diff options
Diffstat (limited to 'arch/blackfin/cpu/gpio.c')
| -rw-r--r-- | arch/blackfin/cpu/gpio.c | 841 |
1 files changed, 0 insertions, 841 deletions
diff --git a/arch/blackfin/cpu/gpio.c b/arch/blackfin/cpu/gpio.c deleted file mode 100644 index 81b709028f..0000000000 --- a/arch/blackfin/cpu/gpio.c +++ /dev/null @@ -1,841 +0,0 @@ -/* - * ADI GPIO1 Abstraction Layer - * Support BF50x, BF51x, BF52x, BF53x and BF561 only. - * - * Copyright 2006-2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later - */ - -#include <common.h> -#include <linux/errno.h> -#include <asm/gpio.h> -#include <asm/portmux.h> - -#ifndef CONFIG_ADI_GPIO2 -#if ANOMALY_05000311 || ANOMALY_05000323 -enum { - AWA_data = SYSCR, - AWA_data_clear = SYSCR, - AWA_data_set = SYSCR, - AWA_toggle = SYSCR, - AWA_maska = UART_SCR, - AWA_maska_clear = UART_SCR, - AWA_maska_set = UART_SCR, - AWA_maska_toggle = UART_SCR, - AWA_maskb = UART_GCTL, - AWA_maskb_clear = UART_GCTL, - AWA_maskb_set = UART_GCTL, - AWA_maskb_toggle = UART_GCTL, - AWA_dir = SPORT1_STAT, - AWA_polar = SPORT1_STAT, - AWA_edge = SPORT1_STAT, - AWA_both = SPORT1_STAT, -#if ANOMALY_05000311 - AWA_inen = TIMER_ENABLE, -#elif ANOMALY_05000323 - AWA_inen = DMA1_1_CONFIG, -#endif -}; - /* Anomaly Workaround */ -#define AWA_DUMMY_READ(name) bfin_read16(AWA_ ## name) -#else -#define AWA_DUMMY_READ(...) do { } while (0) -#endif - -static struct gpio_port_t * const gpio_array[] = { -#if defined(BF533_FAMILY) - (struct gpio_port_t *) FIO_FLAG_D, -#elif defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x) \ - || defined(BF538_FAMILY) || defined(CONFIG_BF50x) - (struct gpio_port_t *) PORTFIO, -# if !defined(BF538_FAMILY) - (struct gpio_port_t *) PORTGIO, - (struct gpio_port_t *) PORTHIO, -# endif -#elif defined(BF561_FAMILY) - (struct gpio_port_t *) FIO0_FLAG_D, - (struct gpio_port_t *) FIO1_FLAG_D, - (struct gpio_port_t *) FIO2_FLAG_D, -#else -# error no gpio arrays defined -#endif -}; - -#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x) || \ - defined(CONFIG_BF50x) -static unsigned short * const port_fer[] = { - (unsigned short *) PORTF_FER, - (unsigned short *) PORTG_FER, - (unsigned short *) PORTH_FER, -}; - -# if !defined(BF537_FAMILY) -static unsigned short * const port_mux[] = { - (unsigned short *) PORTF_MUX, - (unsigned short *) PORTG_MUX, - (unsigned short *) PORTH_MUX, -}; - -static const -u8 pmux_offset[][16] = { -# if defined(CONFIG_BF52x) - { 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 4, 6, 8, 8, 10, 10 }, /* PORTF */ - { 0, 0, 0, 0, 0, 2, 2, 4, 4, 6, 8, 10, 10, 10, 12, 12 }, /* PORTG */ - { 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 4, 4, 4, 4, 4, 4 }, /* PORTH */ -# elif defined(CONFIG_BF51x) - { 0, 2, 2, 2, 2, 2, 2, 4, 6, 6, 6, 8, 8, 8, 8, 10 }, /* PORTF */ - { 0, 0, 0, 2, 4, 6, 6, 6, 8, 10, 10, 12, 14, 14, 14, 14 }, /* PORTG */ - { 0, 0, 0, 0, 2, 2, 4, 6, 10, 10, 10, 10, 10, 10, 10, 10 }, /* PORTH */ -# endif -}; -# endif - -#elif defined(BF538_FAMILY) -static unsigned short * const port_fer[] = { - (unsigned short *) PORTCIO_FER, - (unsigned short *) PORTDIO_FER, - (unsigned short *) PORTEIO_FER, -}; -#endif - -#ifdef CONFIG_BFIN_GPIO_TRACK -#define RESOURCE_LABEL_SIZE 16 - -static struct str_ident { - char name[RESOURCE_LABEL_SIZE]; -} str_ident[MAX_RESOURCES]; - -static void gpio_error(unsigned gpio) -{ - printf("bfin-gpio: GPIO %d wasn't requested!