Move rtl2832_sdr driver module from staging to media.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
help
Say Y when you want to support this frontend.
+config DVB_RTL2832_SDR
+ tristate "Realtek RTL2832 SDR"
+ depends on DVB_CORE && I2C && VIDEO_V4L2
+ select DVB_RTL2832
+ select VIDEOBUF2_VMALLOC
+ default m if !MEDIA_SUBDRV_AUTOSELECT
+ help
+ Say Y when you want to support this SDR module.
+
config DVB_SI2168
tristate "Silicon Labs Si2168"
depends on DVB_CORE && I2C && I2C_MUX
ccflags-y += -I$(srctree)/drivers/media/dvb-core/
ccflags-y += -I$(srctree)/drivers/media/tuners/
+# FIXME: RTL2832 SDR driver uses power management directly from USB IF driver
+ifdef CONFIG_DVB_RTL2832_SDR
+ ccflags-y += -I$(srctree)/drivers/media/usb/dvb-usb-v2
+endif
+
stb0899-objs := stb0899_drv.o stb0899_algo.o
stv0900-objs := stv0900_core.o stv0900_sw.o
drxd-objs := drxd_firm.o drxd_hard.o
obj-$(CONFIG_DVB_TDA10071) += tda10071.o
obj-$(CONFIG_DVB_RTL2830) += rtl2830.o
obj-$(CONFIG_DVB_RTL2832) += rtl2832.o
+obj-$(CONFIG_DVB_RTL2832_SDR) += rtl2832_sdr.o
obj-$(CONFIG_DVB_M88RS2000) += m88rs2000.o
obj-$(CONFIG_DVB_AF9033) += af9033.o
--- /dev/null
+/*
+ * 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 "dvb_frontend.h"
+#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-vmalloc.h>
+
+#include <linux/jiffies.h>
+#include <linux/math64.h>
+
+#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;
+};
+
+static struct rtl2832_sdr_format formats[] = {
+ {
+ .name = "IQ U8",
+ .pixelformat = V4L2_SDR_FMT_CU8,
+ }, {
+ .name = "IQ U16LE (emulated)",
+ .pixelformat = V4L2_SDR_FMT_CU16LE,
+ },
+};
+
+static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats);
+
+/* intermediate buffers with raw data from the USB device */
+struct rtl2832_sdr_frame_buf {
+ struct vb2_buffer vb; /* common v4l buffer stuff -- must be first */
+ struct list_head list;
+};
+
+struct rtl2832_sdr_state {
+#define POWER_ON (1 << 1)
+#define URB_BUF (1 << 2)
+ unsigned long flags;
+
+ const struct rtl2832_config *cfg;
+ struct dvb_frontend *fe;
+ struct dvb_usb_device *d;
+ struct i2c_adapter *i2c;
+ u8 bank;
+
+ struct video_device vdev;
+ struct v4l2_device v4l2_dev;
+
+ /* 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;
+
+ /* 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;
+};
+
+/* write multiple hardware registers */
+static int rtl2832_sdr_wr(struct rtl2832_sdr_state *s, u8 reg, const u8 *val,
+ int len)
+{
+ int ret;
+#define MAX_WR_LEN 24
+#define MAX_WR_XFER_LEN (MAX_WR_LEN + 1)
+ u8 buf[MAX_WR_XFER_LEN];
+ struct i2c_msg msg[1] = {
+ {
+ .addr = s->cfg->i2c_addr,
+ .flags = 0,
+ .len = 1 + len,
+ .buf = buf,
+ }
+ };
+
+ if (WARN_ON(len > MAX_WR_LEN))
+ return -EINVAL;
+
+ buf[0] = reg;
+ memcpy(&buf[1], val, len);
+
+ ret = i2c_transfer(s->i2c, msg, 1);
+ if (ret == 1) {
+ ret = 0;
+ } else {
+ dev_err(&s->i2c->dev,
+ "%s: I2C wr failed=%d reg=%02x len=%d\n",
+ KBUILD_MODNAME, ret, reg, len);
+ ret = -EREMOTEIO;
+ }
+ return ret;
+}
+
+/* read multiple hardware registers */
+static int rtl2832_sdr_rd(struct rtl2832_sdr_state *s, u8 reg, u8 *val, int len)
+{
+ int ret;
+ struct i2c_msg msg[2] = {
+ {
+ .addr = s->cfg->i2c_addr,
+ .flags = 0,
+ .len = 1,
+ .buf = ®,
+ }, {
+ .addr = s->cfg->i2c_addr,
+ .flags = I2C_M_RD,
+ .len = len,
+ .buf = val,
+ }
+ };
+
+ ret = i2c_transfer(s->i2c, msg, 2);
+ if (ret == 2) {
+ ret = 0;
+ } else {
+ dev_err(&s->i2c->dev,
+ "%s: I2C rd failed=%d reg=%02x len=%d\n",
+ KBUILD_MODNAME, ret, reg, len);
+ ret = -EREMOTEIO;
+ }
+ return ret;
+}
+
+/* write multiple registers */
+static int rtl2832_sdr_wr_regs(struct rtl2832_sdr_state *s, u16 reg,
+ const u8 *val, int len)
+{
+ int ret;
+ u8 reg2 = (reg >> 0) & 0xff;
+ u8 bank = (reg >> 8) & 0xff;
+
+ /* switch bank if needed */
+ if (bank != s->bank) {
+ ret = rtl2832_sdr_wr(s, 0x00, &bank, 1);
+ if (ret)
+ return ret;
+
+ s->bank = bank;
+ }
+
+ return rtl2832_sdr_wr(s, reg2, val, len);
+}
+
+/* read multiple registers */
+static int rtl2832_sdr_rd_regs(struct rtl2832_sdr_state *s, u16 reg, u8 *val,
+ int len)
+{
+ int ret;
+ u8 reg2 = (reg >> 0) & 0xff;
+ u8 bank = (reg >> 8) & 0xff;
+
+ /* switch bank if needed */
+ if (bank != s->bank) {
+ ret = rtl2832_sdr_wr(s, 0x00, &bank, 1);
+ if (ret)
+ return ret;
+
+ s->bank = bank;
+ }
+
+ return rtl2832_sdr_rd(s, reg2, val, len);
+}
+
+/* write single register */
+static int rtl2832_sdr_wr_reg(struct rtl2832_sdr_state *s, u16 reg, u8 val)
+{
+ return rtl2832_sdr_wr_regs(s, reg, &val, 1);
+}
+
+#if 0
+/* read single register */
+static int rtl2832_sdr_rd_reg(struct rtl2832_sdr_state *s, u16 reg, u8 *val)
+{
+ return rtl2832_sdr_rd_regs(s, reg, val, 1);
+}
+#endif
+
+/* write single register with mask */
+static int rtl2832_sdr_wr_reg_mask(struct rtl2832_sdr_state *s, u16 reg,
+ u8 val, u8 mask)
+{
+ int ret;
+ u8 tmp;
+
+ /* no need for read if whole reg is written */
+ if (mask != 0xff) {
+ ret = rtl2832_sdr_rd_regs(s, reg, &tmp, 1);
+ if (ret)
+ return ret;
+
+ val &= mask;
+ tmp &= ~mask;
+ val |= tmp;
+ }
+
+ return rtl2832_sdr_wr_regs(s, reg, &val, 1);
+}
+
+#if 0
+/* read single register with mask */
+static int rtl2832_sdr_rd_reg_mask(struct rtl2832_sdr_state *s, u16 reg,
+ u8 *val, u8 mask)
+{
+ int ret, i;
+ u8 tmp;
+
+ ret = rtl2832_sdr_rd_regs(s, reg, &tmp, 1);
+ if (ret)
+ return ret;
+
+ tmp &= mask;
+
+ /* find position of the first bit */
+ for (i = 0; i < 8; i++) {
+ if ((mask >> i) & 0x01)
+ break;
+ }
+ *val = tmp >> i;
+
+ return 0;
+}
+#endif
+
+/* Private functions */
+static struct rtl2832_sdr_frame_buf *rtl2832_sdr_get_next_fill_buf(
+ struct rtl2832_sdr_state *s)
+{
+ unsigned long flags = 0;
+ struct rtl2832_sdr_frame_buf *buf = NULL;
+
+ spin_lock_irqsave(&s->queued_bufs_lock, flags);
+ if (list_empty(&s->queued_bufs))
+ goto leave;
+
+ buf = list_entry(s->queued_bufs.next,
+ struct rtl2832_sdr_frame_buf, list);
+ list_del(&buf->list);
+leave:
+ spin_unlock_irqrestore(&s->queued_bufs_lock, flags);
+ return buf;
+}
+
+static unsigned int rtl2832_sdr_convert_stream(struct rtl2832_sdr_state *s,
+ void *dst, const u8 *src, unsigned int src_len)
+{
+ unsigned int dst_len;
+
+ if (s->pixelformat == V4L2_SDR_FMT_CU8) {
+ /* native stream, no need to convert */
+ memcpy(dst, src, src_len);
+ dst_len = src_len;
+ } else if (s->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 samping rate and output it in 10 seconds intervals */
+ if (unlikely(time_is_before_jiffies(s->jiffies_next))) {
+#define MSECS 10000UL
+ unsigned int samples = s->sample - s->sample_measured;
+
+ s->jiffies_next = jiffies + msecs_to_jiffies(MSECS);
+ s->sample_measured = s->sample;
+ dev_dbg(&s->udev->dev,
+ "slen=%d samples=%u msecs=%lu sampling rate=%lu\n",
+ src_len, samples, MSECS,
+ samples * 1000UL / MSECS);
+ }
+
+ /* total number of I+Q pairs */
+ s->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_state *s = urb->context;
+ struct rtl2832_sdr_frame_buf *fbuf;
+
+ dev_dbg_ratelimited(&s->udev->dev,
+ "%s: status=%d length=%d/%d errors=%d\n",
+ __func__, 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(&s->udev->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(s);
+ if (unlikely(fbuf == NULL)) {
+ s->vb_full++;
+ dev_notice_ratelimited(&s->udev->dev,
+ "videobuf is full, %d packets dropped\n",
+ s->vb_full);
+ goto skip;
+ }
+
+ /* fill framebuffer */
+ ptr = vb2_plane_vaddr(&fbuf->vb, 0);
+ len = rtl2832_sdr_convert_stream(s, ptr, urb->transfer_buffer,
+ urb->actual_length);
+ vb2_set_plane_payload(&fbuf->vb, 0, len);
+ v4l2_get_timestamp(&fbuf->vb.v4l2_buf.timestamp);
+ fbuf->vb.v4l2_buf.sequence = s->sequence++;
+ vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE);
+ }
+skip:
+ usb_submit_urb(urb, GFP_ATOMIC);
+}
+
+static int rtl2832_sdr_kill_urbs(struct rtl2832_sdr_state *s)
+{
+ int i;
+
+ for (i = s->urbs_submitted - 1; i >= 0; i--) {
+ dev_dbg(&s->udev->dev, "%s: kill urb=%d\n", __func__, i);
+ /* stop the URB */
+ usb_kill_urb(s->urb_list[i]);
+ }
+ s->urbs_submitted = 0;
+
+ return 0;
+}
+
+static int rtl2832_sdr_submit_urbs(struct rtl2832_sdr_state *s)
+{
+ int i, ret;
+
+ for (i = 0; i < s->urbs_initialized; i++) {
+ dev_dbg(&s->udev->dev, "%s: submit urb=%d\n", __func__, i);
+ ret = usb_submit_urb(s->urb_list[i], GFP_ATOMIC);
+ if (ret) {
+ dev_err(&s->udev->dev,
+ "Could not submit urb no. %d - get them all back\n",
+ i);
+ rtl2832_sdr_kill_urbs(s);
+ return ret;
+ }
+ s->urbs_submitted++;
+ }
+
+ return 0;
+}
+
+static int rtl2832_sdr_free_stream_bufs(struct rtl2832_sdr_state *s)
+{
+ if (s->flags & USB_STATE_URB_BUF) {
+ while (s->buf_num) {
+ s->buf_num--;
+ dev_dbg(&s->udev->dev, "%s: free buf=%d\n",
+ __func__, s->buf_num);
