg(&s->udev->dev, "slen=%d samples=%u msecs=%lu sampling rate=%lu\n", - src_len, samples, msecs, - samples * 1000UL / msecs); + src_len, samples, MSECS, + samples * 1000UL / MSECS); } /* next sample (sample = sample + i * 252) */ @@ -883,14 +589,14 @@ static void msi3101_isoc_handler(struct urb *urb) unsigned char *iso_buf = NULL; struct msi3101_frame_buf *fbuf; - if (urb->status == -ENOENT || urb->status == -ECONNRESET || - urb->status == -ESHUTDOWN) { + if (unlikely(urb->status == -ENOENT || urb->status == -ECONNRESET || + urb->status == -ESHUTDOWN)) { dev_dbg(&s->udev->dev, "URB (%p) unlinked %ssynchronuously\n", urb, urb->status == -ENOENT ? "" : "a"); return; } - if (urb->status != 0) { + if (unlikely(urb->status != 0)) { dev_dbg(&s->udev->dev, "msi3101_isoc_handler() called with status %d\n", urb->status); @@ -910,28 +616,28 @@ static void msi3101_isoc_handler(struct urb *urb) /* Check frame error */ fstatus = urb->iso_frame_desc[i].status; - if (fstatus) { + if (unlikely(fstatus)) { dev_dbg_ratelimited(&s->udev->dev, "frame=%d/%d has error %d skipping\n", i, urb->number_of_packets, fstatus); - goto skip; + continue; } /* Check if that frame contains data */ flen = urb->iso_frame_desc[i].actual_length; - if (flen == 0) - goto skip; + if (unlikely(flen == 0)) + continue; iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset; /* Get free framebuffer */ fbuf = msi3101_get_next_fill_buf(s); - if (fbuf == NULL) { + if (unlikely(fbuf == NULL)) { s->vb_full++; dev_dbg_ratelimited(&s->udev->dev, "videobuf is full, %d packets dropped\n", s->vb_full); - goto skip; + continue; } /* fill framebuffer */ @@ -939,13 +645,11 @@ static void msi3101_isoc_handler(struct urb *urb) flen = s->convert_stream(s, ptr, iso_buf, flen); vb2_set_plane_payload(&fbuf->vb, 0, flen); vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE); -skip: - ; } handler_end: i = usb_submit_urb(urb, GFP_ATOMIC); - if (i != 0) + if (unlikely(i != 0)) dev_dbg(&s->udev->dev, "Error (%d) re-submitting urb in msi3101_isoc_handler\n", i); @@ -1008,7 +712,7 @@ static int msi3101_isoc_init(struct msi3101_state *s) udev = s->udev; ret = usb_set_interface(s->udev, 0, 1); - if (ret < 0) + if (ret) return ret; /* Allocate and init Isochronuous urbs */ @@ -1094,9 +798,9 @@ static void msi3101_disconnect(struct usb_interface *intf) mutex_lock(&s->v4l2_lock); /* No need to keep the urbs around after disconnection */ s->udev = NULL; - v4l2_device_disconnect(&s->v4l2_dev); video_unregister_device(&s->vdev); + spi_unregister_master(s->master); mutex_unlock(&s->v4l2_lock); mutex_unlock(&s->vb_queue_lock); @@ -1112,14 +816,12 @@ static int msi3101_querycap(struct file *file, void *fh, strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); strlcpy(cap->card, s->vdev.name, sizeof(cap->card)); usb_make_path(s->udev, cap->bus_info, sizeof(cap->bus_info)); - cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | - V4L2_CAP_READWRITE; - cap->device_caps = V4L2_CAP_TUNER; + cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING | + V4L2_CAP_READWRITE | V4L2_CAP_TUNER; cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; return 0; } - /* Videobuf2 operations */ static int msi3101_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, unsigned int *nbuffers, @@ -1129,31 +831,20 @@ static int msi3101_queue_setup(struct vb2_queue *vq, dev_dbg(&s->udev->dev, "%s: *nbuffers=%d\n", __func__, *nbuffers); /* Absolute