/* Copyright (c) 2005 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to * deal in the Software without restriction, including without limitation the * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. * * Neither the name of the Advanced Micro Devices, Inc. nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * */ /* * This file contains routines to control the Philips SAA7114 video decoder. * */ /*---------------------------*/ /* TABLE OF DEFAULT VALUES */ /*---------------------------*/ typedef struct tagGFX_SAA7114_INIT { unsigned char index; unsigned char value; } GFX_SAA7114_INIT; /* Task A is for VBI raw data and task B is for video */ GFX_SAA7114_INIT gfx_saa7114_init_values[] = { {0x01, 0x08}, {0x02, 0xC0}, {0x03, 0x00}, {0x04, 0x90}, {0x05, 0x90}, {0x06, 0xEB}, {0x07, 0xE0}, {0x08, 0x88}, {0x09, 0x40}, {0x0A, 0x80}, {0x0B, 0x44}, {0x0C, 0x40}, {0x0D, 0x00}, {0x0E, 0x89}, {0x0F, 0x2E}, {0x10, 0x0E}, {0x11, 0x00}, {0x12, 0x05}, {0x13, 0x00}, {0x14, 0x08}, {0x15, 0x11}, {0x16, 0xFE}, {0x17, 0x00}, {0x18, 0x40}, {0x19, 0x80}, {0x30, 0xBC}, {0x31, 0xDF}, {0x32, 0x02}, {0x34, 0xCD}, {0x35, 0xCC}, {0x36, 0x3A}, {0x38, 0x03}, {0x39, 0x10}, {0x3A, 0x00}, {0x40, 0x00}, {0x41, 0xFF}, {0x42, 0xFF}, {0x43, 0xFF}, {0x44, 0xFF}, {0x45, 0xFF}, {0x46, 0xFF}, {0x47, 0xFF}, {0x48, 0xFF}, {0x49, 0xFF}, {0x4A, 0xFF}, {0x4B, 0xFF}, {0x4C, 0xFF}, {0x4D, 0xFF}, {0x4E, 0xFF}, {0x4F, 0xFF}, {0x50, 0xFF}, {0x51, 0xFF}, {0x52, 0xFF}, {0x53, 0xFF}, {0x54, 0xFF}, {0x55, 0xFF}, {0x56, 0xFF}, {0x57, 0xFF}, {0x58, 0x00}, {0x59, 0x47}, {0x5A, 0x06}, {0x5B, 0x43}, {0x5D, 0x3E}, {0x5E, 0x00}, {0x80, 0x30}, {0x83, 0x00}, {0x84, 0x60}, {0x85, 0x00}, {0x86, 0xE5}, {0x87, 0x01}, {0x88, 0xF8}, /* VBI task */ {0x90, 0x01}, {0x91, 0xC8}, {0x92, 0x08}, {0x93, 0x84}, {0x94, 0x10}, {0x95, 0x00}, {0x96, 0xD0}, {0x97, 0x02}, {0x98, 0x05}, {0x99, 0x00}, {0x9A, 0x0B}, {0x9B, 0x00}, {0x9C, 0xA0}, {0x9D, 0x05}, {0x9E, 0x0B}, {0x9F, 0x00}, {0xA0, 0x01}, {0xA1, 0x00}, {0xA2, 0x00}, {0xA4, 0x80}, {0xA5, 0x40}, {0xA6, 0x40}, {0xA8, 0x00}, {0xA9, 0x02}, {0xAA, 0x00}, {0xAC, 0x00}, {0xAD, 0x01}, {0xAE, 0x00}, {0xB0, 0x00}, {0xB1, 0x04}, {0xB2, 0x00}, {0xB3, 0x04}, {0xB4, 0x00}, {0xB8, 0x00}, {0xB9, 0x00}, {0xBA, 0x00}, {0xBB, 0x00}, {0xBC, 0x00}, {0xBD, 0x00}, {0xBE, 0x00}, {0xBF, 0x00}, /* Video task */ {0xC0, 0x80}, {0xC1, 0x08}, {0xC2, 0x00}, {0xC3, 0x80}, {0xC4, 0x10}, {0xC5, 0x00}, {0xC6, 0xD0}, {0xC7, 0x02}, {0xC8, 0x11}, {0xC9, 0x00}, {0xCA, 0xF1}, {0xCB, 0x00}, {0xCC, 0xD0}, {0xCD, 0x02}, {0xCE, 0xF1}, {0xCF, 0x00}, {0xD0, 0x01}, {0xD1, 0x00}, {0xD2, 0x00}, {0xD4, 0x80}, {0xD5, 0x40}, {0xD6, 0x40}, {0xD8, 0x00}, {0xD9, 0x04}, {0xDA, 0x00}, {0xDC, 0x00}, {0xDD, 0x02}, {0xDE, 0x00}, {0xE0, 0x00}, {0xE1, 0x04}, {0xE2, 0x00}, {0xE3, 0x04}, {0xE4, 0x00}, {0xE8, 0x00}, {0xE9, 0x00}, {0xEA, 0x00}, {0xEB, 0x00}, {0xEC, 0x00}, {0xED, 0x00}, {0xEE, 0x00}, {0xEF, 0x00}, }; #define GFX_NUM_SAA7114_INIT_VALUES \ sizeof(gfx_saa7114_init_values)/sizeof(GFX_SAA7114_INIT) /*-----------------------------------------------------*/ /* TABLE OF FIR PREFILTER RECOMMENDED VALUES */ /*-----------------------------------------------------*/ int optimize_for_aliasing = 0; typedef struct tagGFX_SAA7114_FIR_PREFILTER { unsigned char prescaler; unsigned char acl_low; unsigned char prefilter_low; unsigned char acl_high; unsigned char prefilter_high; } GFX_SAA7114_FIR_PREFILTER; GFX_SAA7114_FIR_PREFILTER gfx_saa7114_fir_values[] = { {0x01, 