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linux/drivers/media/video/cx18/cx18-driver.c
Andy Walls fd6b9c978d V4L/DVB (9895): cx18: Refine the firmware load and firmware startup process 
Refine the firmware load and firmware startup process.  Significant changes
are to ensure the SCB and IPC area are correct before starting up the firmware,
and letting the CPU firmware start up the APU firmware for us.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-12-30 09:39:09 -02:00

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/*
* cx18 driver initialization and card probing
*
* Derived from ivtv-driver.c
*
* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
* Copyright (C) 2008 Andy Walls <awalls@radix.net>
*
* 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 unsigned cardtype_c = 1;
static unsigned tuner_c = 1;
static unsigned radio_c = 1;
static char pal[] = "--";
static char secam[] = "--";
static char ntsc[] = "-";
/* Buffers */
static int enc_ts_buffers = CX18_DEFAULT_ENC_TS_BUFFERS;
static int enc_mpg_buffers = CX18_DEFAULT_ENC_MPG_BUFFERS;
static int enc_idx_buffers = CX18_DEFAULT_ENC_IDX_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 enc_ts_bufsize = CX18_DEFAULT_ENC_TS_BUFSIZE;
static int enc_mpg_bufsize = CX18_DEFAULT_ENC_MPG_BUFSIZE;
static int enc_idx_bufsize = CX18_DEFAULT_ENC_IDX_BUFSIZE;
static int enc_yuv_bufsize = CX18_DEFAULT_ENC_YUV_BUFSIZE;
/* VBI bufsize based on standards supported by card tuner for now */
static int enc_pcm_bufsize = CX18_DEFAULT_ENC_PCM_BUFSIZE;
static int enc_ts_bufs = -1;
static int enc_mpg_bufs = -1;
static int enc_idx_bufs = -1;
static int enc_yuv_bufs = -1;
static int enc_vbi_bufs = -1;
static int enc_pcm_bufs = -1;
static int cx18_pci_latency = 1;
static int mmio_ndelay;
static int 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_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(mmio_ndelay, int, 0644);
module_param(retry_mmio, int, 0644);
module_param(cx18_pci_latency, int, 0644);
module_param(cx18_first_minor, int, 0644);
module_param(enc_ts_buffers, int, 0644);
module_param(enc_mpg_buffers, int, 0644);
module_param(enc_idx_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_param(enc_ts_bufsize, int, 0644);
module_param(enc_mpg_bufsize, int, 0644);
module_param(enc_idx_bufsize, int, 0644);
module_param(enc_yuv_bufsize, int, 0644);
/* VBI bufsize based on standards supported by card tuner for now */
module_param(enc_pcm_bufsize, int, 0644);
module_param(enc_ts_bufs, int, 0644);
module_param(enc_mpg_bufs, int, 0644);
module_param(enc_idx_bufs, int, 0644);
module_param(enc_yuv_bufs, int, 0644);
module_param(enc_vbi_bufs, int, 0644);
module_param(enc_pcm_bufs, 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,
"(Deprecated) MMIO writes are now always checked and retried\n"
"\t\t\tEffectively: 1 [Yes]");
MODULE_PARM_DESC(mmio_ndelay,
"(Deprecated) MMIO accesses are now never purposely delayed\n"
"\t\t\tEffectively: 0 ns");
MODULE_PARM_DESC(enc_ts_buffers,
"Encoder TS buffer memory (MB). (enc_ts_bufs can override)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFFERS));
MODULE_PARM_DESC(enc_ts_bufsize,
"Size of an encoder TS buffer (kB)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFSIZE));
MODULE_PARM_DESC(enc_ts_bufs,
"Number of encoder TS buffers\n"
"\t\t\tDefault is computed from other enc_ts_* parameters");
MODULE_PARM_DESC(enc_mpg_buffers,
