Include dependency graph for bcm2835gpio.c:

Data Structures
struct	initial_gpio_state

Macros
#define	BCM2835_GPIO_BASE (bcm2835_peri_base + 0x200000) /* GPIO controller */

#define	BCM2835_GPIO_CLEAR_REG_BITS(offset, bit_mask) (*(pio_base + (offset)) &= ~(bit_mask))

#define	BCM2835_GPIO_CLR_ADDR(gpio_pin_num) (pio_base + 10 + ((gpio_pin_num) / 32))

#define	BCM2835_GPIO_LEVEL_ADDR(gpio_pin_num) (pio_base + 13 + ((gpio_pin_num) / 32))

#define	BCM2835_GPIO_MODE_ADDR(gpio_pin_num) (pio_base + ((gpio_pin_num) / 10))

#define	BCM2835_GPIO_MODE_INPUT 0

#define	BCM2835_GPIO_MODE_OUTPUT 1

#define	BCM2835_GPIO_REG_READ(offset) (*(pio_base + (offset)))

#define	BCM2835_GPIO_REG_WRITE(offset, value) (*(pio_base + (offset)) = (value))

#define	BCM2835_GPIO_SET_ADDR(gpio_pin_num) (pio_base + 7 + ((gpio_pin_num) / 32))

#define	BCM2835_GPIO_SET_REG_BITS(offset, bit_mask) (*(pio_base + (offset)) \|= (bit_mask))

#define	BCM2835_PADS_GPIO_0_27 (bcm2835_peri_base + 0x100000)

#define	BCM2835_PADS_GPIO_0_27_OFFSET (0x2c / 4)

Functions
static void	bcm2835_delay (void)

static bool	bcm2835_get_level (unsigned int gpio_pin_num)

static const char *	bcm2835_get_mem_dev (void)

static unsigned int	bcm2835_get_mode (unsigned int gpio_pin_num)

static void	bcm2835_gpio_clear (unsigned int gpio_pin_num)

static void	bcm2835_gpio_set (unsigned int gpio_pin_num)

static void	bcm2835_gpio_synchronize (void)

static void	bcm2835_set_input (unsigned int gpio_pin_num)

static void	bcm2835_set_mode (unsigned int gpio_pin_num, unsigned char mode)

static void	bcm2835_set_output (unsigned int gpio_pin_num)

static void	bcm2835_swdio_drive (bool is_output)

static int	bcm2835_swdio_read (void)

static int	bcm2835gpio_blink (bool on)

static int	bcm2835gpio_init (void)

static bool	bcm2835gpio_jtag_mode_possible (void)

static int	bcm2835gpio_khz (int khz, int *jtag_speed)

static void	bcm2835gpio_munmap (void)

static int	bcm2835gpio_quit (void)

static enum bb_value	bcm2835gpio_read (void)

static int	bcm2835gpio_reset (int trst, int srst)

static int	bcm2835gpio_speed (int speed)

static int	bcm2835gpio_speed_div (int speed, int *khz)

static bool	bcm2835gpio_swd_mode_possible (void)

static int	bcm2835gpio_swd_write_fast (int swclk, int swdio)

static int	bcm2835gpio_swd_write_generic (int swclk, int swdio)

static int	bcm2835gpio_write (int tck, int tms, int tdi)

	COMMAND_HANDLER (bcm2835gpio_handle_peripheral_base)

	COMMAND_HANDLER (bcm2835gpio_handle_peripheral_mem_dev)

	COMMAND_HANDLER (bcm2835gpio_handle_speed_coeffs)

static void	initialize_gpio (enum adapter_gpio_config_index idx)

static bool	is_gpio_config_valid (enum adapter_gpio_config_index idx)

static void	restore_gpio (enum adapter_gpio_config_index idx)

static void	set_gpio_value (const struct adapter_gpio_config *gpio_config, int value)

