1 /*
2 * tiomap_io.h
3 *
4 * DSP-BIOS Bridge driver support functions for TI OMAP processors.
5 *
6 * Definitions, types and function prototypes for the io (r/w external mem).
7 *
8 * Copyright (C) 2005-2006 Texas Instruments, Inc.
9 *
10 * This package is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14 * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
16 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
17 */
18
19 #ifndef _TIOMAP_IO_
20 #define _TIOMAP_IO_
21
22 /*
23 * Symbol that defines beginning of shared memory.
24 * For OMAP (Helen) this is the DSP Virtual base address of SDRAM.
25 * This will be used to program DSP MMU to map DSP Virt to GPP phys.
26 * (see dspMmuTlbEntry()).
27 */
28 #define SHMBASENAME "SHM_BEG"
29 #define EXTBASE "EXT_BEG"
30 #define EXTEND "_EXT_END"
31 #define DYNEXTBASE "_DYNEXT_BEG"
32 #define DYNEXTEND "_DYNEXT_END"
33 #define IVAEXTMEMBASE "_IVAEXTMEM_BEG"
34 #define IVAEXTMEMEND "_IVAEXTMEM_END"
35
36 #define DSP_TRACESEC_BEG "_BRIDGE_TRACE_BEG"
37 #define DSP_TRACESEC_END "_BRIDGE_TRACE_END"
38
39 #define SYS_PUTCBEG "_SYS_PUTCBEG"
40 #define SYS_PUTCEND "_SYS_PUTCEND"
41 #define BRIDGE_SYS_PUTC_CURRENT "_BRIDGE_SYS_PUTC_current"
42
43 #define WORDSWAP_ENABLE 0x3 /* Enable word swap */
44
45 /*
46 * ======== read_ext_dsp_data ========
47 * Reads it from DSP External memory. The external memory for the DSP
48 * is configured by the combination of DSP MMU and shm Memory manager in the CDB
49 */
50 extern int read_ext_dsp_data(struct bridge_dev_context *dev_ctxt,
51 u8 *host_buff, u32 dsp_addr,
52 u32 ul_num_bytes, u32 mem_type);
53
54 /*
55 * ======== write_dsp_data ========
56 */
57 extern int write_dsp_data(struct bridge_dev_context *dev_context,
58 u8 *host_buff, u32 dsp_addr,
59 u32 ul_num_bytes, u32 mem_type);
60
61 /*
62 * ======== write_ext_dsp_data ========
63 * Writes to the DSP External memory for external program.
64 * The ext mem for progra is configured by the combination of DSP MMU and
65 * shm Memory manager in the CDB
66 */
67 extern int write_ext_dsp_data(struct bridge_dev_context *dev_context,
68 u8 *host_buff, u32 dsp_addr,
69 u32 ul_num_bytes, u32 mem_type,
70 bool dynamic_load);
71
72 /*
73 * ======== write_ext32_bit_dsp_data ========
74 * Writes 32 bit data to the external memory
75 */
write_ext32_bit_dsp_data(const struct bridge_dev_context * dev_context,u32 dsp_addr,u32 val)76 extern inline void write_ext32_bit_dsp_data(const
77 struct bridge_dev_context *dev_context,
78 u32 dsp_addr, u32 val)
79 {
80 *(u32 *) dsp_addr = ((dev_context->tc_word_swap_on) ? (((val << 16) &
81 0xFFFF0000) |
82 ((val >> 16) &
83 0x0000FFFF)) :
84 val);
85 }
86
87 /*
88 * ======== read_ext32_bit_dsp_data ========
89 * Reads 32 bit data from the external memory
90 */
read_ext32_bit_dsp_data(const struct bridge_dev_context * dev_context,u32 dsp_addr)91 extern inline u32 read_ext32_bit_dsp_data(const struct bridge_dev_context
92 *dev_context, u32 dsp_addr)
93 {
94 u32 ret;
95 ret = *(u32 *) dsp_addr;
96
97 ret = ((dev_context->tc_word_swap_on) ? (((ret << 16)
98 & 0xFFFF0000) | ((ret >> 16) &
99 0x0000FFFF))
100 : ret);
101 return ret;
102 }
103
104 #endif /* _TIOMAP_IO_ */
105