0x00, 0x00, 0x00, 0x00}, {0x02, 0x02, 0x5A, 0x01, 0x51}, {0x03, 0x04, 0xAB, 0x03, 0xA2}, {0x04, 0x07, 0xA3, 0x04, 0xAB}, {0x05, 0x08, 0xAC, 0x07, 0xA3}, {0x06, 0x08, 0xFC, 0x07, 0xF3}, {0x07, 0x08, 0xFC, 0x07, 0xF3}, {0x08, 0x0F, 0xF4, 0x08, 0xFC}, {0x09, 0x0F, 0xF4, 0x08, 0xFC}, {0x0A, 0x10, 0xFD, 0x08, 0xFC}, {0x0B, 0x10, 0xFD, 0x08, 0xFC}, {0x0C, 0x10, 0xFD, 0x08, 0xFC}, {0x0D, 0x10, 0xFD, 0x10, 0xFD}, {0x0E, 0x10, 0xFD, 0x10, 0xFD}, {0x0F, 0x1F, 0xF5, 0x10, 0xFD}, {0x10, 0x20, 0xFE, 0x10, 0xFD}, {0x11, 0x20, 0xFE, 0x10, 0xFD}, {0x12, 0x20, 0xFE, 0x10, 0xFD}, {0x13, 0x20, 0xFE, 0x20, 0xFE}, {0x14, 0x20, 0xFE, 0x20, 0xFE}, {0x15, 0x20, 0xFE, 0x20, 0xFE}, {0x16, 0x20, 0xFE, 0x20, 0xFE}, {0x17, 0x20, 0xFE, 0x20, 0xFE}, {0x18, 0x20, 0xFE, 0x20, 0xFE}, {0x19, 0x20, 0xFE, 0x20, 0xFE}, {0x1A, 0x20, 0xFE, 0x20, 0xFE}, {0x1B, 0x20, 0xFE, 0x20, 0xFE}, {0x1C, 0x20, 0xFE, 0x20, 0xFE}, {0x1D, 0x20, 0xFE, 0x20, 0xFE}, {0x1E, 0x20, 0xFE, 0x20, 0xFE}, {0x1F, 0x20, 0xFE, 0x20, 0xFE}, {0x20, 0x3F, 0xFF, 0x20, 0xFE}, {0x21, 0x3F, 0xFF, 0x20, 0xFE}, {0x22, 0x3F, 0xFF, 0x20, 0xFE}, {0x23, 0x3F, 0xFF, 0x20, 0xFF} }; int saa7114_write_reg(unsigned char reg, unsigned char val) { return gfx_i2c_write(2, SAA7114_CHIPADDR, reg, 1, &val); } int saa7114_read_reg(unsigned char reg, unsigned char *val) { return gfx_i2c_read(2, SAA7114_CHIPADDR, reg, 1, val); } /*---------------------------------------------------------------------------- * gfx_set_decoder_vbi_upscale * * This routine configures the video decoder task A to upscale raw VBI data * horizontally to match a different system clock. * The upscale is from 13.5 MHz (SAA7114) to 14.318 MHz (Bt835). *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_vbi_upscale(void) #else int gfx_set_decoder_vbi_upscale(void) #endif { /* Set horizontal output length to 1528 (720 * 2 * 14.318 / 13.5) */ saa7114_write_reg(SAA7114_TASK_A_HORZ_OUTPUT_LO, 0xF8); saa7114_write_reg(SAA7114_TASK_A_HORZ_OUTPUT_HI, 0x05); /* Set horizontal luminance scaling increment to 484 (1024 * 13.5 / * 28.636) */ saa7114_write_reg(SAA7114_TASK_A_HSCALE_LUMA_LO, 0xE4); saa7114_write_reg(SAA7114_TASK_A_HSCALE_LUMA_HI, 0x01); /* Set horizontal chrominance scaling increment to 242 */ saa7114_write_reg(SAA7114_TASK_A_HSCALE_CHROMA_LO, 0xF2); saa7114_write_reg(SAA7114_TASK_A_HSCALE_CHROMA_HI, 0x00); return GFX_STATUS_OK; } /*---------------------------------------------------------------------------- * gfx_decoder_software_reset * * This routine performs a software reset of the decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_decoder_software_reset(void) #else int gfx_decoder_software_reset(void) #endif { saa7114_write_reg(0x88, 0xC0); /* I2C-bus latency should be sufficient for resetting the internal state * machine. */ /* gfx_delay_milliseconds(10); */ saa7114_write_reg(0x88, 0xF0); return GFX_STATUS_OK; } /*---------------------------------------------------------------------------- * gfx_decoder_detect_macrovision * * This routine detects if macrovision exists in the input of the video * decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_decoder_detect_macrovision(void) #else int gfx_decoder_detect_macrovision(void) #endif { unsigned char macrovision = 0xff; saa7114_read_reg(SAA7114_STATUS, ¯ovision); return ((macrovision & 0x02) >> 1); } /*---------------------------------------------------------------------------- * gfx_decoder_detect_video * * This routine detects if video exists in the input of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_decoder_detect_video(void) #else int gfx_decoder_detect_video(void) #endif { unsigned char video = 0xff; saa7114_read_reg(SAA7114_STATUS, &video); return !