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Commit d64ca26a authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "msm: wcnss: Add the support to access IRIS registers using bit-bang"

parents 7c7b8d35 638cce88

arch/arm/mach-msm/board-8226-gpiomux.c

+163 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
 *

 */



#include <linux/gpio.h>

#include <linux/init.h>

#include <linux/ioport.h>

#include <mach/board.h>
@@ -18,6 +19,12 @@ 
#include <mach/gpiomux.h>

#include <soc/qcom/socinfo.h>



#define WLAN_CLK	44

#define WLAN_SET	43

#define WLAN_DATA0	42

#define WLAN_DATA1	41

#define WLAN_DATA2	40



#ifdef CONFIG_USB_EHCI_MSM_HSIC

static struct gpiomux_setting hsic_sus_cfg = {

	.func = GPIOMUX_FUNC_GPIO,
@@ -140,6 +147,18 @@ static struct gpiomux_setting wcnss_5wire_active_cfg = { 
	.pull = GPIOMUX_PULL_DOWN,

};



static struct gpiomux_setting wcnss_5gpio_suspend_cfg = {

	.func = GPIOMUX_FUNC_GPIO,

	.drv  = GPIOMUX_DRV_2MA,

	.pull = GPIOMUX_PULL_UP,

};



static struct gpiomux_setting wcnss_5gpio_active_cfg = {

	.func = GPIOMUX_FUNC_GPIO,

	.drv  = GPIOMUX_DRV_6MA,

	.pull = GPIOMUX_PULL_DOWN,

};



static struct gpiomux_setting gpio_i2c_config = {

	.func = GPIOMUX_FUNC_3,

	.drv = GPIOMUX_DRV_2MA,
@@ -520,6 +539,44 @@ static struct msm_gpiomux_config wcnss_5wire_interface[] = { 
	},

};



static struct msm_gpiomux_config wcnss_5gpio_interface[] = {

	{

		.gpio = 40,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 41,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 42,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 43,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 44,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

};



static struct gpiomux_setting gpio_suspend_config[] = {

	{

		.func = GPIOMUX_FUNC_GPIO,  /* IN-NP */
@@ -861,3 +918,109 @@ void __init msm8226_init_gpiomux(void) 
	msm_gpiomux_install(msm_hsic_configs, ARRAY_SIZE(msm_hsic_configs));

#endif

}



static void wcnss_switch_to_gpio(void)

{

	/* Switch MUX to GPIO */

	msm_gpiomux_install(wcnss_5gpio_interface,

			ARRAY_SIZE(wcnss_5gpio_interface));



	/* Ensure GPIO config */

	gpio_direction_input(WLAN_DATA2);

	gpio_direction_input(WLAN_DATA1);

	gpio_direction_input(WLAN_DATA0);

	gpio_direction_output(WLAN_SET, 0);

	gpio_direction_output(WLAN_CLK, 0);

}



static void wcnss_switch_to_5wire(void)

{

	msm_gpiomux_install(wcnss_5wire_interface,

			ARRAY_SIZE(wcnss_5wire_interface));

}



u32 wcnss_rf_read_reg(u32 rf_reg_addr)

{

	int count = 0;

	u32 rf_cmd_and_addr = 0;

	u32 rf_data_received = 0;

	u32 rf_bit = 0;



	wcnss_switch_to_gpio();



	/* Reset the signal if it is already being used. */

	gpio_set_value(WLAN_SET, 0);

	gpio_set_value(WLAN_CLK, 0);



	/* We start with cmd_set high WLAN_SET = 1. */

	gpio_set_value(WLAN_SET, 1);



	gpio_direction_output(WLAN_DATA0, 1);

	gpio_direction_output(WLAN_DATA1, 1);

	gpio_direction_output(WLAN_DATA2, 1);



	gpio_set_value(WLAN_DATA0, 0);

	gpio_set_value(WLAN_DATA1, 0);

	gpio_set_value(WLAN_DATA2, 0);



	/* Prepare command and RF register address that need to sent out.

	 * Make sure that we send only 14 bits from LSB.

