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# A visualization library for the TMK keyboard firmware

This library is designed to work together with the [TMK keyboard firmware](https://github.com/tmk/tmk_keyboard). Currently it only works for [Chibios](http://www.chibios.org/)
 flavors, but it would be possible to add support for other configurations as well. The LCD display functionality is provided by the [uGFX library](https://ugfx.io/). 

## To use this library as a user
You can and should modify the visualizer\_user.c file. Check the comments in the file for more information.

## To add this library to custom keyboard projects

1. Add tmk_visualizer as a submodule to your project
1. Set VISUALIZER_DIR in the main keyboard project makefile to point to the submodule
1. Define LCD\_ENABLE and/or LCD\_BACKLIGHT\_ENABLE, to enable support
1. Include the visualizer.mk make file
1. Copy the files in the example\_integration folder to your keyboard project
1. All other files than the callback.c file are included automatically, so you will need to add callback.c to your makefile manually. If you already have a similar file in your project, you can just copy the functions instead of the whole file.
1. Edit the files to match your hardware. You might might want to read the Chibios and UGfx documentation, for more information.
1. If you enable LCD support you might also have to write a custom uGFX display driver, check the uGFX documentation for that. You probably also want to enable SPI support in your Chibios configuration.
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From 023e530aa86c95352dfc97df960ee0039ef2c030 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Wed, 20 Jan 2016 09:55:08 +0100
Subject: [PATCH 39/66] soc: mediatek: PMIC wrap: add a slave specific struct

This patch adds a new struct pwrap_slv_type that we use to store the slave
specific data. The patch adds 2 new helper functions to access the dew
registers. The slave type is looked up via the wrappers child node.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/soc/mediatek/mtk-pmic-wrap.c |  159 ++++++++++++++++++++++++----------
 1 file changed, 112 insertions(+), 47 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index a2bacda..bcc841e 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -69,33 +69,54 @@
 					  PWRAP_WDT_SRC_EN_HARB_STAUPD_DLE | \
 					  PWRAP_WDT_SRC_EN_HARB_STAUPD_ALE)
 