Variables
static const struct adapter_gpio_config *	adapter_gpio_config

static off_t	bcm2835_peri_base = 0x20000000

static char *	bcm2835_peri_mem_dev

struct adapter_driver	bcm2835gpio_adapter_driver

static const struct bitbang_interface	bcm2835gpio_bitbang_swd_write_fast

static const struct bitbang_interface	bcm2835gpio_bitbang_swd_write_generic

static const struct command_registration	bcm2835gpio_command_handlers []

static struct jtag_interface	bcm2835gpio_interface

static const struct command_registration	bcm2835gpio_subcommand_handlers []

static int	dev_mem_fd

struct {
volatile uint32_t * swclk_clr_set_addr [2]

uint32_t swclk_mask

bool swdio_active_low

volatile uint32_t * swdio_clr_set_addr [2]

uint32_t swdio_level_shift_bits

uint32_t swdio_mask

volatile uint32_t * swdio_mode_addr

uint32_t swdio_mode_input_mask

uint32_t swdio_mode_output_mask

volatile uint32_t * swdio_read_level_addr

volatile uint32_t * tck_clr_set_addr [2]

uint32_t tck_mask

volatile uint32_t * tdi_clr_set_addr [2]

uint32_t tdi_mask

bool tdo_active_low

uint32_t tdo_level_shift_bits

volatile uint32_t * tdo_read_level_addr

volatile uint32_t * tms_clr_set_addr [2]

uint32_t tms_mask

}	gpio_control

static uint32_t	initial_drive_strength_etc

static struct initial_gpio_state	initial_gpio_state [ADAPTER_GPIO_IDX_NUM]

static unsigned int	jtag_delay

static volatile uint32_t *	pads_base = MAP_FAILED

static volatile uint32_t *	pio_base = MAP_FAILED

static int	speed_coeff = 113714

static int	speed_offset = 28

Macro Definition Documentation

◆ BCM2835_GPIO_BASE

#define BCM2835_GPIO_BASE (bcm2835_peri_base + 0x200000) /* GPIO controller */

Definition at line 24 of file bcm2835gpio.c.

◆ BCM2835_GPIO_CLEAR_REG_BITS

#define BCM2835_GPIO_CLEAR_REG_BITS	(	offset,
		bit_mask
	)	(*(pio_base + (offset)) &= ~(bit_mask))

Definition at line 43 of file bcm2835gpio.c.

◆ BCM2835_GPIO_CLR_ADDR

#define BCM2835_GPIO_CLR_ADDR ( gpio_pin_num ) (pio_base + 10 + ((gpio_pin_num) / 32))

Definition at line 48 of file bcm2835gpio.c.

◆ BCM2835_GPIO_LEVEL_ADDR

#define BCM2835_GPIO_LEVEL_ADDR ( gpio_pin_num ) (pio_base + 13 + ((gpio_pin_num) / 32))

Definition at line 49 of file bcm2835gpio.c.

◆ BCM2835_GPIO_MODE_ADDR

#define BCM2835_GPIO_MODE_ADDR ( gpio_pin_num ) (pio_base + ((gpio_pin_num) / 10))

Definition at line 46 of file bcm2835gpio.c.

◆ BCM2835_GPIO_MODE_INPUT

#define BCM2835_GPIO_MODE_INPUT 0

Definition at line 30 of file bcm2835gpio.c.

◆ BCM2835_GPIO_MODE_OUTPUT

#define BCM2835_GPIO_MODE_OUTPUT 1

Definition at line 31 of file bcm2835gpio.c.

◆ BCM2835_GPIO_REG_READ

#define BCM2835_GPIO_REG_READ ( offset ) (*(pio_base + (offset)))

Definition at line 34 of file bcm2835gpio.c.

◆ BCM2835_GPIO_REG_WRITE

#define BCM2835_GPIO_REG_WRITE	(	offset,
		value
	)	(*(pio_base + (offset)) = (value))

Definition at line 37 of file bcm2835gpio.c.

◆ BCM2835_GPIO_SET_ADDR

#define BCM2835_GPIO_SET_ADDR ( gpio_pin_num ) (pio_base + 7 + ((gpio_pin_num) / 32))

Definition at line 47 of file bcm2835gpio.c.

