433 lines
19 KiB
C
433 lines
19 KiB
C
/*
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* File : rsapi.h
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-07-29 zdzn first version
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*/
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#ifndef __RASPI_H__
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#define __RASPI_H__
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/* define for bcm283x*/
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typedef enum
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{
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BCM_GPIO_PIN_0 = 0,
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BCM_GPIO_PIN_1,
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BCM_GPIO_PIN_2,
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BCM_GPIO_PIN_3,
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BCM_GPIO_PIN_4,
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BCM_GPIO_PIN_5,
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BCM_GPIO_PIN_6,
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BCM_GPIO_PIN_7,
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BCM_GPIO_PIN_8,
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BCM_GPIO_PIN_9,
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BCM_GPIO_PIN_10,
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BCM_GPIO_PIN_11,
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BCM_GPIO_PIN_12,
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BCM_GPIO_PIN_13,
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BCM_GPIO_PIN_14,
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BCM_GPIO_PIN_15,
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BCM_GPIO_PIN_16,
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BCM_GPIO_PIN_17,
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BCM_GPIO_PIN_18,
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BCM_GPIO_PIN_19,
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BCM_GPIO_PIN_20,
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BCM_GPIO_PIN_21,
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BCM_GPIO_PIN_22,
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BCM_GPIO_PIN_23,
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BCM_GPIO_PIN_24,
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BCM_GPIO_PIN_25,
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BCM_GPIO_PIN_26,
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BCM_GPIO_PIN_27,
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BCM_GPIO_PIN_28,
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BCM_GPIO_PIN_29,
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BCM_GPIO_PIN_30,
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BCM_GPIO_PIN_31,
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BCM_GPIO_PIN_32,
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BCM_GPIO_PIN_33,
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BCM_GPIO_PIN_34,
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BCM_GPIO_PIN_35,
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BCM_GPIO_PIN_36,
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BCM_GPIO_PIN_37,
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BCM_GPIO_PIN_38,
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BCM_GPIO_PIN_39,
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BCM_GPIO_PIN_40,
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BCM_GPIO_PIN_41,
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BCM_GPIO_PIN_42,
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BCM_GPIO_PIN_43,
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BCM_GPIO_PIN_44,
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BCM_GPIO_PIN_45,
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BCM_GPIO_PIN_46,
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BCM_GPIO_PIN_47,
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BCM_GPIO_PIN_48,
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BCM_GPIO_PIN_49,
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BCM_GPIO_PIN_50,
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BCM_GPIO_PIN_51,
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BCM_GPIO_PIN_52,
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BCM_GPIO_PIN_53,
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BCM_GPIO_PIN_NULL,
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} bcm_gpio_pin;
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typedef enum
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{
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BCM283X_GPIO_FSEL_INPT = 0x00, /*!< Input 0b000 */