"Encoder MPG buffer memory (MB). (enc_mpg_bufs can override)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFFERS));
MODULE_PARM_DESC(enc_mpg_bufsize,
"Size of an encoder MPG buffer (kB)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFSIZE));
MODULE_PARM_DESC(enc_mpg_bufs,
"Number of encoder MPG buffers\n"
"\t\t\tDefault is computed from other enc_mpg_* parameters");
MODULE_PARM_DESC(enc_idx_buffers,
"Encoder IDX buffer memory (MB). (enc_idx_bufs can override)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_IDX_BUFFERS));
MODULE_PARM_DESC(enc_idx_bufsize,
"Size of an encoder IDX buffer (kB)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_IDX_BUFSIZE));
MODULE_PARM_DESC(enc_idx_bufs,
"Number of encoder IDX buffers\n"
"\t\t\tDefault is computed from other enc_idx_* parameters");
MODULE_PARM_DESC(enc_yuv_buffers,
"Encoder YUV buffer memory (MB). (enc_yuv_bufs can override)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFFERS));
MODULE_PARM_DESC(enc_yuv_bufsize,
"Size of an encoder YUV buffer (kB)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFSIZE));
MODULE_PARM_DESC(enc_yuv_bufs,
"Number of encoder YUV buffers\n"
"\t\t\tDefault is computed from other enc_yuv_* parameters");
MODULE_PARM_DESC(enc_vbi_buffers,
"Encoder VBI buffer memory (MB). (enc_vbi_bufs can override)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_VBI_BUFFERS));
MODULE_PARM_DESC(enc_vbi_bufs,
"Number of encoder VBI buffers\n"
"\t\t\tDefault is computed from enc_vbi_buffers & tuner std");
MODULE_PARM_DESC(enc_pcm_buffers,
"Encoder PCM buffer memory (MB). (enc_pcm_bufs can override)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFFERS));
MODULE_PARM_DESC(enc_pcm_bufsize,
"Size of an encoder PCM buffer (kB)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFSIZE));
MODULE_PARM_DESC(enc_pcm_bufs,
"Number of encoder PCM buffers\n"
"\t\t\tDefault is computed from other enc_pcm_* parameters");
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)
{
long 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_TS] = enc_ts_buffers;
cx->options.megabytes[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_buffers;
cx->options.megabytes[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_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.megabytes[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control only */
cx->stream_buffers[CX18_ENC_STREAM_TYPE_TS] = enc_ts_bufs;
cx->stream_buffers[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_bufs;
cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_bufs;
cx->stream_buffers[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_bufs;
cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] = enc_vbi_bufs;
cx->stream_buffers[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_bufs;
cx->stream_buffers[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control, no data */
cx->stream_buf_size[CX18_ENC_STREAM_TYPE_TS] = enc_ts_bufsize;
cx->stream_buf_size[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_bufsize;
cx->stream_buf_size[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_bufsize;
cx->stream_buf_size[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_bufsize;
cx->stream_buf_size[CX18_ENC_STREAM_TYPE_VBI] = 0; /* computed later */
cx->stream_buf_size[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_bufsize;
cx->stream_buf_size[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control no data */
/* Except for VBI ensure stream_buffers & stream_buf_size are valid */
