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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5013318ca4
Serialize DVB initialization, to avoid it to happen while analog initialization is still happening. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
641 lines
16 KiB
C
641 lines
16 KiB
C
/*
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DVB device driver for em28xx
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(c) 2008 Mauro Carvalho Chehab <mchehab@infradead.org>
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(c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
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- Fixes for the driver to properly work with HVR-950
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- Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
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- Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
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(c) 2008 Aidan Thornton <makosoft@googlemail.com>
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Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
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(c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
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(c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License.
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/usb.h>
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#include "em28xx.h"
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#include <media/v4l2-common.h>
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#include <media/videobuf-vmalloc.h>
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#include <media/tuner.h>
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#include "tuner-simple.h"
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#include "lgdt330x.h"
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#include "zl10353.h"
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#include "s5h1409.h"
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#include "mt352.h"
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#include "mt352_priv.h" /* FIXME */
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#include "tda1002x.h"
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MODULE_DESCRIPTION("driver for em28xx based DVB cards");
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MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
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MODULE_LICENSE("GPL");
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static unsigned int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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#define dprintk(level, fmt, arg...) do { \
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if (debug >= level) \
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printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
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} while (0)
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#define EM28XX_DVB_NUM_BUFS 5
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#define EM28XX_DVB_MAX_PACKETS 64
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struct em28xx_dvb {
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struct dvb_frontend *frontend;
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/* feed count management */
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struct mutex lock;
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int nfeeds;
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/* general boilerplate stuff */
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struct dvb_adapter adapter;
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struct dvb_demux demux;
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struct dmxdev dmxdev;
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struct dmx_frontend fe_hw;
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struct dmx_frontend fe_mem;
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struct dvb_net net;
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};
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static inline void print_err_status(struct em28xx *dev,
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int packet, int status)
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{
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char *errmsg = "Unknown";
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switch (status) {
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case -ENOENT:
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errmsg = "unlinked synchronuously";
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break;
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case -ECONNRESET:
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errmsg = "unlinked asynchronuously";
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break;
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case -ENOSR:
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errmsg = "Buffer error (overrun)";
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break;
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case -EPIPE:
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errmsg = "Stalled (device not responding)";
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break;
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case -EOVERFLOW:
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errmsg = "Babble (bad cable?)";
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break;
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case -EPROTO:
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errmsg = "Bit-stuff error (bad cable?)";
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break;
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case -EILSEQ:
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errmsg = "CRC/Timeout (could be anything)";
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break;
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case -ETIME:
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errmsg = "Device does not respond";
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break;
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}
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if (packet < 0) {
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dprintk(1, "URB status %d [%s].\n", status, errmsg);
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} else {
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dprintk(1, "URB packet %d, status %d [%s].\n",
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packet, status, errmsg);
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}
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}
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static inline int dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
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{
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int i;
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if (!dev)
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return 0;
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if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
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return 0;
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if (urb->status < 0) {
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print_err_status(dev, -1, urb->status);
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if (urb->status == -ENOENT)
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return 0;
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}
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for (i = 0; i < urb->number_of_packets; i++) {
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int status = urb->iso_frame_desc[i].status;
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if (status < 0) {
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print_err_status(dev, i, status);
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if (urb->iso_frame_desc[i].status != -EPROTO)
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continue;
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}
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dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
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urb->iso_frame_desc[i].offset,
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urb->iso_frame_desc[i].actual_length);
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}
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return 0;
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}
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static int start_streaming(struct em28xx_dvb *dvb)
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{
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int rc;
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struct em28xx *dev = dvb->adapter.priv;
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int max_dvb_packet_size;
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usb_set_interface(dev->udev, 0, 1);
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rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
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if (rc < 0)