-/* macro for slave device wrapper registers */
-#define PWRAP_DEW_BASE			0xbc00
-#define PWRAP_DEW_EVENT_OUT_EN		(PWRAP_DEW_BASE + 0x0)
-#define PWRAP_DEW_DIO_EN		(PWRAP_DEW_BASE + 0x2)
-#define PWRAP_DEW_EVENT_SRC_EN		(PWRAP_DEW_BASE + 0x4)
-#define PWRAP_DEW_EVENT_SRC		(PWRAP_DEW_BASE + 0x6)
-#define PWRAP_DEW_EVENT_FLAG		(PWRAP_DEW_BASE + 0x8)
-#define PWRAP_DEW_READ_TEST		(PWRAP_DEW_BASE + 0xa)
-#define PWRAP_DEW_WRITE_TEST		(PWRAP_DEW_BASE + 0xc)
-#define PWRAP_DEW_CRC_EN		(PWRAP_DEW_BASE + 0xe)
-#define PWRAP_DEW_CRC_VAL		(PWRAP_DEW_BASE + 0x10)
-#define PWRAP_DEW_MON_GRP_SEL		(PWRAP_DEW_BASE + 0x12)
-#define PWRAP_DEW_MON_FLAG_SEL		(PWRAP_DEW_BASE + 0x14)
-#define PWRAP_DEW_EVENT_TEST		(PWRAP_DEW_BASE + 0x16)
-#define PWRAP_DEW_CIPHER_KEY_SEL	(PWRAP_DEW_BASE + 0x18)
-#define PWRAP_DEW_CIPHER_IV_SEL		(PWRAP_DEW_BASE + 0x1a)
-#define PWRAP_DEW_CIPHER_LOAD		(PWRAP_DEW_BASE + 0x1c)
-#define PWRAP_DEW_CIPHER_START		(PWRAP_DEW_BASE + 0x1e)
-#define PWRAP_DEW_CIPHER_RDY		(PWRAP_DEW_BASE + 0x20)
-#define PWRAP_DEW_CIPHER_MODE		(PWRAP_DEW_BASE + 0x22)
-#define PWRAP_DEW_CIPHER_SWRST		(PWRAP_DEW_BASE + 0x24)
-#define PWRAP_MT8173_DEW_CIPHER_IV0	(PWRAP_DEW_BASE + 0x26)
-#define PWRAP_MT8173_DEW_CIPHER_IV1	(PWRAP_DEW_BASE + 0x28)
-#define PWRAP_MT8173_DEW_CIPHER_IV2	(PWRAP_DEW_BASE + 0x2a)
-#define PWRAP_MT8173_DEW_CIPHER_IV3	(PWRAP_DEW_BASE + 0x2c)
-#define PWRAP_MT8173_DEW_CIPHER_IV4	(PWRAP_DEW_BASE + 0x2e)
-#define PWRAP_MT8173_DEW_CIPHER_IV5	(PWRAP_DEW_BASE + 0x30)
+/* defines for slave device wrapper registers */
+enum dew_regs {
+	PWRAP_DEW_BASE,
+	PWRAP_DEW_DIO_EN,
+	PWRAP_DEW_READ_TEST,
+	PWRAP_DEW_WRITE_TEST,
+	PWRAP_DEW_CRC_EN,
+	PWRAP_DEW_CRC_VAL,
+	PWRAP_DEW_MON_GRP_SEL,
+	PWRAP_DEW_CIPHER_KEY_SEL,
+	PWRAP_DEW_CIPHER_IV_SEL,
+	PWRAP_DEW_CIPHER_RDY,
+	PWRAP_DEW_CIPHER_MODE,
+	PWRAP_DEW_CIPHER_SWRST,
+
+	/* MT6397 only regs */
+	PWRAP_DEW_EVENT_OUT_EN,
+	PWRAP_DEW_EVENT_SRC_EN,
+	PWRAP_DEW_EVENT_SRC,
+	PWRAP_DEW_EVENT_FLAG,
+	PWRAP_DEW_MON_FLAG_SEL,
+	PWRAP_DEW_EVENT_TEST,
+	PWRAP_DEW_CIPHER_LOAD,
+	PWRAP_DEW_CIPHER_START,
+};
+
+static const u32 mt6397_regs[] = {
+	[PWRAP_DEW_BASE] =		0xbc00,
+	[PWRAP_DEW_EVENT_OUT_EN] =	0xbc00,
+	[PWRAP_DEW_DIO_EN] =		0xbc02,
+	[PWRAP_DEW_EVENT_SRC_EN] =	0xbc04,
+	[PWRAP_DEW_EVENT_SRC] =		0xbc06,
+	[PWRAP_DEW_EVENT_FLAG] =	0xbc08,
+	[PWRAP_DEW_READ_TEST] =		0xbc0a,
+	[PWRAP_DEW_WRITE_TEST] =	0xbc0c,
+	[PWRAP_DEW_CRC_EN] =		0xbc0e,
+	[PWRAP_DEW_CRC_VAL] =		0xbc10,
+	[PWRAP_DEW_MON_GRP_SEL] =	0xbc12,
+	[PWRAP_DEW_MON_FLAG_SEL] =	0xbc14,
+	[PWRAP_DEW_EVENT_TEST] =	0xbc16,
+	[PWRAP_DEW_CIPHER_KEY_SEL] =	0xbc18,
+	[PWRAP_DEW_CIPHER_IV_SEL] =	0xbc1a,
+	[PWRAP_DEW_CIPHER_LOAD] =	0xbc1c,
+	[PWRAP_DEW_CIPHER_START] =	0xbc1e,
+	[PWRAP_DEW_CIPHER_RDY] =	0xbc20,
+	[PWRAP_DEW_CIPHER_MODE] =	0xbc22,
+	[PWRAP_DEW_CIPHER_SWRST] =	0xbc24,
+};
 
 enum pwrap_regs {
 	PWRAP_MUX_SEL,
@@ -349,16 +370,26 @@ static int mt8135_regs[] = {
 	[PWRAP_DCM_DBC_PRD] =		0x160,
 };
 
+enum pmic_type {
+	PMIC_MT6397,
+};
+
 enum pwrap_type {
 	PWRAP_MT8135,
 	PWRAP_MT8173,
 };
 