for (i = 0; i < CX18_MAX_STREAMS; i++) {
/* User said to use 0 buffers */
if (cx->stream_buffers[i] == 0) {
cx->options.megabytes[i] = 0;
cx->stream_buf_size[i] = 0;
continue;
}
/* User said to use 0 MB total */
if (cx->options.megabytes[i] <= 0) {
cx->options.megabytes[i] = 0;
cx->stream_buffers[i] = 0;
cx->stream_buf_size[i] = 0;
continue;
}
/* VBI is computed later or user said buffer has size 0 */
if (cx->stream_buf_size[i] <= 0) {
if (i != CX18_ENC_STREAM_TYPE_VBI) {
cx->options.megabytes[i] = 0;
cx->stream_buffers[i] = 0;
cx->stream_buf_size[i] = 0;
}
continue;
}
if (cx->stream_buffers[i] < 0) {
cx->stream_buffers[i] = cx->options.megabytes[i] * 1024
/ cx->stream_buf_size[i];
} else {
/* N.B. This might round down to 0 */
cx->options.megabytes[i] =
cx->stream_buffers[i] * cx->stream_buf_size[i] / 1024;
}
cx->stream_buf_size[i] *= 1024; /* convert from kB to bytes */
}
cx->options.cardtype = cardtype[cx->num];
cx->options.tuner = tuner[cx->num];
cx->options.radio = radio[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)
{
int i;
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);
mutex_init(&cx->epu2apu_mb_lock);
mutex_init(&cx->epu2cpu_mb_lock);
spin_lock_init(&cx->lock);
cx->work_queue = create_singlethread_workqueue(cx->name);
if (cx->work_queue == NULL) {
CX18_ERR("Unable to create work hander thread\n");
return -ENOMEM;
}
for (i = 0; i < CX18_MAX_EPU_WORK_ORDERS; i++) {
cx->epu_work_order[i].cx = cx;
cx->epu_work_order[i].str = cx->epu_debug_str;
INIT_WORK(&cx->epu_work_order[i].work, cx18_epu_work_handler);
}
/* 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->dma_waitq);
/* VBI */
cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
cx->vbi.sliced_in = &cx->vbi.in.fmt.sliced;
/*
* The VBI line sizes depend on the pixel clock and the horiz rate
*
* (1/Fh)*(2*Fp) = Samples/line
* = 4 bytes EAV + Anc data in hblank + 4 bytes SAV + active samples
*
* Sliced VBI is sent as ancillary data during horizontal blanking
* Raw VBI is sent as active video samples during vertcal blanking
*
* We use a BT.656 pxiel clock of 13.5 MHz and a BT.656 active line
* length of 720 pixels @ 4:2:2 sampling. Thus...
*
* For systems that use a 15.734 kHz horizontal rate, such as
* NTSC-M, PAL-M, PAL-60, and other 60 Hz/525 line systems, we have:
*
* (1/15.734 kHz) * 2 * 13.5 MHz = 1716 samples/line =
* 4 bytes SAV + 268 bytes anc data + 4 bytes SAV + 1440 active samples
*
* For systems that use a 15.625 kHz horizontal rate, such as
* PAL-B/G/H, PAL-I, SECAM-L and other 50 Hz/625 line systems, we have:
*
* (1/15.625 kHz) * 2 * 13.5 MHz = 1728 samples/line =
* 4 bytes SAV + 280 bytes anc data + 4 bytes SAV + 1440 active samples
*
*/
/* FIXME: init these based on tuner std & modify when std changes */
/* CX18-AV-Core number of VBI samples output per horizontal line */
cx->vbi.raw_decoder_line_size = 1444; /* 4 byte SAV + 2 * 720 */
cx->vbi.sliced_decoder_line_size = 272; /* 60 Hz: 268+4, 50 Hz: 280+4 */
/* CX18-AV-Core VBI samples/line possibly rounded up */
cx->vbi.raw_size = 1444; /* Real max size is 1444 */
cx->vbi.sliced_size = 284; /* Real max size is 284 */
/*
* CX18-AV-Core SAV/EAV RP codes in VIP 1.x mode
* Task Field VerticalBlank HorizontalBlank 0 0 0 0
*/
cx->vbi.raw_decoder_sav_odd_field = 0x20; /* V */
cx->vbi.raw_decoder_sav_even_field = 0x60; /* FV */
cx->vbi.sliced_decoder_sav_odd_field = 0xB0; /* T VH - actually EAV */
cx->vbi.sliced_decoder_sav_even_field = 0xF0; /* TFVH - actually EAV */