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return rc;
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max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
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return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
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EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
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dvb_isoc_copy);
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}
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static int stop_streaming(struct em28xx_dvb *dvb)
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{
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struct em28xx *dev = dvb->adapter.priv;
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em28xx_uninit_isoc(dev);
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em28xx_set_mode(dev, EM28XX_SUSPEND);
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return 0;
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}
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static int 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 em28xx_dvb *dvb = demux->priv;
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int rc, ret;
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if (!demux->dmx.frontend)
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return -EINVAL;
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mutex_lock(&dvb->lock);
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dvb->nfeeds++;
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rc = dvb->nfeeds;
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if (dvb->nfeeds == 1) {
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ret = start_streaming(dvb);
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if (ret < 0)
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rc = ret;
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}
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mutex_unlock(&dvb->lock);
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return rc;
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}
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static int 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 em28xx_dvb *dvb = demux->priv;
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int err = 0;
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mutex_lock(&dvb->lock);
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dvb->nfeeds--;
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if (0 == dvb->nfeeds)
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err = stop_streaming(dvb);
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mutex_unlock(&dvb->lock);
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return err;
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}
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/* ------------------------------------------------------------------ */
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static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
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{
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struct em28xx *dev = fe->dvb->priv;
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if (acquire)
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return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
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else
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return em28xx_set_mode(dev, EM28XX_SUSPEND);
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}
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/* ------------------------------------------------------------------ */
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static struct lgdt330x_config em2880_lgdt3303_dev = {
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.demod_address = 0x0e,
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.demod_chip = LGDT3303,
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};
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static struct zl10353_config em28xx_zl10353_with_xc3028 = {
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.demod_address = (0x1e >> 1),
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.no_tuner = 1,
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.parallel_ts = 1,
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.if2 = 45600,
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};
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static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
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.demod_address = 0x32 >> 1,
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.output_mode = S5H1409_PARALLEL_OUTPUT,
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.gpio = S5H1409_GPIO_OFF,
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.inversion = S5H1409_INVERSION_OFF,
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.status_mode = S5H1409_DEMODLOCKING,
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.mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
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};
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static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
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.demod_address = (0x1e >> 1),
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.no_tuner = 1,
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.disable_i2c_gate_ctrl = 1,
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.parallel_ts = 1,
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.if2 = 45600,
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};
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#ifdef EM28XX_DRX397XD_SUPPORT
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/* [TODO] djh - not sure yet what the device config needs to contain */
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static struct drx397xD_config em28xx_drx397xD_with_xc3028 = {
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.demod_address = (0xe0 >> 1),
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};
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#endif
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static int mt352_terratec_xs_init(struct dvb_frontend *fe)
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{
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/* Values extracted from a USB trace of the Terratec Windows driver */
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static u8 clock_config[] = { CLOCK_CTL, 0x38, 0x2c };
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static u8 reset[] = { RESET, 0x80 };
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static u8 adc_ctl_1_cfg[] = { ADC_CTL_1, 0x40 };
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static u8 agc_cfg[] = { AGC_TARGET, 0x28, 0xa0 };
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static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
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static u8 rs_err_cfg[] = { RS_ERR_PER_1, 0x00, 0x4d };
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static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
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static u8 trl_nom_cfg[] = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
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static u8 tps_given_cfg[] = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
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static u8 tuner_go[] = { TUNER_GO, 0x01};
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mt352_write(fe, clock_config, sizeof(clock_config));
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udelay(200);
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mt352_write(fe, reset, sizeof(reset));
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mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg));
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mt352_write(fe, agc_cfg, sizeof(agc_cfg));
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mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
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mt352_write(fe, rs_err_cfg, sizeof(rs_err_cfg));
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mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
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mt352_write(fe, trl_nom_cfg, sizeof(trl_nom_cfg));
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mt352_write(fe, tps_given_cfg, sizeof(tps_given_cfg));
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mt352_write(fe, tuner_go, sizeof(tuner_go));
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return 0;
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}
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static struct mt352_config terratec_xs_mt352_cfg = {
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.demod_address = (0x1e >> 1),
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.no_tuner = 1,
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.if2 = 45600,
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.demod_init = mt352_terratec_xs_init,
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};
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static struct tda10023_config em28xx_tda10023_config = {
