// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Driver for the Auvitek USB bridge
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*
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* Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
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*/
|
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#include "au0828.h"
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <media/v4l2-common.h>
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#include <media/tuner.h>
|
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#include "au8522.h"
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#include "xc5000.h"
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#include "mxl5007t.h"
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#include "tda18271.h"
|
|
static int preallocate_big_buffers;
|
module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644);
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MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time");
|
|
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
|
|
#define _AU0828_BULKPIPE 0x83
|
#define _BULKPIPESIZE 0xe522
|
|
static u8 hauppauge_hvr950q_led_states[] = {
|
0x00, /* off */
|
0x02, /* yellow */
|
0x04, /* green */
|
};
|
|
static struct au8522_led_config hauppauge_hvr950q_led_cfg = {
|
.gpio_output = 0x00e0,
|
.gpio_output_enable = 0x6006,
|
.gpio_output_disable = 0x0660,
|
|
.gpio_leds = 0x00e2,
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.led_states = hauppauge_hvr950q_led_states,
|
.num_led_states = sizeof(hauppauge_hvr950q_led_states),
|
|
.vsb8_strong = 20 /* dB */ * 10,
|
.qam64_strong = 25 /* dB */ * 10,
|
.qam256_strong = 32 /* dB */ * 10,
|
};
|
|
static struct au8522_config hauppauge_hvr950q_config = {
|
.demod_address = 0x8e >> 1,
|
.status_mode = AU8522_DEMODLOCKING,
|
.qam_if = AU8522_IF_6MHZ,
|
.vsb_if = AU8522_IF_6MHZ,
|
.led_cfg = &hauppauge_hvr950q_led_cfg,
|
};
|
|
static struct au8522_config fusionhdtv7usb_config = {
|
.demod_address = 0x8e >> 1,
|
.status_mode = AU8522_DEMODLOCKING,
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.qam_if = AU8522_IF_6MHZ,
|
.vsb_if = AU8522_IF_6MHZ,
|
};
|
|
static struct au8522_config hauppauge_woodbury_config = {
|
.demod_address = 0x8e >> 1,
|
.status_mode = AU8522_DEMODLOCKING,
|
.qam_if = AU8522_IF_4MHZ,
|
.vsb_if = AU8522_IF_3_25MHZ,
|
};
|
|
static struct xc5000_config hauppauge_xc5000a_config = {
|
.i2c_address = 0x61,
|
.if_khz = 6000,
|
.chip_id = XC5000A,
|
.output_amp = 0x8f,
|
};
|
|
static struct xc5000_config hauppauge_xc5000c_config = {
|
.i2c_address = 0x61,
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.if_khz = 6000,
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.chip_id = XC5000C,
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.output_amp = 0x8f,
|
};
|
|
static struct mxl5007t_config mxl5007t_hvr950q_config = {
|
.xtal_freq_hz = MxL_XTAL_24_MHZ,
|
.if_freq_hz = MxL_IF_6_MHZ,
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};
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|
static struct tda18271_config hauppauge_woodbury_tunerconfig = {
|
.gate = TDA18271_GATE_DIGITAL,
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};
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static void au0828_restart_dvb_streaming(struct work_struct *work);
|
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static void au0828_bulk_timeout(struct timer_list *t)
|
{
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struct au0828_dev *dev = from_timer(dev, t, bulk_timeout);
|
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dprintk(1, "%s called\n", __func__);
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dev->bulk_timeout_running = 0;
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schedule_work(&dev->restart_streaming);
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}
|
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/*-------------------------------------------------------------------*/
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static void urb_completion(struct urb *purb)
|
{
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struct au0828_dev *dev = purb->context;
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int ptype = usb_pipetype(purb->pipe);
|
unsigned char *ptr;
|
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dprintk(2, "%s: %d\n", __func__, purb->actual_length);
|
|
if (!dev) {
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dprintk(2, "%s: no dev!\n", __func__);
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return;
|
}
|
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if (!dev->urb_streaming) {
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dprintk(2, "%s: not streaming!\n", __func__);
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return;
|
}
|
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if (ptype != PIPE_BULK) {
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pr_err("%s: Unsupported URB type %d\n",
|
__func__, ptype);
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return;
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}
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/* See if the stream is corrupted (to work around a hardware
|
