Include dependency graph for imx_gpio.c:

Data Structures
struct	imx_gpio_regs

Macros
#define	IMX_GPIO_BASE 0x0209c000

#define	IMX_GPIO_REGS_COUNT 8

#define	IMX_GPIO_SIZE 0x00004000

Functions
struct imx_gpio_regs	__attribute__ ((aligned(IMX_GPIO_SIZE)))

	COMMAND_HANDLER (imx_gpio_handle_jtag_gpionum_srst)

	COMMAND_HANDLER (imx_gpio_handle_jtag_gpionum_tck)

	COMMAND_HANDLER (imx_gpio_handle_jtag_gpionum_tdi)

	COMMAND_HANDLER (imx_gpio_handle_jtag_gpionum_tdo)

	COMMAND_HANDLER (imx_gpio_handle_jtag_gpionum_tms)

	COMMAND_HANDLER (imx_gpio_handle_jtag_gpionum_trst)

	COMMAND_HANDLER (imx_gpio_handle_jtag_gpionums)

	COMMAND_HANDLER (imx_gpio_handle_peripheral_base)

	COMMAND_HANDLER (imx_gpio_handle_speed_coeffs)

	COMMAND_HANDLER (imx_gpio_handle_swd_gpionum_swclk)

	COMMAND_HANDLER (imx_gpio_handle_swd_gpionum_swdio)

	COMMAND_HANDLER (imx_gpio_handle_swd_gpionums)

static void	gpio_clear (int g)

static bool	gpio_level (int g)

static bool	gpio_mode_get (int g)

static void	gpio_mode_input_set (int g)

static void	gpio_mode_output_set (int g)

static void	gpio_mode_set (int g, int m)

static void	gpio_set (int g)

static int	imx_gpio_init (void)

static bool	imx_gpio_jtag_mode_possible (void)

static int	imx_gpio_khz (int khz, int *jtag_speed)

static int	imx_gpio_quit (void)

static bb_value_t	imx_gpio_read (void)

static int	imx_gpio_reset (int trst, int srst)

static int	imx_gpio_speed (int speed)

static int	imx_gpio_speed_div (int speed, int *khz)

static bool	imx_gpio_swd_mode_possible (void)

static int	imx_gpio_swd_write (int swclk, int swdio)

static void	imx_gpio_swdio_drive (bool is_output)

static int	imx_gpio_swdio_read (void)

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

static int	is_gpio_valid (int gpio)

Variables
static int	dev_mem_fd

uint32_t	dr

uint32_t	edge_sel

uint32_t	gdir

uint32_t	icr1

uint32_t	icr2

uint32_t	imr

struct adapter_driver	imx_gpio_adapter_driver

static struct bitbang_interface	imx_gpio_bitbang

static const struct command_registration	imx_gpio_command_handlers []

static struct jtag_interface	imx_gpio_interface

static uint32_t	imx_gpio_peri_base = IMX_GPIO_BASE

static const char *const	imx_gpio_transports [] = { "jtag", "swd", NULL }

uint32_t	isr

static unsigned int	jtag_delay

static volatile struct imx_gpio_regs *	pio_base

uint32_t	psr

static int	speed_coeff = 50000

static int	speed_offset = 100

static int	srst_gpio = -1

static int	srst_gpio_mode

static int	swclk_gpio = -1

static int	swclk_gpio_mode

static int	swdio_gpio = -1

static int	swdio_gpio_mode

static int	tck_gpio = -1

static int	tck_gpio_mode

static int	tdi_gpio = -1

static int	tdi_gpio_mode

static int	tdo_gpio = -1

static int	tdo_gpio_mode

static int	tms_gpio = -1

static int	tms_gpio_mode

static int	trst_gpio = -1

static int	trst_gpio_mode

Macro Definition Documentation

◆ IMX_GPIO_BASE

#define IMX_GPIO_BASE 0x0209c000

Definition at line 19 of file imx_gpio.c.

◆ IMX_GPIO_REGS_COUNT

#define IMX_GPIO_REGS_COUNT 8

Definition at line 21 of file imx_gpio.c.

◆ IMX_GPIO_SIZE

#define IMX_GPIO_SIZE 0x00004000

Definition at line 20 of file imx_gpio.c.

Function Documentation

◆ attribute()

struct imx_gpio_regs __attribute__ ( (aligned(IMX_GPIO_SIZE)) )

◆ COMMAND_HANDLER() [1/12]

COMMAND_HANDLER ( imx_gpio_handle_jtag_gpionum_srst )

Definition at line 257 of file imx_gpio.c.

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

◆ COMMAND_HANDLER() [2/12]

COMMAND_HANDLER ( imx_gpio_handle_jtag_gpionum_tck )

Definition at line 221 of file imx_gpio.c.

