diff options
Diffstat (limited to 'drivers/media/pci/cx25821/cx25821-medusa-video.c')
| -rw-r--r-- | drivers/media/pci/cx25821/cx25821-medusa-video.c | 731 |
1 files changed, 731 insertions, 0 deletions
diff --git a/drivers/media/pci/cx25821/cx25821-medusa-video.c b/drivers/media/pci/cx25821/cx25821-medusa-video.c new file mode 100644 index 000000000..f0a1ac77f --- /dev/null +++ b/drivers/media/pci/cx25821/cx25821-medusa-video.c @@ -0,0 +1,731 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for the Conexant CX25821 PCIe bridge + * + * Copyright (C) 2009 Conexant Systems Inc. + * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include "cx25821.h" +#include "cx25821-medusa-video.h" +#include "cx25821-biffuncs.h" + +/* + * medusa_enable_bluefield_output() + * + * Enable the generation of blue filed output if no video + * + */ +static void medusa_enable_bluefield_output(struct cx25821_dev *dev, int channel, + int enable) +{ + u32 value = 0; + u32 tmp = 0; + int out_ctrl = OUT_CTRL1; + int out_ctrl_ns = OUT_CTRL_NS; + + switch (channel) { + default: + case VDEC_A: + break; + case VDEC_B: + out_ctrl = VDEC_B_OUT_CTRL1; + out_ctrl_ns = VDEC_B_OUT_CTRL_NS; + break; + case VDEC_C: + out_ctrl = VDEC_C_OUT_CTRL1; + out_ctrl_ns = VDEC_C_OUT_CTRL_NS; + break; + case VDEC_D: + out_ctrl = VDEC_D_OUT_CTRL1; + out_ctrl_ns = VDEC_D_OUT_CTRL_NS; + break; + case VDEC_E: + out_ctrl = VDEC_E_OUT_CTRL1; + out_ctrl_ns = VDEC_E_OUT_CTRL_NS; + return; + case VDEC_F: + out_ctrl = VDEC_F_OUT_CTRL1; + out_ctrl_ns = VDEC_F_OUT_CTRL_NS; + return; + case VDEC_G: + out_ctrl = VDEC_G_OUT_CTRL1; + out_ctrl_ns = VDEC_G_OUT_CTRL_NS; + return; + case VDEC_H: + out_ctrl = VDEC_H_OUT_CTRL1; + out_ctrl_ns = VDEC_H_OUT_CTRL_NS; + return; + } + + value = cx25821_i2c_read(&dev->i2c_bus[0], out_ctrl, &tmp); + value &= 0xFFFFFF7F; /* clear BLUE_FIELD_EN */ + if (enable) + value |= 0x00000080; /* set BLUE_FIELD_EN */ + cx25821_i2c_write(&dev->i2c_bus[0], out_ctrl, value); + + value = cx25821_i2c_read(&dev->i2c_bus[0], out_ctrl_ns, &tmp); + value &= 0xFFFFFF7F; + if (enable) + value |= 0x00000080; /* set BLUE_FIELD_EN */ + cx25821_i2c_write(&dev->i2c_bus[0], out_ctrl_ns, value); +} + +static int medusa_initialize_ntsc(struct cx25821_dev *dev) +{ + int ret_val = 0; + int i = 0; + u32 value = 0; + u32 tmp = 0; + + for (i = 0; i < MAX_DECODERS; i++) { + /* set video format NTSC-M */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + MODE_CTRL + (0x200 * i), &tmp); + value &= 0xFFFFFFF0; + /* enable the fast locking mode bit[16] */ + value |= 0x10001; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + MODE_CTRL + (0x200 * i), value); + + /* resolution NTSC 720x480 */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + HORIZ_TIM_CTRL + (0x200 * i), &tmp); + value &= 0x00C00C00; + value |= 0x612D0074; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + HORIZ_TIM_CTRL + (0x200 * i), value); + + value = cx25821_i2c_read(&dev->i2c_bus[0], + VERT_TIM_CTRL + (0x200 * i), &tmp); + value &= 0x00C00C00; + value |= 0x1C1E001A; /* vblank_cnt + 2 to get camera ID */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + VERT_TIM_CTRL + (0x200 * i), value); + + /* chroma subcarrier step size */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + SC_STEP_SIZE + (0x200 * i), 0x43E00000); + + /* enable VIP optional active */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + OUT_CTRL_NS + (0x200 * i), &tmp); + value &= 0xFFFBFFFF; + value |= 