| /* | |
| * Realtek RTL2832U SDR driver | |
| * | |
| * Copyright (C) 2013 Antti Palosaari <crope@iki.fi> | |
| * | |
| * 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. | |
| * | |
| * GNU Radio plugin "gr-kernel" for device usage will be on: | |
| * http://git.linuxtv.org/anttip/gr-kernel.git | |
| * | |
| */ | |
| #include "rtl2832_sdr.h" | |
| #include "dvb_usb.h" | |
| #include <media/v4l2-device.h> | |
| #include <media/v4l2-ioctl.h> | |
| #include <media/v4l2-ctrls.h> | |
| #include <media/v4l2-event.h> | |
| #include <media/videobuf2-v4l2.h> | |
| #include <media/videobuf2-vmalloc.h> | |
| #include <linux/platform_device.h> | |
| #include <linux/jiffies.h> | |
| #include <linux/math64.h> | |
| #include <linux/regmap.h> | |
| static bool rtl2832_sdr_emulated_fmt; | |
| module_param_named(emulated_formats, rtl2832_sdr_emulated_fmt, bool, 0644); | |
| MODULE_PARM_DESC(emulated_formats, "enable emulated formats (disappears in future)"); | |
| /* Original macro does not contain enough null pointer checks for our need */ | |
| #define V4L2_SUBDEV_HAS_OP(sd, o, f) \ | |
| ((sd) && (sd)->ops && (sd)->ops->o && (sd)->ops->o->f) | |
| #define MAX_BULK_BUFS (10) | |
| #define BULK_BUFFER_SIZE (128 * 512) | |
| static const struct v4l2_frequency_band bands_adc[] = { | |
| { | |
| .tuner = 0, | |
| .type = V4L2_TUNER_ADC, | |
| .index = 0, | |
| .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
| .rangelow = 300000, | |
| .rangehigh = 300000, | |
| }, | |
| { | |
| .tuner = 0, | |
| .type = V4L2_TUNER_ADC, | |
| .index = 1, | |
| .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
| .rangelow = 900001, | |
| .rangehigh = 2800000, | |
| }, | |
| { | |
| .tuner = 0, | |
| .type = V4L2_TUNER_ADC, | |
| .index = 2, | |
| .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
| .rangelow = 3200000, | |
| .rangehigh = 3200000, | |
| }, | |
| }; | |
| static const struct v4l2_frequency_band bands_fm[] = { | |
| { | |
| .tuner = 1, | |
| .type = V4L2_TUNER_RF, | |
| .index = 0, | |
| .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
| .rangelow = 50000000, | |
| .rangehigh = 2000000000, | |
| }, | |
| }; | |
| /* stream formats */ | |
| struct rtl2832_sdr_format { | |
| char *name; | |
| u32 pixelformat; | |
| u32 buffersize; | |
| }; | |
| static struct rtl2832_sdr_format formats[] = { | |
| { | |
| .name = "Complex U8", | |
| .pixelformat = V4L2_SDR_FMT_CU8, | |
| .buffersize = BULK_BUFFER_SIZE, | |
| }, { | |
| .name = "Complex U16LE (emulated)", | |
| .pixelformat = V4L2_SDR_FMT_CU16LE, | |
| .buffersize = BULK_BUFFER_SIZE * 2, | |
| }, | |
| }; | |
| static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); | |
| /* intermediate buffers with raw data from the USB device */ | |
| struct rtl2832_sdr_frame_buf { | |
| /* common v4l buffer stuff -- must be first */ | |
| struct vb2_v4l2_buffer vb; | |
| struct list_head list; | |
| }; | |
| struct rtl2832_sdr_dev { | |
| #define POWER_ON 0 /* BIT(0) */ | |
| #define URB_BUF 1 /* BIT(1) */ | |
| unsigned long flags; | |
| struct platform_device *pdev; | |
| struct regmap *regmap; | |
| struct video_device vdev; | |
| struct v4l2_device v4l2_dev; | |
| struct v4l2_subdev *v4l2_subdev; | |
| /* videobuf2 queue and queued buffers list */ | |
| struct vb2_queue vb_queue; | |
| struct list_head queued_bufs; | |
| spinlock_t queued_bufs_lock; /* Protects queued_bufs */ | |
| unsigned sequence; /* buffer sequence counter */ | |
| /* 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 vb_full; /* vb is full and packets dropped */ | |
| struct urb *urb_list[MAX_BULK_BUFS]; | |
| int buf_num; | |
| unsigned long buf_size; | |
| u8 *buf_list[MAX_BULK_BUFS]; | |
| dma_addr_t dma_addr[MAX_BULK_BUFS]; | |
| int urbs_initialized; | |
| int urbs_submitted; | |
| unsigned int f_adc, f_tuner; | |
| u32 pixelformat; | |
| u32 buffersize; | |
| unsigned int num_formats; | |
| /* Controls */ | |
| struct v4l2_ctrl_handler hdl; | |
| struct v4l2_ctrl *bandwidth_auto; | |
| struct v4l2_ctrl *bandwidth; | |
| /* for sample rate calc */ | |
| unsigned int sample; | |
| unsigned int sample_measured; | |
| unsigned long jiffies_next; | |
| }; | |
| /* Private functions */ | |
| static struct rtl2832_sdr_frame_buf *rtl2832_sdr_get_next_fill_buf( | |
| struct rtl2832_sdr_dev *dev) | |
| { | |
| unsigned long flags; | |
| struct rtl2832_sdr_frame_buf *buf = NULL; | |
| spin_lock_irqsave(&dev->queued_bufs_lock, flags); | |
| if (list_empty(&dev->queued_bufs)) | |
| goto leave; | |
| buf = list_entry(dev->queued_bufs.next, | |
| struct rtl2832_sdr_frame_buf, list); | |
| list_del(&buf->list); | |
| leave: | |
| spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); | |
| return buf; | |
| } | |
| static unsigned int rtl2832_sdr_convert_stream(struct rtl2832_sdr_dev *dev, | |
| void *dst, const u8 *src, unsigned int src_len) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| unsigned int dst_len; | |
| if (dev->pixelformat == V4L2_SDR_FMT_CU8) { | |
| /* native stream, no need to convert */ | |
| memcpy(dst, src, src_len); | |
| dst_len = src_len; | |
| } else if (dev->pixelformat == V4L2_SDR_FMT_CU16LE) { | |
| /* convert u8 to u16 */ | |
| unsigned int i; | |
| u16 *u16dst = dst; | |
| for (i = 0; i < src_len; i++) | |
| *u16dst++ = (src[i] << 8) | (src[i] >> 0); | |
| dst_len = 2 * src_len; | |
| } else { | |
| dst_len = 0; | |
| } | |
| /* calculate sample rate and output it in 10 seconds intervals */ | |
| if (unlikely(time_is_before_jiffies(dev->jiffies_next))) { | |
| #define MSECS 10000UL | |
| unsigned int msecs = jiffies_to_msecs(jiffies - | |
| dev->jiffies_next + msecs_to_jiffies(MSECS)); | |
