static int usi_bm01a_get_gpio_value(char* name)
{
struct mmc_pm_ops *ops = &mmc_card_pm_ops;
char* bt_hostwake = "usi_bm01a_bt_hostwake";
if (strcmp(name, bt_hostwake)) {
usi_msg("No gpio %s for USI-BM01A\n", name);
return -1;
}
return gpio_read_one_pin_value(ops->pio_hdle, name);
}
static int usi_bm01a_power_onoff(int onoff)
{
struct regulator* wifi_ldo = NULL;
static int first = 1;
#ifndef CONFIG_AW_AXP
usi_msg("AXP driver is disabled, pls check !!\n");
return 0;
#endif
usi_msg("usi_bm01a_power_onoff\n");
wifi_ldo = regulator_get(NULL, "axp20_pll");
if (!wifi_ldo)
usi_msg("Get power regulator failed\n");
if (first) {
usi_msg("first time\n");
regulator_force_disable(wifi_ldo);
first = 0;
}
if (onoff) {
usi_msg("regulator on\n");
regulator_set_voltage(wifi_ldo, 3300000, 3300000);
regulator_enable(wifi_ldo);
} else {
usi_msg("regulator off\n");
regulator_disable(wifi_ldo);
}
return 0;
}
static void usi_bm01a_power(int mode, int* updown)
{
if (mode) {
if (*updown) {
usi_bm01a_gpio_ctrl("usi_bm01a_wl_regon", 1);
usi_bm01a_gpio_ctrl("usi_bm01a_wl_rst", 1);
} else {
usi_bm01a_gpio_ctrl("usi_bm01a_wl_rst", 0);
usi_bm01a_gpio_ctrl("usi_bm01a_wl_regon", 0);
}
} else {
if (usi_bm01a_wl_on)
*updown = 1;
else
*updown = 0;
usi_msg("sdio wifi power state: %s\n", usi_bm01a_wl_on ? "on" : "off");
}
}
static int usi_bm01a_gpio_ctrl(char* name, int level)
{
struct mmc_pm_ops *ops = &mmc_card_pm_ops;
char* gpio_cmd[6] = {"usi_bm01a_wl_regon", "usi_bm01a_bt_regon", "usi_bm01a_wl_rst",
"usi_bm01a_wl_wake", "usi_bm01a_bt_rst", "usi_bm01a_bt_wake"};
int i = 0;
int ret = 0;
for (i=0; i<6; i++) {
if (strcmp(name, gpio_cmd[i])==0)
break;
}
if (i==6) {
usi_msg("No gpio %s for USI-BM01A module\n", name);
return -1;
}
// usi_msg("Set GPIO %s to %d !\n", name, level);
if (strcmp(name, "usi_bm01a_wl_regon") == 0) {
if (level) {
if (usi_bm01a_bt_on) {
usi_msg("USI-BM01A is already powered up by bluetooth\n");
goto change_state;
} else {
usi_msg("USI-BM01A is powered up by wifi\n");
goto power_change;
}
} else {
if (usi_bm01a_bt_on) {
usi_msg("USI-BM01A should stay on because of bluetooth\n");
goto change_state;
} else {
usi_msg("USI-BM01A is powered off by wifi\n");
goto power_change;
}
}
}
if (strcmp(name, "usi_bm01a_bt_regon") == 0) {
if (level) {
if (usi_bm01a_wl_on) {
usi_msg("USI-BM01A is already powered up by wifi\n");
goto change_state;
} else {
usi_msg("USI-BM01A is powered up by bt\n");
goto power_change;
}
} else {
if (usi_bm01a_wl_on) {
usi_msg("USI-BM01A should stay on because of wifi\n");
goto change_state;
} else {
usi_msg("USI-BM01A is powered off by bt\n");
goto power_change;
}
}
}
ret = gpio_write_one_pin_value(ops->pio_hdle, level, name);
if (ret) {
usi_msg("Failed to set gpio %s to %d !\n", name, level);
return -1;
}
return 0;
power_change:
#if CONFIG_CHIP_ID==1123
ret = gpio_write_one_pin_value(ops->pio_hdle, level, "usi_bm01a_wl_pwr");
#elif CONFIG_CHIP_ID==1125
ret = usi_bm01a_power_onoff(level);
#else
#error "Found wrong chip id in wifi onoff\n"
#endif
if (ret) {
usi_msg("Failed to power off USI-BM01A module!\n");
return -1;
}
ret = gpio_write_one_pin_value(ops->pio_hdle, level, "usi_bm01a_wlbt_regon");
if (ret) {
usi_msg("Failed to regon off for USI-BM01A module!\n");
return -1;
}
change_state:
if (strcmp(name, "usi_bm01a_wl_regon")==0)
usi_bm01a_wl_on = level;
if (strcmp(name, "usi_bm01a_bt_regon")==0)
usi_bm01a_bt_on = level;
usi_msg("USI-BM01A power state change: wifi %d, bt %d !!\n", usi_bm01a_wl_on, usi_bm01a_bt_on);
return 0;
}
