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linuxdebug/drivers/media/pci/saa7164/saa7164-core.c

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2010-2015 Steven Toth <stoth@kernellabs.com>
*/
#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kmod.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <asm/div64.h>
#include "saa7164.h"
MODULE_DESCRIPTION("Driver for NXP SAA7164 based TV cards");
MODULE_AUTHOR("Steven Toth <stoth@kernellabs.com>");
MODULE_LICENSE("GPL");
/*
* 1 Basic
* 2
* 4 i2c
* 8 api
* 16 cmd
* 32 bus
*/
unsigned int saa_debug;
module_param_named(debug, saa_debug, int, 0644);
MODULE_PARM_DESC(debug, "enable debug messages");
static unsigned int fw_debug;
module_param(fw_debug, int, 0644);
MODULE_PARM_DESC(fw_debug, "Firmware debug level def:2");
unsigned int encoder_buffers = SAA7164_MAX_ENCODER_BUFFERS;
module_param(encoder_buffers, int, 0644);
MODULE_PARM_DESC(encoder_buffers, "Total buffers in read queue 16-512 def:64");
unsigned int vbi_buffers = SAA7164_MAX_VBI_BUFFERS;
module_param(vbi_buffers, int, 0644);
MODULE_PARM_DESC(vbi_buffers, "Total buffers in read queue 16-512 def:64");
unsigned int waitsecs = 10;
module_param(waitsecs, int, 0644);
MODULE_PARM_DESC(waitsecs, "timeout on firmware messages");
static unsigned int card[] = {[0 ... (SAA7164_MAXBOARDS - 1)] = UNSET };
module_param_array(card, int, NULL, 0444);
MODULE_PARM_DESC(card, "card type");
static unsigned int print_histogram = 64;
module_param(print_histogram, int, 0644);
MODULE_PARM_DESC(print_histogram, "print histogram values once");
unsigned int crc_checking = 1;
module_param(crc_checking, int, 0644);
MODULE_PARM_DESC(crc_checking, "enable crc sanity checking on buffers");
static unsigned int guard_checking = 1;
module_param(guard_checking, int, 0644);
MODULE_PARM_DESC(guard_checking,
"enable dma sanity checking for buffer overruns");
static bool enable_msi = true;
module_param(enable_msi, bool, 0444);
MODULE_PARM_DESC(enable_msi,
"enable the use of an msi interrupt if available");
static unsigned int saa7164_devcount;
static DEFINE_MUTEX(devlist);
LIST_HEAD(saa7164_devlist);
#define INT_SIZE 16
static void saa7164_pack_verifier(struct saa7164_buffer *buf)
{
u8 *p = (u8 *)buf->cpu;
int i;
for (i = 0; i < buf->actual_size; i += 2048) {
if ((*(p + i + 0) != 0x00) || (*(p + i + 1) != 0x00) ||
(*(p + i + 2) != 0x01) || (*(p + i + 3) != 0xBA)) {
printk(KERN_ERR "No pack at 0x%x\n", i);
#if 0
print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1,
p + 1, 32, false);
#endif
}
}
}
#define FIXED_VIDEO_PID 0xf1
#define FIXED_AUDIO_PID 0xf2
static void saa7164_ts_verifier(struct saa7164_buffer *buf)
{
struct saa7164_port *port = buf->port;
u32 i;
u8 cc, a;
u16 pid;
u8 *bufcpu = (u8 *)buf->cpu;
port->sync_errors = 0;
port->v_cc_errors = 0;
port->a_cc_errors = 0;
for (i = 0; i < buf->actual_size; i += 188) {
if (*(bufcpu + i) != 0x47)
port->sync_errors++;
/* TODO: Query pid lower 8 bits, ignoring upper bits intensionally */
pid = ((*(bufcpu + i + 1) & 0x1f) << 8) | *(bufcpu + i + 2);
cc = *(bufcpu + i + 3) & 0x0f;
if (pid == FIXED_VIDEO_PID) {
a = ((port->last_v_cc + 1) & 0x0f);
if (a != cc) {
printk(KERN_ERR "video cc last = %x current = %x i = %d\n",
port->last_v_cc, cc, i);
port->v_cc_errors++;
}
port->last_v_cc = cc;
} else
if (pid == FIXED_AUDIO_PID) {
a = ((port->last_a_cc + 1) & 0x0f);
if (a != cc) {
printk(KERN_ERR "audio cc last = %x current = %x i = %d\n",
port->last_a_cc, cc, i);
port->a_cc_errors++;
}
port->last_a_cc = cc;
}
}
/* Only report errors if we've been through this function at least
* once already and the cached cc values are primed. First time through
* always generates errors.