| unsigned int samples = dev->sample - dev->sample_measured; | |
| dev->jiffies_next = jiffies + msecs_to_jiffies(MSECS); | |
| dev->sample_measured = dev->sample; | |
| dev_dbg(&pdev->dev, | |
| "slen=%u samples=%u msecs=%u sample rate=%lu\n", | |
| src_len, samples, msecs, samples * 1000UL / msecs); | |
| } | |
| /* total number of I+Q pairs */ | |
| dev->sample += src_len / 2; | |
| return dst_len; | |
| } | |
| /* | |
| * This gets called for the bulk stream pipe. This is done in interrupt | |
| * time, so it has to be fast, not crash, and not stall. Neat. | |
| */ | |
| static void rtl2832_sdr_urb_complete(struct urb *urb) | |
| { | |
| struct rtl2832_sdr_dev *dev = urb->context; | |
| struct platform_device *pdev = dev->pdev; | |
| struct rtl2832_sdr_frame_buf *fbuf; | |
| dev_dbg_ratelimited(&pdev->dev, "status=%d length=%d/%d errors=%d\n", | |
| urb->status, urb->actual_length, | |
| urb->transfer_buffer_length, urb->error_count); | |
| switch (urb->status) { | |
| case 0: /* success */ | |
| case -ETIMEDOUT: /* NAK */ | |
| break; | |
| case -ECONNRESET: /* kill */ | |
| case -ENOENT: | |
| case -ESHUTDOWN: | |
| return; | |
| default: /* error */ | |
| dev_err_ratelimited(&pdev->dev, "urb failed=%d\n", urb->status); | |
| break; | |
| } | |
| if (likely(urb->actual_length > 0)) { | |
| void *ptr; | |
| unsigned int len; | |
| /* get free framebuffer */ | |
| fbuf = rtl2832_sdr_get_next_fill_buf(dev); | |
| if (unlikely(fbuf == NULL)) { | |
| dev->vb_full++; | |
| dev_notice_ratelimited(&pdev->dev, | |
| "videobuf is full, %d packets dropped\n", | |
| dev->vb_full); | |
| goto skip; | |
| } | |
| /* fill framebuffer */ | |
| ptr = vb2_plane_vaddr(&fbuf->vb.vb2_buf, 0); | |
| len = rtl2832_sdr_convert_stream(dev, ptr, urb->transfer_buffer, | |
| urb->actual_length); | |
| vb2_set_plane_payload(&fbuf->vb.vb2_buf, 0, len); | |
| fbuf->vb.vb2_buf.timestamp = ktime_get_ns(); | |
| fbuf->vb.sequence = dev->sequence++; | |
| vb2_buffer_done(&fbuf->vb.vb2_buf, VB2_BUF_STATE_DONE); | |
| } | |
| skip: | |
| usb_submit_urb(urb, GFP_ATOMIC); | |
| } | |
| static int rtl2832_sdr_kill_urbs(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| int i; | |
| for (i = dev->urbs_submitted - 1; i >= 0; i--) { | |
| dev_dbg(&pdev->dev, "kill urb=%d\n", i); | |
| /* stop the URB */ | |
| usb_kill_urb(dev->urb_list[i]); | |
| } | |
| dev->urbs_submitted = 0; | |
| return 0; | |
| } | |
| static int rtl2832_sdr_submit_urbs(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| int i, ret; | |
| for (i = 0; i < dev->urbs_initialized; i++) { | |
| dev_dbg(&pdev->dev, "submit urb=%d\n", i); | |
| ret = usb_submit_urb(dev->urb_list[i], GFP_ATOMIC); | |
| if (ret) { | |
| dev_err(&pdev->dev, | |
| "Could not submit urb no. %d - get them all back\n", | |
| i); | |
| rtl2832_sdr_kill_urbs(dev); | |
| return ret; | |
| } | |
| dev->urbs_submitted++; | |
| } | |
| return 0; | |
| } | |
| static int rtl2832_sdr_free_stream_bufs(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| if (test_bit(URB_BUF, &dev->flags)) { | |
| while (dev->buf_num) { | |
| dev->buf_num--; | |
| dev_dbg(&pdev->dev, "free buf=%d\n", dev->buf_num); | |
| usb_free_coherent(dev->udev, dev->buf_size, | |
| dev->buf_list[dev->buf_num], | |
| dev->dma_addr[dev->buf_num]); | |
| } | |
| } | |
| clear_bit(URB_BUF, &dev->flags); | |
| return 0; | |
| } | |
| static int rtl2832_sdr_alloc_stream_bufs(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| dev->buf_num = 0; | |
| dev->buf_size = BULK_BUFFER_SIZE; | |
| dev_dbg(&pdev->dev, "all in all I will use %u bytes for streaming\n", | |
| MAX_BULK_BUFS * BULK_BUFFER_SIZE); | |
| for (dev->buf_num = 0; dev->buf_num < MAX_BULK_BUFS; dev->buf_num++) { | |
| dev->buf_list[dev->buf_num] = usb_alloc_coherent(dev->udev, | |
| BULK_BUFFER_SIZE, GFP_ATOMIC, | |
| &dev->dma_addr[dev->buf_num]); | |
| if (!dev->buf_list[dev->buf_num]) { | |
| dev_dbg(&pdev->dev, "alloc buf=%d failed\n", | |
| dev->buf_num); | |
| rtl2832_sdr_free_stream_bufs(dev); | |
| return -ENOMEM; | |
| } | |
| dev_dbg(&pdev->dev, "alloc buf=%d %p (dma %llu)\n", | |
| dev->buf_num, dev->buf_list[dev->buf_num], | |
| (long long)dev->dma_addr[dev->buf_num]); | |
| set_bit(URB_BUF, &dev->flags); | |
| } | |
| return 0; | |
| } | |
| static int rtl2832_sdr_free_urbs(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| int i; | |
| rtl2832_sdr_kill_urbs(dev); | |
| for (i = dev->urbs_initialized - 1; i >= 0; i--) { | |
| if (dev->urb_list[i]) { | |
| dev_dbg(&pdev->dev, "free urb=%d\n", i); | |
| /* free the URBs */ | |
| usb_free_urb(dev->urb_list[i]); | |
| } | |
| } | |
| dev->urbs_initialized = 0; | |
| return 0; | |
| } | |
| static int rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| int i, j; | |
| /* allocate the URBs */ | |
| for (i = 0; i < MAX_BULK_BUFS; i++) { | |
| dev_dbg(&pdev->dev, "alloc urb=%d\n", i); | |
| dev->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC); | |
| if (!dev->urb_list[i]) { | |
| for (j = 0; j < i; j++) | |
| usb_free_urb(dev->urb_list[j]); | |
| return -ENOMEM; | |
| } | |
| usb_fill_bulk_urb(dev->urb_list[i], | |
| dev->udev, | |
| usb_rcvbulkpipe(dev->udev, 0x81), | |
| dev->buf_list[i], | |
| BULK_BUFFER_SIZE, | |
| rtl2832_sdr_urb_complete, dev); | |
| dev->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
| dev->urb_list[i]->transfer_dma = dev->dma_addr[i]; | |
| dev->urbs_initialized++; | |
| } | |
| return 0; | |
| } | |
| /* Must be called with vb_queue_lock hold */ | |
| static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| unsigned long flags; | |
| dev_dbg(&pdev->dev, "\n"); | |
| spin_lock_irqsave(&dev->queued_bufs_lock, flags); | |