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.demod_address = 0x0c,
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.invert = 1,
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};
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/* ------------------------------------------------------------------ */
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static int attach_xc3028(u8 addr, struct em28xx *dev)
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{
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struct dvb_frontend *fe;
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struct xc2028_config cfg;
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memset(&cfg, 0, sizeof(cfg));
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cfg.i2c_adap = &dev->i2c_adap;
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cfg.i2c_addr = addr;
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if (!dev->dvb->frontend) {
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em28xx_errdev("/2: dvb frontend not attached. "
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"Can't attach xc3028\n");
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return -EINVAL;
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}
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fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg);
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if (!fe) {
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em28xx_errdev("/2: xc3028 attach failed\n");
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dvb_frontend_detach(dev->dvb->frontend);
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dev->dvb->frontend = NULL;
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return -EINVAL;
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}
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em28xx_info("%s/2: xc3028 attached\n", dev->name);
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return 0;
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}
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/* ------------------------------------------------------------------ */
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static int register_dvb(struct em28xx_dvb *dvb,
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struct module *module,
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struct em28xx *dev,
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struct device *device)
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{
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int result;
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mutex_init(&dvb->lock);
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/* register adapter */
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result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
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adapter_nr);
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if (result < 0) {
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printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
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dev->name, result);
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goto fail_adapter;
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}
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/* Ensure all frontends negotiate bus access */
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dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
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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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printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
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dev->name, result);
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goto fail_frontend;
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}
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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 = dvb;
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dvb->demux.filternum = 256;
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dvb->demux.feednum = 256;
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dvb->demux.start_feed = start_feed;
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dvb->demux.stop_feed = stop_feed;
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result = dvb_dmx_init(&dvb->demux);
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if (result < 0) {
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printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
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dev->name, 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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printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
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dev->name, 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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printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
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dev->name, 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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printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
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dev->name, 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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printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
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dev->name, 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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return 0;
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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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return result;
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}
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static void unregister_dvb(struct em28xx_dvb *dvb)
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{
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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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static int dvb_init(struct em28xx *dev)
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{
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int result = 0;
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struct em28xx_dvb *dvb;
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if (!dev->board.has_dvb) {
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/* This device does not support the extension */
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return 0;
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}
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dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
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if (dvb == NULL) {
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em28xx_info("em28xx_dvb: memory allocation failed\n");
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return -ENOMEM;
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}
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dev->dvb = dvb;
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mutex_lock(&dev->lock);
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em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
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/* init frontend */
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switch (dev->model) {
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case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
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case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
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case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
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case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
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dvb->frontend = dvb_attach(lgdt330x_attach,
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&em2880_lgdt3303_dev,
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&dev->i2c_adap);
|
|
if (attach_xc3028(0x61, dev) < 0) {
|
|
result = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
break;
|
|
case EM2880_BOARD_KWORLD_DVB_310U:
|
|
dvb->frontend = dvb_attach(zl10353_attach,
|
|
&em28xx_zl10353_with_xc3028,
|
|
&dev->i2c_adap);
|
|
if (attach_xc3028(0x61, dev) < 0) {
|
|
result = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
break;
|
|
case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
|
|
case EM2882_BOARD_TERRATEC_HYBRID_XS:
|
|
case EM2880_BOARD_EMPIRE_DUAL_TV:
|
|
dvb->frontend = dvb_attach(zl10353_attach,
|
|
&em28xx_zl10353_xc3028_no_i2c_gate,
|
|
&dev->i2c_adap);
|
|
if (attach_xc3028(0x61, dev) < 0) {
|
|
result = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
break;
|
|
case EM2880_BOARD_TERRATEC_HYBRID_XS:
|
|
case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
|
|
case EM2881_BOARD_PINNACLE_HYBRID_PRO:
|
|
case EM2882_BOARD_DIKOM_DK300:
|
|
case EM2882_BOARD_KWORLD_VS_DVBT:
|
|
dvb->frontend = dvb_attach(zl10353_attach,
|
|
&em28xx_zl10353_xc3028_no_i2c_gate,
|
|
&dev->i2c_adap);
|
|
if (dvb->frontend == NULL) {
|
|
/* This board could have either a zl10353 or a mt352.
