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/*
* tiomap_io.h
*
* DSP-BIOS Bridge driver support functions for TI OMAP processors.
*
* Definitions, types and function prototypes for the io (r/w external mem).
*
* Copyright (C) 2005-2006 Texas Instruments, Inc.
*
* This package 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.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef _TIOMAP_IO_
#define _TIOMAP_IO_
/*
* Symbol that defines beginning of shared memory.
* For OMAP (Helen) this is the DSP Virtual base address of SDRAM.
* This will be used to program DSP MMU to map DSP Virt to GPP phys.
* (see dspMmuTlbEntry()).
*/
#define SHMBASENAME "SHM_BEG"
#define EXTBASE "EXT_BEG"
#define EXTEND "_EXT_END"
#define DYNEXTBASE "_DYNEXT_BEG"
#define DYNEXTEND "_DYNEXT_END"
#define IVAEXTMEMBASE "_IVAEXTMEM_BEG"
#define IVAEXTMEMEND "_IVAEXTMEM_END"
#define DSP_TRACESEC_BEG "_BRIDGE_TRACE_BEG"
#define DSP_TRACESEC_END "_BRIDGE_TRACE_END"
#define SYS_PUTCBEG "_SYS_PUTCBEG"
#define SYS_PUTCEND "_SYS_PUTCEND"
#define BRIDGE_SYS_PUTC_CURRENT "_BRIDGE_SYS_PUTC_current"
#define WORDSWAP_ENABLE 0x3 /* Enable word swap */
/*
* ======== read_ext_dsp_data ========
* Reads it from DSP External memory. The external memory for the DSP
* is configured by the combination of DSP MMU and shm Memory manager in the CDB
*/
extern int read_ext_dsp_data(struct bridge_dev_context *dev_ctxt,
u8 *host_buff, u32 dsp_addr,
u32 ul_num_bytes, u32 mem_type);
/*
* ======== write_dsp_data ========
*/
extern int write_dsp_data(struct bridge_dev_context *dev_context,
u8 *host_buff, u32 dsp_addr,
u32 ul_num_bytes, u32 mem_type);
/*
* ======== write_ext_dsp_data ========
* Writes to the DSP External memory for external program.
* The ext mem for progra is configured by the combination of DSP MMU and
* shm Memory manager in the CDB
*/
extern int write_ext_dsp_data(struct bridge_dev_context *dev_context,
u8 *host_buff, u32 dsp_addr,
u32 ul_num_bytes, u32 mem_type,
bool dynamic_load);
/*
* ======== write_ext32_bit_dsp_data ========
* Writes 32 bit data to the external memory
*/
extern inline void write_ext32_bit_dsp_data(const
struct bridge_dev_context *dev_context,
u32 dsp_addr, u32 val)
{
*(u32 *) dsp_addr = ((dev_context->tc_word_swap_on) ? (((val << 16) &
0xFFFF0000) |
((val >> 16) &
0x0000FFFF)) :
val);
}
/*
* ======== read_ext32_bit_dsp_data ========
* Reads 32 bit data from the external memory
*/
extern inline u32 read_ext32_bit_dsp_data(const struct bridge_dev_context
*dev_context, u32 dsp_addr)
{
u32 ret;
ret = *(u32 *) dsp_addr;
ret = ((dev_context->tc_word_swap_on) ? (((ret << 16)
& 0xFFFF0000) | ((ret >> 16) &
0x0000FFFF))
: ret);
return ret;
}
#endif /* _TIOMAP_IO_ */
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