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 */
for (i = 0; i < cx->nof_inputs; i++) {
if (cx->card->video_inputs[i].video_type ==
CX18_CARD_INPUT_VID_TUNER)
break;
}
if (i == cx->nof_inputs)
i = 0;
cx->active_input = i;
cx->audio_input = cx->card->video_inputs[i].audio_index;
cx->av_state.vid_input = CX18_AV_COMPOSITE7;
cx->av_state.aud_input = CX18_AV_AUDIO8;
cx->av_state.audclk_freq = 48000;
cx->av_state.audmode = V4L2_TUNER_MODE_LANG1;
/* FIXME - 8 is NTSC value, investigate */
cx->av_state.vbi_line_offset = 8;
}
static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *dev,
const struct pci_device_id *pci_id)
{
u16 cmd;
unsigned char pci_latency;
CX18_DEBUG_INFO("Enabling pci device\n");
if (pci_enable_device(dev)) {
CX18_ERR("Can't enable device %d!\n", cx->num);
return -EIO;
}
if (pci_set_dma_mask(dev, 0xffffffff)) {
CX18_ERR("No suitable DMA available on card %d.\n", cx->num);
return -EIO;
}
if (!request_mem_region(cx->base_addr, CX18_MEM_SIZE, "cx18 encoder")) {
CX18_ERR("Cannot request encoder memory region on card %d.\n", cx->num);
return -EIO;
}
/* Enable bus mastering and memory mapped IO for the CX23418 */
pci_read_config_word(dev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, cmd);
pci_read_config_byte(dev, PCI_CLASS_REVISION, &cx->card_rev);
pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency);
if (pci_latency < 64 && cx18_pci_latency) {
CX18_INFO("Unreasonably low latency timer, "
"setting to 64 (was %d)\n", pci_latency);
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency);
}
CX18_DEBUG_INFO("cx%d (rev %d) at %02x:%02x.%x, "
"irq: %d, latency: %d, memory: 0x%lx\n",
cx->dev->device, cx->card_rev, dev->bus->number,
PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn),
cx->dev->irq, pci_latency, (unsigned long)cx->base_addr);
return 0;
}
#ifdef MODULE
static u32 cx18_request_module(struct cx18 *cx, u32 hw,
const char *name, u32 id)
{
if ((hw & id) == 0)
return hw;
if (request_module(name) != 0) {
CX18_ERR("Failed to load module %s\n", name);
return hw & ~id;
}
CX18_DEBUG_INFO("Loaded module %s\n", name);
return hw;
}
#endif
static void cx18_load_and_init_modules(struct cx18 *cx)
{
u32 hw = cx->card->hw_all;
int i;
#ifdef MODULE
/* load modules */
#ifdef CONFIG_MEDIA_TUNER_MODULE
hw = cx18_request_module(cx, hw, "tuner", CX18_HW_TUNER);
#endif
#ifdef CONFIG_VIDEO_CS5345_MODULE
hw = cx18_request_module(cx, hw, "cs5345", CX18_HW_CS5345);
#endif
#endif
/* check which i2c devices are actually found */
for (i = 0; i < 32; i++) {
u32 device = 1 << i;
if (!(device & hw))
continue;
if (device == CX18_HW_GPIO || device == CX18_HW_TVEEPROM ||
device == CX18_HW_CX23418 || device == CX18_HW_DVB) {
/* These 'devices' do not use i2c probing */
cx->hw_flags |= device;
continue;
}
cx18_i2c_register(cx, i);
if (cx18_i2c_hw_addr(cx, device) > 0)
cx->hw_flags |= device;
}
hw = cx->hw_flags;
}
static int __devinit cx18_probe(struct pci_dev *dev,
const struct pci_device_id *pci_id)
{
int retval = 0;
int i;
int vbi_buf_size;
u32 devtype;
struct cx18 *cx;
spin_lock(&cx18_cards_lock);
/* Make sure we've got a place for this card */
if (cx18_cards_active == CX18_MAX_CARDS) {
printk(KERN_ERR "cx18: Maximum number of cards detected (%d).\n",
cx18_cards_active);
spin_unlock(&cx18_cards_lock);
return -ENOMEM;
}
cx = kzalloc(sizeof(struct cx18), GFP_ATOMIC);
if (!cx) {
spin_unlock(&cx18_cards_lock);
return -ENOMEM;
}
cx18_cards[cx18_cards_active] = cx;
cx->dev = dev;
cx->num = cx18_cards_active++;
