Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 389 deletions

diff --git a/ANDROID_3.4.5/arch/arm/mach-rpc/dma.c b/ANDROID_3.4.5/arch/arm/mach-rpc/dma.c
deleted file mode 100644
index 85883b2e..00000000
--- a/ANDROID_3.4.5/arch/arm/mach-rpc/dma.c
+++ /dev/null
@@ -1,389 +0,0 @@
-/*
- *  linux/arch/arm/mach-rpc/dma.c
- *
- *  Copyright (C) 1998 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.
- *
- *  DMA functions specific to RiscPC architecture
- */
-#include <linux/mman.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/dma-mapping.h>
-#include <linux/io.h>
-
-#include <asm/page.h>
-#include <asm/dma.h>
-#include <asm/fiq.h>
-#include <asm/irq.h>
-#include <mach/hardware.h>
-#include <asm/uaccess.h>
-
-#include <asm/mach/dma.h>
-#include <asm/hardware/iomd.h>
-
-struct iomd_dma {
-	struct dma_struct	dma;
-	unsigned int		state;
-	unsigned long		base;		/* Controller base address */
-	int			irq;		/* Controller IRQ */
-	struct scatterlist	cur_sg;		/* Current controller buffer */
-	dma_addr_t		dma_addr;
-	unsigned int		dma_len;
-};
-
-#if 0
-typedef enum {
-	dma_size_8	= 1,
-	dma_size_16	= 2,
-	dma_size_32	= 4,
-	dma_size_128	= 16
-} dma_size_t;
-#endif
-
-#define TRANSFER_SIZE	2
-
-#define CURA	(0)
-#define ENDA	(IOMD_IO0ENDA - IOMD_IO0CURA)
-#define CURB	(IOMD_IO0CURB - IOMD_IO0CURA)
-#define ENDB	(IOMD_IO0ENDB - IOMD_IO0CURA)
-#define CR	(IOMD_IO0CR - IOMD_IO0CURA)
-#define ST	(IOMD_IO0ST - IOMD_IO0CURA)
-
-static void iomd_get_next_sg(struct scatterlist *sg, struct iomd_dma *idma)
-{
-	unsigned long end, offset, flags = 0;
-
-	if (idma->dma.sg) {
-		sg->dma_address = idma->dma_addr;
-		offset = sg->dma_address & ~PAGE_MASK;
-
-		end = offset + idma->dma_len;
-
-		if (end > PAGE_SIZE)
-			end = PAGE_SIZE;
-
-		if (offset + TRANSFER_SIZE >= end)
-			flags |= DMA_END_L;
-
-		sg->length = end - TRANSFER_SIZE;
-
-		idma->dma_len -= end - offset;
-		idma->dma_addr += end - offset;
-
-		if (idma->dma_len == 0) {
-			if (idma->dma.sgcount > 1) {
-				idma->dma.sg = sg_next(idma->dma.sg);
-				idma->dma_addr = idma->dma.sg->dma_address;
-				idma->dma_len = idma->dma.sg->length;
-				idma->dma.sgcount--;
-			} else {
-				idma->dma.sg = NULL;
-				flags |= DMA_END_S;
-			}
-		}
-	} else {
-		flags = DMA_END_S | DMA_END_L;
-		sg->dma_address = 0;
-		sg->length = 0;
-	}
-
-	sg->length |= flags;
-}
-
-static irqreturn_t iomd_dma_handle(int irq, void *dev_id)
-{
-	struct iomd_dma *idma = dev_id;
-	unsigned long base = idma->base;
-
-	do {
-		unsigned int status;
-
-		status = iomd_readb(base + ST);
-		if (!(status & DMA_ST_INT))
-			return IRQ_HANDLED;
-
-		if ((idma->state ^ status) & DMA_ST_AB)
-			iomd_get_next_sg(&idma->cur_sg, idma);
-
-		switch (status & (DMA_ST_OFL | DMA_ST_AB)) {
-		case DMA_ST_OFL:			/* OIA */
-		case DMA_ST_AB:				/* .IB */
-			iomd_writel(idma->cur_sg.dma_address, base + CURA);
-			iomd_writel(idma->cur_sg.length, base + ENDA);
-			idma->state = DMA_ST_AB;
-			break;
-
-		case DMA_ST_OFL | DMA_ST_AB:		/* OIB */
-		case 0:					/* .IA */
-			iomd_writel(idma->cur_sg.dma_address, base + CURB);
-			iomd_writel(idma->cur_sg.length, base + ENDB);
-			idma->state = 0;
-			break;
-		}
-
-		if (status & DMA_ST_OFL &&
-		    idma->cur_sg.length == (DMA_END_S|DMA_END_L))
-			break;
-	} while (1);
-
-	idma->state = ~DMA_ST_AB;
-	disable_irq(irq);
-
-	return IRQ_HANDLED;
-}
-
-static int iomd_request_dma(unsigned int chan, dma_t *dma)
-{
-	struct iomd_dma *idma = container_of(dma, struct iomd_dma, dma);
-
-	return request_irq(idma->irq, iomd_dma_handle,
-			   IRQF_DISABLED, idma->dma.device_id, idma);
-}
-
-static void iomd_free_dma(unsigned int chan, dma_t *dma)
-{
-	struct iomd_dma *idma = container_of(dma, struct iomd_dma, dma);
-
-	free_irq(idma->irq, idma);
-}
-
-static void iomd_enable_dma(unsigned int chan, dma_t *dma)
-{
-	struct iomd_dma *idma = container_of(dma, struct iomd_dma, dma);
-	unsigned long dma_base = idma->base;
-	unsigned int ctrl = TRANSFER_SIZE | DMA_CR_E;
-
-	if (idma->dma.invalid) {
-		idma->dma.invalid = 0;
-
-		/*
-		 * Cope with ISA-style drivers which expect cache
-		 * coherence.