min and max number of buffers available for mmap() */ - *nbuffers = 32; + *nbuffers = clamp_t(unsigned int, *nbuffers, 8, 32); *nplanes = 1; /* * 3, wMaxPacketSize 3x 1024 bytes * 504, max IQ sample pairs per 1024 frame * 2, two samples, I and Q - * 4, 32-bit float + * 2, 16-bit is enough for single sample */ - sizes[0] = PAGE_ALIGN(3 * 504 * 2 * 4); /* = 12096 */ + sizes[0] = PAGE_ALIGN(3 * 504 * 2 * 2); dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n", __func__, *nbuffers, sizes[0]); return 0; } -static int msi3101_buf_prepare(struct vb2_buffer *vb) -{ - struct msi3101_state *s = vb2_get_drv_priv(vb->vb2_queue); - - /* Don't allow queing new buffers after device disconnection */ - if (!s->udev) - return -ENODEV; - - return 0; -} - static void msi3101_buf_queue(struct vb2_buffer *vb) { struct msi3101_state *s = vb2_get_drv_priv(vb->vb2_queue); @@ -1162,7 +853,7 @@ static void msi3101_buf_queue(struct vb2_buffer *vb) unsigned long flags = 0; /* Check the device has not disconnected between prep and queuing */ - if (!s->udev) { + if (unlikely(!s->udev)) { vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); return; } @@ -1209,41 +900,63 @@ static int msi3101_ctrl_msg(struct msi3101_state *s, u8 cmd, u32 data) return ret; }; -static int msi3101_tuner_write(struct msi3101_state *s, u32 data) -{ - return msi3101_ctrl_msg(s, CMD_WREG, data << 8 | 0x09); -}; - #define F_REF 24000000 #define DIV_R_IN 2 static int msi3101_set_usb_adc(struct msi3101_state *s) { int ret, div_n, div_m, div_r_out, f_sr, f_vco, fract; u32 reg3, reg4, reg7; + struct v4l2_ctrl *bandwidth_auto; + struct v4l2_ctrl *bandwidth; - f_sr = s->ctrl_sampling_rate->val64; + f_sr = s->f_adc; + + /* set tuner, subdev, filters according to sampling rate */ + bandwidth_auto = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO); + bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH); + if (v4l2_ctrl_g_ctrl(bandwidth_auto)) { + bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH); + v4l2_ctrl_s_ctrl(bandwidth, s->f_adc); + } /* select stream format */ - if (f_sr < 6000000) { - s->convert_stream = msi3101_convert_stream_252; + switch (s->pixelformat) { + case V4L2_SDR_FMT_CU8: + s->convert_stream = msi3101_convert_stream_504_u8; + reg7 = 0x000c9407; + break; + case V4L2_SDR_FMT_CU16LE: + s->convert_stream = msi3101_convert_stream_252_u16; reg7 = 0x00009407; - } else if (f_sr < 8000000) { - s->convert_stream = msi3101_convert_stream_336; - reg7 = 0x00008507; - } else if (f_sr < 9000000) { + break; + case V4L2_PIX_FMT_SDR_S8: + s->convert_stream = msi3101_convert_stream_504; + reg7 = 0x000c9407; + break; + case V4L2_PIX_FMT_SDR_MSI2500_384: s->convert_stream = msi3101_convert_stream_384; reg7 = 0x0000a507; - } else { - s->convert_stream = msi3101_convert_stream_504; + break; + case V4L2_PIX_FMT_SDR_S12: + s->convert_stream = msi3101_convert_stream_336; + reg7 = 0x00008507; + break; + case V4L2_PIX_FMT_SDR_S14: + s->convert_stream = msi3101_convert_stream_252; + reg7 = 0x00009407; + break; + default: + s->convert_stream = msi3101_convert_stream_504_u8; reg7 = 0x000c9407; + break; } /* * Synthesizer config is just a educated guess... * * [7:0] 0x03, register address - * [8] 1, always - * [9] ? + * [8] 1, power control + * [9] ?, power control * [12:10] output divider * [13] 0 ? * [14] 0 ? @@ -1334,224 +1047,6 @@ err: return ret; }; -static int