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

◆ COMMAND_HANDLER() [3/12]

COMMAND_HANDLER ( imx_gpio_handle_jtag_gpionum_tdi )

Definition at line 248 of file imx_gpio.c.

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

◆ COMMAND_HANDLER() [4/12]

COMMAND_HANDLER ( imx_gpio_handle_jtag_gpionum_tdo )

Definition at line 239 of file imx_gpio.c.

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

◆ COMMAND_HANDLER() [5/12]

COMMAND_HANDLER ( imx_gpio_handle_jtag_gpionum_tms )

Definition at line 230 of file imx_gpio.c.

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

◆ COMMAND_HANDLER() [6/12]

COMMAND_HANDLER ( imx_gpio_handle_jtag_gpionum_trst )

Definition at line 266 of file imx_gpio.c.

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

◆ COMMAND_HANDLER() [7/12]

COMMAND_HANDLER ( imx_gpio_handle_jtag_gpionums )

Definition at line 203 of file imx_gpio.c.

References CMD, CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, command_print(), ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, tck_gpio, tdi_gpio, tdo_gpio, and tms_gpio.

◆ COMMAND_HANDLER() [8/12]

COMMAND_HANDLER ( imx_gpio_handle_peripheral_base )

Definition at line 321 of file imx_gpio.c.

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

◆ COMMAND_HANDLER() [9/12]

COMMAND_HANDLER ( imx_gpio_handle_speed_coeffs )

Definition at line 309 of file imx_gpio.c.

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

◆ COMMAND_HANDLER() [10/12]

COMMAND_HANDLER ( imx_gpio_handle_swd_gpionum_swclk )

Definition at line 291 of file imx_gpio.c.

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

◆ COMMAND_HANDLER() [11/12]

COMMAND_HANDLER ( imx_gpio_handle_swd_gpionum_swdio )

Definition at line 300 of file imx_gpio.c.

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

◆ COMMAND_HANDLER() [12/12]

COMMAND_HANDLER ( imx_gpio_handle_swd_gpionums )

Definition at line 275 of file imx_gpio.c.

References CMD, CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, command_print(), ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, swclk_gpio, and swdio_gpio.

◆ gpio_clear()

static void gpio_clear ( int g )

inlinestatic

Definition at line 65 of file imx_gpio.c.

References imx_gpio_regs::dr, and pio_base.

Referenced by imx_gpio_init(), imx_gpio_reset(), imx_gpio_swd_write(), and imx_gpio_write().

◆ gpio_level()

static bool gpio_level ( int g )

inlinestatic

Definition at line 70 of file imx_gpio.c.

References imx_gpio_regs::dr, and pio_base.

Referenced by imx_gpio_read(), and imx_gpio_swdio_read().

◆ gpio_mode_get()

static bool gpio_mode_get ( int g )

inlinestatic

Definition at line 40 of file imx_gpio.c.

References imx_gpio_regs::gdir, and pio_base.

Referenced by imx_gpio_init().

◆ gpio_mode_input_set()

static void gpio_mode_input_set ( int g )

inlinestatic

Definition at line 45 of file imx_gpio.c.

References imx_gpio_regs::gdir, and pio_base.

Referenced by gpio_mode_set(), imx_gpio_init(), and imx_gpio_swdio_drive().

◆ gpio_mode_output_set()

static void gpio_mode_output_set ( int g )

inlinestatic

Definition at line 50 of file imx_gpio.c.

References imx_gpio_regs::gdir, and pio_base.

Referenced by gpio_mode_set(), imx_gpio_init(), and imx_gpio_swdio_drive().

◆ gpio_mode_set()

static void gpio_mode_set	(	int	g,
		int	m
	)

inlinestatic

Definition at line 55 of file imx_gpio.c.

References gpio_mode_input_set(), and gpio_mode_output_set().

Referenced by imx_gpio_quit().

◆ gpio_set()

static void gpio_set ( int g )

inlinestatic

Definition at line 60 of file imx_gpio.c.

References imx_gpio_regs::dr, and pio_base.

Referenced by imx_gpio_init(), imx_gpio_reset(), imx_gpio_swd_write(), and imx_gpio_write().

◆ imx_gpio_init()

static int imx_gpio_init ( void )

static

◆ imx_gpio_jtag_mode_possible()

static bool imx_gpio_jtag_mode_possible ( void )

static

Definition at line 443 of file imx_gpio.c.

References is_gpio_valid(), tck_gpio, tdi_gpio, tdo_gpio, and tms_gpio.

Referenced by imx_gpio_init().

◆ imx_gpio_khz()

static int imx_gpio_khz	(	int	khz,
		int *	jtag_speed
	)

static

Definition at line 174 of file imx_gpio.c.

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

◆ imx_gpio_quit()

static int imx_gpio_quit ( void )

static

Definition at line 548 of file imx_gpio.c.