+ usb_free_coherent(s->udev, s->buf_size,
+ s->buf_list[s->buf_num],
+ s->dma_addr[s->buf_num]);
+ }
+ }
+ s->flags &= ~USB_STATE_URB_BUF;
+
+ return 0;
+}
+
+static int rtl2832_sdr_alloc_stream_bufs(struct rtl2832_sdr_state *s)
+{
+ s->buf_num = 0;
+ s->buf_size = BULK_BUFFER_SIZE;
+
+ dev_dbg(&s->udev->dev,
+ "%s: all in all I will use %u bytes for streaming\n",
+ __func__, MAX_BULK_BUFS * BULK_BUFFER_SIZE);
+
+ for (s->buf_num = 0; s->buf_num < MAX_BULK_BUFS; s->buf_num++) {
+ s->buf_list[s->buf_num] = usb_alloc_coherent(s->udev,
+ BULK_BUFFER_SIZE, GFP_ATOMIC,
+ &s->dma_addr[s->buf_num]);
+ if (!s->buf_list[s->buf_num]) {
+ dev_dbg(&s->udev->dev, "%s: alloc buf=%d failed\n",
+ __func__, s->buf_num);
+ rtl2832_sdr_free_stream_bufs(s);
+ return -ENOMEM;
+ }
+
+ dev_dbg(&s->udev->dev, "%s: alloc buf=%d %p (dma %llu)\n",
+ __func__, s->buf_num,
+ s->buf_list[s->buf_num],
+ (long long)s->dma_addr[s->buf_num]);
+ s->flags |= USB_STATE_URB_BUF;
+ }
+
+ return 0;
+}
+
+static int rtl2832_sdr_free_urbs(struct rtl2832_sdr_state *s)
+{
+ int i;
+
+ rtl2832_sdr_kill_urbs(s);
+
+ for (i = s->urbs_initialized - 1; i >= 0; i--) {
+ if (s->urb_list[i]) {
+ dev_dbg(&s->udev->dev, "%s: free urb=%d\n",
+ __func__, i);
+ /* free the URBs */
+ usb_free_urb(s->urb_list[i]);
+ }
+ }
+ s->urbs_initialized = 0;
+
+ return 0;
+}
+
+static int rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_state *s)
+{
+ int i, j;
+
+ /* allocate the URBs */
+ for (i = 0; i < MAX_BULK_BUFS; i++) {
+ dev_dbg(&s->udev->dev, "%s: alloc urb=%d\n", __func__, i);
+ s->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!s->urb_list[i]) {
+ dev_dbg(&s->udev->dev, "%s: failed\n", __func__);
+ for (j = 0; j < i; j++)
+ usb_free_urb(s->urb_list[j]);
+ return -ENOMEM;
+ }
+ usb_fill_bulk_urb(s->urb_list[i],
+ s->udev,
+ usb_rcvbulkpipe(s->udev, 0x81),
+ s->buf_list[i],
+ BULK_BUFFER_SIZE,
+ rtl2832_sdr_urb_complete, s);
+
+ s->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
+ s->urb_list[i]->transfer_dma = s->dma_addr[i];
+ s->urbs_initialized++;
+ }
+
+ return 0;
+}
+
+/* Must be called with vb_queue_lock hold */
+static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_state *s)
+{
+ unsigned long flags = 0;
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ spin_lock_irqsave(&s->queued_bufs_lock, flags);
+ while (!list_empty(&s->queued_bufs)) {
+ struct rtl2832_sdr_frame_buf *buf;
+
+ buf = list_entry(s->queued_bufs.next,
+ struct rtl2832_sdr_frame_buf, list);
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ }
+ spin_unlock_irqrestore(&s->queued_bufs_lock, flags);
+}
+
+/* The user yanked out the cable... */
+static void rtl2832_sdr_release_sec(struct dvb_frontend *fe)
+{
+ struct rtl2832_sdr_state *s = fe->sec_priv;
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ mutex_lock(&s->vb_queue_lock);
+ mutex_lock(&s->v4l2_lock);
+ /* No need to keep the urbs around after disconnection */
+ s->udev = NULL;
+
+ v4l2_device_disconnect(&s->v4l2_dev);
+ video_unregister_device(&s->vdev);
+ mutex_unlock(&s->v4l2_lock);
+ mutex_unlock(&s->vb_queue_lock);
+
+ v4l2_device_put(&s->v4l2_dev);
+
+ fe->sec_priv = NULL;
+}
+
+static int rtl2832_sdr_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap)
+{
+ struct rtl2832_sdr_state *s = video_drvdata(file);
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver));
+ strlcpy(cap->card, s->vdev.name, sizeof(cap->card));
+ usb_make_path(s->udev, cap->bus_info, sizeof(cap->bus_info));
+ cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING |
+ V4L2_CAP_READWRITE | V4L2_CAP_TUNER;
+ cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+ return 0;
+}
+
+/* Videobuf2 operations */
+static int rtl2832_sdr_queue_setup(struct vb2_queue *vq,
+ const struct v4l2_format *fmt, unsigned int *nbuffers,
+ unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[])
+{
+ struct rtl2832_sdr_state *s = vb2_get_drv_priv(vq);
+
+ dev_dbg(&s->udev->dev, "%s: *nbuffers=%d\n", __func__, *nbuffers);
+
+ /* Need at least 8 buffers */
+ if (vq->num_buffers + *nbuffers < 8)
+ *nbuffers = 8 - vq->num_buffers;
+ *nplanes = 1;
+ /* 2 = max 16-bit sample returned */
+ sizes[0] = PAGE_ALIGN(BULK_BUFFER_SIZE * 2);
+ dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n",
+ __func__, *nbuffers, sizes[0]);
+ return 0;
+}
+
+static int rtl2832_sdr_buf_prepare(struct vb2_buffer *vb)
+{
+ struct rtl2832_sdr_state *s = vb2_get_drv_priv(vb->vb2_queue);
+
+ /* Don't allow queing new buffers after device disconnection */
+ if (!s->udev)
+ return -ENODEV;
+
+ return 0;
+}
+
+static void rtl2832_sdr_buf_queue(struct vb2_buffer *vb)
+{
+ struct rtl2832_sdr_state *s = vb2_get_drv_priv(vb->vb2_queue);
+ struct rtl2832_sdr_frame_buf *buf =
+ container_of(vb, struct rtl2832_sdr_frame_buf, vb);
+ unsigned long flags = 0;
+
+ /* Check the device has not disconnected between prep and queuing */
+ if (!s->udev) {
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ return;
+ }
+
+ spin_lock_irqsave(&s->queued_bufs_lock, flags);
+ list_add_tail(&buf->list, &s->queued_bufs);
+ spin_unlock_irqrestore(&s->queued_bufs_lock, flags);
+}
+
+static int rtl2832_sdr_set_adc(struct rtl2832_sdr_state *s)
+{
+ struct dvb_frontend *fe = s->fe;
+ int ret;
+ unsigned int f_sr, f_if;
+ u8 buf[4], u8tmp1, u8tmp2;
+ u64 u64tmp;
+ u32 u32tmp;
+
+ dev_dbg(&s->udev->dev, "%s: f_adc=%u\n", __func__, s->f_adc);
+
+ if (!test_bit(POWER_ON, &s->flags))
+ return 0;
+
+ if (s->f_adc == 0)
+ return 0;
+
+ f_sr = s->f_adc;
+
+ ret = rtl2832_sdr_wr_regs(s, 0x13e, "\x00\x00", 2);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_wr_regs(s, 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 % s->cfg->xtal;
+ u64tmp *= 0x400000;
+ u64tmp = div_u64(u64tmp, s->cfg->xtal);
+ u64tmp = -u64tmp;
+ u32tmp = u64tmp & 0x3fffff;
+
+ dev_dbg(&s->udev->dev, "%s: f_if=%u if_ctl=%08x\n",
+ __func__, f_if, u32tmp);
+
+ buf[0] = (u32tmp >> 16) & 0xff;
+ buf[1] = (u32tmp >> 8) & 0xff;
+ buf[2] = (u32tmp >> 0) & 0xff;
+
+ ret = rtl2832_sdr_wr_regs(s, 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 = rtl2832_sdr_wr_reg(s, 0x1b1, u8tmp1);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_wr_reg(s, 0x008, u8tmp2);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_wr_reg(s, 0x006, 0x80);
+ if (ret)
+ goto err;
+
+ /* program sampling rate (resampling down) */
+ u32tmp = div_u64(s->cfg->xtal * 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 = rtl2832_sdr_wr_regs(s, 0x19f, buf, 4);
+ if (ret)
+ goto err;
+
+ /* low-pass filter */
+ ret = rtl2832_sdr_wr_regs(s, 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 = rtl2832_sdr_wr_regs(s, 0x017, "\x11\x10", 2);
+ if (ret)
+ goto err;
+
+ /* mode */
+ ret = rtl2832_sdr_wr_regs(s, 0x019, "\x05", 1);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_wr_regs(s, 0x01a, "\x1b\x16\x0d\x06\x01\xff", 6);
+ if (ret)
+ goto err;
+
+ /* FSM */
+ ret = rtl2832_sdr_wr_regs(s, 0x192, "\x00\xf0\x0f", 3);
+ if (ret)
+ goto err;
+
+ /* PID filter */
+ ret = rtl2832_sdr_wr_regs(s, 0x061, "\x60", 1);
+ if (ret)
+ goto err;
+
+ /* used RF tuner based settings */
+ switch (s->cfg->tuner) {
+ case RTL2832_TUNER_E4000:
+ ret = rtl2832_sdr_wr_regs(s, 0x112, "\x5a", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x102, "\x40", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x103, "\x5a", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1c7, "\x30", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x104, "\xd0", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x105, "\xbe", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1c8, "\x18", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x106, "\x35", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1c9, "\x21", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1ca, "\x21", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1cb, "\x00", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x107, "\x40", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1cd, "\x10", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1ce, "\x10", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x108, "\x80", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x109, "\x7f", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x10a, "\x80", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x10b, "\x7f", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x011, "\xd4", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1e5, "\xf0", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1d9, "\x00", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1db, "\x00", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1dd, "\x14", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1de, "\xec", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1d8, "\x0c", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1e6, "\x02", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1d7, "\x09", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x00d, "\x83", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x010, "\x49", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x00d, "\x87", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x00d, "\x85", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x013, "\x02", 1);
