summaryrefslogtreecommitdiff
path: root/arch/arm/plat-stmp3xxx/include/mach/dma.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/plat-stmp3xxx/include/mach/dma.h')
-rw-r--r--arch/arm/plat-stmp3xxx/include/mach/dma.h153
1 files changed, 0 insertions, 153 deletions
diff --git a/arch/arm/plat-stmp3xxx/include/mach/dma.h b/arch/arm/plat-stmp3xxx/include/mach/dma.h
deleted file mode 100644
index 7c58557c6766..000000000000
--- a/arch/arm/plat-stmp3xxx/include/mach/dma.h
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * Freescale STMP37XX/STMP378X DMA helper interface
- *
- * Embedded Alley Solutions, Inc <source@embeddedalley.com>
- *
- * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
- */
-
-/*
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-#ifndef __ASM_PLAT_STMP3XXX_DMA_H
-#define __ASM_PLAT_STMP3XXX_DMA_H
-
-#include <linux/platform_device.h>
-#include <linux/dmapool.h>
-
-#if !defined(MAX_PIO_WORDS)
-#define MAX_PIO_WORDS (15)
-#endif
-
-#define STMP3XXX_BUS_APBH 0
-#define STMP3XXX_BUS_APBX 1
-#define STMP3XXX_DMA_MAX_CHANNEL 16
-#define STMP3XXX_DMA_BUS(dma) ((dma) / 16)
-#define STMP3XXX_DMA_CHANNEL(dma) ((dma) % 16)
-#define STMP3XXX_DMA(channel, bus) ((bus) * 16 + (channel))
-#define MAX_DMA_ADDRESS 0xffffffff
-#define MAX_DMA_CHANNELS 32
-
-struct stmp3xxx_dma_command {
- u32 next;
- u32 cmd;
- union {
- u32 buf_ptr;
- u32 alternate;
- };
- u32 pio_words[MAX_PIO_WORDS];
-};
-
-struct stmp3xxx_dma_descriptor {
- struct stmp3xxx_dma_command *command;
- dma_addr_t handle;
-
- /* The virtual address of the buffer pointer */
- void *virtual_buf_ptr;
- /* The next descriptor in a the DMA chain (optional) */
- struct stmp3xxx_dma_descriptor *next_descr;
-};
-
-struct stmp37xx_circ_dma_chain {
- unsigned total_count;
- struct stmp3xxx_dma_descriptor *chain;
-
- unsigned free_index;
- unsigned free_count;
- unsigned active_index;
- unsigned active_count;
- unsigned cooked_index;
- unsigned cooked_count;
-
- int bus;
- unsigned channel;
-};
-
-static inline struct stmp3xxx_dma_descriptor
- *stmp3xxx_dma_circ_get_free_head(struct stmp37xx_circ_dma_chain *chain)
-{
- return &(chain->chain[chain->free_index]);
-}
-
-static inline struct stmp3xxx_dma_descriptor
- *stmp3xxx_dma_circ_get_cooked_head(struct stmp37xx_circ_dma_chain *chain)
-{
- return &(chain->chain[chain->cooked_index]);
-}
-
-int stmp3xxx_dma_request(int ch, struct device *dev, const char *name);
-int stmp3xxx_dma_release(int ch);
-int stmp3xxx_dma_allocate_command(int ch,
- struct stmp3xxx_dma_descriptor *descriptor);
-int stmp3xxx_dma_free_command(int ch,
- struct stmp3xxx_dma_descriptor *descriptor);
-void stmp3xxx_dma_continue(int channel, u32 semaphore);
-void stmp3xxx_dma_go(int ch, struct stmp3xxx_dma_descriptor *head,
- u32 semaphore);
-int stmp3xxx_dma_running(int ch);
-int stmp3xxx_dma_make_chain(int ch, struct stmp37xx_circ_dma_chain *chain,
- struct stmp3xxx_dma_descriptor descriptors[],
- unsigned items);
-void stmp3xxx_dma_free_chain(struct stmp37xx_circ_dma_chain *chain);
-void stmp37xx_circ_clear_chain(struct stmp37xx_circ_dma_chain *chain);
-void stmp37xx_circ_advance_free(struct stmp37xx_circ_dma_chain *chain,
- unsigned count);
-void stmp37xx_circ_advance_active(struct stmp37xx_circ_dma_chain *chain,
- unsigned count);
-unsigned stmp37xx_circ_advance_cooked(struct stmp37xx_circ_dma_chain *chain);
-int stmp3xxx_dma_read_semaphore(int ch);
-void stmp3xxx_dma_init(void);
-void stmp3xxx_dma_set_alt_target(int ch, int target);
-void stmp3xxx_dma_suspend(void);
-void stmp3xxx_dma_resume(void);
-
-/*
- * STMP37xx and STMP378x have different DMA control
- * registers layout
- */
-
-void stmp3xxx_arch_dma_freeze(int ch);
-void stmp3xxx_arch_dma_unfreeze(int ch);
-void stmp3xxx_arch_dma_reset_channel(int ch);
-void stmp3xxx_arch_dma_enable_interrupt(int ch);
-void stmp3xxx_arch_dma_clear_interrupt(int ch);
-int stmp3xxx_arch_dma_is_interrupt(int ch);
-
-static inline void stmp3xxx_dma_reset_channel(int ch)
-{
- stmp3xxx_arch_dma_reset_channel(ch);
-}
-
-
-static inline void stmp3xxx_dma_freeze(int ch)
-{
- stmp3xxx_arch_dma_freeze(ch);
-}
-
-static inline void stmp3xxx_dma_unfreeze(int ch)
-{
- stmp3xxx_arch_dma_unfreeze(ch);
-}
-
-static inline void stmp3xxx_dma_enable_interrupt(int ch)
-{
- stmp3xxx_arch_dma_enable_interrupt(ch);
-}
-
-static inline void stmp3xxx_dma_clear_interrupt(int ch)
-{
- stmp3xxx_arch_dma_clear_interrupt(ch);
-}
-
-static inline int stmp3xxx_dma_is_interrupt(int ch)
-{
- return stmp3xxx_arch_dma_is_interrupt(ch);
-}
-
-#endif /* __ASM_PLAT_STMP3XXX_DMA_H */