static int modem_boot_probe(struct platform_device *dev)
{
int ret = 0;
vmdata = kzalloc(sizeof(struct viatel_modem_data), GFP_KERNEL);
if(!vmdata)
{
ret = -ENOMEM;
printk("No memory to alloc vmdata");
goto err_create_vmdata;
}
vmdata->via_pdev = dev;
vmdata->tail = 0;
vmdata->head = 0;
ret = modem_data_init(vmdata);
if(ret < 0)
{
printk("Fail to init modem data\n");
goto err_init_modem_data;
}
ret = device_create_file(&(dev->dev), &dev_attr_state);
if(ret < 0)
{
dev_err(&dev->dev, "Failed to create sysfs entry state\n");
goto err_create_sysfs_state;
}
ret = device_create_file(&(dev->dev), &dev_attr_modem_state);
if(ret < 0)
{
dev_err(&dev->dev, "Failed to create sysfs entry modem_state\n");
goto err_create_sysfs_modem_state;
}
ret = device_create_file(&(dev->dev), &dev_attr_sim_switch);
if(ret < 0)
{
dev_err(&dev->dev, "Failed to create sysfs entry sim_switch\n");
goto err_create_sysfs_sim_switch;
}
ret = oem_get_gpio_number(CBP_VIATEL_RST_IND_STR,&cbp_rst_ind_gpio);
if (ret)
goto err_get_gpio;
pr_info("%s get CBP_VIATEL_RST_IND_STR gpio %d\n", __func__, cbp_rst_ind_gpio);
if(GPIO_OEM_VALID(cbp_rst_ind_gpio)){
ret = oem_gpio_request(cbp_rst_ind_gpio, "GPIO_VIATEL_MDM_RST_IND");
oem_gpio_irq_mask(cbp_rst_ind_gpio);
oem_gpio_direction_input_for_irq(cbp_rst_ind_gpio);
oem_gpio_set_irq_type(cbp_rst_ind_gpio, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING);
ret = oem_gpio_request_irq(cbp_rst_ind_gpio, modem_reset_indication_irq, \
IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_TRIGGER_FALLING, \
"mdm_reset_ind", vmdata);
oem_gpio_irq_unmask(cbp_rst_ind_gpio);
if (ret < 0) {
printk("fail to request mdm_rst_ind irq\n");
}
modem_register_notifier(&vmdata->rst_ntf);
}
ret = oem_get_gpio_number(CBP_VIATEL_PWR_EN_STR, &cbp_pwr_en_gpio);
if (ret)
goto err_get_gpio;
pr_info(">>>> %s get gpio %d\n", __func__, cbp_pwr_en_gpio);
if(GPIO_OEM_VALID(cbp_pwr_en_gpio)){
ret = oem_gpio_request(cbp_pwr_en_gpio, "GPIO_VIATEL_MDM_PWR_EN");
if (0 > ret) {
printk("%s: gpio request GPIO_VIATEL_MDM_PWR_EN failed", __FUNCTION__);
}
oem_gpio_direction_output(cbp_pwr_en_gpio, 0);
}
ret = oem_get_gpio_number(CBP_VIATEL_RST_STR, &cbp_rst_gpio);
if (ret)
goto err_get_gpio;
pr_info(">>>> %s get gpio %d\n", __func__,cbp_rst_gpio);
if(GPIO_OEM_VALID(cbp_rst_gpio)){
ret = oem_gpio_request(cbp_rst_gpio, "GPIO_VIATEL_MDM_RST");
if (0 > ret) {
printk("%s: gpio request GPIO_VIATEL_MDM_RST failed", __FUNCTION__);
}
oem_gpio_direction_output(cbp_rst_gpio, 0);
}
ret = oem_get_gpio_number(CBP_VIATEL_SIM_SWITCH_STR, &cbp_sim_switch_gpio);
if(ret){
printk("%s: Sim connection switch isn't supported on this board", __FUNCTION__);
}else{
printk("%s: Sim connection switch is supported on this board", __FUNCTION__);
}
pr_info(">>>> %s get gpio %d\n", __func__,cbp_sim_switch_gpio);
if(GPIO_OEM_VALID(cbp_sim_switch_gpio)){