0x00040000; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + OUT_CTRL_NS + (0x200 * i), value); + + /* enable VIP optional active (VIP_OPT_AL) for direct output. */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + OUT_CTRL1 + (0x200 * i), &tmp); + value &= 0xFFFBFFFF; + value |= 0x00040000; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + OUT_CTRL1 + (0x200 * i), value); + + /* + * clear VPRES_VERT_EN bit, fixes the chroma run away problem + * when the input switching rate < 16 fields + */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + MISC_TIM_CTRL + (0x200 * i), &tmp); + /* disable special play detection */ + value = setBitAtPos(value, 14); + value = clearBitAtPos(value, 15); + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + MISC_TIM_CTRL + (0x200 * i), value); + + /* set vbi_gate_en to 0 */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + DFE_CTRL1 + (0x200 * i), &tmp); + value = clearBitAtPos(value, 29); + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DFE_CTRL1 + (0x200 * i), value); + + /* Enable the generation of blue field output if no video */ + medusa_enable_bluefield_output(dev, i, 1); + } + + for (i = 0; i < MAX_ENCODERS; i++) { + /* NTSC hclock */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + DENC_A_REG_1 + (0x100 * i), &tmp); + value &= 0xF000FC00; + value |= 0x06B402D0; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_1 + (0x100 * i), value); + + /* burst begin and burst end */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + DENC_A_REG_2 + (0x100 * i), &tmp); + value &= 0xFF000000; + value |= 0x007E9054; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_2 + (0x100 * i), value); + + value = cx25821_i2c_read(&dev->i2c_bus[0], + DENC_A_REG_3 + (0x100 * i), &tmp); + value &= 0xFC00FE00; + value |= 0x00EC00F0; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_3 + (0x100 * i), value); + + /* set NTSC vblank, no phase alternation, 7.5 IRE pedestal */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + DENC_A_REG_4 + (0x100 * i), &tmp); + value &= 0x00FCFFFF; + value |= 0x13020000; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_4 + (0x100 * i), value); + + value = cx25821_i2c_read(&dev->i2c_bus[0], + DENC_A_REG_5 + (0x100 * i), &tmp); + value &= 0xFFFF0000; + value |= 0x0000E575; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_5 + (0x100 * i), value); + + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_6 + (0x100 * i), 0x009A89C1); + + /* Subcarrier Increment */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_7 + (0x100 * i), 0x21F07C1F); + } + + /* set picture resolutions */ + /* 0 - 720 */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], HSCALE_CTRL, 0x0); + /* 0 - 480 */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], VSCALE_CTRL, 0x0); + + /* set Bypass input format to NTSC 525 lines */ + value = cx25821_i2c_read(&dev->i2c_bus[0], BYP_AB_CTRL, &tmp); + value |= 0x00080200; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], BYP_AB_CTRL, value); + + return ret_val; +} + +static int medusa_PALCombInit(struct cx25821_dev *dev, int dec) +{ + int ret_val = -1; + u32 value = 0, tmp = 0; + + /* Setup for 2D threshold */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + COMB_2D_HFS_CFG + (0x200 * dec), 0x20002861); + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + COMB_2D_HFD_CFG + (0x200 * dec), 0x20002861); + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + COMB_2D_LF_CFG + (0x200 * dec), 0x200A1023); + + /* Setup