*/
if (port->v_cc_errors && (port->done_first_interrupt > 1))
printk(KERN_ERR "video pid cc, %d errors\n", port->v_cc_errors);
if (port->a_cc_errors && (port->done_first_interrupt > 1))
printk(KERN_ERR "audio pid cc, %d errors\n", port->a_cc_errors);
if (port->sync_errors && (port->done_first_interrupt > 1))
printk(KERN_ERR "sync_errors = %d\n", port->sync_errors);
if (port->done_first_interrupt == 1)
port->done_first_interrupt++;
}
static void saa7164_histogram_reset(struct saa7164_histogram *hg, char *name)
{
int i;
memset(hg, 0, sizeof(struct saa7164_histogram));
strscpy(hg->name, name, sizeof(hg->name));
/* First 30ms x 1ms */
for (i = 0; i < 30; i++)
hg->counter1[0 + i].val = i;
/* 30 - 200ms x 10ms */
for (i = 0; i < 18; i++)
hg->counter1[30 + i].val = 30 + (i * 10);
/* 200 - 2000ms x 100ms */
for (i = 0; i < 15; i++)
hg->counter1[48 + i].val = 200 + (i * 200);
/* Catch all massive value (2secs) */
hg->counter1[55].val = 2000;
/* Catch all massive value (4secs) */
hg->counter1[56].val = 4000;
/* Catch all massive value (8secs) */
hg->counter1[57].val = 8000;
/* Catch all massive value (15secs) */
hg->counter1[58].val = 15000;
/* Catch all massive value (30secs) */
hg->counter1[59].val = 30000;
/* Catch all massive value (60secs) */
hg->counter1[60].val = 60000;
/* Catch all massive value (5mins) */
hg->counter1[61].val = 300000;
/* Catch all massive value (15mins) */
hg->counter1[62].val = 900000;
/* Catch all massive values (1hr) */
hg->counter1[63].val = 3600000;
}
void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val)
{
int i;
for (i = 0; i < 64; i++) {
if (val <= hg->counter1[i].val) {
hg->counter1[i].count++;
hg->counter1[i].update_time = jiffies;
break;
}
}
}
static void saa7164_histogram_print(struct saa7164_port *port,
struct saa7164_histogram *hg)
{
u32 entries = 0;
int i;
printk(KERN_ERR "Histogram named %s (ms, count, last_update_jiffy)\n", hg->name);
for (i = 0; i < 64; i++) {
if (hg->counter1[i].count == 0)
continue;
printk(KERN_ERR " %4d %12d %Ld\n",
hg->counter1[i].val,
hg->counter1[i].count,
hg->counter1[i].update_time);
entries++;
}
printk(KERN_ERR "Total: %d\n", entries);
}
static void saa7164_work_enchandler_helper(struct saa7164_port *port, int bufnr)
{
struct saa7164_dev *dev = port->dev;
struct saa7164_buffer *buf = NULL;
struct saa7164_user_buffer *ubuf = NULL;
struct list_head *c, *n;
int i = 0;
u8 *p;
mutex_lock(&port->dmaqueue_lock);
list_for_each_safe(c, n, &port->dmaqueue.list) {
buf = list_entry(c, struct saa7164_buffer, list);
if (i++ > port->hwcfg.buffercount) {
printk(KERN_ERR "%s() illegal i count %d\n",
__func__, i);
break;
}
if (buf->idx == bufnr) {
/* Found the buffer, deal with it */
dprintk(DBGLVL_IRQ, "%s() bufnr: %d\n", __func__, bufnr);
if (crc_checking) {
/* Throw a new checksum on the dma buffer */
buf->crc = crc32(0, buf->cpu, buf->actual_size);
}
if (guard_checking) {
p = (u8 *)buf->cpu;
if ((*(p + buf->actual_size + 0) != 0xff) ||
(*(p + buf->actual_size + 1) != 0xff) ||
(*(p + buf->actual_size + 2) != 0xff) ||
(*(p + buf->actual_size + 3) != 0xff) ||
(*(p + buf->actual_size + 0x10) != 0xff) ||
(*(p + buf->actual_size + 0x11) != 0xff) ||
(*(p + buf->actual_size + 0x12) != 0xff) ||
(*(p + buf->actual_size + 0x13) != 0xff)) {
printk(KERN_ERR "%s() buf %p guard buffer breach\n",
__func__, buf);
#if 0
print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1,
p + buf->actual_size - 32, 64, false);
#endif
}
}
if ((port->nr != SAA7164_PORT_VBI1) && (port->nr != SAA7164_PORT_VBI2)) {
/* Validate the incoming buffer content */
if (port->encoder_params.stream_type == V4L2_MPEG_STREAM_TYPE_MPEG2_TS)
saa7164_ts_verifier(buf);
else if (port->encoder_params.stream_type == V4L2_MPEG_STREAM_TYPE_MPEG2_PS)
saa7164_pack_verifier(buf);
}
/* find a free user buffer and clone to it */
if (!list_empty(&port->list_buf_free.list)) {
/* Pull the first buffer from the used list */
ubuf = list_first_entry(&port->list_buf_free.list,
struct saa7164_user_buffer, list);
if (buf->actual_size <= ubuf->actual_size) {
memcpy(ubuf->data, buf->cpu, ubuf->actual_size);
if (crc_checking) {
/* Throw a new checksum on the read buffer */
ubuf->crc = crc32(0, ubuf->data, ubuf->actual_size);
}
/* Requeue the buffer on the free list */
ubuf->pos = 0;
list_move_tail(&ubuf->list,
&port->list_buf_used.list);
/* Flag any userland waiters */
wake_up_interruptible(&port->wait_read);
} else {
printk(KERN_ERR "buf %p bufsize fails match\n", buf);
}
} else
printk(KERN_ERR "encirq no free buffers, increase param encoder_buffers\n");
/* Ensure offset into buffer remains 0, fill buffer
* with known bad data. We check for this data at a later point
* in time. */
saa7164_buffer_zero_offsets(port, bufnr);
memset(buf->cpu, 0xff, buf->pci_size);
if (crc_checking) {
/* Throw yet aanother new checksum on the dma buffer */
buf->crc = crc32(0, buf->cpu, buf->actual_size);
}
break;
}
}
mutex_unlock(&port->dmaqueue_lock);
}
static void saa7164_work_enchandler(struct work_struct *w)
{
struct saa7164_port *port =
container_of(w, struct saa7164_port, workenc);
struct saa7164_dev *dev = port->dev;
u32 wp, mcb, rp, cnt = 0;
port->last_svc_msecs_diff = port->last_svc_msecs;
port->last_svc_msecs = jiffies_to_msecs(jiffies);
port->last_svc_msecs_diff = port->last_svc_msecs -
port->last_svc_msecs_diff;
saa7164_histogram_update(&port->svc_interval,
port->last_svc_msecs_diff);
port->last_irq_svc_msecs_diff = port->last_svc_msecs -
port->last_irq_msecs;
saa7164_histogram_update(&port->irq_svc_interval,
port->last_irq_svc_msecs_diff);
dprintk(DBGLVL_IRQ,
"%s() %Ldms elapsed irq->deferred %Ldms wp: %d rp: %d\n",
__func__,
port->last_svc_msecs_diff,
port->last_irq_svc_msecs_diff,
port->last_svc_wp,
port->last_svc_rp
);
/* Current write position */
wp = saa7164_readl(port->bufcounter);
if (wp > (port->hwcfg.buffercount - 1)) {
printk(KERN_ERR "%s() illegal buf count %d\n", __func__, wp);
return;
}
/* Most current complete buffer */
