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yaml
---
r: 26910
b: refs/heads/master
c: 7d16eaa
h: refs/heads/master
v: v3
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Hans Verkuil authored and Mauro Carvalho Chehab committed May 12, 2006
1 parent 9e06e8e commit 3377b84
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Showing 2 changed files with 3 additions and 48 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 5691c8473936508c51639b6ff8467e55d8b129c1
refs/heads/master: 7d16eaa3d0d41a6e871e5c82720bcd006b202d55
49 changes: 2 additions & 47 deletions trunk/drivers/media/video/cx25840/cx25840-firmware.c
Original file line number Diff line number Diff line change
Expand Up @@ -39,29 +39,12 @@

#define FWDEV(x) &((x)->adapter->dev)

static int fastfw = 1;
static char *firmware = FWFILE;

module_param(fastfw, bool, 0444);
module_param(firmware, charp, 0444);

MODULE_PARM_DESC(fastfw, "Load firmware fast [0=100MHz 1=333MHz (default)]");
MODULE_PARM_DESC(firmware, "Firmware image [default: " FWFILE "]");

static void set_i2c_delay(struct i2c_client *client, int delay)
{
struct i2c_algo_bit_data *algod = client->adapter->algo_data;

/* We aren't guaranteed to be using algo_bit,
* so avoid the null pointer dereference
* and disable the 'fast firmware load' */
if (algod) {
algod->udelay = delay;
} else {
fastfw = 0;
}
}

static void start_fw_load(struct i2c_client *client)
{
/* DL_ADDR_LB=0 DL_ADDR_HB=0 */
Expand All @@ -71,16 +54,10 @@ static void start_fw_load(struct i2c_client *client)
cx25840_write(client, 0x803, 0x0b);
/* AUTO_INC_DIS=1 */
cx25840_write(client, 0x000, 0x20);

if (fastfw)
set_i2c_delay(client, 3);
}

static void end_fw_load(struct i2c_client *client)
{
if (fastfw)
set_i2c_delay(client, 10);

/* AUTO_INC_DIS=0 */
cx25840_write(client, 0x000, 0x00);
/* DL_ENABLE=0 */
Expand All @@ -107,30 +84,8 @@ static int fw_write(struct i2c_client *client, u8 * data, int size)
int sent;

if ((sent = i2c_master_send(client, data, size)) < size) {

if (fastfw) {
v4l_err(client, "333MHz i2c firmware load failed\n");
fastfw = 0;
set_i2c_delay(client, 10);

if (sent > 2) {
u16 dl_addr = cx25840_read(client, 0x801) << 8;
dl_addr |= cx25840_read(client, 0x800);
dl_addr -= sent - 2;
cx25840_write(client, 0x801, dl_addr >> 8);
cx25840_write(client, 0x800, dl_addr & 0xff);
}

if (i2c_master_send(client, data, size) < size) {
v4l_err(client, "100MHz i2c firmware load failed\n");
return -ENOSYS;
}

} else {
v4l_err(client, "firmware load i2c failure\n");
return -ENOSYS;
}

v4l_err(client, "firmware load i2c failure\n");
return -ENOSYS;
}

return 0;
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