| /* |
| * arch/arm/plat-s5pc100/gpiolib.c |
| * |
| * Copyright 2009 Samsung Electronics Co |
| * Kyungmin Park <kyungmin.park@samsung.com> |
| * |
| * S5PC100 - GPIOlib support |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/irq.h> |
| #include <linux/io.h> |
| #include <linux/gpio.h> |
| |
| #include <mach/map.h> |
| #include <mach/regs-gpio.h> |
| |
| #include <plat/gpio-core.h> |
| #include <plat/gpio-cfg.h> |
| #include <plat/gpio-cfg-helpers.h> |
| |
| /* S5PC100 GPIO bank summary: |
| * |
| * Bank GPIOs Style INT Type |
| * A0 8 4Bit GPIO_INT0 |
| * A1 5 4Bit GPIO_INT1 |
| * B 8 4Bit GPIO_INT2 |
| * C 5 4Bit GPIO_INT3 |
| * D 7 4Bit GPIO_INT4 |
| * E0 8 4Bit GPIO_INT5 |
| * E1 6 4Bit GPIO_INT6 |
| * F0 8 4Bit GPIO_INT7 |
| * F1 8 4Bit GPIO_INT8 |
| * F2 8 4Bit GPIO_INT9 |
| * F3 4 4Bit GPIO_INT10 |
| * G0 8 4Bit GPIO_INT11 |
| * G1 3 4Bit GPIO_INT12 |
| * G2 7 4Bit GPIO_INT13 |
| * G3 7 4Bit GPIO_INT14 |
| * H0 8 4Bit WKUP_INT |
| * H1 8 4Bit WKUP_INT |
| * H2 8 4Bit WKUP_INT |
| * H3 8 4Bit WKUP_INT |
| * I 8 4Bit GPIO_INT15 |
| * J0 8 4Bit GPIO_INT16 |
| * J1 5 4Bit GPIO_INT17 |
| * J2 8 4Bit GPIO_INT18 |
| * J3 8 4Bit GPIO_INT19 |
| * J4 4 4Bit GPIO_INT20 |
| * K0 8 4Bit None |
| * K1 6 4Bit None |
| * K2 8 4Bit None |
| * K3 8 4Bit None |
| * L0 8 4Bit None |
| * L1 8 4Bit None |
| * L2 8 4Bit None |
| * L3 8 4Bit None |
| */ |
| |
| static int s5pc100_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset) |
| { |
| return S3C_IRQ_GPIO(chip->base + offset); |
| } |
| |
| static int s5pc100_gpiolib_to_eint(struct gpio_chip *chip, unsigned int offset) |
| { |
| int base; |
| |
| base = chip->base - S5PC100_GPH0(0); |
| if (base == 0) |
| return IRQ_EINT(offset); |
| base = chip->base - S5PC100_GPH1(0); |
| if (base == 0) |
| return IRQ_EINT(8 + offset); |
| base = chip->base - S5PC100_GPH2(0); |
| if (base == 0) |
| return IRQ_EINT(16 + offset); |
| base = chip->base - S5PC100_GPH3(0); |
| if (base == 0) |
| return IRQ_EINT(24 + offset); |
| return -EINVAL; |
| } |
| |
| static struct s3c_gpio_cfg gpio_cfg = { |
| .set_config = s3c_gpio_setcfg_s3c64xx_4bit, |
| .set_pull = s3c_gpio_setpull_updown, |
| .get_pull = s3c_gpio_getpull_updown, |
| }; |
| |
| static struct s3c_gpio_cfg gpio_cfg_eint = { |
| .cfg_eint = 0xf, |
| .set_config = s3c_gpio_setcfg_s3c64xx_4bit, |
| .set_pull = s3c_gpio_setpull_updown, |
| .get_pull = s3c_gpio_getpull_updown, |
| }; |
| |
| static struct s3c_gpio_cfg gpio_cfg_noint = { |
| .set_config = s3c_gpio_setcfg_s3c64xx_4bit, |
| .set_pull = s3c_gpio_setpull_updown, |
| .get_pull = s3c_gpio_getpull_updown, |
| }; |
| |
| static struct s3c_gpio_chip s5pc100_gpio_chips[] = { |
| { |
| .base = S5PC100_GPA0_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPA0(0), |
| .ngpio = S5PC100_GPIO_A0_NR, |
| .label = "GPA0", |
| }, |
| }, { |
| .base = S5PC100_GPA1_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPA1(0), |
| .ngpio = S5PC100_GPIO_A1_NR, |
| .label = "GPA1", |
| }, |
| }, { |
| .base = S5PC100_GPB_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPB(0), |
| .ngpio = S5PC100_GPIO_B_NR, |
| .label = "GPB", |
| }, |
| }, { |