if (wp == 0)
mcb = (port->hwcfg.buffercount - 1);
else
mcb = wp - 1;
while (1) {
if (port->done_first_interrupt == 0) {
port->done_first_interrupt++;
rp = mcb;
} else
rp = (port->last_svc_rp + 1) % 8;
if (rp > (port->hwcfg.buffercount - 1)) {
printk(KERN_ERR "%s() illegal rp count %d\n", __func__, rp);
break;
}
saa7164_work_enchandler_helper(port, rp);
port->last_svc_rp = rp;
cnt++;
if (rp == mcb)
break;
}
/* TODO: Convert this into a /proc/saa7164 style readable file */
if (print_histogram == port->nr) {
saa7164_histogram_print(port, &port->irq_interval);
saa7164_histogram_print(port, &port->svc_interval);
saa7164_histogram_print(port, &port->irq_svc_interval);
saa7164_histogram_print(port, &port->read_interval);
saa7164_histogram_print(port, &port->poll_interval);
/* TODO: fix this to preserve any previous state */
print_histogram = 64 + port->nr;
}
}
static void saa7164_work_vbihandler(struct work_struct *w)
{
struct saa7164_port *port =
container_of(w, struct saa7164_port, workenc);
struct saa7164_dev *dev = port->dev;
u32 wp, mcb, rp, cnt = 0;
port->last_svc_msecs_diff = port->last_svc_msecs;
port->last_svc_msecs = jiffies_to_msecs(jiffies);
port->last_svc_msecs_diff = port->last_svc_msecs -
port->last_svc_msecs_diff;
saa7164_histogram_update(&port->svc_interval,
port->last_svc_msecs_diff);
port->last_irq_svc_msecs_diff = port->last_svc_msecs -
port->last_irq_msecs;
saa7164_histogram_update(&port->irq_svc_interval,
port->last_irq_svc_msecs_diff);
dprintk(DBGLVL_IRQ,
"%s() %Ldms elapsed irq->deferred %Ldms wp: %d rp: %d\n",
__func__,
port->last_svc_msecs_diff,
port->last_irq_svc_msecs_diff,
port->last_svc_wp,
port->last_svc_rp
);
/* Current write position */
wp = saa7164_readl(port->bufcounter);
if (wp > (port->hwcfg.buffercount - 1)) {
printk(KERN_ERR "%s() illegal buf count %d\n", __func__, wp);
return;
}
/* Most current complete buffer */
if (wp == 0)
mcb = (port->hwcfg.buffercount - 1);
else
mcb = wp - 1;
while (1) {
if (port->done_first_interrupt == 0) {
port->done_first_interrupt++;
rp = mcb;
} else
rp = (port->last_svc_rp + 1) % 8;
if (rp > (port->hwcfg.buffercount - 1)) {
printk(KERN_ERR "%s() illegal rp count %d\n", __func__, rp);
break;
}
saa7164_work_enchandler_helper(port, rp);
port->last_svc_rp = rp;
cnt++;
if (rp == mcb)
break;
}
/* TODO: Convert this into a /proc/saa7164 style readable file */
if (print_histogram == port->nr) {
saa7164_histogram_print(port, &port->irq_interval);
saa7164_histogram_print(port, &port->svc_interval);
saa7164_histogram_print(port, &port->irq_svc_interval);
saa7164_histogram_print(port, &port->read_interval);
saa7164_histogram_print(port, &port->poll_interval);
/* TODO: fix this to preserve any previous state */
print_histogram = 64 + port->nr;
}
}
static void saa7164_work_cmdhandler(struct work_struct *w)
{
struct saa7164_dev *dev = container_of(w, struct saa7164_dev, workcmd);
/* Wake up any complete commands */
saa7164_irq_dequeue(dev);
}
static void saa7164_buffer_deliver(struct saa7164_buffer *buf)
{
struct saa7164_port *port = buf->port;
/* Feed the transport payload into the kernel demux */
dvb_dmx_swfilter_packets(&port->dvb.demux, (u8 *)buf->cpu,
SAA7164_TS_NUMBER_OF_LINES);
}
static irqreturn_t saa7164_irq_vbi(struct saa7164_port *port)
{
struct saa7164_dev *dev = port->dev;
/* Store old time */
port->last_irq_msecs_diff = port->last_irq_msecs;
/* Collect new stats */
port->last_irq_msecs = jiffies_to_msecs(jiffies);
/* Calculate stats */
port->last_irq_msecs_diff = port->last_irq_msecs -
port->last_irq_msecs_diff;
saa7164_histogram_update(&port->irq_interval,
port->last_irq_msecs_diff);
dprintk(DBGLVL_IRQ, "%s() %Ldms elapsed\n", __func__,
port->last_irq_msecs_diff);
/* Tis calls the vbi irq handler */
schedule_work(&port->workenc);
return 0;
}
static irqreturn_t saa7164_irq_encoder(struct saa7164_port *port)
{
struct saa7164_dev *dev = port->dev;
/* Store old time */
port->last_irq_msecs_diff = port->last_irq_msecs;
/* Collect new stats */
port->last_irq_msecs = jiffies_to_msecs(jiffies);
/* Calculate stats */
port->last_irq_msecs_diff = port->last_irq_msecs -
port->last_irq_msecs_diff;
saa7164_histogram_update(&port->irq_interval,
port->last_irq_msecs_diff);
dprintk(DBGLVL_IRQ, "%s() %Ldms elapsed\n", __func__,
port->last_irq_msecs_diff);
schedule_work(&port->workenc);
return 0;
}
static irqreturn_t saa7164_irq_ts(struct saa7164_port *port)
{
struct saa7164_dev *dev = port->dev;
struct saa7164_buffer *buf;
struct list_head *c, *n;
int wp, i = 0, rp;
/* Find the current write point from the hardware */
wp = saa7164_readl(port->bufcounter);
BUG_ON(wp > (port->hwcfg.buffercount - 1));
/* Find the previous buffer to the current write point */
if (wp == 0)
rp = (port->hwcfg.buffercount - 1);
else
rp = wp - 1;
/* Lookup the WP in the buffer list */
/* TODO: turn this into a worker thread */
list_for_each_safe(c, n, &port->dmaqueue.list) {
buf = list_entry(c, struct saa7164_buffer, list);
BUG_ON(i > port->hwcfg.buffercount);
i++;
if (buf->idx == rp) {
/* Found the buffer, deal with it */
dprintk(DBGLVL_IRQ, "%s() wp: %d processing: %d\n",
__func__, wp, rp);
saa7164_buffer_deliver(buf);
break;
}
}
return 0;
}
/* Primary IRQ handler and dispatch mechanism */
static irqreturn_t saa7164_irq(int irq, void *dev_id)
{
struct saa7164_dev *dev = dev_id;
struct saa7164_port *porta, *portb, *portc, *portd, *porte, *portf;
u32 intid, intstat[INT_SIZE/4];
int i, handled = 0, bit;
if (dev == NULL) {
printk(KERN_ERR "%s() No device specified\n", __func__);
handled = 0;
goto out;
}
porta = &dev->ports[SAA7164_PORT_TS1];
portb = &dev->ports[SAA7164_PORT_TS2];
portc = &dev->ports[SAA7164_PORT_ENC1];
portd = &dev->ports[SAA7164_PORT_ENC2];
porte = &dev->ports[SAA7164_PORT_VBI1];
portf = &dev->ports[SAA7164_PORT_VBI2];
/* Check that the hardware is accessible. If the status bytes are
* 0xFF then the device is not accessible, the IRQ belongs
* to another driver.
