diff options
Diffstat (limited to 'sound/oss/vidc_fill.S')
| -rw-r--r-- | sound/oss/vidc_fill.S | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/sound/oss/vidc_fill.S b/sound/oss/vidc_fill.S deleted file mode 100644 index bed34921d176..000000000000 --- a/sound/oss/vidc_fill.S +++ /dev/null @@ -1,218 +0,0 @@ -/* - * linux/drivers/sound/vidc_fill.S - * - * Copyright (C) 1997 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Filler routines for DMA buffers - */ -#include <linux/linkage.h> -#include <asm/assembler.h> -#include <mach/hardware.h> -#include <asm/hardware/iomd.h> - - .text - -ENTRY(vidc_fill_1x8_u) - mov ip, #0xff00 -1: cmp r0, r1 - bge vidc_clear - ldrb r4, [r0], #1 - eor r4, r4, #0x80 - and r4, ip, r4, lsl #8 - orr r4, r4, r4, lsl #16 - str r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_2x8_u) - mov ip, #0xff00 -1: cmp r0, r1 - bge vidc_clear - ldr r4, [r0], #2 - and r5, r4, ip - and r4, ip, r4, lsl #8 - orr r4, r4, r5, lsl #16 - orr r4, r4, r4, lsr #8 - str r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_1x8_s) - mov ip, #0xff00 -1: cmp r0, r1 - bge vidc_clear - ldrb r4, [r0], #1 - and r4, ip, r4, lsl #8 - orr r4, r4, r4, lsl #16 - str r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_2x8_s) - mov ip, #0xff00 -1: cmp r0, r1 - bge vidc_clear - ldr r4, [r0], #2 - and r5, r4, ip - and r4, ip, r4, lsl #8 - orr r4, r4, r5, lsl #16 - orr r4, r4, r4, lsr #8 - str r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_1x16_s) - mov ip, #0xff00 - orr ip, ip, ip, lsr #8 -1: cmp r0, r1 - bge vidc_clear - ldr r5, [r0], #2 - and r4, r5, ip - orr r4, r4, r4, lsl #16 - str r4, [r2], #4 - cmp r0, r1 - addlt r0, r0, #2 - andlt r4, r5, ip, lsl #16 - orrlt r4, r4, r4, lsr #16 - strlt r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_2x16_s) - mov ip, #0xff00 - orr ip, ip, ip, lsr #8 -1: cmp r0, r1 - bge vidc_clear - ldr r4, [r0], #4 - str r4, [r2], #4 - cmp r0, r1 - ldrlt r4, [r0], #4 - strlt r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_noaudio) - mov r0, #0 - mov r1, #0 -2: mov r4, #0 - mov r5, #0 -1: cmp r2, r3 - stmltia r2!, {r0, r1, r4, r5} - blt 1b - mov pc, lr - -ENTRY(vidc_clear) - mov r0, #0 - mov r1, #0 - tst r2, #4 - str r0, [r2], #4 - tst r2, #8 - stmia r2!, {r0, r1} - b 2b - -/* - * Call filler routines with: - * r0 = phys address - * r1 = phys end - * r2 = buffer - * Returns: - * r0 = new buffer address - * r2 = new buffer finish - * r4 = corrupted - * r5 = corrupted - * ip = corrupted - */ - -ENTRY(vidc_sound_dma_irq) - stmfd sp!, {r4 - r8, lr} - ldr r8, =dma_start - ldmia r8, {r0, r1, r2, r3, r4, r5} - teq r1, #0 - adreq r4, vidc_fill_noaudio - moveq r7, #1 << 31 - movne r7, #0 - mov ip, #IOMD_BASE & 0xff000000 - orr ip, ip, #IOMD_BASE & 0x00ff0000 - ldrb r6, [ip, #IOMD_SD0ST] - tst r6, #DMA_ST_OFL @ Check for overrun - eorne r6, r6, #DMA_ST_AB - tst r6, #DMA_ST_AB - moveq r2, r3 @ DMAing A, update B - add r3, r2, r5 @ End of DMA buffer - add r1, r1, r0 @ End of virtual DMA buffer - mov lr, pc - mov pc, r4 @ Call fill routine (uses r4, ip) - sub r1, r1, r0 @ Remaining length - stmia r8, {r0, r1} - mov r0, #0 - tst r2, #4 @ Round buffer up to 4 words - strne r0, [r2], #4 - tst r2, #8 - strne r0, [r2], #4 - strne r0, [r2], #4 - sub r2, r2, #16 - mov r2, r2, lsl #20 - movs r2, r2, lsr #20 - orreq r2, r2, #1 << 30 @ Set L bit - orr r2, r2, r7 - ldmdb r8, {r3, r4, r5} - tst r6, #DMA_ST_AB - mov ip, #IOMD_BASE & 0xff000000 - orr ip, ip, #IOMD_BASE & 0x00ff0000 - streq r4, [ip, #IOMD_SD0CURB] - strne r5, [ip, #IOMD_SD0CURA] - streq r2, [ip, #IOMD_SD0ENDB] - strne r2, [ip, #IOMD_SD0ENDA] - ldr lr, [ip, #IOMD_SD0ST] - tst lr, #DMA_ST_OFL - bne 1f - tst r6, #DMA_ST_AB - strne r4, [ip, #IOMD_SD0CURB] - streq r5, [ip, #IOMD_SD0CURA] - strne r2, [ip, #IOMD_SD0ENDB] - streq r2, [ip, #IOMD_SD0ENDA] -1: teq r7, #0 - mov r0, #0x10 - strneb r0, [ip, #IOMD_SD0CR] - ldmfd sp!, {r4 - r8, lr} - mov r0, #1 @ IRQ_HANDLED - teq r1, #0 @ If we have no more - movne pc, lr - teq r3, #0 - movne pc, r3 @ Call interrupt routine - mov pc, lr - - .data - .globl dma_interrupt -dma_interrupt: - .long 0 @ r3 - .globl dma_pbuf -dma_pbuf: - .long 0 @ r4 - .long 0 @ r5 - .globl dma_start -dma_start: - .long 0 @ r0 - .globl dma_count -dma_count: - .long 0 @ r1 - .globl dma_buf -dma_buf: - .long 0 @ r2 - .long 0 @ r3 - .globl vidc_filler -vidc_filler: - .long vidc_fill_noaudio @ r4 - .globl dma_bufsize -dma_bufsize: - .long 0x1000 @ r5 |