snprintf(cx->name, sizeof(cx->name), "cx18-%d", cx->num);
CX18_INFO("Initializing card #%d\n", cx->num);
spin_unlock(&cx18_cards_lock);
cx18_process_options(cx);
if (cx->options.cardtype == -1) {
retval = -ENODEV;
goto err;
}
if (cx18_init_struct1(cx)) {
retval = -ENOMEM;
goto err;
}
CX18_DEBUG_INFO("base addr: 0x%08x\n", cx->base_addr);
/* PCI Device Setup */
retval = cx18_setup_pci(cx, dev, pci_id);
if (retval != 0)
goto free_workqueue;
/* save cx in the pci struct for later use */
pci_set_drvdata(dev, cx);
/* map io memory */
CX18_DEBUG_INFO("attempting ioremap at 0x%08x len 0x%08x\n",
cx->base_addr + CX18_MEM_OFFSET, CX18_MEM_SIZE);
cx->enc_mem = ioremap_nocache(cx->base_addr + CX18_MEM_OFFSET,
CX18_MEM_SIZE);
if (!cx->enc_mem) {
CX18_ERR("ioremap failed, perhaps increasing __VMALLOC_RESERVE in page.h\n");
CX18_ERR("or disabling CONFIG_HIGHMEM4G into the kernel would help\n");
retval = -ENOMEM;
goto free_mem;
}
cx->reg_mem = cx->enc_mem + CX18_REG_OFFSET;
devtype = cx18_read_reg(cx, 0xC72028);
switch (devtype & 0xff000000) {
case 0xff000000:
CX18_INFO("cx23418 revision %08x (A)\n", devtype);
break;
case 0x01000000:
CX18_INFO("cx23418 revision %08x (B)\n", devtype);
break;
default:
CX18_INFO("cx23418 revision %08x (Unknown)\n", devtype);
break;
}
cx18_init_power(cx, 1);
cx18_init_memory(cx);
cx->scb = (struct cx18_scb __iomem *)(cx->enc_mem + SCB_OFFSET);
cx18_init_scb(cx);
cx18_gpio_init(cx);
/* active i2c */
CX18_DEBUG_INFO("activating i2c...\n");
retval = init_cx18_i2c(cx);
if (retval) {
CX18_ERR("Could not initialize i2c\n");
goto free_map;
}
CX18_DEBUG_INFO("Active card count: %d.\n", cx18_cards_active);
if (cx->card->hw_all & CX18_HW_TVEEPROM) {
/* Based on the model number the cardtype may be changed.
The PCI IDs are not always reliable. */
cx18_process_eeprom(cx);
}
if (cx->card->comment)
CX18_INFO("%s", cx->card->comment);
if (cx->card->v4l2_capabilities == 0) {
retval = -ENODEV;
goto free_i2c;
}
cx18_init_memory(cx);
cx18_init_scb(cx);
/* Register IRQ */
retval = request_irq(cx->dev->irq, cx18_irq_handler,
IRQF_SHARED | IRQF_DISABLED, cx->name, (void *)cx);
if (retval) {
CX18_ERR("Failed to register irq %d\n", retval);
goto free_i2c;
}
if (cx->std == 0)
cx->std = V4L2_STD_NTSC_M;
if (cx->options.tuner == -1) {
for (i = 0; i < CX18_CARD_MAX_TUNERS; i++) {
if ((cx->std & cx->card->tuners[i].std) == 0)
continue;
cx->options.tuner = cx->card->tuners[i].tuner;
break;
}
}
/* if no tuner was found, then pick the first tuner in the card list */
if (cx->options.tuner == -1 && cx->card->tuners[0].std) {
cx->std = cx->card->tuners[0].std;
if (cx->std & V4L2_STD_PAL)
cx->std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
else if (cx->std & V4L2_STD_NTSC)
cx->std = V4L2_STD_NTSC_M;
else if (cx->std & V4L2_STD_SECAM)
cx->std = V4L2_STD_SECAM_L;
cx->options.tuner = cx->card->tuners[0].tuner;
}
if (cx->options.radio == -1)
cx->options.radio = (cx->card->radio_input.audio_type != 0);
/* The card is now fully identified, continue with card-specific
initialization. */
cx18_init_struct2(cx);
cx18_load_and_init_modules(cx);
if (cx->std & V4L2_STD_525_60) {
cx->is_60hz = 1;
cx->is_out_60hz = 1;
} else {
cx->is_50hz = 1;
cx->is_out_50hz = 1;
}
cx->params.video_gop_size = cx->is_60hz ? 15 : 12;
/*
* FIXME: setting the buffer size based on the tuner standard is
* suboptimal, as the CVBS and SVideo inputs could use a different std
* and the buffer could end up being too small in that case.
