cx18-driver.c

trident tm5600的linux驱动

/*
 *  cx18 driver initialization and card probing
 *
 *  Derived from ivtv-driver.c
 *
 *  Copyright (C) 2007  Hans Verkuil <[e-mail]>
 *  Copyright (C) 2008  Andy Walls <[e-mail]>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 *  02111-1307  USA
 */

#include "cx18-driver.h"
#include "cx18-io.h"
#include "cx18-version.h"
#include "cx18-cards.h"
#include "cx18-i2c.h"
#include "cx18-irq.h"
#include "cx18-gpio.h"
#include "cx18-firmware.h"
#include "cx18-streams.h"
#include "cx18-av-core.h"
#include "cx18-scb.h"
#include "cx18-mailbox.h"
#include "cx18-ioctl.h"
#include "tuner-xc2028.h"

#include <media/tveeprom.h>


/* var to keep track of the number of array elements in use */
int cx18_cards_active;

/* If you have already X v4l cards, then set this to X. This way
   the device numbers stay matched. Example: you have a WinTV card
   without radio and a Compro H900 with. Normally this would give a
   video1 device together with a radio0 device for the Compro. By
   setting this to 1 you ensure that radio0 is now also radio1. */
int cx18_first_minor;

/* Master variable for all cx18 info */
struct cx18 *cx18_cards[CX18_MAX_CARDS];

/* Protects cx18_cards_active */
DEFINE_SPINLOCK(cx18_cards_lock);

/* add your revision and whatnot here */
static struct pci_device_id cx18_pci_tbl[] __devinitdata = {
	{PCI_VENDOR_ID_CX, PCI_DEVICE_ID_CX23418,
	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
	{0,}
};

MODULE_DEVICE_TABLE(pci, cx18_pci_tbl);

/* Parameter declarations */
static int cardtype[CX18_MAX_CARDS];
static int tuner[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
				     -1, -1, -1, -1, -1, -1, -1, -1,
				     -1, -1, -1, -1, -1, -1, -1, -1,
				     -1, -1, -1, -1, -1, -1, -1, -1 };
static int radio[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
				     -1, -1, -1, -1, -1, -1, -1, -1,
				     -1, -1, -1, -1, -1, -1, -1, -1,
				     -1, -1, -1, -1, -1, -1, -1, -1 };
static int mmio_ndelay[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
					   -1, -1, -1, -1, -1, -1, -1, -1,
					   -1, -1, -1, -1, -1, -1, -1, -1,
					   -1, -1, -1, -1, -1, -1, -1, -1 };
static unsigned cardtype_c = 1;
static unsigned tuner_c = 1;
static unsigned radio_c = 1;
static unsigned mmio_ndelay_c = 1;
static char pal[] = "--";
static char secam[] = "--";
static char ntsc[] = "-";

/* Buffers */
static int enc_mpg_buffers = CX18_DEFAULT_ENC_MPG_BUFFERS;
static int enc_ts_buffers = CX18_DEFAULT_ENC_TS_BUFFERS;
static int enc_yuv_buffers = CX18_DEFAULT_ENC_YUV_BUFFERS;
static int enc_vbi_buffers = CX18_DEFAULT_ENC_VBI_BUFFERS;
static int enc_pcm_buffers = CX18_DEFAULT_ENC_PCM_BUFFERS;

static int cx18_pci_latency = 1;

int cx18_retry_mmio = 1;
int cx18_debug;

module_param_array(tuner, int, &tuner_c, 0644);
module_param_array(radio, bool, &radio_c, 0644);
module_param_array(cardtype, int, &cardtype_c, 0644);
module_param_array(mmio_ndelay, int, &mmio_ndelay_c, 0644);
module_param_string(pal, pal, sizeof(pal), 0644);
module_param_string(secam, secam, sizeof(secam), 0644);
module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
module_param_named(debug, cx18_debug, int, 0644);
module_param_named(retry_mmio, cx18_retry_mmio, int, 0644);
module_param(cx18_pci_latency, int, 0644);
module_param(cx18_first_minor, int, 0644);

module_param(enc_mpg_buffers, int, 0644);
module_param(enc_ts_buffers, int, 0644);
module_param(enc_yuv_buffers, int, 0644);
module_param(enc_vbi_buffers, int, 0644);
module_param(enc_pcm_buffers, int, 0644);

