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-rw-r--r--firmware/mas.c164
-rw-r--r--firmware/mas.h54
-rw-r--r--firmware/test/i2c/Makefile44
-rw-r--r--firmware/test/i2c/app.lds23
-rw-r--r--firmware/test/i2c/crt0.S49
-rw-r--r--firmware/test/i2c/main.c128
6 files changed, 462 insertions, 0 deletions
diff --git a/firmware/mas.c b/firmware/mas.c
new file mode 100644
index 0000000000..decfff612b
--- /dev/null
+++ b/firmware/mas.c
@@ -0,0 +1,164 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Linus Nielsen Feltzing
11 *
12 * All files in this archive are subject to the GNU General Public License.
13 * See the file COPYING in the source tree root for full license agreement.
14 *
15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
16 * KIND, either express or implied.
17 *
18 ****************************************************************************/
19#include "i2c.h"
20#include "debug.h"
21#include "mas.h"
22
23/* note: 'len' is number of 32-bit words, not number of bytes! */
24int mas_readmem(int bank, int addr, unsigned long* dest, int len)
25{
26 int i;
27 unsigned char buf[16];
28
29 i=0;
30 buf[i++] = MAS_DATA_WRITE;
31 buf[i++] = bank?0xf0:0xe0;
32 buf[i++] = 0x00;
33 buf[i++] = (len & 0xff00) >> 8;
34 buf[i++] = len & 0xff;
35 buf[i++] = (addr & 0xff00) >> 8;
36 buf[i++] = addr & 0xff;
37
38 /* send read command */
39 if (i2c_write(MAS_DEV_WRITE,buf,i))
40 {
41 return -1;
42 }
43
44 return mas_devread(dest, len);
45}
46
47/* note: 'len' is number of 32-bit words, not number of bytes! */
48int mas_writemem(int bank, int addr, unsigned long* src, int len)
49{
50 int i, j;
51 unsigned char buf[60];
52 unsigned char* ptr = (unsigned char*)src;
53
54 i=0;
55 buf[i++] = MAS_DATA_WRITE;
56 buf[i++] = bank;
57 buf[i++] = 0x00;
58 buf[i++] = (len & 0xff00) >> 8;
59 buf[i++] = len & 0xff;
60 buf[i++] = (addr & 0xff00) >> 8;
61 buf[i++] = addr & 0xff;
62
63 j = 0;
64 while(len--) {
65 buf[i++] = ptr[j*4+1];
66 buf[i++] = ptr[j*4+0];
67 buf[i++] = 0;
68 buf[i++] = ptr[j*4+2];
69 j += 4;
70 }
71
72 /* send write command */
73 if (i2c_write(MAS_DEV_WRITE,buf,i))
74 {
75 return -1;
76 }
77
78 return 0;
79}
80
81int mas_readreg(int reg)
82{
83 int i;
84 unsigned char buf[16];
85
86 i=0;
87 buf[i++] = MAS_DATA_WRITE;
88 buf[i++] = 0xd0 | reg >> 4;
89 buf[i++] = (reg & 0x0f) << 4;
90
91 /* send read command */
92 if (i2c_write(MAS_DEV_WRITE,buf,i))
93 {
94 return -1;
95 }
96
97 if(mas_devread((unsigned long *)buf, 1))
98 {
99 return -2;
100 }
101
102 return buf[0] | buf[1] << 8 | buf[3] << 16;
103}
104
105int mas_writereg(int reg, unsigned short val)
106{
107 int i;
108 unsigned char buf[16];
109
110 i=0;
111 buf[i++] = MAS_DATA_WRITE;
112 buf[i++] = 0x90 | reg >> 4;
113 buf[i++] = ((reg & 0x0f) << 4) | (val & 0x0f);
114 buf[i++] = (val >> 12) & 0xff;
115 buf[i++] = (val >> 4) & 0xff;
116
117 /* send write command */
118 if (i2c_write(MAS_DEV_WRITE,buf,i))
119 {
120 return -1;
121 }
122 return 0;
123}
124
125/* note: 'len' is number of 32-bit words, not number of bytes! */
126int mas_devread(unsigned long *dest, int len)
127{
128 unsigned char* ptr = (unsigned char*)dest;
129 int ret = 0;
130 int i;
131
132 /* handle read-back */
133 i2c_start();
134 i2c_outb(MAS_DEV_WRITE);
135 if (i2c_getack()) {
136 i2c_outb(MAS_DATA_READ);
137 if (i2c_getack()) {
138 i2c_start();
139 i2c_outb(MAS_DEV_READ);
140 if (i2c_getack()) {
141 for (i=0;len;i++) {
142 len--;
143 ptr[i*4+1] = i2c_inb(0);
144 ptr[i*4+0] = i2c_inb(0);
145 ptr[i*4+3] = i2c_inb(0);
146 if(len)
147 ptr[i*4+2] = i2c_inb(0);
148 else
149 ptr[i*4+2] = i2c_inb(1); /* NAK the last byte */
150 }
151 }
152 else
153 ret = -3;
154 }
155 else
156 ret = -2;
157 }
158 else
159 ret = -1;
160
161 i2c_stop();
162
163 return ret;
164}
diff --git a/firmware/mas.h b/firmware/mas.h
new file mode 100644
index 0000000000..65e23f1498
--- /dev/null
+++ b/firmware/mas.h
@@ -0,0 +1,54 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Linus Nielsen Feltzing
11 *
12 * All files in this archive are subject to the GNU General Public License.
