diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-av-core.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-av-core.c | 73 |
1 files changed, 64 insertions, 9 deletions
diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c index 9a26751615c..faca43eb940 100644 --- a/drivers/media/video/cx18/cx18-av-core.c +++ b/drivers/media/video/cx18/cx18-av-core.c @@ -69,6 +69,58 @@ int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 and_mask, or_value); } +int cx18_av_write_no_acfg(struct cx18 *cx, u16 addr, u8 value, int no_acfg_mask) +{ + int retval; + u32 saved_reg[8] = {0}; + + if (no_acfg_mask & CXADEC_NO_ACFG_AFE) { + saved_reg[0] = cx18_av_read4(cx, CXADEC_CHIP_CTRL); + saved_reg[1] = cx18_av_read4(cx, CXADEC_AFE_CTRL); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_PLL) { + saved_reg[2] = cx18_av_read4(cx, CXADEC_PLL_CTRL1); + saved_reg[3] = cx18_av_read4(cx, CXADEC_VID_PLL_FRAC); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_VID) { + saved_reg[4] = cx18_av_read4(cx, CXADEC_HORIZ_TIM_CTRL); + saved_reg[5] = cx18_av_read4(cx, CXADEC_VERT_TIM_CTRL); + saved_reg[6] = cx18_av_read4(cx, CXADEC_SRC_COMB_CFG); + saved_reg[7] = cx18_av_read4(cx, CXADEC_CHROMA_VBIOFF_CFG); + } + + retval = cx18_av_write(cx, addr, value); + + if (no_acfg_mask & CXADEC_NO_ACFG_AFE) { + cx18_av_write4(cx, CXADEC_CHIP_CTRL, saved_reg[0]); + cx18_av_write4(cx, CXADEC_AFE_CTRL, saved_reg[1]); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_PLL) { + cx18_av_write4(cx, CXADEC_PLL_CTRL1, saved_reg[2]); + cx18_av_write4(cx, CXADEC_VID_PLL_FRAC, saved_reg[3]); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_VID) { + cx18_av_write4(cx, CXADEC_HORIZ_TIM_CTRL, saved_reg[4]); + cx18_av_write4(cx, CXADEC_VERT_TIM_CTRL, saved_reg[5]); + cx18_av_write4(cx, CXADEC_SRC_COMB_CFG, saved_reg[6]); + cx18_av_write4(cx, CXADEC_CHROMA_VBIOFF_CFG, saved_reg[7]); + } + + return retval; +} + +int cx18_av_and_or_no_acfg(struct cx18 *cx, u16 addr, unsigned and_mask, + u8 or_value, int no_acfg_mask) +{ + return cx18_av_write_no_acfg(cx, addr, + (cx18_av_read(cx, addr) & and_mask) | + or_value, no_acfg_mask); +} + /* ----------------------------------------------------------------------- */ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, @@ -170,13 +222,15 @@ static void input_change(struct cx18 *cx) /* Follow step 8c and 8d of section 3.16 in the cx18_av datasheet */ if (std & V4L2_STD_SECAM) - cx18_av_write(cx, 0x402, 0); + cx18_av_write_no_acfg(cx, 0x402, 0, CXADEC_NO_ACFG_ALL); else { - cx18_av_write(cx, 0x402, 0x04); + cx18_av_write_no_acfg(cx, 0x402, 0x04, CXADEC_NO_ACFG_ALL); cx18_av_write(cx, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11); } - cx18_av_and_or(cx, 0x401, ~0x60, 0); - cx18_av_and_or(cx, 0x401, ~0x60, 0x60); + cx18_av_and_or_no_acfg(cx, 0x401, ~0x60, 0, + CXADEC_NO_ACFG_PLL | CXADEC_NO_ACFG_VID); + cx18_av_and_or_no_acfg(cx, 0x401, ~0x60, 0x60, + CXADEC_NO_ACFG_PLL | CXADEC_NO_ACFG_VID); if (std & V4L2_STD_525_60) { if (std == V4L2_STD_NTSC_M_JP) { @@ -228,7 +282,7 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, if ((vid_input & ~0xff0) || luma < CX18_AV_SVIDEO_LUMA1 || - luma > CX18_AV_SVIDEO_LUMA4 || + luma > CX18_AV_SVIDEO_LUMA8 || chroma < CX18_AV_SVIDEO_CHROMA4 || chroma > CX18_AV_SVIDEO_CHROMA8) { CX18_ERR("0x%04x is not a valid video input!\n", @@ -262,7 +316,8 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, cx18_av_write(cx, 0x103, reg); /* Set INPUT_MODE to Composite (0) or S-Video (1) */ - cx18_av_and_or(cx, 0x401, ~0x6, is_composite ? 0 : 0x02); + cx18_av_and_or_no_acfg(cx, 0x401, ~0x6, is_composite ? 0 : 0x02, + CXADEC_NO_ACFG_PLL | CXADEC_NO_ACFG_VID); /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */ cx18_av_and_or(cx, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0); /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */ @@ -318,12 +373,12 @@ static int set_v4lstd(struct cx18 *cx) This happens for example with the Yuan MPC622. */ if (fmt >= 4 && fmt < 8) { /* Set format to NTSC-M */ - cx18_av_and_or(cx, 0x400, ~0xf, 1); + cx18_av_and_or_no_acfg(cx, 0x400, ~0xf, 1, CXADEC_NO_ACFG_AFE); /* Turn off LCOMB */ cx18_av_and_or(cx, 0x47b, ~6, 0); } - cx18_av_and_or(cx, 0x400, ~0xf, fmt); - cx18_av_and_or(cx, 0x403, ~0x3, pal_m); + cx18_av_and_or_no_acfg(cx, 0x400, ~0xf, fmt, CXADEC_NO_ACFG_AFE); + cx18_av_and_or_no_acfg(cx, 0x403, ~0x3, pal_m, CXADEC_NO_ACFG_ALL); cx18_av_vbi_setup(cx); input_change(cx); return 0; |