	 */

	rf_cmd_and_addr  = (((WLAN_RF_READ_REG_CMD) |

		(rf_reg_addr << WLAN_RF_REG_ADDR_START_OFFSET)) &

		WLAN_RF_READ_CMD_MASK);



	for (count = 0; count < 5; count++) {

		gpio_set_value(WLAN_CLK, 0);



		rf_bit = (rf_cmd_and_addr & 0x1);

		gpio_set_value(WLAN_DATA0, rf_bit ? 1 : 0);

		rf_cmd_and_addr = (rf_cmd_and_addr >> 1);



		rf_bit = (rf_cmd_and_addr & 0x1);

		gpio_set_value(WLAN_DATA1, rf_bit ? 1 : 0);

		rf_cmd_and_addr = (rf_cmd_and_addr >> 1);



		rf_bit = (rf_cmd_and_addr & 0x1);

		gpio_set_value(WLAN_DATA2, rf_bit ? 1 : 0);

		rf_cmd_and_addr = (rf_cmd_and_addr >> 1);



		/* Send the data out WLAN_CLK = 1 */

		gpio_set_value(WLAN_CLK, 1);

	}



	/* Pull down the clock signal */

	gpio_set_value(WLAN_CLK, 0);



	/* Configure data pins to input IO pins */

	gpio_direction_input(WLAN_DATA0);

	gpio_direction_input(WLAN_DATA1);

	gpio_direction_input(WLAN_DATA2);



	for (count = 0; count < 2; count++) {

		gpio_set_value(WLAN_CLK, 1);

		gpio_set_value(WLAN_CLK, 0);

	}



	rf_bit = 0;

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

		gpio_set_value(WLAN_CLK, 1);

		gpio_set_value(WLAN_CLK, 0);



		rf_bit = gpio_get_value(WLAN_DATA0);

		rf_data_received |= (rf_bit << (count * 3 + 0));



		if (count != 5) {

			rf_bit = gpio_get_value(WLAN_DATA1);

			rf_data_received |= (rf_bit << (count * 3 + 1));



			rf_bit = gpio_get_value(WLAN_DATA2);

			rf_data_received |= (rf_bit << (count * 3 + 2));

		}

	}



	gpio_set_value(WLAN_SET, 0);

	wcnss_switch_to_5wire();



	return rf_data_received;

}

arch/arm/mach-msm/board-8610-gpiomux.c

+163 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
 *

 */



#include <linux/gpio.h>

#include <linux/init.h>

#include <linux/ioport.h>

#include <mach/board.h>
@@ -18,6 +19,12 @@ 
#include <mach/gpiomux.h>

#include <soc/qcom/socinfo.h>



#define WLAN_CLK	27

#define WLAN_SET	26

#define WLAN_DATA0	25

#define WLAN_DATA1	24

#define WLAN_DATA2	23



static struct gpiomux_setting gpio_spi_config = {

	.func = GPIOMUX_FUNC_1,

	.drv = GPIOMUX_DRV_6MA,
@@ -112,6 +119,18 @@ static struct gpiomux_setting wcnss_5wire_active_cfg = { 
	.pull = GPIOMUX_PULL_DOWN,

};



static struct gpiomux_setting wcnss_5gpio_suspend_cfg = {

	.func = GPIOMUX_FUNC_GPIO,

	.drv  = GPIOMUX_DRV_2MA,

	.pull = GPIOMUX_PULL_UP,

};



static struct gpiomux_setting wcnss_5gpio_active_cfg = {

	.func = GPIOMUX_FUNC_GPIO,

	.drv  = GPIOMUX_DRV_6MA,

	.pull = GPIOMUX_PULL_DOWN,

};



static struct gpiomux_setting lcd_en_act_cfg = {

	.func = GPIOMUX_FUNC_GPIO,

	.drv = GPIOMUX_DRV_8MA,
@@ -404,6 +423,44 @@ static struct msm_gpiomux_config wcnss_5wire_interface[] = { 
	},

};



static struct msm_gpiomux_config wcnss_5gpio_interface[] = {

	{

		.gpio = 23,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 24,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 25,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 26,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 27,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

};



static struct gpiomux_setting gpio_suspend_config[] = {

	{

		.func = GPIOMUX_FUNC_GPIO,  /* IN-NP */
@@ -663,3 +720,109 @@ void __init msm8610_init_gpiomux(void) 
			ARRAY_SIZE(msm_non_qrd_configs));

	}

}



static void wcnss_switch_to_gpio(void)

{

	/* Switch MUX to GPIO */

	msm_gpiomux_install(wcnss_5gpio_interface,

			ARRAY_SIZE(wcnss_5gpio_interface));



