116216333SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later
277bbb2b0SAntti Palosaari /*
377bbb2b0SAntti Palosaari * Realtek RTL2832U SDR driver
477bbb2b0SAntti Palosaari *
577bbb2b0SAntti Palosaari * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
677bbb2b0SAntti Palosaari *
777bbb2b0SAntti Palosaari * GNU Radio plugin "gr-kernel" for device usage will be on:
8e6e059a8SAlexander A. Klimov * https://git.linuxtv.org/anttip/gr-kernel.git
977bbb2b0SAntti Palosaari */
1077bbb2b0SAntti Palosaari
1177bbb2b0SAntti Palosaari #include "rtl2832_sdr.h"
1277bbb2b0SAntti Palosaari #include "dvb_usb.h"
1377bbb2b0SAntti Palosaari
1477bbb2b0SAntti Palosaari #include <media/v4l2-device.h>
1577bbb2b0SAntti Palosaari #include <media/v4l2-ioctl.h>
1677bbb2b0SAntti Palosaari #include <media/v4l2-ctrls.h>
1777bbb2b0SAntti Palosaari #include <media/v4l2-event.h>
182d700715SJunghak Sung #include <media/videobuf2-v4l2.h>
1977bbb2b0SAntti Palosaari #include <media/videobuf2-vmalloc.h>
2077bbb2b0SAntti Palosaari
2163bdab5dSAntti Palosaari #include <linux/platform_device.h>
2277bbb2b0SAntti Palosaari #include <linux/jiffies.h>
2377bbb2b0SAntti Palosaari #include <linux/math64.h>
241cf79db2SPeter Rosin #include <linux/regmap.h>
2577bbb2b0SAntti Palosaari
262970c0d5SAntti Palosaari static bool rtl2832_sdr_emulated_fmt;
272970c0d5SAntti Palosaari module_param_named(emulated_formats, rtl2832_sdr_emulated_fmt, bool, 0644);
282970c0d5SAntti Palosaari MODULE_PARM_DESC(emulated_formats, "enable emulated formats (disappears in future)");
292970c0d5SAntti Palosaari
30fc3a0497SAntti Palosaari /* Original macro does not contain enough null pointer checks for our need */
31fc3a0497SAntti Palosaari #define V4L2_SUBDEV_HAS_OP(sd, o, f) \
32fc3a0497SAntti Palosaari ((sd) && (sd)->ops && (sd)->ops->o && (sd)->ops->o->f)
33fc3a0497SAntti Palosaari
3477bbb2b0SAntti Palosaari #define MAX_BULK_BUFS (10)
3577bbb2b0SAntti Palosaari #define BULK_BUFFER_SIZE (128 * 512)
3677bbb2b0SAntti Palosaari
3777bbb2b0SAntti Palosaari static const struct v4l2_frequency_band bands_adc[] = {
3877bbb2b0SAntti Palosaari {
3977bbb2b0SAntti Palosaari .tuner = 0,
4077bbb2b0SAntti Palosaari .type = V4L2_TUNER_ADC,
4177bbb2b0SAntti Palosaari .index = 0,
4277bbb2b0SAntti Palosaari .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
4377bbb2b0SAntti Palosaari .rangelow = 300000,
4477bbb2b0SAntti Palosaari .rangehigh = 300000,
4577bbb2b0SAntti Palosaari },
4677bbb2b0SAntti Palosaari {
4777bbb2b0SAntti Palosaari .tuner = 0,
4877bbb2b0SAntti Palosaari .type = V4L2_TUNER_ADC,
4977bbb2b0SAntti Palosaari .index = 1,
5077bbb2b0SAntti Palosaari .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
5177bbb2b0SAntti Palosaari .rangelow = 900001,
5277bbb2b0SAntti Palosaari .rangehigh = 2800000,
5377bbb2b0SAntti Palosaari },
5477bbb2b0SAntti Palosaari {
5577bbb2b0SAntti Palosaari .tuner = 0,
5677bbb2b0SAntti Palosaari .type = V4L2_TUNER_ADC,
5777bbb2b0SAntti Palosaari .index = 2,
5877bbb2b0SAntti Palosaari .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
5977bbb2b0SAntti Palosaari .rangelow = 3200000,
6077bbb2b0SAntti Palosaari .rangehigh = 3200000,
6177bbb2b0SAntti Palosaari },
6277bbb2b0SAntti Palosaari };
6377bbb2b0SAntti Palosaari
6477bbb2b0SAntti Palosaari static const struct v4l2_frequency_band bands_fm[] = {
6577bbb2b0SAntti Palosaari {
6677bbb2b0SAntti Palosaari .tuner = 1,
6777bbb2b0SAntti Palosaari .type = V4L2_TUNER_RF,
6877bbb2b0SAntti Palosaari .index = 0,
6977bbb2b0SAntti Palosaari .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
7077bbb2b0SAntti Palosaari .rangelow = 50000000,
7177bbb2b0SAntti Palosaari .rangehigh = 2000000000,
7277bbb2b0SAntti Palosaari },
7377bbb2b0SAntti Palosaari };
7477bbb2b0SAntti Palosaari
7577bbb2b0SAntti Palosaari /* stream formats */
7677bbb2b0SAntti Palosaari struct rtl2832_sdr_format {
7777bbb2b0SAntti Palosaari char *name;
7877bbb2b0SAntti Palosaari u32 pixelformat;
79d57fe404SAntti Palosaari u32 buffersize;
8077bbb2b0SAntti Palosaari };
8177bbb2b0SAntti Palosaari
8277bbb2b0SAntti Palosaari static struct rtl2832_sdr_format formats[] = {
8377bbb2b0SAntti Palosaari {
8477bbb2b0SAntti Palosaari .pixelformat = V4L2_SDR_FMT_CU8,
85d57fe404SAntti Palosaari .buffersize = BULK_BUFFER_SIZE,
8677bbb2b0SAntti Palosaari }, {
8777bbb2b0SAntti Palosaari .pixelformat = V4L2_SDR_FMT_CU16LE,
88d57fe404SAntti Palosaari .buffersize = BULK_BUFFER_SIZE * 2,
8977bbb2b0SAntti Palosaari },
9077bbb2b0SAntti Palosaari };
9177bbb2b0SAntti Palosaari
9277bbb2b0SAntti Palosaari static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats);
9377bbb2b0SAntti Palosaari
9477bbb2b0SAntti Palosaari /* intermediate buffers with raw data from the USB device */
9577bbb2b0SAntti Palosaari struct rtl2832_sdr_frame_buf {
962d700715SJunghak Sung /* common v4l buffer stuff -- must be first */
972d700715SJunghak Sung struct vb2_v4l2_buffer vb;
9877bbb2b0SAntti Palosaari struct list_head list;
9977bbb2b0SAntti Palosaari };
10077bbb2b0SAntti Palosaari
101725b7f30SAntti Palosaari struct rtl2832_sdr_dev {
102e4d131d3SDan Carpenter #define POWER_ON 0 /* BIT(0) */
103e4d131d3SDan Carpenter #define URB_BUF 1 /* BIT(1) */
10477bbb2b0SAntti Palosaari unsigned long flags;
10577bbb2b0SAntti Palosaari
10663bdab5dSAntti Palosaari struct platform_device *pdev;
107e01fc42dSPeter Rosin struct regmap *regmap;
10877bbb2b0SAntti Palosaari
10977bbb2b0SAntti Palosaari struct video_device vdev;
11077bbb2b0SAntti Palosaari struct v4l2_device v4l2_dev;
111fc3a0497SAntti Palosaari struct v4l2_subdev *v4l2_subdev;
11277bbb2b0SAntti Palosaari
11377bbb2b0SAntti Palosaari /* videobuf2 queue and queued buffers list */
11477bbb2b0SAntti Palosaari struct vb2_queue vb_queue;
11577bbb2b0SAntti Palosaari struct list_head queued_bufs;
11677bbb2b0SAntti Palosaari spinlock_t queued_bufs_lock; /* Protects queued_bufs */
11777bbb2b0SAntti Palosaari unsigned sequence; /* buffer sequence counter */
11877bbb2b0SAntti Palosaari
11977bbb2b0SAntti Palosaari /* Note if taking both locks v4l2_lock must always be locked first! */
12077bbb2b0SAntti Palosaari struct mutex v4l2_lock; /* Protects everything else */
12177bbb2b0SAntti Palosaari struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */
12277bbb2b0SAntti Palosaari
12377bbb2b0SAntti Palosaari /* Pointer to our usb_device, will be NULL after unplug */
12477bbb2b0SAntti Palosaari struct usb_device *udev; /* Both mutexes most be hold when setting! */
12577bbb2b0SAntti Palosaari
12677bbb2b0SAntti Palosaari unsigned int vb_full; /* vb is full and packets dropped */
12777bbb2b0SAntti Palosaari
12877bbb2b0SAntti Palosaari struct urb *urb_list[MAX_BULK_BUFS];
12977bbb2b0SAntti Palosaari int buf_num;
13077bbb2b0SAntti Palosaari unsigned long buf_size;
13177bbb2b0SAntti Palosaari u8 *buf_list[MAX_BULK_BUFS];
13277bbb2b0SAntti Palosaari dma_addr_t dma_addr[MAX_BULK_BUFS];
13377bbb2b0SAntti Palosaari int urbs_initialized;
13477bbb2b0SAntti Palosaari int urbs_submitted;
13577bbb2b0SAntti Palosaari
13677bbb2b0SAntti Palosaari unsigned int f_adc, f_tuner;
13777bbb2b0SAntti Palosaari u32 pixelformat;
138d57fe404SAntti Palosaari u32 buffersize;
1392970c0d5SAntti Palosaari unsigned int num_formats;
14077bbb2b0SAntti Palosaari
14177bbb2b0SAntti Palosaari /* Controls */
14277bbb2b0SAntti Palosaari struct v4l2_ctrl_handler hdl;
14377bbb2b0SAntti Palosaari struct v4l2_ctrl *bandwidth_auto;
14477bbb2b0SAntti Palosaari struct v4l2_ctrl *bandwidth;
14577bbb2b0SAntti Palosaari
14677bbb2b0SAntti Palosaari /* for sample rate calc */
14777bbb2b0SAntti Palosaari unsigned int sample;
14877bbb2b0SAntti Palosaari unsigned int sample_measured;
14977bbb2b0SAntti Palosaari unsigned long jiffies_next;
15077bbb2b0SAntti Palosaari };
15177bbb2b0SAntti Palosaari
15277bbb2b0SAntti Palosaari /* Private functions */
rtl2832_sdr_get_next_fill_buf(struct rtl2832_sdr_dev * dev)15377bbb2b0SAntti Palosaari static struct rtl2832_sdr_frame_buf *rtl2832_sdr_get_next_fill_buf(
154725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev)
15577bbb2b0SAntti Palosaari {
156abfc8d66SAntti Palosaari unsigned long flags;
15777bbb2b0SAntti Palosaari struct rtl2832_sdr_frame_buf *buf = NULL;
15877bbb2b0SAntti Palosaari
159725b7f30SAntti Palosaari spin_lock_irqsave(&dev->queued_bufs_lock, flags);
160725b7f30SAntti Palosaari if (list_empty(&dev->queued_bufs))
16177bbb2b0SAntti Palosaari goto leave;
16277bbb2b0SAntti Palosaari
163725b7f30SAntti Palosaari buf = list_entry(dev->queued_bufs.next,
16477bbb2b0SAntti Palosaari struct rtl2832_sdr_frame_buf, list);
16577bbb2b0SAntti Palosaari list_del(&buf->list);
16677bbb2b0SAntti Palosaari leave:
167725b7f30SAntti Palosaari spin_unlock_irqrestore(&dev->queued_bufs_lock, flags);
16877bbb2b0SAntti Palosaari return buf;
16977bbb2b0SAntti Palosaari }
17077bbb2b0SAntti Palosaari
rtl2832_sdr_convert_stream(struct rtl2832_sdr_dev * dev,void * dst,const u8 * src,unsigned int src_len)171725b7f30SAntti Palosaari static unsigned int rtl2832_sdr_convert_stream(struct rtl2832_sdr_dev *dev,
17277bbb2b0SAntti Palosaari void *dst, const u8 *src, unsigned int src_len)
17377bbb2b0SAntti Palosaari {
174e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
17577bbb2b0SAntti Palosaari unsigned int dst_len;
17677bbb2b0SAntti Palosaari
177725b7f30SAntti Palosaari if (dev->pixelformat == V4L2_SDR_FMT_CU8) {
17877bbb2b0SAntti Palosaari /* native stream, no need to convert */
17977bbb2b0SAntti Palosaari memcpy(dst, src, src_len);
18077bbb2b0SAntti Palosaari dst_len = src_len;
181725b7f30SAntti Palosaari } else if (dev->pixelformat == V4L2_SDR_FMT_CU16LE) {
18277bbb2b0SAntti Palosaari /* convert u8 to u16 */
18377bbb2b0SAntti Palosaari unsigned int i;
18477bbb2b0SAntti Palosaari u16 *u16dst = dst;
18577bbb2b0SAntti Palosaari
18677bbb2b0SAntti Palosaari for (i = 0; i < src_len; i++)
18777bbb2b0SAntti Palosaari *u16dst++ = (src[i] << 8) | (src[i] >> 0);
18877bbb2b0SAntti Palosaari dst_len = 2 * src_len;
18977bbb2b0SAntti Palosaari } else {
19077bbb2b0SAntti Palosaari dst_len = 0;
19177bbb2b0SAntti Palosaari }
19277bbb2b0SAntti Palosaari
193b538a8e8SAntti Palosaari /* calculate sample rate and output it in 10 seconds intervals */
194725b7f30SAntti Palosaari if (unlikely(time_is_before_jiffies(dev->jiffies_next))) {
19577bbb2b0SAntti Palosaari #define MSECS 10000UL
196b538a8e8SAntti Palosaari unsigned int msecs = jiffies_to_msecs(jiffies -
197725b7f30SAntti Palosaari dev->jiffies_next + msecs_to_jiffies(MSECS));
198725b7f30SAntti Palosaari unsigned int samples = dev->sample - dev->sample_measured;
19977bbb2b0SAntti Palosaari
200725b7f30SAntti Palosaari dev->jiffies_next = jiffies + msecs_to_jiffies(MSECS);
201725b7f30SAntti Palosaari dev->sample_measured = dev->sample;
202e4e78693SAntti Palosaari dev_dbg(&pdev->dev,
203b538a8e8SAntti Palosaari "slen=%u samples=%u msecs=%u sample rate=%lu\n",
204e4e78693SAntti Palosaari src_len, samples, msecs, samples * 1000UL / msecs);
20577bbb2b0SAntti Palosaari }
20677bbb2b0SAntti Palosaari
20777bbb2b0SAntti Palosaari /* total number of I+Q pairs */
208725b7f30SAntti Palosaari dev->sample += src_len / 2;
20977bbb2b0SAntti Palosaari
21077bbb2b0SAntti Palosaari return dst_len;
21177bbb2b0SAntti Palosaari }
21277bbb2b0SAntti Palosaari
21377bbb2b0SAntti Palosaari /*
21477bbb2b0SAntti Palosaari * This gets called for the bulk stream pipe. This is done in interrupt
21577bbb2b0SAntti Palosaari * time, so it has to be fast, not crash, and not stall. Neat.
