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Diffstat (limited to 'include/linux/omap-dma.h')
-rw-r--r--include/linux/omap-dma.h123
1 files changed, 42 insertions, 81 deletions
diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h
index 7af25a9c9c51..6f6c31e3fb93 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -1,24 +1,6 @@
-/*
- * OMAP DMA Engine support
- *
- * 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.
- */
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_OMAP_DMA_H
#define __LINUX_OMAP_DMA_H
-
-struct dma_chan;
-
-#if defined(CONFIG_DMA_OMAP) || defined(CONFIG_DMA_OMAP_MODULE)
-bool omap_dma_filter_fn(struct dma_chan *, void *);
-#else
-static inline bool omap_dma_filter_fn(struct dma_chan *c, void *d)
-{
- return false;
-}
-#endif
-
/*
* Legacy OMAP DMA handling defines and functions
*
@@ -34,7 +16,7 @@ static inline bool omap_dma_filter_fn(struct dma_chan *c, void *d)
#include <linux/platform_device.h>
-#define INT_DMA_LCD 25
+#define INT_DMA_LCD (NR_IRQS_LEGACY + 25)
#define OMAP1_DMA_TOUT_IRQ (1 << 0)
#define OMAP_DMA_DROP_IRQ (1 << 1)
@@ -256,9 +238,6 @@ struct omap_dma_lch {
void (*callback)(int lch, u16 ch_status, void *data);
void *data;
long flags;
- /* required for Dynamic chaining */
- int prev_linked_ch;
- int next_linked_ch;
int state;
int chain_id;
int status;
@@ -268,19 +247,38 @@ struct omap_dma_dev_attr {
u32 dev_caps;
u16 lch_count;
u16 chan_count;
- struct omap_dma_lch *chan;
};
+enum {
+ OMAP_DMA_REG_NONE,
+ OMAP_DMA_REG_16BIT,
+ OMAP_DMA_REG_2X16BIT,
+ OMAP_DMA_REG_32BIT,
+};
+
+struct omap_dma_reg {
+ u16 offset;
+ u8 stride;
+ u8 type;
+};
+
+#define SDMA_FILTER_PARAM(hw_req) ((int[]) { (hw_req) })
+struct dma_slave_map;
+
/* System DMA platform data structure */
struct omap_system_dma_plat_info {
+ const struct omap_dma_reg *reg_map;
+ unsigned channel_stride;
struct omap_dma_dev_attr *dma_attr;
u32 errata;
- void (*disable_irq_lch)(int lch);
void (*show_dma_caps)(void);
void (*clear_lch_regs)(int lch);
void (*clear_dma)(int lch);
void (*dma_write)(u32 val, int reg, int lch);
u32 (*dma_read)(int reg, int lch);
+
+ const struct dma_slave_map *slave_map;
+ int slavecnt;
};
#ifdef CONFIG_ARCH_OMAP2PLUS
@@ -289,31 +287,38 @@ struct omap_system_dma_plat_info {
#define dma_omap2plus() 0
#endif
#define dma_omap1() (!dma_omap2plus())
-#define dma_omap15xx() ((dma_omap1() && (d->dev_caps & ENABLE_1510_MODE)))
-#define dma_omap16xx() ((dma_omap1() && (d->dev_caps & ENABLE_16XX_MODE)))
+#define __dma_omap15xx(d) (dma_omap1() && (d)->dev_caps & ENABLE_1510_MODE)
+#define __dma_omap16xx(d) (dma_omap1() && (d)->dev_caps & ENABLE_16XX_MODE)
+#define dma_omap15xx() __dma_omap15xx(d)
+#define dma_omap16xx() __dma_omap16xx(d)
+
+extern struct omap_system_dma_plat_info *omap_get_plat_info(void);
+#if defined(CONFIG_ARCH_OMAP1)
extern void omap_set_dma_priority(int lch, int dst_port, int priority);
+#else
+static inline void omap_set_dma_priority(int lch, int dst_port, int priority)
+{
+}
+#endif
+
extern int omap_request_dma(int dev_id, const char *dev_name,
void (*callback)(int lch, u16 ch_status, void *data),
void *data, int *dma_ch);
-extern void omap_enable_dma_irq(int ch, u16 irq_bits);
-extern void omap_disable_dma_irq(int ch, u16 irq_bits);
extern void omap_free_dma(int ch);
+#if IS_ENABLED(CONFIG_USB_OMAP)
+extern void omap_disable_dma_irq(int ch, u16 irq_bits);
extern void omap_start_dma(int lch);