MODULE_PARM_DESC(tuner, "Tuner type selection,\n"
			"\t\t\tsee tuner.h for values");
MODULE_PARM_DESC(radio,
		 "Enable or disable the radio. Use only if autodetection\n"
		 "\t\t\tfails. 0 = disable, 1 = enable");
MODULE_PARM_DESC(cardtype,
		 "Only use this option if your card is not detected properly.\n"
		 "\t\tSpecify card type:\n"
		 "\t\t\t 1 = Hauppauge HVR 1600 (ESMT memory)\n"
		 "\t\t\t 2 = Hauppauge HVR 1600 (Samsung memory)\n"
		 "\t\t\t 3 = Compro VideoMate H900\n"
		 "\t\t\t 4 = Yuan MPC718\n"
		 "\t\t\t 5 = Conexant Raptor PAL/SECAM\n"
		 "\t\t\t 6 = Toshiba Qosmio DVB-T/Analog\n"
		 "\t\t\t 7 = Leadtek WinFast PVR2100\n"
		 "\t\t\t 0 = Autodetect (default)\n"
		 "\t\t\t-1 = Ignore this card\n\t\t");
MODULE_PARM_DESC(pal, "Set PAL standard: B, G, H, D, K, I, M, N, Nc, 60");
MODULE_PARM_DESC(secam, "Set SECAM standard: B, G, H, D, K, L, LC");
MODULE_PARM_DESC(ntsc, "Set NTSC standard: M, J, K");
MODULE_PARM_DESC(debug,
		 "Debug level (bitmask). Default: 0\n"
		 "\t\t\t  1/0x0001: warning\n"
		 "\t\t\t  2/0x0002: info\n"
		 "\t\t\t  4/0x0004: mailbox\n"
		 "\t\t\t  8/0x0008: dma\n"
		 "\t\t\t 16/0x0010: ioctl\n"
		 "\t\t\t 32/0x0020: file\n"
		 "\t\t\t 64/0x0040: i2c\n"
		 "\t\t\t128/0x0080: irq\n"
		 "\t\t\t256/0x0100: high volume\n");
MODULE_PARM_DESC(cx18_pci_latency,
		 "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n"
		 "\t\t\tDefault: Yes");
MODULE_PARM_DESC(retry_mmio,
		 "Check and retry memory mapped IO accesses\n"
		 "\t\t\tDefault: 1 [Yes]");
MODULE_PARM_DESC(mmio_ndelay,
		 "Delay (ns) for each CX23418 memory mapped IO access.\n"
		 "\t\t\tTry larger values that are close to a multiple of the\n"
		 "\t\t\tPCI clock period, 30.3 ns, if your card doesn't work.\n"
		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_MMIO_NDELAY));
MODULE_PARM_DESC(enc_mpg_buffers,
		 "Encoder MPG Buffers (in MB)\n"
		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFFERS));
MODULE_PARM_DESC(enc_ts_buffers,
		 "Encoder TS Buffers (in MB)\n"
		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFFERS));
MODULE_PARM_DESC(enc_yuv_buffers,
		 "Encoder YUV Buffers (in MB)\n"
		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFFERS));
MODULE_PARM_DESC(enc_vbi_buffers,
		 "Encoder VBI Buffers (in MB)\n"
		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_VBI_BUFFERS));
MODULE_PARM_DESC(enc_pcm_buffers,
		 "Encoder PCM buffers (in MB)\n"
		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFFERS));

MODULE_PARM_DESC(cx18_first_minor, "Set kernel number assigned to first card");

MODULE_AUTHOR("Hans Verkuil");
MODULE_DESCRIPTION("CX23418 driver");
MODULE_SUPPORTED_DEVICE("CX23418 MPEG2 encoder");
MODULE_LICENSE("GPL");

MODULE_VERSION(CX18_VERSION);

/* Generic utility functions */
int cx18_msleep_timeout(unsigned int msecs, int intr)
{
	int timeout = msecs_to_jiffies(msecs);
	int sig;

	do {
		set_current_state(intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
		timeout = schedule_timeout(timeout);
		sig = intr ? signal_pending(current) : 0;
	} while (!sig && timeout);
	return sig;
}

/* Release ioremapped memory */
static void cx18_iounmap(struct cx18 *cx)
{
	if (cx == NULL)
		return;

	/* Release io memory */
	if (cx->enc_mem != NULL) {
		CX18_DEBUG_INFO("releasing enc_mem\n");
		iounmap(cx->enc_mem);
		cx->enc_mem = NULL;
	}
}

/* Hauppauge card? get values from tveeprom */
void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv)
{
	u8 eedata[256];

	cx->i2c_client[0].addr = 0xA0 >> 1;
	tveeprom_read(&cx->i2c_client[0], eedata, sizeof(eedata));
	tveeprom_hauppauge_analog(&cx->i2c_client[0], tv, eedata);
}

static void cx18_process_eeprom(struct cx18 *cx)
{
	struct tveeprom tv;

	cx18_read_eeprom(cx, &tv);