References ERROR_OK, gpio_mode_set(), srst_gpio, srst_gpio_mode, swclk_gpio, swclk_gpio_mode, swdio_gpio, swdio_gpio_mode, tck_gpio, tck_gpio_mode, tdi_gpio, tdi_gpio_mode, tdo_gpio, tdo_gpio_mode, tms_gpio, tms_gpio_mode, transport_is_jtag(), transport_is_swd(), trst_gpio, and trst_gpio_mode.

◆ imx_gpio_read()

static bb_value_t imx_gpio_read ( void )

static

Definition at line 121 of file imx_gpio.c.

References BB_HIGH, BB_LOW, gpio_level(), and tdo_gpio.

◆ imx_gpio_reset()

static int imx_gpio_reset	(	int	trst,
		int	srst
	)

static

Definition at line 150 of file imx_gpio.c.

References ERROR_OK, gpio_clear(), gpio_set(), srst_gpio, and trst_gpio.

◆ imx_gpio_speed()

static int imx_gpio_speed ( int speed )

static

Definition at line 192 of file imx_gpio.c.

References ERROR_OK, and jtag_delay.

◆ imx_gpio_speed_div()

static int imx_gpio_speed_div	(	int	speed,
		int *	khz
	)

static

Definition at line 186 of file imx_gpio.c.

References ERROR_OK, speed_coeff, and speed_offset.

◆ imx_gpio_swd_mode_possible()

static bool imx_gpio_swd_mode_possible ( void )

static

Definition at line 456 of file imx_gpio.c.

References is_gpio_valid(), swclk_gpio, and swdio_gpio.

Referenced by imx_gpio_init().

◆ imx_gpio_swd_write()

static int imx_gpio_swd_write	(	int	swclk,
		int	swdio
	)

static

Definition at line 138 of file imx_gpio.c.

References ERROR_OK, gpio_clear(), gpio_set(), jtag_delay, swclk_gpio, and swdio_gpio.

◆ imx_gpio_swdio_drive()

static void imx_gpio_swdio_drive ( bool is_output )

static

Definition at line 161 of file imx_gpio.c.

References gpio_mode_input_set(), gpio_mode_output_set(), and swdio_gpio.

◆ imx_gpio_swdio_read()

static int imx_gpio_swdio_read ( void )

static

Definition at line 169 of file imx_gpio.c.

References gpio_level(), and swdio_gpio.

◆ imx_gpio_write()

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

static

Definition at line 126 of file imx_gpio.c.

References ERROR_OK, gpio_clear(), gpio_set(), jtag_delay, tck_gpio, tdi_gpio, and tms_gpio.

◆ is_gpio_valid()

static int is_gpio_valid ( int gpio )

static

Definition at line 198 of file imx_gpio.c.

References IMX_GPIO_REGS_COUNT.

Referenced by imx_gpio_jtag_mode_possible(), and imx_gpio_swd_mode_possible().

Variable Documentation

◆ dev_mem_fd

int dev_mem_fd

static

Definition at line 36 of file imx_gpio.c.

Referenced by imx_gpio_init().

◆ dr

uint32_t dr

Definition at line 0 of file imx_gpio.c.

◆ edge_sel

uint32_t edge_sel

Definition at line 7 of file imx_gpio.c.

◆ gdir

uint32_t gdir

Definition at line 1 of file imx_gpio.c.

◆ icr1

uint32_t icr1

Definition at line 3 of file imx_gpio.c.

◆ icr2

uint32_t icr2

Definition at line 4 of file imx_gpio.c.

◆ imr

uint32_t imr

Definition at line 5 of file imx_gpio.c.

◆ imx_gpio_adapter_driver

struct adapter_driver imx_gpio_adapter_driver

Initial value:

= {
    .name = "imx_gpio",
    .transports = imx_gpio_transports,
    .commands = imx_gpio_command_handlers,
 
    .init = imx_gpio_init,
    .quit = imx_gpio_quit,
    .reset = imx_gpio_reset,
    .speed = imx_gpio_speed,
    .khz = imx_gpio_khz,
    .speed_div = imx_gpio_speed_div,
 
    .jtag_ops = &imx_gpio_interface,
    .swd_ops = &bitbang_swd,
}

Definition at line 420 of file imx_gpio.c.

◆ imx_gpio_bitbang

struct bitbang_interface imx_gpio_bitbang

static

Initial value:

= {
    .read = imx_gpio_read,
    .write = imx_gpio_write,
    .swdio_read = imx_gpio_swdio_read,
    .swdio_drive = imx_gpio_swdio_drive,
    .swd_write = imx_gpio_swd_write,
    .blink = NULL
}

Definition at line 83 of file imx_gpio.c.

Referenced by imx_gpio_init().