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BCM283X_GPIO_FSEL_OUTP = 0x01, /*!< Output 0b001 */
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BCM283X_GPIO_FSEL_ALT0 = 0x04, /*!< Alternate function 0 0b100 */
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BCM283X_GPIO_FSEL_ALT1 = 0x05, /*!< Alternate function 1 0b101 */
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BCM283X_GPIO_FSEL_ALT2 = 0x06, /*!< Alternate function 2 0b110, */
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BCM283X_GPIO_FSEL_ALT3 = 0x07, /*!< Alternate function 3 0b111 */
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BCM283X_GPIO_FSEL_ALT4 = 0x03, /*!< Alternate function 4 0b011 */
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BCM283X_GPIO_FSEL_ALT5 = 0x02, /*!< Alternate function 5 0b010 */
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BCM283X_GPIO_FSEL_MASK = 0x07 /*!< Function select bits mask 0b111 */
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} gpio_function_select;
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typedef enum
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{
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BCM283X_GPIO_PUD_OFF = 0x00, /*!< Off ? disable pull-up/down 0b00 */
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BCM283X_GPIO_PUD_DOWN = 0x01, /*!< Enable Pull Down control 0b01 */
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BCM283X_GPIO_PUD_UP = 0x02 /*!< Enable Pull Up control 0b10 */
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} gpio_pud_mode;
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#define BCM283X_CORE_CLK_HZ 250000000 /* 50 MHz */
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/* Base Address */
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#define PER_BASE (0x3F000000)
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#define PER_BASE_40000000 (0x40000000)
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//#define BCM283X_PERI_BASE (0x3F000000)
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//#define BCM283X_PER_BASE_40000000 (0x40000000)
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/* Base Address Registers Offset */
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#define ST_BASE_OFFSET (0x003000)
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#define GPIO_PAD_OFFSET (0x100000)
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#define CLOCK_BASE_OFFSET (0x101000)
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#define GPIO_BASE_OFFSET (0x200000)
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#define SPI0_BASE_OFFSET (0x204000)
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#define BSC0_BASE_OFFSET (0x205000)
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#define GPIO_PWM_OFFSET (0x20C000)
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#define AUX_BASE_OFFSET (0x215000)
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#define SPI1_BASE_OFFSET (0x215080)
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#define SPI2_BASE_OFFSET (0x2150C0)
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#define BSC1_BASE_OFFSET (0x804000)
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#define BSC2_BASE_OFFSET (0x805000)
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/* IRQ */
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#define IRQ_SYSTEM_TIMER_0 0
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#define IRQ_SYSTEM_TIMER_1 1
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#define IRQ_SYSTEM_TIMER_2 2
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#define IRQ_SYSTEM_TIMER_3 3
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#define IRQ_USB 9
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#define IRQ_AUX 29
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#define IRQ_PCM 55
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#define IRQ_ARM_TIMER 64
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#define IRQ_ARM_MAILBOX 65
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/* Interrupt Controler */
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#define IRQ_BASE (PER_BASE + 0xB200)
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#define IRQ_PEND_BASIC HWREG32(IRQ_BASE + 0x0000)
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#define IRQ_PEND1 HWREG32(IRQ_BASE + 0x0004)
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#define IRQ_PEND2 HWREG32(IRQ_BASE + 0x0008)
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#define IRQ_FIQ_CONTROL HWREG32(IRQ_BASE + 0x000C)
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#define IRQ_ENABLE1 HWREG32(IRQ_BASE + 0x0010)
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#define IRQ_ENABLE2 HWREG32(IRQ_BASE + 0x0014)
