diff options
Diffstat (limited to 'include/asm-cris/arch-v32/hwregs/dma.h')
| -rw-r--r-- | include/asm-cris/arch-v32/hwregs/dma.h | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/include/asm-cris/arch-v32/hwregs/dma.h b/include/asm-cris/arch-v32/hwregs/dma.h deleted file mode 100644 index 3ce322b5c73..00000000000 --- a/include/asm-cris/arch-v32/hwregs/dma.h +++ /dev/null @@ -1,127 +0,0 @@ -/* - * DMA C definitions and help macros - * - */ - -#ifndef dma_h -#define dma_h - -/* registers */ /* Really needed, since both are listed in sw.list? */ -#include "dma_defs.h" - - -/* descriptors */ - -// ------------------------------------------------------------ dma_descr_group -typedef struct dma_descr_group { - struct dma_descr_group *next; - unsigned eol : 1; - unsigned tol : 1; - unsigned bol : 1; - unsigned : 1; - unsigned intr : 1; - unsigned : 2; - unsigned en : 1; - unsigned : 7; - unsigned dis : 1; - unsigned md : 16; - struct dma_descr_group *up; - union { - struct dma_descr_context *context; - struct dma_descr_group *group; - } down; -} dma_descr_group; - -// ---------------------------------------------------------- dma_descr_context -typedef struct dma_descr_context { - struct dma_descr_context *next; - unsigned eol : 1; - unsigned : 3; - unsigned intr : 1; - unsigned : 1; - unsigned store_mode : 1; - unsigned en : 1; - unsigned : 7; - unsigned dis : 1; - unsigned md0 : 16; - unsigned md1; - unsigned md2; - unsigned md3; - unsigned md4; - struct dma_descr_data *saved_data; - char *saved_data_buf; -} dma_descr_context; - -// ------------------------------------------------------------- dma_descr_data -typedef struct dma_descr_data { - struct dma_descr_data *next; - char *buf; - unsigned eol : 1; - unsigned : 2; - unsigned out_eop : 1; - unsigned intr : 1; - unsigned wait : 1; - unsigned : 2; - unsigned : 3; - unsigned in_eop : 1; - unsigned : 4; - unsigned md : 16; - char *after; -} dma_descr_data; - -// --------------------------------------------------------------------- macros - -// enable DMA channel -#define DMA_ENABLE( inst ) \ - do { reg_dma_rw_cfg e = REG_RD( dma, inst, rw_cfg );\ - e.en = regk_dma_yes; \ - REG_WR( dma, inst, rw_cfg, e); } while( 0 ) - -// reset DMA channel -#define DMA_RESET( inst ) \ - do { reg_dma_rw_cfg r = REG_RD( dma, inst, rw_cfg );\ - r.en = regk_dma_no; \ - REG_WR( dma, inst, rw_cfg, r); } while( 0 ) - -// stop DMA channel -#define DMA_STOP( inst ) \ - do { reg_dma_rw_cfg s = REG_RD( dma, inst, rw_cfg );\ - s.stop = regk_dma_yes; \ - REG_WR( dma, inst, rw_cfg, s); } while( 0 ) - -// continue DMA channel operation -#define DMA_CONTINUE( inst ) \ - do { reg_dma_rw_cfg c = REG_RD( dma, inst, rw_cfg );\ - c.stop = regk_dma_no; \ - REG_WR( dma, inst, rw_cfg, c); } while( 0 ) - -// give stream command -#define DMA_WR_CMD( inst, cmd_par ) \ - do { reg_dma_rw_stream_cmd __x = {0}; \ - do { __x = REG_RD(dma, inst, rw_stream_cmd); } while (__x.busy); \ - __x.cmd = (cmd_par); \ - REG_WR(dma, inst, rw_stream_cmd, __x); \ - } while (0) - -// load: g,c,d:burst -#define DMA_START_GROUP( inst, group_descr ) \ - do { REG_WR_INT( dma, inst, rw_group, (int) group_descr ); \ - DMA_WR_CMD( inst, regk_dma_load_g ); \ - DMA_WR_CMD( inst, regk_dma_load_c ); \ - DMA_WR_CMD( inst, regk_dma_load_d | regk_dma_burst ); \ - } while( 0 ) - -// load: c,d:burst -#define DMA_START_CONTEXT( inst, ctx_descr ) \ - do { REG_WR_INT( dma, inst, rw_group_down, (int) ctx_descr ); \ - DMA_WR_CMD( inst, regk_dma_load_c ); \ - DMA_WR_CMD( inst, regk_dma_load_d | regk_dma_burst ); \ - } while( 0 ) - -// if the DMA is at the end of the data list, the last data descr is reloaded -#define DMA_CONTINUE_DATA( inst ) \ -do { reg_dma_rw_cmd c = {0}; \ - c.cont_data = regk_dma_yes;\ - REG_WR( dma, inst, rw_cmd, c ); } while( 0 ) - -#endif |