| while (!list_empty(&dev->queued_bufs)) { | |
| struct rtl2832_sdr_frame_buf *buf; | |
| buf = list_entry(dev->queued_bufs.next, | |
| struct rtl2832_sdr_frame_buf, list); | |
| list_del(&buf->list); | |
| vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); | |
| } | |
| spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); | |
| } | |
| static int rtl2832_sdr_querycap(struct file *file, void *fh, | |
| struct v4l2_capability *cap) | |
| { | |
| struct rtl2832_sdr_dev *dev = video_drvdata(file); | |
| struct platform_device *pdev = dev->pdev; | |
| dev_dbg(&pdev->dev, "\n"); | |
| strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); | |
| strlcpy(cap->card, dev->vdev.name, sizeof(cap->card)); | |
| usb_make_path(dev->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 rtl2832_sdr_queue_setup(struct vb2_queue *vq, | |
| unsigned int *nbuffers, | |
| unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) | |
| { | |
| struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); | |
| struct platform_device *pdev = dev->pdev; | |
| dev_dbg(&pdev->dev, "nbuffers=%d\n", *nbuffers); | |
| /* Need at least 8 buffers */ | |
| if (vq->num_buffers + *nbuffers < 8) | |
| *nbuffers = 8 - vq->num_buffers; | |
| *nplanes = 1; | |
| sizes[0] = PAGE_ALIGN(dev->buffersize); | |
| dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]); | |
| return 0; | |
| } | |
| static int rtl2832_sdr_buf_prepare(struct vb2_buffer *vb) | |
| { | |
| struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vb->vb2_queue); | |
| /* Don't allow queing new buffers after device disconnection */ | |
| if (!dev->udev) | |
| return -ENODEV; | |
| return 0; | |
| } | |
| static void rtl2832_sdr_buf_queue(struct vb2_buffer *vb) | |
| { | |
| struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); | |
| struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vb->vb2_queue); | |
| struct rtl2832_sdr_frame_buf *buf = | |
| container_of(vbuf, struct rtl2832_sdr_frame_buf, vb); | |
| unsigned long flags; | |
| /* Check the device has not disconnected between prep and queuing */ | |
| if (!dev->udev) { | |
| vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); | |
| return; | |
| } | |
| spin_lock_irqsave(&dev->queued_bufs_lock, flags); | |
| list_add_tail(&buf->list, &dev->queued_bufs); | |
| spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); | |
| } | |
| static int rtl2832_sdr_set_adc(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
| struct dvb_frontend *fe = pdata->dvb_frontend; | |
| int ret; | |
| unsigned int f_sr, f_if; | |
| u8 buf[4], u8tmp1, u8tmp2; | |
| u64 u64tmp; | |
| u32 u32tmp; | |
| dev_dbg(&pdev->dev, "f_adc=%u\n", dev->f_adc); | |
| if (!test_bit(POWER_ON, &dev->flags)) | |
| return 0; | |
| if (dev->f_adc == 0) | |
| return 0; | |
| f_sr = dev->f_adc; | |
| ret = regmap_bulk_write(dev->regmap, 0x13e, "\x00\x00", 2); | |
| if (ret) | |
| goto err; | |
| ret = regmap_bulk_write(dev->regmap, 0x115, "\x00\x00\x00\x00", 4); | |
| if (ret) | |
| goto err; | |
| /* get IF from tuner */ | |
| if (fe->ops.tuner_ops.get_if_frequency) | |
| ret = fe->ops.tuner_ops.get_if_frequency(fe, &f_if); | |
| else | |
| ret = -EINVAL; | |
| if (ret) | |
| goto err; | |
| /* program IF */ | |
| u64tmp = f_if % pdata->clk; | |
| u64tmp *= 0x400000; | |
| u64tmp = div_u64(u64tmp, pdata->clk); | |
| u64tmp = -u64tmp; | |
| u32tmp = u64tmp & 0x3fffff; | |
| dev_dbg(&pdev->dev, "f_if=%u if_ctl=%08x\n", f_if, u32tmp); | |
| buf[0] = (u32tmp >> 16) & 0xff; | |
| buf[1] = (u32tmp >> 8) & 0xff; | |
| buf[2] = (u32tmp >> 0) & 0xff; | |
| ret = regmap_bulk_write(dev->regmap, 0x119, buf, 3); | |
| if (ret) | |
| goto err; | |
| /* BB / IF mode */ | |
| /* POR: 0x1b1=0x1f, 0x008=0x0d, 0x006=0x80 */ | |
| if (f_if) { | |
| u8tmp1 = 0x1a; /* disable Zero-IF */ | |
| u8tmp2 = 0x8d; /* enable ADC I */ | |
| } else { | |
| u8tmp1 = 0x1b; /* enable Zero-IF, DC, IQ */ | |
| u8tmp2 = 0xcd; /* enable ADC I, ADC Q */ | |
| } | |
| ret = regmap_write(dev->regmap, 0x1b1, u8tmp1); | |
| if (ret) | |
| goto err; | |
| ret = regmap_write(dev->regmap, 0x008, u8tmp2); | |
| if (ret) | |
| goto err; | |
| ret = regmap_write(dev->regmap, 0x006, 0x80); | |
| if (ret) | |
| goto err; | |
| /* program sampling rate (resampling down) */ | |
| u32tmp = div_u64(pdata->clk * 0x400000ULL, f_sr * 4U); | |
| u32tmp <<= 2; | |
| buf[0] = (u32tmp >> 24) & 0xff; | |
| buf[1] = (u32tmp >> 16) & 0xff; | |
| buf[2] = (u32tmp >> 8) & 0xff; | |
| buf[3] = (u32tmp >> 0) & 0xff; | |
| ret = regmap_bulk_write(dev->regmap, 0x19f, buf, 4); | |
| if (ret) | |
| goto err; | |
| /* low-pass filter */ | |
| ret = regmap_bulk_write(dev->regmap, 0x11c, | |
| "\xca\xdc\xd7\xd8\xe0\xf2\x0e\x35\x06\x50\x9c\x0d\x71\x11\x14\x71\x74\x19\x41\xa5", | |
| 20); | |
| if (ret) | |
| goto err; | |
| ret = regmap_bulk_write(dev->regmap, 0x017, "\x11\x10", 2); | |
| if (ret) | |
| goto err; | |
| /* mode */ | |
| ret = regmap_write(dev->regmap, 0x019, 0x05); | |
| if (ret) | |
| goto err; | |
| ret = regmap_bulk_write(dev->regmap, 0x01a, | |
| "\x1b\x16\x0d\x06\x01\xff", 6); | |
| if (ret) | |
| goto err; | |
| /* FSM */ | |
| ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\xf0\x0f", 3); | |
| if (ret) | |
| goto err; | |
| /* PID filter */ | |
| ret = regmap_write(dev->regmap, 0x061, 0x60); | |
| if (ret) | |
| goto err; | |
| /* used RF tuner based settings */ | |
| switch (pdata->tuner) { | |
| case RTL2832_SDR_TUNER_E4000: | |
| ret = regmap_write(dev->regmap, 0x112, 0x5a); | |
| ret = regmap_write(dev->regmap, 0x102, 0x40); | |
| ret = regmap_write(dev->regmap, 0x103, 0x5a); | |
| ret = regmap_write(dev->regmap, 0x1c7, 0x30); | |