-		 */
-		if (!idma->dma.sg) {
-			idma->dma.sg = &idma->dma.buf;
-			idma->dma.sgcount = 1;
-			idma->dma.buf.length = idma->dma.count;
-			idma->dma.buf.dma_address = dma_map_single(NULL,
-				idma->dma.addr, idma->dma.count,
-				idma->dma.dma_mode == DMA_MODE_READ ?
-				DMA_FROM_DEVICE : DMA_TO_DEVICE);
-		}
-
-		iomd_writeb(DMA_CR_C, dma_base + CR);
-		idma->state = DMA_ST_AB;
-	}
-
-	if (idma->dma.dma_mode == DMA_MODE_READ)
-		ctrl |= DMA_CR_D;
-
-	iomd_writeb(ctrl, dma_base + CR);
-	enable_irq(idma->irq);
-}
-
-static void iomd_disable_dma(unsigned int chan, dma_t *dma)
-{
-	struct iomd_dma *idma = container_of(dma, struct iomd_dma, dma);
-	unsigned long dma_base = idma->base;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	if (idma->state != ~DMA_ST_AB)
-		disable_irq(idma->irq);
-	iomd_writeb(0, dma_base + CR);
-	local_irq_restore(flags);
-}
-
-static int iomd_set_dma_speed(unsigned int chan, dma_t *dma, int cycle)
-{
-	int tcr, speed;
-
-	if (cycle < 188)
-		speed = 3;
-	else if (cycle <= 250)
-		speed = 2;
-	else if (cycle < 438)
-		speed = 1;
-	else
-		speed = 0;
-
-	tcr = iomd_readb(IOMD_DMATCR);
-	speed &= 3;
-
-	switch (chan) {
-	case DMA_0:
-		tcr = (tcr & ~0x03) | speed;
-		break;
-
-	case DMA_1:
-		tcr = (tcr & ~0x0c) | (speed << 2);
-		break;
-
-	case DMA_2:
-		tcr = (tcr & ~0x30) | (speed << 4);
-		break;
-
-	case DMA_3:
-		tcr = (tcr & ~0xc0) | (speed << 6);
-		break;
-
-	default:
-		break;
-	}
-
-	iomd_writeb(tcr, IOMD_DMATCR);
-
-	return speed;
-}
-
-static struct dma_ops iomd_dma_ops = {
-	.type		= "IOMD",
-	.request	= iomd_request_dma,
-	.free		= iomd_free_dma,
-	.enable		= iomd_enable_dma,
-	.disable	= iomd_disable_dma,
-	.setspeed	= iomd_set_dma_speed,
-};
-
-static struct fiq_handler fh = {
-	.name	= "floppydma"
-};
-
-struct floppy_dma {
-	struct dma_struct	dma;
-	unsigned int		fiq;
-};
-
-static void floppy_enable_dma(unsigned int chan, dma_t *dma)
-{
-	struct floppy_dma *fdma = container_of(dma, struct floppy_dma, dma);
-	void *fiqhandler_start;
-	unsigned int fiqhandler_length;
-	struct pt_regs regs;
-
-	if (fdma->dma.sg)
-		BUG();
-
-	if (fdma->dma.dma_mode == DMA_MODE_READ) {
-		extern unsigned char floppy_fiqin_start, floppy_fiqin_end;
-		fiqhandler_start = &floppy_fiqin_start;
-		fiqhandler_length = &floppy_fiqin_end - &floppy_fiqin_start;
-	} else {
-		extern unsigned char floppy_fiqout_start, floppy_fiqout_end;
-		fiqhandler_start = &floppy_fiqout_start;
-		fiqhandler_length = &floppy_fiqout_end - &floppy_fiqout_start;
-	}
-
-	regs.ARM_r9  = fdma->dma.count;
-	regs.ARM_r10 = (unsigned long)fdma->dma.addr;
