From: Antti Palosaari Date: Sun, 13 Jul 2014 01:12:05 +0000 (+0300) Subject: msi2500: move msi3101 out of staging and rename X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=fd8b5f502929925468561279d5697a4d7d8b7671;p=deliverable%2Flinux.git msi2500: move msi3101 out of staging and rename Move msi3101 out of staging and rename to msi2500. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/usb/Kconfig b/drivers/media/usb/Kconfig index 38b6fe108fcf..fa67519abda2 100644 --- a/drivers/media/usb/Kconfig +++ b/drivers/media/usb/Kconfig @@ -54,6 +54,7 @@ endif if MEDIA_SDR_SUPPORT comment "Software defined radio USB devices" +source "drivers/media/usb/msi2500/Kconfig" source "drivers/media/usb/airspy/Kconfig" endif diff --git a/drivers/media/usb/Makefile b/drivers/media/usb/Makefile index 05d69c282e1f..712a6b1e8882 100644 --- a/drivers/media/usb/Makefile +++ b/drivers/media/usb/Makefile @@ -9,6 +9,7 @@ obj-y += zr364xx/ stkwebcam/ s2255/ obj-$(CONFIG_USB_VIDEO_CLASS) += uvc/ obj-$(CONFIG_USB_GSPCA) += gspca/ obj-$(CONFIG_USB_PWC) += pwc/ +obj-$(CONFIG_USB_MSI2500) += msi2500/ obj-$(CONFIG_USB_AIRSPY) += airspy/ obj-$(CONFIG_VIDEO_CPIA2) += cpia2/ obj-$(CONFIG_VIDEO_AU0828) += au0828/ diff --git a/drivers/media/usb/msi2500/Kconfig b/drivers/media/usb/msi2500/Kconfig new file mode 100644 index 000000000000..9eff8a76ff0e --- /dev/null +++ b/drivers/media/usb/msi2500/Kconfig @@ -0,0 +1,5 @@ +config USB_MSI2500 + tristate "Mirics MSi2500" + depends on VIDEO_V4L2 && SPI + select VIDEOBUF2_VMALLOC + select MEDIA_TUNER_MSI001 diff --git a/drivers/media/usb/msi2500/Makefile b/drivers/media/usb/msi2500/Makefile new file mode 100644 index 000000000000..b3bc2e53707f --- /dev/null +++ b/drivers/media/usb/msi2500/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_USB_MSI2500) += msi2500.o diff --git a/drivers/media/usb/msi2500/msi2500.c b/drivers/media/usb/msi2500/msi2500.c new file mode 100644 index 000000000000..53aca380b288 --- /dev/null +++ b/drivers/media/usb/msi2500/msi2500.c @@ -0,0 +1,1517 @@ +/* + * Mirics MSi3101 SDR Dongle driver + * + * Copyright (C) 2013 Antti Palosaari + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * That driver is somehow based of pwc driver: + * (C) 1999-2004 Nemosoft Unv. + * (C) 2004-2006 Luc Saillard (luc@saillard.org) + * (C) 2011 Hans de Goede + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * iConfiguration 0 + * bInterfaceNumber 0 + * bAlternateSetting 1 + * bNumEndpoints 1 + * bEndpointAddress 0x81 EP 1 IN + * bmAttributes 1 + * Transfer Type Isochronous + * wMaxPacketSize 0x1400 3x 1024 bytes + * bInterval 1 + */ +#define MAX_ISO_BUFS (8) +#define ISO_FRAMES_PER_DESC (8) +#define ISO_MAX_FRAME_SIZE (3 * 1024) +#define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE) +#define MAX_ISOC_ERRORS 20 + +/* TODO: These should be moved to V4L2 API */ +#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 { + struct vb2_buffer vb; /* common v4l buffer stuff -- must be first */ + struct list_head list; +}; + +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; + struct list_head queued_bufs; + spinlock_t queued_bufs_lock; /* Protects queued_bufs */ + + /* Note if taking both locks v4l2_lock must always be locked first! */ + struct mutex v4l2_lock; /* Protects everything else */ + struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */ + + /* 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, u8 *dst, u8 *src, + unsigned int src_len); + + /* Controls */ + struct v4l2_ctrl_handler hdl; + + u32 next_sample; /* for track lost packets */ + u32 sample; /* for sample rate calc */ + unsigned long jiffies_next; + unsigned int sample_ctrl_bit[4]; +}; + +/* Private functions */ +static struct msi3101_frame_buf *msi3101_get_next_fill_buf( + struct msi3101_state *s) +{ + unsigned long flags = 0; + struct msi3101_frame_buf *buf = NULL; + + spin_lock_irqsave(&s->queued_bufs_lock, flags); + if (list_empty(&s->queued_bufs)) + goto leave; + + buf = list_entry(s->queued_bufs.next, struct msi3101_frame_buf, list); + list_del(&buf->list); +leave: + spin_unlock_irqrestore(&s->queued_bufs_lock, flags); + return buf; +} + +/* + * +=========================================================================== + * | 00-1023 | USB packet type '504' + * +=========================================================================== + * | 00- 03 | sequence number of first sample in that USB packet + * +--------------------------------------------------------------------------- + * | 04- 15 | garbage + * +--------------------------------------------------------------------------- + * | 16-1023 | samples + * +--------------------------------------------------------------------------- + * 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]; + + /* There could be 1-3 1024 bytes URB frames */ + i_max = src_len / 1024; + + 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]); + + /* 504 x I+Q samples */ + src += 16; + memcpy(dst, src, 1008); + src += 1008; + dst += 1008; + dst_len += 1008; + } + + /* 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); + } + + /* next sample (sample = sample + i * 504) */ + s->next_sample = sample_num[i_max - 1] + 504; + + return dst_len; +} + +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; + 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; + 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]); + + /* 504 x I+Q samples */ + src += 16; + + 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 (unlikely(time_is_before_jiffies(s->jiffies_next))) { +#define MSECS 10000UL + unsigned int samples = sample_num[i_max - 1] - s->sample; + 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); + } + + /* next sample (sample = sample + i * 504) */ + s->next_sample = sample_num[i_max - 1] + 504; + + return dst_len; +} + +/* + * +=========================================================================== + * | 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 int msi3101_convert_stream_384(struct msi3101_state *s, u8 *dst, + u8 *src, unsigned int src_len) +{ + int i, i_max, dst_len = 0; + u32 sample_num[3]; + + /* There could be 1-3 1024 bytes URB frames */ + i_max = src_len / 1024; + 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 %*ph\n", 12, &src[4], 24, &src[1000]); + + /* 384 x I+Q samples */ + src += 16; + 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_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 bits=%d.