+ break;
+ case RTL2832_TUNER_FC0012:
+ case RTL2832_TUNER_FC0013:
+ ret = rtl2832_sdr_wr_regs(s, 0x112, "\x5a", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x102, "\x40", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x103, "\x5a", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1c7, "\x2c", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x104, "\xcc", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x105, "\xbe", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1c8, "\x16", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x106, "\x35", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1c9, "\x21", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1ca, "\x21", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1cb, "\x00", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x107, "\x40", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1cd, "\x10", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1ce, "\x10", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x108, "\x80", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x109, "\x7f", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x10a, "\x80", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x10b, "\x7f", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x011, "\xe9\xbf", 2);
+ ret = rtl2832_sdr_wr_regs(s, 0x1e5, "\xf0", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1d9, "\x00", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1db, "\x00", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1dd, "\x11", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1de, "\xef", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1d8, "\x0c", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1e6, "\x02", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1d7, "\x09", 1);
+ break;
+ case RTL2832_TUNER_R820T:
+ ret = rtl2832_sdr_wr_regs(s, 0x112, "\x5a", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x102, "\x40", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x115, "\x01", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x103, "\x80", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1c7, "\x24", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x104, "\xcc", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x105, "\xbe", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1c8, "\x14", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x106, "\x35", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1c9, "\x21", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1ca, "\x21", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1cb, "\x00", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x107, "\x40", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1cd, "\x10", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x1ce, "\x10", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x108, "\x80", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x109, "\x7f", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x10a, "\x80", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x10b, "\x7f", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+ ret = rtl2832_sdr_wr_regs(s, 0x011, "\xf4", 1);
+ break;
+ default:
+ dev_notice(&s->udev->dev, "Unsupported tuner\n");
+ }
+
+ /* software reset */
+ ret = rtl2832_sdr_wr_reg_mask(s, 0x101, 0x04, 0x04);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_wr_reg_mask(s, 0x101, 0x00, 0x04);
+ if (ret)
+ goto err;
+err:
+ return ret;
+};
+
+static void rtl2832_sdr_unset_adc(struct rtl2832_sdr_state *s)
+{
+ int ret;
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ /* PID filter */
+ ret = rtl2832_sdr_wr_regs(s, 0x061, "\xe0", 1);
+ if (ret)
+ goto err;
+
+ /* mode */
+ ret = rtl2832_sdr_wr_regs(s, 0x019, "\x20", 1);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_wr_regs(s, 0x017, "\x11\x10", 2);
+ if (ret)
+ goto err;
+
+ /* FSM */
+ ret = rtl2832_sdr_wr_regs(s, 0x192, "\x00\x0f\xff", 3);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_wr_regs(s, 0x13e, "\x40\x00", 2);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_wr_regs(s, 0x115, "\x06\x3f\xce\xcc", 4);
+ if (ret)
+ goto err;
+err:
+ return;
+};
+
+static int rtl2832_sdr_set_tuner_freq(struct rtl2832_sdr_state *s)
+{
+ struct dvb_frontend *fe = s->fe;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ struct v4l2_ctrl *bandwidth_auto;
+ struct v4l2_ctrl *bandwidth;
+
+ /*
+ * tuner RF (Hz)
+ */
+ if (s->f_tuner == 0)
+ return 0;
+
+ /*
+ * bandwidth (Hz)
+ */
+ bandwidth_auto = v4l2_ctrl_find(&s->hdl,
+ V4L2_CID_RF_TUNER_BANDWIDTH_AUTO);
+ bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH);
+ if (v4l2_ctrl_g_ctrl(bandwidth_auto)) {
+ c->bandwidth_hz = s->f_adc;
+ v4l2_ctrl_s_ctrl(bandwidth, s->f_adc);
+ } else {
+ c->bandwidth_hz = v4l2_ctrl_g_ctrl(bandwidth);
+ }
+
+ c->frequency = s->f_tuner;
+ c->delivery_system = SYS_DVBT;
+
+ dev_dbg(&s->udev->dev, "%s: frequency=%u bandwidth=%d\n",
+ __func__, c->frequency, c->bandwidth_hz);
+
+ if (!test_bit(POWER_ON, &s->flags))
+ return 0;
+
+ 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_state *s)
+{
+ struct dvb_frontend *fe = s->fe;
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ if (fe->ops.tuner_ops.init)
+ fe->ops.tuner_ops.init(fe);
+
+ return 0;
+};
+
+static void rtl2832_sdr_unset_tuner(struct rtl2832_sdr_state *s)
+{
+ struct dvb_frontend *fe = s->fe;
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ 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_state *s = vb2_get_drv_priv(vq);
+ int ret;
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ if (!s->udev)
+ return -ENODEV;
+
+ if (mutex_lock_interruptible(&s->v4l2_lock))
+ return -ERESTARTSYS;
+
+ if (s->d->props->power_ctrl)
+ s->d->props->power_ctrl(s->d, 1);
+
+ set_bit(POWER_ON, &s->flags);
+
+ ret = rtl2832_sdr_set_tuner(s);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_set_tuner_freq(s);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_set_adc(s);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_alloc_stream_bufs(s);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_sdr_alloc_urbs(s);
+ if (ret)
+ goto err;
+
+ s->sequence = 0;
+
+ ret = rtl2832_sdr_submit_urbs(s);
+ if (ret)
+ goto err;
+
+err:
+ mutex_unlock(&s->v4l2_lock);
+
+ return ret;
+}
+
+static void rtl2832_sdr_stop_streaming(struct vb2_queue *vq)
+{
+ struct rtl2832_sdr_state *s = vb2_get_drv_priv(vq);
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ mutex_lock(&s->v4l2_lock);
+
+ rtl2832_sdr_kill_urbs(s);
+ rtl2832_sdr_free_urbs(s);
+ rtl2832_sdr_free_stream_bufs(s);
+ rtl2832_sdr_cleanup_queued_bufs(s);
+ rtl2832_sdr_unset_adc(s);
+ rtl2832_sdr_unset_tuner(s);
+
+ clear_bit(POWER_ON, &s->flags);
+
+ if (s->d->props->power_ctrl)
+ s->d->props->power_ctrl(s->d, 0);
+
+ mutex_unlock(&s->v4l2_lock);
+}
+
+static 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_state *s = video_drvdata(file);
+
+ dev_dbg(&s->udev->dev, "%s: index=%d type=%d\n",
+ __func__, 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;
+ } 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;
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int rtl2832_sdr_s_tuner(struct file *file, void *priv,
+ const struct v4l2_tuner *v)
+{
+ struct rtl2832_sdr_state *s = video_drvdata(file);
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ if (v->index > 1)
+ return -EINVAL;
+ return 0;
+}
+
+static int rtl2832_sdr_enum_freq_bands(struct file *file, void *priv,
+ struct v4l2_frequency_band *band)
+{
+ struct rtl2832_sdr_state *s = video_drvdata(file);
+
+ dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d index=%d\n",
+ __func__, band->tuner, band->type, band->index);
+
+ if (band->tuner == 0) {
+ if (band->index >= ARRAY_SIZE(bands_adc))
+ return -EINVAL;
+
+ *band = bands_adc[band->index];
+ } else if (band->tuner == 1) {
+ if (band->index >= ARRAY_SIZE(bands_fm))
+ return -EINVAL;
+
+ *band = bands_fm[band->index];
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int rtl2832_sdr_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct rtl2832_sdr_state *s = video_drvdata(file);
+ int ret = 0;
+
+ dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d\n",
+ __func__, f->tuner, f->type);
+
+ if (f->tuner == 0) {
+ f->frequency = s->f_adc;
+ f->type = V4L2_TUNER_ADC;
+ } else if (f->tuner == 1) {
+ f->frequency = s->f_tuner;
+ f->type = V4L2_TUNER_RF;
+ } else {
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static int rtl2832_sdr_s_frequency(struct file *file, void *priv,
+ const struct v4l2_frequency *f)
+{
+ struct rtl2832_sdr_state *s = video_drvdata(file);
+ int ret, band;
+
+ dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d frequency=%u\n",
+ __func__, 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;
+
+ s->f_adc = clamp_t(unsigned int, f->frequency,
+ bands_adc[band].rangelow,
+ bands_adc[band].rangehigh);
+
+ dev_dbg(&s->udev->dev, "%s: ADC frequency=%u Hz\n",
+ __func__, s->f_adc);
+ ret = rtl2832_sdr_set_adc(s);
+ } else if (f->tuner == 1) {
+ s->f_tuner = clamp_t(unsigned int, f->frequency,
+ bands_fm[0].rangelow,
+ bands_fm[0].rangehigh);
+ dev_dbg(&s->udev->dev, "%s: RF frequency=%u Hz\n",
+ __func__, f->frequency);
+
+ ret = rtl2832_sdr_set_tuner_freq(s);
+ } 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_state *s = video_drvdata(file);
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ if (f->index >= NUM_FORMATS)
+ return -EINVAL;
+
+ strlcpy(f->description, formats[f->index].name, sizeof(f->description));
+ f->pixelformat = formats[f->index].pixelformat;
+
+ return 0;
+}
+
+static int rtl2832_sdr_g_fmt_sdr_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct rtl2832_sdr_state *s = video_drvdata(file);
+
+ dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+ f->fmt.sdr.pixelformat = s->pixelformat;
+ 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_state *s = video_drvdata(file);
+ struct vb2_queue *q = &s->vb_queue;
+ int i;
+
+ dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__,
+ (char *)&f->fmt.sdr.pixelformat);
+
+ if (vb2_is_busy(q))
+ return -EBUSY;
+
+ memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved));
+ for (i = 0; i < NUM_FORMATS; i++) {
+ if (formats[i].pixelformat == f->fmt.sdr.pixelformat) {
+ s->pixelformat = f->fmt.sdr.pixelformat;
+ return 0;
+ }
+ }
+
+ f->fmt.sdr.pixelformat = formats[0].pixelformat;
+ s->pixelformat = formats[0].pixelformat;
+
+ return 0;
+}
+
+static int rtl2832_sdr_try_fmt_sdr_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct rtl2832_sdr_state *s = video_drvdata(file);
+ int i;
+
+ dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__,
+ (char *)&f->fmt.sdr.pixelformat);
+
+ memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved));
+ for (i = 0; i < NUM_FORMATS; i++) {
+ if (formats[i].pixelformat == f->fmt.sdr.pixelformat)
+ return 0;
+ }
+
+ f->fmt.sdr.pixelformat = formats[0].pixelformat;
+
+ return 0;
+}
+
+static 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_state *s =
+ container_of(ctrl->handler, struct rtl2832_sdr_state,
+ hdl);
+ struct dvb_frontend *fe = s->fe;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int ret;
+
+ dev_dbg(&s->udev->dev,
+ "%s: id=%d name=%s val=%d min=%lld max=%lld step=%lld\n",
+ __func__, 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 (s->bandwidth_auto->val) {
+ /* Round towards the closest legal value */
+ s32 val = s->f_adc + s->bandwidth->step / 2;
+ u32 offset;
+
+ val = clamp_t(s32, val, s->bandwidth->minimum,
+ s->bandwidth->maximum);
+ offset = val - s->bandwidth->minimum;
+ offset = s->bandwidth->step *
+ (offset / s->bandwidth->step);
+ s->bandwidth->val = s->bandwidth->minimum + offset;
+ }
+
+ c->bandwidth_hz = s->bandwidth->val;
+
+ if (!test_bit(POWER_ON, &s->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_state *s =
+ container_of(v, struct rtl2832_sdr_state, v4l2_dev);
+
+ v4l2_ctrl_handler_free(&s->hdl);
+ v4l2_device_unregister(&s->v4l2_dev);
+ kfree(s);
+}
+
+struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
+ struct v4l2_subdev *sd)
+{
+ int ret;
+ struct rtl2832_sdr_state *s;
+ const struct v4l2_ctrl_ops *ops = &rtl2832_sdr_ctrl_ops;
+ struct dvb_usb_device *d = i2c_get_adapdata(i2c);
+
+ s = kzalloc(sizeof(struct rtl2832_sdr_state), GFP_KERNEL);
+ if (s == NULL) {
+ dev_err(&d->udev->dev,
+ "Could not allocate memory for rtl2832_sdr_state\n");
+ return NULL;
+ }
+
+ /* setup the state */
+ s->fe = fe;
+ s->d = d;
+ s->udev = d->udev;
+ s->i2c = i2c;
+ s->cfg = cfg;
+ s->f_adc = bands_adc[0].rangelow;
+ s->f_tuner = bands_fm[0].rangelow;
+ s->pixelformat = V4L2_SDR_FMT_CU8;
+
+ mutex_init(&s->v4l2_lock);
+ mutex_init(&s->vb_queue_lock);
+ spin_lock_init(&s->queued_bufs_lock);
+ INIT_LIST_HEAD(&s->queued_bufs);
+
+ /* Init videobuf2 queue structure */
+ s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
+ s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
+ s->vb_queue.drv_priv = s;
+ s->vb_queue.buf_struct_size = sizeof(struct rtl2832_sdr_frame_buf);
+ s->vb_queue.ops = &rtl2832_sdr_vb2_ops;
+ s->vb_queue.mem_ops = &vb2_vmalloc_memops;
+ s->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ ret = vb2_queue_init(&s->vb_queue);
+ if (ret) {
+ dev_err(&s->udev->dev, "Could not initialize vb2 queue\n");
+ goto err_free_mem;
+ }
+
+ /* Register controls */
+ switch (s->cfg->tuner) {
+ case RTL2832_TUNER_E4000:
+ v4l2_ctrl_handler_init(&s->hdl, 9);
+ if (sd)
+ v4l2_ctrl_add_handler(&s->hdl, sd->ctrl_handler, NULL);
+ break;
+ case RTL2832_TUNER_R820T:
+ v4l2_ctrl_handler_init(&s->hdl, 2);
+ s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, ops,
+ V4L2_CID_RF_TUNER_BANDWIDTH_AUTO,
+ 0, 1, 1, 1);
+ s->bandwidth = v4l2_ctrl_new_std(&s->hdl, ops,
+ V4L2_CID_RF_TUNER_BANDWIDTH,
+ 0, 8000000, 100000, 0);
+ v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
+ break;
+ case RTL2832_TUNER_FC0012:
+ case RTL2832_TUNER_FC0013:
+ v4l2_ctrl_handler_init(&s->hdl, 2);
+ s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, ops,
+ V4L2_CID_RF_TUNER_BANDWIDTH_AUTO,
+ 0, 1, 1, 1);
+ s->bandwidth = v4l2_ctrl_new_std(&s->hdl, ops,
+ V4L2_CID_RF_TUNER_BANDWIDTH,
+ 6000000, 8000000, 1000000,
+ 6000000);
+ v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
+ break;
+ default:
+ v4l2_ctrl_handler_init(&s->hdl, 0);
+ dev_notice(&s->udev->dev, "%s: Unsupported tuner\n",
+ KBUILD_MODNAME);
+ goto err_free_controls;
+ }
+
+ if (s->hdl.error) {
+ ret = s->hdl.error;
+ dev_err(&s->udev->dev, "Could not initialize controls\n");
+ goto err_free_controls;
+ }
+
+ /* Init video_device structure */
+ s->vdev = rtl2832_sdr_template;
+ s->vdev.queue = &s->vb_queue;
+ s->vdev.queue->lock = &s->vb_queue_lock;
+ video_set_drvdata(&s->vdev, s);
+
+ /* Register the v4l2_device structure */
+ s->v4l2_dev.release = rtl2832_sdr_video_release;
+ ret = v4l2_device_register(&s->udev->dev, &s->v4l2_dev);
+ if (ret) {
+ dev_err(&s->udev->dev,
+ "Failed to register v4l2-device (%d)\n", ret);
+ goto err_free_controls;
+ }
+
+ s->v4l2_dev.ctrl_handler = &s->hdl;
+ s->vdev.v4l2_dev = &s->v4l2_dev;
+ s->vdev.lock = &s->v4l2_lock;
+ s->vdev.vfl_dir = VFL_DIR_RX;
+
+ ret = video_register_device(&s->vdev, VFL_TYPE_SDR, -1);
+ if (ret) {
+ dev_err(&s->udev->dev,
+ "Failed to register as video device (%d)\n",
+ ret);
+ goto err_unregister_v4l2_dev;
+ }
+ dev_info(&s->udev->dev, "Registered as %s\n",
+ video_device_node_name(&s->vdev));
+
+ fe->sec_priv = s;
+ fe->ops.release_sec = rtl2832_sdr_release_sec;
+
+ dev_info(&s->i2c->dev, "%s: Realtek RTL2832 SDR attached\n",
+ KBUILD_MODNAME);
+ return fe;
+
+err_unregister_v4l2_dev:
+ v4l2_device_unregister(&s->v4l2_dev);
+err_free_controls:
+ v4l2_ctrl_handler_free(&s->hdl);
+err_free_mem:
+ kfree(s);
+ return NULL;
+}
+EXPORT_SYMBOL(rtl2832_sdr_attach);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("Realtek RTL2832 SDR driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * 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
+ *
+ * TODO:
+ * Help is very highly welcome for these + all the others you could imagine:
+ * - move controls to V4L2 API
+ * - use libv4l2 for stream format conversions
+ * - gr-kernel: switch to v4l2_mmap (current read eats a lot of cpu)
+ * - SDRSharp support
+ */
+
+#ifndef RTL2832_SDR_H
+#define RTL2832_SDR_H
+
+#include <linux/kconfig.h>
+#include <media/v4l2-subdev.h>
+
+/* for config struct */
+#include "rtl2832.h"
+
+#if IS_ENABLED(CONFIG_DVB_RTL2832_SDR)
+extern struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
+ struct v4l2_subdev *sd);
+#else
+static inline struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
+ struct v4l2_subdev *sd)
+{
+ dev_warn(&i2c->dev, "%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+#endif
+
+#endif /* RTL2832_SDR_H */
depends on DVB_USB_V2 && I2C_MUX
select DVB_RTL2830