msi3101_set_tuner(struct msi3101_state *s) -{ - int ret, i, len; - unsigned int n, m, thresh, frac, vco_step, tmp, f_if1; - u32 reg; - u64 f_vco, tmp64; - u8 mode, filter_mode, lo_div; - const struct msi3101_gain *gain_lut; - static const struct { - u32 rf; - u8 mode; - u8 lo_div; - } band_lut[] = { - { 50000000, 0xe1, 16}, /* AM_MODE2, antenna 2 */ - {108000000, 0x42, 32}, /* VHF_MODE */ - {330000000, 0x44, 16}, /* B3_MODE */ - {960000000, 0x48, 4}, /* B45_MODE */ - { ~0U, 0x50, 2}, /* BL_MODE */ - }; - static const struct { - u32 freq; - u8 filter_mode; - } if_freq_lut[] = { - { 0, 0x03}, /* Zero IF */ - { 450000, 0x02}, /* 450 kHz IF */ - {1620000, 0x01}, /* 1.62 MHz IF */ - {2048000, 0x00}, /* 2.048 MHz IF */ - }; - static const struct { - u32 freq; - u8 val; - } bandwidth_lut[] = { - { 200000, 0x00}, /* 200 kHz */ - { 300000, 0x01}, /* 300 kHz */ - { 600000, 0x02}, /* 600 kHz */ - {1536000, 0x03}, /* 1.536 MHz */ - {5000000, 0x04}, /* 5 MHz */ - {6000000, 0x05}, /* 6 MHz */ - {7000000, 0x06}, /* 7 MHz */ - {8000000, 0x07}, /* 8 MHz */ - }; - - unsigned int f_rf = s->ctrl_tuner_rf->val64; - - /* - * bandwidth (Hz) - * 200000, 300000, 600000, 1536000, 5000000, 6000000, 7000000, 8000000 - */ - unsigned int bandwidth = s->ctrl_tuner_bw->val; - - /* - * intermediate frequency (Hz) - * 0, 450000, 1620000, 2048000 - */ - unsigned int f_if = s->ctrl_tuner_if->val; - - /* - * gain reduction (dB) - * 0 - 102 below 420 MHz - * 0 - 85 above 420 MHz - */ - int gain = s->ctrl_tuner_gain->val; - - dev_dbg(&s->udev->dev, - "%s: f_rf=%d bandwidth=%d f_if=%d gain=%d\n", - __func__, f_rf, bandwidth, f_if, gain); - - ret = -EINVAL; - - for (i = 0; i < ARRAY_SIZE(band_lut); i++) { - if (f_rf <= band_lut[i].rf) { - mode = band_lut[i].mode; - lo_div = band_lut[i].lo_div; - break; - } - } - - if (i == ARRAY_SIZE(band_lut)) - goto err; - - /* AM_MODE is upconverted */ - if ((mode >> 0) & 0x1) - f_if1 = 5 * F_REF; - else - f_if1 = 0; - - for (i = 0; i < ARRAY_SIZE(if_freq_lut); i++) { - if (f_if == if_freq_lut[i].freq) { - filter_mode = if_freq_lut[i].filter_mode; - break; - } - } - - if (i == ARRAY_SIZE(if_freq_lut)) - goto err; - - for (i = 0; i < ARRAY_SIZE(bandwidth_lut); i++) { - if (bandwidth == bandwidth_lut[i].freq) { - bandwidth = bandwidth_lut[i].val; - break; - } - } - - if (i == ARRAY_SIZE(bandwidth_lut)) - goto err; - -#define F_OUT_STEP 1 -#define R_REF 4 - f_vco = (f_rf + f_if + f_if1) * lo_div; - - tmp64 = f_vco; - m = do_div(tmp64, F_REF * R_REF); - n = (unsigned int) tmp64; - - vco_step = F_OUT_STEP * lo_div; - thresh = (F_REF * R_REF) / vco_step; - frac = 1ul * thresh * m / (F_REF * R_REF); - - /* Find out greatest common divisor and divide to smaller. */ - tmp = gcd(thresh, frac); - thresh /= tmp; - frac /= tmp; - - /* Force divide to reg max. Resolution will be reduced. */ - tmp = DIV_ROUND_UP(thresh, 4095); - thresh = DIV_ROUND_CLOSEST(thresh, tmp); - frac = DIV_ROUND_CLOSEST(frac, tmp); - - /* calc real RF set */ - tmp = 1ul * F_REF * R_REF * n; - tmp += 1ul * F_REF * R_REF * frac / thresh; - tmp /= lo_div; - - dev_dbg(&s->udev->dev, - "%s: rf=%u:%u n=%d thresh=%d frac=%d\n", - __func__, f_rf, tmp, n, thresh, frac); - - ret = msi3101_tuner_write(s, 0x00000e); - if (ret) - goto err; - - ret = msi3101_tuner_write(s, 0x000003); - if (ret) - goto err; - - reg = 0 << 0; - reg |= mode << 4; - reg |= filter_mode << 12; - reg |= bandwidth << 14; - reg |= 0x02 << 17; - reg |= 0x00 << 20; - ret = msi3101_tuner_write(s, reg); - if (ret) - goto err; - - reg = 5 << 0; - reg |= thresh << 4; - reg |= 1 << 19; - reg |= 1 << 21; - ret = msi3101_tuner_write(s, reg); - if (ret) - goto err; - - reg = 2 << 0; - reg |= frac << 4; - reg |= n << 16; - ret = msi3101_tuner_write(s, reg); - if (ret) - goto err; - - if (f_rf < 120000000) { - gain_lut = msi3101_gain_lut_120; - len = ARRAY_SIZE(msi3101_gain_lut_120); - } else if (f_rf < 245000000) { - gain_lut = msi3101_gain_lut_245; - len = ARRAY_SIZE(msi3101_gain_lut_120); - } else { - gain_lut = msi3101_gain_lut_1000; - len = ARRAY_SIZE(msi3101_gain_lut_1000); - } - - for (i = 0; i < len; i++) { - if (gain_lut[i].tot >= gain) - break; - } - - if (i == len) - goto err; - - dev_dbg(&s->udev->dev, - "%s: gain tot=%d baseband=%d lna=%d mixer=%d\n", - __func__, gain_lut[i].tot, gain_lut[i].baseband, - gain_lut[i].lna, gain_lut[i].mixer); - - reg = 1 << 0; - reg |= gain_lut[i].baseband << 4; - reg |= 0 << 10; - reg |= gain_lut[i].mixer << 12; - reg |= gain_lut[i].lna << 13; - reg |= 4 << 14; - reg |= 0 << 17; - ret = msi3101_tuner_write(s, reg); - if (ret) - goto err; - - reg = 6 << 0; - reg |= 63 << 4; - reg |= 4095 << 10; - ret = msi3101_tuner_write(s, reg); - if (ret) - goto err; - - return 0; -err: - dev_dbg(&s->udev->dev, "%s: failed %d\n", __func__, ret); - return ret; -}; - static int msi3101_start_streaming(struct vb2_queue *vq, unsigned int count) { struct msi3101_state *s = vb2_get_drv_priv(vq); @@ -1564,6 +1059,9 @@ static int msi3101_start_streaming(struct vb2_queue *vq, unsigned int count) if (mutex_lock_interruptible(&s->v4l2_lock)) return -ERESTARTSYS; + /* wake-up tuner */ + v4l2_subdev_call(s->v4l2_subdev, core, s_power, 1); + ret = msi3101_set_usb_adc(s); ret = msi3101_isoc_init(s); @@ -1594,6 +1092,12 @@ static int msi3101_stop_streaming(struct vb2_queue *vq) msleep(20); msi3101_ctrl_msg(s, CMD_STOP_STREAMING, 0); + /* sleep USB IF / ADC */ + msi3101_ctrl_msg(s, CMD_WREG, 0x01000003); + + /* sleep tuner */ + v4l2_subdev_call(s->v4l2_subdev, core, s_power, 0); + mutex_unlock(&s->v4l2_lock); return 0; @@ -1601,7 +1105,6 @@ static int msi3101_stop_streaming(struct vb2_queue *vq) static struct vb2_ops msi3101_vb2_ops = { .queue_setup = msi3101_queue_setup, - .buf_prepare = msi3101_buf_prepare, .buf_queue = msi3101_buf_queue, .start_streaming = msi3101_start_streaming, .stop_streaming = msi3101_stop_streaming, @@ -1609,66 +1112,195 @@ static struct vb2_ops msi3101_vb2_ops = { .wait_finish = vb2_ops_wait_finish, }; -static int msi3101_enum_input(struct file *file, void *fh, struct v4l2_input *i) +static int msi3101_enum_fmt_sdr_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) { - if (i->index != 0) + struct msi3101_state *s = video_drvdata(file); + dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, f->index); + + if (f->index >= NUM_FORMATS) return -EINVAL; - strlcpy(i->name, "SDR data", sizeof(i->name)); - i->type = V4L2_INPUT_TYPE_CAMERA; + strlcpy(f->description, formats[f->index].name, sizeof(f->description)); + f->pixelformat = formats[f->index].pixelformat; + + return 0; +} + +static int msi3101_g_fmt_sdr_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct msi3101_state *s = video_drvdata(file); + dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__, + (char *)&s->pixelformat); + + memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); + f->fmt.sdr.pixelformat = s->pixelformat; return 0; } -static int msi3101_g_input(struct file *file, void *fh, unsigned int *i) +static int msi3101_s_fmt_sdr_cap(struct file *file, void *priv, + struct v4l2_format *f) { - *i = 0; + struct msi3101_state *s = video_drvdata(file); + struct vb2_queue *q = &s->vb_queue; + int i; + dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__, + (char *)&f->fmt.sdr.pixelformat); + + if (vb2_is_busy(q)) + return -EBUSY; + + memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); + for (i = 0; i < NUM_FORMATS; i++) { + if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { + s->pixelformat = f->fmt.sdr.pixelformat; + return 0; + } + } + + f->fmt.sdr.pixelformat = formats[0].pixelformat; + s->pixelformat = formats[0].pixelformat; return 0; } -static int msi3101_s_input(struct file *file, void *fh, unsigned int i) +static int msi3101_try_fmt_sdr_cap(struct file *file, void *priv, + struct v4l2_format *f) { - return i ? -EINVAL : 0; + struct msi3101_state *s = video_drvdata(file); + int i; + dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__, + (char *)&f->fmt.sdr.pixelformat); + + memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); + for (i = 0; i < NUM_FORMATS; i++) { + if (formats[i].pixelformat == f->fmt.sdr.pixelformat) + return 0; + } + + f->fmt.sdr.pixelformat = formats[0].pixelformat; + + return 0; } -static int vidioc_s_tuner(struct file *file, void *priv, +static int msi3101_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *v) { struct msi3101_state *s = video_drvdata(file); - dev_dbg(&s->udev->dev, "%s:\n", __func__); + int ret; + dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index); - return 0; + if (v->index == 0) + ret = 0; + else if (v->index == 1) + ret = v4l2_subdev_call(s->v4l2_subdev, tuner, s_tuner, v); + else + ret = -EINVAL; + + return ret; } -static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) +static int msi3101_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { struct msi3101_state *s = video_drvdata(file); - dev_dbg(&s->udev->dev, "%s:\n", __func__); + int ret; + dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index); + + if (v->index == 0) { + strlcpy(v->name, "Mirics MSi2500", sizeof(v->name)); + v->type = V4L2_TUNER_ADC; + v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; + v->rangelow = 1200000; + v->rangehigh = 15000000; + ret = 0; + } else if (v->index == 1) { + ret = v4l2_subdev_call(s->v4l2_subdev, tuner, g_tuner, v); + } else { + ret = -EINVAL; + } - strcpy(v->name, "SDR RX"); - v->capability = V4L2_TUNER_CAP_LOW; + return ret; +} - return 0; +static int msi3101_g_frequency(struct file *file, void *priv, + struct v4l2_frequency *f) +{ + struct msi3101_state *s = video_drvdata(file); + int ret = 0; + dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d\n", + __func__, f->tuner, f->type); + + if (f->tuner == 0) { + f->frequency = s->f_adc; + ret = 0; + } else if (f->tuner == 1) { + f->type = V4L2_TUNER_RF; + ret = v4l2_subdev_call(s->v4l2_subdev, tuner, g_frequency, f); + } else { + ret = -EINVAL; + } + + return ret; } -static int vidioc_s_frequency(struct file *file, void *priv, +static int msi3101_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *f) { struct msi3101_state *s = video_drvdata(file); - dev_dbg(&s->udev->dev, "%s: frequency=%lu Hz (%u)\n", - __func__, f->frequency * 625UL / 10UL, f->frequency); + int