13 * See the file COPYING in the source tree root for full license agreement.
14 *
15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
16 * KIND, either express or implied.
17 *
18 ****************************************************************************/
19#ifndef _MAS_H_
20#define _MAS_H_
21
22#define MAS_BANK_D0 0
23#define MAS_BANK_D1 1
24
25/*
26 MAS I2C defs
27*/
28#define MAS_ADR 0x3a
29#define MAS_DEV_WRITE (MAS_ADR | 0x00)
30#define MAS_DEV_READ (MAS_ADR | 0x01)
31
32/* registers..*/
33#define MAS_DATA_WRITE 0x68
34#define MAS_DATA_READ 0x69
35#define MAS_CONTROL 0x6a
36
37/*
38 * MAS register
39 */
40#define MAS_REG_DCCF 0x8e
41#define MAS_REG_MUTE 0xaa
42#define MAS_REG_PIODATA 0xc8
43#define MAS_REG_StartUpConfig 0xe6
44#define MAS_REG_KPRESCALE 0xe7
45#define MAS_REG_KBASS 0x6b
46#define MAS_REG_KTREBLE 0x6f
47
48int mas_readmem(int bank, int addr, unsigned long* dest, int len);
49int mas_writemem(int bank, int addr, unsigned long* src, int len);
50int mas_devread(unsigned long *buf, int len);
51int mas_readreg(int reg);
52int mas_writereg(int reg, unsigned short val);
53
54#endif
diff --git a/firmware/test/i2c/Makefile b/firmware/test/i2c/Makefile
new file mode 100644
index 0000000000..831299f787
--- /dev/null
+++ b/firmware/test/i2c/Makefile
@@ -0,0 +1,44 @@
1CC = sh-elf-gcc
2LD = sh-elf-ld
3AR = sh-elf-ar
4AS = sh-elf-as
5OC = sh-elf-objcopy
6
7INCLUDES=-I../../
8
9CFLAGS = -g -Wall -m1 -nostdlib -Wstrict-prototypes -fomit-frame-pointer -fschedule-insns -fno-builtin $(INCLUDES)
10AFLAGS += -small -relax
11
12OBJS= crt0.o main.o ../../lcd.o ../../i2c.o ../../mas.o ../../debug.o
13
14%.o: %.S
15 $(CC) -o $@ $(CFLAGS) $(INCLUDES) $(DEFS) -c $<
16
17
18all : archos.mod
19
20main.o: main.c
21
22archos.elf : $(OBJS) app.lds
23 $(CC) -nostartfiles -o archos.elf $(OBJS) -lgcc -Tapp.lds -Wl,-Map,archos.map
24
25archos.bin : archos.elf
26 $(OC) -O binary archos.elf archos.bin
27
28archos.asm: archos.bin
29 sh2d -sh1 archos.bin > archos.asm
30
31archos.mod : archos.bin
32 scramble archos.bin archos.mod
33
34archos.mod.gz : archos.mod
35 gzip -f archos.mod
36
37dist:
38 tar czvf dist.tar.gz Makefile main.c start.s app.lds
39
40clean:
41 -rm -f *.x *.i *.o *.elf *.bin *.map *.mod *.bak *~
42
43install:
44 mount /mnt/archos; cp archos.mod /mnt/archos; umount /mnt/archos
diff --git a/firmware/test/i2c/app.lds b/firmware/test/i2c/app.lds
new file mode 100644
index 0000000000..4b7e5f4c6f
--- /dev/null
+++ b/firmware/test/i2c/app.lds
@@ -0,0 +1,23 @@
1ENTRY(start)
2OUTPUT_FORMAT(elf32-sh)
3SECTIONS
4{
5 .text 0x09018000 :
6 {
7 *(.rodata)
8 *(.text)
9 }
10
11 .data :
12 {
13 *(.data)
14 }
15
16 .bss :
17 {
18 *(.bss)
19 _end = . + 0x8000;
20 _stack = . + 0x9000;
21 _edata = .;
22 }
23}
diff --git a/firmware/test/i2c/crt0.S b/firmware/test/i2c/crt0.S
new file mode 100644
index 0000000000..5f0ef2d64e
--- /dev/null
+++ b/firmware/test/i2c/crt0.S
@@ -0,0 +1,49 @@
1 .section .text
2 .global start
3start:
4 mov.l stack_k,r15
5
6 ! zero out bss
7 mov.l edata_k,r0
8 mov.l end_k,r1
9 mov #0,r2
10start_l:
11 mov.l r2,@r0
12 add #4,r0
13 cmp/ge r0,r1
14 bt start_l
15 nop
16
17#if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY)
18 mov.l set_fpscr_k, r1
19 jsr @r1
20 mov #0,r4
21 lds r3,fpscr
22#endif /* defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__) */
23
24 ! call the mainline
25 mov.l main_k,r0
26 jsr @r0
27 nop
28.hoo:
29 bra .hoo
30
31 .align 2
32#if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__)
33set_fpscr_k:
34 .long ___set_fpscr
35#endif /* defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(SH4_SINGLE_ONLY) */
36stack_k:
37 .long _stack
38edata_k:
39 .long _edata
40end_k:
41 .long _end
42main_k:
43 .long _main
44
45#ifdef __ELF__
46 .section .stack,"aw"
47#else
48 .section .stack
49#endif
diff --git a/firmware/test/i2c/main.c b/firmware/test/i2c/main.c
new file mode 100644
index 0000000000..588236aff1
--- /dev/null
+++ b/firmware/test/i2c/main.c
@@ -0,0 +1,128 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Linus Nielsen Feltzing
11 *
12 * All files in this archive are subject to the GNU General Public License.
