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Big Sansa update: Go back to using the common crt0-pp.S. Add LCD driver. Add ADC driver (may not be needed). Fix a bug in the button driver.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11237 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Daniel Ankers 2006-10-16 17:21:36 +00:00
parent 55d1675ada
commit d8ef7c58d8
7 changed files with 500 additions and 127 deletions
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133
bootloader/e200.c
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@ -36,31 +36,59 @@
#include "power.h"
#include "file.h"
void main(void)
static inline void blink(void)
{
volatile unsigned int* ptr;
int i;
ptr = (volatile unsigned int*)0x70000020;
while(1)
*ptr &= ~(1 << 13);
for(i = 0; i < 0xfffff; i++)
{
// blink wheel backlight
ptr = (volatile unsigned int*)0x70000020;
if((*ptr) & (1 << 13))
{
*ptr = (*ptr) & ~(1 << 13);
}
else
{
*ptr = (*ptr) | (1 << 13);
}
// wait a while
for(i = 0; i < 0xfffff; i++)
{
}
}
*ptr |= (1 << 13);
for(i = 0; i < 0xfffff; i++)
{
}
}
static inline void slow_blink(void)
{
volatile unsigned int* ptr;
int i;
ptr = (volatile unsigned int*)0x70000020;
*ptr &= ~(1 << 13);
for(i = 0; i < (0xfffff); i++)
{
}
for(i = 0; i < (0xfffff); i++)
{
}
for(i = 0; i < (0xfffff); i++)
{
}
*ptr |= (1 << 13);
for(i = 0; i < (0xfffff); i++)
{
}
for(i = 0; i < (0xfffff); i++)
{
}
for(i = 0; i < (0xfffff); i++)
{
}
}
static inline unsigned long get_pc(void)
{
unsigned long pc;
asm volatile (
"mov %0, pc\n"
: "=r"(pc)
);
return pc;
}
/* These functions are present in the firmware library, but we reimplement
@ -72,7 +100,62 @@ void reset_poweroff_timer(void)
int dbg_ports(void)
{
return 0;
unsigned int gpio_a, gpio_b, gpio_c, gpio_d;
unsigned int gpio_e, gpio_f, gpio_g, gpio_h;
unsigned int gpio_i, gpio_j, gpio_k, gpio_l;
char buf[128];
int line;
lcd_setmargins(0, 0);
lcd_clear_display();
lcd_setfont(FONT_SYSFIXED);
while(1)
{
gpio_a = GPIOA_INPUT_VAL;
gpio_b = GPIOB_INPUT_VAL;
gpio_c = GPIOC_INPUT_VAL;
gpio_g = GPIOG_INPUT_VAL;
gpio_h = GPIOH_INPUT_VAL;
gpio_i = GPIOI_INPUT_VAL;
line = 0;
snprintf(buf, sizeof(buf), "GPIO_A: %02x GPIO_G: %02x", gpio_a, gpio_g);
lcd_puts(0, line++, buf);
snprintf(buf, sizeof(buf), "GPIO_B: %02x GPIO_H: %02x", gpio_b, gpio_h);
lcd_puts(0, line++, buf);
snprintf(buf, sizeof(buf), "GPIO_C: %02x GPIO_I: %02x", gpio_c, gpio_i);
lcd_puts(0, line++, buf);
line++;
gpio_d = GPIOD_INPUT_VAL;
gpio_e = GPIOE_INPUT_VAL;
gpio_f = GPIOF_INPUT_VAL;
gpio_j = GPIOJ_INPUT_VAL;
gpio_k = GPIOK_INPUT_VAL;
gpio_l = GPIOL_INPUT_VAL;
snprintf(buf, sizeof(buf), "GPIO_D: %02x GPIO_J: %02x", gpio_d, gpio_j);
lcd_puts(0, line++, buf);
snprintf(buf, sizeof(buf), "GPIO_E: %02x GPIO_K: %02x", gpio_e, gpio_k);
lcd_puts(0, line++, buf);
snprintf(buf, sizeof(buf), "GPIO_F: %02x GPIO_L: %02x", gpio_f, gpio_l);
lcd_puts(0, line++, buf);
line++;
snprintf(buf, sizeof(buf), "ADC_1: %02x", adc_read(ADC_0));
lcd_puts(0, line++, buf);
snprintf(buf, sizeof(buf), "ADC_2: %02x", adc_read(ADC_1));
lcd_puts(0, line++, buf);
snprintf(buf, sizeof(buf), "ADC_3: %02x", adc_read(ADC_2));
lcd_puts(0, line++, buf);
snprintf(buf, sizeof(buf), "ADC_4: %02x", adc_read(ADC_3));
lcd_puts(0, line++, buf);
lcd_update();
}
return 0;
}
void mpeg_stop(void)
@ -95,3 +178,13 @@ void system_reboot(void)
{
}
void main(void)
{
kernel_init();
adc_init();
lcd_init_device();
dbg_ports();
}