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684 lines
16 KiB
684 lines
16 KiB
// 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 <[email protected]> |
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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" |
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static int preallocate_big_buffers; |
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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"); |
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); |
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#define _AU0828_BULKPIPE 0x83 |
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#define _BULKPIPESIZE 0xe522 |
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static u8 hauppauge_hvr950q_led_states[] = { |
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0x00, /* off */ |
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0x02, /* yellow */ |
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0x04, /* green */ |
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}; |
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static struct au8522_led_config hauppauge_hvr950q_led_cfg = { |
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.gpio_output = 0x00e0, |
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.gpio_output_enable = 0x6006, |
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.gpio_output_disable = 0x0660, |
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.gpio_leds = 0x00e2, |
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.led_states = hauppauge_hvr950q_led_states, |
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.num_led_states = sizeof(hauppauge_hvr950q_led_states), |
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.vsb8_strong = 20 /* dB */ * 10, |
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.qam64_strong = 25 /* dB */ * 10, |
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.qam256_strong = 32 /* dB */ * 10, |
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}; |
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static struct au8522_config hauppauge_hvr950q_config = { |
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.demod_address = 0x8e >> 1, |
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.status_mode = AU8522_DEMODLOCKING, |
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.qam_if = AU8522_IF_6MHZ, |
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.vsb_if = AU8522_IF_6MHZ, |
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.led_cfg = &hauppauge_hvr950q_led_cfg, |
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}; |
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static struct au8522_config fusionhdtv7usb_config = { |
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.demod_address = 0x8e >> 1, |
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.status_mode = AU8522_DEMODLOCKING, |
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.qam_if = AU8522_IF_6MHZ, |
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.vsb_if = AU8522_IF_6MHZ, |
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}; |
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static struct au8522_config hauppauge_woodbury_config = { |
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.demod_address = 0x8e >> 1, |
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.status_mode = AU8522_DEMODLOCKING, |
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.qam_if = AU8522_IF_4MHZ, |
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.vsb_if = AU8522_IF_3_25MHZ, |
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}; |
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static struct xc5000_config hauppauge_xc5000a_config = { |
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.i2c_address = 0x61, |
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.if_khz = 6000, |
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.chip_id = XC5000A, |
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.output_amp = 0x8f, |
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}; |
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static struct xc5000_config hauppauge_xc5000c_config = { |
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.i2c_address = 0x61, |
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.if_khz = 6000, |
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.chip_id = XC5000C, |
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.output_amp = 0x8f, |
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}; |
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static struct mxl5007t_config mxl5007t_hvr950q_config = { |
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.xtal_freq_hz = MxL_XTAL_24_MHZ, |
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.if_freq_hz = MxL_IF_6_MHZ, |
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}; |
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static struct tda18271_config hauppauge_woodbury_tunerconfig = { |
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.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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{ |
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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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{ |
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struct au0828_dev *dev = purb->context; |
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int ptype = usb_pipetype(purb->pipe); |
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unsigned char *ptr; |
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dprintk(2, "%s: %d\n", __func__, purb->actual_length); |
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if (!dev) { |
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dprintk(2, "%s: no dev!\n", __func__); |
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return; |
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} |
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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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} |
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if (ptype != PIPE_BULK) { |
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pr_err("%s: Unsupported URB type %d\n", |
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__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 |
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bug where the stream gets misaligned */ |
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ptr = purb->transfer_buffer; |
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if (purb->actual_length > 0 && ptr[0] != 0x47) { |
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dprintk(1, "Need to restart streaming %02x len=%d!\n", |
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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 |
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* restart endpoint if we hadn't |
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*/ |
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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); |
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} |
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/* Feed the transport payload into the kernel demux */ |
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dvb_dmx_swfilter_packets(&dev->dvb.demux, |
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purb->transfer_buffer, purb->actual_length / 188); |
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/* 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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} |
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static int stop_urb_transfer(struct au0828_dev *dev) |
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{ |
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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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{ |
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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, |
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GFP_KERNEL); |
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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", |
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__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", |
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__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)); |
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dev->bulk_timeout_running = 1; |
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return 0; |
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} |
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static void au0828_start_transport(struct au0828_dev *dev) |
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{ |
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au0828_write(dev, 0x608, 0x90); |
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au0828_write(dev, 0x609, 0x72); |
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au0828_write(dev, 0x60a, 0x71); |
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au0828_write(dev, 0x60b, 0x01); |
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} |
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static void au0828_stop_transport(struct au0828_dev *dev, int full_stop) |
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{ |
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if (full_stop) { |
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au0828_write(dev, 0x608, 0x00); |
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au0828_write(dev, 0x609, 0x00); |
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au0828_write(dev, 0x60a, 0x00); |
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} |