*/
vbi_buf_size = cx->vbi.raw_size * (cx->is_60hz ? 24 : 36) / 2;
cx->stream_buf_size[CX18_ENC_STREAM_TYPE_VBI] = vbi_buf_size;
if (cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] < 0)
cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] =
cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] * 1024 * 1024
/ vbi_buf_size;
else
cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] =
cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] * vbi_buf_size
/ (1024 * 1024);
if (cx->options.radio > 0)
cx->v4l2_cap |= V4L2_CAP_RADIO;
if (cx->options.tuner > -1) {
struct tuner_setup setup;
setup.addr = ADDR_UNSET;
setup.type = cx->options.tuner;
setup.mode_mask = T_ANALOG_TV; /* matches TV tuners */
setup.tuner_callback = (setup.type == TUNER_XC2028) ?
cx18_reset_tuner_gpio : NULL;
cx18_call_i2c_clients(cx, TUNER_SET_TYPE_ADDR, &setup);
if (setup.type == TUNER_XC2028) {
static struct xc2028_ctrl ctrl = {
.fname = XC2028_DEFAULT_FIRMWARE,
.max_len = 64,
};
struct v4l2_priv_tun_config cfg = {
.tuner = cx->options.tuner,
.priv = &ctrl,
};
cx18_call_i2c_clients(cx, TUNER_SET_CONFIG, &cfg);
}
}
/* The tuner is fixed to the standard. The other inputs (e.g. S-Video)
are not. */
cx->tuner_std = cx->std;
retval = cx18_streams_setup(cx);
if (retval) {
CX18_ERR("Error %d setting up streams\n", retval);
goto free_irq;
}
retval = cx18_streams_register(cx);
if (retval) {
CX18_ERR("Error %d registering devices\n", retval);
goto free_streams;
}
CX18_INFO("Initialized card #%d: %s\n", cx->num, cx->card_name);
return 0;
free_streams:
cx18_streams_cleanup(cx, 1);
free_irq:
free_irq(cx->dev->irq, (void *)cx);
free_i2c:
exit_cx18_i2c(cx);
free_map:
cx18_iounmap(cx);
free_mem:
release_mem_region(cx->base_addr, CX18_MEM_SIZE);
free_workqueue:
destroy_workqueue(cx->work_queue);
err:
if (retval == 0)
retval = -ENODEV;
CX18_ERR("Error %d on initialization\n", retval);
i = cx->num;
spin_lock(&cx18_cards_lock);
kfree(cx18_cards[i]);
cx18_cards[i] = NULL;
spin_unlock(&cx18_cards_lock);
return retval;
}
int cx18_init_on_first_open(struct cx18 *cx)
{
int video_input;
int fw_retry_count = 3;
struct v4l2_frequency vf;
struct cx18_open_id fh;
fh.cx = cx;
if (test_bit(CX18_F_I_FAILED, &cx->i_flags))
return -ENXIO;
if (test_and_set_bit(CX18_F_I_INITED, &cx->i_flags))
return 0;
while (--fw_retry_count > 0) {
/* load firmware */
if (cx18_firmware_init(cx) == 0)
break;
if (fw_retry_count > 1)
CX18_WARN("Retry loading firmware\n");
}
if (fw_retry_count == 0) {
set_bit(CX18_F_I_FAILED, &cx->i_flags);
return -ENXIO;
}
set_bit(CX18_F_I_LOADED_FW, &cx->i_flags);
/* Init the firmware twice to work around a silicon bug
* transport related. */
fw_retry_count = 3;
while (--fw_retry_count > 0) {
/* load firmware */
if (cx18_firmware_init(cx) == 0)
break;
if (fw_retry_count > 1)
CX18_WARN("Retry loading firmware\n");
}