◆ BCM2835_GPIO_SET_REG_BITS

#define BCM2835_GPIO_SET_REG_BITS	(	offset,
		bit_mask
	)	(*(pio_base + (offset)) \|= (bit_mask))

Definition at line 40 of file bcm2835gpio.c.

◆ BCM2835_PADS_GPIO_0_27

#define BCM2835_PADS_GPIO_0_27 (bcm2835_peri_base + 0x100000)

Definition at line 26 of file bcm2835gpio.c.

◆ BCM2835_PADS_GPIO_0_27_OFFSET

#define BCM2835_PADS_GPIO_0_27_OFFSET (0x2c / 4)

Definition at line 27 of file bcm2835gpio.c.

Function Documentation

◆ bcm2835_delay()

static void bcm2835_delay ( void )

inlinestatic

Definition at line 149 of file bcm2835gpio.c.

References jtag_delay.

Referenced by bcm2835gpio_swd_write_fast(), bcm2835gpio_swd_write_generic(), and bcm2835gpio_write().

◆ bcm2835_get_level()

static bool bcm2835_get_level ( unsigned int gpio_pin_num )

inlinestatic

Definition at line 96 of file bcm2835gpio.c.

References BCM2835_GPIO_REG_READ.

Referenced by bcm2835gpio_read().

◆ bcm2835_get_mem_dev()

static const char* bcm2835_get_mem_dev ( void )

inlinestatic

Definition at line 132 of file bcm2835gpio.c.

References bcm2835_peri_mem_dev.

Referenced by bcm2835gpio_init(), and COMMAND_HANDLER().

◆ bcm2835_get_mode()

static unsigned int bcm2835_get_mode ( unsigned int gpio_pin_num )

inlinestatic

Definition at line 90 of file bcm2835gpio.c.

References BCM2835_GPIO_REG_READ.

Referenced by bcm2835gpio_read().

◆ bcm2835_gpio_clear()

static void bcm2835_gpio_clear ( unsigned int gpio_pin_num )

inlinestatic

Definition at line 127 of file bcm2835gpio.c.

References BCM2835_GPIO_REG_WRITE.

Referenced by restore_gpio(), and set_gpio_value().

◆ bcm2835_gpio_set()

static void bcm2835_gpio_set ( unsigned int gpio_pin_num )

inlinestatic

Definition at line 121 of file bcm2835gpio.c.

References BCM2835_GPIO_REG_WRITE.

Referenced by restore_gpio(), and set_gpio_value().

◆ bcm2835_gpio_synchronize()

static void bcm2835_gpio_synchronize ( void )

inlinestatic

Definition at line 140 of file bcm2835gpio.c.

Referenced by bcm2835_swdio_drive(), bcm2835gpio_read(), bcm2835gpio_swd_write_fast(), bcm2835gpio_write(), restore_gpio(), and set_gpio_value().

◆ bcm2835_set_input()

static void bcm2835_set_input ( unsigned int gpio_pin_num )

inlinestatic

Definition at line 102 of file bcm2835gpio.c.

References BCM2835_GPIO_CLEAR_REG_BITS.

Referenced by bcm2835_set_mode(), bcm2835gpio_read(), and set_gpio_value().

◆ bcm2835_set_mode()

static void bcm2835_set_mode	(	unsigned int	gpio_pin_num,
		unsigned char	mode
	)

inlinestatic

Definition at line 108 of file bcm2835gpio.c.

References BCM2835_GPIO_SET_REG_BITS, bcm2835_set_input(), and mode.

Referenced by bcm2835_set_output(), and restore_gpio().

◆ bcm2835_set_output()

static void bcm2835_set_output ( unsigned int gpio_pin_num )

inlinestatic

Definition at line 115 of file bcm2835gpio.c.

References BCM2835_GPIO_MODE_OUTPUT, and bcm2835_set_mode().

Referenced by bcm2835gpio_read(), and set_gpio_value().

◆ bcm2835_swdio_drive()

static void bcm2835_swdio_drive ( bool is_output )

static

Definition at line 309 of file bcm2835gpio.c.