	/* Many thanks to Steven Toth from Hauppauge for providing the
	   model numbers */
	/* Note: the Samsung memory models cannot be reliably determined
	   from the model number. Use the cardtype module option if you
	   have one of these preproduction models. */
	switch (tv.model) {
	case 74000 ... 74999:
		cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
		break;
	case 0:
		CX18_ERR("Invalid EEPROM\n");
		return;
	default:
		CX18_ERR("Unknown model %d, defaulting to HVR-1600\n", tv.model);
		cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
		break;
	}

	cx->v4l2_cap = cx->card->v4l2_capabilities;
	cx->card_name = cx->card->name;
	cx->card_i2c = cx->card->i2c;

	CX18_INFO("Autodetected %s\n", cx->card_name);

	if (tv.tuner_type == TUNER_ABSENT)
		CX18_ERR("tveeprom cannot autodetect tuner!");

	if (cx->options.tuner == -1)
		cx->options.tuner = tv.tuner_type;
	if (cx->options.radio == -1)
		cx->options.radio = (tv.has_radio != 0);

	if (cx->std != 0)
		/* user specified tuner standard */
		return;

	/* autodetect tuner standard */
	if (tv.tuner_formats & V4L2_STD_PAL) {
		CX18_DEBUG_INFO("PAL tuner detected\n");
		cx->std |= V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
	} else if (tv.tuner_formats & V4L2_STD_NTSC) {
		CX18_DEBUG_INFO("NTSC tuner detected\n");
		cx->std |= V4L2_STD_NTSC_M;
	} else if (tv.tuner_formats & V4L2_STD_SECAM) {
		CX18_DEBUG_INFO("SECAM tuner detected\n");
		cx->std |= V4L2_STD_SECAM_L;
	} else {
		CX18_INFO("No tuner detected, default to NTSC-M\n");
		cx->std |= V4L2_STD_NTSC_M;
	}
}

static v4l2_std_id cx18_parse_std(struct cx18 *cx)
{
	switch (pal[0]) {
	case '6':
		return V4L2_STD_PAL_60;
	case 'b':
	case 'B':
	case 'g':
	case 'G':
		return V4L2_STD_PAL_BG;
	case 'h':
	case 'H':
		return V4L2_STD_PAL_H;
	case 'n':
	case 'N':
		if (pal[1] == 'c' || pal[1] == 'C')
			return V4L2_STD_PAL_Nc;
		return V4L2_STD_PAL_N;
	case 'i':
	case 'I':
		return V4L2_STD_PAL_I;
	case 'd':
	case 'D':
	case 'k':
	case 'K':
		return V4L2_STD_PAL_DK;
	case 'M':
	case 'm':
		return V4L2_STD_PAL_M;
	case '-':
		break;
	default:
		CX18_WARN("pal= argument not recognised\n");
		return 0;
	}

	switch (secam[0]) {
	case 'b':
	case 'B':
	case 'g':
	case 'G':
	case 'h':
	case 'H':
		return V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H;
	case 'd':
	case 'D':
	case 'k':
	case 'K':
		return V4L2_STD_SECAM_DK;
	case 'l':
	case 'L':
		if (secam[1] == 'C' || secam[1] == 'c')
			return V4L2_STD_SECAM_LC;
		return V4L2_STD_SECAM_L;
	case '-':
		break;
	default:
		CX18_WARN("secam= argument not recognised\n");
		return 0;
	}

	switch (ntsc[0]) {
	case 'm':
	case 'M':
		return V4L2_STD_NTSC_M;
	case 'j':
	case 'J':
		return V4L2_STD_NTSC_M_JP;
	case 'k':
	case 'K':
		return V4L2_STD_NTSC_M_KR;
	case '-':
		break;
	default:
		CX18_WARN("ntsc= argument not recognised\n");
		return 0;
	}

	/* no match found */
	return 0;
}

static void cx18_process_options(struct cx18 *cx)
{
	int i, j;

	cx->options.megabytes[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_buffers;
	cx->options.megabytes[CX18_ENC_STREAM_TYPE_TS] = enc_ts_buffers;
	cx->options.megabytes[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_buffers;
	cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] = enc_vbi_buffers;
	cx->options.megabytes[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_buffers;
	cx->options.cardtype = cardtype[cx->num];
	cx->options.tuner = tuner[cx->num];
	cx->options.radio = radio[cx->num];

	if (mmio_ndelay[cx->num] < 0)
		cx->options.mmio_ndelay = CX18_DEFAULT_MMIO_NDELAY;
	else
		cx->options.mmio_ndelay = mmio_ndelay[cx->num];