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#define IRQ_ENABLE_BASIC HWREG32(IRQ_BASE + 0x0018)
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#define IRQ_DISABLE1 HWREG32(IRQ_BASE + 0x001C)
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#define IRQ_DISABLE2 HWREG32(IRQ_BASE + 0x0020)
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#define IRQ_DISABLE_BASIC HWREG32(IRQ_BASE + 0x0024)
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/* Defines for WDT*/
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#define PM_BASE (PER_BASE + GPIO_PAD_OFFSET)
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#define PM_RSTC HWREG32(PM_BASE + 0x001C)
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#define PM_RSTS HWREG32(PM_BASE + 0x0020)
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#define PM_WDOG HWREG32(PM_BASE + 0x0024)
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#define PM_PASSWORD 0x5a000000
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#define PM_WDOG_TIME_SET 0x000fffff
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#define PM_RSTC_WRCFG_CLR 0xffffffcf
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#define PM_RSTS_HADWRH_SET 0x00000040
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#define PM_RSTC_WRCFG_SET 0x00000030
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#define PM_RSTC_WRCFG_FULL_RESET 0x00000020
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#define PM_RSTC_RESET 0x00000102
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#define PM_RSTS_PARTITION_CLR 0xfffffaaa
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/* Defines for System Timer */
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#define STIMER_BASE (PER_BASE + ST_BASE_OFFSET)
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#define STIMER_CS HWREG32(STIMER_BASE + 0x0000)
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#define STIMER_CLO HWREG32(STIMER_BASE + 0x0004)
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#define STIMER_CHI HWREG32(STIMER_BASE + 0x0008)
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#define STIMER_C0 HWREG32(STIMER_BASE + 0x000C)
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#define STIMER_C1 HWREG32(STIMER_BASE + 0x0010)
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#define STIMER_C2 HWREG32(STIMER_BASE + 0x0014)
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#define STIMER_C3 HWREG32(STIMER_BASE + 0x0018)
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#define DELAY_MICROS(micros) \
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do{ \
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rt_uint32_t compare = STIMER_CLO + micros * 25; \
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while (STIMER_CLO < compare); \
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} while (0) \
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/* Defines for GPIO */
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#define BCM283X_GPIO_BASE (PER_BASE + GPIO_BASE_OFFSET)
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#define BCM283X_GPIO_GPFSEL(n) HWREG32(BCM283X_GPIO_BASE + 0x0000 + 0x4 * n) /* GPIO Function Select 32bit R/W */
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#define BCM283X_GPIO_GPSET(n) HWREG32(BCM283X_GPIO_BASE + 0x001C + 0x4 * n) /* GPIO Pin Output Set */
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#define BCM283X_GPIO_GPCLR(n) HWREG32(BCM283X_GPIO_BASE + 0x0028 + 0x4 * n) /* GPIO Pin Output Clear */
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#define BCM2835_GPIO_GPLEV(n) HWREG32(BCM283X_GPIO_BASE + 0x0034 + 0x4 * n) /* GPIO Pin Level */
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#define BCM283X_GPIO_GPEDS(n) HWREG32(BCM283X_GPIO_BASE + 0x0040 + 0x4 * n) /* GPIO Pin Event Detect Status */
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#define BCM283X_GPIO_GPREN(n) HWREG32(BCM283X_GPIO_BASE + 0x004c + 0x4 * n) /* GPIO Pin Rising Edge Detect Enable */
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#define BCM283X_GPIO_GPFEN(n) HWREG32(BCM283X_GPIO_BASE + 0x0058 + 0x4 * n) /* GPIO Pin Falling Edge Detect Enable */
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#define BCM283X_GPIO_GPHEN(n) HWREG32(BCM283X_GPIO_BASE + 0x0064 + 0x4 * n) /* GPIO Pin High Detect Enable */
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#define BCM283X_GPIO_GPLEN(n) HWREG32(BCM283X_GPIO_BASE + 0x0070 + 0x4 * n) /* GPIO Pin Low Detect Enable */
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#define BCM283X_GPIO_GPAREN(n) HWREG32(BCM283X_GPIO_BASE + 0x007C + 0x4 * n) /* GPIO Pin Async. Rising Edge Detect */