21677bbb2b0SAntti Palosaari */
rtl2832_sdr_urb_complete(struct urb * urb)21777bbb2b0SAntti Palosaari static void rtl2832_sdr_urb_complete(struct urb *urb)
21877bbb2b0SAntti Palosaari {
219725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = urb->context;
220e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
22177bbb2b0SAntti Palosaari struct rtl2832_sdr_frame_buf *fbuf;
22277bbb2b0SAntti Palosaari
223e4e78693SAntti Palosaari dev_dbg_ratelimited(&pdev->dev, "status=%d length=%d/%d errors=%d\n",
224d4d20500SAntti Palosaari urb->status, urb->actual_length,
22577bbb2b0SAntti Palosaari urb->transfer_buffer_length, urb->error_count);
22677bbb2b0SAntti Palosaari
22777bbb2b0SAntti Palosaari switch (urb->status) {
22877bbb2b0SAntti Palosaari case 0: /* success */
22977bbb2b0SAntti Palosaari case -ETIMEDOUT: /* NAK */
23077bbb2b0SAntti Palosaari break;
23177bbb2b0SAntti Palosaari case -ECONNRESET: /* kill */
23277bbb2b0SAntti Palosaari case -ENOENT:
23377bbb2b0SAntti Palosaari case -ESHUTDOWN:
23477bbb2b0SAntti Palosaari return;
23577bbb2b0SAntti Palosaari default: /* error */
236e4e78693SAntti Palosaari dev_err_ratelimited(&pdev->dev, "urb failed=%d\n", urb->status);
23777bbb2b0SAntti Palosaari break;
23877bbb2b0SAntti Palosaari }
23977bbb2b0SAntti Palosaari
24077bbb2b0SAntti Palosaari if (likely(urb->actual_length > 0)) {
24177bbb2b0SAntti Palosaari void *ptr;
24277bbb2b0SAntti Palosaari unsigned int len;
24377bbb2b0SAntti Palosaari /* get free framebuffer */
244725b7f30SAntti Palosaari fbuf = rtl2832_sdr_get_next_fill_buf(dev);
24577bbb2b0SAntti Palosaari if (unlikely(fbuf == NULL)) {
246725b7f30SAntti Palosaari dev->vb_full++;
247e4e78693SAntti Palosaari dev_notice_ratelimited(&pdev->dev,
248f068a6ceSHans Verkuil "video buffer is full, %d packets dropped\n",
249725b7f30SAntti Palosaari dev->vb_full);
25077bbb2b0SAntti Palosaari goto skip;
25177bbb2b0SAntti Palosaari }
25277bbb2b0SAntti Palosaari
25377bbb2b0SAntti Palosaari /* fill framebuffer */
2542d700715SJunghak Sung ptr = vb2_plane_vaddr(&fbuf->vb.vb2_buf, 0);
255725b7f30SAntti Palosaari len = rtl2832_sdr_convert_stream(dev, ptr, urb->transfer_buffer,
25677bbb2b0SAntti Palosaari urb->actual_length);
2572d700715SJunghak Sung vb2_set_plane_payload(&fbuf->vb.vb2_buf, 0, len);
258d6dd645eSJunghak Sung fbuf->vb.vb2_buf.timestamp = ktime_get_ns();
2592d700715SJunghak Sung fbuf->vb.sequence = dev->sequence++;
2602d700715SJunghak Sung vb2_buffer_done(&fbuf->vb.vb2_buf, VB2_BUF_STATE_DONE);
26177bbb2b0SAntti Palosaari }
26277bbb2b0SAntti Palosaari skip:
26377bbb2b0SAntti Palosaari usb_submit_urb(urb, GFP_ATOMIC);
26477bbb2b0SAntti Palosaari }
26577bbb2b0SAntti Palosaari
rtl2832_sdr_kill_urbs(struct rtl2832_sdr_dev * dev)266725b7f30SAntti Palosaari static int rtl2832_sdr_kill_urbs(struct rtl2832_sdr_dev *dev)
26777bbb2b0SAntti Palosaari {
268e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
26977bbb2b0SAntti Palosaari int i;
27077bbb2b0SAntti Palosaari
271725b7f30SAntti Palosaari for (i = dev->urbs_submitted - 1; i >= 0; i--) {
272e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "kill urb=%d\n", i);
27377bbb2b0SAntti Palosaari /* stop the URB */
274725b7f30SAntti Palosaari usb_kill_urb(dev->urb_list[i]);
27577bbb2b0SAntti Palosaari }
276725b7f30SAntti Palosaari dev->urbs_submitted = 0;
27777bbb2b0SAntti Palosaari
27877bbb2b0SAntti Palosaari return 0;
27977bbb2b0SAntti Palosaari }
28077bbb2b0SAntti Palosaari
rtl2832_sdr_submit_urbs(struct rtl2832_sdr_dev * dev)281725b7f30SAntti Palosaari static int rtl2832_sdr_submit_urbs(struct rtl2832_sdr_dev *dev)
28277bbb2b0SAntti Palosaari {
283e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
28477bbb2b0SAntti Palosaari int i, ret;
28577bbb2b0SAntti Palosaari
286725b7f30SAntti Palosaari for (i = 0; i < dev->urbs_initialized; i++) {
287e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "submit urb=%d\n", i);
288730129e9SJia-Ju Bai ret = usb_submit_urb(dev->urb_list[i], GFP_KERNEL);
28977bbb2b0SAntti Palosaari if (ret) {
290e4e78693SAntti Palosaari dev_err(&pdev->dev,
29177bbb2b0SAntti Palosaari "Could not submit urb no. %d - get them all back\n",
29277bbb2b0SAntti Palosaari i);
293725b7f30SAntti Palosaari rtl2832_sdr_kill_urbs(dev);
29477bbb2b0SAntti Palosaari return ret;
29577bbb2b0SAntti Palosaari }
296725b7f30SAntti Palosaari dev->urbs_submitted++;
29777bbb2b0SAntti Palosaari }
29877bbb2b0SAntti Palosaari
29977bbb2b0SAntti Palosaari return 0;
30077bbb2b0SAntti Palosaari }
30177bbb2b0SAntti Palosaari
rtl2832_sdr_free_stream_bufs(struct rtl2832_sdr_dev * dev)302725b7f30SAntti Palosaari static int rtl2832_sdr_free_stream_bufs(struct rtl2832_sdr_dev *dev)
30377bbb2b0SAntti Palosaari {
304e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
3053bda2bf1SAntti Palosaari
306e4d131d3SDan Carpenter if (test_bit(URB_BUF, &dev->flags)) {
307725b7f30SAntti Palosaari while (dev->buf_num) {
308725b7f30SAntti Palosaari dev->buf_num--;
309e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "free buf=%d\n", dev->buf_num);
310725b7f30SAntti Palosaari usb_free_coherent(dev->udev, dev->buf_size,
311725b7f30SAntti Palosaari dev->buf_list[dev->buf_num],
312725b7f30SAntti Palosaari dev->dma_addr[dev->buf_num]);
31377bbb2b0SAntti Palosaari }
31477bbb2b0SAntti Palosaari }
315e4d131d3SDan Carpenter clear_bit(URB_BUF, &dev->flags);
31677bbb2b0SAntti Palosaari
31777bbb2b0SAntti Palosaari return 0;
31877bbb2b0SAntti Palosaari }
31977bbb2b0SAntti Palosaari
rtl2832_sdr_alloc_stream_bufs(struct rtl2832_sdr_dev * dev)320725b7f30SAntti Palosaari static int rtl2832_sdr_alloc_stream_bufs(struct rtl2832_sdr_dev *dev)
32177bbb2b0SAntti Palosaari {
322e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
3233bda2bf1SAntti Palosaari
324725b7f30SAntti Palosaari dev->buf_num = 0;
325725b7f30SAntti Palosaari dev->buf_size = BULK_BUFFER_SIZE;
32677bbb2b0SAntti Palosaari
327e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "all in all I will use %u bytes for streaming\n",
328d4d20500SAntti Palosaari MAX_BULK_BUFS * BULK_BUFFER_SIZE);
32977bbb2b0SAntti Palosaari
330725b7f30SAntti Palosaari for (dev->buf_num = 0; dev->buf_num < MAX_BULK_BUFS; dev->buf_num++) {
331725b7f30SAntti Palosaari dev->buf_list[dev->buf_num] = usb_alloc_coherent(dev->udev,
332730129e9SJia-Ju Bai BULK_BUFFER_SIZE, GFP_KERNEL,
333725b7f30SAntti Palosaari &dev->dma_addr[dev->buf_num]);
334725b7f30SAntti Palosaari if (!dev->buf_list[dev->buf_num]) {
335e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "alloc buf=%d failed\n",
336725b7f30SAntti Palosaari dev->buf_num);
337725b7f30SAntti Palosaari rtl2832_sdr_free_stream_bufs(dev);
33877bbb2b0SAntti Palosaari return -ENOMEM;
33977bbb2b0SAntti Palosaari }
34077bbb2b0SAntti Palosaari
341e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "alloc buf=%d %p (dma %llu)\n",
342725b7f30SAntti Palosaari dev->buf_num, dev->buf_list[dev->buf_num],
343725b7f30SAntti Palosaari (long long)dev->dma_addr[dev->buf_num]);
344e4d131d3SDan Carpenter set_bit(URB_BUF, &dev->flags);
34577bbb2b0SAntti Palosaari }
34677bbb2b0SAntti Palosaari
34777bbb2b0SAntti Palosaari return 0;
34877bbb2b0SAntti Palosaari }
34977bbb2b0SAntti Palosaari
rtl2832_sdr_free_urbs(struct rtl2832_sdr_dev * dev)350725b7f30SAntti Palosaari static int rtl2832_sdr_free_urbs(struct rtl2832_sdr_dev *dev)
35177bbb2b0SAntti Palosaari {
352e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
35377bbb2b0SAntti Palosaari int i;
35477bbb2b0SAntti Palosaari
355725b7f30SAntti Palosaari rtl2832_sdr_kill_urbs(dev);
35677bbb2b0SAntti Palosaari
357725b7f30SAntti Palosaari for (i = dev->urbs_initialized - 1; i >= 0; i--) {
358725b7f30SAntti Palosaari if (dev->urb_list[i]) {
359e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "free urb=%d\n", i);
36077bbb2b0SAntti Palosaari /* free the URBs */
361725b7f30SAntti Palosaari usb_free_urb(dev->urb_list[i]);
36277bbb2b0SAntti Palosaari }
36377bbb2b0SAntti Palosaari }
364725b7f30SAntti Palosaari dev->urbs_initialized = 0;
36577bbb2b0SAntti Palosaari
36677bbb2b0SAntti Palosaari return 0;
36777bbb2b0SAntti Palosaari }
36877bbb2b0SAntti Palosaari
rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_dev * dev)369725b7f30SAntti Palosaari static int rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_dev *dev)
37077bbb2b0SAntti Palosaari {
371e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
37277bbb2b0SAntti Palosaari int i, j;
37377bbb2b0SAntti Palosaari
37477bbb2b0SAntti Palosaari /* allocate the URBs */
37577bbb2b0SAntti Palosaari for (i = 0; i < MAX_BULK_BUFS; i++) {
376e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "alloc urb=%d\n", i);
377730129e9SJia-Ju Bai dev->urb_list[i] = usb_alloc_urb(0, GFP_KERNEL);
378725b7f30SAntti Palosaari if (!dev->urb_list[i]) {
379cefdc951SNil Yi for (j = 0; j < i; j++) {
380725b7f30SAntti Palosaari usb_free_urb(dev->urb_list[j]);
381cefdc951SNil Yi dev->urb_list[j] = NULL;
382cefdc951SNil Yi }
383cefdc951SNil Yi dev->urbs_initialized = 0;
38477bbb2b0SAntti Palosaari return -ENOMEM;
38577bbb2b0SAntti Palosaari }
386725b7f30SAntti Palosaari usb_fill_bulk_urb(dev->urb_list[i],
387725b7f30SAntti Palosaari dev->udev,
388725b7f30SAntti Palosaari usb_rcvbulkpipe(dev->udev, 0x81),
389725b7f30SAntti Palosaari dev->buf_list[i],
39077bbb2b0SAntti Palosaari BULK_BUFFER_SIZE,
391725b7f30SAntti Palosaari rtl2832_sdr_urb_complete, dev);
39277bbb2b0SAntti Palosaari
393725b7f30SAntti Palosaari dev->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
394725b7f30SAntti Palosaari dev->urb_list[i]->transfer_dma = dev->dma_addr[i];
395725b7f30SAntti Palosaari dev->urbs_initialized++;
39677bbb2b0SAntti Palosaari }
39777bbb2b0SAntti Palosaari
39877bbb2b0SAntti Palosaari return 0;
39977bbb2b0SAntti Palosaari }
40077bbb2b0SAntti Palosaari
40177bbb2b0SAntti Palosaari /* Must be called with vb_queue_lock hold */
rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev * dev)402725b7f30SAntti Palosaari static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev *dev)
40377bbb2b0SAntti Palosaari {
404e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
405abfc8d66SAntti Palosaari unsigned long flags;
40677bbb2b0SAntti Palosaari
407e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "\n");
40877bbb2b0SAntti Palosaari
