| /* |
| * Copyright (C) 2015 Atmel Corporation. |
| * Wenyou Yang <wenyou.yang@atmel.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #ifndef __ATMEL_PIO4_H |
| #define __ATMEL_PIO4_H |
| |
| #ifndef __ASSEMBLY__ |
| |
| struct atmel_pio4_port { |
| u32 mskr; /* 0x00 PIO Mask Register */ |
| u32 cfgr; /* 0x04 PIO Configuration Register */ |
| u32 pdsr; /* 0x08 PIO Pin Data Status Register */ |
| u32 locksr; /* 0x0C PIO Lock Status Register */ |
| u32 sodr; /* 0x10 PIO Set Output Data Register */ |
| u32 codr; /* 0x14 PIO Clear Output Data Register */ |
| u32 odsr; /* 0x18 PIO Output Data Status Register */ |
| u32 reserved0; |
| u32 ier; /* 0x20 PIO Interrupt Enable Register */ |
| u32 idr; /* 0x24 PIO Interrupt Disable Register */ |
| u32 imr; /* 0x28 PIO Interrupt Mask Register */ |
| u32 isr; /* 0x2C PIO Interrupt Status Register */ |
| u32 reserved1[3]; |
| u32 iofr; /* 0x3C PIO I/O Freeze Register */ |
| }; |
| |
| #endif |
| |
| /* |
| * PIO Configuration Register Fields |
| */ |
| #define ATMEL_PIO_CFGR_FUNC_MASK GENMASK(2, 0) |
| #define ATMEL_PIO_CFGR_FUNC_GPIO (0x0 << 0) |
| #define ATMEL_PIO_CFGR_FUNC_PERIPH_A (0x1 << 0) |
| #define ATMEL_PIO_CFGR_FUNC_PERIPH_B (0x2 << 0) |
| #define ATMEL_PIO_CFGR_FUNC_PERIPH_C (0x3 << 0) |
| #define ATMEL_PIO_CFGR_FUNC_PERIPH_D (0x4 << 0) |
| #define ATMEL_PIO_CFGR_FUNC_PERIPH_E (0x5 << 0) |
| #define ATMEL_PIO_CFGR_FUNC_PERIPH_F (0x6 << 0) |
| #define ATMEL_PIO_CFGR_FUNC_PERIPH_G (0x7 << 0) |
| #define ATMEL_PIO_DIR_MASK BIT(8) |
| #define ATMEL_PIO_PUEN_MASK BIT(9) |
| #define ATMEL_PIO_PDEN_MASK BIT(10) |
| #define ATMEL_PIO_IFEN_MASK BIT(12) |
| #define ATMEL_PIO_IFSCEN_MASK BIT(13) |
| #define ATMEL_PIO_OPD_MASK BIT(14) |
| #define ATMEL_PIO_SCHMITT_MASK BIT(15) |
| #define ATMEL_PIO_CFGR_EVTSEL_MASK GENMASK(26, 24) |
| #define ATMEL_PIO_CFGR_EVTSEL_FALLING (0 << 24) |
| #define ATMEL_PIO_CFGR_EVTSEL_RISING (1 << 24) |
| #define ATMEL_PIO_CFGR_EVTSEL_BOTH (2 << 24) |
| #define ATMEL_PIO_CFGR_EVTSEL_LOW (3 << 24) |
| #define ATMEL_PIO_CFGR_EVTSEL_HIGH (4 << 24) |
| |
| #define ATMEL_PIO_NPINS_PER_BANK 32 |
| #define ATMEL_PIO_BANK(pin_id) (pin_id / ATMEL_PIO_NPINS_PER_BANK) |
| #define ATMEL_PIO_LINE(pin_id) (pin_id % ATMEL_PIO_NPINS_PER_BANK) |
| #define ATMEL_PIO_BANK_OFFSET 0x40 |
| |
| #define ATMEL_GET_PIN_NO(pinfunc) ((pinfunc) & 0xff) |
| #define ATMEL_GET_PIN_FUNC(pinfunc) ((pinfunc >> 16) & 0xf) |
| #define ATMEL_GET_PIN_IOSET(pinfunc) ((pinfunc >> 20) & 0xf) |
| |
| #define AT91_PIO_PORTA 0x0 |
| #define AT91_PIO_PORTB 0x1 |
| #define AT91_PIO_PORTC 0x2 |
| #define AT91_PIO_PORTD 0x3 |
| |
| int atmel_pio4_set_gpio(u32 port, u32 pin, u32 use_pullup); |
| int atmel_pio4_set_a_periph(u32 port, u32 pin, u32 use_pullup); |
| int atmel_pio4_set_b_periph(u32 port, u32 pin, u32 use_pullup); |
| int atmel_pio4_set_c_periph(u32 port, u32 pin, u32 use_pullup); |
| int atmel_pio4_set_d_periph(u32 port, u32 pin, u32 use_pullup); |
| int atmel_pio4_set_e_periph(u32 port, u32 pin, u32 use_pullup); |
| int atmel_pio4_set_f_periph(u32 port, u32 pin, u32 use_pullup); |
| int atmel_pio4_set_g_periph(u32 port, u32 pin, u32 use_pullup); |
| int atmel_pio4_set_pio_output(u32 port, u32 pin, u32 value); |
| int atmel_pio4_get_pio_input(u32 port, u32 pin); |
| |
| #endif |