+struct pwrap_slv_type {
+	const u32 *dew_regs;
+	enum pmic_type type;
+};
+
 struct pmic_wrapper {
 	struct device *dev;
 	void __iomem *base;
 	struct regmap *regmap;
 	const struct pmic_wrapper_type *master;
+	const struct pwrap_slv_type *slave;
 	struct clk *clk_spi;
 	struct clk *clk_wrap;
 	struct reset_control *rstc;
@@ -544,7 +575,8 @@ static int pwrap_init_sidly(struct pmic_wrapper *wrp)
 
 	for (i = 0; i < 4; i++) {
 		pwrap_writel(wrp, i, PWRAP_SIDLY);
-		pwrap_read(wrp, PWRAP_DEW_READ_TEST, &rdata);
+		pwrap_read(wrp, wrp->slave->dew_regs[PWRAP_DEW_READ_TEST],
+			   &rdata);
 		if (rdata == PWRAP_DEW_READ_TEST_VAL) {
 			dev_dbg(wrp->dev, "[Read Test] pass, SIDLY=%x\n", i);
 			pass |= 1 << i;
@@ -593,7 +625,8 @@ static bool pwrap_is_pmic_cipher_ready(struct pmic_wrapper *wrp)
 	u32 rdata;
 	int ret;
 
-	ret = pwrap_read(wrp, PWRAP_DEW_CIPHER_RDY, &rdata);
+	ret = pwrap_read(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_RDY],
+			 &rdata);
 	if (ret)
 		return 0;
 
@@ -621,12 +654,12 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
 	}
 
 	/* Config cipher mode @PMIC */
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x1);
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x0);
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_KEY_SEL, 0x1);
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_IV_SEL, 0x2);
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_LOAD, 0x1);
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_START, 0x1);
+	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_SWRST], 0x1);
+	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_SWRST], 0x0);
+	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_KEY_SEL], 0x1);
+	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_IV_SEL], 0x2);
+	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_LOAD], 0x1);
+	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_START], 0x1);
 
 	/* wait for cipher data ready@AP */
 	ret = pwrap_wait_for_state(wrp, pwrap_is_cipher_ready);
@@ -643,7 +676,7 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
 	}
 
 	/* wait for cipher mode idle */
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_MODE, 0x1);
+	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_MODE], 0x1);
 	ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle_and_sync_idle);
 	if (ret) {
 		dev_err(wrp->dev, "cipher mode idle fail, ret=%d\n", ret);
@@ -653,9 +686,11 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
 	pwrap_writel(wrp, 1, PWRAP_CIPHER_MODE);
 
 	/* Write Test */
-	if (pwrap_write(wrp, PWRAP_DEW_WRITE_TEST, PWRAP_DEW_WRITE_TEST_VAL) ||
-	    pwrap_read(wrp, PWRAP_DEW_WRITE_TEST, &rdata) ||
-			(rdata != PWRAP_DEW_WRITE_TEST_VAL)) {
+	if (pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_WRITE_TEST],
+			PWRAP_DEW_WRITE_TEST_VAL) ||
+	    pwrap_read(wrp, wrp->slave->dew_regs[PWRAP_DEW_WRITE_TEST],
+		       &rdata) ||
+	    (rdata != PWRAP_DEW_WRITE_TEST_VAL)) {
 		dev_err(wrp->dev, "rdata=0x%04X\n", rdata);
 		return -EFAULT;
 	}
@@ -677,8 +712,10 @@ static int pwrap_mt8135_init_soc_specific(struct pmic_wrapper *wrp)
 	writel(0x7ff, wrp->bridge_base + PWRAP_MT8135_BRIDGE_INT_EN);
 