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#define BCM283X_GPIO_GPAFEN(n) HWREG32(BCM283X_GPIO_BASE + 0x0088 + 0x4 * n) /* GPIO Pin Async. Falling Edge Detect */
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#define BCM283X_GPIO_GPPUD HWREG32(BCM283X_GPIO_BASE + 0x0094) /* GPIO Pin Pull-up/down Enable */
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#define BCM283X_GPIO_GPPUDCLK(n) HWREG32(BCM283X_GPIO_BASE + 0x0098 + 0x4 * n) /* GPIO Pin Pull-up/down Enable Clock */
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#define GPIO_FSEL_NUM(pin) (pin/10)
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#define GPIO_FSEL_SHIFT(pin) ((pin%10)*3)
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#define GPIO_FSEL(pin, mode) \
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do{ \
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__sync_synchronize(); \
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BCM283X_GPIO_GPFSEL(GPIO_FSEL_NUM(pin)) |= ((mode & BCM283X_GPIO_FSEL_MASK) << GPIO_FSEL_SHIFT(pin)); \
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} while (0) \
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/* Defines for I2C */
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#define BCM283X_BSC0_BASE (PER_BASE + BSC0_BASE_OFFSET) //for i2c0
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#define BCM283X_BSC1_BASE (PER_BASE + BSC1_BASE_OFFSET) //for i2c1
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#define BCM283X_BSC2_BASE (PER_BASE + BSC2_BASE_OFFSET) //for hdmi i2c not use
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#define BCM283X_BSC_C(BASE) HWREG32(BASE + 0x0000) /* BSC Master Control */
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#define BCM283X_BSC_S(BASE) HWREG32(BASE + 0x0004) /* BSC Master Status */
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#define BCM283X_BSC_DLEN(BASE) HWREG32(BASE + 0x0008) /* BSC Master Data Length */
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#define BCM283X_BSC_A(BASE) HWREG32(BASE + 0x000c) /* BSC Master Slave Address */
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#define BCM283X_BSC_FIFO(BASE) HWREG32(BASE + 0x0010) /* BSC Master Data FIFO */
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#define BCM283X_BSC_DIV(BASE) HWREG32(BASE + 0x0014) /* BSC Master Clock Divider */
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#define BCM283X_BSC_DEL(BASE) HWREG32(BASE + 0x0018) /* BSC Master Data Delay */
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#define BCM283X_BSC_CLKT(BASE) HWREG32(BASE + 0x001c) /* BSC Master Clock Stretch Timeout */
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/* Register masks for C Register */
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#define BSC_C_I2CEN 0x00008000 /* I2C Enable, 0 = disabled, 1 = enabled */
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#define BSC_C_INTR 0x00000400 /* Interrupt on RX */
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#define BSC_C_INTT 0x00000200 /* Interrupt on TX */
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#define BSC_C_INTD 0x00000100 /* Interrupt on DONE */
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#define BSC_C_ST 0x00000080 /* Start transfer, 1 = Start a new transfer */
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#define BSC_C_CLEAR_1 0x00000020 /* Clear FIFO Clear */
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#define BSC_C_CLEAR_2 0x00000010 /* Clear FIFO Clear */
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#define BSC_C_READ 0x00000001 /* Read transfer */
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/* Register masks for S Register */
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#define BSC_S_CLKT 0x00000200 /* Clock stretch timeout */
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#define BSC_S_ERR 0x00000100 /* ACK error */
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#define BSC_S_RXF 0x00000080 /* RXF FIFO full, 0 = FIFO is not full, 1 = FIFO is full */
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#define BSC_S_TXE 0x00000040 /* TXE FIFO full, 0 = FIFO is not full, 1 = FIFO is full */
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#define BSC_S_RXD 0x00000020 /* RXD FIFO contains data */
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#define BSC_S_TXD 0x00000010 /* TXD FIFO can accept data */
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#define BSC_S_RXR 0x00000008 /* RXR FIFO needs reading (full) */
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#define BSC_S_TXW 0x00000004 /* TXW FIFO needs writing (full) */
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#define BSC_S_DONE 0x00000002 /* Transfer DONE */