	/* Ensure GPIO config */

	gpio_direction_input(WLAN_DATA2);

	gpio_direction_input(WLAN_DATA1);

	gpio_direction_input(WLAN_DATA0);

	gpio_direction_output(WLAN_SET, 0);

	gpio_direction_output(WLAN_CLK, 0);

}



static void wcnss_switch_to_5wire(void)

{

	msm_gpiomux_install(wcnss_5wire_interface,

			ARRAY_SIZE(wcnss_5wire_interface));

}



u32 wcnss_rf_read_reg(u32 rf_reg_addr)

{

	int count = 0;

	u32 rf_cmd_and_addr = 0;

	u32 rf_data_received = 0;

	u32 rf_bit = 0;



	wcnss_switch_to_gpio();



	/* Reset the signal if it is already being used. */

	gpio_set_value(WLAN_SET, 0);

	gpio_set_value(WLAN_CLK, 0);



	/* We start with cmd_set high WLAN_SET = 1. */

	gpio_set_value(WLAN_SET, 1);



	gpio_direction_output(WLAN_DATA0, 1);

	gpio_direction_output(WLAN_DATA1, 1);

	gpio_direction_output(WLAN_DATA2, 1);



	gpio_set_value(WLAN_DATA0, 0);

	gpio_set_value(WLAN_DATA1, 0);

	gpio_set_value(WLAN_DATA2, 0);



	/* Prepare command and RF register address that need to sent out.

	 * Make sure that we send only 14 bits from LSB.

	 */

	rf_cmd_and_addr  = (((WLAN_RF_READ_REG_CMD) |

		(rf_reg_addr << WLAN_RF_REG_ADDR_START_OFFSET)) &

		WLAN_RF_READ_CMD_MASK);



	for (count = 0; count < 5; count++) {

		gpio_set_value(WLAN_CLK, 0);



		rf_bit = (rf_cmd_and_addr & 0x1);

		gpio_set_value(WLAN_DATA0, rf_bit ? 1 : 0);

		rf_cmd_and_addr = (rf_cmd_and_addr >> 1);



		rf_bit = (rf_cmd_and_addr & 0x1);

		gpio_set_value(WLAN_DATA1, rf_bit ? 1 : 0);

		rf_cmd_and_addr = (rf_cmd_and_addr >> 1);



		rf_bit = (rf_cmd_and_addr & 0x1);

		gpio_set_value(WLAN_DATA2, rf_bit ? 1 : 0);

		rf_cmd_and_addr = (rf_cmd_and_addr >> 1);



		/* Send the data out WLAN_CLK = 1 */

		gpio_set_value(WLAN_CLK, 1);

	}



	/* Pull down the clock signal */

	gpio_set_value(WLAN_CLK, 0);



	/* Configure data pins to input IO pins */

	gpio_direction_input(WLAN_DATA0);

	gpio_direction_input(WLAN_DATA1);

	gpio_direction_input(WLAN_DATA2);



	for (count = 0; count < 2; count++) {

		gpio_set_value(WLAN_CLK, 1);

		gpio_set_value(WLAN_CLK, 0);

	}



	rf_bit = 0;

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

		gpio_set_value(WLAN_CLK, 1);

		gpio_set_value(WLAN_CLK, 0);



		rf_bit = gpio_get_value(WLAN_DATA0);

		rf_data_received |= (rf_bit << (count * 3 + 0));



		if (count != 5) {

			rf_bit = gpio_get_value(WLAN_DATA1);

			rf_data_received |= (rf_bit << (count * 3 + 1));



			rf_bit = gpio_get_value(WLAN_DATA2);

			rf_data_received |= (rf_bit << (count * 3 + 2));

		}

	}



	gpio_set_value(WLAN_SET, 0);

	wcnss_switch_to_5wire();



	return rf_data_received;

}

arch/arm/mach-msm/board-8974-gpiomux.c

+162 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
 *

 */



#include <linux/gpio.h>

#include <linux/init.h>

#include <linux/ioport.h>

#include <mach/board.h>
@@ -20,6 +21,12 @@ 


#define KS8851_IRQ_GPIO 94



#define WLAN_CLK	40

#define WLAN_SET	39

#define WLAN_DATA0	38

#define WLAN_DATA1	37

#define WLAN_DATA2	36



static struct gpiomux_setting ap2mdm_cfg = {

	.func = GPIOMUX_FUNC_GPIO,

	.drv = GPIOMUX_DRV_8MA,
@@ -205,6 +212,18 @@ static struct gpiomux_setting wcnss_5wire_active_cfg = { 
	.pull = GPIOMUX_PULL_DOWN,