((video & 0x40) >> 6); } /*---------------------------------------------------------------------------- * gfx_set_decoder_defaults * * This routine is called to set the initial register values of the * video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_defaults(void) #else int gfx_set_decoder_defaults(void) #endif { unsigned int i; /* LOOP THROUGH INDEX/DATA PAIRS IN THE TABLE */ for (i = 0; i < GFX_NUM_SAA7114_INIT_VALUES; i++) { saa7114_write_reg(gfx_saa7114_init_values[i].index, gfx_saa7114_init_values[i].value); } gfx_decoder_software_reset(); return (0); } /*---------------------------------------------------------------------------- * gfx_set_decoder_analog_input * * This routine sets the analog input of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_analog_input(unsigned char input) #else int gfx_set_decoder_analog_input(unsigned char input) #endif { saa7114_write_reg(SAA7114_ANALOG_INPUT_CTRL1, input); return (0); } /*---------------------------------------------------------------------------- * gfx_set_decoder_brightness * * This routine sets the brightness of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_brightness(unsigned char brightness) #else int gfx_set_decoder_brightness(unsigned char brightness) #endif { saa7114_write_reg(SAA7114_BRIGHTNESS, brightness); return (0); } /*---------------------------------------------------------------------------- * gfx_set_decoder_contrast * * This routine sets the contrast of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_contrast(unsigned char contrast) #else int gfx_set_decoder_contrast(unsigned char contrast) #endif { saa7114_write_reg(SAA7114_CONTRAST, (unsigned char)(contrast >> 1)); return (0); } /*---------------------------------------------------------------------------- * gfx_set_decoder_hue * * This routine sets the hue control of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_hue(char hue) #else int gfx_set_decoder_hue(char hue) #endif { saa7114_write_reg(SAA7114_HUE, (unsigned char)hue); return (0); } /*---------------------------------------------------------------------------- * gfx_set_decoder_saturation * * This routine sets the saturation adjustment of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_saturation(unsigned char saturation) #else int gfx_set_decoder_saturation(unsigned char saturation) #endif { saa7114_write_reg(SAA7114_SATURATION, (unsigned char)(saturation >> 1)); return (0); } /*---------------------------------------------------------------------------- * gfx_set_decoder_input_offset * * This routine sets the size of the decoder input window. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_input_offset(unsigned short x, unsigned short y) #else int gfx_set_decoder_input_offset(unsigned short x, unsigned short y) #endif { /* SET THE INPUT WINDOW OFFSET */ saa7114_write_reg(SAA7114_HORZ_OFFSET_LO, (unsigned char)(x & 0x00FF)); saa7114_write_reg(SAA7114_HORZ_OFFSET_HI, (unsigned char)(x >> 8)); saa7114_write_reg(SAA7114_VERT_OFFSET_LO, (unsigned char)(y & 0x00FF)); saa7114_write_reg(SAA7114_VERT_OFFSET_HI, (unsigned char)(y >> 8)); gfx_decoder_software_reset(); return (0); } /*---------------------------------------------------------------------------- * gfx_set_decoder_input_size * * This routine sets the size of the decoder input window. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_input_size(unsigned short width, unsigned short height) #else int gfx_set_decoder_input_size(unsigned short width, unsigned short height) #endif { /* DIVIDE HEIGHT BY TWO FOR INTERLACING */ height = (height + 1) >> 1; /* SET THE INPUT WINDOW SIZE */ saa7114_write_reg(SAA7114_HORZ_INPUT_LO, (unsigned char)(width & 0x00FF)); saa7114_write_reg(SAA7114_HORZ_INPUT_HI, (unsigned char)(width >> 8)); saa7114_write_reg(SAA7114_VERT_INPUT_LO, (unsigned char)(height & 0x00FF)); saa7114_write_reg(SAA7114_VERT_INPUT_HI, (unsigned char)(height >> 8)); gfx_decoder_software_reset(); return (0); } /*---------------------------------------------------------------------------- * gfx_set_decoder_output_size * * This routine sets the size of the decoder output window. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_output_size(unsigned short width, unsigned short height) #else int gfx_set_decoder_output_size(unsigned short width, unsigned short height) #endif { /* ROUND WIDTH UP TO EVEN NUMBER TO PREVENT DECODER BECOMING STUCK */ width = ((width + 1) >> 1) << 1; /* DIVIDE HEIGHT BY TWO FOR INTERLACING */ height = (height + 1) >> 1; /* SET THE OUTPUT WINDOW SIZE */ saa7114_write_reg(SAA7114_HORZ_OUTPUT_LO, (unsigned char)(width & 0x00FF)); saa7114_write_reg(SAA7114_HORZ_OUTPUT_HI, (unsigned char)(width >> 8)); saa7114_write_reg(SAA7114_VERT_OUTPUT_LO, (unsigned char)(height & 0x00FF)); saa7114_write_reg(SAA7114_VERT_OUTPUT_HI, (unsigned char)(height >> 8)); gfx_decoder_software_reset(); return (0); } /*---------------------------------------------------------------------------- * gfx_set_decoder_scale * * This routine sets the scaling of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_scale(unsigned short srcw, unsigned short srch, unsigned short dstw, unsigned short dsth) #else int gfx_set_decoder_scale(unsigned short srcw, unsigned short srch, unsigned short dstw, unsigned short dsth) #endif { unsigned char prescale = 0; int scale = 0; /* SET THE HORIZONTAL PRESCALE */ /* Downscale from 1 to 1/63 source size. */ if (dstw) prescale = (unsigned char)(srcw / dstw); if (!prescale) prescale = 1; if (prescale > 63) return (1); saa7114_write_reg(SAA7114_HORZ_PRESCALER, prescale); /* USE FIR PREFILTER FUNCTIONALITY (OPTIMISATION) */ if (prescale < 36) { if (optimize_for_aliasing) { saa7114_write_reg(SAA7114_HORZ_ACL, gfx_saa7114_fir_values[prescale - 1].acl_low); saa7114_write_reg(SAA7114_HORZ_FIR_PREFILTER, gfx_saa7114_fir_values[prescale - 1].prefilter_low); } else { saa7114_write_reg(SAA7114_HORZ_ACL, gfx_saa7114_fir_values[prescale - 1].acl_high); saa7114_write_reg(SAA7114_HORZ_FIR_PREFILTER, gfx_saa7114_fir_values[prescale - 1].prefilter_high); } } else { /* SAME SETTINGS FOR RATIO 1/35 DOWNTO 1/63 */ if (optimize_for_aliasing) { saa7114_write_reg(SAA7114_HORZ_ACL, gfx_saa7114_fir_values[34].acl_low); saa7114_write_reg(SAA7114_HORZ_FIR_PREFILTER, gfx_saa7114_fir_values[34].prefilter_low); } else { saa7114_write_reg(SAA7114_HORZ_ACL, gfx_saa7114_fir_values[34].acl_high); saa7114_write_reg(SAA7114_HORZ_FIR_PREFILTER, gfx_saa7114_fir_values[34].prefilter_high); } } /* SET THE HORIZONTAL SCALING */ if (!dstw) return (1); scale = ((1024 * srcw * 1000) / (dstw * prescale)) / 1000; if ((scale > 8191) || (scale < 300)) return (1); saa7114_write_reg(SAA7114_HSCALE_LUMA_LO, (unsigned char)(scale & 0x00FF)); saa7114_write_reg(SAA7114_HSCALE_LUMA_HI, (unsigned char)(scale >> 8)); scale >>= 1; saa7114_write_reg(SAA7114_HSCALE_CHROMA_LO, (unsigned char)(scale & 0x00FF)); saa7114_write_reg(SAA7114_HSCALE_CHROMA_HI, (unsigned char)(scale >> 8)); /* SET THE VERTICAL SCALING (INTERPOLATION MODE) */ if (!dsth) return (1); /* ROUND DESTINATION HEIGHT UP TO EVEN NUMBER TO PREVENT DECODER BECOMING * STUCK */ dsth = ((dsth + 1) >> 1) << 1; scale = (int)((1024 * srch) / dsth); saa7114_write_reg(SAA7114_VSCALE_LUMA_LO, (unsigned char)(scale & 0x00FF)); saa7114_write_reg(SAA7114_VSCALE_LUMA_HI, (unsigned char)(scale >> 8)); saa7114_write_reg(SAA7114_VSCALE_CHROMA_LO, (unsigned char)(scale & 0x00FF)); saa7114_write_reg(SAA7114_VSCALE_CHROMA_HI, (unsigned char)(scale >> 8)); if (dsth >= (srch >> 1)) { /* USE INTERPOLATION MODE FOR SCALE FACTOR ABOVE 0.5 */ saa7114_write_reg(SAA7114_VSCALE_CONTROL, 0x00); /* SET VERTICAL PHASE REGISTER FOR CORRECT SCALED INTERLACED OUTPUT * (OPTIMISATION) */ /* THE OPTIMISATION IS BASED ON OFIDC = 0 (REG 90h[6] = 0 ) */ saa7114_write_reg(SAA7114_VSCALE_CHROMA_OFFS0, SAA7114_VSCALE_PHO); saa7114_write_reg(SAA7114_VSCALE_CHROMA_OFFS1, SAA7114_VSCALE_PHO); saa7114_write_reg(SAA7114_VSCALE_CHROMA_OFFS2, (unsigned char)(SAA7114_VSCALE_PHO + scale / 64 - 16)); saa7114_write_reg(SAA7114_VSCALE_CHROMA_OFFS3, (unsigned char)(SAA7114_VSCALE_PHO + scale / 64 - 16)); saa7114_write_reg(SAA7114_VSCALE_LUMINA_OFFS0, SAA7114_VSCALE_PHO); saa7114_write_reg(SAA7114_VSCALE_LUMINA_OFFS1, SAA7114_VSCALE_PHO); saa7114_write_reg(SAA7114_VSCALE_LUMINA_OFFS2, (unsigned char)(SAA7114_VSCALE_PHO + scale / 64 - 16)); saa7114_write_reg(SAA7114_VSCALE_LUMINA_OFFS3, (unsigned char)(SAA7114_VSCALE_PHO + scale / 64 - 16)); /* RESTORE CONTRAST AND SATURATION FOR INTERPOLATION MODE */ saa7114_write_reg(SAA7114_FILTER_CONTRAST, (unsigned char)0x40); saa7114_write_reg(SAA7114_FILTER_SATURATION, (unsigned char)0x40); } else { /* USE ACCUMULATION MODE FOR DOWNSCALING BY MORE THAN 2x */ saa7114_write_reg(SAA7114_VSCALE_CONTROL, 0x01); /* SET VERTICAL PHASE OFFSETS OFF (OPTIMISATION) */ saa7114_write_reg(SAA7114_VSCALE_CHROMA_OFFS0, 0x00); saa7114_write_reg(SAA7114_VSCALE_CHROMA_OFFS1, 0x00); saa7114_write_reg(SAA7114_VSCALE_CHROMA_OFFS2, 0x00); saa7114_write_reg(SAA7114_VSCALE_CHROMA_OFFS3, 0x00); saa7114_write_reg(SAA7114_VSCALE_LUMINA_OFFS0, 0x00); saa7114_write_reg(SAA7114_VSCALE_LUMINA_OFFS1, 0x00); saa7114_write_reg(SAA7114_VSCALE_LUMINA_OFFS2, 0x00); saa7114_write_reg(SAA7114_VSCALE_LUMINA_OFFS3, 0x00); /* ADJUST CONTRAST AND SATURATION FOR ACCUMULATION MODE */ if (srch) scale = (64 * dsth) / srch; saa7114_write_reg(SAA7114_FILTER_CONTRAST, (unsigned char)scale); saa7114_write_reg(SAA7114_FILTER_SATURATION, (unsigned char)scale); } gfx_decoder_software_reset(); return (0); } /*---------------------------------------------------------------------------- * gfx_set_decoder_vbi_format * * This routine programs the decoder to produce the specified format of VBI * data for the specified lines. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_vbi_format(int start, int end, int format) #else int gfx_set_decoder_vbi_format(int start, int end, int format) #endif { int i; unsigned char data; for (i = start; i <= end; i++) { switch (format) { case VBI_FORMAT_VIDEO: data = 0xFF; break; /* Active video */ case VBI_FORMAT_RAW: data = 0x77; break; /* Raw VBI data */ case VBI_FORMAT_CC: data = 0x55; break; /* US CC */ case VBI_FORMAT_NABTS: data = 0xCC; break; /* US NABTS */ default: return GFX_STATUS_BAD_PARAMETER; } saa7114_write_reg((unsigned char)(0x3F + i), data); } return GFX_STATUS_OK; } /*---------------------------------------------------------------------------- * gfx_set_decoder_vbi_enable * * This routine enables or disables VBI transfer in the decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_vbi_enable(int enable) #else int gfx_set_decoder_vbi_enable(int enable) #endif { unsigned char data; saa7114_read_reg(SAA7114_IPORT_CONTROL, &data); if (enable) data |= 0x80; else data &= ~0x80; saa7114_write_reg(SAA7114_IPORT_CONTROL, data); return GFX_STATUS_OK; } /*---------------------------------------------------------------------------- * gfx_set_decoder_TV_standard * * This routine configures the decoder for the required TV standard. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_TV_standard(TVStandardType TVStandard) #else int gfx_set_decoder_TV_standard(TVStandardType TVStandard) #endif { switch (TVStandard) { case TV_STANDARD_NTSC: saa7114_write_reg(0x0E, 0x89); saa7114_write_reg(0x5A, 0x06); break; case TV_STANDARD_PAL: saa7114_write_reg(0x0E, 0x81); saa7114_write_reg(0x5A, 0x03); break; default: return GFX_STATUS_BAD_PARAMETER; } gfx_decoder_software_reset(); return GFX_STATUS_OK; } /*---------------------------------------------------------------------------- * gfx_set_decoder_luminance_filter * * This routine sets the hue control of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_set_decoder_luminance_filter(unsigned char lufi) #else int gfx_set_decoder_luminance_filter(unsigned char lufi) #endif { unsigned char data; saa7114_read_reg(SAA7114_LUMINANCE_CONTROL, &data); saa7114_write_reg(SAA7114_LUMINANCE_CONTROL, (unsigned char)((data & ~0x0F) | (lufi & 0x0F))); return (0); } /*************************************************************/ /* READ ROUTINES | INCLUDED FOR DIAGNOSTIC PURPOSES ONLY */ /*************************************************************/ #if GFX_READ_ROUTINES /*---------------------------------------------------------------------------- * gfx_get_decoder_brightness * * This routine returns the current brightness of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC unsigned char saa7114_get_decoder_brightness(void) #else unsigned char gfx_get_decoder_brightness(void) #endif { unsigned char brightness = 0; saa7114_read_reg(SAA7114_BRIGHTNESS, &brightness); return (brightness); } /*---------------------------------------------------------------------------- * gfx_get_decoder_contrast * * This routine returns the current contrast of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC unsigned char saa7114_get_decoder_contrast(void) #else unsigned char gfx_get_decoder_contrast(void) #endif { unsigned char contrast = 0; saa7114_read_reg(SAA7114_CONTRAST, &contrast); contrast <<= 1; return (contrast); } /*---------------------------------------------------------------------------- * gfx_get_decoder_hue * * This routine returns the current hue of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC char saa7114_get_decoder_hue(void) #else char gfx_get_decoder_hue(void) #endif { unsigned char hue = 0; saa7114_read_reg(SAA7114_HUE, &hue); return ((char)hue); } /*---------------------------------------------------------------------------- * gfx_get_decoder_saturation * * This routine returns the current saturation of the video decoder. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC unsigned char saa7114_get_decoder_saturation(void) #else unsigned char gfx_get_decoder_saturation(void) #endif { unsigned char saturation = 0; saa7114_read_reg(SAA7114_SATURATION, &saturation); saturation <<= 1; return (saturation); } /*---------------------------------------------------------------------------- * gfx_get_decoder_input_offset * * This routine returns the offset into the input window. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC unsigned long saa7114_get_decoder_input_offset(void) #else unsigned long gfx_get_decoder_input_offset(void) #endif { unsigned long value = 0; unsigned char data; saa7114_read_reg(SAA7114_HORZ_OFFSET_LO, &data); value = (unsigned long)data; saa7114_read_reg(SAA7114_HORZ_OFFSET_HI, &data); value |= ((unsigned long)data) << 8; saa7114_read_reg(SAA7114_VERT_OFFSET_LO, &data); value |= ((unsigned long)data) << 16; saa7114_read_reg(SAA7114_VERT_OFFSET_HI, &data); value |= ((unsigned long)data) << 24; return (value); } /*---------------------------------------------------------------------------- * gfx_get_decoder_input_size * * This routine returns the current size of the input window *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC unsigned long saa7114_get_decoder_input_size(void) #else unsigned long gfx_get_decoder_input_size(void) #endif { unsigned long value = 0; unsigned char data; saa7114_read_reg(SAA7114_HORZ_INPUT_LO, &data); value = (unsigned long)data; saa7114_read_reg(SAA7114_HORZ_INPUT_HI, &data); value |= ((unsigned long)data) << 8; saa7114_read_reg(SAA7114_VERT_INPUT_LO, &data); value |= ((unsigned long)data) << 17; saa7114_read_reg(SAA7114_VERT_INPUT_HI, &data); value |= ((unsigned long)data) << 25; return (value); } /*---------------------------------------------------------------------------- * gfx_get_decoder_output_size * * This routine returns the current size of the output window. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC unsigned long saa7114_get_decoder_output_size(void) #else unsigned long gfx_get_decoder_output_size(void) #endif { unsigned long value = 0; unsigned char data; saa7114_read_reg(SAA7114_HORZ_OUTPUT_LO, &data); value = (unsigned long)data; saa7114_read_reg(SAA7114_HORZ_OUTPUT_HI, &data); value |= ((unsigned long)data) << 8; saa7114_read_reg(SAA7114_VERT_OUTPUT_LO, &data); value |= ((unsigned long)data) << 17; saa7114_read_reg(SAA7114_VERT_OUTPUT_HI, &data); value |= ((unsigned long)data) << 25; return (value); } /*---------------------------------------------------------------------------- * gfx_get_decoder_vbi_format * * This routine returns the current format of VBI data for the specified line. *---------------------------------------------------------------------------- */ #if GFX_DECODER_DYNAMIC int saa7114_get_decoder_vbi_format(int line) #else int gfx_get_decoder_vbi_format(int line) #endif { unsigned char format = 0, data; saa7114_read_reg((unsigned char)(0x3F + line), &data); switch (data) { case 0xFF: format = VBI_FORMAT_VIDEO; break; /* Active video */ case 0x77: format = VBI_FORMAT_RAW; break; /* Raw VBI data */ case 0x55: format = VBI_FORMAT_CC; break; /* US CC */ case 0xCC: format = VBI_FORMAT_NABTS; break; /* US NABTS */ } return (format); } #endif /* GFX_READ_ROUTINES */ /* END OF FILE */