|
|
If the chip id isn't for zl10353, try mt352 */
|
|
dvb->frontend = dvb_attach(mt352_attach,
|
|
&terratec_xs_mt352_cfg,
|
|
&dev->i2c_adap);
|
|
}
|
|
|
|
if (attach_xc3028(0x61, dev) < 0) {
|
|
result = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
break;
|
|
case EM2883_BOARD_KWORLD_HYBRID_330U:
|
|
case EM2882_BOARD_EVGA_INDTUBE:
|
|
dvb->frontend = dvb_attach(s5h1409_attach,
|
|
&em28xx_s5h1409_with_xc3028,
|
|
&dev->i2c_adap);
|
|
if (attach_xc3028(0x61, dev) < 0) {
|
|
result = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
break;
|
|
case EM2882_BOARD_KWORLD_ATSC_315U:
|
|
dvb->frontend = dvb_attach(lgdt330x_attach,
|
|
&em2880_lgdt3303_dev,
|
|
&dev->i2c_adap);
|
|
if (dvb->frontend != NULL) {
|
|
if (!dvb_attach(simple_tuner_attach, dvb->frontend,
|
|
&dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
|
|
result = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
}
|
|
break;
|
|
case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
|
|
#ifdef EM28XX_DRX397XD_SUPPORT
|
|
/* We don't have the config structure properly populated, so
|
|
this is commented out for now */
|
|
dvb->frontend = dvb_attach(drx397xD_attach,
|
|
&em28xx_drx397xD_with_xc3028,
|
|
&dev->i2c_adap);
|
|
if (attach_xc3028(0x61, dev) < 0) {
|
|
result = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
break;
|
|
#endif
|
|
case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
|
|
/* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
|
|
dvb->frontend = dvb_attach(tda10023_attach,
|
|
&em28xx_tda10023_config,
|
|
&dev->i2c_adap, 0x48);
|
|
if (dvb->frontend) {
|
|
if (!dvb_attach(simple_tuner_attach, dvb->frontend,
|
|
&dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
|
|
result = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
em28xx_errdev("/2: The frontend of your DVB/ATSC card"
|
|
" isn't supported yet\n");
|
|
break;
|
|
}
|
|
if (NULL == dvb->frontend) {
|
|
em28xx_errdev("/2: frontend initialization failed\n");
|
|
result = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
/* define general-purpose callback pointer */
|
|
dvb->frontend->callback = em28xx_tuner_callback;
|
|
|
|
/* register everything */
|
|
result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
|
|
|
|
if (result < 0)
|
|
goto out_free;
|
|
|
|
em28xx_info("Successfully loaded em28xx-dvb\n");
|
|
ret:
|
|
em28xx_set_mode(dev, EM28XX_SUSPEND);
|
|
mutex_unlock(&dev->lock);
|
|
return result;
|
|
|
|
out_free:
|
|
kfree(dvb);
|
|
dev->dvb = NULL;
|
|
goto ret;
|
|
}
|
|
|
|
static int dvb_fini(struct em28xx *dev)
|
|
{
|
|
if (!dev->board.has_dvb) {
|
|
/* This device does not support the extension */
|
|
return 0;
|
|
}
|
|
|
|
if (dev->dvb) {
|
|
unregister_dvb(dev->dvb);
|
|
kfree(dev->dvb);
|
|
dev->dvb = NULL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct em28xx_ops dvb_ops = {
|
|
.id = EM28XX_DVB,
|
|
.name = "Em28xx dvb Extension",
|
|
.init = dvb_init,
|
|
.fini = dvb_fini,
|
|
};
|
|
|
|
static int __init em28xx_dvb_register(void)
|
|
{
|
|
return em28xx_register_extension(&dvb_ops);
|
|
}
|
|
|
|
static void __exit em28xx_dvb_unregister(void)
|
|
{
|
|
em28xx_unregister_extension(&dvb_ops);
|
|
}
|
|
|
|
module_init(em28xx_dvb_register);
|
|
module_exit(em28xx_dvb_unregister);
|