 	/* enable PMIC event out and sources */
-	if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
-		pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
+	if (pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_EVENT_OUT_EN],
+			0x1) ||
+	    pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_EVENT_SRC_EN],
+			0xffff)) {
 		dev_err(wrp->dev, "enable dewrap fail\n");
 		return -EFAULT;
 	}
@@ -689,8 +726,10 @@ static int pwrap_mt8135_init_soc_specific(struct pmic_wrapper *wrp)
 static int pwrap_mt8173_init_soc_specific(struct pmic_wrapper *wrp)
 {
 	/* PMIC_DEWRAP enables */
-	if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
-		pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
+	if (pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_EVENT_OUT_EN],
+			0x1) ||
+	    pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_EVENT_SRC_EN],
+			0xffff)) {
 		dev_err(wrp->dev, "enable dewrap fail\n");
 		return -EFAULT;
 	}
@@ -734,7 +773,7 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 		return ret;
 
 	/* Enable dual IO mode */
-	pwrap_write(wrp, PWRAP_DEW_DIO_EN, 1);
+	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_DIO_EN], 1);
 
 	/* Check IDLE & INIT_DONE in advance */
 	ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle_and_sync_idle);
@@ -746,7 +785,7 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 	pwrap_writel(wrp, 1, PWRAP_DIO_EN);
 
 	/* Read Test */
-	pwrap_read(wrp, PWRAP_DEW_READ_TEST, &rdata);
+	pwrap_read(wrp, wrp->slave->dew_regs[PWRAP_DEW_READ_TEST], &rdata);
 	if (rdata != PWRAP_DEW_READ_TEST_VAL) {
 		dev_err(wrp->dev, "Read test failed after switch to DIO mode: 0x%04x != 0x%04x\n",
 				PWRAP_DEW_READ_TEST_VAL, rdata);
@@ -759,12 +798,13 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 		return ret;
 
 	/* Signature checking - using CRC */
-	if (pwrap_write(wrp, PWRAP_DEW_CRC_EN, 0x1))
+	if (pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CRC_EN], 0x1))
 		return -EFAULT;
 
 	pwrap_writel(wrp, 0x1, PWRAP_CRC_EN);
 	pwrap_writel(wrp, 0x0, PWRAP_SIG_MODE);
-	pwrap_writel(wrp, PWRAP_DEW_CRC_VAL, PWRAP_SIG_ADR);
+	pwrap_writel(wrp, wrp->slave->dew_regs[PWRAP_DEW_CRC_VAL],
+		     PWRAP_SIG_ADR);
 	pwrap_writel(wrp, wrp->master->arb_en_all, PWRAP_HIPRIO_ARB_EN);
 
 	if (wrp->master->type == PWRAP_MT8135)
@@ -818,6 +858,21 @@ static const struct regmap_config pwrap_regmap_config = {
 	.max_register = 0xffff,
 };
 
+static const struct pwrap_slv_type pmic_mt6397 = {
+	.dew_regs = mt6397_regs,
+	.type = PMIC_MT6397,
+};
+
+static const struct of_device_id of_slave_match_tbl[] = {
+	{
+		.compatible = "mediatek,mt6397",
+		.data = &pmic_mt6397,
+	}, {
+		/* sentinel */
+	}
+};
+MODULE_DEVICE_TABLE(of, of_slave_match_tbl);
+
 static struct pmic_wrapper_type pwrap_mt8135 = {
 	.regs = mt8135_regs,
 	.type = PWRAP_MT8135,
@@ -862,8 +917,17 @@ static int pwrap_probe(struct platform_device *pdev)
 	struct device_node *np = pdev->dev.of_node;
 	const struct of_device_id *of_id =
 		of_match_device(of_pwrap_match_tbl, &pdev->dev);
+	const struct of_device_id *of_slave_id = NULL;
 	struct resource *res;
 
+	if (pdev->dev.of_node->child)
+		of_slave_id = of_match_node(of_slave_match_tbl,
+					    pdev->dev.of_node->child);
+	if (!of_slave_id) {
+		dev_dbg(&pdev->dev, "slave pmic should be defined in dts\n");
+		return -EINVAL;
+	}
+
 	wrp = devm_kzalloc(&pdev->dev, sizeof(*wrp), GFP_KERNEL);
 	if (!wrp)
 		return -ENOMEM;
@@ -871,6 +935,7 @@ static int pwrap_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, wrp);
 
 	wrp->master = of_id->data;
+	wrp->slave = of_slave_id->data;
 	wrp->dev = &pdev->dev;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pwrap");
-- 
1.7.10.4