\n", gpio); -} - -static void set_label(unsigned short ident, const char *label) -{ - if (label) { - strncpy(str_ident[ident].name, label, - RESOURCE_LABEL_SIZE); - str_ident[ident].name[RESOURCE_LABEL_SIZE - 1] = 0; - } -} - -static char *get_label(unsigned short ident) -{ - return (*str_ident[ident].name ? str_ident[ident].name : "UNKNOWN"); -} - -static int cmp_label(unsigned short ident, const char *label) -{ - if (label == NULL) - printf("bfin-gpio: please provide none-null label\n"); - - if (label) - return strcmp(str_ident[ident].name, label); - else - return -EINVAL; -} - -#define map_entry(m, i) reserved_##m##_map[gpio_bank(i)] -#define is_reserved(m, i, e) (map_entry(m, i) & gpio_bit(i)) -#define reserve(m, i) (map_entry(m, i) |= gpio_bit(i)) -#define unreserve(m, i) (map_entry(m, i) &= ~gpio_bit(i)) -#define DECLARE_RESERVED_MAP(m, c) static unsigned short reserved_##m##_map[c] -#else -#define is_reserved(m, i, e) (!(e)) -#define reserve(m, i) -#define unreserve(m, i) -#define DECLARE_RESERVED_MAP(m, c) -#define gpio_error(gpio) -#define set_label(...) -#define get_label(...) "" -#define cmp_label(...) 1 -#endif - -DECLARE_RESERVED_MAP(gpio, GPIO_BANK_NUM); -DECLARE_RESERVED_MAP(peri, gpio_bank(MAX_RESOURCES)); - -inline int check_gpio(unsigned gpio) -{ - 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) || \ - defined(CONFIG_BF50x) - if (usage == GPIO_USAGE) - *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio); - else - *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio); - SSYNC(); -#endif -} - -#ifdef BF537_FAMILY -static struct { - unsigned short res; - unsigned short offset; -} port_mux_lut[] = { - {.res = P_PPI0_D13, .offset = 11}, - {.res = P_PPI0_D14, .offset = 11}, - {.res = P_PPI0_D15, .offset = 11}, - {.res = P_SPORT1_TFS, .offset = 11}, - {.res = P_SPORT1_TSCLK, .offset = 11}, - {.res = P_SPORT1_DTPRI, .offset = 11}, - {.res = P_PPI0_D10, .offset = 10}, - {.res = P_PPI0_D11, .offset = 10}, - {.res = P_PPI0_D12, .offset = 10}, - {.res = P_SPORT1_RSCLK, .offset = 10}, - {.res = P_SPORT1_RFS, .offset = 10}, - {.res = P_SPORT1_DRPRI, .offset = 10}, - {.res = P_PPI0_D8, .offset = 9}, - {.res = P_PPI0_D9, .offset = 9}, - {.res = P_SPORT1_DRSEC, .offset = 9}, - {.res = P_SPORT1_DTSEC, .offset = 9}, - {.res = P_TMR2, .offset = 8}, - {.res = P_PPI0_FS3, .offset = 8}, - {.res = P_TMR3, .offset = 7}, - {.res = P_SPI0_SSEL4, .offset = 7}, - {.res = P_TMR4, .offset = 6}, - {.res = P_SPI0_SSEL5, .offset = 6}, - {.res = P_TMR5, .offset = 5}, - {.res = P_SPI0_SSEL6, .offset = 5}, - {.res = P_UART1_RX, .offset = 4}, - {.res = P_UART1_TX, .offset = 4}, - {.res = P_TMR6, .offset = 4}, - {.res = P_TMR7, .offset = 4}, - {.res = P_UART0_RX, .offset = 3}, - {.res = P_UART0_TX, .offset = 3}, - {.res = P_DMAR0, .offset = 3}, - {.res = P_DMAR1, .offset = 3}, - {.res = P_SPORT0_DTSEC, .offset = 1}, - {.res = P_SPORT0_DRSEC, .offset = 1}, - {.res = P_CAN0_RX, .offset = 1}, - {.res = P_CAN0_TX, .offset = 1}, - {.res = P_SPI0_SSEL7, .offset = 1}, - {.res = P_SPORT0_TFS, .offset = 0}, - {.res = P_SPORT0_DTPRI, .offset = 0}, - {.res = P_SPI0_SSEL2, .offset = 0}, - {.res = P_SPI0_SSEL3, .offset = 0}, -}; - -static void portmux_setup(unsigned short per) -{ - u16 y, offset, muxreg, mask; - u16 function = P_FUNCT2MUX(per); - - for (y = 0; y < ARRAY_SIZE(port_mux_lut); y++) { - if (port_mux_lut[y].res == per) { - - /* SET PORTMUX REG */ - - offset = port_mux_lut[y].offset; - muxreg = bfin_read_PORT_MUX(); - - if (offset == 1) - mask = 3; - else - mask = 1; - - muxreg &= ~(mask << offset); - muxreg |= ((function & mask) << offset); - bfin_write_PORT_MUX(muxreg); - } - } -} -#elif defined(CONFIG_BF52x) || defined(CONFIG_BF51x) -inline void portmux_setup(unsigned short per) -{ - u16 pmux, ident = P_IDENT(per), function = P_FUNCT2MUX(per); - u8 offset = pmux_offset[gpio_bank(ident)][gpio_sub_n(ident)]; - - pmux = *port_mux[gpio_bank(ident)]; - pmux &= ~(3 << offset); - pmux |= (function & 3) << offset; - *port_mux[gpio_bank(ident)] = pmux; - SSYNC(); -} -#else -# define portmux_setup(...) do { } while (0) -#endif - -/*********************************************************** -* -* FUNCTIONS: Blackfin General Purpose Ports Access Functions -* -* INPUTS/OUTPUTS: -* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS -* -* -* DESCRIPTION: These functions abstract direct register access -* to Blackfin processor General Purpose -* Ports Regsiters -* -* CAUTION: These functions do not belong to the GPIO Driver API -************************************************************* -* MODIFICATION HISTORY : -**************************************************************/ - -/* Set a specific bit */ - -#define SET_GPIO(name) \ -void set_gpio_ ## name(unsigned gpio, unsigned short arg) \ -{ \ - unsigned long flags; \ - local_irq_save(flags); \ - if (arg) \ - gpio_array[gpio_bank(gpio)]->name |= gpio_bit(gpio); \ - else \ - gpio_array[gpio_bank(gpio)]->name &= ~gpio_bit(gpio); \ - AWA_DUMMY_READ(name); \ - local_irq_restore(flags); \ -} - -SET_GPIO(dir) /* set_gpio_dir() */ -SET_GPIO(inen) /* set_gpio_inen() */ -SET_GPIO(polar) /* set_gpio_polar() */ -SET_GPIO(edge) /* set_gpio_edge() */ -SET_GPIO(both) /* set_gpio_both() */ - - -#define SET_GPIO_SC(name) \ -void set_gpio_ ## name(unsigned gpio, unsigned short arg) \ -{ \ - unsigned long flags; \ - if (ANOMALY_05000311 || ANOMALY_05000323) \ - local_irq_save(flags); \ - if (arg) \ - gpio_array[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \ - else \ - gpio_array[gpio_bank(gpio)]->name ## _clear = gpio_bit(gpio); \ - if (ANOMALY_05000311 || ANOMALY_05000323) { \ - AWA_DUMMY_READ(name); \ - local_irq_restore(flags); \ - } \ -} - -SET_GPIO_SC(maska) -SET_GPIO_SC(maskb) -SET_GPIO_SC(data) - -void set_gpio_toggle(unsigned gpio) -{ - unsigned long flags; - if (ANOMALY_05000311 || ANOMALY_05000323) - local_irq_save(flags); - gpio_array[gpio_bank(gpio)]->toggle = gpio_bit(gpio); - if (ANOMALY_05000311 || ANOMALY_05000323) { - AWA_DUMMY_READ(toggle); - local_irq_restore(flags); - } -} - -/* Set current PORT date (16-bit word) */ - -#define SET_GPIO_P(name) \ -void set_gpiop_ ## name(unsigned gpio, unsigned short arg) \ -{ \ - unsigned long flags; \ - if (ANOMALY_05000311 || ANOMALY_05000323) \ - local_irq_save(flags); \ - gpio_array[gpio_bank(gpio)]->name = arg; \ - if (ANOMALY_05000311 || ANOMALY_05000323) { \ - AWA_DUMMY_READ(name); \ - local_irq_restore(flags); \ - } \ -} - -SET_GPIO_P(data) -SET_GPIO_P(dir) -SET_GPIO_P(inen) -SET_GPIO_P(polar) -SET_GPIO_P(edge) -SET_GPIO_P(both) -SET_GPIO_P(maska) -SET_GPIO_P(maskb) - -/* Get a specific