select DVB_RTL2832
+ select DVB_RTL2832_SDR if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_QT1010 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_MT2060 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_MXL5005S if MEDIA_SUBDRV_AUTOSELECT
source "drivers/staging/media/omap4iss/Kconfig"
-source "drivers/staging/media/rtl2832u_sdr/Kconfig"
-
# Keep LIRC at the end, as it has sub-menus
source "drivers/staging/media/lirc/Kconfig"
obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/
obj-$(CONFIG_VIDEO_OMAP2) += omap24xx/
obj-$(CONFIG_VIDEO_TCM825X) += omap24xx/
-obj-$(CONFIG_DVB_RTL2832_SDR) += rtl2832u_sdr/
+++ /dev/null
-config DVB_RTL2832_SDR
- tristate "Realtek RTL2832 SDR"
- depends on USB && DVB_CORE && I2C && VIDEO_V4L2 && DVB_USB_RTL28XXU
- select DVB_RTL2832
- select VIDEOBUF2_VMALLOC
- default m if !MEDIA_SUBDRV_AUTOSELECT
-
+++ /dev/null
-obj-$(CONFIG_DVB_RTL2832_SDR) += rtl2832_sdr.o
-
-ccflags-y += -Idrivers/media/dvb-core
-ccflags-y += -Idrivers/media/dvb-frontends
-ccflags-y += -Idrivers/media/tuners
-ccflags-y += -Idrivers/media/usb/dvb-usb-v2
+++ /dev/null
-/*
- * 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 "dvb_frontend.h"
-#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-vmalloc.h>
-
-#include <linux/jiffies.h>
-#include <linux/math64.h>
-
-#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;
-};
-
-static struct rtl2832_sdr_format formats[] = {
- {
- .name = "IQ U8",
- .pixelformat = V4L2_SDR_FMT_CU8,
- }, {
- .name = "IQ U16LE (emulated)",
- .pixelformat = V4L2_SDR_FMT_CU16LE,
- },
-};
-
-static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats);
-
-/* intermediate buffers with raw data from the USB device */
-struct rtl2832_sdr_frame_buf {
- struct vb2_buffer vb; /* common v4l buffer stuff -- must be first */
- struct list_head list;
-};
-
-struct rtl2832_sdr_state {
-#define POWER_ON (1 << 1)
-#define URB_BUF (1 << 2)
- unsigned long flags;
-
- const struct rtl2832_config *cfg;
- struct dvb_frontend *fe;
- struct dvb_usb_device *d;
- struct i2c_adapter *i2c;
- u8 bank;
-
- struct video_device vdev;
- struct v4l2_device v4l2_dev;
-
- /* 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;
-
- /* 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;
-};
-
-/* write multiple hardware registers */
-static int rtl2832_sdr_wr(struct rtl2832_sdr_state *s, u8 reg, const u8 *val,
- int len)
-{
- int ret;
-#define MAX_WR_LEN 24
-#define MAX_WR_XFER_LEN (MAX_WR_LEN + 1)
- u8 buf[MAX_WR_XFER_LEN];
- struct i2c_msg msg[1] = {
- {
- .addr = s->cfg->i2c_addr,
- .flags = 0,
- .len = 1 + len,
- .buf = buf,
- }
- };
-
- if (WARN_ON(len > MAX_WR_LEN))
- return -EINVAL;
-
- buf[0] = reg;
- memcpy(&buf[1], val, len);
-
- ret = i2c_transfer(s->i2c, msg, 1);
- if (ret == 1) {
- ret = 0;
- } else {
- dev_err(&s->i2c->dev,
- "%s: I2C wr failed=%d reg=%02x len=%d\n",
- KBUILD_MODNAME, ret, reg, len);
- ret = -EREMOTEIO;
- }
- return ret;
-}
-
-/* read multiple hardware registers */
-static int rtl2832_sdr_rd(struct rtl2832_sdr_state *s, u8 reg, u8 *val, int len)
-{
- int ret;
- struct i2c_msg msg[2] = {
- {
- .addr = s->cfg->i2c_addr,
- .flags = 0,
- .len = 1,
- .buf = ®,
- }, {
- .addr = s->cfg->i2c_addr,
- .flags = I2C_M_RD,
- .len = len,
- .buf = val,
- }
- };
-
- ret = i2c_transfer(s->i2c, msg, 2);
- if (ret == 2) {
- ret = 0;
- } else {
- dev_err(&s->i2c->dev,
- "%s: I2C rd failed=%d reg=%02x len=%d\n",
- KBUILD_MODNAME, ret, reg, len);
- ret = -EREMOTEIO;
- }
- return ret;
-}
-
-/* write multiple registers */
-static int rtl2832_sdr_wr_regs(struct rtl2832_sdr_state *s, u16 reg,
- const u8 *val, int len)
-{
- int ret;
- u8 reg2 = (reg >> 0) & 0xff;
- u8 bank = (reg >> 8) & 0xff;
-
- /* switch bank if needed */
- if (bank != s->bank) {
- ret = rtl2832_sdr_wr(s, 0x00, &bank, 1);
- if (ret)
- return ret;
-
- s->bank = bank;
- }
-
- return rtl2832_sdr_wr(s, reg2, val, len);
-}
-
-/* read multiple registers */
-static int rtl2832_sdr_rd_regs(struct rtl2832_sdr_state *s, u16 reg, u8 *val,
- int len)
-{
- int ret;
- u8 reg2 = (reg >> 0) & 0xff;
- u8 bank = (reg >> 8) & 0xff;
-
- /* switch bank if needed */
- if (bank != s->bank) {
- ret = rtl2832_sdr_wr(s, 0x00, &bank, 1);
- if (ret)
- return ret;
-
- s->bank = bank;
- }
-
- return rtl2832_sdr_rd(s, reg2, val, len);
-}
-
-/* write single register */
-static int rtl2832_sdr_wr_reg(struct rtl2832_sdr_state *s, u16 reg, u8 val)
-{
- return rtl2832_sdr_wr_regs(s, reg, &val, 1);
-}
-
-#if 0
-/* read single register */
-static int rtl2832_sdr_rd_reg(struct rtl2832_sdr_state *s, u16 reg, u8 *val)
-{
- return rtl2832_sdr_rd_regs(s, reg, val, 1);
-}
-#endif
-
-/* write single register with mask */
-static int rtl2832_sdr_wr_reg_mask(struct rtl2832_sdr_state *s, u16 reg,
- u8 val, u8 mask)
-{
- int ret;
- u8 tmp;
-
- /* no need for read if whole reg is written */
- if (mask != 0xff) {
- ret = rtl2832_sdr_rd_regs(s, reg, &tmp, 1);
- if (ret)
- return ret;
-
- val &= mask;
- tmp &= ~mask;
- val |= tmp;
- }
-
- return rtl2832_sdr_wr_regs(s, reg, &val, 1);
-}
-
-#if 0
-/* read single register with mask */
-static int rtl2832_sdr_rd_reg_mask(struct rtl2832_sdr_state *s, u16 reg,
- u8 *val, u8 mask)
-{
- int ret, i;
- u8 tmp;
-
- ret = rtl2832_sdr_rd_regs(s, reg, &tmp, 1);
- if (ret)
- return ret;
-
- tmp &= mask;
-
- /* find position of the first bit */
- for (i = 0; i < 8; i++) {
- if ((mask >> i) & 0x01)
- break;
- }
- *val = tmp >> i;
-
- return 0;
-}
-#endif
-
-/* Private functions */
-static struct rtl2832_sdr_frame_buf *rtl2832_sdr_get_next_fill_buf(
- struct rtl2832_sdr_state *s)
-{
- unsigned long flags = 0;
- struct rtl2832_sdr_frame_buf *buf = NULL;
-
- spin_lock_irqsave(&s->queued_bufs_lock, flags);
- if (list_empty(&s->queued_bufs))
- goto leave;
-
- buf = list_entry(s->queued_bufs.next,
- struct rtl2832_sdr_frame_buf, list);
- list_del(&buf->list);
-leave:
- spin_unlock_irqrestore(&s->queued_bufs_lock, flags);
- return buf;
-}
-
-static unsigned int rtl2832_sdr_convert_stream(struct rtl2832_sdr_state *s,
- void *dst, const u8 *src, unsigned int src_len)
-{
- unsigned int dst_len;
-
- if (s->pixelformat == V4L2_SDR_FMT_CU8) {
- /* native stream, no need to convert */
- memcpy(dst, src, src_len);
- dst_len = src_len;
- } else if (s->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 samping rate and output it in 10 seconds intervals */
- if (unlikely(time_is_before_jiffies(s->jiffies_next))) {
-#define MSECS 10000UL
- unsigned int samples = s->sample - s->sample_measured;
-
- s->jiffies_next = jiffies + msecs_to_jiffies(MSECS);
- s->sample_measured = s->sample;
- dev_dbg(&s->udev->dev,
- "slen=%d samples=%u msecs=%lu sampling rate=%lu\n",
- src_len, samples, MSECS,
- samples * 1000UL / MSECS);
- }
-
- /* total number of I+Q pairs */
- s->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_state *s = urb->context;
- struct rtl2832_sdr_frame_buf *fbuf;
-
- dev_dbg_ratelimited(&s->udev->dev,
- "%s: status=%d length=%d/%d errors=%d\n",
- __func__, 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(&s->udev->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(s);
- if (unlikely(fbuf == NULL)) {
- s->vb_full++;
- dev_notice_ratelimited(&s->udev->dev,
- "videobuf is full, %d packets dropped\n",
- s->vb_full);
- goto skip;
- }
-
- /* fill framebuffer */
- ptr = vb2_plane_vaddr(&fbuf->vb, 0);
- len = rtl2832_sdr_convert_stream(s, ptr, urb->transfer_buffer,
- urb->actual_length);
- vb2_set_plane_payload(&fbuf->vb, 0, len);
- v4l2_get_timestamp(&fbuf->vb.v4l2_buf.timestamp);
- fbuf->vb.v4l2_buf.sequence = s->sequence++;
- vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE);
- }
-skip:
- usb_submit_urb(urb, GFP_ATOMIC);
-}
-
-static int rtl2832_sdr_kill_urbs(struct rtl2832_sdr_state *s)
-{
- int i;
-
- for (i = s->urbs_submitted - 1; i >= 0; i--) {
- dev_dbg(&s->udev->dev, "%s: kill urb=%d\n", __func__, i);
- /* stop the URB */
- usb_kill_urb(s->urb_list[i]);
- }
- s->urbs_submitted = 0;
-
- return 0;
-}
-
-static int rtl2832_sdr_submit_urbs(struct rtl2832_sdr_state *s)
-{
- int i, ret;
-
- for (i = 0; i < s->urbs_initialized; i++) {
- dev_dbg(&s->udev->dev, "%s: submit urb=%d\n", __func__, i);
- ret = usb_submit_urb(s->urb_list[i], GFP_ATOMIC);
- if (ret) {
- dev_err(&s->udev->dev,
- "Could not submit urb no. %d - get them all back\n",
- i);
- rtl2832_sdr_kill_urbs(s);
- return ret;
- }
- s->urbs_submitted++;
- }
-
- return 0;
-}
-
-static int rtl2832_sdr_free_stream_bufs(struct rtl2832_sdr_state *s)
-{
- if (s->flags & USB_STATE_URB_BUF) {
- while (s->buf_num) {
- s->buf_num--;
- dev_dbg(&s->udev->dev, "%s: free buf=%d\n",
- __func__, s->buf_num);
- usb_free_coherent(s->udev, s->buf_size,