%d.%d.%d\n", + src_len, samples, msecs, + samples * 1000UL / msecs, + s->sample_ctrl_bit[0], s->sample_ctrl_bit[1], + s->sample_ctrl_bit[2], s->sample_ctrl_bit[3]); + } + + /* next sample (sample = sample + i * 384) */ + s->next_sample = sample_num[i_max - 1] + 384; + + return dst_len; +} + +/* + * +=========================================================================== + * | 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 int msi3101_convert_stream_336(struct msi3101_state *s, u8 *dst, + u8 *src, unsigned int src_len) +{ + int i, i_max, dst_len = 0; + u32 sample_num[3]; + + /* There could be 1-3 1024 bytes URB frames */ + i_max = src_len / 1024; + + 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]); + + /* 336 x I+Q samples */ + src += 16; + memcpy(dst, src, 1008); + src += 1008; + dst += 1008; + dst_len += 1008; + } + + /* 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); + } + + /* next sample (sample = sample + i * 336) */ + s->next_sample = sample_num[i_max - 1] + 336; + + return dst_len; +} + +/* + * +=========================================================================== + * | 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 int msi3101_convert_stream_252(struct msi3101_state *s, u8 *dst, + u8 *src, unsigned int src_len) +{ + int i, i_max, dst_len = 0; + u32 sample_num[3]; + + /* There could be 1-3 1024 bytes URB frames */ + i_max = src_len / 1024; + + 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; + } + + /* 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); + } + + /* next sample (sample = sample + i * 252) */ + s->next_sample = sample_num[i_max - 1] + 252; + + return dst_len; +} + +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; + 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; + + 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; + + for (j = 0; j < 1008; j += 4) { + 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; + + /* 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); + } + + src += 1008; + dst += 1008; + dst_len += 1008; + } + + /* calculate samping rate and output it in 10 seconds intervals */ + if (unlikely(time_is_before_jiffies(s->jiffies_next))) { +#define MSECS 10000UL + unsigned int samples = sample_num[i_max - 1] - s->sample; + 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); + } + + /* next sample (sample = sample + i * 252) */ + s->next_sample = sample_num[i_max - 1] + 252; + + return dst_len; +} + +/* + * This gets called for the Isochronous pipe (stream). This is done in interrupt + * time, so it has to be fast, not crash, and not stall. Neat. + */ +static void msi3101_isoc_handler(struct urb *urb) +{ + struct msi3101_state *s = (struct msi3101_state *)urb->context; + int i, flen, fstatus; + unsigned char *iso_buf = NULL; + struct msi3101_frame_buf *fbuf; + + 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 (unlikely(urb->status != 0)) { + dev_dbg(&s->udev->dev, + "msi3101_isoc_handler() called with status %d\n", + urb->status); + /* Give up after a number of contiguous errors */ + if (++s->isoc_errors > MAX_ISOC_ERRORS) + dev_dbg(&s->udev->dev, + "Too many ISOC errors, bailing out\n"); + goto handler_end; + } else { + /* Reset ISOC error counter. We did get here, after all. */ + s->isoc_errors = 0; + } + + /* Compact data */ + for (i = 0; i < urb->number_of_packets; i++) { + void *ptr; + + /* Check frame error */ + fstatus = urb->iso_frame_desc[i].status; + if (unlikely(fstatus)) { + dev_dbg_ratelimited(&s->udev->dev, + "frame=%d/%d has error %d skipping\n", + i, urb->number_of_packets, fstatus); + continue; + } + + /* Check if that frame contains data */ + flen = urb->iso_frame_desc[i].actual_length; + 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 (unlikely(fbuf == NULL)) { + s->vb_full++; + dev_dbg_ratelimited(&s->udev->dev, + "videobuf is full, %d packets dropped\n", + s->vb_full); + continue; + } + + /* fill framebuffer */ + ptr = vb2_plane_vaddr(&fbuf->vb, 0); + 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); + } + +handler_end: + i = usb_submit_urb(urb, GFP_ATOMIC); + if (unlikely(i != 0)) + dev_dbg(&s->udev->dev, + "Error (%d) re-submitting urb in msi3101_isoc_handler\n", + i); +} + +static void msi3101_iso_stop(struct msi3101_state *s) +{ + int i; + dev_dbg(&s->udev->dev, "%s:\n", __func__); + + /* Unlinking ISOC buffers one by one */ + for (i = 0; i < MAX_ISO_BUFS; i++) { + if (s->urbs[i]) { + dev_dbg(&s->udev->dev, "Unlinking URB %p\n", + s->urbs[i]); + usb_kill_urb(s->urbs[i]); + } + } +} + +static void msi3101_iso_free(struct msi3101_state *s) +{ + int i; + dev_dbg(&s->udev->dev, "%s:\n", __func__); + + /* Freeing ISOC buffers one by one */ + for (i = 0; i < MAX_ISO_BUFS; i++) { + if (s->urbs[i]) { + dev_dbg(&s->udev->dev, "Freeing URB\n"); + if (s->urbs[i]->transfer_buffer) { + usb_free_coherent(s->udev, + s->urbs[i]->transfer_buffer_length, + s->urbs[i]->transfer_buffer, + s->urbs[i]->transfer_dma); + } + usb_free_urb(s->urbs[i]); + s->urbs[i] = NULL; + } + } +} + +/* Both v4l2_lock and vb_queue_lock should be locked when calling this */ +static void msi3101_isoc_cleanup(struct msi3101_state *s) +{ + dev_dbg(&s->udev->dev, "%s:\n", __func__); + + msi3101_iso_stop(s); + msi3101_iso_free(s); +} + +/* Both v4l2_lock and vb_queue_lock should be locked when calling this */ +static int msi3101_isoc_init(struct msi3101_state *s) +{ + struct usb_device *udev; + struct urb *urb; + int i, j, ret; + dev_dbg(&s->udev->dev, "%s:\n", __func__); + + s->isoc_errors = 0; + udev = s->udev; + + ret = usb_set_interface(s->udev, 0, 1); + if (ret) + return ret; + + /* Allocate and init Isochronuous urbs */ + for (i = 0; i < MAX_ISO_BUFS; i++) { + urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); + if (urb == NULL) { + dev_err(&s->udev->dev, + "Failed to allocate urb %d\n", i); + msi3101_isoc_cleanup(s); + return -ENOMEM; + } + s->urbs[i] = urb; + dev_dbg(&s->udev->dev, "Allocated URB at 0x%p\n", urb); + + urb->interval = 1; + urb->dev = udev; + urb->pipe = usb_rcvisocpipe(udev, 0x81); + urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; + urb->transfer_buffer = usb_alloc_coherent(udev, ISO_BUFFER_SIZE, + GFP_KERNEL, &urb->transfer_dma); + if (urb->transfer_buffer == NULL) { + dev_err(&s->udev->dev, + "Failed to allocate urb buffer %d\n", + i); + msi3101_isoc_cleanup(s); + return -ENOMEM; + } + urb->transfer_buffer_length = ISO_BUFFER_SIZE; + urb->complete = msi3101_isoc_handler; + urb->context = s; + urb->start_frame = 0; + urb->number_of_packets = ISO_FRAMES_PER_DESC; + for (j = 0; j < ISO_FRAMES_PER_DESC; j++) { + urb->iso_frame_desc[j].offset = j * ISO_MAX_FRAME_SIZE; + urb->iso_frame_desc[j].length = ISO_MAX_FRAME_SIZE; + } + } + + /* link */ + for (i = 0; i < MAX_ISO_BUFS; i++) { + ret = usb_submit_urb(s->urbs[i], GFP_KERNEL); + if (ret) { + dev_err(&s->udev->dev, + "isoc_init() submit_urb %d failed with error %d\n", + i, ret); + msi3101_isoc_cleanup(s); + return ret; + } + dev_dbg(&s->udev->dev, "URB 0x%p submitted.\n", s->urbs[i]); + } + + /* All is done... */ + return 0; +} + +/* Must be called with vb_queue_lock hold */ +static void msi3101_cleanup_queued_bufs(struct msi3101_state *s) +{ + unsigned long flags = 0; + dev_dbg(&s->udev->dev, "%s:\n", __func__); + + spin_lock_irqsave(&s->queued_bufs_lock, flags); + while (!list_empty(&s->queued_bufs)) { + struct msi3101_frame_buf *buf; + + buf = list_entry(s->queued_bufs.next, struct msi3101_frame_buf, + list); + list_del(&buf->list); + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); + } + spin_unlock_irqrestore(&s->queued_bufs_lock, flags); +} + +/* The user yanked out the cable... */ +static void msi3101_disconnect(struct usb_interface *intf) +{ + struct v4l2_device *v = usb_get_intfdata(intf); + struct msi3101_state *s = + container_of(v, struct msi3101_state, v4l2_dev); + dev_dbg(&s->udev->dev, "%s:\n", __func__); + + mutex_lock(&s->vb_queue_lock); + 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); + + v4l2_device_put(&s->v4l2_dev); +} + +static int msi3101_querycap(struct file *file, void *fh, + struct v4l2_capability *cap) +{ + struct msi3101_state *s = video_drvdata(file); + dev_dbg(&s->udev->dev, "%s:\n", __func__); + + 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_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, + unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) +{ + struct msi3101_state *s = vb2_get_drv_priv(vq); + dev_dbg(&s->udev->dev, "%s: *nbuffers=%d\n", __func__, *nbuffers); + + /* Absolute min and max number of buffers available for mmap() */ + *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 + * 2, 16-bit is enough for single sample + */ + 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 void msi3101_buf_queue(struct vb2_buffer *vb) +{ + struct msi3101_state *s = vb2_get_drv_priv(vb->vb2_queue); + struct msi3101_frame_buf *buf = + container_of(vb, struct msi3101_frame_buf, vb); + unsigned long flags = 0; + + /* Check the device has not disconnected between prep and queuing */ + if (unlikely(!s->udev)) { + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); + return; + } + + spin_lock_irqsave(&s->queued_bufs_lock, flags); + list_add_tail(&buf->list, &s->queued_bufs); + spin_unlock_irqrestore(&s->queued_bufs_lock, flags); +} + +#define CMD_WREG 0x41 +#define CMD_START_STREAMING 0x43 +#define CMD_STOP_STREAMING 0x45 +#define CMD_READ_UNKNOW 0x48 + +#define msi3101_dbg_usb_control_msg(udev, r, t, v, _i, b, l) { \ + char *direction; \ + if (t == (USB_TYPE_VENDOR | USB_DIR_OUT)) \ + direction = ">>>"; \ + else \ + direction = "<<<"; \ + dev_dbg(&udev->dev, "%s: %02x %02x %02x %02x %02x %02x %02x %02x " \ + "%s %*ph\n", __func__, t, r, v & 0xff, v >> 8, \ + _i & 0xff, _i >> 8, l & 0xff, l >> 8, direction, l, b); \ +} + +static int msi3101_ctrl_msg(struct msi3101_state *s, u8 cmd, u32 data) +{ + int ret; + u8 request = cmd; + u8 requesttype = USB_DIR_OUT | USB_TYPE_VENDOR; + u16 value = (data >> 0) & 0xffff; + u16 index = (data >> 16) & 0xffff; + + msi3101_dbg_usb_control_msg(s->udev, + request, requesttype, value, index, NULL, 0); + + ret = usb_control_msg(s->udev, usb_sndctrlpipe(s->udev, 0), + request, requesttype, value, index, NULL, 0, 2000); + + if (ret) + dev_err(&s->udev->dev, "%s: failed %d, cmd %02x, data %04x\n", + __func__, ret, cmd, data); + + return ret; +}; + +#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->f_adc; + + /* set tuner, subdev, filters according to sampling rate */ + bandwidth_auto = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO); + 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 */ + 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; + 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; + 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, power control + * [9] ?, power control + * [12:10] output divider + * [13] 0 ? + * [14] 0 ? + * [15] fractional MSB, bit 20 + * [16:19] N + * [23:20] ? + * [24:31] 0x01 + * + * output divider + * val div + * 0 - (invalid) + * 1 4 + * 2 6 + * 3 8 + * 4 10 + * 5 12 + * 6 14 + * 7 16 + * + * VCO 202000000 - 720000000++ + */ + reg3 = 0x01000303; + reg4 = 0x00000004; + + /* XXX: Filters? AGC? */ + if (f_sr < 6000000) + reg3 |= 0x1 << 20; + else if (f_sr < 7000000) + reg3 |= 0x5 << 20; + else if (f_sr < 8500000) + reg3 |= 0x9 << 20; + else + reg3 |= 0xd << 20; + + for (div_r_out = 4; div_r_out < 16; div_r_out += 2) { + f_vco = f_sr * div_r_out * 12; + dev_dbg(&s->udev->dev, "%s: div_r_out=%d