409725b7f30SAntti Palosaari spin_lock_irqsave(&dev->queued_bufs_lock, flags);
410725b7f30SAntti Palosaari while (!list_empty(&dev->queued_bufs)) {
41177bbb2b0SAntti Palosaari struct rtl2832_sdr_frame_buf *buf;
41277bbb2b0SAntti Palosaari
413725b7f30SAntti Palosaari buf = list_entry(dev->queued_bufs.next,
41477bbb2b0SAntti Palosaari struct rtl2832_sdr_frame_buf, list);
41577bbb2b0SAntti Palosaari list_del(&buf->list);
4162d700715SJunghak Sung vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
41777bbb2b0SAntti Palosaari }
418725b7f30SAntti Palosaari spin_unlock_irqrestore(&dev->queued_bufs_lock, flags);
41977bbb2b0SAntti Palosaari }
42077bbb2b0SAntti Palosaari
rtl2832_sdr_querycap(struct file * file,void * fh,struct v4l2_capability * cap)42177bbb2b0SAntti Palosaari static int rtl2832_sdr_querycap(struct file *file, void *fh,
42277bbb2b0SAntti Palosaari struct v4l2_capability *cap)
42377bbb2b0SAntti Palosaari {
424725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = video_drvdata(file);
425e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
42677bbb2b0SAntti Palosaari
427e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "\n");
42877bbb2b0SAntti Palosaari
429c0decac1SMauro Carvalho Chehab strscpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver));
430c0decac1SMauro Carvalho Chehab strscpy(cap->card, dev->vdev.name, sizeof(cap->card));
431725b7f30SAntti Palosaari usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
43277bbb2b0SAntti Palosaari return 0;
43377bbb2b0SAntti Palosaari }
43477bbb2b0SAntti Palosaari
43577bbb2b0SAntti Palosaari /* Videobuf2 operations */
rtl2832_sdr_queue_setup(struct vb2_queue * vq,unsigned int * nbuffers,unsigned int * nplanes,unsigned int sizes[],struct device * alloc_devs[])43677bbb2b0SAntti Palosaari static int rtl2832_sdr_queue_setup(struct vb2_queue *vq,
437df9ecb0cSHans Verkuil unsigned int *nbuffers,
43836c0f8b3SHans Verkuil unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[])
43977bbb2b0SAntti Palosaari {
440725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq);
441e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
442*595f445bSBenjamin Gaignard unsigned int q_num_bufs = vb2_get_num_buffers(vq);
44377bbb2b0SAntti Palosaari
444e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "nbuffers=%d\n", *nbuffers);
44577bbb2b0SAntti Palosaari
44677bbb2b0SAntti Palosaari /* Need at least 8 buffers */
447*595f445bSBenjamin Gaignard if (q_num_bufs + *nbuffers < 8)
448*595f445bSBenjamin Gaignard *nbuffers = 8 - q_num_bufs;
44977bbb2b0SAntti Palosaari *nplanes = 1;
450725b7f30SAntti Palosaari sizes[0] = PAGE_ALIGN(dev->buffersize);
451e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
45277bbb2b0SAntti Palosaari return 0;
45377bbb2b0SAntti Palosaari }
45477bbb2b0SAntti Palosaari
rtl2832_sdr_buf_prepare(struct vb2_buffer * vb)45577bbb2b0SAntti Palosaari static int rtl2832_sdr_buf_prepare(struct vb2_buffer *vb)
45677bbb2b0SAntti Palosaari {
457725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
45877bbb2b0SAntti Palosaari
459868c9a17SMauro Carvalho Chehab /* Don't allow queueing new buffers after device disconnection */
460725b7f30SAntti Palosaari if (!dev->udev)
46177bbb2b0SAntti Palosaari return -ENODEV;
46277bbb2b0SAntti Palosaari
46377bbb2b0SAntti Palosaari return 0;
46477bbb2b0SAntti Palosaari }
46577bbb2b0SAntti Palosaari
rtl2832_sdr_buf_queue(struct vb2_buffer * vb)46677bbb2b0SAntti Palosaari static void rtl2832_sdr_buf_queue(struct vb2_buffer *vb)
46777bbb2b0SAntti Palosaari {
4682d700715SJunghak Sung struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
469725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
47077bbb2b0SAntti Palosaari struct rtl2832_sdr_frame_buf *buf =
4712d700715SJunghak Sung container_of(vbuf, struct rtl2832_sdr_frame_buf, vb);
472abfc8d66SAntti Palosaari unsigned long flags;
47377bbb2b0SAntti Palosaari
47477bbb2b0SAntti Palosaari /* Check the device has not disconnected between prep and queuing */
475725b7f30SAntti Palosaari if (!dev->udev) {
4762d700715SJunghak Sung vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
47777bbb2b0SAntti Palosaari return;
47877bbb2b0SAntti Palosaari }
47977bbb2b0SAntti Palosaari
480725b7f30SAntti Palosaari spin_lock_irqsave(&dev->queued_bufs_lock, flags);
481725b7f30SAntti Palosaari list_add_tail(&buf->list, &dev->queued_bufs);
482725b7f30SAntti Palosaari spin_unlock_irqrestore(&dev->queued_bufs_lock, flags);
48377bbb2b0SAntti Palosaari }
48477bbb2b0SAntti Palosaari
rtl2832_sdr_set_adc(struct rtl2832_sdr_dev * dev)485725b7f30SAntti Palosaari static int rtl2832_sdr_set_adc(struct rtl2832_sdr_dev *dev)
48677bbb2b0SAntti Palosaari {
48763bdab5dSAntti Palosaari struct platform_device *pdev = dev->pdev;
48863bdab5dSAntti Palosaari struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
4893bda2bf1SAntti Palosaari struct dvb_frontend *fe = pdata->dvb_frontend;
49077bbb2b0SAntti Palosaari int ret;
49177bbb2b0SAntti Palosaari unsigned int f_sr, f_if;
49277bbb2b0SAntti Palosaari u8 buf[4], u8tmp1, u8tmp2;
49377bbb2b0SAntti Palosaari u64 u64tmp;
49477bbb2b0SAntti Palosaari u32 u32tmp;
49577bbb2b0SAntti Palosaari
496e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "f_adc=%u\n", dev->f_adc);
49777bbb2b0SAntti Palosaari
498725b7f30SAntti Palosaari if (!test_bit(POWER_ON, &dev->flags))
49977bbb2b0SAntti Palosaari return 0;
50077bbb2b0SAntti Palosaari
501725b7f30SAntti Palosaari if (dev->f_adc == 0)
50277bbb2b0SAntti Palosaari return 0;
50377bbb2b0SAntti Palosaari
504725b7f30SAntti Palosaari f_sr = dev->f_adc;
50577bbb2b0SAntti Palosaari
506e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x13e, "\x00\x00", 2);
50777bbb2b0SAntti Palosaari if (ret)
50877bbb2b0SAntti Palosaari goto err;
50977bbb2b0SAntti Palosaari
510e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x115, "\x00\x00\x00\x00", 4);
51177bbb2b0SAntti Palosaari if (ret)
51277bbb2b0SAntti Palosaari goto err;
51377bbb2b0SAntti Palosaari
51477bbb2b0SAntti Palosaari /* get IF from tuner */
51577bbb2b0SAntti Palosaari if (fe->ops.tuner_ops.get_if_frequency)
51677bbb2b0SAntti Palosaari ret = fe->ops.tuner_ops.get_if_frequency(fe, &f_if);
51777bbb2b0SAntti Palosaari else
51877bbb2b0SAntti Palosaari ret = -EINVAL;
51977bbb2b0SAntti Palosaari
52077bbb2b0SAntti Palosaari if (ret)
52177bbb2b0SAntti Palosaari goto err;
52277bbb2b0SAntti Palosaari
52377bbb2b0SAntti Palosaari /* program IF */
52463bdab5dSAntti Palosaari u64tmp = f_if % pdata->clk;
52577bbb2b0SAntti Palosaari u64tmp *= 0x400000;
52663bdab5dSAntti Palosaari u64tmp = div_u64(u64tmp, pdata->clk);
52777bbb2b0SAntti Palosaari u64tmp = -u64tmp;
52877bbb2b0SAntti Palosaari u32tmp = u64tmp & 0x3fffff;
52977bbb2b0SAntti Palosaari
530e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "f_if=%u if_ctl=%08x\n", f_if, u32tmp);
53177bbb2b0SAntti Palosaari
53277bbb2b0SAntti Palosaari buf[0] = (u32tmp >> 16) & 0xff;
53377bbb2b0SAntti Palosaari buf[1] = (u32tmp >> 8) & 0xff;
53477bbb2b0SAntti Palosaari buf[2] = (u32tmp >> 0) & 0xff;
53577bbb2b0SAntti Palosaari
536e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x119, buf, 3);
53777bbb2b0SAntti Palosaari if (ret)
53877bbb2b0SAntti Palosaari goto err;
53977bbb2b0SAntti Palosaari
54077bbb2b0SAntti Palosaari /* BB / IF mode */
54177bbb2b0SAntti Palosaari /* POR: 0x1b1=0x1f, 0x008=0x0d, 0x006=0x80 */
54277bbb2b0SAntti Palosaari if (f_if) {
54377bbb2b0SAntti Palosaari u8tmp1 = 0x1a; /* disable Zero-IF */
54477bbb2b0SAntti Palosaari u8tmp2 = 0x8d; /* enable ADC I */
54577bbb2b0SAntti Palosaari } else {
54677bbb2b0SAntti Palosaari u8tmp1 = 0x1b; /* enable Zero-IF, DC, IQ */
54777bbb2b0SAntti Palosaari u8tmp2 = 0xcd; /* enable ADC I, ADC Q */
54877bbb2b0SAntti Palosaari }
54977bbb2b0SAntti Palosaari
550e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1b1, u8tmp1);
55177bbb2b0SAntti Palosaari if (ret)
55277bbb2b0SAntti Palosaari goto err;
55377bbb2b0SAntti Palosaari
554e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x008, u8tmp2);
55577bbb2b0SAntti Palosaari if (ret)
55677bbb2b0SAntti Palosaari goto err;
55777bbb2b0SAntti Palosaari
558e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x006, 0x80);
55977bbb2b0SAntti Palosaari if (ret)
56077bbb2b0SAntti Palosaari goto err;
56177bbb2b0SAntti Palosaari
56277bbb2b0SAntti Palosaari /* program sampling rate (resampling down) */
56363bdab5dSAntti Palosaari u32tmp = div_u64(pdata->clk * 0x400000ULL, f_sr * 4U);
56477bbb2b0SAntti Palosaari u32tmp <<= 2;
56577bbb2b0SAntti Palosaari buf[0] = (u32tmp >> 24) & 0xff;
56677bbb2b0SAntti Palosaari buf[1] = (u32tmp >> 16) & 0xff;
56777bbb2b0SAntti Palosaari buf[2] = (u32tmp >> 8) & 0xff;
56877bbb2b0SAntti Palosaari buf[3] = (u32tmp >> 0) & 0xff;
569e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x19f, buf, 4);
57077bbb2b0SAntti Palosaari if (ret)
57177bbb2b0SAntti Palosaari goto err;
57277bbb2b0SAntti Palosaari
57377bbb2b0SAntti Palosaari /* low-pass filter */
574e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x11c,
57577bbb2b0SAntti Palosaari "\xca\xdc\xd7\xd8\xe0\xf2\x0e\x35\x06\x50\x9c\x0d\x71\x11\x14\x71\x74\x19\x41\xa5",
57677bbb2b0SAntti Palosaari 20);
57777bbb2b0SAntti Palosaari if (ret)
57877bbb2b0SAntti Palosaari goto err;
57977bbb2b0SAntti Palosaari
580e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x017, "\x11\x10", 2);
58177bbb2b0SAntti Palosaari if (ret)
58277bbb2b0SAntti Palosaari goto err;
58377bbb2b0SAntti Palosaari
58477bbb2b0SAntti Palosaari /* mode */
585e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x019, 0x05);
58677bbb2b0SAntti Palosaari if (ret)
58777bbb2b0SAntti Palosaari goto err;
58877bbb2b0SAntti Palosaari
589e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x01a,
590e01fc42dSPeter Rosin "\x1b\x16\x0d\x06\x01\xff", 6);
59177bbb2b0SAntti Palosaari if (ret)
59277bbb2b0SAntti Palosaari goto err;
59377bbb2b0SAntti Palosaari
59477bbb2b0SAntti Palosaari /* FSM */
595e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\xf0\x0f", 3);
59677bbb2b0SAntti Palosaari if (ret)
59777bbb2b0SAntti Palosaari goto err;
59877bbb2b0SAntti Palosaari
59977bbb2b0SAntti Palosaari /* PID filter */
600e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x061, 0x60);
60177bbb2b0SAntti Palosaari if (ret)
