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Make the Telechips bootloader slightly less messy, kill some warnings and allow entry to the bootloader debug screen via the D2's hold switch.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16879 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rob Purchase 2008-03-29 17:26:16 +00:00
parent edf6d90ca4
commit 3b46671a40
1 changed files with 88 additions and 77 deletions
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165
bootloader/telechips.c
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@ -35,6 +35,7 @@
#include "button.h"
#include "adc.h"
#include "adc-target.h"
#include "backlight.h"
#include "backlight-target.h"
#include "panic.h"
#include "power.h"
@ -52,13 +53,92 @@ extern int line;
#define MAX_LOAD_SIZE (8*1024*1024) /* Arbitrary, but plenty. */
void* main(void)
void show_debug_screen(void)
{
int button;
int power_count = 0;
int count = 0;
bool do_power_off = false;
while(!do_power_off) {
line = 0;
printf("Hello World!");
button = button_read_device();
/* Power-off if POWER button has been held for a long time
This loop is currently running at about 100 iterations/second
*/
if (button & POWEROFF_BUTTON) {
power_count++;
if (power_count > 200)
do_power_off = true;
} else {
power_count = 0;
}
printf("Btn: 0x%08x",button);
#if defined(COWON_D2)
int i;
printf("GPIOA: 0x%08x",GPIOA);
printf("GPIOB: 0x%08x",GPIOB);
printf("GPIOC: 0x%08x",GPIOC);
printf("GPIOD: 0x%08x",GPIOD);
printf("GPIOE: 0x%08x",GPIOE);
for (i = 0; i<4; i++)
{
printf("ADC%d: 0x%04x",i,adc_read(i));
}
/* TODO: Move this stuff out to a touchscreen driver and establish
how such a beast is going to work. Since it needs I2C read/write,
it can't easily go on an interrupt-based tick task. */
{
unsigned char buf[] = { 0x2f, (0xE<<1) | 1, /* ADC start for X+Y */
0, 0, 0 };
int x,y;
i2c_write(0x10, buf, 2);
i2c_readmem(0x10, 0x2e, buf, 5);
x = (buf[2] << 2) | (buf[3] & 3);
y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2);
printf("X: 0x%03x Y: 0x%03x",x,y);
x = (x*LCD_WIDTH) / 1024;
y = (y*LCD_HEIGHT) / 1024;
lcd_hline(x-5, x+5, y);
lcd_vline(x, y-5, y+5);
buf[0] = 0x2f;
buf[1] = (0xF<<1) | 1; /* ADC start for P1+P2 */
i2c_write(0x10, buf, 2);
i2c_readmem(0x10, 0x2e, buf, 5);
x = (buf[2] << 2) | (buf[3] & 3);
y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2);
printf("P1: 0x%03x P2: 0x%03x",x,y);
}
#endif
count++;
printf("Count: %d",count);
}
lcd_clear_display();
line = 0;
printf("POWER-OFF");
/* Power-off */
power_off();
printf("(NOT) POWERED OFF");
while (true);
}
void* main(void)
{
#if defined(COWON_D2) && defined(TCCBOOT)
int rc;
unsigned char* loadbuffer = (unsigned char*)LOAD_ADDRESS;
@ -108,85 +188,16 @@ void* main(void)
{
int(*kernel_entry)(void);
/* wait for button release to allow debug statememts to be read */
while (button_read_device()) {};
kernel_entry = (void*) loadbuffer;
rc = kernel_entry();
}
#else
while(!do_power_off) {
line = 0;
printf("Hello World!");
button = button_read_device();
/* Power-off if POWER button has been held for a long time
This loop is currently running at about 100 iterations/second
*/
if (button & POWEROFF_BUTTON) {
power_count++;
if (power_count > 200)
do_power_off = true;
} else {
power_count = 0;
}
printf("Btn: 0x%08x",button);
#if defined(COWON_D2)
int i;
printf("GPIOA: 0x%08x",GPIOA);
printf("GPIOB: 0x%08x",GPIOB);
printf("GPIOC: 0x%08x",GPIOC);
printf("GPIOD: 0x%08x",GPIOD);
printf("GPIOE: 0x%08x",GPIOE);
for (i = 0; i<4; i++)
{
printf("ADC%d: 0x%04x",i,adc_read(i));
}
/* TODO: Move this stuff out to a touchscreen driver and establish
how such a beast is going to work. Since it needs I2C read/write,
it can't easily go on an interrupt-based tick task. */
{
unsigned char buf[] = { 0x2f, (0xE<<1) | 1, /* ADC start for X+Y */
0, 0, 0 };
int x,y;
i2c_write(0x10, buf, 2);
i2c_readmem(0x10, 0x2e, buf, 5);
x = (buf[2] << 2) | (buf[3] & 3);
y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2);
printf("X: 0x%03x Y: 0x%03x",x,y);
x = (x*LCD_WIDTH) / 1024;
y = (y*LCD_HEIGHT) / 1024;
lcd_hline(x-5, x+5, y);
lcd_vline(x, y-5, y+5);
buf[0] = 0x2f;
buf[1] = (0xF<<1) | 1; /* ADC start for P1+P2 */
i2c_write(0x10, buf, 2);
i2c_readmem(0x10, 0x2e, buf, 5);
x = (buf[2] << 2) | (buf[3] & 3);
y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2);
printf("P1: 0x%03x P2: 0x%03x",x,y);
}
#endif
count++;
printf("Count: %d",count);
/* allow entry to the debug screen if hold is on */
if (!button_hold()) rc = kernel_entry();
}
lcd_clear_display();
line = 0;
printf("POWER-OFF");
/* Power-off */
power_off();
printf("(NOT) POWERED OFF");
#endif
show_debug_screen();
return 0;
}