References ADAPTER_GPIO_IDX_SWDIO_DIR, bcm2835_gpio_synchronize(), gpio_control, is_gpio_config_valid(), and set_gpio_value().

◆ bcm2835_swdio_read()

static int bcm2835_swdio_read ( void )

static

Definition at line 325 of file bcm2835gpio.c.

References gpio_control.

◆ bcm2835gpio_blink()

static int bcm2835gpio_blink ( bool on )

static

Definition at line 468 of file bcm2835gpio.c.

◆ bcm2835gpio_init()

static int bcm2835gpio_init ( void )

static

Definition at line 494 of file bcm2835gpio.c.

References adapter_gpio_config::active_low, ADAPTER_GPIO_DRIVE_MODE_PUSH_PULL, adapter_gpio_get_config(), ADAPTER_GPIO_IDX_LED, ADAPTER_GPIO_IDX_SRST, ADAPTER_GPIO_IDX_SWCLK, ADAPTER_GPIO_IDX_SWDIO, ADAPTER_GPIO_IDX_SWDIO_DIR, ADAPTER_GPIO_IDX_TCK, ADAPTER_GPIO_IDX_TDI, ADAPTER_GPIO_IDX_TDO, ADAPTER_GPIO_IDX_TMS, ADAPTER_GPIO_IDX_TRST, ADAPTER_GPIO_INIT_STATE_INPUT, bcm2835_get_mem_dev(), BCM2835_GPIO_BASE, BCM2835_GPIO_CLR_ADDR, BCM2835_GPIO_LEVEL_ADDR, BCM2835_GPIO_MODE_ADDR, BCM2835_GPIO_SET_ADDR, BCM2835_PADS_GPIO_0_27, BCM2835_PADS_GPIO_0_27_OFFSET, bcm2835gpio_bitbang_swd_write_fast, bcm2835gpio_bitbang_swd_write_generic, bcm2835gpio_jtag_mode_possible(), bcm2835gpio_swd_mode_possible(), dev_mem_fd, ERROR_JTAG_INIT_FAILED, ERROR_OK, gpio_control, adapter_gpio_config::gpio_num, initial_drive_strength_etc, initialize_gpio(), LOG_DEBUG, LOG_ERROR, LOG_INFO, LOG_WARNING, NULL, pads_base, pio_base, transport_is_jtag(), and transport_is_swd().

◆ bcm2835gpio_jtag_mode_possible()

static bool bcm2835gpio_jtag_mode_possible ( void )

static

Definition at line 433 of file bcm2835gpio.c.

References ADAPTER_GPIO_IDX_TCK, ADAPTER_GPIO_IDX_TDI, ADAPTER_GPIO_IDX_TDO, ADAPTER_GPIO_IDX_TMS, and is_gpio_config_valid().

Referenced by bcm2835gpio_init().

◆ bcm2835gpio_khz()

static int bcm2835gpio_khz	(	int	khz,
		int *	jtag_speed
	)

static

Definition at line 331 of file bcm2835gpio.c.

References DIV_ROUND_UP, ERROR_FAIL, ERROR_OK, LOG_DEBUG, speed_coeff, and speed_offset.

◆ bcm2835gpio_munmap()

static void bcm2835gpio_munmap ( void )

static

Definition at line 455 of file bcm2835gpio.c.

References pads_base, and pio_base.

◆ bcm2835gpio_quit()

static int bcm2835gpio_quit ( void )

static

Definition at line 647 of file bcm2835gpio.c.

◆ bcm2835gpio_read()

static enum bb_value bcm2835gpio_read ( void )

static

◆ bcm2835gpio_reset()

static int bcm2835gpio_reset	(	int	trst,
		int	srst
	)

static

Definition at line 287 of file bcm2835gpio.c.

References ADAPTER_GPIO_IDX_SRST, ADAPTER_GPIO_IDX_TRST, ERROR_OK, is_gpio_config_valid(), LOG_DEBUG, and set_gpio_value().

◆ bcm2835gpio_speed()

static int bcm2835gpio_speed ( int speed )

static

Definition at line 352 of file bcm2835gpio.c.

