#include "rpi-base.h" #include "defs.h" #include "macros.S" .text .global capture_line_fast_eightbits_8bpp .global capture_line_fast_ninebitslo_16bpp .global capture_line_fast_ninebitshi_16bpp .global capture_line_fast_twelvebits_16bpp // The capture line function is provided the following: // r0 = pointer to current line in frame buffer // r1 = number of complete psync cycles to capture (=param_chars_per_line) // r2 = frame buffer line pitch in bytes (=param_fb_pitch) // r3 = flags register // r4 = GPLEV0 constant // r5 = line number count down to 0 (initial value =param_nlines) // r6 = scan line count modulo 10 // r7 = number of psyncs to skip // r8 = frame buffer height (=param_fb_height) // // All registers are available as scratch registers (i.e. nothing needs to be preserved) .ltorg // *** 8 bit *** .align 6 b preload_capture_line_fast_eightbits_8bpp capture_line_fast_eightbits_8bpp: push {lr} SETUP_VSYNC_DEBUG_R11_R12 SKIP_PSYNC_NO_OLD_CPLD_HIGH_LATENCY mov r1, r1, lsr #3 SETUP_EIGHT_BITS_MASK_R14 loop_8bpp: WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_EIGHT_BITS_8BPP_0 r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_EIGHT_BITS_8BPP_1 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_EIGHT_BITS_8BPP_2 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_EIGHT_BITS_8BPP_3 r5 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_EIGHT_BITS_8BPP_0 r12 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_EIGHT_BITS_8BPP_1 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_EIGHT_BITS_8BPP_2 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_EIGHT_BITS_8BPP_3 r6 // input in r8 stmia r0!, {r5, r6} subs r1, r1, #1 bne loop_8bpp pop {r0, pc} preload_capture_line_fast_eightbits_8bpp: SETUP_DUMMY_PARAMETERS b capture_line_fast_eightbits_8bpp .ltorg .align 6 // *** 16 bit *** b preload_capture_line_fast_twelvebits_16bpp capture_line_fast_twelvebits_16bpp: push {lr} SETUP_VSYNC_DEBUG_16BPP_R11 tst r3, #BITDUP_ENABLE_FFOSD | BITDUP_ENABLE_GREY_DETECT bne TEST_capture_line_fast_twelvebits_16bpp SKIP_PSYNC_NO_OLD_CPLD_HIGH_LATENCY mov r1, r1, lsr #3 SETUP_TWELVE_BITS_MASK_R14 loop_16bpp: WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_TWELVE_BITS_16BPP_HI r5 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_TWELVE_BITS_16BPP_HI r6 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_TWELVE_BITS_16BPP_HI r7 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_TWELVE_BITS_16BPP_HI r10 // input in r8 stmia r0!, {r5, r6, r7, r10} subs r1, r1, #1 bne loop_16bpp pop {r0, pc} TEST_capture_line_fast_twelvebits_16bpp: tst r3, #BIT_OSD | BITDUP_ENABLE_GREY_DETECT bne OSD_capture_line_fast_twelvebits_16bpp SKIP_PSYNC_NO_OLD_CPLD_HIGH_LATENCY mov r1, r1, lsr #3 SETUP_TWELVE_BITS_MASK_R14 TEST_loop_16bpp: WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 TEST_CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 TEST_CAPTURE_TWELVE_BITS_16BPP_HI r5 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 TEST_CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 TEST_CAPTURE_TWELVE_BITS_16BPP_HI r6 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 TEST_CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 TEST_CAPTURE_TWELVE_BITS_16BPP_HI r7 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 TEST_CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 TEST_CAPTURE_TWELVE_BITS_16BPP_HI r10 // input in r8 stmia r0!, {r5, r6, r7, r10} subs r1, r1, #1 bne TEST_loop_16bpp pop {r0, pc} OSD_capture_line_fast_twelvebits_16bpp: tst r3, #BITDUP_ENABLE_GREY_DETECT orrne r3, r3, #BITDUP_LINE_CONDITION_DETECTED SKIP_PSYNC_NO_OLD_CPLD_HIGH_LATENCY mov r1, r1, lsr #3 SETUP_TWELVE_BITS_MASK_R14 OSD_loop_16bpp: WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 OSD_CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 OSD_CAPTURE_TWELVE_BITS_16BPP_HI r5 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 OSD_CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 OSD_CAPTURE_TWELVE_BITS_16BPP_HI r6 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 OSD_CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 OSD_CAPTURE_TWELVE_BITS_16BPP_HI r7 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 OSD_CAPTURE_TWELVE_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 OSD_CAPTURE_TWELVE_BITS_16BPP_HI r10 // input in r8 stmia r0!, {r5, r6, r7, r10} subs r1, r1, #1 bne OSD_loop_16bpp pop {r0, pc} preload_capture_line_fast_twelvebits_16bpp: SETUP_DUMMY_PARAMETERS b capture_line_fast_twelvebits_16bpp .ltorg .align 6 // *** 16 bit *** b preload_capture_line_fast_ninebitslo_16bpp capture_line_fast_ninebitslo_16bpp: push {lr} SETUP_VSYNC_DEBUG_16BPP_R11 SKIP_PSYNC_NO_OLD_CPLD_HIGH_LATENCY mov r1, r1, lsr #3 SETUP_NINELO_BITS_MASK_R14 loop_16lobpp: WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINELO_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINELO_BITS_16BPP_HI r5 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINELO_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINELO_BITS_16BPP_HI r6 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINELO_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINELO_BITS_16BPP_HI r7 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINELO_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINELO_BITS_16BPP_HI r10 // input in r8 stmia r0!, {r5, r6, r7, r10} subs r1, r1, #1 bne loop_16lobpp pop {r0, pc} preload_capture_line_fast_ninebitslo_16bpp: SETUP_DUMMY_PARAMETERS b capture_line_fast_ninebitslo_16bpp .ltorg .align 6 // *** 16 bit *** b preload_capture_line_fast_ninebitshi_16bpp capture_line_fast_ninebitshi_16bpp: push {lr} SETUP_VSYNC_DEBUG_16BPP_R11 SKIP_PSYNC_NO_OLD_CPLD_HIGH_LATENCY mov r1, r1, lsr #3 SETUP_NINEHI_BITS_MASK_R14 loop_16hibpp: WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINEHI_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINEHI_BITS_16BPP_HI r5 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINEHI_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINEHI_BITS_16BPP_HI r6 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINEHI_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINEHI_BITS_16BPP_HI r7 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINEHI_BITS_16BPP_LO r11 // input in r8 WAIT_FOR_PSYNC_EDGE_FAST // expects GPLEV0 in r4, result in r8 CAPTURE_NINEHI_BITS_16BPP_HI r10 // input in r8 stmia r0!, {r5, r6, r7, r10} subs r1, r1, #1 bne loop_16hibpp pop {r0, pc} preload_capture_line_fast_ninebitshi_16bpp: SETUP_DUMMY_PARAMETERS b capture_line_fast_ninebitshi_16bpp