| .base = S5PC100_GPC_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPC(0), |
| .ngpio = S5PC100_GPIO_C_NR, |
| .label = "GPC", |
| }, |
| }, { |
| .base = S5PC100_GPD_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPD(0), |
| .ngpio = S5PC100_GPIO_D_NR, |
| .label = "GPD", |
| }, |
| }, { |
| .base = S5PC100_GPE0_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPE0(0), |
| .ngpio = S5PC100_GPIO_E0_NR, |
| .label = "GPE0", |
| }, |
| }, { |
| .base = S5PC100_GPE1_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPE1(0), |
| .ngpio = S5PC100_GPIO_E1_NR, |
| .label = "GPE1", |
| }, |
| }, { |
| .base = S5PC100_GPF0_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPF0(0), |
| .ngpio = S5PC100_GPIO_F0_NR, |
| .label = "GPF0", |
| }, |
| }, { |
| .base = S5PC100_GPF1_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPF1(0), |
| .ngpio = S5PC100_GPIO_F1_NR, |
| .label = "GPF1", |
| }, |
| }, { |
| .base = S5PC100_GPF2_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPF2(0), |
| .ngpio = S5PC100_GPIO_F2_NR, |
| .label = "GPF2", |
| }, |
| }, { |
| .base = S5PC100_GPF3_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPF3(0), |
| .ngpio = S5PC100_GPIO_F3_NR, |
| .label = "GPF3", |
| }, |
| }, { |
| .base = S5PC100_GPG0_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPG0(0), |
| .ngpio = S5PC100_GPIO_G0_NR, |
| .label = "GPG0", |
| }, |
| }, { |
| .base = S5PC100_GPG1_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPG1(0), |
| .ngpio = S5PC100_GPIO_G1_NR, |
| .label = "GPG1", |
| }, |
| }, { |
| .base = S5PC100_GPG2_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPG2(0), |
| .ngpio = S5PC100_GPIO_G2_NR, |
| .label = "GPG2", |
| }, |
| }, { |
| .base = S5PC100_GPG3_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPG3(0), |
| .ngpio = S5PC100_GPIO_G3_NR, |
| .label = "GPG3", |
| }, |
| }, { |
| .base = S5PC100_GPH0_BASE, |
| .config = &gpio_cfg_eint, |
| .chip = { |
| .base = S5PC100_GPH0(0), |
| .ngpio = S5PC100_GPIO_H0_NR, |
| .label = "GPH0", |
| }, |
| }, { |
| .base = S5PC100_GPH1_BASE, |
| .config = &gpio_cfg_eint, |
| .chip = { |
| .base = S5PC100_GPH1(0), |
| .ngpio = S5PC100_GPIO_H1_NR, |
| .label = "GPH1", |
| }, |
| }, { |
| .base = S5PC100_GPH2_BASE, |
| .config = &gpio_cfg_eint, |
| .chip = { |
| .base = S5PC100_GPH2(0), |
| .ngpio = S5PC100_GPIO_H2_NR, |
| .label = "GPH2", |
| }, |
| }, { |
| .base = S5PC100_GPH3_BASE, |
| .config = &gpio_cfg_eint, |
| .chip = { |
| .base = S5PC100_GPH3(0), |
| .ngpio = S5PC100_GPIO_H3_NR, |
| .label = "GPH3", |
| }, |
| }, { |
| .base = S5PC100_GPI_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPI(0), |
| .ngpio = S5PC100_GPIO_I_NR, |
| .label = "GPI", |
| }, |
| }, { |
| .base = S5PC100_GPJ0_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPJ0(0), |
| .ngpio = S5PC100_GPIO_J0_NR, |
| .label = "GPJ0", |
| }, |
| }, { |
| .base = S5PC100_GPJ1_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPJ1(0), |
| .ngpio = S5PC100_GPIO_J1_NR, |
| .label = "GPJ1", |
| }, |
| }, { |
| .base = S5PC100_GPJ2_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPJ2(0), |
| .ngpio = S5PC100_GPIO_J2_NR, |
| .label = "GPJ2", |
| }, |
| }, { |
