1 /*-
2  * SPDX-License-Identifier: ISC
4  * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
5  * Copyright (c) 2002-2008 Atheros Communications, Inc.
31 #define	AR_NUM_GPIO	6		/* 6 GPIO pins */
32 #define	AR5312_GPIOD_MASK	0x0000002F	/* GPIO data reg r/w mask */
35  * Configure GPIO Output lines
38 ar5312GpioCfgOutput(struct ath_hal *ah, uint32_t gpio, HAL_GPIO_MUX_TYPE type)  in ar5312GpioCfgOutput()  argument
40 	uint32_t gpioOffset = (AR5312_GPIO_BASE - ((uint32_t) ah->ah_sh));  in ar5312GpioCfgOutput()
42 	HALASSERT(gpio < AR_NUM_GPIO);  in ar5312GpioCfgOutput()
45 		  (OS_REG_READ(ah, gpioOffset+AR5312_GPIOCR) &~ AR_GPIOCR_CR_A(gpio))  in ar5312GpioCfgOutput()
46 		| AR_GPIOCR_CR_A(gpio));  in ar5312GpioCfgOutput()
52  * Configure GPIO Input lines
55 ar5312GpioCfgInput(struct ath_hal *ah, uint32_t gpio)  in ar5312GpioCfgInput()  argument
57 	uint32_t gpioOffset = (AR5312_GPIO_BASE - ((uint32_t) ah->ah_sh));  in ar5312GpioCfgInput()
59 	HALASSERT(gpio < AR_NUM_GPIO);  in ar5312GpioCfgInput()
62 		  (OS_REG_READ(ah, gpioOffset+AR5312_GPIOCR) &~ AR_GPIOCR_CR_A(gpio))  in ar5312GpioCfgInput()
63 		| AR_GPIOCR_CR_N(gpio));  in ar5312GpioCfgInput()
69  * Once configured for I/O - set output lines
72 ar5312GpioSet(struct ath_hal *ah, uint32_t gpio, uint32_t val)  in ar5312GpioSet()  argument
75         uint32_t gpioOffset = (AR5312_GPIO_BASE - ((uint32_t) ah->ah_sh));  in ar5312GpioSet()
77 	HALASSERT(gpio < AR_NUM_GPIO);  in ar5312GpioSet()
80 	reg &= ~(1 << gpio);  in ar5312GpioSet()
81 	reg |= (val&1) << gpio;  in ar5312GpioSet()
88  * Once configured for I/O - get input lines
91 ar5312GpioGet(struct ath_hal *ah, uint32_t gpio)  in ar5312GpioGet()  argument
93 	uint32_t gpioOffset = (AR5312_GPIO_BASE - ((uint32_t) ah->ah_sh));  in ar5312GpioGet()
95 	if (gpio < AR_NUM_GPIO) {  in ar5312GpioGet()
97 		val = ((val & AR5312_GPIOD_MASK) >> gpio) & 0x1;  in ar5312GpioGet()
105  * Set the GPIO Interrupt
108 ar5312GpioSetIntr(struct ath_hal *ah, u_int gpio, uint32_t ilevel)  in ar5312GpioSetIntr()  argument
111         uint32_t gpioOffset = (AR5312_GPIO_BASE - ((uint32_t) ah->ah_sh));  in ar5312GpioSetIntr()
113 	/* XXX bounds check gpio */  in ar5312GpioSetIntr()
115 	val &= ~(AR_GPIOCR_CR_A(gpio) |  in ar5312GpioSetIntr()
117 	val |= AR_GPIOCR_CR_N(gpio) | AR_GPIOCR_INT(gpio) | AR_GPIOCR_INT_ENA;  in ar5312GpioSetIntr()
127 	(void) ar5212SetInterrupts(ah, AH5212(ah)->ah_maskReg | HAL_INT_GPIO);  in ar5312GpioSetIntr()