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#define BSC_S_TA 0x00000001 /* Transfer Active */
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#define BSC_FIFO_SIZE (16) /* BSC FIFO size */
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/* Defines for SPI */
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#define BCM283X_SPI0_BASE (PER_BASE + SPI0_BASE_OFFSET)
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#define BCM283X_SPI1_BASE (PER_BASE + SPI1_BASE_OFFSET)
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#define BCM283X_SPI2_BASE (PER_BASE + SPI2_BASE_OFFSET)
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#define BCM283X_SPI0_CS(BASE) HWREG32(BASE + 0x0000) /* SPI Master Control and Status */
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#define BCM283X_SPI0_FIFO(BASE) HWREG32(BASE + 0x0004) /* SPI Master TX and RX FIFOs */
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#define BCM283X_SPI0_CLK(BASE) HWREG32(BASE + 0x0008) /* SPI Master Clock Divider */
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#define BCM283X_SPI0_DLEN(BASE) HWREG32(BASE + 0x000c) /* SPI Master Data Length */
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#define BCM283X_SPI0_LTOH(BASE) HWREG32(BASE + 0x0010) /* SPI LOSSI mode TOH */
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#define BCM283X_SPI0_DC(BASE) HWREG32(BASE + 0x0014) /* SPI DMA DREQ Controls */
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/* Register masks for SPI0_CS */
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#define BCM283X_SPI0_CS_LEN_LONG 0x02000000 /* Enable Long data word in Lossi mode if DMA_LEN is set */
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#define BCM283X_SPI0_CS_DMA_LEN 0x01000000 /* Enable DMA mode in Lossi mode */
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#define BCM283X_SPI0_CS_CSPOL2 0x00800000 /* Chip Select 2 Polarity */
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#define BCM283X_SPI0_CS_CSPOL1 0x00400000 /* Chip Select 1 Polarity */
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#define BCM283X_SPI0_CS_CSPOL0 0x00200000 /* Chip Select 0 Polarity */
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#define BCM283X_SPI0_CS_RXF 0x00100000 /* RXF - RX FIFO Full */
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#define BCM283X_SPI0_CS_RXR 0x00080000 /* RXR RX FIFO needs Reading (full) */
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#define BCM283X_SPI0_CS_TXD 0x00040000 /* TXD TX FIFO can accept Data */
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#define BCM283X_SPI0_CS_RXD 0x00020000 /* RXD RX FIFO contains Data */
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#define BCM283X_SPI0_CS_DONE 0x00010000 /* Done transfer Done */
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#define BCM283X_SPI0_CS_TE_EN 0x00008000 /* Unused */
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#define BCM283X_SPI0_CS_LMONO 0x00004000 /* Unused */
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#define BCM283X_SPI0_CS_LEN 0x00002000 /* LEN LoSSI enable */
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#define BCM283X_SPI0_CS_REN 0x00001000 /* REN Read Enable */
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#define BCM283X_SPI0_CS_ADCS 0x00000800 /* ADCS Automatically Deassert Chip Select */
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#define BCM283X_SPI0_CS_INTR 0x00000400 /* INTR Interrupt on RXR */
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#define BCM283X_SPI0_CS_INTD 0x00000200 /* INTD Interrupt on Done */
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#define BCM283X_SPI0_CS_DMAEN 0x00000100 /* DMAEN DMA Enable */
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#define BCM283X_SPI0_CS_TA 0x00000080 /* Transfer Active */
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#define BCM283X_SPI0_CS_CSPOL 0x00000040 /* Chip Select Polarity */
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#define BCM283X_SPI0_CS_CLEAR 0x00000030 /* Clear FIFO Clear RX and TX */
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#define BCM283X_SPI0_CS_CLEAR_RX 0x00000020 /* Clear FIFO Clear RX */
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#define BCM283X_SPI0_CS_CLEAR_TX 0x00000010 /* Clear FIFO Clear TX */
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#define BCM283X_SPI0_CS_CPOL 0x00000008 /* Clock Polarity */
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#define BCM283X_SPI0_CS_CPHA 0x00000004 /* Clock Phase */
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#define BCM283X_SPI0_CS_CS 0x00000003 /* Chip Select */
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/* ARM Timer */
