Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 218 insertions, 0 deletions

diff --git a/sound/oss/vidc_fill.S b/sound/oss/vidc_fill.S
new file mode 100644
index 00000000000..01ccc074cc1
--- /dev/null
+++ b/sound/oss/vidc_fill.S
@@ -0,0 +1,218 @@
+/*
+ *  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 <asm/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