* 4 x u32 interrupt registers.
*/
for (i = 0; i < INT_SIZE/4; i++) {
/* TODO: Convert into saa7164_readl() */
/* Read the 4 hardware interrupt registers */
intstat[i] = saa7164_readl(dev->int_status + (i * 4));
if (intstat[i])
handled = 1;
}
if (handled == 0)
goto out;
/* For each of the HW interrupt registers */
for (i = 0; i < INT_SIZE/4; i++) {
if (intstat[i]) {
/* Each function of the board has it's own interruptid.
* Find the function that triggered then call
* it's handler.
*/
for (bit = 0; bit < 32; bit++) {
if (((intstat[i] >> bit) & 0x00000001) == 0)
continue;
/* Calculate the interrupt id (0x00 to 0x7f) */
intid = (i * 32) + bit;
if (intid == dev->intfdesc.bInterruptId) {
/* A response to an cmd/api call */
schedule_work(&dev->workcmd);
} else if (intid == porta->hwcfg.interruptid) {
/* Transport path 1 */
saa7164_irq_ts(porta);
} else if (intid == portb->hwcfg.interruptid) {
/* Transport path 2 */
saa7164_irq_ts(portb);
} else if (intid == portc->hwcfg.interruptid) {
/* Encoder path 1 */
saa7164_irq_encoder(portc);
} else if (intid == portd->hwcfg.interruptid) {
/* Encoder path 2 */
saa7164_irq_encoder(portd);
} else if (intid == porte->hwcfg.interruptid) {
/* VBI path 1 */
saa7164_irq_vbi(porte);
} else if (intid == portf->hwcfg.interruptid) {
/* VBI path 2 */
saa7164_irq_vbi(portf);
} else {
/* Find the function */
dprintk(DBGLVL_IRQ,
"%s() unhandled interrupt reg 0x%x bit 0x%x intid = 0x%x\n",
__func__, i, bit, intid);
}
}
/* Ack it */
saa7164_writel(dev->int_ack + (i * 4), intstat[i]);
}
}
out:
return IRQ_RETVAL(handled);
}
void saa7164_getfirmwarestatus(struct saa7164_dev *dev)
{
struct saa7164_fw_status *s = &dev->fw_status;
dev->fw_status.status = saa7164_readl(SAA_DEVICE_SYSINIT_STATUS);
dev->fw_status.mode = saa7164_readl(SAA_DEVICE_SYSINIT_MODE);
dev->fw_status.spec = saa7164_readl(SAA_DEVICE_SYSINIT_SPEC);
dev->fw_status.inst = saa7164_readl(SAA_DEVICE_SYSINIT_INST);
dev->fw_status.cpuload = saa7164_readl(SAA_DEVICE_SYSINIT_CPULOAD);
dev->fw_status.remainheap =
saa7164_readl(SAA_DEVICE_SYSINIT_REMAINHEAP);
dprintk(1, "Firmware status:\n");
dprintk(1, " .status = 0x%08x\n", s->status);
dprintk(1, " .mode = 0x%08x\n", s->mode);
dprintk(1, " .spec = 0x%08x\n", s->spec);
dprintk(1, " .inst = 0x%08x\n", s->inst);
dprintk(1, " .cpuload = 0x%08x\n", s->cpuload);
dprintk(1, " .remainheap = 0x%08x\n", s->remainheap);
}
u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev)
{
u32 reg;
reg = saa7164_readl(SAA_DEVICE_VERSION);
dprintk(1, "Device running firmware version %d.%d.%d.%d (0x%x)\n",
(reg & 0x0000fc00) >> 10,
(reg & 0x000003e0) >> 5,
(reg & 0x0000001f),
(reg & 0xffff0000) >> 16,
reg);
return reg;
}
/* TODO: Debugging func, remove */
void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr)
{
int i;
dprintk(1, "--------------------> 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n");
for (i = 0; i < 0x100; i += 16)
dprintk(1, "region0[0x%08x] = %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
i,
(u8)saa7164_readb(addr + i + 0),
(u8)saa7164_readb(addr + i + 1),
(u8)saa7164_readb(addr + i + 2),
(u8)saa7164_readb(addr + i + 3),
(u8)saa7164_readb(addr + i + 4),
(u8)saa7164_readb(addr + i + 5),
(u8)saa7164_readb(addr + i + 6),
(u8)saa7164_readb(addr + i + 7),
(u8)saa7164_readb(addr + i + 8),
(u8)saa7164_readb(addr + i + 9),
(u8)saa7164_readb(addr + i + 10),
(u8)saa7164_readb(addr + i + 11),
(u8)saa7164_readb(addr + i + 12),
(u8)saa7164_readb(addr + i + 13),
(u8)saa7164_readb(addr + i + 14),
(u8)saa7164_readb(addr + i + 15)
);
}
static void saa7164_dump_hwdesc(struct saa7164_dev *dev)
{
dprintk(1, "@0x%p hwdesc sizeof(struct tmComResHWDescr) = %d bytes\n",
&dev->hwdesc, (u32)sizeof(struct tmComResHWDescr));
dprintk(1, " .bLength = 0x%x\n", dev->hwdesc.bLength);
dprintk(1, " .bDescriptorType = 0x%x\n", dev->hwdesc.bDescriptorType);
dprintk(1, " .bDescriptorSubtype = 0x%x\n",
dev->hwdesc.bDescriptorSubtype);
dprintk(1, " .bcdSpecVersion = 0x%x\n", dev->hwdesc.bcdSpecVersion);
dprintk(1, " .dwClockFrequency = 0x%x\n", dev->hwdesc.dwClockFrequency);
dprintk(1, " .dwClockUpdateRes = 0x%x\n", dev->hwdesc.dwClockUpdateRes);
dprintk(1, " .bCapabilities = 0x%x\n", dev->hwdesc.bCapabilities);
dprintk(1, " .dwDeviceRegistersLocation = 0x%x\n",
dev->hwdesc.dwDeviceRegistersLocation);
dprintk(1, " .dwHostMemoryRegion = 0x%x\n",
dev->hwdesc.dwHostMemoryRegion);
dprintk(1, " .dwHostMemoryRegionSize = 0x%x\n",
dev->hwdesc.dwHostMemoryRegionSize);
dprintk(1, " .dwHostHibernatMemRegion = 0x%x\n",
dev->hwdesc.dwHostHibernatMemRegion);
dprintk(1, " .dwHostHibernatMemRegionSize = 0x%x\n",
dev->hwdesc.dwHostHibernatMemRegionSize);
}
static void saa7164_dump_intfdesc(struct saa7164_dev *dev)
{