References ERROR_OK, and jtag_delay.

◆ bcm2835gpio_speed_div()

static int bcm2835gpio_speed_div	(	int	speed,
		int *	khz
	)

static

Definition at line 344 of file bcm2835gpio.c.

References ERROR_OK, speed_coeff, and speed_offset.

◆ bcm2835gpio_swd_mode_possible()

static bool bcm2835gpio_swd_mode_possible ( void )

static

Definition at line 446 of file bcm2835gpio.c.

References ADAPTER_GPIO_IDX_SWCLK, ADAPTER_GPIO_IDX_SWDIO, and is_gpio_config_valid().

Referenced by bcm2835gpio_init().

◆ bcm2835gpio_swd_write_fast()

static int bcm2835gpio_swd_write_fast	(	int	swclk,
		int	swdio
	)

static

Definition at line 263 of file bcm2835gpio.c.

References bcm2835_delay(), bcm2835_gpio_synchronize(), ERROR_OK, and gpio_control.

◆ bcm2835gpio_swd_write_generic()

static int bcm2835gpio_swd_write_generic	(	int	swclk,
		int	swdio
	)

static

Definition at line 276 of file bcm2835gpio.c.

References ADAPTER_GPIO_IDX_SWCLK, ADAPTER_GPIO_IDX_SWDIO, bcm2835_delay(), ERROR_OK, and set_gpio_value().

◆ bcm2835gpio_write()

static int bcm2835gpio_write	(	int	tck,
		int	tms,
		int	tdi
	)

static

Definition at line 249 of file bcm2835gpio.c.

References bcm2835_delay(), bcm2835_gpio_synchronize(), ERROR_OK, and gpio_control.

◆ COMMAND_HANDLER() [1/3]

COMMAND_HANDLER ( bcm2835gpio_handle_peripheral_base )

Definition at line 382 of file bcm2835gpio.c.

◆ COMMAND_HANDLER() [2/3]

COMMAND_HANDLER ( bcm2835gpio_handle_peripheral_mem_dev )

Definition at line 370 of file bcm2835gpio.c.

References bcm2835_get_mem_dev(), bcm2835_peri_mem_dev, CMD, CMD_ARGC, CMD_ARGV, command_print(), and ERROR_OK.

◆ COMMAND_HANDLER() [3/3]

COMMAND_HANDLER ( bcm2835gpio_handle_speed_coeffs )

Definition at line 358 of file bcm2835gpio.c.

References CMD, CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, command_print(), ERROR_OK, speed_coeff, and speed_offset.

◆ initialize_gpio()

static void initialize_gpio ( enum adapter_gpio_config_index idx )

static

Definition at line 208 of file bcm2835gpio.c.

Referenced by bcm2835gpio_init().

◆ is_gpio_config_valid()

static bool is_gpio_config_valid ( enum adapter_gpio_config_index idx )

static

Definition at line 155 of file bcm2835gpio.c.

References adapter_gpio_config::gpio_num.

Referenced by bcm2835_swdio_drive(), bcm2835gpio_jtag_mode_possible(), bcm2835gpio_read(), bcm2835gpio_reset(), bcm2835gpio_swd_mode_possible(), and restore_gpio().

◆ restore_gpio()

static void restore_gpio ( enum adapter_gpio_config_index idx )

static

Definition at line 194 of file bcm2835gpio.c.

References bcm2835_gpio_clear(), BCM2835_GPIO_MODE_OUTPUT, bcm2835_gpio_set(), bcm2835_gpio_synchronize(), bcm2835_set_mode(), is_gpio_config_valid(), and mode.

◆ set_gpio_value()

static void set_gpio_value	(	const struct adapter_gpio_config *	gpio_config,
		int	value
	)

static

Definition at line 161 of file bcm2835gpio.c.

References adapter_gpio_config::active_low, ADAPTER_GPIO_DRIVE_MODE_OPEN_DRAIN, ADAPTER_GPIO_DRIVE_MODE_OPEN_SOURCE, ADAPTER_GPIO_DRIVE_MODE_PUSH_PULL, bcm2835_gpio_clear(), bcm2835_gpio_set(), bcm2835_gpio_synchronize(), bcm2835_set_input(), bcm2835_set_output(), adapter_gpio_config::drive, and adapter_gpio_config::gpio_num.

Referenced by bcm2835_swdio_drive(), bcm2835gpio_read(), bcm2835gpio_reset(), and bcm2835gpio_swd_write_generic().

Variable Documentation

◆ adapter_gpio_config

const struct adapter_gpio_config* adapter_gpio_config

static

Definition at line 60 of file bcm2835gpio.c.

◆ bcm2835_peri_base

off_t bcm2835_peri_base = 0x20000000

static

Definition at line 23 of file bcm2835gpio.c.

◆ bcm2835_peri_mem_dev

char* bcm2835_peri_mem_dev

static

Definition at line 22 of file bcm2835gpio.c.

Referenced by bcm2835_get_mem_dev(), and COMMAND_HANDLER().

◆ bcm2835gpio_adapter_driver

struct adapter_driver bcm2835gpio_adapter_driver

Initial value:

= {
    .name = "bcm2835gpio",
    .transport_ids = TRANSPORT_JTAG | TRANSPORT_SWD,
    .transport_preferred_id = TRANSPORT_JTAG,
    .commands = bcm2835gpio_command_handlers,
 
    .init = bcm2835gpio_init,
    .quit = bcm2835gpio_quit,
    .reset = bcm2835gpio_reset,
    .speed = bcm2835gpio_speed,
    .khz = bcm2835gpio_khz,
    .speed_div = bcm2835gpio_speed_div,
 
    .jtag_ops = &bcm2835gpio_interface,
    .swd_ops = &bitbang_swd,
}

Definition at line 647 of file bcm2835gpio.c.

◆ bcm2835gpio_bitbang_swd_write_fast

const struct bitbang_interface bcm2835gpio_bitbang_swd_write_fast

static

Initial value:

= {
    .read = bcm2835gpio_read,
    .write = bcm2835gpio_write,
    .swdio_read = bcm2835_swdio_read,
    .swdio_drive = bcm2835_swdio_drive,
    .swd_write = bcm2835gpio_swd_write_fast,
    .blink = bcm2835gpio_blink,
}

Definition at line 468 of file bcm2835gpio.c.

Referenced by bcm2835gpio_init().

◆ bcm2835gpio_bitbang_swd_write_generic

const struct bitbang_interface bcm2835gpio_bitbang_swd_write_generic

static

Initial value:

= {
    .read = bcm2835gpio_read,
    .write = bcm2835gpio_write,
    .swdio_read = bcm2835_swdio_read,
    .swdio_drive = bcm2835_swdio_drive,
    .swd_write = bcm2835gpio_swd_write_generic,
    .blink = bcm2835gpio_blink,
}

Definition at line 468 of file bcm2835gpio.c.

Referenced by bcm2835gpio_init().

◆ bcm2835gpio_command_handlers

const struct command_registration bcm2835gpio_command_handlers[]

static

Initial value:

= {
    {
        .name = "bcm2835gpio",
        .mode = COMMAND_ANY,
        .help = "perform bcm2835gpio management",
        .chain = bcm2835gpio_subcommand_handlers,
        .usage = "",
    },
    COMMAND_REGISTRATION_DONE
}

Definition at line 382 of file bcm2835gpio.c.

◆ bcm2835gpio_interface

struct jtag_interface bcm2835gpio_interface

static

Initial value:

= {
    .supported = DEBUG_CAP_TMS_SEQ,
    .execute_queue = bitbang_execute_queue,
}

Definition at line 647 of file bcm2835gpio.c.

◆ bcm2835gpio_subcommand_handlers

const struct command_registration bcm2835gpio_subcommand_handlers[]

static

Initial value:

= {
    {
        .name = "speed_coeffs",
        .handler = &bcm2835gpio_handle_speed_coeffs,
        .mode = COMMAND_CONFIG,
        .help = "SPEED_COEFF and SPEED_OFFSET for delay calculations.",
        .usage = "[SPEED_COEFF SPEED_OFFSET]",
    },
    {
        .name = "peripheral_mem_dev",
        .handler = &bcm2835gpio_handle_peripheral_mem_dev,
        .mode = COMMAND_CONFIG,
        .help = "device to map memory mapped GPIOs from.",
        .usage = "[device]",
    },
    {
        .name = "peripheral_base",
        .handler = &bcm2835gpio_handle_peripheral_base,
        .mode = COMMAND_CONFIG,
        .help = "peripheral base to access GPIOs, not needed with /dev/gpiomem.",
        .usage = "[base]",
    },
 
    COMMAND_REGISTRATION_DONE
}

Definition at line 382 of file bcm2835gpio.c.

◆ dev_mem_fd

int dev_mem_fd

static

Definition at line 51 of file bcm2835gpio.c.

Referenced by bcm2835gpio_init().

◆

struct { ... } gpio_control

Referenced by bcm2835_swdio_drive(), bcm2835_swdio_read(), bcm2835gpio_init(), bcm2835gpio_swd_write_fast(), and bcm2835gpio_write().

◆ initial_drive_strength_etc

uint32_t initial_drive_strength_etc

static

Definition at line 65 of file bcm2835gpio.c.

Referenced by bcm2835gpio_init().

◆ initial_gpio_state

struct initial_gpio_state initial_gpio_state[ADAPTER_GPIO_IDX_NUM]

static

◆ jtag_delay

unsigned int jtag_delay

static

Definition at line 58 of file bcm2835gpio.c.

Referenced by bcm2835_delay(), and bcm2835gpio_speed().

◆ pads_base

volatile uint32_t* pads_base = MAP_FAILED

static

Definition at line 53 of file bcm2835gpio.c.

Referenced by bcm2835gpio_init(), and bcm2835gpio_munmap().

◆ pio_base

volatile uint32_t* pio_base = MAP_FAILED

static

Definition at line 52 of file bcm2835gpio.c.

Referenced by bcm2835gpio_init(), and bcm2835gpio_munmap().

◆ speed_coeff

int speed_coeff = 113714

static

Definition at line 56 of file bcm2835gpio.c.

Referenced by bcm2835gpio_khz(), bcm2835gpio_speed_div(), and COMMAND_HANDLER().

◆ speed_offset

int speed_offset = 28

static

Definition at line 57 of file bcm2835gpio.c.

Referenced by bcm2835gpio_khz(), bcm2835gpio_speed_div(), and COMMAND_HANDLER().

◆ swclk_clr_set_addr

volatile uint32_t* swclk_clr_set_addr[2]

Definition at line 76 of file bcm2835gpio.c.

◆ swclk_mask

uint32_t swclk_mask

Definition at line 77 of file bcm2835gpio.c.

◆ swdio_active_low

bool swdio_active_low

Definition at line 72 of file bcm2835gpio.c.

◆ swdio_clr_set_addr

volatile uint32_t* swdio_clr_set_addr[2]

Definition at line 68 of file bcm2835gpio.c.

◆ swdio_level_shift_bits

uint32_t swdio_level_shift_bits

Definition at line 71 of file bcm2835gpio.c.

◆ swdio_mask

uint32_t swdio_mask

Definition at line 69 of file bcm2835gpio.c.

◆ swdio_mode_addr

volatile uint32_t* swdio_mode_addr

Definition at line 73 of file bcm2835gpio.c.

◆ swdio_mode_input_mask

uint32_t swdio_mode_input_mask

Definition at line 74 of file bcm2835gpio.c.

◆ swdio_mode_output_mask

uint32_t swdio_mode_output_mask

Definition at line 75 of file bcm2835gpio.c.

◆ swdio_read_level_addr

volatile uint32_t* swdio_read_level_addr

Definition at line 70 of file bcm2835gpio.c.

◆ tck_clr_set_addr

volatile uint32_t* tck_clr_set_addr[2]

Definition at line 82 of file bcm2835gpio.c.

◆ tck_mask

uint32_t tck_mask

Definition at line 83 of file bcm2835gpio.c.

◆ tdi_clr_set_addr

volatile uint32_t* tdi_clr_set_addr[2]

Definition at line 78 of file bcm2835gpio.c.

◆ tdi_mask

uint32_t tdi_mask

Definition at line 79 of file bcm2835gpio.c.

Referenced by rlink_scan().

◆ tdo_active_low

bool tdo_active_low

Definition at line 86 of file bcm2835gpio.c.

◆ tdo_level_shift_bits

uint32_t tdo_level_shift_bits

Definition at line 85 of file bcm2835gpio.c.

◆ tdo_read_level_addr

volatile uint32_t* tdo_read_level_addr

Definition at line 84 of file bcm2835gpio.c.

◆ tms_clr_set_addr

volatile uint32_t* tms_clr_set_addr[2]

Definition at line 80 of file bcm2835gpio.c.

◆ tms_mask

uint32_t tms_mask

Definition at line 81 of file bcm2835gpio.c.

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ BCM2835_GPIO_BASE

◆ BCM2835_GPIO_CLEAR_REG_BITS

◆ BCM2835_GPIO_CLR_ADDR

◆ BCM2835_GPIO_LEVEL_ADDR

◆ BCM2835_GPIO_MODE_ADDR

◆ BCM2835_GPIO_MODE_INPUT

◆ BCM2835_GPIO_MODE_OUTPUT

◆ BCM2835_GPIO_REG_READ

◆ BCM2835_GPIO_REG_WRITE

◆ BCM2835_GPIO_SET_ADDR

◆ BCM2835_GPIO_SET_REG_BITS

◆ BCM2835_PADS_GPIO_0_27

◆ BCM2835_PADS_GPIO_0_27_OFFSET

Function Documentation

◆ bcm2835_delay()

◆ bcm2835_get_level()

◆ bcm2835_get_mem_dev()

◆ bcm2835_get_mode()

◆ bcm2835_gpio_clear()

◆ bcm2835_gpio_set()

◆ bcm2835_gpio_synchronize()

◆ bcm2835_set_input()

◆ bcm2835_set_mode()

◆ bcm2835_set_output()

◆ bcm2835_swdio_drive()

◆ bcm2835_swdio_read()

◆ bcm2835gpio_blink()

◆ bcm2835gpio_init()

◆ bcm2835gpio_jtag_mode_possible()

◆ bcm2835gpio_khz()

◆ bcm2835gpio_munmap()

◆ bcm2835gpio_quit()

◆ bcm2835gpio_read()

◆ bcm2835gpio_reset()

◆ bcm2835gpio_speed()

◆ bcm2835gpio_speed_div()

◆ bcm2835gpio_swd_mode_possible()

◆ bcm2835gpio_swd_write_fast()

◆ bcm2835gpio_swd_write_generic()

◆ bcm2835gpio_write()

◆ COMMAND_HANDLER() [1/3]

◆ COMMAND_HANDLER() [2/3]

◆ COMMAND_HANDLER() [3/3]

◆ initialize_gpio()

◆ is_gpio_config_valid()

◆ restore_gpio()

◆ set_gpio_value()

Variable Documentation

◆ adapter_gpio_config

◆ bcm2835_peri_base

◆ bcm2835_peri_mem_dev

◆ bcm2835gpio_adapter_driver

◆ bcm2835gpio_bitbang_swd_write_fast

◆ bcm2835gpio_bitbang_swd_write_generic

◆ bcm2835gpio_command_handlers

◆ bcm2835gpio_interface

◆ bcm2835gpio_subcommand_handlers

◆ dev_mem_fd

◆

◆ initial_drive_strength_etc

◆ initial_gpio_state

◆ jtag_delay

◆ pads_base

◆ pio_base

◆ speed_coeff

◆ speed_offset

◆ swclk_clr_set_addr

◆ swclk_mask

◆ swdio_active_low

◆ swdio_clr_set_addr

◆ swdio_level_shift_bits

◆ swdio_mask

◆ swdio_mode_addr

◆ swdio_mode_input_mask

◆ swdio_mode_output_mask