f_vco=%d\n", + __func__, div_r_out, f_vco); + if (f_vco >= 202000000) + break; + } + + div_n = f_vco / (F_REF * DIV_R_IN); + div_m = f_vco % (F_REF * DIV_R_IN); + fract = 0x200000ul * div_m / (F_REF * DIV_R_IN); + + reg3 |= div_n << 16; + reg3 |= (div_r_out / 2 - 1) << 10; + reg3 |= ((fract >> 20) & 0x000001) << 15; /* [20] */ + reg4 |= ((fract >> 0) & 0x0fffff) << 8; /* [19:0] */ + + dev_dbg(&s->udev->dev, + "%s: f_sr=%d f_vco=%d div_n=%d div_m=%d div_r_out=%d reg3=%08x reg4=%08x\n", + __func__, f_sr, f_vco, div_n, div_m, div_r_out, reg3, reg4); + + ret = msi3101_ctrl_msg(s, CMD_WREG, 0x00608008); + if (ret) + goto err; + + ret = msi3101_ctrl_msg(s, CMD_WREG, 0x00000c05); + if (ret) + goto err; + + ret = msi3101_ctrl_msg(s, CMD_WREG, 0x00020000); + if (ret) + goto err; + + ret = msi3101_ctrl_msg(s, CMD_WREG, 0x00480102); + if (ret) + goto err; + + ret = msi3101_ctrl_msg(s, CMD_WREG, 0x00f38008); + if (ret) + goto err; + + ret = msi3101_ctrl_msg(s, CMD_WREG, reg7); + if (ret) + goto err; + + ret = msi3101_ctrl_msg(s, CMD_WREG, reg4); + if (ret) + goto err; + + ret = msi3101_ctrl_msg(s, CMD_WREG, reg3); + if (ret) + goto err; +err: + return ret; +}; + +static int msi3101_start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct msi3101_state *s = vb2_get_drv_priv(vq); + int ret; + dev_dbg(&s->udev->dev, "%s:\n", __func__); + + if (!s->udev) + return -ENODEV; + + 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); + if (ret) + msi3101_cleanup_queued_bufs(s); + + ret = msi3101_ctrl_msg(s, CMD_START_STREAMING, 0); + + mutex_unlock(&s->v4l2_lock); + + return ret; +} + +static void msi3101_stop_streaming(struct vb2_queue *vq) +{ + struct msi3101_state *s = vb2_get_drv_priv(vq); + + dev_dbg(&s->udev->dev, "%s:\n", __func__); + + mutex_lock(&s->v4l2_lock); + + if (s->udev) + msi3101_isoc_cleanup(s); + + msi3101_cleanup_queued_bufs(s); + + /* according to tests, at least 700us delay is required */ + msleep(20); + if (!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); +} + +static struct vb2_ops msi3101_vb2_ops = { + .queue_setup = msi3101_queue_setup, + .buf_queue = msi3101_buf_queue, + .start_streaming = msi3101_start_streaming, + .stop_streaming = msi3101_stop_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +static int msi3101_enum_fmt_sdr_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + 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(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_s_fmt_sdr_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + 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_try_fmt_sdr_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + 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 msi3101_s_tuner(struct file *file, void *priv, + const struct v4l2_tuner *v) +{ + struct msi3101_state *s = video_drvdata(file); + int ret; + dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index); + + 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 msi3101_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) +{ + struct msi3101_state *s = video_drvdata(file); + 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; + } + + return ret; +} + +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 msi3101_s_frequency(struct file *file, void *priv, + const struct v4l2_frequency *f) +{ + struct msi3101_state *s = video_drvdata(file); + 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 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_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, + .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + + .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, + .vidioc_log_status = v4l2_ctrl_log_status, +}; + +static const struct v4l2_file_operations msi3101_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .read = vb2_fop_read, + .poll = vb2_fop_poll, + .mmap = vb2_fop_mmap, + .unlocked_ioctl = video_ioctl2, +}; + +static struct video_device msi3101_template = { + .name = "Mirics MSi3101 SDR Dongle", + .release = video_device_release_empty, + .fops = &msi3101_fops, + .ioctl_ops = &msi3101_ioctl_ops, +}; + +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->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 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); + if (s == NULL) { + pr_err("Could not allocate memory for msi3101_state\n"); + return -ENOMEM; + } + + mutex_init(&s->v4l2_lock); + 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_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_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + ret = vb2_queue_init(&s->vb_queue); + if (ret) { + dev_err(&s->udev->dev, "Could not initialize vb2 queue\n"); + goto err_free_mem; + } + + /* Init video_device structure */ + s->vdev = msi3101_template; + s->vdev.queue = &s->vb_queue; + s->vdev.queue->lock = &s->vb_queue_lock; + video_set_drvdata(&s->vdev, s); + + /* 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; + } + + /* 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_SDR, -1); + if (ret) { + dev_err(&s->udev->dev, + "Failed to register as video device (%d)\n", + ret); + goto err_unregister_v4l2_dev; + } + dev_info(&s->udev->dev, "Registered as %s\n", + video_device_node_name(&s->vdev)); + + 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_mem: + kfree(s); + return ret; +} + +/* USB device ID list */ +static struct usb_device_id msi3101_id_table[] = { + { USB_DEVICE(0x1df7, 0x2500) }, /* Mirics MSi3101 SDR Dongle */ + { USB_DEVICE(0x2040, 0xd300) }, /* Hauppauge WinTV 133559 LF */ + { } +}; +MODULE_DEVICE_TABLE(usb, msi3101_id_table); + +/* USB subsystem interface */ +static struct usb_driver msi3101_driver = { + .name = KBUILD_MODNAME, + .probe = msi3101_probe, + .disconnect = msi3101_disconnect, + .id_table = msi3101_id_table, +}; + +module_usb_driver(msi3101_driver); + +MODULE_AUTHOR("Antti Palosaari "); +MODULE_DESCRIPTION("Mirics MSi3101 SDR Dongle"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig index a326d5d95ca8..e91c538d3d0d 100644 --- a/drivers/staging/media/Kconfig +++ b/drivers/staging/media/Kconfig @@ -31,8 +31,6 @@ source "drivers/staging/media/dt3155v4l/Kconfig" source "drivers/staging/media/go7007/Kconfig" -source "drivers/staging/media/msi3101/Kconfig" - source "drivers/staging/media/omap24xx/Kconfig" source "drivers/staging/media/solo6x10/Kconfig" diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile index e1e053a357cc..4f6c0ee0ad13 100644 --- a/drivers/staging/media/Makefile +++ b/drivers/staging/media/Makefile @@ -5,7 +5,6 @@ obj-$(CONFIG_LIRC_STAGING) += lirc/ obj-$(CONFIG_SOLO6X10) += solo6x10/ obj-$(CONFIG_VIDEO_DT3155) += dt3155v4l/ obj-$(CONFIG_VIDEO_GO7007) += go7007/ -obj-$(CONFIG_USB_MSI3101) += msi3101/ obj-$(CONFIG_VIDEO_DM365_VPFE) += davinci_vpfe/ obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/ obj-$(CONFIG_VIDEO_OMAP2) += omap24xx/ diff --git a/drivers/staging/media/msi3101/Kconfig b/drivers/staging/media/msi3101/Kconfig deleted file mode 100644 index 399dbbb0039c..000000000000 --- a/drivers/staging/media/msi3101/Kconfig +++ /dev/null @@ -1,7 +0,0 @@ -config USB_MSI3101 - tristate "Mirics MSi3101 SDR Dongle" - depends on USB && VIDEO_DEV && VIDEO_V4L2 && SPI - select VIDEOBUF2_CORE - select VIDEOBUF2_VMALLOC - select MEDIA_TUNER_MSI001 - diff --git a/drivers/staging/media/msi3101/Makefile b/drivers/staging/media/msi3101/Makefile deleted file mode 100644 index 3730654b0eb9..000000000000 --- a/drivers/staging/media/msi3101/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-$(CONFIG_USB_MSI3101) += sdr-msi3101.o diff --git a/drivers/staging/media/msi3101/sdr-msi3101.c b/drivers/staging/media/msi3101/sdr-msi3101.c deleted file mode 100644 index 53aca380b288..000000000000 --- a/drivers/staging/media/msi3101/sdr-msi3101.c +++ /dev/null @@ -1,1517 +0,0 @@ -/* - * Mirics MSi3101 SDR Dongle driver - * - * Copyright (C) 2013 Antti Palosaari - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - * That driver is somehow based of pwc driver: - * (C) 1999-2004 Nemosoft Unv. - * (C) 2004-2006 Luc Saillard (luc@saillard.org) - * (C) 2011 Hans de Goede - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* - * iConfiguration 0 - * bInterfaceNumber 0 - * bAlternateSetting 1 - * bNumEndpoints 1 - * bEndpointAddress 0x81 EP 1 IN - * bmAttributes 1 - * Transfer Type Isochronous - * wMaxPacketSize 0x1400 3x 1024 bytes - * bInterval 1 - */ -#define MAX_ISO_BUFS (8) -#define ISO_FRAMES_PER_DESC (8) -#define ISO_MAX_FRAME_SIZE (3 * 1024) -#define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE) -#define MAX_ISOC_ERRORS 20 - -/* TODO: These should be moved to V4L2 API */ -#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 { - struct vb2_buffer vb; /* common v4l buffer stuff -- must be first */ - struct list_head list; -}; - -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; - struct list_head queued_bufs; - spinlock_t queued_bufs_lock; /* Protects queued_bufs */ - - /* Note if taking both locks v4l2_lock must always be locked first! */ - struct mutex v4l2_lock; /* Protects everything else */ - struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */ - - /* 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, u8 *dst, u8 *src, - unsigned int src_len); - - /* Controls */ - struct v4l2_ctrl_handler hdl; - - u32 next_sample; /* for track lost packets */ - u32 sample; /* for sample rate calc */ - unsigned long jiffies_next; - unsigned int sample_ctrl_bit[4]; -}; - -/* Private functions */ -static struct msi3101_frame_buf *msi3101_get_next_fill_buf( - struct msi3101_state *s) -{ - unsigned long flags = 0; - struct msi3101_frame_buf *buf = NULL; - - spin_lock_irqsave(&s->queued_bufs_lock, flags); - if (list_empty(&s->queued_bufs)) - goto leave; - - buf = list_entry(s->queued_bufs.next, struct msi3101_frame_buf, list); - list_del(&buf->list); -leave: - spin_unlock_irqrestore(&s->queued_bufs_lock, flags); - return buf; -} - -/* - * +=========================================================================== - * | 00-1023 | USB packet type '504' - * +=========================================================================== - * | 00- 03 | sequence number of first sample in that USB packet - * +--------------------------------------------------------------------------- - * | 04- 15 | garbage - * +--------------------------------------------------------------------------- - * | 16-1023 | samples - * +--------------------------------------------------------------------------- - * 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]; - - /* There could be 1-3 1024 bytes URB frames */ - i_max = src_len / 1024; - - 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]); - - /* 504 x I+Q samples */ - src += 16; - memcpy(dst, src, 1008); - src += 1008; - dst += 1008; - dst_len += 1008; - } - - /* 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); - } - - /* next sample (sample = sample + i * 504) */ - s->next_sample = sample_num[i_max - 1] + 504; - - return dst_len; -} - -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; - 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; - 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]); - - /* 504 x I+Q samples */ - src += 16; - - 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 (unlikely(time_is_before_jiffies(s->jiffies_next))) { -#define MSECS 10000UL - unsigned int samples = sample_num[i_max - 1] - s->sample; - 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); - } - - /* next sample (sample = sample + i * 504) */ - s->next_sample = sample_num[i_max - 1] + 504; - - return dst_len; -} - -/* - * +=========================================================================== - * | 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 int msi3101_convert_stream_384(struct msi3101_state *s, u8 *dst, - u8 *src, unsigned int src_len) -{ - int i, i_max, dst_len = 0; - u32 sample_num[3]; - - /* There could be 1-3 1024 bytes URB frames */ - i_max = src_len / 1024; - 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 %*ph\n", 12, &src[4], 24, &src[1000]); - - /* 384 x I+Q samples */ - src += 16; - 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_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 bits=%d.