Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4ce2448c authored by David Keitel's avatar David Keitel
Browse files

power: qpnp-fg: debug: dump sram partitions after first estimate 



Add functionality to dump the battery and scratchpad partition
of the fuel gauge sram after the first estimate is available
from the fuel gauge.

This is only done when the module parameter first_est_dump is
enabled. Otherwise this work is not scheduled.

Change-Id: Id1994ea903c66a0db0c583324c2d1b75ebcfecc3
Signed-off-by: default avatarDavid Keitel <dkeitel@codeaurora.org>
parent ccc80175

drivers/power/qpnp-fg.c

+55 −3
Original line number Diff line number Diff line
@@ -161,6 +161,11 @@ module_param_named( 
	debug_mask, fg_debug_mask, int, S_IRUSR | S_IWUSR

);



static int fg_est_dump;

module_param_named(

	first_est_dump, fg_est_dump, int, S_IRUSR | S_IWUSR

);



struct fg_irq {

	int			irq;

	unsigned long		disabled;
@@ -214,6 +219,7 @@ struct fg_chip { 
	struct power_supply	bms_psy;

	struct mutex		rw_lock;

	struct work_struct	batt_profile_init;

	struct work_struct	dump_sram;

	bool			profile_loaded;

	bool			use_otp_profile;

	struct delayed_work	update_jeita_setting;
@@ -290,9 +296,9 @@ static void fill_string(char *str, size_t str_len, u8 *buf, int buf_len) 
	int i;



	for (i = 0; i < buf_len; i++) {

		pos += scnprintf(str + pos, str_len - pos, "0x%02X", buf[i]);

		pos += scnprintf(str + pos, str_len - pos, "%02X", buf[i]);

		if (i < buf_len - 1)

			pos += scnprintf(str + pos, str_len - pos, ", ");

			pos += scnprintf(str + pos, str_len - pos, " ");

	}

}
@@ -1007,6 +1013,47 @@ static int fg_property_is_writeable(struct power_supply *psy, 
	return 0;

}



#define SCRATCHPAD_OFFSET	0x540

#define BATT_PROFILE_OFFSET	0x4C0

#define SCRATCHPAD_LEN		192

static void dump_sram(struct work_struct *work)

{

	int i, rc;

	u8 buffer[4];

	u16 addr = BATT_PROFILE_OFFSET;

	char str[16];

	struct fg_chip *chip = container_of(work,

				struct fg_chip,

				dump_sram);



	for (i = 0; i < chip->batt_profile_len; i += 4) {

		rc = fg_mem_read(chip, buffer, addr, 4, 0,

				i >= chip->batt_profile_len ? 0 : 1);

		if (rc) {

			pr_err("read failed: addr=%03X, rc=%d\n", addr, rc);

			break;

		}

		str[0] = '\0';

		fill_string(str, DEBUG_PRINT_BUFFER_SIZE, buffer, 4);

		pr_info("%03X %s\n", addr, str);

		addr += 4;

	}



	addr = SCRATCHPAD_OFFSET;

	for (i = 0; i < SCRATCHPAD_LEN; i += 4) {

		rc = fg_mem_read(chip, buffer, addr, 4, 0,

				i >= SCRATCHPAD_LEN ? 0 : 1);

		if (rc) {

			pr_err("read failed: addr=%03X, rc=%d\n", addr, rc);

			break;

		}

		str[0] = '\0';

		fill_string(str, DEBUG_PRINT_BUFFER_SIZE, buffer, 4);

		pr_info("%03X %s\n", addr, str);

		addr += 4;

	}

}



static irqreturn_t fg_mem_avail_irq_handler(int irq, void *_chip)

{

	struct fg_chip *chip = _chip;
@@ -1068,6 +1115,9 @@ static irqreturn_t fg_first_soc_irq_handler(int irq, void *_chip) 
	if (fg_debug_mask & FG_IRQS)

		pr_info("triggered\n");



	if (fg_est_dump)

		schedule_work(&chip->dump_sram);



	power_supply_changed(&chip->bms_psy);

	return IRQ_HANDLED;

}
@@ -1160,7 +1210,7 @@ wait: 
	}

	chip->fast_access = true;



	rc = fg_mem_write(chip, chip->batt_profile, 0x4C0,

	rc = fg_mem_write(chip, chip->batt_profile, BATT_PROFILE_OFFSET,

			chip->batt_profile_len, 0, 1);

	if (rc)

		pr_err("failed to write profile rc=%d\n", rc);
@@ -1363,6 +1413,7 @@ static int fg_remove(struct spmi_device *spmi) 
	mutex_destroy(&chip->rw_lock);

	cancel_delayed_work_sync(&chip->update_jeita_setting);

	cancel_work_sync(&chip->batt_profile_init);

	cancel_work_sync(&chip->dump_sram);

	power_supply_unregister(&chip->bms_psy);

	dev_set_drvdata(&spmi->dev, NULL);

	return 0;
@@ -1791,6 +1842,7 @@ static int fg_probe(struct spmi_device *spmi) 
	INIT_DELAYED_WORK(&chip->update_sram_data, update_sram_data);

	INIT_WORK(&chip->batt_profile_init,

			batt_profile_init);

	INIT_WORK(&chip->dump_sram, dump_sram);

	init_completion(&chip->sram_access);

	init_completion(&chip->batt_id_avail);