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au0828_write(dev, 0x60b, 0x00); |
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} |
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static int au0828_dvb_start_feed(struct dvb_demux_feed *feed) |
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{ |
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struct dvb_demux *demux = feed->demux; |
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struct au0828_dev *dev = (struct au0828_dev *) demux->priv; |
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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__, |
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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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} |
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} |
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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) |
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{ |
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struct dvb_demux *demux = feed->demux; |
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struct au0828_dev *dev = (struct au0828_dev *) demux->priv; |
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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__, |
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dvb->start_count, dvb->stop_count); |
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if (dvb->feeding > 0) { |
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dvb->feeding--; |
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if (dvb->feeding == 0) { |
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/* Stop transport */ |
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ret = stop_urb_transfer(dev); |
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au0828_stop_transport(dev, 0); |
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} |
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} |
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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 void au0828_restart_dvb_streaming(struct work_struct *work) |
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{ |
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struct au0828_dev *dev = container_of(work, struct au0828_dev, |
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restart_streaming); |
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struct au0828_dvb *dvb = &dev->dvb; |
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if (!dev->urb_streaming) |
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return; |
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dprintk(1, "Restarting streaming...!\n"); |
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mutex_lock(&dvb->lock); |
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/* Stop transport */ |
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stop_urb_transfer(dev); |
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au0828_stop_transport(dev, 1); |
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/* Start transport */ |
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au0828_start_transport(dev); |
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start_urb_transfer(dev); |
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mutex_unlock(&dvb->lock); |
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} |
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static int au0828_set_frontend(struct dvb_frontend *fe) |
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{ |
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struct au0828_dev *dev = fe->dvb->priv; |
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struct au0828_dvb *dvb = &dev->dvb; |
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int ret, was_streaming; |
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mutex_lock(&dvb->lock); |
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was_streaming = dev->urb_streaming; |
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if (was_streaming) { |
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au0828_stop_transport(dev, 1); |
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/* |
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* We can't hold a mutex here, as the restart_streaming |
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* kthread may also hold it. |
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*/ |
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mutex_unlock(&dvb->lock); |
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cancel_work_sync(&dev->restart_streaming); |
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mutex_lock(&dvb->lock); |
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stop_urb_transfer(dev); |
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} |
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mutex_unlock(&dvb->lock); |
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ret = dvb->set_frontend(fe); |
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if (was_streaming) { |
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mutex_lock(&dvb->lock); |
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au0828_start_transport(dev); |
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start_urb_transfer(dev); |
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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 dvb_register(struct au0828_dev *dev) |
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{ |
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struct au0828_dvb *dvb = &dev->dvb; |
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int result; |
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dprintk(1, "%s()\n", __func__); |
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if (preallocate_big_buffers) { |
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int i; |
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for (i = 0; i < URB_COUNT; i++) { |
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dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE, |
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GFP_KERNEL); |
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if (!dev->dig_transfer_buffer[i]) { |
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result = -ENOMEM; |
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pr_err("failed buffer allocation (errno = %d)\n", |
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result); |
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goto fail_adapter; |
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} |
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} |
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} |
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INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming); |
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/* register adapter */ |
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result = dvb_register_adapter(&dvb->adapter, |
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KBUILD_MODNAME, THIS_MODULE, |
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&dev->usbdev->dev, adapter_nr); |
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if (result < 0) { |
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pr_err("dvb_register_adapter failed (errno = %d)\n", |
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result); |
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goto fail_adapter; |
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} |
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#ifdef CONFIG_MEDIA_CONTROLLER_DVB |
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dvb->adapter.mdev = dev->media_dev; |
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#endif |
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dvb->adapter.priv = dev; |
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/* register frontend */ |
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result = dvb_register_frontend(&dvb->adapter, dvb->frontend); |
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if (result < 0) { |
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pr_err("dvb_register_frontend failed (errno = %d)\n", |
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result); |
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goto fail_frontend; |
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} |
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/* Hook dvb frontend */ |
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dvb->set_frontend = dvb->frontend->ops.set_frontend; |
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dvb->frontend->ops.set_frontend = au0828_set_frontend; |
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/* register demux stuff */ |
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dvb->demux.dmx.capabilities = |
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DMX_TS_FILTERING | DMX_SECTION_FILTERING | |
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DMX_MEMORY_BASED_FILTERING; |
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dvb->demux.priv = dev; |
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dvb->demux.filternum = 256; |
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dvb->demux.feednum = 256; |
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dvb->demux.start_feed = au0828_dvb_start_feed; |
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dvb->demux.stop_feed = au0828_dvb_stop_feed; |
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result = dvb_dmx_init(&dvb->demux); |
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if (result < 0) { |
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pr_err("dvb_dmx_init failed (errno = %d)\n", result); |
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goto fail_dmx; |