ret = oem_gpio_request(cbp_sim_switch_gpio, "GPIO_VIATEL_MDM_SIM_SWITCH");
if(0 > ret){
printk("%s: gpio request GPIO_VIATEL_MDM_PWR_EN failed", __FUNCTION__);
}
oem_gpio_direction_output(cbp_sim_switch_gpio, 0);
}
/*add gpio function to make cp ramdump*/
ret = oem_get_gpio_number(CBP_VIATEL_GPIO_BACKUP_STR, &cbp_backup_gpio);
if (ret)
goto err_get_gpio;
ret = oem_gpio_request(cbp_backup_gpio, "gpio_cbp_crash");
if(0 > ret){
printk("%s: gpio request GPIO_6_0 failed", __FUNCTION__);
}
oem_gpio_direction_output(cbp_backup_gpio, 0);
return 0;
err_get_gpio:
device_remove_file(&(dev->dev), &dev_attr_sim_switch);
err_create_sysfs_sim_switch:
device_remove_file(&(dev->dev), &dev_attr_modem_state);
err_create_sysfs_modem_state:
device_remove_file(&(dev->dev), &dev_attr_state);
err_create_sysfs_state:
err_init_modem_data:
kfree(vmdata);
vmdata = NULL;
err_create_vmdata:
return ret;
}
static int __init modem_init(void)
{
int ret = 0;
vmdata = kzalloc(sizeof(struct viatel_modem_data), GFP_KERNEL);
if(!vmdata){
ret = -ENOMEM;
printk("No memory to alloc vmdata");
goto err_create_vmdata;
}
ret = modem_data_init(vmdata);
if(ret < 0){
printk("Fail to init modem data\n");
goto err_init_modem_data;
}
ret = platform_device_register(&platform_modem_device);
if (ret) {
printk("platform_device_register failed\n");
goto err_platform_device_register;
}
ret = platform_driver_register(&platform_modem_driver);
if (ret) {
printk("platform_driver_register failed\n");
goto err_platform_driver_register;
}
ret = misc_register(&misc_modem_device);
if(ret < 0){
printk("misc regiser via modem failed\n");
goto err_misc_device_register;
}
//make the default ETS output through USB
if(GPIO_OEM_VALID(GPIO_VIATEL_MDM_ETS_SEL)){
oem_gpio_direction_output(GPIO_VIATEL_MDM_ETS_SEL, 0);
}
if(GPIO_OEM_VALID(GPIO_VIATEL_MDM_PWR_IND)){
oem_gpio_irq_mask(GPIO_VIATEL_MDM_PWR_IND);
oem_gpio_direction_input_for_irq(GPIO_VIATEL_MDM_PWR_IND);
oem_gpio_set_irq_type(GPIO_VIATEL_MDM_PWR_IND, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING);
ret = oem_gpio_request_irq(GPIO_VIATEL_MDM_PWR_IND, modem_power_indication_irq, \
IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, \
"mdm_power_ind", vmdata);
oem_gpio_irq_unmask(GPIO_VIATEL_MDM_PWR_IND);
if (ret < 0) {
printk("fail to request mdm_power_ind irq\n");
}
modem_register_notifier(&vmdata->pwr_ntf);
}
if(GPIO_OEM_VALID(GPIO_VIATEL_MDM_RST_IND)){
oem_gpio_irq_mask(GPIO_VIATEL_MDM_RST_IND);
oem_gpio_direction_input_for_irq(GPIO_VIATEL_MDM_RST_IND);
oem_gpio_set_irq_type(GPIO_VIATEL_MDM_RST_IND, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING);
ret = oem_gpio_request_irq(GPIO_VIATEL_MDM_RST_IND, modem_reset_indication_irq, \
IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, \
"mdm_reset_ind", vmdata);
oem_gpio_irq_unmask(GPIO_VIATEL_MDM_RST_IND);
if (ret < 0) {
printk("fail to request mdm_rst_ind irq\n");
}