13 * See the file COPYING in the source tree root for full license agreement.
14 *
15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
16 * KIND, either express or implied.
17 *
18 ****************************************************************************/
19#include "i2c.h"
20#include "mas.h"
21#include "sh7034.h"
22#include "debug.h"
23
24int strlen(unsigned char* str)
25{
26 int i=0;
27 while (*str++)
28 i++;
29 return i;
30}
31
32int main(void)
33{
34 char buf[40];
35 char str[32];
36 int i=0;
37
38 /* Clear it all! */
39 SSR1 &= ~(SCI_RDRF | SCI_ORER | SCI_PER | SCI_FER);
40
41 /* This enables the serial Rx interrupt, to be able to exit into the
42 debugger when you hit CTRL-C */
43 SCR1 |= 0x40;
44 SCR1 &= ~0x80;
45 asm ("ldc\t%0,sr" : : "r"(0<<4));
46
47 debugf("Olle: %d\n", 7);
48
49 i2c_init();
50 debug("I2C Init done\n");
51 i=mas_readmem(MAS_BANK_D1,0xff6,(unsigned long*)buf,2);
52 if (i) {
53 debugf("Error - mas_readmem() returned %d\n", i);
54 while(1);
55 }
56
57 i = buf[0] | buf[1] << 8;
58 debugf("MAS version: %x\n", i);
59 i = buf[4] | buf[5] << 8;
60 debugf("MAS revision: %x\n", i);
61
62 i=mas_readmem(MAS_BANK_D1,0xff9,(unsigned long*)buf,7);
63 if (i) {
64 debugf("Error - mas_readmem() returned %d\n", i);
65 while(1);
66 }
67
68 for(i = 0;i < 7;i++)
69 {
70 str[i*2+1] = buf[i*4];
71 str[i*2] = buf[i*4+1];
72 }
73 str[i*2] = 0;
74 debugf("Description: %s\n", str);
75
76 i=mas_readreg(0xe6);
77 if (i < 0) {
78 debugf("Error - mas_readreg() returned %d\n", i);
79 while(1);
80 }
81
82 debugf("Register 0xe6: %x\n", i);
83
84
85 debugf("Writing register 0xaa\n");
86
87 i=mas_writereg(0xaa, 0x1);
88 if (i < 0) {
89 debugf("Error - mas_writereg() returned %d\n", i);
90 while(1);
91 }
92
93 i=mas_readreg(0xaa);
94 if (i < 0) {
95 debugf("Error - mas_readreg() returned %d\n", i);
96 while(1);
97 }
98
99 debugf("Register 0xaa: %x\n", i);
100
101 debugf("Writing register 0xaa again\n");
102
103 i=mas_writereg(0xaa, 0);
104 if (i < 0) {
105 debugf("Error - mas_writereg() returned %d\n", i);
106 while(1);
107 }
108
109 i=mas_readreg(0xaa);
110 if (i < 0) {
111 debugf("Error - mas_readreg() returned %d\n", i);
112 while(1);
113 }
114
115 debugf("Register 0xaa: %x\n", i);
116
117 while(1);
118}
119
120extern const void stack(void);
121
122const void* vectors[] __attribute__ ((section (".vectors"))) =
123{
124 main, /* Power-on reset */
125 stack, /* Power-on reset (stack pointer) */
126 main, /* Manual reset */
127 stack /* Manual reset (stack pointer) */
128};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 14:12:40 +0000