- s->buf_list[s->buf_num],
- s->dma_addr[s->buf_num]);
- }
- }
- s->flags &= ~USB_STATE_URB_BUF;
-
- return 0;
-}
-
-static int rtl2832_sdr_alloc_stream_bufs(struct rtl2832_sdr_state *s)
-{
- s->buf_num = 0;
- s->buf_size = BULK_BUFFER_SIZE;
-
- dev_dbg(&s->udev->dev,
- "%s: all in all I will use %u bytes for streaming\n",
- __func__, MAX_BULK_BUFS * BULK_BUFFER_SIZE);
-
- for (s->buf_num = 0; s->buf_num < MAX_BULK_BUFS; s->buf_num++) {
- s->buf_list[s->buf_num] = usb_alloc_coherent(s->udev,
- BULK_BUFFER_SIZE, GFP_ATOMIC,
- &s->dma_addr[s->buf_num]);
- if (!s->buf_list[s->buf_num]) {
- dev_dbg(&s->udev->dev, "%s: alloc buf=%d failed\n",
- __func__, s->buf_num);
- rtl2832_sdr_free_stream_bufs(s);
- return -ENOMEM;
- }
-
- dev_dbg(&s->udev->dev, "%s: alloc buf=%d %p (dma %llu)\n",
- __func__, s->buf_num,
- s->buf_list[s->buf_num],
- (long long)s->dma_addr[s->buf_num]);
- s->flags |= USB_STATE_URB_BUF;
- }
-
- return 0;
-}
-
-static int rtl2832_sdr_free_urbs(struct rtl2832_sdr_state *s)
-{
- int i;
-
- rtl2832_sdr_kill_urbs(s);
-
- for (i = s->urbs_initialized - 1; i >= 0; i--) {
- if (s->urb_list[i]) {
- dev_dbg(&s->udev->dev, "%s: free urb=%d\n",
- __func__, i);
- /* free the URBs */
- usb_free_urb(s->urb_list[i]);
- }
- }
- s->urbs_initialized = 0;
-
- return 0;
-}
-
-static int rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_state *s)
-{
- int i, j;
-
- /* allocate the URBs */
- for (i = 0; i < MAX_BULK_BUFS; i++) {
- dev_dbg(&s->udev->dev, "%s: alloc urb=%d\n", __func__, i);
- s->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC);
- if (!s->urb_list[i]) {
- dev_dbg(&s->udev->dev, "%s: failed\n", __func__);
- for (j = 0; j < i; j++)
- usb_free_urb(s->urb_list[j]);
- return -ENOMEM;
- }
- usb_fill_bulk_urb(s->urb_list[i],
- s->udev,
- usb_rcvbulkpipe(s->udev, 0x81),
- s->buf_list[i],
- BULK_BUFFER_SIZE,
- rtl2832_sdr_urb_complete, s);
-
- s->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
- s->urb_list[i]->transfer_dma = s->dma_addr[i];
- s->urbs_initialized++;
- }
-
- return 0;
-}
-
-/* Must be called with vb_queue_lock hold */
-static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_state *s)
-{
- unsigned long flags = 0;
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- spin_lock_irqsave(&s->queued_bufs_lock, flags);
- while (!list_empty(&s->queued_bufs)) {
- struct rtl2832_sdr_frame_buf *buf;
-
- buf = list_entry(s->queued_bufs.next,
- struct rtl2832_sdr_frame_buf, list);
- list_del(&buf->list);
- vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
- }
- spin_unlock_irqrestore(&s->queued_bufs_lock, flags);
-}
-
-/* The user yanked out the cable... */
-static void rtl2832_sdr_release_sec(struct dvb_frontend *fe)
-{
- struct rtl2832_sdr_state *s = fe->sec_priv;
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- mutex_lock(&s->vb_queue_lock);
- mutex_lock(&s->v4l2_lock);
- /* No need to keep the urbs around after disconnection */
- s->udev = NULL;
-
- v4l2_device_disconnect(&s->v4l2_dev);
- video_unregister_device(&s->vdev);
- mutex_unlock(&s->v4l2_lock);
- mutex_unlock(&s->vb_queue_lock);
-
- v4l2_device_put(&s->v4l2_dev);
-
- fe->sec_priv = NULL;
-}
-
-static int rtl2832_sdr_querycap(struct file *file, void *fh,
- struct v4l2_capability *cap)
-{
- struct rtl2832_sdr_state *s = video_drvdata(file);
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver));
- strlcpy(cap->card, s->vdev.name, sizeof(cap->card));
- usb_make_path(s->udev, cap->bus_info, sizeof(cap->bus_info));
- cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING |
- V4L2_CAP_READWRITE | V4L2_CAP_TUNER;
- cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
- return 0;
-}
-
-/* Videobuf2 operations */
-static int rtl2832_sdr_queue_setup(struct vb2_queue *vq,
- const struct v4l2_format *fmt, unsigned int *nbuffers,
- unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[])
-{
- struct rtl2832_sdr_state *s = vb2_get_drv_priv(vq);
-
- dev_dbg(&s->udev->dev, "%s: *nbuffers=%d\n", __func__, *nbuffers);
-
- /* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
- *nplanes = 1;
- /* 2 = max 16-bit sample returned */
- sizes[0] = PAGE_ALIGN(BULK_BUFFER_SIZE * 2);
- dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n",
- __func__, *nbuffers, sizes[0]);
- return 0;
-}
-
-static int rtl2832_sdr_buf_prepare(struct vb2_buffer *vb)
-{
- struct rtl2832_sdr_state *s = vb2_get_drv_priv(vb->vb2_queue);
-
- /* Don't allow queing new buffers after device disconnection */
- if (!s->udev)
- return -ENODEV;
-
- return 0;
-}
-
-static void rtl2832_sdr_buf_queue(struct vb2_buffer *vb)
-{
- struct rtl2832_sdr_state *s = vb2_get_drv_priv(vb->vb2_queue);
- struct rtl2832_sdr_frame_buf *buf =
- container_of(vb, struct rtl2832_sdr_frame_buf, vb);
- unsigned long flags = 0;
-
- /* Check the device has not disconnected between prep and queuing */
- if (!s->udev) {
- vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
- return;
- }
-
- spin_lock_irqsave(&s->queued_bufs_lock, flags);
- list_add_tail(&buf->list, &s->queued_bufs);
- spin_unlock_irqrestore(&s->queued_bufs_lock, flags);
-}
-
-static int rtl2832_sdr_set_adc(struct rtl2832_sdr_state *s)
-{
- struct dvb_frontend *fe = s->fe;
- int ret;
- unsigned int f_sr, f_if;
- u8 buf[4], u8tmp1, u8tmp2;
- u64 u64tmp;
- u32 u32tmp;
-
- dev_dbg(&s->udev->dev, "%s: f_adc=%u\n", __func__, s->f_adc);
-
- if (!test_bit(POWER_ON, &s->flags))
- return 0;
-
- if (s->f_adc == 0)
- return 0;
-
- f_sr = s->f_adc;
-
- ret = rtl2832_sdr_wr_regs(s, 0x13e, "\x00\x00", 2);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_wr_regs(s, 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 % s->cfg->xtal;
- u64tmp *= 0x400000;
- u64tmp = div_u64(u64tmp, s->cfg->xtal);
- u64tmp = -u64tmp;
- u32tmp = u64tmp & 0x3fffff;
-
- dev_dbg(&s->udev->dev, "%s: f_if=%u if_ctl=%08x\n",
- __func__, f_if, u32tmp);
-
- buf[0] = (u32tmp >> 16) & 0xff;
- buf[1] = (u32tmp >> 8) & 0xff;
- buf[2] = (u32tmp >> 0) & 0xff;
-
- ret = rtl2832_sdr_wr_regs(s, 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 = rtl2832_sdr_wr_reg(s, 0x1b1, u8tmp1);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_wr_reg(s, 0x008, u8tmp2);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_wr_reg(s, 0x006, 0x80);
- if (ret)
- goto err;
-
- /* program sampling rate (resampling down) */
- u32tmp = div_u64(s->cfg->xtal * 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 = rtl2832_sdr_wr_regs(s, 0x19f, buf, 4);
- if (ret)
- goto err;
-
- /* low-pass filter */
- ret = rtl2832_sdr_wr_regs(s, 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 = rtl2832_sdr_wr_regs(s, 0x017, "\x11\x10", 2);
- if (ret)
- goto err;
-
- /* mode */
- ret = rtl2832_sdr_wr_regs(s, 0x019, "\x05", 1);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_wr_regs(s, 0x01a, "\x1b\x16\x0d\x06\x01\xff", 6);
- if (ret)
- goto err;
-
- /* FSM */
- ret = rtl2832_sdr_wr_regs(s, 0x192, "\x00\xf0\x0f", 3);
- if (ret)
- goto err;
-
- /* PID filter */
- ret = rtl2832_sdr_wr_regs(s, 0x061, "\x60", 1);
- if (ret)
- goto err;
-
- /* used RF tuner based settings */
- switch (s->cfg->tuner) {
- case RTL2832_TUNER_E4000:
- ret = rtl2832_sdr_wr_regs(s, 0x112, "\x5a", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x102, "\x40", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x103, "\x5a", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1c7, "\x30", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x104, "\xd0", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x105, "\xbe", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1c8, "\x18", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x106, "\x35", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1c9, "\x21", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1ca, "\x21", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1cb, "\x00", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x107, "\x40", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1cd, "\x10", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1ce, "\x10", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x108, "\x80", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x109, "\x7f", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x10a, "\x80", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x10b, "\x7f", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x011, "\xd4", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1e5, "\xf0", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1d9, "\x00", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1db, "\x00", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1dd, "\x14", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1de, "\xec", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1d8, "\x0c", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1e6, "\x02", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1d7, "\x09", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x00d, "\x83", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x010, "\x49", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x00d, "\x87", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x00d, "\x85", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x013, "\x02", 1);