bug where the stream gets misaligned */
|
ptr = purb->transfer_buffer;
|
if (purb->actual_length > 0 && ptr[0] != 0x47) {
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dprintk(1, "Need to restart streaming %02x len=%d!\n",
|
ptr[0], purb->actual_length);
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schedule_work(&dev->restart_streaming);
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return;
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} else if (dev->bulk_timeout_running == 1) {
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/* The URB handler has fired, so cancel timer which would
|
* restart endpoint if we hadn't
|
*/
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dprintk(1, "%s cancelling bulk timeout\n", __func__);
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dev->bulk_timeout_running = 0;
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del_timer(&dev->bulk_timeout);
|
}
|
|
/* Feed the transport payload into the kernel demux */
|
dvb_dmx_swfilter_packets(&dev->dvb.demux,
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purb->transfer_buffer, purb->actual_length / 188);
|
|
/* Clean the buffer before we requeue */
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memset(purb->transfer_buffer, 0, URB_BUFSIZE);
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/* Requeue URB */
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usb_submit_urb(purb, GFP_ATOMIC);
|
}
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static int stop_urb_transfer(struct au0828_dev *dev)
|
{
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int i;
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dprintk(2, "%s()\n", __func__);
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if (!dev->urb_streaming)
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return 0;
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|
if (dev->bulk_timeout_running == 1) {
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dev->bulk_timeout_running = 0;
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del_timer(&dev->bulk_timeout);
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}
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dev->urb_streaming = false;
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for (i = 0; i < URB_COUNT; i++) {
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if (dev->urbs[i]) {
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usb_kill_urb(dev->urbs[i]);
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if (!preallocate_big_buffers)
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kfree(dev->urbs[i]->transfer_buffer);
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usb_free_urb(dev->urbs[i]);
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}
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}
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return 0;
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}
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static int start_urb_transfer(struct au0828_dev *dev)
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{
|
struct urb *purb;
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int i, ret;
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dprintk(2, "%s()\n", __func__);
|
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if (dev->urb_streaming) {
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dprintk(2, "%s: bulk xfer already running!\n", __func__);
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return 0;
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}
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for (i = 0; i < URB_COUNT; i++) {
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dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
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if (!dev->urbs[i])
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return -ENOMEM;
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|
purb = dev->urbs[i];
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if (preallocate_big_buffers)
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purb->transfer_buffer = dev->dig_transfer_buffer[i];
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else
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purb->transfer_buffer = kzalloc(URB_BUFSIZE,
|
GFP_KERNEL);
|
|
if (!purb->transfer_buffer) {
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usb_free_urb(purb);
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dev->urbs[i] = NULL;
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ret = -ENOMEM;
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pr_err("%s: failed big buffer allocation, err = %d\n",
|
__func__, ret);
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return ret;
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}
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purb->status = -EINPROGRESS;
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usb_fill_bulk_urb(purb,
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dev->usbdev,
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usb_rcvbulkpipe(dev->usbdev,
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_AU0828_BULKPIPE),
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purb->transfer_buffer,