%d.%d.%d\n", - src_len, samples, msecs, - samples * 1000UL / msecs, - s->sample_ctrl_bit[0], s->sample_ctrl_bit[1], - s->sample_ctrl_bit[2], s->sample_ctrl_bit[3]); - } - - /* next sample (sample = sample + i * 384) */ - s->next_sample = sample_num[i_max - 1] + 384; - - return dst_len; -} - -/* - * +=========================================================================== - * | 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 int msi3101_convert_stream_336(struct msi3101_state *s, u8 *dst, - u8 *src, unsigned int src_len) -{ - int i, i_max, dst_len = 0; - u32 sample_num[3]; - - /* There could be 1-3 1024 bytes URB frames */ - i_max = src_len / 1024; - - 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]); - - /* 336 x I+Q samples */ - src += 16; - memcpy(dst, src, 1008); - src += 1008; - dst += 1008; - dst_len += 1008; - } - - /* 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); - } - - /* next sample (sample = sample + i * 336) */ - s->next_sample = sample_num[i_max - 1] + 336; - - return dst_len; -} - -/* - * +=========================================================================== - * | 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 int msi3101_convert_stream_252(struct msi3101_state *s, u8 *dst, - u8 *src, unsigned int src_len) -{ - int i, i_max, dst_len = 0; - u32 sample_num[3]; - - /* There could be 1-3 1024 bytes URB frames */ - i_max = src_len / 1024; - - 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; - } - - /* 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); - } - - /* next sample (sample = sample + i * 252) */ - s->next_sample = sample_num[i_max - 1] + 252; - - return dst_len; -} - -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; - 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; - - 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; - - for (j = 0; j < 1008; j += 4) { - 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; - - /* 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); - } - - src += 1008; - dst += 1008; - dst_len += 1008; - } - - /* calculate samping rate and output it in 10 seconds intervals */ - if (unlikely(time_is_before_jiffies(s->jiffies_next))) { -#define MSECS 10000UL - unsigned int samples = sample_num[i_max - 1] - s->sample; - 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); - } - - /* next sample (sample = sample + i * 252) */ - s->next_sample = sample_num[i_max - 1] + 252; - - return dst_len; -} - -/* - * This gets called for the Isochronous pipe (stream). This is done in interrupt - * time, so it has to be fast, not crash, and not stall. Neat. - */ -static void msi3101_isoc_handler(struct urb *urb) -{ - struct msi3101_state *s = (struct msi3101_state *)urb->context; - int i, flen, fstatus; - unsigned char *iso_buf = NULL; - struct msi3101_frame_buf *fbuf; - - 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 (unlikely(urb->status != 0)) { - dev_dbg(&s->udev->dev, - "msi3101_isoc_handler() called with status %d\n", - urb->status); - /* Give up after a number of contiguous errors */ - if (++s->isoc_errors > MAX_ISOC_ERRORS) - dev_dbg(&s->udev->dev, - "Too many ISOC errors, bailing out\n"); - goto handler_end; - } else { - /* Reset ISOC error counter. We did get here, after all. */ - s->isoc_errors = 0; - } - - /* Compact data */ - for (i = 0; i < urb->number_of_packets; i++) { - void *ptr; - - /* Check frame error */ - fstatus = urb->iso_frame_desc[i].status; - if (unlikely(fstatus)) { - dev_dbg_ratelimited(&s->udev->dev, - "frame=%d/%d has error %d skipping\n", - i, urb->number_of_packets, fstatus); - continue; - } - - /* Check if that frame contains data */ - flen = urb->iso_frame_desc[i].actual_length; - 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 (unlikely(fbuf == NULL)) { - s->vb_full++; - dev_dbg_ratelimited(&s->udev->dev, - "videobuf is full, %d packets dropped\n", - s->vb_full); - continue; - } - - /* fill framebuffer */ - ptr = vb2_plane_vaddr(&fbuf->vb, 0); - 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); - } - -handler_end: - i = usb_submit_urb(urb, GFP_ATOMIC); - if (unlikely(i != 0)) - dev_dbg(&s->udev->dev, - "Error (%d) re-submitting urb in msi3101_isoc_handler\n", - i); -} - -static void msi3101_iso_stop(struct msi3101_state *s) -{ - int i; - dev_dbg(&s->udev->dev, "%s:\n", __func__); - - /* Unlinking ISOC buffers one by one */ - for (i = 0; i < MAX_ISO_BUFS; i++) { - if (s->urbs[i]) { - dev_dbg(&s->udev->dev, "Unlinking URB %p\n", - s->urbs[i]); - usb_kill_urb(s->urbs[i]); - } - } -} - -static void msi3101_iso_free(struct msi3101_state *s) -{ - int i; - dev_dbg(&s->udev->dev, "%s:\n", __func__); - - /* Freeing ISOC buffers one by one */ - for (i = 0; i < MAX_ISO_BUFS; i++) { - if (s->urbs[i]) { - dev_dbg(&s->udev->dev, "Freeing URB\n"); - if (s->urbs[i]->transfer_buffer) { - usb_free_coherent(s->udev, - s->urbs[i]->transfer_buffer_length, - s->urbs[i]->transfer_buffer, - s->urbs[i]->transfer_dma); - } - usb_free_urb(s->urbs[i]); - s->urbs[i] = NULL; - } - } -} - -/* Both v4l2_lock and vb_queue_lock should be locked when calling this */ -static void msi3101_isoc_cleanup(struct msi3101_state *s) -{ - dev_dbg(&s->udev->dev, "%s:\n", __func__); - - msi3101_iso_stop(s); - msi3101_iso_free(s); -} - -/* Both v4l2_lock and vb_queue_lock should be locked when calling this */ -static int msi3101_isoc_init(struct msi3101_state *s) -{ - struct usb_device *udev; - struct urb *urb; - int i, j, ret; - dev_dbg(&s->udev->dev, "%s:\n", __func__); - - s->isoc_errors = 0; - udev = s->udev; - - ret = usb_set_interface(s->udev, 0, 1); - if (ret) - return ret; - - /* Allocate and init Isochronuous urbs */ - for (i = 0; i < MAX_ISO_BUFS; i++) { - urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); - if (urb == NULL) { - dev_err(&s->udev->dev, - "Failed to allocate urb %d\n", i); - msi3101_isoc_cleanup(s); - return -ENOMEM; - } - s->urbs[i] = urb; - dev_dbg(&s->udev->dev, "Allocated URB at 0x%p\n", urb); - - urb->interval = 1; - urb->dev = udev; - urb->pipe = usb_rcvisocpipe(udev, 0x81); - urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; - urb->transfer_buffer = usb_alloc_coherent(udev, ISO_BUFFER_SIZE, - GFP_KERNEL, &urb->transfer_dma); - if (urb->transfer_buffer == NULL) { - dev_err(&s->udev->dev, - "Failed to allocate urb buffer %d\n", - i); - msi3101_isoc_cleanup(s); - return -ENOMEM; - } - urb->transfer_buffer_length = ISO_BUFFER_SIZE; - urb->complete = msi3101_isoc_handler; - urb->context = s; - urb->start_frame = 0; - urb->number_of_packets = ISO_FRAMES_PER_DESC; - for (j = 0; j < ISO_FRAMES_PER_DESC; j++) { - urb->iso_frame_desc[j].offset = j * ISO_MAX_FRAME_SIZE; - urb->iso_frame_desc[j].length = ISO_MAX_FRAME_SIZE; - } - } - - /* link */ - for (i = 0; i < MAX_ISO_BUFS; i++) { - ret = usb_submit_urb(s->urbs[i], GFP_KERNEL); - if (ret) { - dev_err(&s->udev->dev, - "isoc_init() submit_urb %d failed with error %d\n", - i, ret); - msi3101_isoc_cleanup(s); - return ret; - } - dev_dbg(&s->udev->dev, "URB 0x%p submitted.\n", s->urbs[i]); - } - - /* All is done... */ - return 0; -} - -/* Must be called with vb_queue_lock hold */ -static void msi3101_cleanup_queued_bufs(struct msi3101_state *s) -{ - unsigned long flags = 0; - dev_dbg(&s->udev->dev, "%s:\n", __func__); - - spin_lock_irqsave(&s->queued_bufs_lock, flags); - while (!list_empty(&s->queued_bufs)) { - struct msi3101_frame_buf *buf; - - buf = list_entry(s->queued_bufs.next, struct msi3101_frame_buf, - list); - list_del(&buf->list); - vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); - } - spin_unlock_irqrestore(&s->queued_bufs_lock, flags); -} - -/* The user yanked out the cable... */ -static void msi3101_disconnect(struct usb_interface *intf) -{ - struct v4l2_device *v = usb_get_intfdata(intf); - struct msi3101_state *s = - container_of(v, struct msi3101_state, v4l2_dev); - dev_dbg(&s->udev->dev, "%s:\n", __func__); - - mutex_lock(&s->vb_queue_lock); - 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); - - v4l2_device_put(&s->v4l2_dev); -} - -static int msi3101_querycap(struct file *file, void *fh, - struct v4l2_capability *cap) -{ - struct msi3101_state *s = video_drvdata(file); - dev_dbg(&s->udev->dev, "%s:\n", __func__); - - 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_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, - unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) -{ - struct msi3101_state *s = vb2_get_drv_priv(vq); - dev_dbg(&s->udev->dev, "%s: *nbuffers=%d\n", __func__, *nbuffers); - - /* Absolute min and max number of buffers available for mmap() */ - *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 - * 2, 16-bit is enough for single sample - */ - 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 void msi3101_buf_queue(struct vb2_buffer *vb) -{ - struct msi3101_state *s = vb2_get_drv_priv(vb->vb2_queue); - struct msi3101_frame_buf *buf = - container_of(vb, struct msi3101_frame_buf, vb); - unsigned long flags = 0; - - /* Check the device has not disconnected between prep and queuing */ - if (unlikely(!s->udev)) { - vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); - return; - } - - spin_lock_irqsave(&s->queued_bufs_lock, flags); - list_add_tail(&buf->list, &s->queued_bufs); - spin_unlock_irqrestore(&s->queued_bufs_lock, flags); -} - -#define CMD_WREG 0x41 -#define CMD_START_STREAMING 0x43 -#define CMD_STOP_STREAMING 0x45 -#define CMD_READ_UNKNOW 0x48 - -#define msi3101_dbg_usb_control_msg(udev, r, t, v, _i, b, l) { \ - char *direction; \ - if (t == (USB_TYPE_VENDOR | USB_DIR_OUT)) \ - direction = ">>>"; \ - else \ - direction = "<<<"; \ - dev_dbg(&udev->dev, "%s: %02x %02x %02x %02x %02x %02x %02x %02x " \ - "%s %*ph\n", __func__, t, r, v & 0xff, v >> 8, \ - _i & 0xff, _i >> 8, l & 0xff, l >> 8, direction, l, b); \ -} - -static int msi3101_ctrl_msg(struct msi3101_state *s, u8 cmd, u32 data) -{ - int ret; - u8 request = cmd; - u8 requesttype = USB_DIR_OUT | USB_TYPE_VENDOR; - u16 value = (data >> 0) & 0xffff; - u16 index = (data >> 16) & 0xffff; - - msi3101_dbg_usb_control_msg(s->udev, - request, requesttype, value, index, NULL, 0); - - ret = usb_control_msg(s->udev, usb_sndctrlpipe(s->udev, 0), - request, requesttype, value, index, NULL, 0, 2000); - - if (ret) - dev_err(&s->udev->dev, "%s: failed %d, cmd %02x, data %04x\n", - __func__, ret, cmd, data); - - return ret; -}; - -#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->f_adc; - - /* set tuner, subdev, filters according to sampling rate */ - bandwidth_auto = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO); - 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 */ - 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; - 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; - 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, power control - * [9] ?, power control - * [12:10] output divider - * [13] 0 ? - * [14] 0 ? - * [15] fractional MSB, bit 20 - * [16:19] N - * [23:20] ? - * [24:31] 0x01 - * - * output divider - * val div - * 0 - (invalid) - * 1 4 - * 2 6 - * 3 8 - * 4 10 - * 5 12 - * 6 14 - * 7 16 - * - * VCO 202000000 - 720000000++ - */ - reg3 = 0x01000303; - reg4 = 0x00000004; - - /* XXX: Filters? AGC? */ - if (f_sr < 6000000) - reg3 |= 0x1 << 20; - else if (f_sr < 7000000) - reg3 |= 0x5 << 20; - else if (f_sr < 8500000) - reg3 |= 0x9 << 20; - else - reg3 |= 0xd << 20; - - for (div_r_out = 4; div_r_out < 16; div_r_out += 2) { - f_vco = f_sr * div_r_out * 12; - dev_dbg(&s->udev->dev, "%s: div_r_out=%d f_vco=%d\n", - __func__, div_r_out, f_vco); - if (f_vco >= 202000000) - break; - } - - div_n = f_vco / (F_REF * DIV_R_IN); - div_m = f_vco % (F_REF * DIV_R_IN); - fract = 0x200000ul * div_m / (F_REF * DIV_R_IN); - - reg3 |= div_n << 16; - reg3 |= (div_r_out / 2 - 1) << 10; - reg3 |= ((fract >> 20) & 0x000001) << 15; /* [20] */ - reg4 |= ((fract >> 0) & 0x0fffff) << 8; /* [19:0] */ - - dev_dbg(&s->udev->dev, - "%s: f_sr=%d f_vco=%d div_n=%d div_m=%d div_r_out=%d reg3=%08x reg4=%08x\n", - __func__, f_sr, f_vco, div_n, div_m, div_r_out, reg3, reg4); - - ret = msi3101_ctrl_msg(s, CMD_WREG, 0x00608008); - if (ret) - goto err; - - ret = msi3101_ctrl_msg(s, CMD_WREG, 0x00000c05); - if (ret) - goto err; - - ret = msi3101_ctrl_msg(s, CMD_WREG, 0x00020000); - if (ret) - goto err; - - ret = msi3101_ctrl_msg(s, CMD_WREG, 0x00480102); - if (ret) - goto err; - - ret = msi3101_ctrl_msg(s, CMD_WREG, 0x00f38008); - if (ret) - goto err; - - ret = msi3101_ctrl_msg(s, CMD_WREG, reg7); - if (ret) - goto err; - - ret = msi3101_ctrl_msg(s, CMD_WREG, reg4); - if (ret) - goto err; - - ret = msi3101_ctrl_msg(s, CMD_WREG, reg3); - if (ret) - goto err; -err: - return ret; -}; - -static int msi3101_start_streaming(struct vb2_queue *vq, unsigned int count) -{ - struct msi3101_state *s = vb2_get_drv_priv(vq); - int ret; - dev_dbg(&s->udev->dev, "%s:\n", __func__); - - if (!s->udev) - return -ENODEV; - - 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); - if (ret) - msi3101_cleanup_queued_bufs(s); - - ret = msi3101_ctrl_msg(s, CMD_START_STREAMING, 0); - - mutex_unlock(&s->v4l2_lock); - - return ret; -} - -static void msi3101_stop_streaming(struct vb2_queue *vq) -{ - struct msi3101_state *s = vb2_get_drv_priv(vq); - - dev_dbg(&s->udev->dev, "%s:\n", __func__); - - mutex_lock(&s->v4l2_lock); - - if (s->udev) - msi3101_isoc_cleanup(s); - - msi3101_cleanup_queued_bufs(s); - - /* according to tests, at least 700us delay is required */ - msleep(20); - if (!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); -} - -static struct vb2_ops msi3101_vb2_ops = { - .queue_setup = msi3101_queue_setup, - .buf_queue = msi3101_buf_queue, - .start_streaming = msi3101_start_streaming, - .stop_streaming = msi3101_stop_streaming, - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, -}; - -static int msi3101_enum_fmt_sdr_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - 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(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_s_fmt_sdr_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - 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_try_fmt_sdr_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - 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 msi3101_s_tuner(struct file *file, void *priv, - const struct v4l2_tuner *v) -{ - struct msi3101_state *s = video_drvdata(file); - int ret; - dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index); - - 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 msi3101_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) -{ - struct msi3101_state *s = video_drvdata(file); - 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; - } - - return ret; -} - -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 msi3101_s_frequency(struct file *file, void *priv, - const struct v4l2_frequency *f) -{ - struct msi3101_state *s = video_drvdata(file); - 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 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_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, - .vidioc_prepare_buf = vb2_ioctl_prepare_buf, - .vidioc_querybuf = vb2_ioctl_querybuf, - .vidioc_qbuf = vb2_ioctl_qbuf, - .vidioc_dqbuf = vb2_ioctl_dqbuf, - - .vidioc_streamon = vb2_ioctl_streamon, - .vidioc_streamoff = vb2_ioctl_streamoff, - - .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, - .vidioc_log_status = v4l2_ctrl_log_status, -}; - -static const struct v4l2_file_operations msi3101_fops = { - .owner = THIS_MODULE, - .open = v4l2_fh_open, - .release = vb2_fop_release, - .read = vb2_fop_read, - .poll = vb2_fop_poll, - .mmap = vb2_fop_mmap, - .unlocked_ioctl = video_ioctl2, -}; - -static struct video_device msi3101_template = { - .name = "Mirics MSi3101 SDR Dongle", - .release = video_device_release_empty, - .fops = &msi3101_fops, - .ioctl_ops = &msi3101_ioctl_ops, -}; - -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->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 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); - if (s == NULL) { - pr_err("Could not allocate memory for msi3101_state\n"); - return -ENOMEM; - } - - mutex_init(&s->v4l2_lock); - 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_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_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - ret = vb2_queue_init(&s->vb_queue); - if (ret) { - dev_err(&s->udev->dev, "Could not initialize vb2 queue\n"); - goto err_free_mem; - } - - /* Init video_device structure */ - s->vdev = msi3101_template; - s->vdev.queue = &s->vb_queue; - s->vdev.queue->lock = &s->vb_queue_lock; - video_set_drvdata(&s->vdev, s); - - /* 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; - } - - /* 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_SDR, -1); - if (ret) { - dev_err(&s->udev->dev, - "Failed to register as video device (%d)\n", - ret); - goto err_unregister_v4l2_dev; - } - dev_info(&s->udev->dev, "Registered as %s\n", - video_device_node_name(&s->vdev)); - - 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_mem: - kfree(s); - return ret; -} - -/* USB device ID list */ -static struct usb_device_id msi3101_id_table[] = { - { USB_DEVICE(0x1df7, 0x2500) }, /* Mirics MSi3101 SDR Dongle */ - { USB_DEVICE(0x2040, 0xd300) }, /* Hauppauge WinTV 133559 LF */ - { } -}; -MODULE_DEVICE_TABLE(usb, msi3101_id_table); - -/* USB subsystem interface */ -static struct usb_driver msi3101_driver = { - .name = KBUILD_MODNAME, - .probe = msi3101_probe, - .disconnect = msi3101_disconnect, - .id_table = msi3101_id_table, -}; - -module_usb_driver(msi3101_driver); - -MODULE_AUTHOR("Antti Palosaari "); -MODULE_DESCRIPTION("Mirics MSi3101 SDR Dongle"); -MODULE_LICENSE("GPL");