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/*
* (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
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