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URB_BUFSIZE,
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urb_completion,
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dev);
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}
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for (i = 0; i < URB_COUNT; i++) {
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ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
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if (ret != 0) {
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stop_urb_transfer(dev);
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pr_err("%s: failed urb submission, err = %d\n",
|
__func__, ret);
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return ret;
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}
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}
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dev->urb_streaming = true;
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/* If we don't valid data within 1 second, restart stream */
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mod_timer(&dev->bulk_timeout, jiffies + (HZ));
|
dev->bulk_timeout_running = 1;
|
|
return 0;
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}
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static void au0828_start_transport(struct au0828_dev *dev)
|
{
|
au0828_write(dev, 0x608, 0x90);
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au0828_write(dev, 0x609, 0x72);
|
au0828_write(dev, 0x60a, 0x71);
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au0828_write(dev, 0x60b, 0x01);
|
|
}
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static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
|
{
|
if (full_stop) {
|
au0828_write(dev, 0x608, 0x00);
|
au0828_write(dev, 0x609, 0x00);
|
au0828_write(dev, 0x60a, 0x00);
|
}
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au0828_write(dev, 0x60b, 0x00);
|
}
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static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
|
{
|
struct dvb_demux *demux = feed->demux;
|
struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
|
struct au0828_dvb *dvb = &dev->dvb;
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int ret = 0;
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dprintk(1, "%s()\n", __func__);
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if (!demux->dmx.frontend)
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return -EINVAL;
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|
if (dvb->frontend) {
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mutex_lock(&dvb->lock);
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dvb->start_count++;
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dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
|
dvb->start_count, dvb->stop_count);
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if (dvb->feeding++ == 0) {
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/* Start transport */
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au0828_start_transport(dev);
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ret = start_urb_transfer(dev);
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if (ret < 0) {
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au0828_stop_transport(dev, 0);
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dvb->feeding--; /* We ran out of memory... */
|
}
|
}
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mutex_unlock(&dvb->lock);
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}
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|
return ret;
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}
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static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
|
{
|
struct dvb_demux *demux = feed->demux;
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struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
|
struct au0828_dvb *dvb = &dev->dvb;
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int ret = 0;
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dprintk(1, "%s()\n", __func__);
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if (dvb->frontend) {
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cancel_work_sync(&dev->restart_streaming);
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|
mutex_lock(&dvb->lock);
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dvb->stop_count++;
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dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
|
dvb->start_count, dvb->stop_count);
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if (dvb->feeding > 0) {
|
dvb->feeding--;
|
if (dvb->feeding == 0) {
|
/* Stop transport */
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ret = stop_urb_transfer(dev);
|
au0828_stop_transport(dev, 0);
|
}
|
}
|
mutex_unlock(&dvb->lock);
|
}
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|
return ret;
|
}
|
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static void au0828_restart_dvb_streaming(struct work_struct *work)
|
{
|
struct au0828_dev *dev = container_of(work, struct au0828_dev,
|
restart_streaming);
|
struct au0828_dvb *dvb = &dev->dvb;
|
|