};



static struct gpiomux_setting wcnss_5gpio_suspend_cfg = {

	.func = GPIOMUX_FUNC_GPIO,

	.drv  = GPIOMUX_DRV_2MA,

	.pull = GPIOMUX_PULL_UP,

};



static struct gpiomux_setting wcnss_5gpio_active_cfg = {

	.func = GPIOMUX_FUNC_GPIO,

	.drv  = GPIOMUX_DRV_6MA,

	.pull = GPIOMUX_PULL_DOWN,

};



static struct gpiomux_setting ath_gpio_active_cfg = {

	.func = GPIOMUX_FUNC_GPIO,

	.drv = GPIOMUX_DRV_2MA,
@@ -1155,6 +1174,43 @@ static struct msm_gpiomux_config wcnss_5wire_interface[] = { 
	},

};



static struct msm_gpiomux_config wcnss_5gpio_interface[] = {

	{

		.gpio = 36,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 37,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 38,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 39,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

	{

		.gpio = 40,

		.settings = {

			[GPIOMUX_ACTIVE]    = &wcnss_5gpio_active_cfg,

			[GPIOMUX_SUSPENDED] = &wcnss_5gpio_suspend_cfg,

		},

	},

};



static struct msm_gpiomux_config ath_gpio_configs[] = {

	{
@@ -1526,3 +1582,109 @@ void __init msm_8974_init_gpiomux(void) 
		msm_gpiomux_install(apq8074_interposer_config,

			ARRAY_SIZE(apq8074_interposer_config));

}



static void wcnss_switch_to_gpio(void)

{

	/* Switch MUX to GPIO */

	msm_gpiomux_install(wcnss_5gpio_interface,

			ARRAY_SIZE(wcnss_5gpio_interface));



	/* Ensure GPIO config */

	gpio_direction_input(WLAN_DATA2);

	gpio_direction_input(WLAN_DATA1);

	gpio_direction_input(WLAN_DATA0);

	gpio_direction_output(WLAN_SET, 0);

	gpio_direction_output(WLAN_CLK, 0);

}



static void wcnss_switch_to_5wire(void)

{

	msm_gpiomux_install(wcnss_5wire_interface,

			ARRAY_SIZE(wcnss_5wire_interface));

}



u32 wcnss_rf_read_reg(u32 rf_reg_addr)

{

	int count = 0;

	u32 rf_cmd_and_addr = 0;

	u32 rf_data_received = 0;

	u32 rf_bit = 0;



	wcnss_switch_to_gpio();



	/* Reset the signal if it is already being used. */

	gpio_set_value(WLAN_SET, 0);

	gpio_set_value(WLAN_CLK, 0);



	/* We start with cmd_set high WLAN_SET = 1. */

	gpio_set_value(WLAN_SET, 1);



	gpio_direction_output(WLAN_DATA0, 1);

	gpio_direction_output(WLAN_DATA1, 1);

	gpio_direction_output(WLAN_DATA2, 1);



	gpio_set_value(WLAN_DATA0, 0);

	gpio_set_value(WLAN_DATA1, 0);

	gpio_set_value(WLAN_DATA2, 0);



	/* Prepare command and RF register address that need to sent out.

	 * Make sure that we send only 14 bits from LSB.

	 */

	rf_cmd_and_addr  = (((WLAN_RF_READ_REG_CMD) |

		(rf_reg_addr << WLAN_RF_REG_ADDR_START_OFFSET)) &

		WLAN_RF_READ_CMD_MASK);



	for (count = 0; count < 5; count++) {

		gpio_set_value(WLAN_CLK, 0);



		rf_bit = (rf_cmd_and_addr & 0x1);

		gpio_set_value(WLAN_DATA0, rf_bit ? 1 : 0);

		rf_cmd_and_addr = (rf_cmd_and_addr >> 1);



		rf_bit = (rf_cmd_and_addr & 0x1);

		gpio_set_value(WLAN_DATA1, rf_bit ? 1 : 0);

		rf_cmd_and_addr = (rf_cmd_and_addr >> 1);



		rf_bit = (rf_cmd_and_addr & 0x1);

		gpio_set_value(WLAN_DATA2, rf_bit ? 1 : 0);

		rf_cmd_and_addr = (rf_cmd_and_addr >> 1);