| .base = S5PC100_GPJ3_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPJ3(0), |
| .ngpio = S5PC100_GPIO_J3_NR, |
| .label = "GPJ3", |
| }, |
| }, { |
| .base = S5PC100_GPJ4_BASE, |
| .config = &gpio_cfg, |
| .chip = { |
| .base = S5PC100_GPJ4(0), |
| .ngpio = S5PC100_GPIO_J4_NR, |
| .label = "GPJ4", |
| }, |
| }, { |
| .base = S5PC100_GPK0_BASE, |
| .config = &gpio_cfg_noint, |
| .chip = { |
| .base = S5PC100_GPK0(0), |
| .ngpio = S5PC100_GPIO_K0_NR, |
| .label = "GPK0", |
| }, |
| }, { |
| .base = S5PC100_GPK1_BASE, |
| .config = &gpio_cfg_noint, |
| .chip = { |
| .base = S5PC100_GPK1(0), |
| .ngpio = S5PC100_GPIO_K1_NR, |
| .label = "GPK1", |
| }, |
| }, { |
| .base = S5PC100_GPK2_BASE, |
| .config = &gpio_cfg_noint, |
| .chip = { |
| .base = S5PC100_GPK2(0), |
| .ngpio = S5PC100_GPIO_K2_NR, |
| .label = "GPK2", |
| }, |
| }, { |
| .base = S5PC100_GPK3_BASE, |
| .config = &gpio_cfg_noint, |
| .chip = { |
| .base = S5PC100_GPK3(0), |
| .ngpio = S5PC100_GPIO_K3_NR, |
| .label = "GPK3", |
| }, |
| }, { |
| .base = S5PC100_GPL0_BASE, |
| .config = &gpio_cfg_noint, |
| .chip = { |
| .base = S5PC100_GPL0(0), |
| .ngpio = S5PC100_GPIO_L0_NR, |
| .label = "GPL0", |
| }, |
| }, { |
| .base = S5PC100_GPL1_BASE, |
| .config = &gpio_cfg_noint, |
| .chip = { |
| .base = S5PC100_GPL1(0), |
| .ngpio = S5PC100_GPIO_L1_NR, |
| .label = "GPL1", |
| }, |
| }, { |
| .base = S5PC100_GPL2_BASE, |
| .config = &gpio_cfg_noint, |
| .chip = { |
| .base = S5PC100_GPL2(0), |
| .ngpio = S5PC100_GPIO_L2_NR, |
| .label = "GPL2", |
| }, |
| }, { |
| .base = S5PC100_GPL3_BASE, |
| .config = &gpio_cfg_noint, |
| .chip = { |
| .base = S5PC100_GPL3(0), |
| .ngpio = S5PC100_GPIO_L3_NR, |
| .label = "GPL3", |
| }, |
| }, { |
| .base = S5PC100_GPL4_BASE, |
| .config = &gpio_cfg_noint, |
| .chip = { |
| .base = S5PC100_GPL4(0), |
| .ngpio = S5PC100_GPIO_L4_NR, |
| .label = "GPL4", |
| }, |
| }, |
| }; |
| |
| /* FIXME move from irq-gpio.c */ |
| extern struct irq_chip s5pc100_gpioint; |
| extern void s5pc100_irq_gpioint_handler(unsigned int irq, struct irq_desc *desc); |
| |
| static __init void s5pc100_gpiolib_link(struct s3c_gpio_chip *chip) |
| { |
| /* Interrupt */ |
| if (chip->config == &gpio_cfg) { |
| int i, irq; |
| |
| chip->chip.to_irq = s5pc100_gpiolib_to_irq; |
| |
| for (i = 0; i < chip->chip.ngpio; i++) { |
| irq = S3C_IRQ_GPIO_BASE + chip->chip.base + i; |
| set_irq_chip(irq, &s5pc100_gpioint); |
| set_irq_data(irq, &chip->chip); |
| set_irq_handler(irq, handle_level_irq); |
| set_irq_flags(irq, IRQF_VALID); |
| } |
| } else if (chip->config == &gpio_cfg_eint) { |
| chip->chip.to_irq = s5pc100_gpiolib_to_eint; |
| } |
| } |
| |
| static __init int s5pc100_gpiolib_init(void) |
| { |
| struct s3c_gpio_chip *chip; |
| int nr_chips; |
| |
| chip = s5pc100_gpio_chips; |
| nr_chips = ARRAY_SIZE(s5pc100_gpio_chips); |
| |
| for (; nr_chips > 0; nr_chips--, chip++) |
| s5pc100_gpiolib_link(chip); |
| |
| samsung_gpiolib_add_4bit_chips(s5pc100_gpio_chips, |
| ARRAY_SIZE(s5pc100_gpio_chips)); |
| |
| /* Interrupt */ |
| set_irq_chained_handler(IRQ_GPIOINT, s5pc100_irq_gpioint_handler); |
| |
| return 0; |
| } |
| core_initcall(s5pc100_gpiolib_init); |