dprintk(1, "@0x%p intfdesc sizeof(struct tmComResInterfaceDescr) = %d bytes\n",
&dev->intfdesc, (u32)sizeof(struct tmComResInterfaceDescr));
dprintk(1, " .bLength = 0x%x\n", dev->intfdesc.bLength);
dprintk(1, " .bDescriptorType = 0x%x\n", dev->intfdesc.bDescriptorType);
dprintk(1, " .bDescriptorSubtype = 0x%x\n",
dev->intfdesc.bDescriptorSubtype);
dprintk(1, " .bFlags = 0x%x\n", dev->intfdesc.bFlags);
dprintk(1, " .bInterfaceType = 0x%x\n", dev->intfdesc.bInterfaceType);
dprintk(1, " .bInterfaceId = 0x%x\n", dev->intfdesc.bInterfaceId);
dprintk(1, " .bBaseInterface = 0x%x\n", dev->intfdesc.bBaseInterface);
dprintk(1, " .bInterruptId = 0x%x\n", dev->intfdesc.bInterruptId);
dprintk(1, " .bDebugInterruptId = 0x%x\n",
dev->intfdesc.bDebugInterruptId);
dprintk(1, " .BARLocation = 0x%x\n", dev->intfdesc.BARLocation);
}
static void saa7164_dump_busdesc(struct saa7164_dev *dev)
{
dprintk(1, "@0x%p busdesc sizeof(struct tmComResBusDescr) = %d bytes\n",
&dev->busdesc, (u32)sizeof(struct tmComResBusDescr));
dprintk(1, " .CommandRing = 0x%016Lx\n", dev->busdesc.CommandRing);
dprintk(1, " .ResponseRing = 0x%016Lx\n", dev->busdesc.ResponseRing);
dprintk(1, " .CommandWrite = 0x%x\n", dev->busdesc.CommandWrite);
dprintk(1, " .CommandRead = 0x%x\n", dev->busdesc.CommandRead);
dprintk(1, " .ResponseWrite = 0x%x\n", dev->busdesc.ResponseWrite);
dprintk(1, " .ResponseRead = 0x%x\n", dev->busdesc.ResponseRead);
}
/* Much of the hardware configuration and PCI registers are configured
* dynamically depending on firmware. We have to cache some initial
* structures then use these to locate other important structures
* from PCI space.
*/
static void saa7164_get_descriptors(struct saa7164_dev *dev)
{
memcpy_fromio(&dev->hwdesc, dev->bmmio, sizeof(struct tmComResHWDescr));
memcpy_fromio(&dev->intfdesc, dev->bmmio + sizeof(struct tmComResHWDescr),
sizeof(struct tmComResInterfaceDescr));
memcpy_fromio(&dev->busdesc, dev->bmmio + dev->intfdesc.BARLocation,
sizeof(struct tmComResBusDescr));
if (dev->hwdesc.bLength != sizeof(struct tmComResHWDescr)) {
printk(KERN_ERR "Structure struct tmComResHWDescr is mangled\n");
printk(KERN_ERR "Need %x got %d\n", dev->hwdesc.bLength,
(u32)sizeof(struct tmComResHWDescr));
} else
saa7164_dump_hwdesc(dev);
if (dev->intfdesc.bLength != sizeof(struct tmComResInterfaceDescr)) {
printk(KERN_ERR "struct struct tmComResInterfaceDescr is mangled\n");
printk(KERN_ERR "Need %x got %d\n", dev->intfdesc.bLength,
(u32)sizeof(struct tmComResInterfaceDescr));
} else
saa7164_dump_intfdesc(dev);
saa7164_dump_busdesc(dev);
}
static int saa7164_pci_quirks(struct saa7164_dev *dev)
{
return 0;
}
static int get_resources(struct saa7164_dev *dev)
{
if (request_mem_region(pci_resource_start(dev->pci, 0),
pci_resource_len(dev->pci, 0), dev->name)) {
if (request_mem_region(pci_resource_start(dev->pci, 2),
pci_resource_len(dev->pci, 2), dev->name))
return 0;
}
printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx or 0x%llx\n",
dev->name,
(u64)pci_resource_start(dev->pci, 0),
(u64)pci_resource_start(dev->pci, 2));
return -EBUSY;
}
static int saa7164_port_init(struct saa7164_dev *dev, int portnr)
{
struct saa7164_port *port = NULL;
BUG_ON((portnr < 0) || (portnr >= SAA7164_MAX_PORTS));
port = &dev->ports[portnr];
port->dev = dev;
port->nr = portnr;
if ((portnr == SAA7164_PORT_TS1) || (portnr == SAA7164_PORT_TS2))
port->type = SAA7164_MPEG_DVB;
else
if ((portnr == SAA7164_PORT_ENC1) || (portnr == SAA7164_PORT_ENC2)) {
port->type = SAA7164_MPEG_ENCODER;
/* We need a deferred interrupt handler for cmd handling */
INIT_WORK(&port->workenc, saa7164_work_enchandler);
} else if ((portnr == SAA7164_PORT_VBI1) || (portnr == SAA7164_PORT_VBI2)) {
port->type = SAA7164_MPEG_VBI;
/* We need a deferred interrupt handler for cmd handling */
INIT_WORK(&port->workenc, saa7164_work_vbihandler);
} else
BUG();
/* Init all the critical resources */
mutex_init(&port->dvb.lock);
INIT_LIST_HEAD(&port->dmaqueue.list);
mutex_init(&port->dmaqueue_lock);
INIT_LIST_HEAD(&port->list_buf_used.list);
INIT_LIST_HEAD(&port->list_buf_free.list);
init_waitqueue_head(&port->wait_read);
saa7164_histogram_reset(&port->irq_interval, "irq intervals");
saa7164_histogram_reset(&port->svc_interval, "deferred intervals");
saa7164_histogram_reset(&port->irq_svc_interval,
"irq to deferred intervals");
saa7164_histogram_reset(&port->read_interval,
"encoder/vbi read() intervals");
saa7164_histogram_reset(&port->poll_interval,
"encoder/vbi poll() intervals");
return 0;
}
static int saa7164_dev_setup(struct saa7164_dev *dev)
{
int i;
mutex_init(&dev->lock);
atomic_inc(&dev->refcount);
dev->nr = saa7164_devcount++;
snprintf(dev->name, sizeof(dev->name), "saa7164[%d]", dev->nr);
mutex_lock(&devlist);
list_add_tail(&dev->devlist, &saa7164_devlist);
