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V4L/DVB (5478): Use ARRAY_SIZE and a cleaner logic for initializing tuner 

ATI HDTV Wonder needs to initialize some registers before allowing the
tuner to start working.
The current logic have lots of magic. This patch makes the code cleaner,
using ARRAY_SIZE() for the initialization array and using a
bidimensional array, instead of doing some stuff like:
	&buffer[i+2]

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab 2007-03-28 22:37:26 -03:00
parent c1d570385b
commit 5b9c4e6dbb
1 changed files with 14 additions and 5 deletions
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19
drivers/media/video/cx88/cx88-cards.c
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@ -1790,7 +1790,7 @@ static void dvico_fusionhdtv_hybrid_init(struct cx88_core *core)
{ 0x03, 0x0C },
};
for (i = 0; i < 13; i++) {
for (i = 0; i < ARRAY_SIZE(init_bufs); i++) {
msg.buf = init_bufs[i];
msg.len = (i != 12 ? 5 : 2);
err = i2c_transfer(&core->i2c_adap, &msg, 1);
@ -1917,12 +1917,21 @@ void cx88_card_setup(struct cx88_core *core)
if (0 == core->i2c_rc) {
/* enable tuner */
int i;
static const u8 buffer [] = { 0x10,0x12,0x13,0x04,0x16,0x00,0x14,0x04,0x017,0x00 };
static const u8 buffer [][2] = {
{0x10,0x12},
{0x13,0x04},
{0x16,0x00},
{0x14,0x04},
{0x17,0x00}
};
core->i2c_client.addr = 0x0a;
for (i = 0; i < 5; i++)
if (2 != i2c_master_send(&core->i2c_client,&buffer[i*2],2))
printk(KERN_WARNING "%s: Unable to enable tuner(%i).\n",
for (i = 0; i < ARRAY_SIZE(buffer); i++)
if (2 != i2c_master_send(&core->i2c_client,
buffer[i],2))
printk(KERN_WARNING
"%s: Unable to enable "
"tuner(%i).\n",
core->name, i);
}
break;