bit */ -#define GET_GPIO(name) \ -unsigned short get_gpio_ ## name(unsigned gpio) \ -{ \ - unsigned long flags; \ - unsigned short ret; \ - if (ANOMALY_05000311 || ANOMALY_05000323) \ - local_irq_save(flags); \ - ret = 0x01 & (gpio_array[gpio_bank(gpio)]->name >> gpio_sub_n(gpio)); \ - if (ANOMALY_05000311 || ANOMALY_05000323) { \ - AWA_DUMMY_READ(name); \ - local_irq_restore(flags); \ - } \ - return ret; \ -} - -GET_GPIO(data) -GET_GPIO(dir) -GET_GPIO(inen) -GET_GPIO(polar) -GET_GPIO(edge) -GET_GPIO(both) -GET_GPIO(maska) -GET_GPIO(maskb) - -/* Get current PORT date (16-bit word) */ - -#define GET_GPIO_P(name) \ -unsigned short get_gpiop_ ## name(unsigned gpio) \ -{ \ - unsigned long flags; \ - unsigned short ret; \ - if (ANOMALY_05000311 || ANOMALY_05000323) \ - local_irq_save(flags); \ - ret = (gpio_array[gpio_bank(gpio)]->name); \ - if (ANOMALY_05000311 || ANOMALY_05000323) { \ - AWA_DUMMY_READ(name); \ - local_irq_restore(flags); \ - } \ - return ret; \ -} - -GET_GPIO_P(data) -GET_GPIO_P(dir) -GET_GPIO_P(inen) -GET_GPIO_P(polar) -GET_GPIO_P(edge) -GET_GPIO_P(both) -GET_GPIO_P(maska) -GET_GPIO_P(maskb) - -/*********************************************************** -* -* FUNCTIONS: Blackfin Peripheral Resource Allocation -* and PortMux Setup -* -* INPUTS/OUTPUTS: -* per Peripheral Identifier -* label String -* -* DESCRIPTION: Blackfin Peripheral Resource Allocation and Setup API -* -* CAUTION: -************************************************************* -* MODIFICATION HISTORY : -**************************************************************/ - -int peripheral_request(unsigned short per, const char *label) -{ - unsigned short ident = P_IDENT(per); - - /* - * Don't cares are pins with only one dedicated function - */ - - if (per & P_DONTCARE) - return 0; - - if (!(per & P_DEFINED)) - return -ENODEV; - - BUG_ON(ident >= MAX_RESOURCES); - - /* If a pin can be muxed as either GPIO or peripheral, make - * sure it is not already a GPIO pin when we request it. - */ - if (unlikely(!check_gpio(ident) && is_reserved(gpio, ident, 1))) { - printf("%s: Peripheral %d is already reserved as GPIO by %s !\n", - __func__, ident, get_label(ident)); - return -EBUSY; - } - - if (unlikely(is_reserved(peri, ident, 1))) { - - /* - * Pin functions like AMC address strobes my - * be requested and used by several drivers - */ - - if (!(per & P_MAYSHARE)) { - /* - * Allow that the identical pin function can - * be requested from the same driver twice - */ - - if (cmp_label(ident, label) == 0) - goto anyway; - - printf("%s: Peripheral %d function %d is already reserved by %s !\n", - __func__, ident, P_FUNCT2MUX(per), get_label(ident)); - return -EBUSY; - } - } - - anyway: - reserve(peri, ident); - - portmux_setup(per); - port_setup(ident, PERIPHERAL_USAGE); - - set_label(ident, label); - - return 0; -} - -int peripheral_request_list(const unsigned short per[], const char *label) -{ - u16 cnt; - int ret; - - for (cnt = 0; per[cnt] != 0; cnt++) { - - ret = peripheral_request(per[cnt], label); - - if (ret < 0) { - for ( ; cnt > 0; cnt--) - peripheral_free(per[cnt - 1]); - - return ret; - } - } - - return 0; -} - -void peripheral_free(unsigned short per) -{ - unsigned short ident = P_IDENT(per); - - if (per & P_DONTCARE) - return; - - if (!(per & P_DEFINED)) - return; - - if (unlikely(!is_reserved(peri, ident, 0))) - return; - - if (!