modem_register_notifier(&vmdata->rst_ntf);
}
//oem_gpio_direction_output(GPIO_VIATEL_MDM_RST, 0);
//oem_gpio_direction_output(GPIO_VIATEL_MDM_PWR_EN, 1);
ret = sysfs_create_group(vmdata->modem_kobj, &g_attr_group);
if(ret){
printk("sysfs_create_group failed\n");
goto err_sysfs_create_group;
}
return 0;
err_sysfs_create_group:
misc_deregister(&misc_modem_device);
err_misc_device_register:
platform_driver_unregister(&platform_modem_driver);
err_platform_driver_register:
platform_device_unregister(&platform_modem_device);
err_platform_device_register:
err_init_modem_data:
kfree(vmdata);
vmdata = NULL;
err_create_vmdata:
return ret;
}
static int modem_boot_probe(struct platform_device *pdev)
{
int ret = 0;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
vmdata = kzalloc(sizeof(struct viatel_modem_data), GFP_KERNEL);
if(!vmdata)
{
ret = -ENOMEM;
hwlog_err("No memory to alloc vmdata");
goto err_create_vmdata;
}
vmdata->via_pdev = pdev;
vmdata->tail = 0;
vmdata->head = 0;
ret = modem_data_init(vmdata);
if(ret < 0)
{
hwlog_err("Fail to init modem data\n");
goto err_init_modem_data;
}
ret = platform_device_register(&viacbp82d_3rd_modem_info);
if (ret) {
hwlog_err( "%s: platform_device_register failed, ret:%d.\n",
__func__, ret);
goto err_register_platform_device;
}
ret = sysfs_create_group(&viacbp82d_3rd_modem_info.dev.kobj, &viacbp82d_3rd_modem_node);
if (ret) {
hwlog_err( "sensor_input_info_init sysfs_create_group error ret =%d", ret);
platform_device_unregister(&viacbp82d_3rd_modem_info);
goto err_create_sysfs_group;
}
ret = of_property_read_u32(np, "via_reset_ind_connect_to_codec", &cbp_reset_ind_connect_to_codec);
if(ret) {
hwlog_err("can't get cbp_reset_ind_connect_to_codec property in viacbp82d_power device node\n");
goto err_get_gpio;
}
hwlog_info("get cbp_reset_ind_connect_to_codec:%u\n", cbp_reset_ind_connect_to_codec);
/* rst_ind is connect to hi6402 codec in fifa */
cbp_rst_ind_gpio = of_get_named_gpio(np, "via_reset_ind", 0);//gpio is 254
hwlog_info("%s get CBP_VIATEL_RST_IND_STR gpio %d\n", __func__, cbp_rst_ind_gpio);
if(GPIO_OEM_VALID(cbp_rst_ind_gpio)){
int irq = 0;
ret = oem_gpio_request(cbp_rst_ind_gpio, "GPIO_VIATEL_MDM_RST_IND");
if(ret < 0 )
{
hwlog_err("%s:%d gpio_request %d fail, return:%d\n", __func__, __LINE__, cbp_rst_ind_gpio, ret);
}
oem_gpio_irq_mask(cbp_rst_ind_gpio);
ret = oem_gpio_direction_input_for_irq(cbp_rst_ind_gpio);
if(ret < 0 )
{
hwlog_err("%s:%d gpio_direction_inout_for_irq %d fail, return:%d\n", __func__, __LINE__, cbp_rst_ind_gpio, ret);
}
irq = oem_gpio_to_irq(cbp_rst_ind_gpio);
hwlog_info("%s:%d cbp_rst_ind_gpio:%d irq is:%d\n", __func__, __LINE__, cbp_rst_ind_gpio, irq);
oem_gpio_set_irq_type(cbp_rst_ind_gpio, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING);
if( cbp_reset_ind_connect_to_codec ) {
//connected to hi6402, then use task context api to register irq handler.