mutex_unlock(&devlist);
/* board config */
dev->board = UNSET;
if (card[dev->nr] < saa7164_bcount)
dev->board = card[dev->nr];
for (i = 0; UNSET == dev->board && i < saa7164_idcount; i++)
if (dev->pci->subsystem_vendor == saa7164_subids[i].subvendor &&
dev->pci->subsystem_device ==
saa7164_subids[i].subdevice)
dev->board = saa7164_subids[i].card;
if (UNSET == dev->board) {
dev->board = SAA7164_BOARD_UNKNOWN;
saa7164_card_list(dev);
}
dev->pci_bus = dev->pci->bus->number;
dev->pci_slot = PCI_SLOT(dev->pci->devfn);
/* I2C Defaults / setup */
dev->i2c_bus[0].dev = dev;
dev->i2c_bus[0].nr = 0;
dev->i2c_bus[1].dev = dev;
dev->i2c_bus[1].nr = 1;
dev->i2c_bus[2].dev = dev;
dev->i2c_bus[2].nr = 2;
/* Transport + Encoder ports 1, 2, 3, 4 - Defaults / setup */
saa7164_port_init(dev, SAA7164_PORT_TS1);
saa7164_port_init(dev, SAA7164_PORT_TS2);
saa7164_port_init(dev, SAA7164_PORT_ENC1);
saa7164_port_init(dev, SAA7164_PORT_ENC2);
saa7164_port_init(dev, SAA7164_PORT_VBI1);
saa7164_port_init(dev, SAA7164_PORT_VBI2);
if (get_resources(dev) < 0) {
printk(KERN_ERR "CORE %s No more PCIe resources for subsystem: %04x:%04x\n",
dev->name, dev->pci->subsystem_vendor,
dev->pci->subsystem_device);
saa7164_devcount--;
return -ENODEV;
}
/* PCI/e allocations */
dev->lmmio = ioremap(pci_resource_start(dev->pci, 0),
pci_resource_len(dev->pci, 0));
dev->lmmio2 = ioremap(pci_resource_start(dev->pci, 2),
pci_resource_len(dev->pci, 2));
dev->bmmio = (u8 __iomem *)dev->lmmio;
dev->bmmio2 = (u8 __iomem *)dev->lmmio2;
/* Interrupt and ack register locations offset of bmmio */
dev->int_status = 0x183000 + 0xf80;
dev->int_ack = 0x183000 + 0xf90;
printk(KERN_INFO
"CORE %s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
dev->name, dev->pci->subsystem_vendor,
dev->pci->subsystem_device, saa7164_boards[dev->board].name,
dev->board, card[dev->nr] == dev->board ?
"insmod option" : "autodetected");
saa7164_pci_quirks(dev);
return 0;
}
static void saa7164_dev_unregister(struct saa7164_dev *dev)
{
dprintk(1, "%s()\n", __func__);
release_mem_region(pci_resource_start(dev->pci, 0),
pci_resource_len(dev->pci, 0));
release_mem_region(pci_resource_start(dev->pci, 2),
pci_resource_len(dev->pci, 2));
if (!atomic_dec_and_test(&dev->refcount))
return;
iounmap(dev->lmmio);
iounmap(dev->lmmio2);
return;
}
#ifdef CONFIG_DEBUG_FS
static void *saa7164_seq_start(struct seq_file *s, loff_t *pos)
{
struct saa7164_dev *dev;
loff_t index = *pos;
mutex_lock(&devlist);
list_for_each_entry(dev, &saa7164_devlist, devlist) {
if (index-- == 0) {
mutex_unlock(&devlist);
return dev;
}
}
mutex_unlock(&devlist);
return NULL;
}
static void *saa7164_seq_next(struct seq_file *s, void *v, loff_t *pos)
{
struct saa7164_dev *dev = v;
void *ret;
mutex_lock(&devlist);
if (list_is_last(&dev->devlist, &saa7164_devlist))
ret = NULL;
else
ret = list_next_entry(dev, devlist);
mutex_unlock(&devlist);
++*pos;
return ret;
}
static void saa7164_seq_stop(struct seq_file *s, void *v)
{
}
static int saa7164_seq_show(struct seq_file *m, void *v)
{
struct saa7164_dev *dev = v;
struct tmComResBusInfo *b;
int i, c;
seq_printf(m, "%s = %p\n", dev->name, dev);
/* Lock the bus from any other access */
b = &dev->bus;
mutex_lock(&b->lock);
seq_printf(m, " .m_pdwSetWritePos = 0x%x (0x%08x)\n",
b->m_dwSetReadPos, saa7164_readl(b->m_dwSetReadPos));
seq_printf(m, " .m_pdwSetReadPos = 0x%x (0x%08x)\n",
b->m_dwSetWritePos, saa7164_readl(b->m_dwSetWritePos));
seq_printf(m, " .m_pdwGetWritePos = 0x%x (0x%08x)\n",
b->m_dwGetReadPos, saa7164_readl(b->m_dwGetReadPos));
seq_printf(m, " .m_pdwGetReadPos = 0x%x (0x%08x)\n",
b->m_dwGetWritePos, saa7164_readl(b->m_dwGetWritePos));
c = 0;
seq_puts(m, "\n Set Ring:\n");
seq_puts(m, "\n addr 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n");
for (i = 0; i < b->m_dwSizeSetRing; i++) {
if (c == 0)
seq_printf(m, " %04x:", i);
seq_printf(m, " %02x", readb(b->m_pdwSetRing + i));
if (++c == 16) {
seq_puts(m, "\n");
c = 0;
}
}
c = 0;
seq_puts(m, "\n Get Ring:\n");
seq_puts(m, "\n addr 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n");
for (i = 0; i < b->m_dwSizeGetRing; i++) {
if (c == 0)
seq_printf(m, " %04x:", i);
seq_printf(m, " %02x", readb(b->m_pdwGetRing + i));
if (++c == 16) {
seq_puts(m, "\n");
c = 0;
}
}
mutex_unlock(&b->lock);
return 0;
}
static const struct seq_operations saa7164_sops = {
.start = saa7164_seq_start,
.next = saa7164_seq_next,
.stop = saa7164_seq_stop,
.show = saa7164_seq_show,
};
DEFINE_SEQ_ATTRIBUTE(saa7164);
static struct dentry *saa7614_dentry;
static void __init saa7164_debugfs_create(void)
{
saa7614_dentry = debugfs_create_file("saa7164", 0444, NULL, NULL,
&saa7164_fops);
}
static void __exit saa7164_debugfs_remove(void)
{
debugfs_remove(saa7614_dentry);
