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Commit 740d7b10 authored by Bingzhe Cai's avatar Bingzhe Cai Committed by Gerrit - the friendly Code Review server
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input: touchscreen: ft5x06: add FT5336 firmware update support 



FT5336 use new firmware bootloader, current dirver cannot update
its firmware. Driver needs update to support this new firmware
bootloader.

  This patch is propagated from 3.10 kernel
  commit: 88e67aa69a1e9606c35651a86bae6ef10dff8f0e
  input: touchscreen: ft5x06: add FT5336 firmware update support

CRs-Fixed: 567511
Change-Id: I5c210097a6b3daedce52c4dda806c698cda63968
Signed-off-by: default avatarBingzhe Cai <bingzhec@codeaurora.org>
parent 15725c24

drivers/input/touchscreen/ft5x06_ts.c

+109 −23
Original line number Diff line number Diff line
@@ -131,8 +131,9 @@ 
#define FT_FW_PKT_DLY_MS	20

#define FT_FW_LAST_PKT		0x6ffa

#define FT_EARSE_DLY_MS		100

#define FT_55_AA_DLY_NS		5000



#define FT_UPGRADE_LOOP		10

#define FT_UPGRADE_LOOP		30

#define FT_CAL_START		0x04

#define FT_CAL_FIN		0x00

#define FT_CAL_STORE		0x05
@@ -142,6 +143,30 @@ 


#define FT_INFO_MAX_LEN		512



#define FT_BLOADER_SIZE_OFF	12

#define FT_BLOADER_NEW_SIZE	30

#define FT_DATA_LEN_OFF_OLD_FW	8

#define FT_DATA_LEN_OFF_NEW_FW	14

#define FT_FINISHING_PKT_LEN_OLD_FW	6

#define FT_FINISHING_PKT_LEN_NEW_FW	12

#define FT_MAGIC_BLOADER_Z7	0x7bfa

#define FT_MAGIC_BLOADER_LZ4	0x6ffa

#define FT_MAGIC_BLOADER_GZF_30	0x7ff4

#define FT_MAGIC_BLOADER_GZF	0x7bf4



enum {

	FT_BLOADER_VERSION_LZ4 = 0,

	FT_BLOADER_VERSION_Z7 = 1,

	FT_BLOADER_VERSION_GZF = 2,

};



enum {

	FT_FT5336_FAMILY_ID_0x11 = 0x11,

	FT_FT5336_FAMILY_ID_0x12 = 0x12,

	FT_FT5336_FAMILY_ID_0x13 = 0x13,

	FT_FT5336_FAMILY_ID_0x14 = 0x14,

};



#define FT_STORE_TS_INFO(buf, id, name, max_tch, group_id, fw_vkey_support, \

			fw_name, fw_maj, fw_min, fw_sub_min) \

			snprintf(buf, FT_INFO_MAX_LEN, \
@@ -645,11 +670,20 @@ static int ft5x06_fw_upgrade_start(struct i2c_client *client, 
	u8 reset_reg;

	u8 w_buf[FT_MAX_WR_BUF] = {0}, r_buf[FT_MAX_RD_BUF] = {0};

	u8 pkt_buf[FT_FW_PKT_LEN + FT_FW_PKT_META_LEN];

	int rc, i, j, temp;

	int i, j, temp;

	u32 pkt_num, pkt_len;

	u8 is_5336_new_bootloader = false;

	u8 is_5336_fwsize_30 = false;

	u8 fw_ecc;



	/* determine firmware size */

	if (*(data + data_len - FT_BLOADER_SIZE_OFF) == FT_BLOADER_NEW_SIZE)

		is_5336_fwsize_30 = true;

	else

		is_5336_fwsize_30 = false;



	for (i = 0, j = 0; i < FT_UPGRADE_LOOP; i++) {

		msleep(FT_EARSE_DLY_MS);

		/* reset - write 0xaa and 0x55 to reset register */

		if (ts_data->family_id == FT6X06_ID)

			reset_reg = FT_RST_CMD_REG2;
@@ -660,16 +694,17 @@ static int ft5x06_fw_upgrade_start(struct i2c_client *client, 
		msleep(info.delay_aa);



		ft5x0x_write_reg(client, reset_reg, FT_UPGRADE_55);

		msleep(info.delay_55);

		if (i <= (FT_UPGRADE_LOOP / 2))

			msleep(info.delay_55 + i * 3);

		else

			msleep(info.delay_55 - (i - (FT_UPGRADE_LOOP / 2)) * 2);



		/* Enter upgrade mode */

		w_buf[0] = FT_UPGRADE_55;

		w_buf[1] = FT_UPGRADE_AA;

		do {

			j++;

			rc = ft5x06_i2c_write(client, w_buf, 2);

			msleep(FT_RETRY_DLY);

