| /* |
| * (C) Copyright 2010 Samsung Electronics |
| * Minkyu Kang <mk7.kang@samsung.com> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #ifndef __ASM_ARCH_GPIO_H |
| #define __ASM_ARCH_GPIO_H |
| |
| #ifndef __ASSEMBLY__ |
| struct s5p_gpio_bank { |
| unsigned int con; |
| unsigned int dat; |
| unsigned int pull; |
| unsigned int drv; |
| unsigned int pdn_con; |
| unsigned int pdn_pull; |
| unsigned char res1[8]; |
| }; |
| |
| struct exynos4_gpio_part1 { |
| struct s5p_gpio_bank a0; |
| struct s5p_gpio_bank a1; |
| struct s5p_gpio_bank b; |
| struct s5p_gpio_bank c0; |
| struct s5p_gpio_bank c1; |
| struct s5p_gpio_bank d0; |
| struct s5p_gpio_bank d1; |
| struct s5p_gpio_bank e0; |
| struct s5p_gpio_bank e1; |
| struct s5p_gpio_bank e2; |
| struct s5p_gpio_bank e3; |
| struct s5p_gpio_bank e4; |
| struct s5p_gpio_bank f0; |
| struct s5p_gpio_bank f1; |
| struct s5p_gpio_bank f2; |
| struct s5p_gpio_bank f3; |
| }; |
| |
| struct exynos4_gpio_part2 { |
| struct s5p_gpio_bank j0; |
| struct s5p_gpio_bank j1; |
| struct s5p_gpio_bank k0; |
| struct s5p_gpio_bank k1; |
| struct s5p_gpio_bank k2; |
| struct s5p_gpio_bank k3; |
| struct s5p_gpio_bank l0; |
| struct s5p_gpio_bank l1; |
| struct s5p_gpio_bank l2; |
| struct s5p_gpio_bank y0; |
| struct s5p_gpio_bank y1; |
| struct s5p_gpio_bank y2; |
| struct s5p_gpio_bank y3; |
| struct s5p_gpio_bank y4; |
| struct s5p_gpio_bank y5; |
| struct s5p_gpio_bank y6; |
| struct s5p_gpio_bank res1[80]; |
| struct s5p_gpio_bank x0; |
| struct s5p_gpio_bank x1; |
| struct s5p_gpio_bank x2; |
| struct s5p_gpio_bank x3; |
| }; |
| |
| struct exynos4_gpio_part3 { |
| struct s5p_gpio_bank z; |
| }; |
| |
| struct exynos5_gpio_part1 { |
| struct s5p_gpio_bank a0; |
| struct s5p_gpio_bank a1; |
| struct s5p_gpio_bank a2; |
| struct s5p_gpio_bank b0; |
| struct s5p_gpio_bank b1; |
| struct s5p_gpio_bank b2; |
| struct s5p_gpio_bank b3; |
| struct s5p_gpio_bank c0; |
| struct s5p_gpio_bank c1; |
| struct s5p_gpio_bank c2; |
| struct s5p_gpio_bank c3; |
| struct s5p_gpio_bank d0; |
| struct s5p_gpio_bank d1; |
| struct s5p_gpio_bank y0; |
| struct s5p_gpio_bank y1; |
| struct s5p_gpio_bank y2; |
| struct s5p_gpio_bank y3; |
| struct s5p_gpio_bank y4; |
| struct s5p_gpio_bank y5; |
| struct s5p_gpio_bank y6; |
| struct s5p_gpio_bank res1[0x980]; |
| struct s5p_gpio_bank x0; |
| struct s5p_gpio_bank x1; |
| struct s5p_gpio_bank x2; |
| struct s5p_gpio_bank x3; |
| }; |
| |
| struct exynos5_gpio_part2 { |
| struct s5p_gpio_bank e0; |
| struct s5p_gpio_bank e1; |
| struct s5p_gpio_bank f0; |
| struct s5p_gpio_bank f1; |
| struct s5p_gpio_bank g0; |
| struct s5p_gpio_bank g1; |
| struct s5p_gpio_bank g2; |
| struct s5p_gpio_bank h0; |
| struct s5p_gpio_bank h1; |
| }; |
| |
| struct exynos5_gpio_part3 { |
| struct s5p_gpio_bank v0; |
| struct s5p_gpio_bank v1; |
| struct s5p_gpio_bank v2; |
| struct s5p_gpio_bank v3; |
| struct s5p_gpio_bank res1[0x20]; |
| struct s5p_gpio_bank v4; |
| }; |
| |
| struct exynos5_gpio_part4 { |
| struct s5p_gpio_bank z; |
| }; |
| |
| /* functions */ |
| void s5p_gpio_cfg_pin(struct s5p_gpio_bank *bank, int gpio, int cfg); |
| void s5p_gpio_direction_output(struct s5p_gpio_bank *bank, int gpio, int en); |