| ret = regmap_write(dev->regmap, 0x104, 0xd0); | |
| ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
| ret = regmap_write(dev->regmap, 0x1c8, 0x18); | |
| ret = regmap_write(dev->regmap, 0x106, 0x35); | |
| ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
| ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
| ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
| ret = regmap_write(dev->regmap, 0x107, 0x40); | |
| ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
| ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
| ret = regmap_write(dev->regmap, 0x108, 0x80); | |
| ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
| ret = regmap_write(dev->regmap, 0x10a, 0x80); | |
| ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
| ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
| ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
| ret = regmap_write(dev->regmap, 0x011, 0xd4); | |
| ret = regmap_write(dev->regmap, 0x1e5, 0xf0); | |
| ret = regmap_write(dev->regmap, 0x1d9, 0x00); | |
| ret = regmap_write(dev->regmap, 0x1db, 0x00); | |
| ret = regmap_write(dev->regmap, 0x1dd, 0x14); | |
| ret = regmap_write(dev->regmap, 0x1de, 0xec); | |
| ret = regmap_write(dev->regmap, 0x1d8, 0x0c); | |
| ret = regmap_write(dev->regmap, 0x1e6, 0x02); | |
| ret = regmap_write(dev->regmap, 0x1d7, 0x09); | |
| ret = regmap_write(dev->regmap, 0x00d, 0x83); | |
| ret = regmap_write(dev->regmap, 0x010, 0x49); | |
| ret = regmap_write(dev->regmap, 0x00d, 0x87); | |
| ret = regmap_write(dev->regmap, 0x00d, 0x85); | |
| ret = regmap_write(dev->regmap, 0x013, 0x02); | |
| break; | |
| case RTL2832_SDR_TUNER_FC0012: | |
| case RTL2832_SDR_TUNER_FC0013: | |
| ret = regmap_write(dev->regmap, 0x112, 0x5a); | |
| ret = regmap_write(dev->regmap, 0x102, 0x40); | |
| ret = regmap_write(dev->regmap, 0x103, 0x5a); | |
| ret = regmap_write(dev->regmap, 0x1c7, 0x2c); | |
| ret = regmap_write(dev->regmap, 0x104, 0xcc); | |
| ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
| ret = regmap_write(dev->regmap, 0x1c8, 0x16); | |
| ret = regmap_write(dev->regmap, 0x106, 0x35); | |
| ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
| ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
| ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
| ret = regmap_write(dev->regmap, 0x107, 0x40); | |
| ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
| ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
| ret = regmap_write(dev->regmap, 0x108, 0x80); | |
| ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
| ret = regmap_write(dev->regmap, 0x10a, 0x80); | |
| ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
| ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
| ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
| ret = regmap_bulk_write(dev->regmap, 0x011, "\xe9\xbf", 2); | |
| ret = regmap_write(dev->regmap, 0x1e5, 0xf0); | |
| ret = regmap_write(dev->regmap, 0x1d9, 0x00); | |
| ret = regmap_write(dev->regmap, 0x1db, 0x00); | |
| ret = regmap_write(dev->regmap, 0x1dd, 0x11); | |
| ret = regmap_write(dev->regmap, 0x1de, 0xef); | |
| ret = regmap_write(dev->regmap, 0x1d8, 0x0c); | |
| ret = regmap_write(dev->regmap, 0x1e6, 0x02); | |
| ret = regmap_write(dev->regmap, 0x1d7, 0x09); | |
| break; | |
| case RTL2832_SDR_TUNER_R820T: | |
| case RTL2832_SDR_TUNER_R828D: | |
| ret = regmap_write(dev->regmap, 0x112, 0x5a); | |
| ret = regmap_write(dev->regmap, 0x102, 0x40); | |
| ret = regmap_write(dev->regmap, 0x115, 0x01); | |
| ret = regmap_write(dev->regmap, 0x103, 0x80); | |
| ret = regmap_write(dev->regmap, 0x1c7, 0x24); | |
| ret = regmap_write(dev->regmap, 0x104, 0xcc); | |
| ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
| ret = regmap_write(dev->regmap, 0x1c8, 0x14); | |
| ret = regmap_write(dev->regmap, 0x106, 0x35); | |
| ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
| ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
| ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
| ret = regmap_write(dev->regmap, 0x107, 0x40); | |
| ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
| ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
| ret = regmap_write(dev->regmap, 0x108, 0x80); | |
| ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
| ret = regmap_write(dev->regmap, 0x10a, 0x80); | |
| ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
| ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
| ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
| ret = regmap_write(dev->regmap, 0x011, 0xf4); | |
| break; | |
| case RTL2832_SDR_TUNER_FC2580: | |
| ret = regmap_write(dev->regmap, 0x112, 0x39); | |
| ret = regmap_write(dev->regmap, 0x102, 0x40); | |
| ret = regmap_write(dev->regmap, 0x103, 0x5a); | |
| ret = regmap_write(dev->regmap, 0x1c7, 0x2c); | |
| ret = regmap_write(dev->regmap, 0x104, 0xcc); | |
| ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
| ret = regmap_write(dev->regmap, 0x1c8, 0x16); | |
| ret = regmap_write(dev->regmap, 0x106, 0x35); | |
| ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
| ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
| ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
| ret = regmap_write(dev->regmap, 0x107, 0x40); | |
| ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
| ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
| ret = regmap_write(dev->regmap, 0x108, 0x80); | |
| ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
| ret = regmap_write(dev->regmap, 0x10a, 0x9c); | |
| ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
| ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
| ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