ret = oem_gpio_request_threaded_irq(cbp_rst_ind_gpio, modem_reset_indication_irq, \
IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_TRIGGER_FALLING, \
"mdm_reset_ind", vmdata);
} else {
ret = oem_gpio_request_irq(cbp_rst_ind_gpio, modem_reset_indication_irq, \
IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_TRIGGER_FALLING, \
"mdm_reset_ind", vmdata);
}
oem_gpio_irq_unmask(cbp_rst_ind_gpio);
if (ret < 0) {
hwlog_err("%s:%d fail to request mdm_rst_ind %d irq, return:%d\n", __func__, __LINE__, cbp_rst_ind_gpio, ret);
}
hwlog_info("%s:%d gpio via_reset_ind %d init successfully\n", __func__, __LINE__, cbp_rst_ind_gpio);
modem_register_notifier(&vmdata->rst_ntf);
} else {
hwlog_err("%s:%d via_reset_ind is invalid gpio\n", __func__, __LINE__);
goto err_get_gpio;
}
cbp_pwr_en_gpio = of_get_named_gpio(np, "via_pwr_en", 0);
hwlog_info("%s get CBP_VIATEL_PWR_EN_STR gpio %d\n", __func__, cbp_pwr_en_gpio);
if(GPIO_OEM_VALID(cbp_pwr_en_gpio)){
ret = oem_gpio_request(cbp_pwr_en_gpio, "GPIO_VIATEL_MDM_PWR_EN");
if (0 > ret) {
hwlog_err("%s: gpio request GPIO_VIATEL_MDM_PWR_EN failed", __FUNCTION__);
}
oem_gpio_direction_output(cbp_pwr_en_gpio, 0);
} else {
goto err_get_gpio;
}
cbp_rst_gpio = of_get_named_gpio(np, "via_rst_mdm", 0);
hwlog_info("%s get CBP_VIATEL_CBP_RST_STR gpio %d\n", __func__, cbp_rst_gpio);
if(GPIO_OEM_VALID(cbp_rst_gpio)){
ret = oem_gpio_request(cbp_rst_gpio, "GPIO_VIATEL_MDM_RST");
if (0 > ret) {
hwlog_err("%s: gpio request GPIO_VIATEL_MDM_RST failed", __FUNCTION__);
}
oem_gpio_direction_output(cbp_rst_gpio, 0);
} else {
goto err_get_gpio;
}
#if 0 //don't delete. there is no gpio for sim switch
cbp_sim_switch_gpio = of_get_named_gpio(np, "via_sim_switch", 0);
hwlog_info("%s get CBP_VIATEL_CBP_SIM_SWITCH gpio %d\n", __func__, cbp_sim_switch_gpio);
if(GPIO_OEM_VALID(cbp_sim_switch_gpio)){
ret = oem_gpio_request(cbp_sim_switch_gpio, "GPIO_VIATEL_MDM_SIM_SWITCH");
if(0 > ret){
hwlog_err("%s: gpio request GPIO_VIATEL_MDM_SIM_SWITCH failed", __FUNCTION__);
}
oem_gpio_direction_output(cbp_sim_switch_gpio, 0);
} else {
goto err_get_gpio;
}
#endif
/*add gpio function to make cp ramdump*/
cbp_backup_gpio = of_get_named_gpio(np, "via_backup", 0);
hwlog_info("%s get CBP_VIATEL_CBP_BACKUP gpio %d\n", __func__, cbp_backup_gpio);
if(GPIO_OEM_VALID(cbp_backup_gpio)){
ret = oem_gpio_request(cbp_backup_gpio, "gpio_cbp_crash");
if(0 > ret){
hwlog_err("%s: gpio request gpio_cbp_crash failed", __FUNCTION__);
}
oem_gpio_direction_output(cbp_backup_gpio, 0);
setup_timer(&cbp_backup_timer, cbp_backup_check_ramdump_timer, (unsigned long)NULL);
} else {
goto err_get_gpio;
}
return 0;
err_get_gpio:
sysfs_remove_group(&viacbp82d_3rd_modem_info.dev.kobj, &viacbp82d_3rd_modem_node);
err_create_sysfs_group:
platform_device_unregister(&viacbp82d_3rd_modem_info);
err_register_platform_device:
err_init_modem_data:
kfree(vmdata);
vmdata = NULL;
err_create_vmdata:
return ret;
}