60277bbb2b0SAntti Palosaari goto err;
60377bbb2b0SAntti Palosaari
60477bbb2b0SAntti Palosaari /* used RF tuner based settings */
60563bdab5dSAntti Palosaari switch (pdata->tuner) {
60663bdab5dSAntti Palosaari case RTL2832_SDR_TUNER_E4000:
607e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x112, 0x5a);
608e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x102, 0x40);
609e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x103, 0x5a);
610e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c7, 0x30);
611e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x104, 0xd0);
612e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x105, 0xbe);
613e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c8, 0x18);
614e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x106, 0x35);
615e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c9, 0x21);
616e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1ca, 0x21);
617e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1cb, 0x00);
618e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x107, 0x40);
619e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1cd, 0x10);
620e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1ce, 0x10);
621e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x108, 0x80);
622e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x109, 0x7f);
623e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x10a, 0x80);
624e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x10b, 0x7f);
625e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00e, 0xfc);
626e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00e, 0xfc);
627e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x011, 0xd4);
628e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1e5, 0xf0);
629e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1d9, 0x00);
630e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1db, 0x00);
631e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1dd, 0x14);
632e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1de, 0xec);
633e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1d8, 0x0c);
634e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1e6, 0x02);
635e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1d7, 0x09);
636e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00d, 0x83);
637e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x010, 0x49);
638e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00d, 0x87);
639e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00d, 0x85);
640e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x013, 0x02);
64177bbb2b0SAntti Palosaari break;
64263bdab5dSAntti Palosaari case RTL2832_SDR_TUNER_FC0012:
64363bdab5dSAntti Palosaari case RTL2832_SDR_TUNER_FC0013:
644e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x112, 0x5a);
645e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x102, 0x40);
646e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x103, 0x5a);
647e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c7, 0x2c);
648e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x104, 0xcc);
649e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x105, 0xbe);
650e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c8, 0x16);
651e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x106, 0x35);
652e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c9, 0x21);
653e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1ca, 0x21);
654e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1cb, 0x00);
655e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x107, 0x40);
656e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1cd, 0x10);
657e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1ce, 0x10);
658e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x108, 0x80);
659e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x109, 0x7f);
660e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x10a, 0x80);
661e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x10b, 0x7f);
662e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00e, 0xfc);
663e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00e, 0xfc);
664e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x011, "\xe9\xbf", 2);
665e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1e5, 0xf0);
666e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1d9, 0x00);
667e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1db, 0x00);
668e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1dd, 0x11);
669e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1de, 0xef);
670e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1d8, 0x0c);
671e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1e6, 0x02);
672e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1d7, 0x09);
67377bbb2b0SAntti Palosaari break;
67463bdab5dSAntti Palosaari case RTL2832_SDR_TUNER_R820T:
67563bdab5dSAntti Palosaari case RTL2832_SDR_TUNER_R828D:
676e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x112, 0x5a);
677e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x102, 0x40);
678e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x115, 0x01);
679e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x103, 0x80);
680e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c7, 0x24);
681e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x104, 0xcc);
682e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x105, 0xbe);
683e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c8, 0x14);
684e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x106, 0x35);
685e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c9, 0x21);
686e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1ca, 0x21);
687e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1cb, 0x00);
688e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x107, 0x40);
689e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1cd, 0x10);
690e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1ce, 0x10);
691e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x108, 0x80);
692e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x109, 0x7f);
693e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x10a, 0x80);
694e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x10b, 0x7f);
695e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00e, 0xfc);
696e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00e, 0xfc);
697e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x011, 0xf4);
69877bbb2b0SAntti Palosaari break;
699fc3a0497SAntti Palosaari case RTL2832_SDR_TUNER_FC2580:
700e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x112, 0x39);
701e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x102, 0x40);
702e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x103, 0x5a);
703e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c7, 0x2c);
704e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x104, 0xcc);
705e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x105, 0xbe);
706e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c8, 0x16);
707e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x106, 0x35);
708e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1c9, 0x21);
709e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1ca, 0x21);
710e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1cb, 0x00);
711e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x107, 0x40);
712e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1cd, 0x10);
713e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x1ce, 0x10);
714e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x108, 0x80);
715e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x109, 0x7f);
716e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x10a, 0x9c);
717e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x10b, 0x7f);
718e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00e, 0xfc);
719e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x00e, 0xfc);
720e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x011, "\xe9\xf4", 2);
721fc3a0497SAntti Palosaari break;
72277bbb2b0SAntti Palosaari default:
723e4e78693SAntti Palosaari dev_notice(&pdev->dev, "Unsupported tuner\n");
72477bbb2b0SAntti Palosaari }
72577bbb2b0SAntti Palosaari
72677bbb2b0SAntti Palosaari /* software reset */
727e01fc42dSPeter Rosin ret = regmap_update_bits(dev->regmap, 0x101, 0x04, 0x04);
72877bbb2b0SAntti Palosaari if (ret)
72977bbb2b0SAntti Palosaari goto err;
73077bbb2b0SAntti Palosaari
731e01fc42dSPeter Rosin ret = regmap_update_bits(dev->regmap, 0x101, 0x04, 0x00);
73277bbb2b0SAntti Palosaari if (ret)
73377bbb2b0SAntti Palosaari goto err;
73477bbb2b0SAntti Palosaari err:
73577bbb2b0SAntti Palosaari return ret;
73677bbb2b0SAntti Palosaari };
73777bbb2b0SAntti Palosaari
rtl2832_sdr_unset_adc(struct rtl2832_sdr_dev * dev)738725b7f30SAntti Palosaari static void rtl2832_sdr_unset_adc(struct rtl2832_sdr_dev *dev)
73977bbb2b0SAntti Palosaari {
740e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
74177bbb2b0SAntti Palosaari int ret;
74277bbb2b0SAntti Palosaari
743e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "\n");
74477bbb2b0SAntti Palosaari
74577bbb2b0SAntti Palosaari /* PID filter */
746e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x061, 0xe0);
74777bbb2b0SAntti Palosaari if (ret)
74877bbb2b0SAntti Palosaari goto err;
74977bbb2b0SAntti Palosaari
75077bbb2b0SAntti Palosaari /* mode */
751e01fc42dSPeter Rosin ret = regmap_write(dev->regmap, 0x019, 0x20);
75277bbb2b0SAntti Palosaari if (ret)
75377bbb2b0SAntti Palosaari goto err;
75477bbb2b0SAntti Palosaari
755e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x017, "\x11\x10", 2);
75677bbb2b0SAntti Palosaari if (ret)
75777bbb2b0SAntti Palosaari goto err;
75877bbb2b0SAntti Palosaari
75977bbb2b0SAntti Palosaari /* FSM */
760e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\x0f\xff", 3);
76177bbb2b0SAntti Palosaari if (ret)
76277bbb2b0SAntti Palosaari goto err;
76377bbb2b0SAntti Palosaari
764e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x13e, "\x40\x00", 2);
76577bbb2b0SAntti Palosaari if (ret)
76677bbb2b0SAntti Palosaari goto err;
76777bbb2b0SAntti Palosaari
768e01fc42dSPeter Rosin ret = regmap_bulk_write(dev->regmap, 0x115, "\x06\x3f\xce\xcc", 4);