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#define ARM_TIMER_BASE (PER_BASE + 0xB000)
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#define ARM_TIMER_LOAD HWREG32(ARM_TIMER_BASE + 0x400)
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#define ARM_TIMER_VALUE HWREG32(ARM_TIMER_BASE + 0x404)
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#define ARM_TIMER_CTRL HWREG32(ARM_TIMER_BASE + 0x408)
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#define ARM_TIMER_IRQCLR HWREG32(ARM_TIMER_BASE + 0x40C)
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#define ARM_TIMER_RAWIRQ HWREG32(ARM_TIMER_BASE + 0x410)
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#define ARM_TIMER_MASKIRQ HWREG32(ARM_TIMER_BASE + 0x414)
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#define ARM_TIMER_RELOAD HWREG32(ARM_TIMER_BASE + 0x418)
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#define ARM_TIMER_PREDIV HWREG32(ARM_TIMER_BASE + 0x41C)
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#define ARM_TIMER_CNTR HWREG32(ARM_TIMER_BASE + 0x420)
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/* ARM Core Timer */
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#define C0TIMER_INTCTL HWREG32(PER_BASE_40000000 + 0x40) /* Core0 timers Interrupt control */
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#define C1TIMER_INTCTL HWREG32(PER_BASE_40000000 + 0x44) /* Core1 timers Interrupt control */
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#define C2TIMER_INTCTL HWREG32(PER_BASE_40000000 + 0x48) /* Core2 timers Interrupt control */
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#define C3TIMER_INTCTL HWREG32(PER_BASE_40000000 + 0x4C) /* Core3 timers Interrupt control */
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#define CORETIMER_INTCTL(n) HWREG32(PER_BASE_40000000 + 0x40 + n*4) /* Coren timers Interrupt control */
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/* ARM Core Mailbox interrupt */
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#define C0MB_INTCTL HWREG32(PER_BASE_40000000 + 0x50) /* Core0 Mailboxes Interrupt control */
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#define C1MB_INTCTL HWREG32(PER_BASE_40000000 + 0x54) /* Core1 Mailboxes Interrupt control */
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#define C2MB_INTCTL HWREG32(PER_BASE_40000000 + 0x58) /* Core2 Mailboxes Interrupt control */
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#define C3MB_INTCTL HWREG32(PER_BASE_40000000 + 0x5C) /* Core3 Mailboxes Interrupt control */
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#define COREMB_INTCTL(n) HWREG32(PER_BASE_40000000 + 0x50 + 4*n) /* Coren Mailboxes Interrupt control */
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/* ARM Core IRQ/FIQ status */
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#define C0_IRQSOURCE HWREG32(PER_BASE_40000000 + 0x60) /* Core0 IRQ Source */
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#define C1_IRQSOURCE HWREG32(PER_BASE_40000000 + 0x64) /* Core1 IRQ Source */
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#define C2_IRQSOURCE HWREG32(PER_BASE_40000000 + 0x68) /* Core2 IRQ Source */
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#define C3_IRQSOURCE HWREG32(PER_BASE_40000000 + 0x6C) /* Core3 IRQ Source */
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#define C0_FIQSOURCE HWREG32(PER_BASE_40000000 + 0x70) /* Core0 FIQ Source */
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#define C1_FIQSOURCE HWREG32(PER_BASE_40000000 + 0x74) /* Core1 FIQ Source */
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#define C2_FIQSOURCE HWREG32(PER_BASE_40000000 + 0x78) /* Core2 FIQ Source */
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#define C3_FIQSOURCE HWREG32(PER_BASE_40000000 + 0x7C) /* Core3 FIQ Source */
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#define CORE_IRQSOURCE(n) HWREG32(PER_BASE_40000000 + 0x60+ n*0x4)
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#define CORE_FIQSOURCE(n) HWREG32(PER_BASE_40000000 + 0x70+ n*0x4)
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#define CORE_MAILBOX3_SET(n) HWREG32(PER_BASE_40000000 + 0x8C + n*0x10)
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#define CORE_MAILBOX3_CLEAR(n) HWREG32(PER_BASE_40000000 + 0xCC + n*0x10)
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#define CORE_MAILBOX2_SET(n) HWREG32(PER_BASE_40000000 + 0x88 + n*0x10)
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#define CORE_MAILBOX2_CLEAR(n) HWREG32(PER_BASE_40000000 + 0xC8 + n*0x10)
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#define CORE_MAILBOX1_SET(n) HWREG32(PER_BASE_40000000 + 0x84 + n*0x10)