ret; + dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d frequency=%u\n", + __func__, f->tuner, f->type, f->frequency); + + if (f->tuner == 0) { + s->f_adc = clamp_t(unsigned int, f->frequency, + bands[0].rangelow, + bands[0].rangehigh); + dev_dbg(&s->udev->dev, "%s: ADC frequency=%u Hz\n", + __func__, s->f_adc); + ret = msi3101_set_usb_adc(s); + } else if (f->tuner == 1) { + ret = v4l2_subdev_call(s->v4l2_subdev, tuner, s_frequency, f); + } else { + ret = -EINVAL; + } - return v4l2_ctrl_s_ctrl_int64(s->ctrl_tuner_rf, - f->frequency * 625UL / 10UL); + return ret; +} + +static int msi3101_enum_freq_bands(struct file *file, void *priv, + struct v4l2_frequency_band *band) +{ + struct msi3101_state *s = video_drvdata(file); + int ret; + dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d index=%d\n", + __func__, band->tuner, band->type, band->index); + + if (band->tuner == 0) { + if (band->index >= ARRAY_SIZE(bands)) { + ret = -EINVAL; + } else { + *band = bands[band->index]; + ret = 0; + } + } else if (band->tuner == 1) { + ret = v4l2_subdev_call(s->v4l2_subdev, tuner, + enum_freq_bands, band); + } else { + ret = -EINVAL; + } + + return ret; } static const struct v4l2_ioctl_ops msi3101_ioctl_ops = { .vidioc_querycap = msi3101_querycap, - .vidioc_enum_input = msi3101_enum_input, - .vidioc_g_input = msi3101_g_input, - .vidioc_s_input = msi3101_s_input, + .vidioc_enum_fmt_sdr_cap = msi3101_enum_fmt_sdr_cap, + .vidioc_g_fmt_sdr_cap = msi3101_g_fmt_sdr_cap, + .vidioc_s_fmt_sdr_cap = msi3101_s_fmt_sdr_cap, + .vidioc_try_fmt_sdr_cap = msi3101_try_fmt_sdr_cap, .vidioc_reqbufs = vb2_ioctl_reqbufs, .vidioc_create_bufs = vb2_ioctl_create_bufs, @@ -1680,9 +1312,12 @@ static const struct v4l2_ioctl_ops msi3101_ioctl_ops = { .vidioc_streamon = vb2_ioctl_streamon, .vidioc_streamoff = vb2_ioctl_streamoff, - .vidioc_g_tuner = vidioc_g_tuner, - .vidioc_s_tuner = vidioc_s_tuner, - .vidioc_s_frequency = vidioc_s_frequency, + .vidioc_g_tuner = msi3101_g_tuner, + .vidioc_s_tuner = msi3101_s_tuner, + + .vidioc_g_frequency = msi3101_g_frequency, + .vidioc_s_frequency = msi3101_s_frequency, + .vidioc_enum_freq_bands = msi3101_enum_freq_bands, .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, .vidioc_unsubscribe_event = v4l2_event_unsubscribe, @@ -1706,129 +1341,52 @@ static struct video_device msi3101_template = { .ioctl_ops = &msi3101_ioctl_ops, }; -static int msi3101_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct msi3101_state *s = - container_of(ctrl->handler, struct msi3101_state, - ctrl_handler); - int ret; - dev_dbg(&s->udev->dev, - "%s: id=%d name=%s val=%d min=%d max=%d step=%d\n", - __func__, ctrl->id, ctrl->name, ctrl->val, - ctrl->minimum, ctrl->maximum, ctrl->step); - - switch (ctrl->id) { - case MSI3101_CID_SAMPLING_MODE: - case MSI3101_CID_SAMPLING_RATE: - case MSI3101_CID_SAMPLING_RESOLUTION: - ret = 0; - break; - case MSI3101_CID_TUNER_RF: - case MSI3101_CID_TUNER_BW: - case MSI3101_CID_TUNER_IF: - case MSI3101_CID_TUNER_GAIN: - ret = msi3101_set_tuner(s); - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static const struct v4l2_ctrl_ops msi3101_ctrl_ops = { - .s_ctrl = msi3101_s_ctrl, -}; - static void msi3101_video_release(struct v4l2_device *v) { struct msi3101_state *s = container_of(v, struct msi3101_state, v4l2_dev); - v4l2_ctrl_handler_free(&s->ctrl_handler); + v4l2_ctrl_handler_free(&s->hdl); v4l2_device_unregister(&s->v4l2_dev); kfree(s); } +static