		} while (rc <= 0 && j < FT_MAX_TRIES);

		ft5x06_i2c_write(client, w_buf, 1);

		usleep(FT_55_AA_DLY_NS);

		w_buf[0] = FT_UPGRADE_AA;

		ft5x06_i2c_write(client, w_buf, 1);



		/* check READ_ID */

		msleep(info.delay_readid);
@@ -692,17 +727,40 @@ static int ft5x06_fw_upgrade_start(struct i2c_client *client, 
		return -EIO;

	}



	w_buf[0] = 0xcd;

	ft5x06_i2c_read(client, w_buf, 1, r_buf, 1);



	if (r_buf[0] <= 4)

		is_5336_new_bootloader = FT_BLOADER_VERSION_LZ4;

	else if (r_buf[0] == 7)

		is_5336_new_bootloader = FT_BLOADER_VERSION_Z7;

	else if (r_buf[0] >= 0x0f &&

		((ts_data->family_id == FT_FT5336_FAMILY_ID_0x11) ||

		(ts_data->family_id == FT_FT5336_FAMILY_ID_0x12) ||

		(ts_data->family_id == FT_FT5336_FAMILY_ID_0x13) ||

		(ts_data->family_id == FT_FT5336_FAMILY_ID_0x14)))

		is_5336_new_bootloader = FT_BLOADER_VERSION_GZF;

	else

		is_5336_new_bootloader = FT_BLOADER_VERSION_LZ4;



	/* erase app and panel paramenter area */

	w_buf[0] = FT_ERASE_APP_REG;

	ft5x06_i2c_write(client, w_buf, 1);

	msleep(info.delay_erase_flash);



	if (is_5336_fwsize_30) {

		w_buf[0] = FT_ERASE_PANEL_REG;

		ft5x06_i2c_write(client, w_buf, 1);

	}

	msleep(FT_EARSE_DLY_MS);



	/* program firmware */

	data_len = data_len - 8;

	if (is_5336_new_bootloader == FT_BLOADER_VERSION_LZ4

		|| is_5336_new_bootloader == FT_BLOADER_VERSION_Z7)

		data_len = data_len - FT_DATA_LEN_OFF_OLD_FW;

	else

		data_len = data_len - FT_DATA_LEN_OFF_NEW_FW;



	pkt_num = (data_len) / FT_FW_PKT_LEN;

	pkt_len = FT_FW_PKT_LEN;

	pkt_buf[0] = FT_FW_START_REG;
@@ -745,8 +803,14 @@ static int ft5x06_fw_upgrade_start(struct i2c_client *client, 
	}



	/* send the finishing packet */

	for (i = 0; i < 6; i++) {

		temp = FT_FW_LAST_PKT + i;

	if (is_5336_new_bootloader == FT_BLOADER_VERSION_LZ4 ||

		is_5336_new_bootloader == FT_BLOADER_VERSION_Z7) {

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

			if (is_5336_new_bootloader  == FT_BLOADER_VERSION_Z7)

				temp = FT_MAGIC_BLOADER_Z7 + i;

			else if (is_5336_new_bootloader ==

						FT_BLOADER_VERSION_LZ4)

				temp = FT_MAGIC_BLOADER_LZ4 + i;

			pkt_buf[2] = (u8)(temp >> 8);

			pkt_buf[3] = (u8)temp;

			temp = 1;
@@ -754,8 +818,30 @@ static int ft5x06_fw_upgrade_start(struct i2c_client *client, 
			pkt_buf[5] = (u8)temp;

			pkt_buf[6] = data[data_len + i];

			fw_ecc ^= pkt_buf[6];

		ft5x06_i2c_write(client, pkt_buf, temp + FT_FW_PKT_META_LEN);



			ft5x06_i2c_write(client,

				pkt_buf, temp + FT_FW_PKT_META_LEN);

			msleep(FT_FW_PKT_DLY_MS);

		}

	} else if (is_5336_new_bootloader == FT_BLOADER_VERSION_GZF) {

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

			if (is_5336_fwsize_30)

				temp = FT_MAGIC_BLOADER_GZF_30 + i;

			else

				temp = FT_MAGIC_BLOADER_GZF + i;

			pkt_buf[2] = (u8)(temp >> 8);

			pkt_buf[3] = (u8)temp;

			temp = 1;

			pkt_buf[4] = (u8)(temp >> 8);

			pkt_buf[5] = (u8)temp;

			pkt_buf[6] = data[data_len + i];

			fw_ecc ^= pkt_buf[6];



			ft5x06_i2c_write(client,

				pkt_buf, temp + FT_FW_PKT_META_LEN);

			msleep(FT_FW_PKT_DLY_MS);



		}

	}



	/* verify checksum */