waterDataDiscreteRateMining memoryOperation.c 袁明明 commit at 2020-09-15

waterDataDiscreteRateMining/dataSharedMemory/memoryOperation.c

@@ -175,3 +175,61 @@ inline int check_gpio(unsigned gpio)
 	    || gpio == GPIO_PJ14 || gpio == GPIO_PJ15)
 		return -EINVAL;
 #endif
+	if (gpio >= MAX_BLACKFIN_GPIOS)
+		return -EINVAL;
+	return 0;
+}
+
+static void port_setup(unsigned gpio, unsigned short usage)
+{
+#if defined(BF538_FAMILY)
+	/*
+	 * BF538/9 Port C,D and E are special.
+	 * Inverted PORT_FER polarity on CDE and no PORF_FER on F
+	 * Regular PORT F GPIOs are handled here, CDE are exclusively
+	 * managed by GPIOLIB
+	 */
+
+	if (gpio < MAX_BLACKFIN_GPIOS || gpio >= MAX_RESOURCES)
+		return;
+
+	gpio -= MAX_BLACKFIN_GPIOS;
+
+	if (usage == GPIO_USAGE)
+		*port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
+	else
+		*port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
+	SSYNC();
+	return;
+#endif
+
+	if (check_gpio(gpio))
+		return;
+
+#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x)
+	if (usage == GPIO_USAGE)
+		*port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
+	else
+		*port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
+	SSYNC();
+#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
+	if (usage == GPIO_USAGE)
+		gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio);
+	else
+		gpio_array[gpio_bank(gpio)]->port_fer |= gpio_bit(gpio);
+	SSYNC();
+#endif
+}
+
+#ifdef BF537_FAMILY
+static const s8 port_mux[] = {
+	[GPIO_PF0] = 3,
+	[GPIO_PF1] = 3,
+	[GPIO_PF2] = 4,
+	[GPIO_PF3] = 4,
+	[GPIO_PF4] = 5,
+	[GPIO_PF5] = 6,
+	[GPIO_PF6] = 7,
+	[GPIO_PF7] = 8,
+	[GPIO_PF8 ... GPIO_PF15] = -1,
+	[GPIO_PG0 ... GPIO_PG7] = -1,