-	regs.ARM_fp  = (unsigned long)FLOPPYDMA_BASE;
-
-	if (claim_fiq(&fh)) {
-		printk("floppydma: couldn't claim FIQ.\n");
-		return;
-	}
-
-	set_fiq_handler(fiqhandler_start, fiqhandler_length);
-	set_fiq_regs(&regs);
-	enable_fiq(fdma->fiq);
-}
-
-static void floppy_disable_dma(unsigned int chan, dma_t *dma)
-{
-	struct floppy_dma *fdma = container_of(dma, struct floppy_dma, dma);
-	disable_fiq(fdma->fiq);
-	release_fiq(&fh);
-}
-
-static int floppy_get_residue(unsigned int chan, dma_t *dma)
-{
-	struct pt_regs regs;
-	get_fiq_regs(&regs);
-	return regs.ARM_r9;
-}
-
-static struct dma_ops floppy_dma_ops = {
-	.type		= "FIQDMA",
-	.enable		= floppy_enable_dma,
-	.disable	= floppy_disable_dma,
-	.residue	= floppy_get_residue,
-};
-
-/*
- * This is virtual DMA - we don't need anything here.
- */
-static void sound_enable_disable_dma(unsigned int chan, dma_t *dma)
-{
-}
-
-static struct dma_ops sound_dma_ops = {
-	.type		= "VIRTUAL",
-	.enable		= sound_enable_disable_dma,
-	.disable	= sound_enable_disable_dma,
-};
-
-static struct iomd_dma iomd_dma[6];
-
-static struct floppy_dma floppy_dma = {
-	.dma		= {
-		.d_ops	= &floppy_dma_ops,
-	},
-	.fiq		= FIQ_FLOPPYDATA,
-};
-
-static dma_t sound_dma = {
-	.d_ops		= &sound_dma_ops,
-};
-
-static int __init rpc_dma_init(void)
-{
-	unsigned int i;
-	int ret;
-
-	iomd_writeb(0, IOMD_IO0CR);
-	iomd_writeb(0, IOMD_IO1CR);
-	iomd_writeb(0, IOMD_IO2CR);
-	iomd_writeb(0, IOMD_IO3CR);
-
-	iomd_writeb(0xa0, IOMD_DMATCR);
-
-	/*
-	 * Setup DMA channels 2,3 to be for podules
-	 * and channels 0,1 for internal devices
-	 */
-	iomd_writeb(DMA_EXT_IO3|DMA_EXT_IO2, IOMD_DMAEXT);
-
-	iomd_dma[DMA_0].base	= IOMD_IO0CURA;
-	iomd_dma[DMA_0].irq	= IRQ_DMA0;
-	iomd_dma[DMA_1].base	= IOMD_IO1CURA;
-	iomd_dma[DMA_1].irq	= IRQ_DMA1;
-	iomd_dma[DMA_2].base	= IOMD_IO2CURA;
-	iomd_dma[DMA_2].irq	= IRQ_DMA2;
-	iomd_dma[DMA_3].base	= IOMD_IO3CURA;
-	iomd_dma[DMA_3].irq	= IRQ_DMA3;
-	iomd_dma[DMA_S0].base	= IOMD_SD0CURA;
-	iomd_dma[DMA_S0].irq	= IRQ_DMAS0;
-	iomd_dma[DMA_S1].base	= IOMD_SD1CURA;
-	iomd_dma[DMA_S1].irq	= IRQ_DMAS1;
-
-	for (i = DMA_0; i <= DMA_S1; i++) {
-		iomd_dma[i].dma.d_ops = &iomd_dma_ops;
-
-		ret = isa_dma_add(i, &iomd_dma[i].dma);
-		if (ret)
-			printk("IOMDDMA%u: unable to register: %d\n", i, ret);
-	}
-
-	ret = isa_dma_add(DMA_VIRTUAL_FLOPPY, &floppy_dma.dma);
-	if (ret)
-		printk("IOMDFLOPPY: unable to register: %d\n", ret);
-	ret = isa_dma_add(DMA_VIRTUAL_SOUND, &sound_dma);
-	if (ret)
-		printk("IOMDSOUND: unable to register: %d\n", ret);
-	return 0;
-}
-core_initcall(rpc_dma_init);