76977bbb2b0SAntti Palosaari if (ret)
77077bbb2b0SAntti Palosaari goto err;
77177bbb2b0SAntti Palosaari err:
77277bbb2b0SAntti Palosaari return;
77377bbb2b0SAntti Palosaari };
77477bbb2b0SAntti Palosaari
rtl2832_sdr_set_tuner_freq(struct rtl2832_sdr_dev * dev)775725b7f30SAntti Palosaari static int rtl2832_sdr_set_tuner_freq(struct rtl2832_sdr_dev *dev)
77677bbb2b0SAntti Palosaari {
777e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
7783bda2bf1SAntti Palosaari struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
7793bda2bf1SAntti Palosaari struct dvb_frontend *fe = pdata->dvb_frontend;
78077bbb2b0SAntti Palosaari struct dtv_frontend_properties *c = &fe->dtv_property_cache;
78177bbb2b0SAntti Palosaari struct v4l2_ctrl *bandwidth_auto;
78277bbb2b0SAntti Palosaari struct v4l2_ctrl *bandwidth;
78377bbb2b0SAntti Palosaari
78477bbb2b0SAntti Palosaari /*
78577bbb2b0SAntti Palosaari * tuner RF (Hz)
78677bbb2b0SAntti Palosaari */
787725b7f30SAntti Palosaari if (dev->f_tuner == 0)
78877bbb2b0SAntti Palosaari return 0;
78977bbb2b0SAntti Palosaari
79077bbb2b0SAntti Palosaari /*
79177bbb2b0SAntti Palosaari * bandwidth (Hz)
79277bbb2b0SAntti Palosaari */
793725b7f30SAntti Palosaari bandwidth_auto = v4l2_ctrl_find(&dev->hdl,
79477bbb2b0SAntti Palosaari V4L2_CID_RF_TUNER_BANDWIDTH_AUTO);
795725b7f30SAntti Palosaari bandwidth = v4l2_ctrl_find(&dev->hdl, V4L2_CID_RF_TUNER_BANDWIDTH);
79677bbb2b0SAntti Palosaari if (v4l2_ctrl_g_ctrl(bandwidth_auto)) {
797725b7f30SAntti Palosaari c->bandwidth_hz = dev->f_adc;
798725b7f30SAntti Palosaari v4l2_ctrl_s_ctrl(bandwidth, dev->f_adc);
79977bbb2b0SAntti Palosaari } else {
80077bbb2b0SAntti Palosaari c->bandwidth_hz = v4l2_ctrl_g_ctrl(bandwidth);
80177bbb2b0SAntti Palosaari }
80277bbb2b0SAntti Palosaari
803725b7f30SAntti Palosaari c->frequency = dev->f_tuner;
80477bbb2b0SAntti Palosaari c->delivery_system = SYS_DVBT;
80577bbb2b0SAntti Palosaari
806e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "frequency=%u bandwidth=%d\n",
807d4d20500SAntti Palosaari c->frequency, c->bandwidth_hz);
80877bbb2b0SAntti Palosaari
809725b7f30SAntti Palosaari if (!test_bit(POWER_ON, &dev->flags))
81077bbb2b0SAntti Palosaari return 0;
81177bbb2b0SAntti Palosaari
812fc3a0497SAntti Palosaari if (!V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_frequency)) {
81377bbb2b0SAntti Palosaari if (fe->ops.tuner_ops.set_params)
81477bbb2b0SAntti Palosaari fe->ops.tuner_ops.set_params(fe);
815fc3a0497SAntti Palosaari }
81677bbb2b0SAntti Palosaari
81777bbb2b0SAntti Palosaari return 0;
81877bbb2b0SAntti Palosaari };
81977bbb2b0SAntti Palosaari
rtl2832_sdr_set_tuner(struct rtl2832_sdr_dev * dev)820725b7f30SAntti Palosaari static int rtl2832_sdr_set_tuner(struct rtl2832_sdr_dev *dev)
82177bbb2b0SAntti Palosaari {
822e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
8233bda2bf1SAntti Palosaari struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
8243bda2bf1SAntti Palosaari struct dvb_frontend *fe = pdata->dvb_frontend;
82577bbb2b0SAntti Palosaari
826e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "\n");
82777bbb2b0SAntti Palosaari
82877bbb2b0SAntti Palosaari if (fe->ops.tuner_ops.init)
82977bbb2b0SAntti Palosaari fe->ops.tuner_ops.init(fe);
83077bbb2b0SAntti Palosaari
83177bbb2b0SAntti Palosaari return 0;
83277bbb2b0SAntti Palosaari };
83377bbb2b0SAntti Palosaari
rtl2832_sdr_unset_tuner(struct rtl2832_sdr_dev * dev)834725b7f30SAntti Palosaari static void rtl2832_sdr_unset_tuner(struct rtl2832_sdr_dev *dev)
83577bbb2b0SAntti Palosaari {
836e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
8373bda2bf1SAntti Palosaari struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
8383bda2bf1SAntti Palosaari struct dvb_frontend *fe = pdata->dvb_frontend;
83977bbb2b0SAntti Palosaari
840e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "\n");
84177bbb2b0SAntti Palosaari
84277bbb2b0SAntti Palosaari if (fe->ops.tuner_ops.sleep)
84377bbb2b0SAntti Palosaari fe->ops.tuner_ops.sleep(fe);
84477bbb2b0SAntti Palosaari
84577bbb2b0SAntti Palosaari return;
84677bbb2b0SAntti Palosaari };
84777bbb2b0SAntti Palosaari
rtl2832_sdr_start_streaming(struct vb2_queue * vq,unsigned int count)84877bbb2b0SAntti Palosaari static int rtl2832_sdr_start_streaming(struct vb2_queue *vq, unsigned int count)
84977bbb2b0SAntti Palosaari {
850725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq);
851e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
8523bda2bf1SAntti Palosaari struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
8533bda2bf1SAntti Palosaari struct dvb_usb_device *d = pdata->dvb_usb_device;
85477bbb2b0SAntti Palosaari int ret;
85577bbb2b0SAntti Palosaari
856e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "\n");
85777bbb2b0SAntti Palosaari
858725b7f30SAntti Palosaari if (!dev->udev)
85977bbb2b0SAntti Palosaari return -ENODEV;
86077bbb2b0SAntti Palosaari
861725b7f30SAntti Palosaari if (mutex_lock_interruptible(&dev->v4l2_lock))
86277bbb2b0SAntti Palosaari return -ERESTARTSYS;
86377bbb2b0SAntti Palosaari
8643bda2bf1SAntti Palosaari if (d->props->power_ctrl)
8653bda2bf1SAntti Palosaari d->props->power_ctrl(d, 1);
86677bbb2b0SAntti Palosaari
8672281c824SAntti Palosaari /* enable ADC */
8683bda2bf1SAntti Palosaari if (d->props->frontend_ctrl)
8693bda2bf1SAntti Palosaari d->props->frontend_ctrl(pdata->dvb_frontend, 1);
8702281c824SAntti Palosaari
871725b7f30SAntti Palosaari set_bit(POWER_ON, &dev->flags);
87277bbb2b0SAntti Palosaari
873fc3a0497SAntti Palosaari /* wake-up tuner */
874fc3a0497SAntti Palosaari if (V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, core, s_power))
875fc3a0497SAntti Palosaari ret = v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 1);
876fc3a0497SAntti Palosaari else
877725b7f30SAntti Palosaari ret = rtl2832_sdr_set_tuner(dev);
87877bbb2b0SAntti Palosaari if (ret)
87977bbb2b0SAntti Palosaari goto err;
88077bbb2b0SAntti Palosaari
881725b7f30SAntti Palosaari ret = rtl2832_sdr_set_tuner_freq(dev);
88277bbb2b0SAntti Palosaari if (ret)
88377bbb2b0SAntti Palosaari goto err;
88477bbb2b0SAntti Palosaari
885725b7f30SAntti Palosaari ret = rtl2832_sdr_set_adc(dev);
88677bbb2b0SAntti Palosaari if (ret)
88777bbb2b0SAntti Palosaari goto err;
88877bbb2b0SAntti Palosaari
889725b7f30SAntti Palosaari ret = rtl2832_sdr_alloc_stream_bufs(dev);
89077bbb2b0SAntti Palosaari if (ret)
89177bbb2b0SAntti Palosaari goto err;
89277bbb2b0SAntti Palosaari
893725b7f30SAntti Palosaari ret = rtl2832_sdr_alloc_urbs(dev);
89477bbb2b0SAntti Palosaari if (ret)
89577bbb2b0SAntti Palosaari goto err;
89677bbb2b0SAntti Palosaari
897725b7f30SAntti Palosaari dev->sequence = 0;
89877bbb2b0SAntti Palosaari
899725b7f30SAntti Palosaari ret = rtl2832_sdr_submit_urbs(dev);
90077bbb2b0SAntti Palosaari if (ret)
90177bbb2b0SAntti Palosaari goto err;
90277bbb2b0SAntti Palosaari
90377bbb2b0SAntti Palosaari err:
904725b7f30SAntti Palosaari mutex_unlock(&dev->v4l2_lock);
90577bbb2b0SAntti Palosaari
90677bbb2b0SAntti Palosaari return ret;
90777bbb2b0SAntti Palosaari }
90877bbb2b0SAntti Palosaari
rtl2832_sdr_stop_streaming(struct vb2_queue * vq)90977bbb2b0SAntti Palosaari static void rtl2832_sdr_stop_streaming(struct vb2_queue *vq)
91077bbb2b0SAntti Palosaari {
911725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq);
912e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
9133bda2bf1SAntti Palosaari struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
9143bda2bf1SAntti Palosaari struct dvb_usb_device *d = pdata->dvb_usb_device;
91577bbb2b0SAntti Palosaari
916e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "\n");
91777bbb2b0SAntti Palosaari
918725b7f30SAntti Palosaari mutex_lock(&dev->v4l2_lock);
91977bbb2b0SAntti Palosaari
920725b7f30SAntti Palosaari rtl2832_sdr_kill_urbs(dev);
921725b7f30SAntti Palosaari rtl2832_sdr_free_urbs(dev);
922725b7f30SAntti Palosaari rtl2832_sdr_free_stream_bufs(dev);
923725b7f30SAntti Palosaari rtl2832_sdr_cleanup_queued_bufs(dev);
924725b7f30SAntti Palosaari rtl2832_sdr_unset_adc(dev);
925fc3a0497SAntti Palosaari
926fc3a0497SAntti Palosaari /* sleep tuner */
927fc3a0497SAntti Palosaari if (V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, core, s_power))
928fc3a0497SAntti Palosaari v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 0);
929fc3a0497SAntti Palosaari else
930725b7f30SAntti Palosaari rtl2832_sdr_unset_tuner(dev);
93177bbb2b0SAntti Palosaari
932725b7f30SAntti Palosaari clear_bit(POWER_ON, &dev->flags);
93377bbb2b0SAntti Palosaari
9342281c824SAntti Palosaari /* disable ADC */
9353bda2bf1SAntti Palosaari if (d->props->frontend_ctrl)
9363bda2bf1SAntti Palosaari d->props->frontend_ctrl(pdata->dvb_frontend, 0);
9372281c824SAntti Palosaari
9383bda2bf1SAntti Palosaari if (d->props->power_ctrl)
9393bda2bf1SAntti Palosaari d->props->power_ctrl(d, 0);
94077bbb2b0SAntti Palosaari
941725b7f30SAntti Palosaari mutex_unlock(&dev->v4l2_lock);
94277bbb2b0SAntti Palosaari }
94377bbb2b0SAntti Palosaari
944dd93e79cSBhumika Goyal static const struct vb2_ops rtl2832_sdr_vb2_ops = {
94577bbb2b0SAntti Palosaari .queue_setup = rtl2832_sdr_queue_setup,
94677bbb2b0SAntti Palosaari .buf_prepare = rtl2832_sdr_buf_prepare,
94777bbb2b0SAntti Palosaari .buf_queue = rtl2832_sdr_buf_queue,
94877bbb2b0SAntti Palosaari .start_streaming = rtl2832_sdr_start_streaming,
94977bbb2b0SAntti Palosaari .stop_streaming = rtl2832_sdr_stop_streaming,
95077bbb2b0SAntti Palosaari .wait_prepare = vb2_ops_wait_prepare,
95177bbb2b0SAntti Palosaari .wait_finish = vb2_ops_wait_finish,
95277bbb2b0SAntti Palosaari };
95377bbb2b0SAntti Palosaari
rtl2832_sdr_g_tuner(struct file * file,void * priv,struct v4l2_tuner * v)95477bbb2b0SAntti Palosaari static int rtl2832_sdr_g_tuner(struct file *file, void *priv,
95577bbb2b0SAntti Palosaari struct v4l2_tuner *v)
95677bbb2b0SAntti Palosaari {
957725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = video_drvdata(file);
958e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
959fc3a0497SAntti Palosaari int ret;
96077bbb2b0SAntti Palosaari
961e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "index=%d type=%d\n", v->index, v->type);
96277bbb2b0SAntti Palosaari
96377bbb2b0SAntti Palosaari if (v->index == 0) {
964c0decac1SMauro Carvalho Chehab strscpy(v->name, "ADC: Realtek RTL2832", sizeof(v->name));
96577bbb2b0SAntti Palosaari v->type = V4L2_TUNER_ADC;
96677bbb2b0SAntti Palosaari v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
96777bbb2b0SAntti Palosaari v->rangelow = 300000;
96877bbb2b0SAntti Palosaari v->rangehigh = 3200000;
969fc3a0497SAntti Palosaari ret = 0;
970fc3a0497SAntti Palosaari } else if (v->index == 1 &&
971fc3a0497SAntti Palosaari V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, g_tuner)) {
972fc3a0497SAntti Palosaari ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_tuner, v);
97377bbb2b0SAntti Palosaari } else if (v->index == 1) {
974c0decac1SMauro Carvalho Chehab strscpy(v->name, "RF: <unknown>", sizeof(v->name));
97577bbb2b0SAntti Palosaari v->type = V4L2_TUNER_RF;
97677bbb2b0SAntti Palosaari v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
97777bbb2b0SAntti Palosaari v->rangelow = 50000000;
97877bbb2b0SAntti Palosaari v->rangehigh = 2000000000;
979fc3a0497SAntti Palosaari ret = 0;
98077bbb2b0SAntti Palosaari } else {
981fc3a0497SAntti Palosaari ret = -EINVAL;
98277bbb2b0SAntti Palosaari }
983fc3a0497SAntti Palosaari return ret;
98477bbb2b0SAntti Palosaari }
98577bbb2b0SAntti Palosaari
rtl2832_sdr_s_tuner(struct file * file,void * priv,const struct v4l2_tuner * v)98677bbb2b0SAntti Palosaari static int rtl2832_sdr_s_tuner(struct file *file, void *priv,
98777bbb2b0SAntti Palosaari const struct v4l2_tuner *v)
98877bbb2b0SAntti Palosaari {
989725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = video_drvdata(file);
990e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
991fc3a0497SAntti Palosaari int ret;
99277bbb2b0SAntti Palosaari
993e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "\n");
99477bbb2b0SAntti Palosaari
995fc3a0497SAntti Palosaari if (v->index == 0) {
996fc3a0497SAntti Palosaari ret = 0;
997fc3a0497SAntti Palosaari } else if (v->index == 1 &&
998fc3a0497SAntti Palosaari V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_tuner)) {
999fc3a0497SAntti Palosaari ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_tuner, v);
1000fc3a0497SAntti Palosaari } else if (v->index == 1) {
1001fc3a0497SAntti Palosaari ret = 0;
1002fc3a0497SAntti Palosaari } else {
1003fc3a0497SAntti Palosaari ret = -EINVAL;
1004fc3a0497SAntti Palosaari }
1005fc3a0497SAntti Palosaari return ret;
100677bbb2b0SAntti Palosaari }
100777bbb2b0SAntti Palosaari
rtl2832_sdr_enum_freq_bands(struct file * file,void * priv,struct v4l2_frequency_band * band)100877bbb2b0SAntti Palosaari static int rtl2832_sdr_enum_freq_bands(struct file *file, void *priv,
100977bbb2b0SAntti Palosaari struct v4l2_frequency_band *band)
101077bbb2b0SAntti Palosaari {
1011725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = video_drvdata(file);
1012e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
1013fc3a0497SAntti Palosaari int ret;
101477bbb2b0SAntti Palosaari
1015e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "tuner=%d type=%d index=%d\n",
1016d4d20500SAntti Palosaari band->tuner, band->type, band->index);
101777bbb2b0SAntti Palosaari
101877bbb2b0SAntti Palosaari if (band->tuner == 0) {
101977bbb2b0SAntti Palosaari if (band->index >= ARRAY_SIZE(bands_adc))
102077bbb2b0SAntti Palosaari return -EINVAL;
102177bbb2b0SAntti Palosaari
102277bbb2b0SAntti Palosaari *band = bands_adc[band->index];
1023fc3a0497SAntti Palosaari ret = 0;
1024fc3a0497SAntti Palosaari } else if (band->tuner == 1 &&
1025fc3a0497SAntti Palosaari V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, enum_freq_bands)) {
1026fc3a0497SAntti Palosaari ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, enum_freq_bands, band);
102777bbb2b0SAntti Palosaari } else if (band->tuner == 1) {
102877bbb2b0SAntti Palosaari if (band->index >= ARRAY_SIZE(bands_fm))
102977bbb2b0SAntti Palosaari return -EINVAL;
103077bbb2b0SAntti Palosaari
103177bbb2b0SAntti Palosaari *band = bands_fm[band->index];
1032fc3a0497SAntti Palosaari ret = 0;
103377bbb2b0SAntti Palosaari } else {
1034fc3a0497SAntti Palosaari ret = -EINVAL;
103577bbb2b0SAntti Palosaari }
1036fc3a0497SAntti Palosaari return ret;
103777bbb2b0SAntti Palosaari }
103877bbb2b0SAntti Palosaari
rtl2832_sdr_g_frequency(struct file * file,void * priv,struct v4l2_frequency * f)103977bbb2b0SAntti Palosaari static int rtl2832_sdr_g_frequency(struct file *file, void *priv,
104077bbb2b0SAntti Palosaari struct v4l2_frequency *f)
104177bbb2b0SAntti Palosaari {
1042725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = video_drvdata(file);
1043e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
1044fc3a0497SAntti Palosaari int ret;
104577bbb2b0SAntti Palosaari
1046e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "tuner=%d type=%d\n", f->tuner, f->type);
104777bbb2b0SAntti Palosaari
104877bbb2b0SAntti Palosaari if (f->tuner == 0) {
1049725b7f30SAntti Palosaari f->frequency = dev->f_adc;
105077bbb2b0SAntti Palosaari f->type = V4L2_TUNER_ADC;
1051fc3a0497SAntti Palosaari ret = 0;
1052fc3a0497SAntti Palosaari } else if (f->tuner == 1 &&
1053fc3a0497SAntti Palosaari V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, g_frequency)) {
1054fc3a0497SAntti Palosaari f->type = V4L2_TUNER_RF;
1055fc3a0497SAntti Palosaari ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_frequency, f);
105677bbb2b0SAntti Palosaari } else if (f->tuner == 1) {
1057725b7f30SAntti Palosaari f->frequency = dev->f_tuner;
105877bbb2b0SAntti Palosaari f->type = V4L2_TUNER_RF;
1059fc3a0497SAntti Palosaari ret = 0;
106077bbb2b0SAntti Palosaari } else {
1061fc3a0497SAntti Palosaari ret = -EINVAL;
106277bbb2b0SAntti Palosaari }
106377bbb2b0SAntti Palosaari return ret;
106477bbb2b0SAntti Palosaari }
106577bbb2b0SAntti Palosaari
rtl2832_sdr_s_frequency(struct file * file,void * priv,const struct v4l2_frequency * f)106677bbb2b0SAntti Palosaari static int rtl2832_sdr_s_frequency(struct file *file, void *priv,
106777bbb2b0SAntti Palosaari const struct v4l2_frequency *f)
106877bbb2b0SAntti Palosaari {
1069725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = video_drvdata(file);
1070e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
107177bbb2b0SAntti Palosaari int ret, band;
107277bbb2b0SAntti Palosaari
1073e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "tuner=%d type=%d frequency=%u\n",
1074d4d20500SAntti Palosaari f->tuner, f->type, f->frequency);
107577bbb2b0SAntti Palosaari
107677bbb2b0SAntti Palosaari /* ADC band midpoints */
107777bbb2b0SAntti Palosaari #define BAND_ADC_0 ((bands_adc[0].rangehigh + bands_adc[1].rangelow) / 2)
107877bbb2b0SAntti Palosaari #define BAND_ADC_1 ((bands_adc[1].rangehigh + bands_adc[2].rangelow) / 2)
107977bbb2b0SAntti Palosaari
108077bbb2b0SAntti Palosaari if (f->tuner == 0 && f->type == V4L2_TUNER_ADC) {
108177bbb2b0SAntti Palosaari if (f->frequency < BAND_ADC_0)
108277bbb2b0SAntti Palosaari band = 0;
108377bbb2b0SAntti Palosaari else if (f->frequency < BAND_ADC_1)
108477bbb2b0SAntti Palosaari band = 1;
108577bbb2b0SAntti Palosaari else
108677bbb2b0SAntti Palosaari band = 2;
108777bbb2b0SAntti Palosaari
1088725b7f30SAntti Palosaari dev->f_adc = clamp_t(unsigned int, f->frequency,
108977bbb2b0SAntti Palosaari bands_adc[band].rangelow,
109077bbb2b0SAntti Palosaari bands_adc[band].rangehigh);
109177bbb2b0SAntti Palosaari
1092e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "ADC frequency=%u Hz\n", dev->f_adc);
1093725b7f30SAntti Palosaari ret = rtl2832_sdr_set_adc(dev);
1094fc3a0497SAntti Palosaari } else if (f->tuner == 1 &&
1095fc3a0497SAntti Palosaari V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_frequency)) {
1096fc3a0497SAntti Palosaari ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_frequency, f);
109777bbb2b0SAntti Palosaari } else if (f->tuner == 1) {
1098725b7f30SAntti Palosaari dev->f_tuner = clamp_t(unsigned int, f->frequency,
109977bbb2b0SAntti Palosaari bands_fm[0].rangelow,
110077bbb2b0SAntti Palosaari bands_fm[0].rangehigh);
1101e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "RF frequency=%u Hz\n", f->frequency);
110277bbb2b0SAntti Palosaari
1103725b7f30SAntti Palosaari ret = rtl2832_sdr_set_tuner_freq(dev);
110477bbb2b0SAntti Palosaari } else {
110577bbb2b0SAntti Palosaari ret = -EINVAL;
110677bbb2b0SAntti Palosaari }
110777bbb2b0SAntti Palosaari return ret;
110877bbb2b0SAntti Palosaari }
110977bbb2b0SAntti Palosaari
rtl2832_sdr_enum_fmt_sdr_cap(struct file * file,void * priv,struct v4l2_fmtdesc * f)111077bbb2b0SAntti Palosaari static int rtl2832_sdr_enum_fmt_sdr_cap(struct file *file, void *priv,
111177bbb2b0SAntti Palosaari struct v4l2_fmtdesc *f)
111277bbb2b0SAntti Palosaari {
1113725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = video_drvdata(file);
1114e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
111577bbb2b0SAntti Palosaari
1116e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "\n");
111777bbb2b0SAntti Palosaari
1118725b7f30SAntti Palosaari if (f->index >= dev->num_formats)
111977bbb2b0SAntti Palosaari return -EINVAL;
112077bbb2b0SAntti Palosaari
112177bbb2b0SAntti Palosaari f->pixelformat = formats[f->index].pixelformat;
112277bbb2b0SAntti Palosaari
112377bbb2b0SAntti Palosaari return 0;
112477bbb2b0SAntti Palosaari }
112577bbb2b0SAntti Palosaari
rtl2832_sdr_g_fmt_sdr_cap(struct file * file,void * priv,struct v4l2_format * f)112677bbb2b0SAntti Palosaari static int rtl2832_sdr_g_fmt_sdr_cap(struct file *file, void *priv,
112777bbb2b0SAntti Palosaari struct v4l2_format *f)
112877bbb2b0SAntti Palosaari {
1129725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = video_drvdata(file);
1130e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
113177bbb2b0SAntti Palosaari
1132e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "\n");
113377bbb2b0SAntti Palosaari
1134725b7f30SAntti Palosaari f->fmt.sdr.pixelformat = dev->pixelformat;
1135725b7f30SAntti Palosaari f->fmt.sdr.buffersize = dev->buffersize;
1136d57fe404SAntti Palosaari
113777bbb2b0SAntti Palosaari return 0;
113877bbb2b0SAntti Palosaari }
113977bbb2b0SAntti Palosaari
rtl2832_sdr_s_fmt_sdr_cap(struct file * file,void * priv,struct v4l2_format * f)114077bbb2b0SAntti Palosaari static int rtl2832_sdr_s_fmt_sdr_cap(struct file *file, void *priv,
114177bbb2b0SAntti Palosaari struct v4l2_format *f)
114277bbb2b0SAntti Palosaari {