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#define CORE_MAILBOX1_CLEAR(n) HWREG32(PER_BASE_40000000 + 0xC4 + n*0x10)
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#define CORE_MAILBOX0_SET(n) HWREG32(PER_BASE_40000000 + 0x80 + n*0x10)
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#define CORE_MAILBOX0_CLEAR(n) HWREG32(PER_BASE_40000000 + 0xC0 + n*0x10)
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/* For SMP IPI use MailBox0 */
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#define IPI_MAILBOX_SET CORE_MAILBOX0_SET
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#define IPI_MAILBOX_CLEAR CORE_MAILBOX0_CLEAR
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#define IPI_MAILBOX_INT_MASK (0x01)
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enum spi_bit_order
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{
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BCM283X_SPI_BIT_ORDER_LSBFIRST = 0, /*!< LSB First */
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BCM283X_SPI_BIT_ORDER_MSBFIRST = 1 /*!< MSB First */
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};
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enum spi_mode
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{
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BCM283X_SPI_MODE0 = 0, /*!< CPOL = 0, CPHA = 0 */
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BCM283X_SPI_MODE1 = 1, /*!< CPOL = 0, CPHA = 1 */
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BCM283X_SPI_MODE2 = 2, /*!< CPOL = 1, CPHA = 0 */
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BCM283X_SPI_MODE3 = 3 /*!< CPOL = 1, CPHA = 1 */
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};
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enum spi_chip_select
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{
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BCM283X_SPI_CS0 = 0, /*!< Chip Select 0 */
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BCM283X_SPI_CS1 = 1, /*!< Chip Select 1 */
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BCM283X_SPI_CS2 = 2, /*!< Chip Select 2 (ie pins CS1 and CS2 are asserted) */
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BCM283X_SPI_CS_NONE = 3 /*!< No CS, control it yourself */
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};
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enum spi_clock_divider
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{
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BCM283X_SPI_CLOCK_DIVIDER_65536 = 0, /*!< 65536 = 3.814697260kHz on Rpi2, 6.1035156kHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_32768 = 32768, /*!< 32768 = 7.629394531kHz on Rpi2, 12.20703125kHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_16384 = 16384, /*!< 16384 = 15.25878906kHz on Rpi2, 24.4140625kHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_8192 = 8192, /*!< 8192 = 30.51757813kHz on Rpi2, 48.828125kHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_4096 = 4096, /*!< 4096 = 61.03515625kHz on Rpi2, 97.65625kHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_2048 = 2048, /*!< 2048 = 122.0703125kHz on Rpi2, 195.3125kHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_1024 = 1024, /*!< 1024 = 244.140625kHz on Rpi2, 390.625kHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_512 = 512, /*!< 512 = 488.28125kHz on Rpi2, 781.25kHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_256 = 256, /*!< 256 = 976.5625kHz on Rpi2, 1.5625MHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_128 = 128, /*!< 128 = 1.953125MHz on Rpi2, 3.125MHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_64 = 64, /*!< 64 = 3.90625MHz on Rpi2, 6.250MHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_32 = 32, /*!< 32 = 7.8125MHz on Rpi2, 12.5MHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_16 = 16, /*!< 16 = 15.625MHz on Rpi2, 25MHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_8 = 8, /*!< 8 = 31.25MHz on Rpi2, 50MHz on RPI3 */
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BCM283X_SPI_CLOCK_DIVIDER_4 = 4, /*!< 4 = 62.5MHz on Rpi2, 100MHz on RPI3. Dont expect this speed to work reliably. */
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BCM283X_SPI_CLOCK_DIVIDER_2 = 2, /*!< 2 = 125MHz on Rpi2, 200MHz on RPI3, fastest you can get. Dont expect this speed to work reliably.*/
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BCM283X_SPI_CLOCK_DIVIDER_1 = 1 /*!< 1 = 3.814697260kHz on Rpi2, 6.1035156kHz on RPI3, same as 0/65536 */
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};
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/*redefine for raspi*/
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typedef gpio_function_select raspi_pin_select;
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typedef enum
