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initial take at LCD API

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Nothing is correct at the moment, but basic commands are integrated
into the shell, which will simplifying merging later on for files
that are shared-edit.
This commit is contained in:
bunnie 2014-09-15 10:15:25 +00:00
parent 09600c82c9
commit d21c18d1f0
4 changed files with 142 additions and 0 deletions
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61
cmd-lcd.c Normal file
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#include <string.h>
#include "bionic.h"
#include "memio.h"
#include "printf.h"
#include "serial.h"
#include "fernvale-lcd.h"
// local implementation of strncmp() because we don't have it as a lib in fernly
static int my_strncmp(const char* s1, const char* s2, size_t n)
{
while(n--) {
if( *s2 == '\0' ) // abort checking if we reach the end of s2
return 0;
if(*s1++!=*s2++)
return *(unsigned char*)(s1 - 1) - *(unsigned char*)(s2 - 1);
}
return 0;
}
int cmd_lcd(int argc, char **argv)
{
uint32_t genarg = 0;
char *subcmd;
if (argc < 1) {
printf("Usage: lcd [subcmd] [arg0]\n");
return -1;
}
subcmd = argv[0];
if (argc == 2 ) {
genarg = _strtoul(argv[1], NULL, 0);
}
printf( "command got: %s\n", subcmd );
if( my_strncmp( subcmd, "su", 8 ) == 0 ) {
// execute setup command
printf( "nothing for now.\n" );
} else if( my_strncmp( subcmd, "dump", 8 ) == 0 ) {
// dump registers
printf( "LCD_PAR0_CMD_PORT_REG: %08x\n", *((volatile uint32_t *) LCD_PAR0_CMD_PORT_REG) );
printf( "LCD_PAR0_DAT_PORT_REG: %08x\n", *((volatile uint32_t *) LCD_PAR0_DAT_PORT_REG) );
printf( "LCD_PAR1_CMD_PORT_REG: %08x\n", *((volatile uint32_t *) LCD_PAR1_CMD_PORT_REG) );
printf( "LCD_PAR1_DAT_PORT_REG: %08x\n", *((volatile uint32_t *) LCD_PAR1_DAT_PORT_REG) );
printf( "LCD_PAR0_CFG_REG: %08x\n", *((volatile uint32_t *) LCD_PAR0_CFG_REG) );
printf( "LCD_PAR1_CFG_REG: %08x\n", *((volatile uint32_t *) LCD_PAR1_CFG_REG) );
printf( "LCD_STATUS_REG: %08x\n", *((volatile uint32_t *) LCD_STATUS_REG) );
printf( "LCD_INT_ENA_REG: %08x\n", *((volatile uint32_t *) LCD_INT_ENA_REG) );
printf( "LCD_INT_STAT_REG: %08x\n", *((volatile uint32_t *) LCD_INT_STAT_REG) );
printf( "LCD_RUN_REG: %08x\n", *((volatile uint32_t *) LCD_RUN_REG) );
printf( "LCD_RESET_REG: %08x\n", *((volatile uint32_t *) LCD_RESET_REG) );
printf( "LCD_PAR_DATA_WIDTH_REG: %08x\n", *((volatile uint32_t *) LCD_PAR_DATA_WIDTH_REG) );
printf( "LCD_TEARING_CON_REG: %08x\n", *((volatile uint32_t *) LCD_TEARING_CON_REG) );
} else {
printf( "lcd commands: su (setup timing), dump (dump registers)\n" );
}
return 0;
}