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| author | Alex Deucher <alexdeucher@gmail.com> | 2009-12-23 11:23:21 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-02-09 02:31:10 +0300 |
| commit | 40bacf1631a3e8654b1128aa9b72e73ca801c9e4 (patch) | |
| tree | 9d4dc63b4dfb124203335dd4e541c657417960ce /drivers/gpu/drm/radeon/radeon_reg.h | |
| parent | 5a6f98f5bff7f975c61d56b5c756b5a96c4db167 (diff) | |
| download | linux-40bacf1631a3e8654b1128aa9b72e73ca801c9e4.tar.xz | |
drm/radeon/kms: add support for hw i2c on r1xx-r5xx
wire hw i2c support into radeon i2c algo.
fixes merged:
- handle bus probing correctly
- use meaningful error numbers
- abort if transaction fails
- The line mapping is different depending on the asic.
- protect hw i2c engine with a mutex
- rs300 doesn't have a pin select bit
- r200 has a different pin select setup
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_reg.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_reg.h | 48 |
1 files changed, 27 insertions, 21 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_reg.h b/drivers/gpu/drm/radeon/radeon_reg.h index 6d0a009dd4a1..b4a06676fff6 100644 --- a/drivers/gpu/drm/radeon/radeon_reg.h +++ b/drivers/gpu/drm/radeon/radeon_reg.h @@ -1060,32 +1060,38 @@ /* Multimedia I2C bus */ #define RADEON_I2C_CNTL_0 0x0090 -#define RADEON_I2C_DONE (1 << 0) -#define RADEON_I2C_NACK (1 << 1) -#define RADEON_I2C_HALT (1 << 2) -#define RADEON_I2C_SOFT_RST (1 << 5) -#define RADEON_I2C_DRIVE_EN (1 << 6) -#define RADEON_I2C_DRIVE_SEL (1 << 7) -#define RADEON_I2C_START (1 << 8) -#define RADEON_I2C_STOP (1 << 9) -#define RADEON_I2C_RECEIVE (1 << 10) -#define RADEON_I2C_ABORT (1 << 11) -#define RADEON_I2C_GO (1 << 12) -#define RADEON_I2C_PRESCALE_SHIFT 16 +# define RADEON_I2C_DONE (1 << 0) +# define RADEON_I2C_NACK (1 << 1) +# define RADEON_I2C_HALT (1 << 2) +# define RADEON_I2C_SOFT_RST (1 << 5) +# define RADEON_I2C_DRIVE_EN (1 << 6) +# define RADEON_I2C_DRIVE_SEL (1 << 7) +# define RADEON_I2C_START (1 << 8) +# define RADEON_I2C_STOP (1 << 9) +# define RADEON_I2C_RECEIVE (1 << 10) +# define RADEON_I2C_ABORT (1 << 11) +# define RADEON_I2C_GO (1 << 12) +# define RADEON_I2C_PRESCALE_SHIFT 16 #define RADEON_I2C_CNTL_1 0x0094 -#define RADEON_I2C_DATA_COUNT_SHIFT 0 -#define RADEON_I2C_ADDR_COUNT_SHIFT 4 -#define RADEON_I2C_INTRA_BYTE_DELAY_SHIFT 8 -#define RADEON_I2C_SEL (1 << 16) -#define RADEON_I2C_EN (1 << 17) -#define RADEON_I2C_TIME_LIMIT_SHIFT 24 +# define RADEON_I2C_DATA_COUNT_SHIFT 0 +# define RADEON_I2C_ADDR_COUNT_SHIFT 4 +# define RADEON_I2C_INTRA_BYTE_DELAY_SHIFT 8 +# define RADEON_I2C_SEL (1 << 16) +# define RADEON_I2C_EN (1 << 17) +# define RADEON_I2C_TIME_LIMIT_SHIFT 24 #define RADEON_I2C_DATA 0x0098 #define RADEON_DVI_I2C_CNTL_0 0x02e0 # define R200_DVI_I2C_PIN_SEL(x) ((x) << 3) -# define R200_SEL_DDC1 0 /* 0x60 - VGA_DDC */ -# define R200_SEL_DDC2 1 /* 0x64 - DVI_DDC */ -# define R200_SEL_DDC3 2 /* 0x68 - MONID_DDC */ +# define R200_SEL_DDC1 0 /* depends on asic */ +# define R200_SEL_DDC2 1 /* depends on asic */ +# define R200_SEL_DDC3 2 /* depends on asic */ +# define RADEON_SW_WANTS_TO_USE_DVI_I2C (1 << 13) +# define RADEON_SW_CAN_USE_DVI_I2C (1 << 13) +# define RADEON_SW_DONE_USING_DVI_I2C (1 << 14) +# define RADEON_HW_NEEDS_DVI_I2C (1 << 14) +# define RADEON_ABORT_HW_DVI_I2C (1 << 15) +# define RADEON_HW_USING_DVI_I2C (1 << 15) #define RADEON_DVI_I2C_CNTL_1 0x02e4 #define RADEON_DVI_I2C_DATA 0x02e8 |