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} |
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dvb->dmxdev.filternum = 256; |
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dvb->dmxdev.demux = &dvb->demux.dmx; |
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dvb->dmxdev.capabilities = 0; |
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result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter); |
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if (result < 0) { |
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pr_err("dvb_dmxdev_init failed (errno = %d)\n", result); |
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goto fail_dmxdev; |
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} |
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dvb->fe_hw.source = DMX_FRONTEND_0; |
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result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw); |
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if (result < 0) { |
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pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n", |
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result); |
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goto fail_fe_hw; |
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} |
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dvb->fe_mem.source = DMX_MEMORY_FE; |
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result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem); |
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if (result < 0) { |
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pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n", |
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result); |
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goto fail_fe_mem; |
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} |
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result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw); |
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if (result < 0) { |
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pr_err("connect_frontend failed (errno = %d)\n", result); |
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goto fail_fe_conn; |
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} |
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/* register network adapter */ |
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dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx); |
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dvb->start_count = 0; |
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dvb->stop_count = 0; |
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result = dvb_create_media_graph(&dvb->adapter, false); |
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if (result < 0) |
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goto fail_create_graph; |
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return 0; |
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fail_create_graph: |
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dvb_net_release(&dvb->net); |
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fail_fe_conn: |
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dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); |
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fail_fe_mem: |
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dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); |
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fail_fe_hw: |
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dvb_dmxdev_release(&dvb->dmxdev); |
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fail_dmxdev: |
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dvb_dmx_release(&dvb->demux); |
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fail_dmx: |
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dvb_unregister_frontend(dvb->frontend); |
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fail_frontend: |
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dvb_frontend_detach(dvb->frontend); |
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dvb_unregister_adapter(&dvb->adapter); |
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fail_adapter: |
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if (preallocate_big_buffers) { |
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int i; |
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for (i = 0; i < URB_COUNT; i++) |
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kfree(dev->dig_transfer_buffer[i]); |
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} |
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return result; |
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} |
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void au0828_dvb_unregister(struct au0828_dev *dev) |
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{ |
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struct au0828_dvb *dvb = &dev->dvb; |
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dprintk(1, "%s()\n", __func__); |
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if (dvb->frontend == NULL) |
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return; |
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cancel_work_sync(&dev->restart_streaming); |
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dvb_net_release(&dvb->net); |
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dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); |
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dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); |
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dvb_dmxdev_release(&dvb->dmxdev); |
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dvb_dmx_release(&dvb->demux); |
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dvb_unregister_frontend(dvb->frontend); |
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dvb_frontend_detach(dvb->frontend); |
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dvb_unregister_adapter(&dvb->adapter); |
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|
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if (preallocate_big_buffers) { |
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int i; |
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for (i = 0; i < URB_COUNT; i++) |
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kfree(dev->dig_transfer_buffer[i]); |
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} |
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dvb->frontend = NULL; |
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} |
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|
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/* All the DVB attach calls go here, this function gets modified |
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* for each new card. No other function in this file needs |
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* to change. |
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*/ |
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int au0828_dvb_register(struct au0828_dev *dev) |
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{ |
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struct au0828_dvb *dvb = &dev->dvb; |
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int ret; |
|
|
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dprintk(1, "%s()\n", __func__); |
|
|
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/* init frontend */ |
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switch (dev->boardnr) { |
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case AU0828_BOARD_HAUPPAUGE_HVR850: |
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case AU0828_BOARD_HAUPPAUGE_HVR950Q: |
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dvb->frontend = dvb_attach(au8522_attach, |
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&hauppauge_hvr950q_config, |
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&dev->i2c_adap); |
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if (dvb->frontend != NULL) |
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switch (dev->board.tuner_type) { |
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default: |
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case TUNER_XC5000: |
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dvb_attach(xc5000_attach, dvb->frontend, |
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&dev->i2c_adap, |
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&hauppauge_xc5000a_config); |
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break; |
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case TUNER_XC5000C: |
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dvb_attach(xc5000_attach, dvb->frontend, |
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&dev->i2c_adap, |
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&hauppauge_xc5000c_config); |
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break; |
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} |
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break; |
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case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL: |
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dvb->frontend = dvb_attach(au8522_attach, |
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&hauppauge_hvr950q_config, |
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&dev->i2c_adap); |
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if (dvb->frontend != NULL) |
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dvb_attach(mxl5007t_attach, dvb->frontend, |
|
&dev->i2c_adap, 0x60, |
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&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); |
|
} |
|
} |
|
}
|
|
|