}
#else
static void saa7164_debugfs_create(void) { }
static void saa7164_debugfs_remove(void) { }
#endif
static int saa7164_thread_function(void *data)
{
struct saa7164_dev *dev = data;
struct tmFwInfoStruct fwinfo;
u64 last_poll_time = 0;
dprintk(DBGLVL_THR, "thread started\n");
set_freezable();
while (1) {
msleep_interruptible(100);
if (kthread_should_stop())
break;
try_to_freeze();
dprintk(DBGLVL_THR, "thread running\n");
/* Dump the firmware debug message to console */
/* Polling this costs us 1-2% of the arm CPU */
/* convert this into a respnde to interrupt 0x7a */
saa7164_api_collect_debug(dev);
/* Monitor CPU load every 1 second */
if ((last_poll_time + 1000 /* ms */) < jiffies_to_msecs(jiffies)) {
saa7164_api_get_load_info(dev, &fwinfo);
last_poll_time = jiffies_to_msecs(jiffies);
}
}
dprintk(DBGLVL_THR, "thread exiting\n");
return 0;
}
static bool saa7164_enable_msi(struct pci_dev *pci_dev, struct saa7164_dev *dev)
{
int err;
if (!enable_msi) {
printk(KERN_WARNING "%s() MSI disabled by module parameter 'enable_msi'"
, __func__);
return false;
}
err = pci_enable_msi(pci_dev);
if (err) {
printk(KERN_ERR "%s() Failed to enable MSI interrupt. Falling back to a shared IRQ\n",
__func__);
return false;
}
/* no error - so request an msi interrupt */
err = request_irq(pci_dev->irq, saa7164_irq, 0,
dev->name, dev);
if (err) {
/* fall back to legacy interrupt */
printk(KERN_ERR "%s() Failed to get an MSI interrupt. Falling back to a shared IRQ\n",
__func__);
pci_disable_msi(pci_dev);
return false;
}
return true;
}
static int saa7164_initdev(struct pci_dev *pci_dev,
const struct pci_device_id *pci_id)
{
struct saa7164_dev *dev;
int err, i;
u32 version;
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (NULL == dev)
return -ENOMEM;
err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
if (err < 0) {
dev_err(&pci_dev->dev, "v4l2_device_register failed\n");
goto fail_free;
}
/* pci init */
dev->pci = pci_dev;
if (pci_enable_device(pci_dev)) {
err = -EIO;
goto fail_free;
}
if (saa7164_dev_setup(dev) < 0) {
err = -EINVAL;
goto fail_dev;
}
/* print pci info */
dev->pci_rev = pci_dev->revision;
pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
printk(KERN_INFO "%s/0: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
dev->name,
pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
dev->pci_lat,
(unsigned long long)pci_resource_start(pci_dev, 0));
pci_set_master(pci_dev);
/* TODO */
err = dma_set_mask(&pci_dev->dev, 0xffffffff);
if (err) {
printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
goto fail_irq;
}
/* irq bit */
if (saa7164_enable_msi(pci_dev, dev)) {
dev->msi = true;
} else {
/* if we have an error (i.e. we don't have an interrupt)
or msi is not enabled - fallback to shared interrupt */
err = request_irq(pci_dev->irq, saa7164_irq,
IRQF_SHARED, dev->name, dev);
if (err < 0) {
printk(KERN_ERR "%s: can't get IRQ %d\n", dev->name,
pci_dev->irq);
err = -EIO;
goto fail_irq;
}
}
pci_set_drvdata(pci_dev, dev);
/* Init the internal command list */
for (i = 0; i < SAA_CMD_MAX_MSG_UNITS; i++) {
dev->cmds[i].seqno = i;
dev->cmds[i].inuse = 0;
mutex_init(&dev->cmds[i].lock);
init_waitqueue_head(&dev->cmds[i].wait);
}
/* We need a deferred interrupt handler for cmd handling */
INIT_WORK(&dev->workcmd, saa7164_work_cmdhandler);
/* Only load the firmware if we know the board */
if (dev->board != SAA7164_BOARD_UNKNOWN) {
err = saa7164_downloadfirmware(dev);
if (err < 0) {
printk(KERN_ERR
"Failed to boot firmware, no features registered\n");
goto fail_fw;
}
saa7164_get_descriptors(dev);
saa7164_dumpregs(dev, 0);
saa7164_getcurrentfirmwareversion(dev);
saa7164_getfirmwarestatus(dev);
err = saa7164_bus_setup(dev);
if (err < 0)
printk(KERN_ERR
"Failed to setup the bus, will continue\n");
saa7164_bus_dump(dev);
/* Ping the running firmware via the command bus and get the
* firmware version, this checks the bus is running OK.
*/
version = 0;
if (saa7164_api_get_fw_version(dev, &version) == SAA_OK)
dprintk(1, "Bus is operating correctly using version %d.%d.%d.%d (0x%x)\n",
(version & 0x0000fc00) >> 10,
(version & 0x000003e0) >> 5,
(version & 0x0000001f),
(version & 0xffff0000) >> 16,
version);
else
printk(KERN_ERR
"Failed to communicate with the firmware\n");
/* Bring up the I2C buses */
saa7164_i2c_register(&dev->i2c_bus[0]);
saa7164_i2c_register(&dev->i2c_bus[1]);
saa7164_i2c_register(&dev->i2c_bus[2]);
saa7164_gpio_setup(dev);
saa7164_card_setup(dev);
/* Parse the dynamic device configuration, find various
* media endpoints (MPEG, WMV, PS, TS) and cache their
* configuration details into the driver, so we can
* reference them later during simething_register() func,
* interrupt handlers, deferred work handlers etc.