		/* Send the data out WLAN_CLK = 1 */

		gpio_set_value(WLAN_CLK, 1);

	}



	/* Pull down the clock signal */

	gpio_set_value(WLAN_CLK, 0);



	/* Configure data pins to input IO pins */

	gpio_direction_input(WLAN_DATA0);

	gpio_direction_input(WLAN_DATA1);

	gpio_direction_input(WLAN_DATA2);



	for (count = 0; count < 2; count++) {

		gpio_set_value(WLAN_CLK, 1);

		gpio_set_value(WLAN_CLK, 0);

	}



	rf_bit = 0;

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

		gpio_set_value(WLAN_CLK, 1);

		gpio_set_value(WLAN_CLK, 0);



		rf_bit = gpio_get_value(WLAN_DATA0);

		rf_data_received |= (rf_bit << (count * 3 + 0));



		if (count != 5) {

			rf_bit = gpio_get_value(WLAN_DATA1);

			rf_data_received |= (rf_bit << (count * 3 + 1));



			rf_bit = gpio_get_value(WLAN_DATA2);

			rf_data_received |= (rf_bit << (count * 3 + 2));

		}

	}



	gpio_set_value(WLAN_SET, 0);

	wcnss_switch_to_5wire();



	return rf_data_received;

}

arch/arm/mach-msm/include/mach/board.h

+7 −0
Original line number Diff line number Diff line
@@ -35,6 +35,12 @@ 
#define RF_TYPE_48 0x30

#define RF_TYPE_49 0x31



#define WLAN_RF_REG_ADDR_START_OFFSET   0x3

#define WLAN_RF_REG_DATA_START_OFFSET   0xf

#define WLAN_RF_READ_REG_CMD            0x3

#define WLAN_RF_WRITE_REG_CMD           0x2

#define WLAN_RF_READ_CMD_MASK           0x3fff



struct msm_camera_io_ext {

	uint32_t mdcphy;

	uint32_t mdcsz;
@@ -690,4 +696,5 @@ int smd_debugfs_init(void); 
static inline int smd_debugfs_init(void) { return 0; }

#endif



u32 wcnss_rf_read_reg(u32 rf_reg_addr);

#endif

drivers/net/wireless/wcnss/wcnss_wlan.c

+22 −3
Original line number Diff line number Diff line
@@ -35,11 +35,12 @@ 
#include <linux/rwsem.h>

#include <linux/mfd/pm8xxx/misc.h>

#include <linux/qpnp/qpnp-adc.h>



#include <soc/qcom/subsystem_restart.h>

#include <soc/qcom/subsystem_notif.h>



#include <soc/qcom/smd.h>



#include <mach/board.h>

#include <mach/msm_iomap.h>



#ifdef CONFIG_WCNSS_MEM_PRE_ALLOC
@@ -795,6 +796,22 @@ void wcnss_pronto_log_debug_regs(void) 
EXPORT_SYMBOL(wcnss_pronto_log_debug_regs);



#ifdef CONFIG_WCNSS_REGISTER_DUMP_ON_BITE

static void wcnss_log_iris_regs(void)

{

	int i;

	u32 reg_val;

	u32 regs_array[] = {

		0x04, 0x05, 0x11, 0x1e, 0x40, 0x48,

		0x49, 0x4b, 0x00, 0x01, 0x4d};



	pr_info("IRIS Registers [address] : value\n");



	for (i = 0; i < ARRAY_SIZE(regs_array); i++) {

		reg_val = wcnss_rf_read_reg(regs_array[i]);

		pr_info("[0x%08x] : 0x%08x\n", regs_array[i], reg_val);

	}

}



void wcnss_log_debug_regs_on_bite(void)

{

	struct platform_device *pdev = wcnss_get_platform_device();
@@ -815,10 +832,12 @@ void wcnss_log_debug_regs_on_bite(void) 
		clk_rate = clk_get_rate(measure);

		pr_debug("wcnss: clock frequency is: %luHz\n", clk_rate);



		if (clk_rate)

		if (clk_rate) {

			wcnss_pronto_log_debug_regs();

		else

		} else {

			pr_err("clock frequency is zero, cannot access PMU or other registers\n");

			wcnss_log_iris_regs();

		}

	}

}

#endif