if (fw_retry_count == 0) {
set_bit(CX18_F_I_FAILED, &cx->i_flags);
return -ENXIO;
}
vf.tuner = 0;
vf.type = V4L2_TUNER_ANALOG_TV;
vf.frequency = 6400; /* the tuner 'baseline' frequency */
/* Set initial frequency. For PAL/SECAM broadcasts no
'default' channel exists AFAIK. */
if (cx->std == V4L2_STD_NTSC_M_JP)
vf.frequency = 1460; /* ch. 1 91250*16/1000 */
else if (cx->std & V4L2_STD_NTSC_M)
vf.frequency = 1076; /* ch. 4 67250*16/1000 */
video_input = cx->active_input;
cx->active_input++; /* Force update of input */
cx18_s_input(NULL, &fh, video_input);
/* Let the VIDIOC_S_STD ioctl do all the work, keeps the code
in one place. */
cx->std++; /* Force full standard initialization */
cx18_s_std(NULL, &fh, &cx->tuner_std);
cx18_s_frequency(NULL, &fh, &vf);
return 0;
}
static void cx18_cancel_epu_work_orders(struct cx18 *cx)
{
int i;
for (i = 0; i < CX18_MAX_EPU_WORK_ORDERS; i++)
cancel_work_sync(&cx->epu_work_order[i].work);
}
static void cx18_remove(struct pci_dev *pci_dev)
{
struct cx18 *cx = pci_get_drvdata(pci_dev);
CX18_DEBUG_INFO("Removing Card #%d\n", cx->num);
/* Stop all captures */
CX18_DEBUG_INFO("Stopping all streams\n");
if (atomic_read(&cx->tot_capturing) > 0)
cx18_stop_all_captures(cx);
/* Interrupts */
cx18_sw1_irq_disable(cx, IRQ_CPU_TO_EPU | IRQ_APU_TO_EPU);
cx18_sw2_irq_disable(cx, IRQ_CPU_TO_EPU_ACK | IRQ_APU_TO_EPU_ACK);
cx18_halt_firmware(cx);
cx18_cancel_epu_work_orders(cx);
destroy_workqueue(cx->work_queue);
cx18_streams_cleanup(cx, 1);
exit_cx18_i2c(cx);
free_irq(cx->dev->irq, (void *)cx);
cx18_iounmap(cx);
release_mem_region(cx->base_addr, CX18_MEM_SIZE);
pci_disable_device(cx->dev);
CX18_INFO("Removed %s, card #%d\n", cx->card_name, cx->num);
}
/* define a pci_driver for card detection */
static struct pci_driver cx18_pci_driver = {
.name = "cx18",
.id_table = cx18_pci_tbl,
.probe = cx18_probe,
.remove = cx18_remove,
};
static int module_start(void)
{
printk(KERN_INFO "cx18: Start initialization, version %s\n", CX18_VERSION);
memset(cx18_cards, 0, sizeof(cx18_cards));
/* Validate parameters */
if (cx18_first_minor < 0 || cx18_first_minor >= CX18_MAX_CARDS) {
printk(KERN_ERR "cx18: Exiting, cx18_first_minor must be between 0 and %d\n",
CX18_MAX_CARDS - 1);
return -1;
}
if (cx18_debug < 0 || cx18_debug > 511) {
cx18_debug = 0;
printk(KERN_INFO "cx18: Debug value must be >= 0 and <= 511!\n");
}
if (pci_register_driver(&cx18_pci_driver)) {
printk(KERN_ERR "cx18: Error detecting PCI card\n");
return -ENODEV;
}
printk(KERN_INFO "cx18: End initialization\n");
return 0;
}
static void module_cleanup(void)
{
int i;
pci_unregister_driver(&cx18_pci_driver);
for (i = 0; i < cx18_cards_active; i++) {
if (cx18_cards[i] == NULL)
continue;
kfree(cx18_cards[i]);
}
}
module_init(module_start);
module_exit(module_cleanup);
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