if (!dev->urb_streaming)
|
return;
|
|
dprintk(1, "Restarting streaming...!\n");
|
|
mutex_lock(&dvb->lock);
|
|
/* Stop transport */
|
stop_urb_transfer(dev);
|
au0828_stop_transport(dev, 1);
|
|
/* Start transport */
|
au0828_start_transport(dev);
|
start_urb_transfer(dev);
|
|
mutex_unlock(&dvb->lock);
|
}
|
|
static int au0828_set_frontend(struct dvb_frontend *fe)
|
{
|
struct au0828_dev *dev = fe->dvb->priv;
|
struct au0828_dvb *dvb = &dev->dvb;
|
int ret, was_streaming;
|
|
mutex_lock(&dvb->lock);
|
was_streaming = dev->urb_streaming;
|
if (was_streaming) {
|
au0828_stop_transport(dev, 1);
|
|
/*
|
* We can't hold a mutex here, as the restart_streaming
|
* kthread may also hold it.
|
*/
|
mutex_unlock(&dvb->lock);
|
cancel_work_sync(&dev->restart_streaming);
|
mutex_lock(&dvb->lock);
|
|
stop_urb_transfer(dev);
|
}
|
mutex_unlock(&dvb->lock);
|
|
ret = dvb->set_frontend(fe);
|
|
if (was_streaming) {
|
mutex_lock(&dvb->lock);
|
au0828_start_transport(dev);
|
start_urb_transfer(dev);
|
mutex_unlock(&dvb->lock);
|
}
|
|
return ret;
|
}
|
|
static int dvb_register(struct au0828_dev *dev)
|
{
|
struct au0828_dvb *dvb = &dev->dvb;
|
int result;
|
|
dprintk(1, "%s()\n", __func__);
|
|
if (preallocate_big_buffers) {
|
int i;
|
for (i = 0; i < URB_COUNT; i++) {
|
dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
|
GFP_KERNEL);
|
|
if (!dev->dig_transfer_buffer[i]) {
|
result = -ENOMEM;
|
|
pr_err("failed buffer allocation (errno = %d)\n",
|
result);
|
goto fail_adapter;
|
}
|
}
|
}
|
|
INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
|
|
/* register adapter */
|
result = dvb_register_adapter(&dvb->adapter,
|
KBUILD_MODNAME, THIS_MODULE,
|
&dev->usbdev->dev, adapter_nr);
|
if (result < 0) {
|
pr_err("dvb_register_adapter failed (errno = %d)\n",
|
result);
|
goto fail_adapter;
|
}
|
|
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
|
dvb->adapter.mdev = dev->media_dev;
|
#endif
|
|
dvb->adapter.priv = dev;
|
|
/* register frontend */
|
result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
|
if (result < 0) {
|
pr_err("dvb_register_frontend failed (errno = %d)\n",
|
result);
|
goto fail_frontend;
|
}
|
|
/* Hook dvb frontend */
|
dvb->set_frontend = dvb->frontend->ops.set_frontend;
|
dvb->frontend->ops.set_frontend = au0828_set_frontend;
|
|
/* register demux stuff */
|
dvb->demux.dmx.capabilities =
|
DMX_TS_FILTERING | DMX_SECTION_FILTERING |
|
DMX_MEMORY_BASED_FILTERING;
|
dvb->demux.priv = dev;
|
dvb->demux.filternum = 256;
|
dvb->demux.feednum = 256;
|
dvb->demux.start_feed = au0828_dvb_start_feed;
|
dvb->demux.stop_feed = au0828_dvb_stop_feed;
|
result = dvb_dmx_init(&dvb->demux);
|
if (result < 0) {
|
pr_err("dvb_dmx_init failed (errno = %d)\n", result);
|
goto fail_dmx;
|
}
|
|
dvb->dmxdev.filternum = 256;
|
dvb->dmxdev.demux = &dvb->demux.dmx;
|
dvb->dmxdev.capabilities = 0;
|
result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
|
if (result < 0) {
|
pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
|
goto fail_dmxdev;
|
}
|
|
dvb->fe_hw.source = DMX_FRONTEND_0;
|
result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
|
if (result < 0) {
|
pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
|
result);
|
goto fail_fe_hw;
|
}
|
|
dvb->fe_mem.source = DMX_MEMORY_FE;
|
result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
|
if (result < 0) {
|
pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
|
result);
|
goto fail_fe_mem;
|
}
|
|
result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
|
if (result < 0) {
|
pr_err("connect_frontend failed (errno = %d)\n", result);
|
goto fail_fe_conn;
|
}
|
|
/* register network adapter */
|
dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
|
|
dvb->start_count = 0;
|
dvb->stop_count = 0;
|
|
result = dvb_create_media_graph(&dvb->adapter, false);
|
if (result < 0)
|
goto fail_create_graph;
|
|
return 0;
|
|
fail_create_graph:
|
dvb_net_release(&dvb->net);
|
fail_fe_conn:
|
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
|
fail_fe_mem:
|
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
|
fail_fe_hw:
|
dvb_dmxdev_release(&dvb->dmxdev);
|
fail_dmxdev:
|
dvb_dmx_release(&dvb->demux);
|
fail_dmx:
|
dvb_unregister_frontend(dvb->frontend);
|
fail_frontend:
|
dvb_frontend_detach(dvb->frontend);
|
dvb_unregister_adapter(&dvb->adapter);
|
fail_adapter:
|
|
if (preallocate_big_buffers) {
|
int i;
|
for (i = 0; i < URB_COUNT; i++)
|
kfree(dev->dig_transfer_buffer[i]);
|
}
|
|
return result;
|
}
|
|
void au0828_dvb_unregister(struct au0828_dev *dev)
|
{
|
struct au0828_dvb *dvb = &dev->dvb;
|
|
dprintk(1, "%s()\n", __func__);
|
|
if (dvb->frontend == NULL)
|
return;
|
|
cancel_work_sync(&dev->restart_streaming);
|
|
dvb_net_release(&dvb->net);
|
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
|
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
|
dvb_dmxdev_release(&dvb->dmxdev);
|
dvb_dmx_release(&dvb->demux);
|
dvb_unregister_frontend(dvb->frontend);
|
dvb_frontend_detach(dvb->frontend);
|
dvb_unregister_adapter(&dvb->adapter);
|
|
if (preallocate_big_buffers) {
|
int i;
|
for (i = 0; i < URB_COUNT; i++)
|
kfree(dev->dig_transfer_buffer[i]);
|
}
|
dvb->frontend = NULL;
|
}
|
|
/* All the DVB attach calls go here, this function gets modified
|
* for each new card. No other function in this file needs
|
* to change.