	cx->std = cx18_parse_std(cx);
	if (cx->options.cardtype == -1) {
		CX18_INFO("Ignore card\n");
		return;
	}
	cx->card = cx18_get_card(cx->options.cardtype - 1);
	if (cx->card)
		CX18_INFO("User specified %s card\n", cx->card->name);
	else if (cx->options.cardtype != 0)
		CX18_ERR("Unknown user specified type, trying to autodetect card\n");
	if (cx->card == NULL) {
		if (cx->dev->subsystem_vendor == CX18_PCI_ID_HAUPPAUGE) {
			cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
			CX18_INFO("Autodetected Hauppauge card\n");
		}
	}
	if (cx->card == NULL) {
		for (i = 0; (cx->card = cx18_get_card(i)); i++) {
			if (cx->card->pci_list == NULL)
				continue;
			for (j = 0; cx->card->pci_list[j].device; j++) {
				if (cx->dev->device !=
				    cx->card->pci_list[j].device)
					continue;
				if (cx->dev->subsystem_vendor !=
				    cx->card->pci_list[j].subsystem_vendor)
					continue;
				if (cx->dev->subsystem_device !=
				    cx->card->pci_list[j].subsystem_device)
					continue;
				CX18_INFO("Autodetected %s card\n", cx->card->name);
				goto done;
			}
		}
	}
done:

	if (cx->card == NULL) {
		cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
		CX18_ERR("Unknown card: vendor/device: [%04x:%04x]\n",
		     cx->dev->vendor, cx->dev->device);
		CX18_ERR("              subsystem vendor/device: [%04x:%04x]\n",
		     cx->dev->subsystem_vendor, cx->dev->subsystem_device);
		CX18_ERR("Defaulting to %s card\n", cx->card->name);
		CX18_ERR("Please mail the vendor/device and subsystem vendor/device IDs and what kind of\n");
		CX18_ERR("card you have to the ivtv-devel mailinglist (www.ivtvdriver.org)\n");
		CX18_ERR("Prefix your subject line with [UNKNOWN CX18 CARD].\n");
	}
	cx->v4l2_cap = cx->card->v4l2_capabilities;
	cx->card_name = cx->card->name;
	cx->card_i2c = cx->card->i2c;
}

/* Precondition: the cx18 structure has been memset to 0. Only
   the dev and num fields have been filled in.
   No assumptions on the card type may be made here (see cx18_init_struct2
   for that).
 */
static int __devinit cx18_init_struct1(struct cx18 *cx)
{
	cx->base_addr = pci_resource_start(cx->dev, 0);

	mutex_init(&cx->serialize_lock);
	mutex_init(&cx->i2c_bus_lock[0]);
	mutex_init(&cx->i2c_bus_lock[1]);
	mutex_init(&cx->gpio_lock);

	spin_lock_init(&cx->lock);
	spin_lock_init(&cx->dma_reg_lock);

	/* start counting open_id at 1 */
	cx->open_id = 1;

	/* Initial settings */
	cx2341x_fill_defaults(&cx->params);
	cx->temporal_strength = cx->params.video_temporal_filter;
	cx->spatial_strength = cx->params.video_spatial_filter;
	cx->filter_mode = cx->params.video_spatial_filter_mode |
		(cx->params.video_temporal_filter_mode << 1) |
		(cx->params.video_median_filter_type << 2);
	cx->params.port = CX2341X_PORT_MEMORY;
	cx->params.capabilities = CX2341X_CAP_HAS_TS;
	init_waitqueue_head(&cx->cap_w);
	init_waitqueue_head(&cx->mb_apu_waitq);
	init_waitqueue_head(&cx->mb_cpu_waitq);
	init_waitqueue_head(&cx->mb_epu_waitq);
	init_waitqueue_head(&cx->mb_hpu_waitq);
	init_waitqueue_head(&cx->dma_waitq);

	/* VBI */
	cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
	cx->vbi.sliced_in = &cx->vbi.in.fmt.sliced;
	cx->vbi.raw_size = 1456;
	cx->vbi.raw_decoder_line_size = 1456;
	cx->vbi.raw_decoder_sav_odd_field = 0x20;
	cx->vbi.raw_decoder_sav_even_field = 0x60;
	cx->vbi.sliced_decoder_line_size = 272;
	cx->vbi.sliced_decoder_sav_odd_field = 0xB0;
	cx->vbi.sliced_decoder_sav_even_field = 0xF0;
	return 0;
}

/* Second initialization part. Here the card type has been
   autodetected. */
static void __devinit cx18_init_struct2(struct cx18 *cx)
{
	int i;

	for (i = 0; i < CX18_CARD_MAX_VIDEO_INPUTS; i++)
		if (cx->card->video_inputs[i].video_type == 0)
			break;
	cx->nof_inputs = i;
	for (i = 0; i < CX18_CARD_MAX_AUDIO_INPUTS; i++)
		if (cx->card->audio_inputs[i].audio_type == 0)
			break;
	cx->nof_audio_inputs = i;

	/* Find tuner input */