| ret = regmap_bulk_write(dev->regmap, 0x011, "\xe9\xf4", 2); | |
| break; | |
| default: | |
| dev_notice(&pdev->dev, "Unsupported tuner\n"); | |
| } | |
| /* software reset */ | |
| ret = regmap_update_bits(dev->regmap, 0x101, 0x04, 0x04); | |
| if (ret) | |
| goto err; | |
| ret = regmap_update_bits(dev->regmap, 0x101, 0x04, 0x00); | |
| if (ret) | |
| goto err; | |
| err: | |
| return ret; | |
| }; | |
| static void rtl2832_sdr_unset_adc(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| int ret; | |
| dev_dbg(&pdev->dev, "\n"); | |
| /* PID filter */ | |
| ret = regmap_write(dev->regmap, 0x061, 0xe0); | |
| if (ret) | |
| goto err; | |
| /* mode */ | |
| ret = regmap_write(dev->regmap, 0x019, 0x20); | |
| if (ret) | |
| goto err; | |
| ret = regmap_bulk_write(dev->regmap, 0x017, "\x11\x10", 2); | |
| if (ret) | |
| goto err; | |
| /* FSM */ | |
| ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\x0f\xff", 3); | |
| if (ret) | |
| goto err; | |
| ret = regmap_bulk_write(dev->regmap, 0x13e, "\x40\x00", 2); | |
| if (ret) | |
| goto err; | |
| ret = regmap_bulk_write(dev->regmap, 0x115, "\x06\x3f\xce\xcc", 4); | |
| if (ret) | |
| goto err; | |
| err: | |
| return; | |
| }; | |
| static int rtl2832_sdr_set_tuner_freq(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
| struct dvb_frontend *fe = pdata->dvb_frontend; | |
| struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
| struct v4l2_ctrl *bandwidth_auto; | |
| struct v4l2_ctrl *bandwidth; | |
| /* | |
| * tuner RF (Hz) | |
| */ | |
| if (dev->f_tuner == 0) | |
| return 0; | |
| /* | |
| * bandwidth (Hz) | |
| */ | |
| bandwidth_auto = v4l2_ctrl_find(&dev->hdl, | |
| V4L2_CID_RF_TUNER_BANDWIDTH_AUTO); | |
| bandwidth = v4l2_ctrl_find(&dev->hdl, V4L2_CID_RF_TUNER_BANDWIDTH); | |
| if (v4l2_ctrl_g_ctrl(bandwidth_auto)) { | |
| c->bandwidth_hz = dev->f_adc; | |
| v4l2_ctrl_s_ctrl(bandwidth, dev->f_adc); | |
| } else { | |
| c->bandwidth_hz = v4l2_ctrl_g_ctrl(bandwidth); | |
| } | |
| c->frequency = dev->f_tuner; | |
| c->delivery_system = SYS_DVBT; | |
| dev_dbg(&pdev->dev, "frequency=%u bandwidth=%d\n", | |
| c->frequency, c->bandwidth_hz); | |
| if (!test_bit(POWER_ON, &dev->flags)) | |
| return 0; | |
| if (!V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_frequency)) { | |
| if (fe->ops.tuner_ops.set_params) | |
| fe->ops.tuner_ops.set_params(fe); | |
| } | |
| return 0; | |
| }; | |
| static int rtl2832_sdr_set_tuner(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
| struct dvb_frontend *fe = pdata->dvb_frontend; | |
| dev_dbg(&pdev->dev, "\n"); | |
| if (fe->ops.tuner_ops.init) | |
| fe->ops.tuner_ops.init(fe); | |
| return 0; | |
| }; | |
| static void rtl2832_sdr_unset_tuner(struct rtl2832_sdr_dev *dev) | |
| { | |
| struct platform_device *pdev = dev->pdev; | |
| struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
| struct dvb_frontend *fe = pdata->dvb_frontend; | |
| dev_dbg(&pdev->dev, "\n"); | |
| if (fe->ops.tuner_ops.sleep) | |
| fe->ops.tuner_ops.sleep(fe); | |
| return; | |
| }; | |
| static int rtl2832_sdr_start_streaming(struct vb2_queue *vq, unsigned int count) | |
| { | |
| struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); | |
| struct platform_device *pdev = dev->pdev; | |
| struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
| struct dvb_usb_device *d = pdata->dvb_usb_device; | |
| int ret; | |
| dev_dbg(&pdev->dev, "\n"); | |
| if (!dev->udev) | |
| return -ENODEV; | |
| if (mutex_lock_interruptible(&dev->v4l2_lock)) | |
| return -ERESTARTSYS; | |
| if (d->props->power_ctrl) | |
| d->props->power_ctrl(d, 1); | |
| /* enable ADC */ | |
| if (d->props->frontend_ctrl) | |
| d->props->frontend_ctrl(pdata->dvb_frontend, 1); | |
| set_bit(POWER_ON, &dev->flags); | |
| /* wake-up tuner */ | |
| if (V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, core, s_power)) | |
| ret = v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 1); | |
| else | |
| ret = rtl2832_sdr_set_tuner(dev); | |
| if (ret) | |
| goto err; | |
| ret = rtl2832_sdr_set_tuner_freq(dev); | |
| if (ret) | |
| goto err; | |
| ret = rtl2832_sdr_set_adc(dev); | |
| if (ret) | |
| goto err; | |
| ret = rtl2832_sdr_alloc_stream_bufs(dev); | |
| if (ret) | |
| goto err; | |
| ret = rtl2832_sdr_alloc_urbs(dev); | |
| if (ret) | |
| goto err; | |
| dev->sequence = 0; | |
| ret = rtl2832_sdr_submit_urbs(dev); | |
| if (ret) | |
| goto err; | |
| err: | |
| mutex_unlock(&dev->v4l2_lock); | |
| return ret; | |
| } | |
| static void rtl2832_sdr_stop_streaming(struct vb2_queue *vq) | |
| { | |
| struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); | |
| struct platform_device *pdev = dev->pdev; | |
| struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
| struct dvb_usb_device *d = pdata->dvb_usb_device; | |
| dev_dbg(&pdev->dev, "\n"); | |
| mutex_lock(&dev->v4l2_lock); | |
| rtl2832_sdr_kill_urbs(dev); | |
| rtl2832_sdr_free_urbs(dev); | |
| rtl2832_sdr_free_stream_bufs(dev); | |
| rtl2832_sdr_cleanup_queued_bufs(dev); | |
| rtl2832_sdr_unset_adc(dev); | |
| /* sleep tuner */ | |
| if (V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, core, s_power)) | |
| v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 0); | |
| else | |
| rtl2832_sdr_unset_tuner(dev); | |
| clear_bit(POWER_ON, &dev->flags); | |
| /* disable ADC */ | |
| if (d->props->frontend_ctrl) | |
| d->props->frontend_ctrl(pdata->dvb_frontend, 0); | |
| if (d->props->power_ctrl) | |
| d->props->power_ctrl(d, 0); | |
| mutex_unlock(&dev->v4l2_lock); | |
| } | |
| static const struct vb2_ops rtl2832_sdr_vb2_ops = { | |
| .queue_setup = rtl2832_sdr_queue_setup, | |
| .buf_prepare = rtl2832_sdr_buf_prepare, | |
| .buf_queue = rtl2832_sdr_buf_queue, | |