|
*/
|
int au0828_dvb_register(struct au0828_dev *dev)
|
{
|
struct au0828_dvb *dvb = &dev->dvb;
|
int ret;
|
|
dprintk(1, "%s()\n", __func__);
|
|
/* init frontend */
|
switch (dev->boardnr) {
|
case AU0828_BOARD_HAUPPAUGE_HVR850:
|
case AU0828_BOARD_HAUPPAUGE_HVR950Q:
|
dvb->frontend = dvb_attach(au8522_attach,
|
&hauppauge_hvr950q_config,
|
&dev->i2c_adap);
|
if (dvb->frontend != NULL)
|
switch (dev->board.tuner_type) {
|
default:
|
case TUNER_XC5000:
|
dvb_attach(xc5000_attach, dvb->frontend,
|
&dev->i2c_adap,
|
&hauppauge_xc5000a_config);
|
break;
|
case TUNER_XC5000C:
|
dvb_attach(xc5000_attach, dvb->frontend,
|
&dev->i2c_adap,
|
&hauppauge_xc5000c_config);
|
break;
|
}
|
break;
|
case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
|
dvb->frontend = dvb_attach(au8522_attach,
|
&hauppauge_hvr950q_config,
|
&dev->i2c_adap);
|
if (dvb->frontend != NULL)
|
dvb_attach(mxl5007t_attach, dvb->frontend,
|
&dev->i2c_adap, 0x60,
|
&mxl5007t_hvr950q_config);
|
break;
|
case AU0828_BOARD_HAUPPAUGE_WOODBURY:
|
dvb->frontend = dvb_attach(au8522_attach,
|
&hauppauge_woodbury_config,
|
&dev->i2c_adap);
|
if (dvb->frontend != NULL)
|
dvb_attach(tda18271_attach, dvb->frontend,
|
0x60, &dev->i2c_adap,
|
&hauppauge_woodbury_tunerconfig);
|
break;
|
case AU0828_BOARD_DVICO_FUSIONHDTV7:
|
dvb->frontend = dvb_attach(au8522_attach,
|
&fusionhdtv7usb_config,
|
&dev->i2c_adap);
|
if (dvb->frontend != NULL) {
|
dvb_attach(xc5000_attach, dvb->frontend,
|
&dev->i2c_adap,
|
&hauppauge_xc5000a_config);
|
}
|
break;
|
default:
|
pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
|
break;
|
}
|
if (NULL == dvb->frontend) {
|
pr_err("%s() Frontend initialization failed\n",
|
__func__);
|
return -1;
|
}
|
/* define general-purpose callback pointer */
|
dvb->frontend->callback = au0828_tuner_callback;
|
|
/* register everything */
|
ret = dvb_register(dev);
|
if (ret < 0) {
|
if (dvb->frontend->ops.release)
|
dvb->frontend->ops.release(dvb->frontend);
|
dvb->frontend = NULL;
|
return ret;
|
}
|
|
timer_setup(&dev->bulk_timeout, au0828_bulk_timeout, 0);
|
|
return 0;
|
}
|
|
void au0828_dvb_suspend(struct au0828_dev *dev)
|
{
|
struct au0828_dvb *dvb = &dev->dvb;
|
int rc;
|
|
if (dvb->frontend) {
|
if (dev->urb_streaming) {
|
cancel_work_sync(&dev->restart_streaming);
|
/* Stop transport */
|
mutex_lock(&dvb->lock);
|
stop_urb_transfer(dev);
|
au0828_stop_transport(dev, 1);
|
mutex_unlock(&dvb->lock);
|
dev->need_urb_start = true;
|
}
|
/* suspend frontend - does tuner and fe to sleep */
|
rc = dvb_frontend_suspend(dvb->frontend);
|
pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
|
}
|
}
|
|
void au0828_dvb_resume(struct au0828_dev *dev)
|
{
|
struct au0828_dvb *dvb = &dev->dvb;
|
int rc;
|
|
if (dvb->frontend) {
|
/* resume frontend - does fe and tuner init */
|
rc = dvb_frontend_resume(dvb->frontend);
|
pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
|
if (dev->need_urb_start) {
|
/* Start transport */
|
mutex_lock(&dvb->lock);
|
au0828_start_transport(dev);
|
start_urb_transfer(dev);
|
mutex_unlock(&dvb->lock);
|
}
|
}
|
}
|
