First version

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@158 a1c6a512-1295-4272-9138-f99709370657

4 files changed, 244 insertions, 0 deletions

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 @@
+CC    = sh-elf-gcc 
+LD    = sh-elf-ld
+AR    = sh-elf-ar
+AS    = sh-elf-as
+OC    = sh-elf-objcopy
+
+INCLUDES=-I../../
+
+CFLAGS = -g -Wall -m1 -nostdlib -Wstrict-prototypes -fomit-frame-pointer -fschedule-insns -fno-builtin $(INCLUDES)
+AFLAGS += -small -relax
+
+OBJS= crt0.o main.o ../../lcd.o ../../i2c.o ../../mas.o ../../debug.o
+
+%.o: %.S
+        $(CC) -o $@ $(CFLAGS) $(INCLUDES) $(DEFS) -c $<
+
+
+all : archos.mod
+
+main.o: main.c
+
+archos.elf : $(OBJS) app.lds
+        $(CC) -nostartfiles -o archos.elf $(OBJS) -lgcc -Tapp.lds -Wl,-Map,archos.map
+
+archos.bin : archos.elf
+        $(OC) -O binary archos.elf archos.bin
+
+archos.asm: archos.bin
+        sh2d -sh1 archos.bin > archos.asm
+
+archos.mod : archos.bin
+        scramble archos.bin archos.mod
+
+archos.mod.gz : archos.mod
+        gzip -f archos.mod
+
+dist:
+        tar czvf dist.tar.gz Makefile main.c start.s app.lds
+
+clean:
+        -rm -f *.x *.i *.o *.elf *.bin *.map *.mod *.bak *~
+
+install:
+        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 @@
+ENTRY(start)
+OUTPUT_FORMAT(elf32-sh)
+SECTIONS
+{
+    .text 0x09018000 :
+    {
+        *(.rodata)
+        *(.text)
+    }
+
+    .data :
+    {
+        *(.data)
+    }
+
+    .bss :
+    {
+        *(.bss)
+       _end = . + 0x8000;
+       _stack = . + 0x9000;
+       _edata = .;
+    }
+}
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 @@
+        .section .text
+        .global start
+start:
+        mov.l   stack_k,r15
+
+        ! zero out bss
+        mov.l   edata_k,r0
+        mov.l   end_k,r1
+        mov     #0,r2
+start_l:
+         mov.l  r2,@r0
+        add     #4,r0
+        cmp/ge  r0,r1
+        bt      start_l
+        nop
+
+#if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY)
+        mov.l set_fpscr_k, r1
+        jsr @r1
+        mov #0,r4
+        lds r3,fpscr
+#endif /*  defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__) */
+
+        ! call the mainline     
+        mov.l   main_k,r0
+        jsr     @r0
+        nop
+.hoo:
+    bra .hoo
+
+        .align 2
+#if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__)
+set_fpscr_k:
+        .long   ___set_fpscr
+#endif /*  defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(SH4_SINGLE_ONLY) */
+stack_k:
+        .long   _stack  
+edata_k:
+        .long   _edata
+end_k:
+        .long   _end
+main_k:
+        .long   _main
+
+#ifdef __ELF__
+        .section .stack,"aw"
+#else
+        .section .stack
+#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 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Linus Nielsen Feltzing
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "i2c.h"
+#include "mas.h"
+#include "sh7034.h"
+#include "debug.h"
+
+int strlen(unsigned char* str)
+{
+   int i=0;
+   while (*str++)
+      i++;
+   return i;
+}
+
+int main(void)
+{
+   char buf[40];
+   char str[32];
+   int i=0;
+
+   /* Clear it all! */
+    SSR1 &= ~(SCI_RDRF | SCI_ORER | SCI_PER | SCI_FER);
+
+    /* This enables the serial Rx interrupt, to be able to exit into the
+       debugger when you hit CTRL-C */
+    SCR1 |= 0x40;
+    SCR1 &= ~0x80;
+    asm ("ldc\t%0,sr" : : "r"(0<<4));
+
+    debugf("Olle: %d\n", 7);
+    
+   i2c_init();
+   debug("I2C Init done\n");
+   i=mas_readmem(MAS_BANK_D1,0xff6,(unsigned long*)buf,2);
+   if (i) {
+       debugf("Error - mas_readmem() returned %d\n", i);
+       while(1);
+   }
+
+   i = buf[0] | buf[1] << 8;
+   debugf("MAS version: %x\n", i);
+   i = buf[4] | buf[5] << 8;
+   debugf("MAS revision: %x\n", i);
+
+   i=mas_readmem(MAS_BANK_D1,0xff9,(unsigned long*)buf,7);
+   if (i) {
+       debugf("Error - mas_readmem() returned %d\n", i);
+       while(1);
+   }
+
+   for(i = 0;i < 7;i++)
+   {
+       str[i*2+1] = buf[i*4];
+       str[i*2] = buf[i*4+1];
+   }
+   str[i*2] = 0;
+   debugf("Description: %s\n", str);
+
+   i=mas_readreg(0xe6);
+   if (i < 0) {
+       debugf("Error - mas_readreg() returned %d\n", i);
+       while(1);
+   }
+
+   debugf("Register 0xe6: %x\n", i);
+   
+
+   debugf("Writing register 0xaa\n");
+   
+   i=mas_writereg(0xaa, 0x1);
+   if (i < 0) {
+       debugf("Error - mas_writereg() returned %d\n", i);
+       while(1);
+   }
+
+   i=mas_readreg(0xaa);
+   if (i < 0) {
+       debugf("Error - mas_readreg() returned %d\n", i);
+       while(1);
+   }
+
+   debugf("Register 0xaa: %x\n", i);
+   
+   debugf("Writing register 0xaa again\n");
+   
+   i=mas_writereg(0xaa, 0);
+   if (i < 0) {
+       debugf("Error - mas_writereg() returned %d\n", i);
+       while(1);
+   }
+
+   i=mas_readreg(0xaa);
+   if (i < 0) {
+       debugf("Error - mas_readreg() returned %d\n", i);
+       while(1);
+   }
+
+   debugf("Register 0xaa: %x\n", i);
+   
+   while(1);
+}
+
+extern const void stack(void);
+
+const void* vectors[] __attribute__ ((section (".vectors"))) = 
+{
+   main,        /* Power-on reset */
+   stack,       /* Power-on reset (stack pointer) */
+   main,        /* Manual reset */
+   stack        /* Manual reset (stack pointer) */
+};