*/
saa7164_api_enum_subdevs(dev);
/* Begin to create the video sub-systems and register funcs */
if (saa7164_boards[dev->board].porta == SAA7164_MPEG_DVB) {
if (saa7164_dvb_register(&dev->ports[SAA7164_PORT_TS1]) < 0) {
printk(KERN_ERR "%s() Failed to register dvb adapters on porta\n",
__func__);
}
}
if (saa7164_boards[dev->board].portb == SAA7164_MPEG_DVB) {
if (saa7164_dvb_register(&dev->ports[SAA7164_PORT_TS2]) < 0) {
printk(KERN_ERR"%s() Failed to register dvb adapters on portb\n",
__func__);
}
}
if (saa7164_boards[dev->board].portc == SAA7164_MPEG_ENCODER) {
if (saa7164_encoder_register(&dev->ports[SAA7164_PORT_ENC1]) < 0) {
printk(KERN_ERR"%s() Failed to register mpeg encoder\n",
__func__);
}
}
if (saa7164_boards[dev->board].portd == SAA7164_MPEG_ENCODER) {
if (saa7164_encoder_register(&dev->ports[SAA7164_PORT_ENC2]) < 0) {
printk(KERN_ERR"%s() Failed to register mpeg encoder\n",
__func__);
}
}
if (saa7164_boards[dev->board].porte == SAA7164_MPEG_VBI) {
if (saa7164_vbi_register(&dev->ports[SAA7164_PORT_VBI1]) < 0) {
printk(KERN_ERR"%s() Failed to register vbi device\n",
__func__);
}
}
if (saa7164_boards[dev->board].portf == SAA7164_MPEG_VBI) {
if (saa7164_vbi_register(&dev->ports[SAA7164_PORT_VBI2]) < 0) {
printk(KERN_ERR"%s() Failed to register vbi device\n",
__func__);
}
}
saa7164_api_set_debug(dev, fw_debug);
if (fw_debug) {
dev->kthread = kthread_run(saa7164_thread_function, dev,
"saa7164 debug");
if (IS_ERR(dev->kthread)) {
dev->kthread = NULL;
printk(KERN_ERR "%s() Failed to create debug kernel thread\n",
__func__);
}
}
} /* != BOARD_UNKNOWN */
else
printk(KERN_ERR "%s() Unsupported board detected, registering without firmware\n",
__func__);
dprintk(1, "%s() parameter debug = %d\n", __func__, saa_debug);
dprintk(1, "%s() parameter waitsecs = %d\n", __func__, waitsecs);
fail_fw:
return 0;
fail_irq:
saa7164_dev_unregister(dev);
fail_dev:
pci_disable_device(pci_dev);
fail_free:
v4l2_device_unregister(&dev->v4l2_dev);
kfree(dev);
return err;
}
static void saa7164_shutdown(struct saa7164_dev *dev)
{
dprintk(1, "%s()\n", __func__);
}
static void saa7164_finidev(struct pci_dev *pci_dev)
{
struct saa7164_dev *dev = pci_get_drvdata(pci_dev);
if (dev->board != SAA7164_BOARD_UNKNOWN) {
if (fw_debug && dev->kthread) {
kthread_stop(dev->kthread);
dev->kthread = NULL;
}
if (dev->firmwareloaded)
saa7164_api_set_debug(dev, 0x00);
}
saa7164_histogram_print(&dev->ports[SAA7164_PORT_ENC1],
&dev->ports[SAA7164_PORT_ENC1].irq_interval);
saa7164_histogram_print(&dev->ports[SAA7164_PORT_ENC1],
&dev->ports[SAA7164_PORT_ENC1].svc_interval);
saa7164_histogram_print(&dev->ports[SAA7164_PORT_ENC1],
&dev->ports[SAA7164_PORT_ENC1].irq_svc_interval);
saa7164_histogram_print(&dev->ports[SAA7164_PORT_ENC1],
&dev->ports[SAA7164_PORT_ENC1].read_interval);
saa7164_histogram_print(&dev->ports[SAA7164_PORT_ENC1],
&dev->ports[SAA7164_PORT_ENC1].poll_interval);
saa7164_histogram_print(&dev->ports[SAA7164_PORT_VBI1],
&dev->ports[SAA7164_PORT_VBI1].read_interval);
saa7164_histogram_print(&dev->ports[SAA7164_PORT_VBI2],
&dev->ports[SAA7164_PORT_VBI2].poll_interval);
saa7164_shutdown(dev);
if (saa7164_boards[dev->board].porta == SAA7164_MPEG_DVB)
saa7164_dvb_unregister(&dev->ports[SAA7164_PORT_TS1]);
if (saa7164_boards[dev->board].portb == SAA7164_MPEG_DVB)
saa7164_dvb_unregister(&dev->ports[SAA7164_PORT_TS2]);
if (saa7164_boards[dev->board].portc == SAA7164_MPEG_ENCODER)
saa7164_encoder_unregister(&dev->ports[SAA7164_PORT_ENC1]);
if (saa7164_boards[dev->board].portd == SAA7164_MPEG_ENCODER)
saa7164_encoder_unregister(&dev->ports[SAA7164_PORT_ENC2]);
if (saa7164_boards[dev->board].porte == SAA7164_MPEG_VBI)
saa7164_vbi_unregister(&dev->ports[SAA7164_PORT_VBI1]);
if (saa7164_boards[dev->board].portf == SAA7164_MPEG_VBI)
saa7164_vbi_unregister(&dev->ports[SAA7164_PORT_VBI2]);
saa7164_i2c_unregister(&dev->i2c_bus[0]);
saa7164_i2c_unregister(&dev->i2c_bus[1]);
saa7164_i2c_unregister(&dev->i2c_bus[2]);
/* unregister stuff */
free_irq(pci_dev->irq, dev);
if (dev->msi) {
pci_disable_msi(pci_dev);
dev->msi = false;
}
pci_disable_device(pci_dev);
mutex_lock(&devlist);
list_del(&dev->devlist);
mutex_unlock(&devlist);
saa7164_dev_unregister(dev);
v4l2_device_unregister(&dev->v4l2_dev);
kfree(dev);
}
static const struct pci_device_id saa7164_pci_tbl[] = {
{
/* SAA7164 */
.vendor = 0x1131,
.device = 0x7164,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
}, {
/* --- end of list --- */
}
};
MODULE_DEVICE_TABLE(pci, saa7164_pci_tbl);
static struct pci_driver saa7164_pci_driver = {
.name = "saa7164",
.id_table = saa7164_pci_tbl,
.probe = saa7164_initdev,
.remove = saa7164_finidev,
};
static int __init saa7164_init(void)
{
int ret = pci_register_driver(&saa7164_pci_driver);
if (ret)
return ret;
saa7164_debugfs_create();
pr_info("saa7164 driver loaded\n");
return 0;
}
static void __exit saa7164_fini(void)
{
saa7164_debugfs_remove();
pci_unregister_driver(&saa7164_pci_driver);
}
module_init(saa7164_init);
module_exit(saa7164_fini);
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