| .start_streaming = rtl2832_sdr_start_streaming, | |
| .stop_streaming = rtl2832_sdr_stop_streaming, | |
| .wait_prepare = vb2_ops_wait_prepare, | |
| .wait_finish = vb2_ops_wait_finish, | |
| }; | |
| static int rtl2832_sdr_g_tuner(struct file *file, void *priv, | |
| struct v4l2_tuner *v) | |
| { | |
| struct rtl2832_sdr_dev *dev = video_drvdata(file); | |
| struct platform_device *pdev = dev->pdev; | |
| int ret; | |
| dev_dbg(&pdev->dev, "index=%d type=%d\n", v->index, v->type); | |
| if (v->index == 0) { | |
| strlcpy(v->name, "ADC: Realtek RTL2832", sizeof(v->name)); | |
| v->type = V4L2_TUNER_ADC; | |
| v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
| v->rangelow = 300000; | |
| v->rangehigh = 3200000; | |
| ret = 0; | |
| } else if (v->index == 1 && | |
| V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, g_tuner)) { | |
| ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_tuner, v); | |
| } else if (v->index == 1) { | |
| strlcpy(v->name, "RF: <unknown>", sizeof(v->name)); | |
| v->type = V4L2_TUNER_RF; | |
| v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
| v->rangelow = 50000000; | |
| v->rangehigh = 2000000000; | |
| ret = 0; | |
| } else { | |
| ret = -EINVAL; | |
| } | |
| return ret; | |
| } | |
| static int rtl2832_sdr_s_tuner(struct file *file, void *priv, | |
| const struct v4l2_tuner *v) | |
| { | |
| struct rtl2832_sdr_dev *dev = video_drvdata(file); | |
| struct platform_device *pdev = dev->pdev; | |
| int ret; | |
| dev_dbg(&pdev->dev, "\n"); | |
| if (v->index == 0) { | |
| ret = 0; | |
| } else if (v->index == 1 && | |
| V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_tuner)) { | |
| ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_tuner, v); | |
| } else if (v->index == 1) { | |
| ret = 0; | |
| } else { | |
| ret = -EINVAL; | |
| } | |
| return ret; | |
| } | |
| static int rtl2832_sdr_enum_freq_bands(struct file *file, void *priv, | |
| struct v4l2_frequency_band *band) | |
| { | |
| struct rtl2832_sdr_dev *dev = video_drvdata(file); | |
| struct platform_device *pdev = dev->pdev; | |
| int ret; | |
| dev_dbg(&pdev->dev, "tuner=%d type=%d index=%d\n", | |
| band->tuner, band->type, band->index); | |
| if (band->tuner == 0) { | |
| if (band->index >= ARRAY_SIZE(bands_adc)) | |
| return -EINVAL; | |
| *band = bands_adc[band->index]; | |
| ret = 0; | |
| } else if (band->tuner == 1 && | |
| V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, enum_freq_bands)) { | |
| ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, enum_freq_bands, band); | |
| } else if (band->tuner == 1) { | |
| if (band->index >= ARRAY_SIZE(bands_fm)) | |
| return -EINVAL; | |
| *band = bands_fm[band->index]; | |
| ret = 0; | |
| } else { | |
| ret = -EINVAL; | |
| } | |
| return ret; | |
| } | |
| static int rtl2832_sdr_g_frequency(struct file *file, void *priv, | |
| struct v4l2_frequency *f) | |
| { | |
| struct rtl2832_sdr_dev *dev = video_drvdata(file); | |
| struct platform_device *pdev = dev->pdev; | |
| int ret; | |
| dev_dbg(&pdev->dev, "tuner=%d type=%d\n", f->tuner, f->type); | |
| if (f->tuner == 0) { | |
| f->frequency = dev->f_adc; | |
| f->type = V4L2_TUNER_ADC; | |
| ret = 0; | |
| } else if (f->tuner == 1 && | |
| V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, g_frequency)) { | |
| f->type = V4L2_TUNER_RF; | |
| ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_frequency, f); | |
| } else if (f->tuner == 1) { | |
| f->frequency = dev->f_tuner; | |
| f->type = V4L2_TUNER_RF; | |
| ret = 0; | |
| } else { | |
| ret = -EINVAL; | |
| } | |
| return ret; | |
| } | |
| static int rtl2832_sdr_s_frequency(struct file *file, void *priv, | |
| const struct v4l2_frequency *f) | |
| { | |
| struct rtl2832_sdr_dev *dev = video_drvdata(file); | |
| struct platform_device *pdev = dev->pdev; | |
| int ret, band; | |
| dev_dbg(&pdev->dev, "tuner=%d type=%d frequency=%u\n", | |
| f->tuner, f->type, f->frequency); | |
| /* ADC band midpoints */ | |
| #define BAND_ADC_0 ((bands_adc[0].rangehigh + bands_adc[1].rangelow) / 2) | |
| #define BAND_ADC_1 ((bands_adc[1].rangehigh + bands_adc[2].rangelow) / 2) | |
| if (f->tuner == 0 && f->type == V4L2_TUNER_ADC) { | |
| if (f->frequency < BAND_ADC_0) | |
| band = 0; | |
| else if (f->frequency < BAND_ADC_1) | |
| band = 1; | |
| else | |
| band = 2; | |
| dev->f_adc = clamp_t(unsigned int, f->frequency, | |
| bands_adc[band].rangelow, | |
| bands_adc[band].rangehigh); | |
| dev_dbg(&pdev->dev, "ADC frequency=%u Hz\n", dev->f_adc); | |
| ret = rtl2832_sdr_set_adc(dev); | |
| } else if (f->tuner == 1 && | |
| V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_frequency)) { | |
| ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_frequency, f); | |
| } else if (f->tuner == 1) { | |
| dev->f_tuner = clamp_t(unsigned int, f->frequency, | |
| bands_fm[0].rangelow, | |
| bands_fm[0].rangehigh); | |
| dev_dbg(&pdev->dev, "RF frequency=%u Hz\n", f->frequency); | |
| ret = rtl2832_sdr_set_tuner_freq(dev); | |
| } else { | |
| ret = -EINVAL; | |
| } | |
| return ret; | |
| } | |
| static int rtl2832_sdr_enum_fmt_sdr_cap(struct file *file, void *priv, | |
| struct v4l2_fmtdesc *f) | |
| { | |
| struct rtl2832_sdr_dev *dev = video_drvdata(file); | |
| struct platform_device *pdev = dev->pdev; | |
| dev_dbg(&pdev->dev, "\n"); | |
| if (f->index >= dev->num_formats) | |
| return -EINVAL; | |
| strlcpy(f->description, formats[f->index].name, sizeof(f->description)); | |
| f->pixelformat = formats[f->index].pixelformat; | |
| return 0; | |
| } | |
| static int rtl2832_sdr_g_fmt_sdr_cap(struct file *file, void *priv, | |
| struct v4l2_format *f) | |
| { | |