1143725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = video_drvdata(file);
1144e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
1145725b7f30SAntti Palosaari struct vb2_queue *q = &dev->vb_queue;
114677bbb2b0SAntti Palosaari int i;
114777bbb2b0SAntti Palosaari
1148e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "pixelformat fourcc %4.4s\n",
114977bbb2b0SAntti Palosaari (char *)&f->fmt.sdr.pixelformat);
115077bbb2b0SAntti Palosaari
115177bbb2b0SAntti Palosaari if (vb2_is_busy(q))
115277bbb2b0SAntti Palosaari return -EBUSY;
115377bbb2b0SAntti Palosaari
1154725b7f30SAntti Palosaari for (i = 0; i < dev->num_formats; i++) {
115577bbb2b0SAntti Palosaari if (formats[i].pixelformat == f->fmt.sdr.pixelformat) {
1156725b7f30SAntti Palosaari dev->pixelformat = formats[i].pixelformat;
1157725b7f30SAntti Palosaari dev->buffersize = formats[i].buffersize;
1158d57fe404SAntti Palosaari f->fmt.sdr.buffersize = formats[i].buffersize;
115977bbb2b0SAntti Palosaari return 0;
116077bbb2b0SAntti Palosaari }
116177bbb2b0SAntti Palosaari }
116277bbb2b0SAntti Palosaari
1163725b7f30SAntti Palosaari dev->pixelformat = formats[0].pixelformat;
1164725b7f30SAntti Palosaari dev->buffersize = formats[0].buffersize;
1165d57fe404SAntti Palosaari f->fmt.sdr.pixelformat = formats[0].pixelformat;
1166d57fe404SAntti Palosaari f->fmt.sdr.buffersize = formats[0].buffersize;
116777bbb2b0SAntti Palosaari
116877bbb2b0SAntti Palosaari return 0;
116977bbb2b0SAntti Palosaari }
117077bbb2b0SAntti Palosaari
rtl2832_sdr_try_fmt_sdr_cap(struct file * file,void * priv,struct v4l2_format * f)117177bbb2b0SAntti Palosaari static int rtl2832_sdr_try_fmt_sdr_cap(struct file *file, void *priv,
117277bbb2b0SAntti Palosaari struct v4l2_format *f)
117377bbb2b0SAntti Palosaari {
1174725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev = video_drvdata(file);
1175e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
117677bbb2b0SAntti Palosaari int i;
117777bbb2b0SAntti Palosaari
1178e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "pixelformat fourcc %4.4s\n",
117977bbb2b0SAntti Palosaari (char *)&f->fmt.sdr.pixelformat);
118077bbb2b0SAntti Palosaari
1181725b7f30SAntti Palosaari for (i = 0; i < dev->num_formats; i++) {
1182d57fe404SAntti Palosaari if (formats[i].pixelformat == f->fmt.sdr.pixelformat) {
1183d57fe404SAntti Palosaari f->fmt.sdr.buffersize = formats[i].buffersize;
118477bbb2b0SAntti Palosaari return 0;
118577bbb2b0SAntti Palosaari }
1186d57fe404SAntti Palosaari }
118777bbb2b0SAntti Palosaari
118877bbb2b0SAntti Palosaari f->fmt.sdr.pixelformat = formats[0].pixelformat;
1189d57fe404SAntti Palosaari f->fmt.sdr.buffersize = formats[0].buffersize;
119077bbb2b0SAntti Palosaari
119177bbb2b0SAntti Palosaari return 0;
119277bbb2b0SAntti Palosaari }
119377bbb2b0SAntti Palosaari
119477bbb2b0SAntti Palosaari static const struct v4l2_ioctl_ops rtl2832_sdr_ioctl_ops = {
119577bbb2b0SAntti Palosaari .vidioc_querycap = rtl2832_sdr_querycap,
119677bbb2b0SAntti Palosaari
119777bbb2b0SAntti Palosaari .vidioc_enum_fmt_sdr_cap = rtl2832_sdr_enum_fmt_sdr_cap,
119877bbb2b0SAntti Palosaari .vidioc_g_fmt_sdr_cap = rtl2832_sdr_g_fmt_sdr_cap,
119977bbb2b0SAntti Palosaari .vidioc_s_fmt_sdr_cap = rtl2832_sdr_s_fmt_sdr_cap,
120077bbb2b0SAntti Palosaari .vidioc_try_fmt_sdr_cap = rtl2832_sdr_try_fmt_sdr_cap,
120177bbb2b0SAntti Palosaari
120277bbb2b0SAntti Palosaari .vidioc_reqbufs = vb2_ioctl_reqbufs,
120377bbb2b0SAntti Palosaari .vidioc_create_bufs = vb2_ioctl_create_bufs,
120477bbb2b0SAntti Palosaari .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
120577bbb2b0SAntti Palosaari .vidioc_querybuf = vb2_ioctl_querybuf,
120677bbb2b0SAntti Palosaari .vidioc_qbuf = vb2_ioctl_qbuf,
120777bbb2b0SAntti Palosaari .vidioc_dqbuf = vb2_ioctl_dqbuf,
120877bbb2b0SAntti Palosaari
120977bbb2b0SAntti Palosaari .vidioc_streamon = vb2_ioctl_streamon,
121077bbb2b0SAntti Palosaari .vidioc_streamoff = vb2_ioctl_streamoff,
121177bbb2b0SAntti Palosaari
121277bbb2b0SAntti Palosaari .vidioc_g_tuner = rtl2832_sdr_g_tuner,
121377bbb2b0SAntti Palosaari .vidioc_s_tuner = rtl2832_sdr_s_tuner,
121477bbb2b0SAntti Palosaari
121577bbb2b0SAntti Palosaari .vidioc_enum_freq_bands = rtl2832_sdr_enum_freq_bands,
121677bbb2b0SAntti Palosaari .vidioc_g_frequency = rtl2832_sdr_g_frequency,
121777bbb2b0SAntti Palosaari .vidioc_s_frequency = rtl2832_sdr_s_frequency,
121877bbb2b0SAntti Palosaari
121977bbb2b0SAntti Palosaari .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
122077bbb2b0SAntti Palosaari .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
122177bbb2b0SAntti Palosaari .vidioc_log_status = v4l2_ctrl_log_status,
122277bbb2b0SAntti Palosaari };
122377bbb2b0SAntti Palosaari
122477bbb2b0SAntti Palosaari static const struct v4l2_file_operations rtl2832_sdr_fops = {
122577bbb2b0SAntti Palosaari .owner = THIS_MODULE,
122677bbb2b0SAntti Palosaari .open = v4l2_fh_open,
122777bbb2b0SAntti Palosaari .release = vb2_fop_release,
122877bbb2b0SAntti Palosaari .read = vb2_fop_read,
122977bbb2b0SAntti Palosaari .poll = vb2_fop_poll,
123077bbb2b0SAntti Palosaari .mmap = vb2_fop_mmap,
123177bbb2b0SAntti Palosaari .unlocked_ioctl = video_ioctl2,
123277bbb2b0SAntti Palosaari };
123377bbb2b0SAntti Palosaari
123477bbb2b0SAntti Palosaari static struct video_device rtl2832_sdr_template = {
123577bbb2b0SAntti Palosaari .name = "Realtek RTL2832 SDR",
123677bbb2b0SAntti Palosaari .release = video_device_release_empty,
123777bbb2b0SAntti Palosaari .fops = &rtl2832_sdr_fops,
123877bbb2b0SAntti Palosaari .ioctl_ops = &rtl2832_sdr_ioctl_ops,
1239372332b1SHans Verkuil .device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING |
1240372332b1SHans Verkuil V4L2_CAP_READWRITE | V4L2_CAP_TUNER,
124177bbb2b0SAntti Palosaari };
124277bbb2b0SAntti Palosaari
rtl2832_sdr_s_ctrl(struct v4l2_ctrl * ctrl)124377bbb2b0SAntti Palosaari static int rtl2832_sdr_s_ctrl(struct v4l2_ctrl *ctrl)
124477bbb2b0SAntti Palosaari {
1245725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev =
1246725b7f30SAntti Palosaari container_of(ctrl->handler, struct rtl2832_sdr_dev,
124777bbb2b0SAntti Palosaari hdl);
1248e4e78693SAntti Palosaari struct platform_device *pdev = dev->pdev;
12493bda2bf1SAntti Palosaari struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
12503bda2bf1SAntti Palosaari struct dvb_frontend *fe = pdata->dvb_frontend;
125177bbb2b0SAntti Palosaari struct dtv_frontend_properties *c = &fe->dtv_property_cache;
125277bbb2b0SAntti Palosaari int ret;
125377bbb2b0SAntti Palosaari
1254e4e78693SAntti Palosaari dev_dbg(&pdev->dev, "id=%d name=%s val=%d min=%lld max=%lld step=%lld\n",
1255e4e78693SAntti Palosaari ctrl->id, ctrl->name, ctrl->val, ctrl->minimum, ctrl->maximum,
1256e4e78693SAntti Palosaari ctrl->step);
125777bbb2b0SAntti Palosaari
125877bbb2b0SAntti Palosaari switch (ctrl->id) {
125977bbb2b0SAntti Palosaari case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:
126077bbb2b0SAntti Palosaari case V4L2_CID_RF_TUNER_BANDWIDTH:
126177bbb2b0SAntti Palosaari /* TODO: these controls should be moved to tuner drivers */
1262725b7f30SAntti Palosaari if (dev->bandwidth_auto->val) {
126377bbb2b0SAntti Palosaari /* Round towards the closest legal value */
1264725b7f30SAntti Palosaari s32 val = dev->f_adc + div_u64(dev->bandwidth->step, 2);
126577bbb2b0SAntti Palosaari u32 offset;
126677bbb2b0SAntti Palosaari
1267725b7f30SAntti Palosaari val = clamp_t(s32, val, dev->bandwidth->minimum,
1268725b7f30SAntti Palosaari dev->bandwidth->maximum);
1269725b7f30SAntti Palosaari offset = val - dev->bandwidth->minimum;
1270725b7f30SAntti Palosaari offset = dev->bandwidth->step *
1271725b7f30SAntti Palosaari div_u64(offset, dev->bandwidth->step);
1272725b7f30SAntti Palosaari dev->bandwidth->val = dev->bandwidth->minimum + offset;
127377bbb2b0SAntti Palosaari }
1274725b7f30SAntti Palosaari c->bandwidth_hz = dev->bandwidth->val;
127577bbb2b0SAntti Palosaari
1276725b7f30SAntti Palosaari if (!test_bit(POWER_ON, &dev->flags))
127777bbb2b0SAntti Palosaari return 0;
127877bbb2b0SAntti Palosaari
127977bbb2b0SAntti Palosaari if (fe->ops.tuner_ops.set_params)
128077bbb2b0SAntti Palosaari ret = fe->ops.tuner_ops.set_params(fe);
128177bbb2b0SAntti Palosaari else
128277bbb2b0SAntti Palosaari ret = 0;
128377bbb2b0SAntti Palosaari break;
128477bbb2b0SAntti Palosaari default:
128577bbb2b0SAntti Palosaari ret = -EINVAL;
128677bbb2b0SAntti Palosaari }
128777bbb2b0SAntti Palosaari
128877bbb2b0SAntti Palosaari return ret;
128977bbb2b0SAntti Palosaari }
129077bbb2b0SAntti Palosaari
129177bbb2b0SAntti Palosaari static const struct v4l2_ctrl_ops rtl2832_sdr_ctrl_ops = {
129277bbb2b0SAntti Palosaari .s_ctrl = rtl2832_sdr_s_ctrl,
129377bbb2b0SAntti Palosaari };
129477bbb2b0SAntti Palosaari
rtl2832_sdr_video_release(struct v4l2_device * v)129577bbb2b0SAntti Palosaari static void rtl2832_sdr_video_release(struct v4l2_device *v)
129677bbb2b0SAntti Palosaari {
1297725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev =
1298725b7f30SAntti Palosaari container_of(v, struct rtl2832_sdr_dev, v4l2_dev);
129963bdab5dSAntti Palosaari struct platform_device *pdev = dev->pdev;
130063bdab5dSAntti Palosaari
130163bdab5dSAntti Palosaari dev_dbg(&pdev->dev, "\n");
130277bbb2b0SAntti Palosaari
1303725b7f30SAntti Palosaari v4l2_ctrl_handler_free(&dev->hdl);
1304725b7f30SAntti Palosaari v4l2_device_unregister(&dev->v4l2_dev);
1305725b7f30SAntti Palosaari kfree(dev);
130677bbb2b0SAntti Palosaari }
130777bbb2b0SAntti Palosaari
130863bdab5dSAntti Palosaari /* Platform driver interface */
rtl2832_sdr_probe(struct platform_device * pdev)130963bdab5dSAntti Palosaari static int rtl2832_sdr_probe(struct platform_device *pdev)
131077bbb2b0SAntti Palosaari {
1311725b7f30SAntti Palosaari struct rtl2832_sdr_dev *dev;
131263bdab5dSAntti Palosaari struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
131377bbb2b0SAntti Palosaari const struct v4l2_ctrl_ops *ops = &rtl2832_sdr_ctrl_ops;
131463bdab5dSAntti Palosaari struct v4l2_subdev *subdev;
131563bdab5dSAntti Palosaari int ret;
131677bbb2b0SAntti Palosaari
131763bdab5dSAntti Palosaari dev_dbg(&pdev->dev, "\n");
131863bdab5dSAntti Palosaari
131963bdab5dSAntti Palosaari if (!pdata) {
132063bdab5dSAntti Palosaari dev_err(&pdev->dev, "Cannot proceed without platform data\n");
