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Commit f9f4644d authored by Ajit Kumar's avatar Ajit Kumar
Browse files

sdm429w: Add interface to load BG with TWM firmware 



Load BG with TWM firmware image before enter TWM.
Add interface to load diffrent BG firmware based on the
command.

Change-Id: Id7aef89735d7591b4810011dea5a3483cbb97028
Signed-off-by: default avatarAjit Kumar <kajit@codeaurora.org>
parent 30f1c28e

drivers/soc/qcom/bgcom_interface.c

+65 −0
Original line number Diff line number Diff line
@@ -69,6 +69,10 @@ struct bgdaemon_regulator { 
struct bgdaemon_priv {

	struct bgdaemon_regulator rgltr;

	enum ldo_task ldo_action;

	void *pil_h;

	bool pending_bg_twm_wear_load;

	struct workqueue_struct *bgdaemon_wq;

	struct work_struct bgdaemon_load_twm_bg_work;

};



struct bg_event {
@@ -120,6 +124,20 @@ static int send_uevent(struct bg_event *pce) 
	return kobject_uevent_env(&dev_ret->kobj, KOBJ_CHANGE, envp);

}



static void bgcom_load_twm_bg_work(struct work_struct *work)

{

	if (dev->pil_h) {

		pr_err("bg-wear is already loaded\n");

		subsystem_put(dev->pil_h);

		dev->pil_h = NULL;

	} else {

		dev->pil_h = subsystem_get_with_fwname("bg-wear",

							"bg-twm-wear");

		if (!dev->pil_h)

			pr_err("failed to load bg-twm-wear\n");

	}

}



static int bgdaemon_configure_regulators(bool state)

{

	int retval;
@@ -146,6 +164,7 @@ static int bgdaemon_configure_regulators(bool state) 
	}

	return retval;

}



static int bgdaemon_init_regulators(struct device *pdev)

{

	int rc;
@@ -398,8 +417,35 @@ static long bg_com_ioctl(struct file *filp, 
		bg_app_running = true;

		ret = 0;

		break;

	case BG_WEAR_LOAD:

		ret = 0;

		if (dev->pil_h) {

			pr_err("bg-wear is already loaded\n");

			ret = -EFAULT;

			break;

		}



		dev->pil_h = subsystem_get_with_fwname("bg-wear", "bg-wear");

		if (!dev->pil_h) {

			pr_err("failed to load bg-wear\n");

			ret = -EFAULT;

		}

		break;

	case BG_WEAR_TWM_LOAD:

		dev->pending_bg_twm_wear_load = true;

		queue_work(dev->bgdaemon_wq, &dev->bgdaemon_load_twm_bg_work);

		ret = 0;

		break;

	case BG_WEAR_UNLOAD:

		if (dev->pil_h) {

			subsystem_put(dev->pil_h);

			dev->pil_h = NULL;

		}

		ret = 0;

		break;

	default:

		ret = -ENOIOCTLCMD;

		break;

	}

	return ret;

}
@@ -521,7 +567,19 @@ static int __init init_bg_com_dev(void) 
	if (platform_driver_register(&bg_daemon_driver))

		pr_err("%s: failed to register bg-daemon register\n", __func__);



	dev->bgdaemon_wq =

		create_singlethread_workqueue("bgdaemon-work-queue");

	if (!dev->bgdaemon_wq) {

		pr_err("Failed to init BG-DAEMON work-queue\n");

		goto free_wq;

	}

	INIT_WORK(&dev->bgdaemon_load_twm_bg_work, bgcom_load_twm_bg_work);



	return 0;



free_wq:

	destroy_workqueue(dev->bgdaemon_wq);

	return -EFAULT;

}



static void __exit exit_bg_com_dev(void)
@@ -556,6 +614,12 @@ static int ssr_bg_cb(struct notifier_block *this, 
	case SUBSYS_AFTER_SHUTDOWN:

		/* Add sleep for  SPI Bus to release*/

		msleep(SLEEP_FOR_SPI_BUS);

		if (dev->pending_bg_twm_wear_load) {

			/* Load bg-twm-wear */

			dev->pending_bg_twm_wear_load = false;

			queue_work(dev->bgdaemon_wq,

				&dev->bgdaemon_load_twm_bg_work);

		}

		break;

	case SUBSYS_AFTER_POWERUP:

		bge.e_type = BG_AFTER_POWER_UP;
@@ -596,6 +660,7 @@ static int ssr_modem_cb(struct notifier_block *this, 
	}

	return NOTIFY_DONE;

}



static int ssr_adsp_cb(struct notifier_block *this,

		unsigned long opcode, void *data)

{

include/uapi/linux/bgcom_interface.h

+14 −0
Original line number Diff line number Diff line
@@ -22,6 +22,9 @@ 
#define BGCOM_TWM_EXIT  8

#define BGCOM_BG_APP_RUNNING 9

#define BGCOM_ADSP_DOWN2_BG  10

#define BGCOM_BG_WEAR_LOAD 11

#define BGCOM_BG_WEAR_TWM_LOAD 12

#define BGCOM_BG_WEAR_UNLOAD 13

#define EXCHANGE_CODE  'V'



struct bg_ui_data {
@@ -34,6 +37,8 @@ struct bg_ui_data { 


enum bg_event_type {

	BG_BEFORE_POWER_DOWN = 1,

	BG_AFTER_POWER_DOWN,

	BG_BEFORE_POWER_UP,

	BG_AFTER_POWER_UP,

	MODEM_BEFORE_POWER_DOWN,

	MODEM_AFTER_POWER_UP,
@@ -71,6 +76,15 @@ enum bg_event_type { 
#define BG_MODEM_DOWN2_BG_DONE \

	_IOWR(EXCHANGE_CODE, BGCOM_MODEM_DOWN2_BG, \

	struct bg_ui_data)

#define BG_WEAR_LOAD \

	_IOWR(EXCHANGE_CODE, BGCOM_BG_WEAR_LOAD, \

	struct bg_ui_data)

#define BG_WEAR_TWM_LOAD \

	_IOWR(EXCHANGE_CODE, BGCOM_BG_WEAR_TWM_LOAD, \

	struct bg_ui_data)

#define BG_WEAR_UNLOAD \

	_IOWR(EXCHANGE_CODE, BGCOM_BG_WEAR_UNLOAD, \

	struct bg_ui_data)

#define BG_ADSP_DOWN2_BG_DONE \

	_IOWR(EXCHANGE_CODE, BGCOM_ADSP_DOWN2_BG, \

	struct bg_ui_data)