| struct rtl2832_sdr_dev *dev = video_drvdata(file); | |
| struct platform_device *pdev = dev->pdev; | |
| dev_dbg(&pdev->dev, "\n"); | |
| f->fmt.sdr.pixelformat = dev->pixelformat; | |
| f->fmt.sdr.buffersize = dev->buffersize; | |
| memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); | |
| return 0; | |
| } | |
| static int rtl2832_sdr_s_fmt_sdr_cap(struct file *file, void *priv, | |
| struct v4l2_format *f) | |
| { | |
| struct rtl2832_sdr_dev *dev = video_drvdata(file); | |
| struct platform_device *pdev = dev->pdev; | |
| struct vb2_queue *q = &dev->vb_queue; | |
| int i; | |
| dev_dbg(&pdev->dev, "pixelformat fourcc %4.4s\n", | |
| (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 < dev->num_formats; i++) { | |
| if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { | |
| dev->pixelformat = formats[i].pixelformat; | |
| dev->buffersize = formats[i].buffersize; | |
| f->fmt.sdr.buffersize = formats[i].buffersize; | |
| return 0; | |
| } | |
| } | |
| dev->pixelformat = formats[0].pixelformat; | |
| dev->buffersize = formats[0].buffersize; | |
| f->fmt.sdr.pixelformat = formats[0].pixelformat; | |
| f->fmt.sdr.buffersize = formats[0].buffersize; | |
| return 0; | |
| } | |
| static int rtl2832_sdr_try_fmt_sdr_cap(struct file *file, void *priv, | |
| struct v4l2_format *f) | |
| { | |
| struct rtl2832_sdr_dev *dev = video_drvdata(file); | |
| struct platform_device *pdev = dev->pdev; | |
| int i; | |
| dev_dbg(&pdev->dev, "pixelformat fourcc %4.4s\n", | |
| (char *)&f->fmt.sdr.pixelformat); | |
| memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); | |
| for (i = 0; i < dev->num_formats; i++) { | |
| if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { | |
| f->fmt.sdr.buffersize = formats[i].buffersize; | |
| return 0; | |
| } | |
| } | |
| f->fmt.sdr.pixelformat = formats[0].pixelformat; | |
| f->fmt.sdr.buffersize = formats[0].buffersize; | |
| return 0; | |
| } | |
| static const struct v4l2_ioctl_ops rtl2832_sdr_ioctl_ops = { | |
| .vidioc_querycap = rtl2832_sdr_querycap, | |
| .vidioc_enum_fmt_sdr_cap = rtl2832_sdr_enum_fmt_sdr_cap, | |
| .vidioc_g_fmt_sdr_cap = rtl2832_sdr_g_fmt_sdr_cap, | |
| .vidioc_s_fmt_sdr_cap = rtl2832_sdr_s_fmt_sdr_cap, | |
| .vidioc_try_fmt_sdr_cap = rtl2832_sdr_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 = rtl2832_sdr_g_tuner, | |
| .vidioc_s_tuner = rtl2832_sdr_s_tuner, | |
| .vidioc_enum_freq_bands = rtl2832_sdr_enum_freq_bands, | |
| .vidioc_g_frequency = rtl2832_sdr_g_frequency, | |
| .vidioc_s_frequency = rtl2832_sdr_s_frequency, | |
| .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 rtl2832_sdr_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 rtl2832_sdr_template = { | |
| .name = "Realtek RTL2832 SDR", | |
| .release = video_device_release_empty, | |
| .fops = &rtl2832_sdr_fops, | |
| .ioctl_ops = &rtl2832_sdr_ioctl_ops, | |
| }; | |
| static int rtl2832_sdr_s_ctrl(struct v4l2_ctrl *ctrl) | |
| { | |
| struct rtl2832_sdr_dev *dev = | |
| container_of(ctrl->handler, struct rtl2832_sdr_dev, | |
| hdl); | |
| struct platform_device *pdev = dev->pdev; | |
| struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
| struct dvb_frontend *fe = pdata->dvb_frontend; | |
| struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
| int ret; | |
| dev_dbg(&pdev->dev, "id=%d name=%s val=%d min=%lld max=%lld step=%lld\n", | |
| ctrl->id, ctrl->name, ctrl->val, ctrl->minimum, ctrl->maximum, | |
| ctrl->step); | |
| switch (ctrl->id) { | |
| case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: | |
| case V4L2_CID_RF_TUNER_BANDWIDTH: | |
| /* TODO: these controls should be moved to tuner drivers */ | |
| if (dev->bandwidth_auto->val) { | |
| /* Round towards the closest legal value */ | |
| s32 val = dev->f_adc + div_u64(dev->bandwidth->step, 2); | |
| u32 offset; | |
| val = clamp_t(s32, val, dev->bandwidth->minimum, | |
| dev->bandwidth->maximum); | |
| offset = val - dev->bandwidth->minimum; | |
| offset = dev->bandwidth->step * | |
| div_u64(offset, dev->bandwidth->step); | |
| dev->bandwidth->val = dev->bandwidth->minimum + offset; | |
| } | |
| c->bandwidth_hz = dev->bandwidth->val; | |
| if (!test_bit(POWER_ON, &dev->flags)) | |
| return 0; | |
| if (fe->ops.tuner_ops.set_params) | |
| ret = fe->ops.tuner_ops.set_params(fe); | |
| else | |
| ret = 0; | |
| break; | |
| default: | |
| ret = -EINVAL; | |
| } | |
| return ret; | |
| } | |
| static const struct v4l2_ctrl_ops rtl2832_sdr_ctrl_ops = { | |
| .s_ctrl = rtl2832_sdr_s_ctrl, | |
| }; | |
| static void rtl2832_sdr_video_release(struct v4l2_device *v) | |
| { | |
| struct rtl2832_sdr_dev *dev = | |
| container_of(v, struct rtl2832_sdr_dev, v4l2_dev); | |
| struct platform_device *pdev = dev->pdev; | |
| dev_dbg(&pdev->dev, "\n"); | |
| v4l2_ctrl_handler_free(&dev->hdl); | |
| v4l2_device_unregister(&dev->v4l2_dev); | |
| kfree(dev); | |
| } | |
| /* Platform driver interface */ | |
| static int rtl2832_sdr_probe(struct platform_device *pdev) | |
| { | |
| struct rtl2832_sdr_dev *dev; | |
| struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
| const struct v4l2_ctrl_ops *ops = &rtl2832_sdr_ctrl_ops; | |
| struct v4l2_subdev *subdev; | |
| int ret; | |
| dev_dbg(&pdev->dev, "\n"); | |
| if (!pdata) { | |
| dev_err(&pdev->dev, "Cannot proceed without platform data\n"); | |
| ret = -EINVAL; | |
| goto err; | |
| } | |
| if (!pdev->dev.parent->driver) { | |
| dev_dbg(&pdev->dev, "No parent device\n"); | |
| ret = -EINVAL; | |
| goto err; | |
| } | |
| /* try to refcount host drv since we are the consumer */ | |
| if (!try_module_get(pdev->dev.parent->driver->owner)) { | |
| dev_err(&pdev->dev, "Refcount fail"); | |