| void s5p_gpio_direction_input(struct s5p_gpio_bank *bank, int gpio); |
| void s5p_gpio_set_value(struct s5p_gpio_bank *bank, int gpio, int en); |
| unsigned int s5p_gpio_get_value(struct s5p_gpio_bank *bank, int gpio); |
| void s5p_gpio_set_pull(struct s5p_gpio_bank *bank, int gpio, int mode); |
| void s5p_gpio_set_drv(struct s5p_gpio_bank *bank, int gpio, int mode); |
| void s5p_gpio_set_rate(struct s5p_gpio_bank *bank, int gpio, int mode); |
| |
| /* GPIO pins per bank */ |
| #define GPIO_PER_BANK 8 |
| |
| #define exynos4_gpio_part1_get_nr(bank, pin) \ |
| ((((((unsigned int) &(((struct exynos4_gpio_part1 *) \ |
| EXYNOS4_GPIO_PART1_BASE)->bank)) \ |
| - EXYNOS4_GPIO_PART1_BASE) / sizeof(struct s5p_gpio_bank)) \ |
| * GPIO_PER_BANK) + pin) |
| |
| #define EXYNOS4_GPIO_PART1_MAX ((sizeof(struct exynos4_gpio_part1) \ |
| / sizeof(struct s5p_gpio_bank)) * GPIO_PER_BANK) |
| |
| #define exynos4_gpio_part2_get_nr(bank, pin) \ |
| (((((((unsigned int) &(((struct exynos4_gpio_part2 *) \ |
| EXYNOS4_GPIO_PART2_BASE)->bank)) \ |
| - EXYNOS4_GPIO_PART2_BASE) / sizeof(struct s5p_gpio_bank)) \ |
| * GPIO_PER_BANK) + pin) + EXYNOS4_GPIO_PART1_MAX) |
| |
| #define exynos5_gpio_part1_get_nr(bank, pin) \ |
| ((((((unsigned int) &(((struct exynos5_gpio_part1 *) \ |
| EXYNOS5_GPIO_PART1_BASE)->bank)) \ |
| - EXYNOS5_GPIO_PART1_BASE) / sizeof(struct s5p_gpio_bank)) \ |
| * GPIO_PER_BANK) + pin) |
| |
| #define EXYNOS5_GPIO_PART1_MAX ((sizeof(struct exynos5_gpio_part1) \ |
| / sizeof(struct s5p_gpio_bank)) * GPIO_PER_BANK) |
| |
| #define exynos5_gpio_part2_get_nr(bank, pin) \ |
| (((((((unsigned int) &(((struct exynos5_gpio_part2 *) \ |
| EXYNOS5_GPIO_PART2_BASE)->bank)) \ |
| - EXYNOS5_GPIO_PART2_BASE) / sizeof(struct s5p_gpio_bank)) \ |
| * GPIO_PER_BANK) + pin) + EXYNOS5_GPIO_PART1_MAX) |
| |
| #define EXYNOS5_GPIO_PART2_MAX ((sizeof(struct exynos5_gpio_part2) \ |
| / sizeof(struct s5p_gpio_bank)) * GPIO_PER_BANK) |
| |
| #define exynos5_gpio_part3_get_nr(bank, pin) \ |
| (((((((unsigned int) &(((struct exynos5_gpio_part3 *) \ |
| EXYNOS5_GPIO_PART3_BASE)->bank)) \ |
| - EXYNOS5_GPIO_PART3_BASE) / sizeof(struct s5p_gpio_bank)) \ |
| * GPIO_PER_BANK) + pin) + EXYNOS5_GPIO_PART2_MAX) |
| |
| static inline unsigned int s5p_gpio_base(int nr) |
| { |
| if (cpu_is_exynos5()) { |
| if (nr < EXYNOS5_GPIO_PART1_MAX) |
| return EXYNOS5_GPIO_PART1_BASE; |
| else if (nr < EXYNOS5_GPIO_PART2_MAX) |
| return EXYNOS5_GPIO_PART2_BASE; |
| else |
| return EXYNOS5_GPIO_PART3_BASE; |
| |
| } else if (cpu_is_exynos4()) { |
| if (nr < EXYNOS4_GPIO_PART1_MAX) |
| return EXYNOS4_GPIO_PART1_BASE; |
| else |
| return EXYNOS4_GPIO_PART2_BASE; |
| } |
| |
| return 0; |
| } |
| |
| #endif |
| |
| /* Pin configurations */ |
| #define GPIO_INPUT 0x0 |
| #define GPIO_OUTPUT 0x1 |
| #define GPIO_IRQ 0xf |
| #define GPIO_FUNC(x) (x) |
| |
| /* Pull mode */ |
| #define GPIO_PULL_NONE 0x0 |
| #define GPIO_PULL_DOWN 0x1 |
| #define GPIO_PULL_UP 0x3 |
| |
| /* Drive Strength level */ |
| #define GPIO_DRV_1X 0x0 |
| #define GPIO_DRV_3X 0x1 |
| #define GPIO_DRV_2X 0x2 |
| #define GPIO_DRV_4X 0x3 |
| #define GPIO_DRV_FAST 0x0 |
| #define GPIO_DRV_SLOW 0x1 |
| #endif |