(per & P_MAYSHARE)) - port_setup(ident, GPIO_USAGE); - - unreserve(peri, ident); - - set_label(ident, "free"); -} - -void peripheral_free_list(const unsigned short per[]) -{ - u16 cnt; - for (cnt = 0; per[cnt] != 0; cnt++) - peripheral_free(per[cnt]); -} - -/*********************************************************** -* -* FUNCTIONS: Blackfin GPIO Driver -* -* INPUTS/OUTPUTS: -* gpio PIO Number between 0 and MAX_BLACKFIN_GPIOS -* label String -* -* DESCRIPTION: Blackfin GPIO Driver API -* -* CAUTION: -************************************************************* -* MODIFICATION HISTORY : -**************************************************************/ - -int gpio_request(unsigned gpio, const char *label) -{ - if (check_gpio(gpio) < 0) - return -EINVAL; - - /* - * Allow that the identical GPIO can - * be requested from the same driver twice - * Do nothing and return - - */ - - if (cmp_label(gpio, label) == 0) - return 0; - - if (unlikely(is_reserved(gpio, gpio, 1))) { - printf("bfin-gpio: GPIO %d is already reserved by %s !\n", - gpio, get_label(gpio)); - return -EBUSY; - } - if (unlikely(is_reserved(peri, gpio, 1))) { - printf("bfin-gpio: GPIO %d is already reserved as Peripheral by %s !\n", - gpio, get_label(gpio)); - return -EBUSY; - } - else { /* Reset POLAR setting when acquiring a gpio for the first time */ - set_gpio_polar(gpio, 0); - } - - reserve(gpio, gpio); - set_label(gpio, label); - - port_setup(gpio, GPIO_USAGE); - - return 0; -} - -int gpio_free(unsigned gpio) -{ - if (check_gpio(gpio) < 0) - return -1; - - if (unlikely(!is_reserved(gpio, gpio, 0))) { - gpio_error(gpio); - return -1; - } - - unreserve(gpio, gpio); - - set_label(gpio, "free"); - - return 0; -} - -#ifdef ADI_SPECIAL_GPIO_BANKS -DECLARE_RESERVED_MAP(special_gpio, gpio_bank(MAX_RESOURCES)); - -int special_gpio_request(unsigned gpio, const char *label) -{ - /* - * Allow that the identical GPIO can - * be requested from the same driver twice - * Do nothing and return - - */ - - if (cmp_label(gpio, label) == 0) - return 0; - - if (unlikely(is_reserved(special_gpio, gpio, 1))) { - printf("bfin-gpio: GPIO %d is already reserved by %s !\n", - gpio, get_label(gpio)); - return -EBUSY; - } - if (unlikely(is_reserved(peri, gpio, 1))) { - printf("bfin-gpio: GPIO %d is already reserved as Peripheral by %s !\n", - gpio, get_label(gpio)); - - return -EBUSY; - } - - reserve(special_gpio, gpio); - reserve(peri, gpio); - - set_label(gpio, label); - port_setup(gpio, GPIO_USAGE); - - return 0; -} - -void special_gpio_free(unsigned gpio) -{ - if (unlikely(!is_reserved(special_gpio, gpio, 0))) { - gpio_error(gpio); - return; - } - - unreserve(special_gpio, gpio); - unreserve(peri, gpio); - set_label(gpio, "free"); -} -#endif - -static inline void __gpio_direction_input(unsigned gpio) -{ - gpio_array[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio); - gpio_array[gpio_bank(gpio)]->inen |= gpio_bit(gpio); -} - -int gpio_direction_input(unsigned gpio) -{ - unsigned long flags; - - if (!is_reserved(gpio, gpio, 0)) { - gpio_error(gpio); - return -EINVAL; - } - - local_irq_save(flags); - __gpio_direction_input(gpio); - AWA_DUMMY_READ(inen); - local_irq_restore(flags); - - return 0; -} - -int gpio_set_value(unsigned gpio, int arg) -{ - if (arg) - gpio_array[gpio_bank(gpio)]->data_set = gpio_bit(gpio); - else - gpio_array[gpio_bank(gpio)]->data_clear = gpio_bit(gpio); - - return 0; -} - -int gpio_direction_output(unsigned gpio, int value) -{ - unsigned long flags; - - if (!is_reserved(gpio, gpio, 0)) { - gpio_error(gpio); - return -EINVAL; - } - - local_irq_save(flags); - - gpio_array[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio); - gpio_set_value(gpio, value); - gpio_array[gpio_bank(gpio)]->dir |= gpio_bit(gpio); - - AWA_DUMMY_READ(dir); - local_irq_restore(flags); - - return 0; -} - -int gpio_get_value(unsigned gpio) -{ - unsigned long flags; - - if (unlikely(get_gpio_edge(gpio))) { - int ret; - local_irq_save(flags); - set_gpio_edge(gpio, 0); - ret = get_gpio_data(gpio); - set_gpio_edge(gpio, 1); - local_irq_restore(flags); - return ret; - } else - return get_gpio_data(gpio); -} - -/* If we are booting from SPI and our board lacks a strong enough pull up, - * the core can reset and execute the bootrom faster than the resistor can - * pull the signal logically high. To work around this (common) error in - * board design, we explicitly set the pin back to GPIO mode, force /CS - * high, and wait for the electrons to do their thing. - * - * This function only makes sense to be called from reset code, but it - * lives here as we need to force all the GPIO states w/out going through - * BUG() checks and such. - */ -void bfin_reset_boot_spi_cs(unsigned short pin) -{ - unsigned short gpio = P_IDENT(pin); - port_setup(gpio, GPIO_USAGE); - gpio_array[gpio_bank(gpio)]->data_set = gpio_bit(gpio); - AWA_DUMMY_READ(data_set); - udelay(1); -} - -int name_to_gpio(const char *name) -{ - int port_base; - - if (tolower(*name) == 'p') { - ++name; - - switch (tolower(*name)) { -#ifdef GPIO_PA0 - case 'a': port_base = GPIO_PA0; break; -#endif -#ifdef GPIO_PB0 - case 'b': port_base = GPIO_PB0; break; -#endif -#ifdef GPIO_PC0 - case 'c': port_base = GPIO_PC0; break; -#endif -#ifdef GPIO_PD0 - case 'd': port_base = GPIO_PD0; break; -#endif -#ifdef GPIO_PE0 - case 'e': port_base = GPIO_PE0; break; -#endif -#ifdef GPIO_PF0 - case 'f': port_base = GPIO_PF0; break; -#endif -#ifdef GPIO_PG0 - case 'g': port_base = GPIO_PG0; break; -#endif -#ifdef GPIO_PH0 - case 'h': port_base = GPIO_PH0; break; -#endif -#ifdef GPIO_PI0 - case 'i': port_base = GPIO_PI0; break; -#endif -#ifdef GPIO_PJ - case 'j': port_base = GPIO_PJ0; break; -#endif - default: return -1; - } - - ++name; - } else - port_base = 0; - - return port_base + simple_strtoul(name, NULL, 10); -} - -void gpio_labels(void) -{ - int c, gpio; - - for (c = 0; c < MAX_RESOURCES; c++) { - gpio = is_reserved(gpio, c, 1); - if (!check_gpio(c) && gpio) - printf("GPIO_%d:\t%s\tGPIO %s\n", c, - get_label(c), - get_gpio_dir(c) ? "OUTPUT" : "INPUT"); - else if (is_reserved(peri, c, 1)) - printf("GPIO_%d:\t%s\tPeripheral\n", c, get_label(c)); - else - continue; - } -} -#else -struct gpio_port_t * const gpio_array[] = { - (struct gpio_port_t *)PORTA_FER, - (struct gpio_port_t *)PORTB_FER, - (struct gpio_port_t *)PORTC_FER, - (struct gpio_port_t *)PORTD_FER, - (struct gpio_port_t *)PORTE_FER, - (struct gpio_port_t *)PORTF_FER, - (struct gpio_port_t *)PORTG_FER, -#if defined(CONFIG_BF54x) - (struct gpio_port_t *)PORTH_FER, - (struct gpio_port_t *)PORTI_FER, - (struct gpio_port_t *)PORTJ_FER, -#endif -}; -#endif |