int msi3101_transfer_one_message(struct spi_master *master, + struct spi_message *m) +{ + struct msi3101_state *s = spi_master_get_devdata(master); + struct spi_transfer *t; + int ret = 0; + u32 data; + + list_for_each_entry(t, &m->transfers, transfer_list) { + dev_dbg(&s->udev->dev, "%s: msg=%*ph\n", + __func__, t->len, t->tx_buf); + data = 0x09; /* reg 9 is SPI adapter */ + data |= ((u8 *)t->tx_buf)[0] << 8; + data |= ((u8 *)t->tx_buf)[1] << 16; + data |= ((u8 *)t->tx_buf)[2] << 24; + ret = msi3101_ctrl_msg(s, CMD_WREG, data); + } + + m->status = ret; + spi_finalize_current_message(master); + return ret; +} + static int msi3101_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *udev = interface_to_usbdev(intf); struct msi3101_state *s = NULL; + struct v4l2_subdev *sd; + struct spi_master *master; int ret; - static const char * const ctrl_sampling_mode_qmenu_strings[] = { - "Quadrature Sampling", - NULL, - }; - static const struct v4l2_ctrl_config ctrl_sampling_mode = { - .ops = &msi3101_ctrl_ops, - .id = MSI3101_CID_SAMPLING_MODE, - .type = V4L2_CTRL_TYPE_MENU, - .flags = V4L2_CTRL_FLAG_INACTIVE, - .name = "Sampling Mode", - .qmenu = ctrl_sampling_mode_qmenu_strings, - }; - static const struct v4l2_ctrl_config ctrl_sampling_rate = { - .ops = &msi3101_ctrl_ops, - .id = MSI3101_CID_SAMPLING_RATE, - .type = V4L2_CTRL_TYPE_INTEGER64, - .name = "Sampling Rate", - .min = 500000, - .max = 12000000, - .def = 2048000, - .step = 1, - }; - static const struct v4l2_ctrl_config ctrl_sampling_resolution = { - .ops = &msi3101_ctrl_ops, - .id = MSI3101_CID_SAMPLING_RESOLUTION, - .type = V4L2_CTRL_TYPE_INTEGER, - .flags = V4L2_CTRL_FLAG_INACTIVE, - .name = "Sampling Resolution", - .min = 10, - .max = 10, - .def = 10, - .step = 1, - }; - static const struct v4l2_ctrl_config ctrl_tuner_rf = { - .ops = &msi3101_ctrl_ops, - .id = MSI3101_CID_TUNER_RF, - .type = V4L2_CTRL_TYPE_INTEGER64, - .name = "Tuner RF", - .min = 40000000, - .max = 2000000000, - .def = 100000000, - .step = 1, - }; - static const struct v4l2_ctrl_config ctrl_tuner_bw = { - .ops = &msi3101_ctrl_ops, - .id = MSI3101_CID_TUNER_BW, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Tuner BW", - .min = 200000, - .max = 8000000, - .def = 600000, - .step = 1, - }; - static const struct v4l2_ctrl_config ctrl_tuner_if = { - .ops = &msi3101_ctrl_ops, - .id = MSI3101_CID_TUNER_IF, - .type = V4L2_CTRL_TYPE_INTEGER, - .flags = V4L2_CTRL_FLAG_INACTIVE, - .name = "Tuner IF", - .min = 0, - .max = 2048000, - .def = 0, - .step = 1, - }; - static const struct v4l2_ctrl_config ctrl_tuner_gain = { - .ops = &msi3101_ctrl_ops, - .id = MSI3101_CID_TUNER_GAIN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Tuner Gain", - .min = 0, - .max = 102, - .def = 0, - .step = 1, + static struct spi_board_info board_info = { + .modalias = "msi001", + .bus_num = 0, + .chip_select = 0, + .max_speed_hz = 12000000, }; s = kzalloc(sizeof(struct msi3101_state), GFP_KERNEL); @@ -1841,19 +1399,20 @@ static int msi3101_probe(struct usb_interface *intf, mutex_init(&s->vb_queue_lock); spin_lock_init(&s->queued_bufs_lock); INIT_LIST_HEAD(&s->queued_bufs); - s->udev = udev; + s->f_adc = bands[0].rangelow; + s->pixelformat = V4L2_SDR_FMT_CU8; /* Init videobuf2 queue structure */ - s->vb_queue.