extern void omap_stop_dma(int lch);
extern void omap_set_dma_transfer_params(int lch, int data_type,
int elem_count, int frame_count,
int sync_mode,
int dma_trigger, int src_or_dst_synch);
-extern void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode,
- u32 color);
-extern void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode);
extern void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode);
extern void omap_set_dma_src_params(int lch, int src_port, int src_amode,
unsigned long src_start,
int src_ei, int src_fi);
-extern void omap_set_dma_src_index(int lch, int eidx, int fidx);
extern void omap_set_dma_src_data_pack(int lch, int enable);
extern void omap_set_dma_src_burst_mode(int lch,
enum omap_dma_burst_mode burst_mode);
@@ -321,63 +326,19 @@ extern void omap_set_dma_src_burst_mode(int lch,
extern void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
unsigned long dest_start,
int dst_ei, int dst_fi);
-extern void omap_set_dma_dest_index(int lch, int eidx, int fidx);
extern void omap_set_dma_dest_data_pack(int lch, int enable);
extern void omap_set_dma_dest_burst_mode(int lch,
enum omap_dma_burst_mode burst_mode);
-extern void omap_set_dma_params(int lch,
- struct omap_dma_channel_params *params);
-
-extern void omap_dma_link_lch(int lch_head, int lch_queue);
-extern void omap_dma_unlink_lch(int lch_head, int lch_queue);
-
-extern int omap_set_dma_callback(int lch,
- void (*callback)(int lch, u16 ch_status, void *data),
- void *data);
extern dma_addr_t omap_get_dma_src_pos(int lch);
extern dma_addr_t omap_get_dma_dst_pos(int lch);
-extern void omap_clear_dma(int lch);
extern int omap_get_dma_active_status(int lch);
-extern int omap_dma_running(void);
-extern void omap_dma_set_global_params(int arb_rate, int max_fifo_depth,
- int tparams);
-extern int omap_dma_set_prio_lch(int lch, unsigned char read_prio,
- unsigned char write_prio);
-extern void omap_set_dma_dst_endian_type(int lch, enum end_type etype);
-extern void omap_set_dma_src_endian_type(int lch, enum end_type etype);
-extern int omap_get_dma_index(int lch, int *ei, int *fi);
-
-void omap_dma_global_context_save(void);
-void omap_dma_global_context_restore(void);
-
-extern void omap_dma_disable_irq(int lch);
-
-/* Chaining APIs */
-#ifndef CONFIG_ARCH_OMAP1
-extern int omap_request_dma_chain(int dev_id, const char *dev_name,
- void (*callback) (int lch, u16 ch_status,
- void *data),
- int *chain_id, int no_of_chans,
- int chain_mode,
- struct omap_dma_channel_params params);
-extern int omap_free_dma_chain(int chain_id);
-extern int omap_dma_chain_a_transfer(int chain_id, int src_start,
- int dest_start, int elem_count,
- int frame_count, void *callbk_data);
-extern int omap_start_dma_chain_transfers(int chain_id);
-extern int omap_stop_dma_chain_transfers(int chain_id);
-extern int omap_get_dma_chain_index(int chain_id, int *ei, int *fi);
-extern int omap_get_dma_chain_dst_pos(int chain_id);
-extern int omap_get_dma_chain_src_pos(int chain_id);
-
-extern int omap_modify_dma_chain_params(int chain_id,
- struct omap_dma_channel_params params);
-extern int omap_dma_chain_status(int chain_id);
#endif
-#if defined(CONFIG_ARCH_OMAP1) && defined(CONFIG_FB_OMAP)
-#include <mach/lcd_dma.h>
+extern int omap_dma_running(void);
+
+#if IS_ENABLED(CONFIG_FB_OMAP)
+extern int omap_lcd_dma_running(void);
#else
static inline int omap_lcd_dma_running(void)
{
generated by cgit (git 2.34.1) at 2025-12-25 03:50:02 +0000