- break;
- case RTL2832_TUNER_FC0012:
- case RTL2832_TUNER_FC0013:
- ret = rtl2832_sdr_wr_regs(s, 0x112, "\x5a", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x102, "\x40", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x103, "\x5a", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1c7, "\x2c", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x104, "\xcc", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x105, "\xbe", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1c8, "\x16", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x106, "\x35", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1c9, "\x21", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1ca, "\x21", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1cb, "\x00", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x107, "\x40", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1cd, "\x10", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1ce, "\x10", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x108, "\x80", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x109, "\x7f", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x10a, "\x80", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x10b, "\x7f", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x011, "\xe9\xbf", 2);
- ret = rtl2832_sdr_wr_regs(s, 0x1e5, "\xf0", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1d9, "\x00", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1db, "\x00", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1dd, "\x11", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1de, "\xef", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1d8, "\x0c", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1e6, "\x02", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1d7, "\x09", 1);
- break;
- case RTL2832_TUNER_R820T:
- ret = rtl2832_sdr_wr_regs(s, 0x112, "\x5a", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x102, "\x40", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x115, "\x01", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x103, "\x80", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1c7, "\x24", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x104, "\xcc", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x105, "\xbe", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1c8, "\x14", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x106, "\x35", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1c9, "\x21", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1ca, "\x21", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1cb, "\x00", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x107, "\x40", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1cd, "\x10", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x1ce, "\x10", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x108, "\x80", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x109, "\x7f", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x10a, "\x80", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x10b, "\x7f", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
- ret = rtl2832_sdr_wr_regs(s, 0x011, "\xf4", 1);
- break;
- default:
- dev_notice(&s->udev->dev, "Unsupported tuner\n");
- }
-
- /* software reset */
- ret = rtl2832_sdr_wr_reg_mask(s, 0x101, 0x04, 0x04);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_wr_reg_mask(s, 0x101, 0x00, 0x04);
- if (ret)
- goto err;
-err:
- return ret;
-};
-
-static void rtl2832_sdr_unset_adc(struct rtl2832_sdr_state *s)
-{
- int ret;
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- /* PID filter */
- ret = rtl2832_sdr_wr_regs(s, 0x061, "\xe0", 1);
- if (ret)
- goto err;
-
- /* mode */
- ret = rtl2832_sdr_wr_regs(s, 0x019, "\x20", 1);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_wr_regs(s, 0x017, "\x11\x10", 2);
- if (ret)
- goto err;
-
- /* FSM */
- ret = rtl2832_sdr_wr_regs(s, 0x192, "\x00\x0f\xff", 3);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_wr_regs(s, 0x13e, "\x40\x00", 2);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_wr_regs(s, 0x115, "\x06\x3f\xce\xcc", 4);
- if (ret)
- goto err;
-err:
- return;
-};
-
-static int rtl2832_sdr_set_tuner_freq(struct rtl2832_sdr_state *s)
-{
- struct dvb_frontend *fe = s->fe;
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- struct v4l2_ctrl *bandwidth_auto;
- struct v4l2_ctrl *bandwidth;
-
- /*
- * tuner RF (Hz)
- */
- if (s->f_tuner == 0)
- return 0;
-
- /*
- * bandwidth (Hz)
- */
- bandwidth_auto = v4l2_ctrl_find(&s->hdl,
- V4L2_CID_RF_TUNER_BANDWIDTH_AUTO);
- bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH);
- if (v4l2_ctrl_g_ctrl(bandwidth_auto)) {
- c->bandwidth_hz = s->f_adc;
- v4l2_ctrl_s_ctrl(bandwidth, s->f_adc);
- } else {
- c->bandwidth_hz = v4l2_ctrl_g_ctrl(bandwidth);
- }
-
- c->frequency = s->f_tuner;
- c->delivery_system = SYS_DVBT;
-
- dev_dbg(&s->udev->dev, "%s: frequency=%u bandwidth=%d\n",
- __func__, c->frequency, c->bandwidth_hz);
-
- if (!test_bit(POWER_ON, &s->flags))
- return 0;
-
- 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_state *s)
-{
- struct dvb_frontend *fe = s->fe;
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- if (fe->ops.tuner_ops.init)
- fe->ops.tuner_ops.init(fe);
-
- return 0;
-};
-
-static void rtl2832_sdr_unset_tuner(struct rtl2832_sdr_state *s)
-{
- struct dvb_frontend *fe = s->fe;
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- 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_state *s = vb2_get_drv_priv(vq);
- int ret;
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- if (!s->udev)
- return -ENODEV;
-
- if (mutex_lock_interruptible(&s->v4l2_lock))
- return -ERESTARTSYS;
-
- if (s->d->props->power_ctrl)
- s->d->props->power_ctrl(s->d, 1);
-
- set_bit(POWER_ON, &s->flags);
-
- ret = rtl2832_sdr_set_tuner(s);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_set_tuner_freq(s);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_set_adc(s);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_alloc_stream_bufs(s);
- if (ret)
- goto err;
-
- ret = rtl2832_sdr_alloc_urbs(s);
- if (ret)
- goto err;
-
- s->sequence = 0;
-
- ret = rtl2832_sdr_submit_urbs(s);
- if (ret)
- goto err;
-
-err:
- mutex_unlock(&s->v4l2_lock);
-
- return ret;
-}
-
-static void rtl2832_sdr_stop_streaming(struct vb2_queue *vq)
-{
- struct rtl2832_sdr_state *s = vb2_get_drv_priv(vq);
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- mutex_lock(&s->v4l2_lock);
-
- rtl2832_sdr_kill_urbs(s);
- rtl2832_sdr_free_urbs(s);
- rtl2832_sdr_free_stream_bufs(s);
- rtl2832_sdr_cleanup_queued_bufs(s);
- rtl2832_sdr_unset_adc(s);
- rtl2832_sdr_unset_tuner(s);
-
- clear_bit(POWER_ON, &s->flags);
-
- if (s->d->props->power_ctrl)
- s->d->props->power_ctrl(s->d, 0);
-
- mutex_unlock(&s->v4l2_lock);
-}
-
-static 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_state *s = video_drvdata(file);
-
- dev_dbg(&s->udev->dev, "%s: index=%d type=%d\n",
- __func__, 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;
- } 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;
- } else {
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int rtl2832_sdr_s_tuner(struct file *file, void *priv,
- const struct v4l2_tuner *v)
-{
- struct rtl2832_sdr_state *s = video_drvdata(file);
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- if (v->index > 1)
- return -EINVAL;
- return 0;
-}
-
-static int rtl2832_sdr_enum_freq_bands(struct file *file, void *priv,
- struct v4l2_frequency_band *band)
-{
- struct rtl2832_sdr_state *s = video_drvdata(file);
-
- dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d index=%d\n",
- __func__, band->tuner, band->type, band->index);
-
- if (band->tuner == 0) {
- if (band->index >= ARRAY_SIZE(bands_adc))
- return -EINVAL;
-
- *band = bands_adc[band->index];
- } else if (band->tuner == 1) {
- if (band->index >= ARRAY_SIZE(bands_fm))
- return -EINVAL;
-
- *band = bands_fm[band->index];
- } else {
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int rtl2832_sdr_g_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct rtl2832_sdr_state *s = video_drvdata(file);
- int ret = 0;
-
- dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d\n",
- __func__, f->tuner, f->type);
-
- if (f->tuner == 0) {
- f->frequency = s->f_adc;
- f->type = V4L2_TUNER_ADC;
- } else if (f->tuner == 1) {
- f->frequency = s->f_tuner;
- f->type = V4L2_TUNER_RF;
- } else {
- return -EINVAL;
- }
-
- return ret;
-}
-
-static int rtl2832_sdr_s_frequency(struct file *file, void *priv,
- const struct v4l2_frequency *f)
-{
- struct rtl2832_sdr_state *s = video_drvdata(file);
- int ret, band;
-
- dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d frequency=%u\n",
- __func__, 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;
-
- s->f_adc = clamp_t(unsigned int, f->frequency,
- bands_adc[band].rangelow,
- bands_adc[band].rangehigh);
-
- dev_dbg(&s->udev->dev, "%s: ADC frequency=%u Hz\n",
- __func__, s->f_adc);
- ret = rtl2832_sdr_set_adc(s);
- } else if (f->tuner == 1) {
- s->f_tuner = clamp_t(unsigned int, f->frequency,
- bands_fm[0].rangelow,
- bands_fm[0].rangehigh);
- dev_dbg(&s->udev->dev, "%s: RF frequency=%u Hz\n",
- __func__, f->frequency);
-
- ret = rtl2832_sdr_set_tuner_freq(s);
- } 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_state *s = video_drvdata(file);
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- if (f->index >= NUM_FORMATS)
- return -EINVAL;
-
- strlcpy(f->description, formats[f->index].name, sizeof(f->description));
- f->pixelformat = formats[f->index].pixelformat;
-
- return 0;
-}
-
-static int rtl2832_sdr_g_fmt_sdr_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct rtl2832_sdr_state *s = video_drvdata(file);
-
- dev_dbg(&s->udev->dev, "%s:\n", __func__);
-
- f->fmt.sdr.pixelformat = s->pixelformat;
- 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_state *s = video_drvdata(file);
- struct vb2_queue *q = &s->vb_queue;
- int i;
-
- dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__,
- (char *)&f->fmt.sdr.pixelformat);
-
- if (vb2_is_busy(q))
- return -EBUSY;
-
- memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved));
- for (i = 0; i < NUM_FORMATS; i++) {
- if (formats[i].pixelformat == f->fmt.sdr.pixelformat) {
- s->pixelformat = f->fmt.sdr.pixelformat;
- return 0;
- }
- }
-
- f->fmt.sdr.pixelformat = formats[0].pixelformat;
- s->pixelformat = formats[0].pixelformat;
-
- return 0;
-}
-
-static int rtl2832_sdr_try_fmt_sdr_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct rtl2832_sdr_state *s = video_drvdata(file);
- int i;
-
- dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__,
- (char *)&f->fmt.sdr.pixelformat);
-
- memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved));
- for (i = 0; i < NUM_FORMATS; i++) {
- if (formats[i].pixelformat == f->fmt.sdr.pixelformat)
- return 0;
- }
-
- f->fmt.sdr.pixelformat = formats[0].pixelformat;
-
- return 0;
-}
-
-static 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_state *s =
- container_of(ctrl->handler, struct rtl2832_sdr_state,
- hdl);
- struct dvb_frontend *fe = s->fe;
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- int ret;
-
- dev_dbg(&s->udev->dev,
- "%s: id=%d name=%s val=%d min=%lld max=%lld step=%lld\n",
- __func__, 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 (s->bandwidth_auto->val) {
- /* Round towards the closest legal value */
- s32 val = s->f_adc + s->bandwidth->step / 2;
- u32 offset;
-
- val = clamp_t(s32, val, s->bandwidth->minimum,
- s->bandwidth->maximum);
- offset = val - s->bandwidth->minimum;
- offset = s->bandwidth->step *
- (offset / s->bandwidth->step);
- s->bandwidth->val = s->bandwidth->minimum + offset;
- }
-
- c->bandwidth_hz = s->bandwidth->val;
-
- if (!test_bit(POWER_ON, &s->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_state *s =
- container_of(v, struct rtl2832_sdr_state, v4l2_dev);
-
- v4l2_ctrl_handler_free(&s->hdl);
- v4l2_device_unregister(&s->v4l2_dev);
- kfree(s);
-}
-
-struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
- struct v4l2_subdev *sd)
-{
- int ret;
- struct rtl2832_sdr_state *s;
- const struct v4l2_ctrl_ops *ops = &rtl2832_sdr_ctrl_ops;
- struct dvb_usb_device *d = i2c_get_adapdata(i2c);
-
- s = kzalloc(sizeof(struct rtl2832_sdr_state), GFP_KERNEL);
- if (s == NULL) {
- dev_err(&d->udev->dev,
- "Could not allocate memory for rtl2832_sdr_state\n");
- return NULL;
- }
-
- /* setup the state */
- s->fe = fe;
- s->d = d;
- s->udev = d->udev;
- s->i2c = i2c;
- s->cfg = cfg;
- s->f_adc = bands_adc[0].rangelow;
- s->f_tuner = bands_fm[0].rangelow;
- s->pixelformat = V4L2_SDR_FMT_CU8;
-
- mutex_init(&s->v4l2_lock);
- mutex_init(&s->vb_queue_lock);
- spin_lock_init(&s->queued_bufs_lock);
- INIT_LIST_HEAD(&s->queued_bufs);
-
- /* Init videobuf2 queue structure */
- s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
- s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
- s->vb_queue.drv_priv = s;
- s->vb_queue.buf_struct_size = sizeof(struct rtl2832_sdr_frame_buf);
- s->vb_queue.ops = &rtl2832_sdr_vb2_ops;
- s->vb_queue.mem_ops = &vb2_vmalloc_memops;
- s->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- ret = vb2_queue_init(&s->vb_queue);
- if (ret) {
- dev_err(&s->udev->dev, "Could not initialize vb2 queue\n");
- goto err_free_mem;
- }
-
- /* Register controls */
- switch (s->cfg->tuner) {
- case RTL2832_TUNER_E4000:
- v4l2_ctrl_handler_init(&s->hdl, 9);
- if (sd)
- v4l2_ctrl_add_handler(&s->hdl, sd->ctrl_handler, NULL);
- break;
- case RTL2832_TUNER_R820T:
- v4l2_ctrl_handler_init(&s->hdl, 2);
- s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, ops,
- V4L2_CID_RF_TUNER_BANDWIDTH_AUTO,
- 0, 1, 1, 1);
- s->bandwidth = v4l2_ctrl_new_std(&s->hdl, ops,
- V4L2_CID_RF_TUNER_BANDWIDTH,
- 0, 8000000, 100000, 0);
- v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
- break;
- case RTL2832_TUNER_FC0012:
- case RTL2832_TUNER_FC0013:
- v4l2_ctrl_handler_init(&s->hdl, 2);
- s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, ops,
- V4L2_CID_RF_TUNER_BANDWIDTH_AUTO,
- 0, 1, 1, 1);
- s->bandwidth = v4l2_ctrl_new_std(&s->hdl, ops,
- V4L2_CID_RF_TUNER_BANDWIDTH,
- 6000000, 8000000, 1000000,
- 6000000);
- v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
- break;
- default:
- v4l2_ctrl_handler_init(&s->hdl, 0);
- dev_notice(&s->udev->dev, "%s: Unsupported tuner\n",
- KBUILD_MODNAME);
- goto err_free_controls;
- }
-
- if (s->hdl.error) {
- ret = s->hdl.error;
- dev_err(&s->udev->dev, "Could not initialize controls\n");
- goto err_free_controls;
- }
-
- /* Init video_device structure */
- s->vdev = rtl2832_sdr_template;
- s->vdev.queue = &s->vb_queue;
- s->vdev.queue->lock = &s->vb_queue_lock;
- video_set_drvdata(&s->vdev, s);
-
- /* Register the v4l2_device structure */
- s->v4l2_dev.release = rtl2832_sdr_video_release;
- ret = v4l2_device_register(&s->udev->dev, &s->v4l2_dev);
- if (ret) {
- dev_err(&s->udev->dev,
- "Failed to register v4l2-device (%d)\n", ret);
- goto err_free_controls;
- }
-
- s->v4l2_dev.ctrl_handler = &s->hdl;
- s->vdev.v4l2_dev = &s->v4l2_dev;
- s->vdev.lock = &s->v4l2_lock;
- s->vdev.vfl_dir = VFL_DIR_RX;
-
- ret = video_register_device(&s->vdev, VFL_TYPE_SDR, -1);
- if (ret) {
- dev_err(&s->udev->dev,
- "Failed to register as video device (%d)\n",
- ret);
- goto err_unregister_v4l2_dev;
- }
- dev_info(&s->udev->dev, "Registered as %s\n",
- video_device_node_name(&s->vdev));
-
- fe->sec_priv = s;
- fe->ops.release_sec = rtl2832_sdr_release_sec;
-
- dev_info(&s->i2c->dev, "%s: Realtek RTL2832 SDR attached\n",
- KBUILD_MODNAME);
- return fe;
-
-err_unregister_v4l2_dev:
- v4l2_device_unregister(&s->v4l2_dev);
-err_free_controls:
- v4l2_ctrl_handler_free(&s->hdl);
-err_free_mem:
- kfree(s);
- return NULL;
-}
-EXPORT_SYMBOL(rtl2832_sdr_attach);
-
-MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
-MODULE_DESCRIPTION("Realtek RTL2832 SDR driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * 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
- *
- * TODO:
- * Help is very highly welcome for these + all the others you could imagine:
- * - move controls to V4L2 API
- * - use libv4l2 for stream format conversions
- * - gr-kernel: switch to v4l2_mmap (current read eats a lot of cpu)
- * - SDRSharp support
- */
-
-#ifndef RTL2832_SDR_H
-#define RTL2832_SDR_H
-
-#include <linux/kconfig.h>
-#include <media/v4l2-subdev.h>
-
-/* for config struct */
-#include "rtl2832.h"
-
-#if IS_ENABLED(CONFIG_DVB_RTL2832_SDR)
-extern struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
- struct v4l2_subdev *sd);
-#else
-static inline struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
- struct v4l2_subdev *sd)
-{
- dev_warn(&i2c->dev, "%s: driver disabled by Kconfig\n", __func__);
- return NULL;
-}
-#endif
-
-#endif /* RTL2832_SDR_H */
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff