di0ib/tmk_keyboard_custom
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kimera: Reduce communication with unused expander

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This commit is contained in:
Kai Ryu 2016-03-31 19:01:31 +09:00
parent 93029977a8
commit 6508d8d7b8
1 changed files with 62 additions and 18 deletions
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64
keyboard/kimera/kimera.c
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@ -84,7 +84,8 @@ static uint8_t col_left_count = 16;
static matrix_row_t col_left_mask;
#endif
static uint8_t data[EXP_COUNT][EXP_PORT_COUNT];
static uint8_t exp_status = 0;
static uint8_t exp_in_use = 0;
static uint8_t exp_online = 0;
static uint8_t read_matrix_mapping(void);
static void write_matrix_mapping(void);
@ -146,10 +147,17 @@ uint8_t read_matrix_mapping(void)
/* read row mapping */
uint8_t *mapping = EECONFIG_ROW_COL_MAPPING;
uint8_t exp;
for (uint8_t i = 0; i < PX_COUNT; i++) {
if (i < row_count) {
row_mapping[i] = eeprom_read_byte(mapping++);
if (row_mapping[i] >= PX_COUNT) error++;
if (row_mapping[i] >= PX_COUNT) {
error++;
}
else {
exp = PX_TO_EXP(row_mapping[i]);
exp_in_use |= (1<<exp);
}
}
else {
row_mapping[i] = UNCONFIGURED;
@ -159,7 +167,13 @@ uint8_t read_matrix_mapping(void)
for (uint8_t i = 0; i < PX_COUNT; i++) {
if (i < col_count) {
col_mapping[i] = eeprom_read_byte(mapping++);
if (col_mapping[i] >= PX_COUNT) error++;
if (col_mapping[i] >= PX_COUNT) {
error++;
}
else {
exp = PX_TO_EXP(col_mapping[i]);
exp_in_use |= (1<<exp);
}
}
else {
col_mapping[i] = UNCONFIGURED;
@ -188,25 +202,49 @@ void write_matrix_mapping(void)
void kimera_scan(void)
{
wdt_reset();
uint8_t ret;
xprintf("exp in use: %d\n", exp_in_use);
xprintf("exp online: %d\n", exp_online);
for (uint8_t exp = 0; exp < EXP_COUNT; exp++) {
ret = i2c_start(EXP_ADDR(exp) | I2C_READ);
if (exp_status & (1<<exp)) {
if (exp_in_use & (1<<exp)) {
ret = i2c_start(EXP_ADDR(exp) | I2C_WRITE);
if (ret == 0) {
i2c_stop();
if ((exp_online & (1<<exp)) == 0) {
xprintf("found: %d\n", exp);
exp_online |= (1<<exp);
expander_init(exp);
clear_keyboard();
}
}
else {
if ((exp_online & (1<<exp)) != 0) {
xprintf("lost: %d\n", exp);
exp_online &= ~(1<<exp);
clear_keyboard();
}
}
#if 0
if (exp_online & (1<<exp)) {
if (ret) {
dprintf("lost: %d\n", exp);
exp_status &= ~(1<<exp);
xprintf("lost: %d\n", exp);
exp_online &= ~(1<<exp);
clear_keyboard();
}
}
else {
if (!ret) {
dprintf("found: %d\n", exp);
exp_status |= (1<<exp);
xprintf("found: %d\n", exp);
exp_online |= (1<<exp);
i2c_stop();
expander_init(exp);
clear_keyboard();
}
else {
i2c_stop();
}
}
#endif
}
}
}
@ -359,6 +397,9 @@ void expander_init(uint8_t exp)
uint8_t expander_write(uint8_t exp, uint8_t command, uint8_t *data)
{
wdt_reset();
if ((exp_online & (1<<exp)) == 0) {
return 0;
}
uint8_t addr = EXP_ADDR(exp);
uint8_t ret;
ret = i2c_start(addr | I2C_WRITE);
@ -376,6 +417,9 @@ stop:
uint8_t expander_read(uint8_t exp, uint8_t command, uint8_t *data)
{
wdt_reset();
if ((exp_online & (1<<exp)) == 0) {
return 0;
}
uint8_t addr = EXP_ADDR(exp);
uint8_t ret;
ret = i2c_start(addr | I2C_WRITE);