| ret = -EINVAL; | |
| goto err; | |
| } | |
| dev = kzalloc(sizeof(*dev), GFP_KERNEL); | |
| if (dev == NULL) { | |
| ret = -ENOMEM; | |
| goto err_module_put; | |
| } | |
| /* setup the state */ | |
| subdev = pdata->v4l2_subdev; | |
| dev->v4l2_subdev = pdata->v4l2_subdev; | |
| dev->pdev = pdev; | |
| dev->regmap = pdata->regmap; | |
| dev->udev = pdata->dvb_usb_device->udev; | |
| dev->f_adc = bands_adc[0].rangelow; | |
| dev->f_tuner = bands_fm[0].rangelow; | |
| dev->pixelformat = formats[0].pixelformat; | |
| dev->buffersize = formats[0].buffersize; | |
| dev->num_formats = NUM_FORMATS; | |
| if (!rtl2832_sdr_emulated_fmt) | |
| dev->num_formats -= 1; | |
| mutex_init(&dev->v4l2_lock); | |
| mutex_init(&dev->vb_queue_lock); | |
| spin_lock_init(&dev->queued_bufs_lock); | |
| INIT_LIST_HEAD(&dev->queued_bufs); | |
| /* Init videobuf2 queue structure */ | |
| dev->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; | |
| dev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; | |
| dev->vb_queue.drv_priv = dev; | |
| dev->vb_queue.buf_struct_size = sizeof(struct rtl2832_sdr_frame_buf); | |
| dev->vb_queue.ops = &rtl2832_sdr_vb2_ops; | |
| dev->vb_queue.mem_ops = &vb2_vmalloc_memops; | |
| dev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; | |
| ret = vb2_queue_init(&dev->vb_queue); | |
| if (ret) { | |
| dev_err(&pdev->dev, "Could not initialize vb2 queue\n"); | |
| goto err_kfree; | |
| } | |
| /* Register controls */ | |
| switch (pdata->tuner) { | |
| case RTL2832_SDR_TUNER_E4000: | |
| v4l2_ctrl_handler_init(&dev->hdl, 9); | |
| if (subdev) | |
| v4l2_ctrl_add_handler(&dev->hdl, subdev->ctrl_handler, NULL); | |
| break; | |
| case RTL2832_SDR_TUNER_R820T: | |
| case RTL2832_SDR_TUNER_R828D: | |
| v4l2_ctrl_handler_init(&dev->hdl, 2); | |
| dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, ops, | |
| V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, | |
| 0, 1, 1, 1); | |
| dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, ops, | |
| V4L2_CID_RF_TUNER_BANDWIDTH, | |
| 0, 8000000, 100000, 0); | |
| v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false); | |
| break; | |
| case RTL2832_SDR_TUNER_FC0012: | |
| case RTL2832_SDR_TUNER_FC0013: | |
| v4l2_ctrl_handler_init(&dev->hdl, 2); | |
| dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, ops, | |
| V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, | |
| 0, 1, 1, 1); | |
| dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, ops, | |
| V4L2_CID_RF_TUNER_BANDWIDTH, | |
| 6000000, 8000000, 1000000, | |
| 6000000); | |
| v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false); | |
| break; | |
| case RTL2832_SDR_TUNER_FC2580: | |
| v4l2_ctrl_handler_init(&dev->hdl, 2); | |
| if (subdev) | |
| v4l2_ctrl_add_handler(&dev->hdl, subdev->ctrl_handler, | |
| NULL); | |
| break; | |
| default: | |
| v4l2_ctrl_handler_init(&dev->hdl, 0); | |
| dev_err(&pdev->dev, "Unsupported tuner\n"); | |
| goto err_v4l2_ctrl_handler_free; | |
| } | |
| if (dev->hdl.error) { | |
| ret = dev->hdl.error; | |
| dev_err(&pdev->dev, "Could not initialize controls\n"); | |
| goto err_v4l2_ctrl_handler_free; | |
| } | |
| /* Init video_device structure */ | |
| dev->vdev = rtl2832_sdr_template; | |
| dev->vdev.queue = &dev->vb_queue; | |
| dev->vdev.queue->lock = &dev->vb_queue_lock; | |
| video_set_drvdata(&dev->vdev, dev); | |
| /* Register the v4l2_device structure */ | |
| dev->v4l2_dev.release = rtl2832_sdr_video_release; | |
| ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); | |
| if (ret) { | |
| dev_err(&pdev->dev, "Failed to register v4l2-device %d\n", ret); | |
| goto err_v4l2_ctrl_handler_free; | |
| } | |
| dev->v4l2_dev.ctrl_handler = &dev->hdl; | |
| dev->vdev.v4l2_dev = &dev->v4l2_dev; | |
| dev->vdev.lock = &dev->v4l2_lock; | |
| dev->vdev.vfl_dir = VFL_DIR_RX; | |
| ret = video_register_device(&dev->vdev, VFL_TYPE_SDR, -1); | |
| if (ret) { | |
| dev_err(&pdev->dev, "Failed to register as video device %d\n", | |
| ret); | |
| goto err_v4l2_device_unregister; | |
| } | |
| dev_info(&pdev->dev, "Registered as %s\n", | |
| video_device_node_name(&dev->vdev)); | |
| dev_info(&pdev->dev, "Realtek RTL2832 SDR attached\n"); | |
| dev_notice(&pdev->dev, | |
| "SDR API is still slightly experimental and functionality changes may follow\n"); | |
| platform_set_drvdata(pdev, dev); | |
| return 0; | |
| err_v4l2_device_unregister: | |
| v4l2_device_unregister(&dev->v4l2_dev); | |
| err_v4l2_ctrl_handler_free: | |
| v4l2_ctrl_handler_free(&dev->hdl); | |
| err_kfree: | |
| kfree(dev); | |
| err_module_put: | |
| module_put(pdev->dev.parent->driver->owner); | |
| err: | |
| return ret; | |
| } | |
| static int rtl2832_sdr_remove(struct platform_device *pdev) | |
| { | |
| struct rtl2832_sdr_dev *dev = platform_get_drvdata(pdev); | |
| dev_dbg(&pdev->dev, "\n"); | |
| mutex_lock(&dev->vb_queue_lock); | |
| mutex_lock(&dev->v4l2_lock); | |
| /* No need to keep the urbs around after disconnection */ | |
| dev->udev = NULL; | |
| v4l2_device_disconnect(&dev->v4l2_dev); | |
| video_unregister_device(&dev->vdev); | |
| mutex_unlock(&dev->v4l2_lock); | |
| mutex_unlock(&dev->vb_queue_lock); | |
| v4l2_device_put(&dev->v4l2_dev); | |
| module_put(pdev->dev.parent->driver->owner); | |
| return 0; | |
| } | |
| static struct platform_driver rtl2832_sdr_driver = { | |
| .driver = { | |
| .name = "rtl2832_sdr", | |
| }, | |
| .probe = rtl2832_sdr_probe, | |
| .remove = rtl2832_sdr_remove, | |
| }; | |
| module_platform_driver(rtl2832_sdr_driver); | |
| MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
| MODULE_DESCRIPTION("Realtek RTL2832 SDR driver"); | |
| MODULE_LICENSE("GPL"); |