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; s->vb_queue.drv_priv = s; s->vb_queue.buf_struct_size = sizeof(struct msi3101_frame_buf); s->vb_queue.ops = &msi3101_vb2_ops; s->vb_queue.mem_ops = &vb2_vmalloc_memops; - s->vb_queue.timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + s->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; ret = vb2_queue_init(&s->vb_queue); - if (ret < 0) { + if (ret) { dev_err(&s->udev->dev, "Could not initialize vb2 queue\n"); goto err_free_mem; } @@ -1865,36 +1424,59 @@ static int msi3101_probe(struct usb_interface *intf, set_bit(V4L2_FL_USE_FH_PRIO, &s->vdev.flags); video_set_drvdata(&s->vdev, s); - /* Register controls */ - v4l2_ctrl_handler_init(&s->ctrl_handler, 7); - v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_sampling_mode, NULL); - s->ctrl_sampling_rate = v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_sampling_rate, NULL); - v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_sampling_resolution, NULL); - s->ctrl_tuner_rf = v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_tuner_rf, NULL); - s->ctrl_tuner_bw = v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_tuner_bw, NULL); - s->ctrl_tuner_if = v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_tuner_if, NULL); - s->ctrl_tuner_gain = v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_tuner_gain, NULL); - if (s->ctrl_handler.error) { - ret = s->ctrl_handler.error; - dev_err(&s->udev->dev, "Could not initialize controls\n"); - goto err_free_controls; - } - /* Register the v4l2_device structure */ s->v4l2_dev.release = msi3101_video_release; ret = v4l2_device_register(&intf->dev, &s->v4l2_dev); if (ret) { dev_err(&s->udev->dev, "Failed to register v4l2-device (%d)\n", ret); + goto err_free_mem; + } + + /* SPI master adapter */ + master = spi_alloc_master(&s->udev->dev, 0); + if (master == NULL) { + ret = -ENOMEM; + goto err_unregister_v4l2_dev; + } + + s->master = master; + master->bus_num = 0; + master->num_chipselect = 1; + master->transfer_one_message = msi3101_transfer_one_message; + spi_master_set_devdata(master, s); + ret = spi_register_master(master); + if (ret) { + spi_master_put(master); + goto err_unregister_v4l2_dev; + } + + /* load v4l2 subdevice */ + sd = v4l2_spi_new_subdev(&s->v4l2_dev, master, &board_info); + s->v4l2_subdev = sd; + if (sd == NULL) { + dev_err(&s->udev->dev, "cannot get v4l2 subdevice\n"); + ret = -ENODEV; + goto err_unregister_master; + } + + /* Register controls */ + v4l2_ctrl_handler_init(&s->hdl, 0); + if (s->hdl.error) { + ret = s->hdl.error; + dev_err(&s->udev->dev, "Could not initialize controls\n"); goto err_free_controls; } - s->v4l2_dev.ctrl_handler = &s->ctrl_handler; + /* currently all controls are from subdev */ + v4l2_ctrl_add_handler(&s->hdl, sd->ctrl_handler, NULL); + + s->v4l2_dev.ctrl_handler = &s->hdl; s->vdev.v4l2_dev = &s->v4l2_dev; s->vdev.lock = &s->v4l2_lock; - ret = video_register_device(&s->vdev, VFL_TYPE_GRABBER, -1); - if (ret < 0) { + ret = video_register_device(&s->vdev, VFL_TYPE_SDR, -1); + if (ret) { dev_err(&s->udev->dev, "Failed to register as video device (%d)\n", ret); @@ -1905,10 +1487,12 @@ static int msi3101_probe(struct usb_interface *intf, return 0; +err_free_controls: + v4l2_ctrl_handler_free(&s->hdl); +err_unregister_master: + spi_unregister_master(s->master); err_unregister_v4l2_dev: v4l2_device_unregister(&s->v4l2_dev); -err_free_controls: - v4l2_ctrl_handler_free(&s->ctrl_handler); err_free_mem: kfree(s); return ret; |