flat chroma and luma thresholds */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + COMB_FLAT_THRESH_CTRL + (0x200 * dec), &tmp); + value &= 0x06230000; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + COMB_FLAT_THRESH_CTRL + (0x200 * dec), value); + + /* set comb 2D blend */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + COMB_2D_BLEND + (0x200 * dec), 0x210F0F0F); + + /* COMB MISC CONTROL */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + COMB_MISC_CTRL + (0x200 * dec), 0x41120A7F); + + return ret_val; +} + +static int medusa_initialize_pal(struct cx25821_dev *dev) +{ + int ret_val = 0; + int i = 0; + u32 value = 0; + u32 tmp = 0; + + for (i = 0; i < MAX_DECODERS; i++) { + /* set video format PAL-BDGHI */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + MODE_CTRL + (0x200 * i), &tmp); + value &= 0xFFFFFFF0; + /* enable the fast locking mode bit[16] */ + value |= 0x10004; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + MODE_CTRL + (0x200 * i), value); + + /* resolution PAL 720x576 */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + HORIZ_TIM_CTRL + (0x200 * i), &tmp); + value &= 0x00C00C00; + value |= 0x632D007D; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + HORIZ_TIM_CTRL + (0x200 * i), value); + + /* vblank656_cnt=x26, vactive_cnt=240h, vblank_cnt=x24 */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + VERT_TIM_CTRL + (0x200 * i), &tmp); + value &= 0x00C00C00; + value |= 0x28240026; /* vblank_cnt + 2 to get camera ID */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + VERT_TIM_CTRL + (0x200 * i), value); + + /* chroma subcarrier step size */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + SC_STEP_SIZE + (0x200 * i), 0x5411E2D0); + + /* enable VIP optional active */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + OUT_CTRL_NS + (0x200 * i), &tmp); + value &= 0xFFFBFFFF; + value |= 0x00040000; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + OUT_CTRL_NS + (0x200 * i), value); + + /* enable VIP optional active (VIP_OPT_AL) for direct output. */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + OUT_CTRL1 + (0x200 * i), &tmp); + value &= 0xFFFBFFFF; + value |= 0x00040000; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + OUT_CTRL1 + (0x200 * i), value); + + /* + * clear VPRES_VERT_EN bit, fixes the chroma run away problem + * when the input switching rate < 16 fields + */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + MISC_TIM_CTRL + (0x200 * i), &tmp); + /* disable special play detection */ + value = setBitAtPos(value, 14); + value = clearBitAtPos(value, 15); + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + MISC_TIM_CTRL + (0x200 * i), value); + + /* set vbi_gate_en to 0 */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + DFE_CTRL1 + (0x200 * i), &tmp); + value = clearBitAtPos(value, 29); + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DFE_CTRL1 + (0x200 * i), value); + + medusa_PALCombInit(dev, i); + + /* Enable the generation of blue field output if no video */ + medusa_enable_bluefield_output(dev, i, 1); + } + + for (i = 0; i < MAX_ENCODERS; i++) { + /* PAL hclock */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + DENC_A_REG_1 + (0x100 * i), &tmp); + value &= 0xF000FC00; + value |= 0x06C002D0; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_1 + (0x100 * i), value); + + /* burst begin and burst end */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + DENC_A_REG_2 + (0x100 * i), &tmp); + value &= 0xFF000000; + value |= 0x007E9754; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_2 + (0x100 * i), value); + + /* hblank and vactive */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + DENC_A_REG_3 + (0x100 * i), &tmp); + value &= 0xFC00FE00; + value |= 0x00FC0120; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_3 + (0x100 * i), value); + + /* set PAL vblank, phase alternation, 0 IRE pedestal */ + value = cx25821_i2c_read(&dev->i2c_bus[0], + DENC_A_REG_4 + (0x100 * i), &tmp); + value &= 0x00FCFFFF; + value |= 0x14010000; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_4 + (0x100 * i), value); + + value = cx25821_i2c_read(&dev->i2c_bus[0], + DENC_A_REG_5 + (0x100 * i), &tmp); + value &= 0xFFFF0000; + value |= 0x0000F078; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_5 + (0x100 * i), value); + + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_6 + (0x100 * i), 0x00A493CF); + + /* Subcarrier Increment */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], + DENC_A_REG_7 + (0x100 * i), 0x2A098ACB); + } + + /* set picture resolutions */ + /* 0 - 720 */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], HSCALE_CTRL, 0x0); + /* 0 - 576 */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], VSCALE_CTRL, 0x0); + + /* set Bypass input format to PAL 625 lines */ + value = cx25821_i2c_read(&dev->i2c_bus[0], BYP_AB_CTRL, &tmp); + value &= 0xFFF7FDFF; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], BYP_AB_CTRL, value); + + return ret_val; +} + +int medusa_set_videostandard(struct cx25821_dev *dev) +{ + int status = 0; + u32 value = 0, tmp = 0; + + if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK) + status = medusa_initialize_pal(dev); + else + status = medusa_initialize_ntsc(dev); + + /* Enable DENC_A output */ + value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_A_REG_4, &tmp); + value = setBitAtPos(value, 4); + status = cx25821_i2c_write(&dev->i2c_bus[0], DENC_A_REG_4, value); + + /* Enable DENC_B output */ + value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_B_REG_4, &tmp); + value = setBitAtPos(value, 4); + status = cx25821_i2c_write(&dev->i2c_bus[0], DENC_B_REG_4, value); + + return status; +} + +void medusa_set_resolution(struct cx25821_dev *dev, int width, + int decoder_select) +{ + int decoder = 0; + int decoder_count = 0; + u32 hscale = 0x0; + u32 vscale = 0x0; + const int MAX_WIDTH = 720; + + /* validate the width */ + if (width > MAX_WIDTH) { + pr_info("%s(): width %d > MAX_WIDTH %d ! resetting to MAX_WIDTH\n", + __func__, width, MAX_WIDTH); + width = MAX_WIDTH; + } + + if (decoder_select <= 7 && decoder_select >= 0) { + decoder = decoder_select; + decoder_count = decoder_select + 1; + } else { + decoder = 0; + decoder_count = dev->_max_num_decoders; + } + + switch (width) { + case 320: + hscale = 0x13E34B; + vscale = 0x0; + break; + + case 352: + hscale = 0x10A273; + vscale = 0x0; + break; + + case 176: + hscale = 0x3115B2; + vscale = 0x1E00; + break; + + case 160: + hscale = 0x378D84; + vscale = 0x1E00; + break; + + default: /* 720 */ + hscale = 0x0; + vscale = 0x0; + break; + } + + for (; decoder < decoder_count; decoder++) { + /* write scaling values for each decoder */ + cx25821_i2c_write(&dev->i2c_bus[0], + HSCALE_CTRL + (0x200 * decoder), hscale); + cx25821_i2c_write(&dev->i2c_bus[0], + VSCALE_CTRL + (0x200 * decoder), vscale); + } +} + +static void medusa_set_decoderduration(struct cx25821_dev *dev, int decoder, + int duration) +{ + u32 fld_cnt = 0; + u32 tmp = 0; + u32 disp_cnt_reg = DISP_AB_CNT; + + /* no support */ + if (decoder < VDEC_A || decoder > VDEC_H) { + return; + } + + switch (decoder) { + default: + break; + case VDEC_C: + case VDEC_D: + disp_cnt_reg = DISP_CD_CNT; + break; + case VDEC_E: + case VDEC_F: + disp_cnt_reg = DISP_EF_CNT; + break; + case VDEC_G: + case VDEC_H: + disp_cnt_reg = DISP_GH_CNT; + break; + } + + /* update hardware */ + fld_cnt = cx25821_i2c_read(&dev->i2c_bus[0], disp_cnt_reg, &tmp); + + if (!