mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-13 22:25:03 +00:00
Code Issues Releases Wiki Activity

[media] smiapp: Allow generic quirk registers

Browse source 
Implement more generic quirk registers than just limit and capability
registers. This comes with the expense of a little bit more access time so
these should be only used when really needed.

Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sakari Ailus 2012-04-26 13:39:44 -03:00 committed by Mauro Carvalho Chehab
parent 3de886e0e4
commit 27b2e76dbc
3 changed files with 60 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

46
drivers/media/video/smiapp/smiapp-quirk.c
View file

@ -81,6 +81,52 @@ int smiapp_replace_limit_at(struct smiapp_sensor *sensor,
return -EINVAL;
}
bool smiapp_quirk_reg(struct smiapp_sensor *sensor,
u32 reg, u32 *val)
{
struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
const struct smia_reg *sreg;
if (!sensor->minfo.quirk)
return false;
sreg = sensor->minfo.quirk->regs;
if (!sreg)
return false;
while (sreg->type) {
u16 type = reg >> 16;
u16 reg16 = reg;
if (sreg->type != type || sreg->reg != reg16) {
sreg++;
continue;
}
switch ((u8)type) {
case SMIA_REG_8BIT:
dev_dbg(&client->dev, "quirk: 0x%8.8x: 0x%2.2x\n",
reg, sreg->val);
break;
case SMIA_REG_16BIT:
dev_dbg(&client->dev, "quirk: 0x%8.8x: 0x%4.4x\n",
reg, sreg->val);
break;
case SMIA_REG_32BIT:
dev_dbg(&client->dev, "quirk: 0x%8.8x: 0x%8.8x\n",
reg, sreg->val);
break;
}
*val = sreg->val;
return true;
}
return false;
}
static int jt8ew9_limits(struct smiapp_sensor *sensor)
{
if (sensor->minfo.revision_number_major < 0x03)

10
drivers/media/video/smiapp/smiapp-quirk.h
View file

@ -41,6 +41,7 @@ struct smiapp_quirk {
int (*post_poweron)(struct smiapp_sensor *sensor);
int (*pre_streamon)(struct smiapp_sensor *sensor);
int (*post_streamoff)(struct smiapp_sensor *sensor);
const struct smia_reg *regs;
unsigned long flags;
};
@ -55,6 +56,15 @@ struct smiapp_reg_8 {
void smiapp_replace_limit(struct smiapp_sensor *sensor,
u32 limit, u32 val);
bool smiapp_quirk_reg(struct smiapp_sensor *sensor,
u32 reg, u32 *val);
#define SMIAPP_MK_QUIRK_REG(_reg, _val) \
{ \
.type = (_reg >> 16), \
.reg = (u16)_reg, \
.val = _val, \
}
#define smiapp_call_quirk(_sensor, _quirk, ...) \
(_sensor->minfo.quirk && \

4
drivers/media/video/smiapp/smiapp-regs.c
View file

@ -172,6 +172,9 @@ static int __smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val,
&& len != SMIA_REG_32BIT)
return -EINVAL;
if (smiapp_quirk_reg(sensor, reg, val))
goto found_quirk;
if (len == SMIA_REG_8BIT && !only8)
rval = ____smiapp_read(sensor, (u16)reg, len, val);
else
@ -179,6 +182,7 @@ static int __smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val,
if (rval < 0)
return rval;
found_quirk:
if (reg & SMIA_REG_FLAG_FLOAT)
*val = float_to_u32_mul_1000000(client, *val);