132163bdab5dSAntti Palosaari ret = -EINVAL;
132263bdab5dSAntti Palosaari goto err;
132363bdab5dSAntti Palosaari }
1324d5eec231SAntti Palosaari if (!pdev->dev.parent->driver) {
1325d5eec231SAntti Palosaari dev_dbg(&pdev->dev, "No parent device\n");
1326d5eec231SAntti Palosaari ret = -EINVAL;
1327d5eec231SAntti Palosaari goto err;
1328d5eec231SAntti Palosaari }
1329d5eec231SAntti Palosaari /* try to refcount host drv since we are the consumer */
1330d5eec231SAntti Palosaari if (!try_module_get(pdev->dev.parent->driver->owner)) {
1331d5eec231SAntti Palosaari dev_err(&pdev->dev, "Refcount fail");
1332d5eec231SAntti Palosaari ret = -EINVAL;
1333d5eec231SAntti Palosaari goto err;
1334d5eec231SAntti Palosaari }
133563bdab5dSAntti Palosaari dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1336725b7f30SAntti Palosaari if (dev == NULL) {
133763bdab5dSAntti Palosaari ret = -ENOMEM;
1338d5eec231SAntti Palosaari goto err_module_put;
133977bbb2b0SAntti Palosaari }
134077bbb2b0SAntti Palosaari
134177bbb2b0SAntti Palosaari /* setup the state */
134263bdab5dSAntti Palosaari subdev = pdata->v4l2_subdev;
1343fc3a0497SAntti Palosaari dev->v4l2_subdev = pdata->v4l2_subdev;
134463bdab5dSAntti Palosaari dev->pdev = pdev;
1345e01fc42dSPeter Rosin dev->regmap = pdata->regmap;
134663bdab5dSAntti Palosaari dev->udev = pdata->dvb_usb_device->udev;
1347725b7f30SAntti Palosaari dev->f_adc = bands_adc[0].rangelow;
1348725b7f30SAntti Palosaari dev->f_tuner = bands_fm[0].rangelow;
1349725b7f30SAntti Palosaari dev->pixelformat = formats[0].pixelformat;
1350725b7f30SAntti Palosaari dev->buffersize = formats[0].buffersize;
1351725b7f30SAntti Palosaari dev->num_formats = NUM_FORMATS;
13522fe15e20SMauro Carvalho Chehab if (!rtl2832_sdr_emulated_fmt)
1353725b7f30SAntti Palosaari dev->num_formats -= 1;
135477bbb2b0SAntti Palosaari
1355725b7f30SAntti Palosaari mutex_init(&dev->v4l2_lock);
1356725b7f30SAntti Palosaari mutex_init(&dev->vb_queue_lock);
1357725b7f30SAntti Palosaari spin_lock_init(&dev->queued_bufs_lock);
1358725b7f30SAntti Palosaari INIT_LIST_HEAD(&dev->queued_bufs);
135977bbb2b0SAntti Palosaari
136077bbb2b0SAntti Palosaari /* Init videobuf2 queue structure */
1361725b7f30SAntti Palosaari dev->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
1362725b7f30SAntti Palosaari dev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
1363725b7f30SAntti Palosaari dev->vb_queue.drv_priv = dev;
1364725b7f30SAntti Palosaari dev->vb_queue.buf_struct_size = sizeof(struct rtl2832_sdr_frame_buf);
1365725b7f30SAntti Palosaari dev->vb_queue.ops = &rtl2832_sdr_vb2_ops;
1366725b7f30SAntti Palosaari dev->vb_queue.mem_ops = &vb2_vmalloc_memops;
1367725b7f30SAntti Palosaari dev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1368725b7f30SAntti Palosaari ret = vb2_queue_init(&dev->vb_queue);
136977bbb2b0SAntti Palosaari if (ret) {
137063bdab5dSAntti Palosaari dev_err(&pdev->dev, "Could not initialize vb2 queue\n");
137163bdab5dSAntti Palosaari goto err_kfree;
137277bbb2b0SAntti Palosaari }
137377bbb2b0SAntti Palosaari
137477bbb2b0SAntti Palosaari /* Register controls */
137563bdab5dSAntti Palosaari switch (pdata->tuner) {
137663bdab5dSAntti Palosaari case RTL2832_SDR_TUNER_E4000:
1377725b7f30SAntti Palosaari v4l2_ctrl_handler_init(&dev->hdl, 9);
137863bdab5dSAntti Palosaari if (subdev)
1379da1b1aeaSHans Verkuil v4l2_ctrl_add_handler(&dev->hdl, subdev->ctrl_handler,
1380da1b1aeaSHans Verkuil NULL, true);
138177bbb2b0SAntti Palosaari break;
138263bdab5dSAntti Palosaari case RTL2832_SDR_TUNER_R820T:
138363bdab5dSAntti Palosaari case RTL2832_SDR_TUNER_R828D:
1384725b7f30SAntti Palosaari v4l2_ctrl_handler_init(&dev->hdl, 2);
1385725b7f30SAntti Palosaari dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, ops,
138677bbb2b0SAntti Palosaari V4L2_CID_RF_TUNER_BANDWIDTH_AUTO,
138777bbb2b0SAntti Palosaari 0, 1, 1, 1);
1388725b7f30SAntti Palosaari dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, ops,
138977bbb2b0SAntti Palosaari V4L2_CID_RF_TUNER_BANDWIDTH,
139077bbb2b0SAntti Palosaari 0, 8000000, 100000, 0);
1391725b7f30SAntti Palosaari v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false);
139277bbb2b0SAntti Palosaari break;
139363bdab5dSAntti Palosaari case RTL2832_SDR_TUNER_FC0012:
139463bdab5dSAntti Palosaari case RTL2832_SDR_TUNER_FC0013:
1395725b7f30SAntti Palosaari v4l2_ctrl_handler_init(&dev->hdl, 2);
1396725b7f30SAntti Palosaari dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, ops,
139777bbb2b0SAntti Palosaari V4L2_CID_RF_TUNER_BANDWIDTH_AUTO,
139877bbb2b0SAntti Palosaari 0, 1, 1, 1);
1399725b7f30SAntti Palosaari dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, ops,
140077bbb2b0SAntti Palosaari V4L2_CID_RF_TUNER_BANDWIDTH,
140177bbb2b0SAntti Palosaari 6000000, 8000000, 1000000,
140277bbb2b0SAntti Palosaari 6000000);
1403725b7f30SAntti Palosaari v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false);
140477bbb2b0SAntti Palosaari break;
1405fc3a0497SAntti Palosaari case RTL2832_SDR_TUNER_FC2580:
1406fc3a0497SAntti Palosaari v4l2_ctrl_handler_init(&dev->hdl, 2);
1407fc3a0497SAntti Palosaari if (subdev)
1408fc3a0497SAntti Palosaari v4l2_ctrl_add_handler(&dev->hdl, subdev->ctrl_handler,
1409da1b1aeaSHans Verkuil NULL, true);
1410fc3a0497SAntti Palosaari break;
141177bbb2b0SAntti Palosaari default:
1412725b7f30SAntti Palosaari v4l2_ctrl_handler_init(&dev->hdl, 0);
141363bdab5dSAntti Palosaari dev_err(&pdev->dev, "Unsupported tuner\n");
1414ce5d72b6SEvgeny Novikov ret = -ENODEV;
141563bdab5dSAntti Palosaari goto err_v4l2_ctrl_handler_free;
141677bbb2b0SAntti Palosaari }
1417725b7f30SAntti Palosaari if (dev->hdl.error) {
1418725b7f30SAntti Palosaari ret = dev->hdl.error;
141963bdab5dSAntti Palosaari dev_err(&pdev->dev, "Could not initialize controls\n");
142063bdab5dSAntti Palosaari goto err_v4l2_ctrl_handler_free;
142177bbb2b0SAntti Palosaari }
142277bbb2b0SAntti Palosaari
142377bbb2b0SAntti Palosaari /* Init video_device structure */
1424725b7f30SAntti Palosaari dev->vdev = rtl2832_sdr_template;
1425725b7f30SAntti Palosaari dev->vdev.queue = &dev->vb_queue;
1426725b7f30SAntti Palosaari dev->vdev.queue->lock = &dev->vb_queue_lock;
1427725b7f30SAntti Palosaari video_set_drvdata(&dev->vdev, dev);
142877bbb2b0SAntti Palosaari
142977bbb2b0SAntti Palosaari /* Register the v4l2_device structure */
1430725b7f30SAntti Palosaari dev->v4l2_dev.release = rtl2832_sdr_video_release;
1431e4e78693SAntti Palosaari ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
143277bbb2b0SAntti Palosaari if (ret) {
143363bdab5dSAntti Palosaari dev_err(&pdev->dev, "Failed to register v4l2-device %d\n", ret);
143463bdab5dSAntti Palosaari goto err_v4l2_ctrl_handler_free;
143577bbb2b0SAntti Palosaari }
143677bbb2b0SAntti Palosaari
1437725b7f30SAntti Palosaari dev->v4l2_dev.ctrl_handler = &dev->hdl;
1438725b7f30SAntti Palosaari dev->vdev.v4l2_dev = &dev->v4l2_dev;
1439725b7f30SAntti Palosaari dev->vdev.lock = &dev->v4l2_lock;
1440725b7f30SAntti Palosaari dev->vdev.vfl_dir = VFL_DIR_RX;
144177bbb2b0SAntti Palosaari
1442725b7f30SAntti Palosaari ret = video_register_device(&dev->vdev, VFL_TYPE_SDR, -1);
144377bbb2b0SAntti Palosaari if (ret) {
144463bdab5dSAntti Palosaari dev_err(&pdev->dev, "Failed to register as video device %d\n",
144577bbb2b0SAntti Palosaari ret);
144663bdab5dSAntti Palosaari goto err_v4l2_device_unregister;
144777bbb2b0SAntti Palosaari }
144863bdab5dSAntti Palosaari dev_info(&pdev->dev, "Registered as %s\n",
1449725b7f30SAntti Palosaari video_device_node_name(&dev->vdev));
145063bdab5dSAntti Palosaari dev_info(&pdev->dev, "Realtek RTL2832 SDR attached\n");
145163bdab5dSAntti Palosaari dev_notice(&pdev->dev,
145263bdab5dSAntti Palosaari "SDR API is still slightly experimental and functionality changes may follow\n");
145363bdab5dSAntti Palosaari platform_set_drvdata(pdev, dev);
145463bdab5dSAntti Palosaari return 0;
145563bdab5dSAntti Palosaari err_v4l2_device_unregister:
1456725b7f30SAntti Palosaari v4l2_device_unregister(&dev->v4l2_dev);
145763bdab5dSAntti Palosaari err_v4l2_ctrl_handler_free:
1458725b7f30SAntti Palosaari v4l2_ctrl_handler_free(&dev->hdl);
145963bdab5dSAntti Palosaari err_kfree:
1460725b7f30SAntti Palosaari kfree(dev);
1461d5eec231SAntti Palosaari err_module_put:
1462d5eec231SAntti Palosaari module_put(pdev->dev.parent->driver->owner);
146363bdab5dSAntti Palosaari err:
146463bdab5dSAntti Palosaari return ret;
146577bbb2b0SAntti Palosaari }
146663bdab5dSAntti Palosaari
rtl2832_sdr_remove(struct platform_device * pdev)1467297bb597SUwe Kleine-König static void rtl2832_sdr_remove(struct platform_device *pdev)
146863bdab5dSAntti Palosaari {
146963bdab5dSAntti Palosaari struct rtl2832_sdr_dev *dev = platform_get_drvdata(pdev);
147063bdab5dSAntti Palosaari
147163bdab5dSAntti Palosaari dev_dbg(&pdev->dev, "\n");
147263bdab5dSAntti Palosaari
147363bdab5dSAntti Palosaari mutex_lock(&dev->vb_queue_lock);
147463bdab5dSAntti Palosaari mutex_lock(&dev->v4l2_lock);
147563bdab5dSAntti Palosaari /* No need to keep the urbs around after disconnection */
147663bdab5dSAntti Palosaari dev->udev = NULL;
147763bdab5dSAntti Palosaari v4l2_device_disconnect(&dev->v4l2_dev);
147863bdab5dSAntti Palosaari video_unregister_device(&dev->vdev);
147963bdab5dSAntti Palosaari mutex_unlock(&dev->v4l2_lock);
148063bdab5dSAntti Palosaari mutex_unlock(&dev->vb_queue_lock);
148163bdab5dSAntti Palosaari v4l2_device_put(&dev->v4l2_dev);
1482d5eec231SAntti Palosaari module_put(pdev->dev.parent->driver->owner);
148363bdab5dSAntti Palosaari }
148463bdab5dSAntti Palosaari
148563bdab5dSAntti Palosaari static struct platform_driver rtl2832_sdr_driver = {
148663bdab5dSAntti Palosaari .driver = {
148763bdab5dSAntti Palosaari .name = "rtl2832_sdr",
148863bdab5dSAntti Palosaari },
148963bdab5dSAntti Palosaari .probe = rtl2832_sdr_probe,
1490297bb597SUwe Kleine-König .remove_new = rtl2832_sdr_remove,
149163bdab5dSAntti Palosaari };
149263bdab5dSAntti Palosaari module_platform_driver(rtl2832_sdr_driver);
149377bbb2b0SAntti Palosaari
149477bbb2b0SAntti Palosaari MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
149577bbb2b0SAntti Palosaari MODULE_DESCRIPTION("Realtek RTL2832 SDR driver");
149677bbb2b0SAntti Palosaari MODULE_LICENSE("GPL");
1497