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twiboot
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Code Issues 2 Pull Requests Releases Activity

Cleanup command names

This commit is contained in:
Olaf Rempel 2020-01-20 23:44:22 +01:00
parent 05a4533cd2
commit cde9bf0a5b
1 changed files with 14 additions and 21 deletions
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35
main.c
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@ -58,23 +58,17 @@
/* SLA+R */
#define CMD_WAIT 0x00
#define CMD_READ_VERSION 0x01
#define CMD_READ_MEMORY 0x02
#define CMD_ACCESS_MEMORY 0x02
/* internal mappings */
#define CMD_READ_CHIPINFO (0x10 | CMD_READ_MEMORY)
#define CMD_READ_FLASH (0x20 | CMD_READ_MEMORY)
#define CMD_READ_EEPROM (0x30 | CMD_READ_MEMORY)
#define CMD_READ_PARAMETERS (0x40 | CMD_READ_MEMORY) /* only in APP */
#define CMD_ACCESS_CHIPINFO (0x10 | CMD_ACCESS_MEMORY)
#define CMD_ACCESS_FLASH (0x20 | CMD_ACCESS_MEMORY)
#define CMD_ACCESS_EEPROM (0x30 | CMD_ACCESS_MEMORY)
/* SLA+W */
#define CMD_SWITCH_APPLICATION CMD_READ_VERSION
#define CMD_WRITE_MEMORY CMD_READ_MEMORY
/* internal mappings */
#define CMD_BOOT_BOOTLOADER (0x10 | CMD_SWITCH_APPLICATION) /* only in APP */
#define CMD_BOOT_APPLICATION (0x20 | CMD_SWITCH_APPLICATION)
#define CMD_WRITE_CHIPINFO (0x10 | CMD_WRITE_MEMORY) /* invalid */
#define CMD_WRITE_FLASH (0x20 | CMD_WRITE_MEMORY)
#define CMD_WRITE_EEPROM (0x30 | CMD_WRITE_MEMORY)
#define CMD_WRITE_PARAMETERS (0x40 | CMD_WRITE_MEMORY) /* only in APP */
/* CMD_SWITCH_APPLICATION parameter */
#define BOOTTYPE_BOOTLOADER 0x00 /* only in APP */
@ -84,7 +78,6 @@
#define MEMTYPE_CHIPINFO 0x00
#define MEMTYPE_FLASH 0x01
#define MEMTYPE_EEPROM 0x02
#define MEMTYPE_PARAMETERS 0x03 /* only in APP */
/*
* LED_GN flashes with 20Hz (while bootloader is running)
@ -224,7 +217,7 @@ static uint8_t TWI_data_write(uint8_t bcnt, uint8_t data)
switch (data)
{
case CMD_SWITCH_APPLICATION:
case CMD_WRITE_MEMORY:
case CMD_ACCESS_MEMORY:
/* no break */
case CMD_WAIT:
@ -254,19 +247,19 @@ static uint8_t TWI_data_write(uint8_t bcnt, uint8_t data)
ack = 0x00;
break;
case CMD_WRITE_MEMORY:
case CMD_ACCESS_MEMORY:
if (data == MEMTYPE_CHIPINFO)
{
cmd = CMD_WRITE_CHIPINFO;
cmd = CMD_ACCESS_CHIPINFO;
}
else if (data == MEMTYPE_FLASH)
{
cmd = CMD_WRITE_FLASH;
cmd = CMD_ACCESS_FLASH;
}
#if (EEPROM_SUPPORT)
else if (data == MEMTYPE_EEPROM)
{
cmd = CMD_WRITE_EEPROM;
cmd = CMD_ACCESS_EEPROM;
}
#endif /* (EEPROM_SUPPORT) */
else
@ -290,7 +283,7 @@ static uint8_t TWI_data_write(uint8_t bcnt, uint8_t data)
default:
switch (cmd)
{
case CMD_WRITE_FLASH:
case CMD_ACCESS_FLASH:
buf[bcnt -4] = data;
if (bcnt >= sizeof(buf) +3)
{
@ -300,7 +293,7 @@ static uint8_t TWI_data_write(uint8_t bcnt, uint8_t data)
break;
#if (EEPROM_SUPPORT)
case CMD_WRITE_EEPROM:
case CMD_ACCESS_EEPROM:
write_eeprom_byte(data);
break;
#endif /* (EEPROM_SUPPORT) */
@ -330,17 +323,17 @@ static uint8_t TWI_data_read(uint8_t bcnt)
data = info[bcnt];
break;
case CMD_READ_CHIPINFO:
case CMD_ACCESS_CHIPINFO:
bcnt %= sizeof(chipinfo);
data = chipinfo[bcnt];
break;
case CMD_READ_FLASH:
case CMD_ACCESS_FLASH:
data = pgm_read_byte_near(addr++);
break;
#if (EEPROM_SUPPORT)
case CMD_READ_EEPROM:
case CMD_ACCESS_EEPROM:
data = read_eeprom_byte();
break;
#endif /* (EEPROM_SUPPORT) */