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{
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RPI_GPIO_P1_01 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_02 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_03 = BCM_GPIO_PIN_2,
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RPI_GPIO_P1_04 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_05 = BCM_GPIO_PIN_3,
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RPI_GPIO_P1_06 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_07 = BCM_GPIO_PIN_4,
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RPI_GPIO_P1_08 = BCM_GPIO_PIN_14,
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RPI_GPIO_P1_09 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_10 = BCM_GPIO_PIN_15,
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RPI_GPIO_P1_11 = BCM_GPIO_PIN_17,
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RPI_GPIO_P1_12 = BCM_GPIO_PIN_18,
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RPI_GPIO_P1_13 = BCM_GPIO_PIN_27,
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RPI_GPIO_P1_14 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_15 = BCM_GPIO_PIN_22,
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RPI_GPIO_P1_16 = BCM_GPIO_PIN_23,
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RPI_GPIO_P1_17 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_18 = BCM_GPIO_PIN_24,
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RPI_GPIO_P1_19 = BCM_GPIO_PIN_10,
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RPI_GPIO_P1_20 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_21 = BCM_GPIO_PIN_9,
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RPI_GPIO_P1_22 = BCM_GPIO_PIN_25,
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RPI_GPIO_P1_23 = BCM_GPIO_PIN_11,
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RPI_GPIO_P1_24 = BCM_GPIO_PIN_8,
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RPI_GPIO_P1_25 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_26 = BCM_GPIO_PIN_7,
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RPI_GPIO_P1_27 = BCM_GPIO_PIN_0,
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RPI_GPIO_P1_28 = BCM_GPIO_PIN_1,
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RPI_GPIO_P1_29 = BCM_GPIO_PIN_5,
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RPI_GPIO_P1_30 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_31 = BCM_GPIO_PIN_6,
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RPI_GPIO_P1_32 = BCM_GPIO_PIN_12,
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RPI_GPIO_P1_33 = BCM_GPIO_PIN_13,
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RPI_GPIO_P1_34 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_35 = BCM_GPIO_PIN_19,
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RPI_GPIO_P1_36 = BCM_GPIO_PIN_16,
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RPI_GPIO_P1_37 = BCM_GPIO_PIN_26,
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RPI_GPIO_P1_38 = BCM_GPIO_PIN_20,
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RPI_GPIO_P1_39 = BCM_GPIO_PIN_NULL,
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RPI_GPIO_P1_40 = BCM_GPIO_PIN_21,
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} raspi_gpio_pin;
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typedef enum
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{
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BCM283X_I2C_CLOCK_DIVIDER_2500 = 2500, /* 2500 = 10us = 100 kHz */
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BCM283X_I2C_CLOCK_DIVIDER_626 = 626, /* 622 = 2.504us = 399.3610 kHz */
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BCM283X_I2C_CLOCK_DIVIDER_150 = 150, /* 150 = 60ns = 1.666 MHz (default at reset) */
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BCM283X_I2C_CLOCK_DIVIDER_148 = 148 /* 148 = 59ns = 1.689 MHz */
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} i2c_clock_divider;
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typedef enum
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{
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BCM283X_I2C_REASON_OK = 0x00, /* Success */
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BCM283X_I2C_REASON_ERROR_NACK = 0x01, /* Received a NACK */
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BCM283X_I2C_REASON_ERROR_CLKT = 0x02, /* Received Clock Stretch Timeout */
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BCM283X_I2C_REASON_ERROR_DATA = 0x04 /* Not all data is sent / received */
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} i2c_reason_codes;
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#endif
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