(decoder % 2)) { /* EVEN decoder */ + fld_cnt &= 0xFFFF0000; + fld_cnt |= duration; + } else { + fld_cnt &= 0x0000FFFF; + fld_cnt |= ((u32) duration) << 16; + } + + cx25821_i2c_write(&dev->i2c_bus[0], disp_cnt_reg, fld_cnt); +} + +/* Map to Medusa register setting */ +static int mapM(int srcMin, int srcMax, int srcVal, int dstMin, int dstMax, + int *dstVal) +{ + int numerator; + int denominator; + int quotient; + + if ((srcMin == srcMax) || (srcVal < srcMin) || (srcVal > srcMax)) + return -1; + /* + * This is the overall expression used: + * *dstVal = + * (srcVal - srcMin)*(dstMax - dstMin) / (srcMax - srcMin) + dstMin; + * but we need to account for rounding so below we use the modulus + * operator to find the remainder and increment if necessary. + */ + numerator = (srcVal - srcMin) * (dstMax - dstMin); + denominator = srcMax - srcMin; + quotient = numerator / denominator; + + if (2 * (numerator % denominator) >= denominator) + quotient++; + + *dstVal = quotient + dstMin; + + return 0; +} + +static unsigned long convert_to_twos(long numeric, unsigned long bits_len) +{ + unsigned char temp; + + if (numeric >= 0) + return numeric; + else { + temp = ~(abs(numeric) & 0xFF); + temp += 1; + return temp; + } +} + +int medusa_set_brightness(struct cx25821_dev *dev, int brightness, int decoder) +{ + int ret_val = 0; + int value = 0; + u32 val = 0, tmp = 0; + + if ((brightness > VIDEO_PROCAMP_MAX) || + (brightness < VIDEO_PROCAMP_MIN)) { + return -1; + } + ret_val = mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, brightness, + SIGNED_BYTE_MIN, SIGNED_BYTE_MAX, &value); + value = convert_to_twos(value, 8); + val = cx25821_i2c_read(&dev->i2c_bus[0], + VDEC_A_BRITE_CTRL + (0x200 * decoder), &tmp); + val &= 0xFFFFFF00; + ret_val |= cx25821_i2c_write(&dev->i2c_bus[0], + VDEC_A_BRITE_CTRL + (0x200 * decoder), val | value); + return ret_val; +} + +int medusa_set_contrast(struct cx25821_dev *dev, int contrast, int decoder) +{ + int ret_val = 0; + int value = 0; + u32 val = 0, tmp = 0; + + if ((contrast > VIDEO_PROCAMP_MAX) || (contrast < VIDEO_PROCAMP_MIN)) { + return -1; + } + + ret_val = mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, contrast, + UNSIGNED_BYTE_MIN, UNSIGNED_BYTE_MAX, &value); + val = cx25821_i2c_read(&dev->i2c_bus[0], + VDEC_A_CNTRST_CTRL + (0x200 * decoder), &tmp); + val &= 0xFFFFFF00; + ret_val |= cx25821_i2c_write(&dev->i2c_bus[0], + VDEC_A_CNTRST_CTRL + (0x200 * decoder), val | value); + + return ret_val; +} + +int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder) +{ + int ret_val = 0; + int value = 0; + u32 val = 0, tmp = 0; + + if ((hue > VIDEO_PROCAMP_MAX) || (hue < VIDEO_PROCAMP_MIN)) { + return -1; + } + + ret_val = mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, hue, + SIGNED_BYTE_MIN, SIGNED_BYTE_MAX, &value); + + value = convert_to_twos(value, 8); + val = cx25821_i2c_read(&dev->i2c_bus[0], + VDEC_A_HUE_CTRL + (0x200 * decoder), &tmp); + val &= 0xFFFFFF00; + + ret_val |= cx25821_i2c_write(&dev->i2c_bus[0], + VDEC_A_HUE_CTRL + (0x200 * decoder), val | value); + + return ret_val; +} + +int medusa_set_saturation(struct cx25821_dev *dev, int saturation, int decoder) +{ + int ret_val = 0; + int value = 0; + u32 val = 0, tmp = 0; + + if ((saturation > VIDEO_PROCAMP_MAX) || + (saturation < VIDEO_PROCAMP_MIN)) { + return -1; + } + + ret_val = mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, saturation, + UNSIGNED_BYTE_MIN, UNSIGNED_BYTE_MAX, &value); + + val = cx25821_i2c_read(&dev->i2c_bus[0], + VDEC_A_USAT_CTRL + (0x200 * decoder), &tmp); + val &= 0xFFFFFF00; + ret_val |= cx25821_i2c_write(&dev->i2c_bus[0], + VDEC_A_USAT_CTRL + (0x200 * decoder), val | value); + + val = cx25821_i2c_read(&dev->i2c_bus[0], + VDEC_A_VSAT_CTRL + (0x200 * decoder), &tmp); + val &= 0xFFFFFF00; + ret_val |= cx25821_i2c_write(&dev->i2c_bus[0], + VDEC_A_VSAT_CTRL + (0x200 * decoder), val | value); + + return ret_val; +} + +/* Program the display sequence and monitor output. */ + +int medusa_video_init(struct cx25821_dev *dev) +{ + u32 value = 0, tmp = 0; + int ret_val = 0; + int i = 0; + + /* disable Auto source selection on all video decoders */ + value = cx25821_i2c_read(&dev->i2c_bus[0], MON_A_CTRL, &tmp); + value &= 0xFFFFF0FF; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], MON_A_CTRL, value); + + if (ret_val < 0) + goto error; + + /* Turn off Master source switch enable */ + value = cx25821_i2c_read(&dev->i2c_bus[0], MON_A_CTRL, &tmp); + value &= 0xFFFFFFDF; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], MON_A_CTRL, value); + + if (ret_val < 0) + goto error; + + /* + * FIXME: due to a coding bug the duration was always 0. It's + * likely that it really should be something else, but due to the + * lack of documentation I have no idea what it should be. For + * now just fill in 0 as the duration. + */ + for (i = 0; i < dev->_max_num_decoders; i++) + medusa_set_decoderduration(dev, i, 0); + + /* Select monitor as DENC A input, power up the DAC */ + value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_AB_CTRL, &tmp); + value &= 0xFF70FF70; + value |= 0x00090008; /* set en_active */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], DENC_AB_CTRL, value); + + if (ret_val < 0) + goto error; + + /* enable input is VIP/656 */ + value = cx25821_i2c_read(&dev->i2c_bus[0], BYP_AB_CTRL, &tmp); + value |= 0x00040100; /* enable VIP */ + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], BYP_AB_CTRL, value); + + if (ret_val < 0) + goto error; + + /* select AFE clock to output mode */ + value = cx25821_i2c_read(&dev->i2c_bus[0], AFE_AB_DIAG_CTRL, &tmp); + value &= 0x83FFFFFF; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], AFE_AB_DIAG_CTRL, + value | 0x10000000); + + if (ret_val < 0) + goto error; + + /* Turn on all of the data out and control output pins. */ + value = cx25821_i2c_read(&dev->i2c_bus[0], PIN_OE_CTRL, &tmp); + value &= 0xFEF0FE00; + if (dev->_max_num_decoders == MAX_DECODERS) { + /* + * Note: The octal board does not support control pins(bit16-19) + * These bits are ignored in the octal board. + * + * disable VDEC A-C port, default to Mobilygen Interface + */ + value |= 0x010001F8; + } else { + /* disable VDEC A-C port, default to Mobilygen Interface */ + value |= 0x010F0108; + } + + value |= 7; + ret_val = cx25821_i2c_write(&dev->i2c_bus[0], PIN_OE_CTRL, value); + + if (ret_val < 0) + goto error; + + ret_val = medusa_set_videostandard(dev); + +error: + return ret_val; +} |