◆ imx_gpio_command_handlers

const struct command_registration imx_gpio_command_handlers[]

static

Definition at line 321 of file imx_gpio.c.

◆ imx_gpio_interface

struct jtag_interface imx_gpio_interface

static

Initial value:

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

Definition at line 420 of file imx_gpio.c.

◆ imx_gpio_peri_base

uint32_t imx_gpio_peri_base = IMX_GPIO_BASE

static

Definition at line 23 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), and imx_gpio_init().

◆ imx_gpio_transports

const char* const imx_gpio_transports[] = { "jtag", "swd", NULL }

static

Definition at line 420 of file imx_gpio.c.

◆ isr

uint32_t isr

Definition at line 6 of file imx_gpio.c.

◆ jtag_delay

unsigned int jtag_delay

static

Definition at line 119 of file imx_gpio.c.

Referenced by imx_gpio_speed(), imx_gpio_swd_write(), and imx_gpio_write().

◆ pio_base

volatile struct imx_gpio_regs* pio_base

static

Definition at line 37 of file imx_gpio.c.

Referenced by gpio_clear(), gpio_level(), gpio_mode_get(), gpio_mode_input_set(), gpio_mode_output_set(), gpio_set(), and imx_gpio_init().

◆ psr

uint32_t psr

Definition at line 2 of file imx_gpio.c.

◆ speed_coeff

int speed_coeff = 50000

static

Definition at line 117 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), imx_gpio_khz(), and imx_gpio_speed_div().

◆ speed_offset

int speed_offset = 100

static

Definition at line 118 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), imx_gpio_khz(), and imx_gpio_speed_div().

◆ srst_gpio

int srst_gpio = -1

static

Definition at line 105 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), imx_gpio_init(), imx_gpio_quit(), and imx_gpio_reset().

◆ srst_gpio_mode

int srst_gpio_mode

static

Definition at line 106 of file imx_gpio.c.

Referenced by imx_gpio_init(), and imx_gpio_quit().

◆ swclk_gpio

int swclk_gpio = -1

static

Definition at line 107 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), imx_gpio_init(), imx_gpio_quit(), imx_gpio_swd_mode_possible(), and imx_gpio_swd_write().

◆ swclk_gpio_mode

int swclk_gpio_mode

static

Definition at line 108 of file imx_gpio.c.

Referenced by imx_gpio_init(), and imx_gpio_quit().

◆ swdio_gpio

int swdio_gpio = -1

static

Definition at line 109 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), imx_gpio_init(), imx_gpio_quit(), imx_gpio_swd_mode_possible(), imx_gpio_swd_write(), imx_gpio_swdio_drive(), and imx_gpio_swdio_read().

◆ swdio_gpio_mode

int swdio_gpio_mode

static

Definition at line 110 of file imx_gpio.c.

Referenced by imx_gpio_init(), and imx_gpio_quit().

◆ tck_gpio

int tck_gpio = -1

static

Definition at line 95 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), imx_gpio_init(), imx_gpio_jtag_mode_possible(), imx_gpio_quit(), and imx_gpio_write().

◆ tck_gpio_mode

int tck_gpio_mode

static

Definition at line 96 of file imx_gpio.c.

Referenced by imx_gpio_init(), and imx_gpio_quit().

◆ tdi_gpio

int tdi_gpio = -1

static

Definition at line 99 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), imx_gpio_init(), imx_gpio_jtag_mode_possible(), imx_gpio_quit(), and imx_gpio_write().

◆ tdi_gpio_mode

int tdi_gpio_mode

static

Definition at line 100 of file imx_gpio.c.

Referenced by imx_gpio_init(), and imx_gpio_quit().

◆ tdo_gpio

int tdo_gpio = -1

static

Definition at line 101 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), imx_gpio_init(), imx_gpio_jtag_mode_possible(), imx_gpio_quit(), and imx_gpio_read().

◆ tdo_gpio_mode

int tdo_gpio_mode

static

Definition at line 102 of file imx_gpio.c.

Referenced by imx_gpio_init(), and imx_gpio_quit().

◆ tms_gpio

int tms_gpio = -1

static

Definition at line 97 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), imx_gpio_init(), imx_gpio_jtag_mode_possible(), imx_gpio_quit(), and imx_gpio_write().

◆ tms_gpio_mode

int tms_gpio_mode

static

Definition at line 98 of file imx_gpio.c.

Referenced by imx_gpio_init(), and imx_gpio_quit().

◆ trst_gpio

int trst_gpio = -1

static

Definition at line 103 of file imx_gpio.c.

Referenced by COMMAND_HANDLER(), imx_gpio_init(), imx_gpio_quit(), and imx_gpio_reset().

◆ trst_gpio_mode

int trst_gpio_mode

static

Definition at line 104 of file imx_gpio.c.

Referenced by imx_gpio_init(), and imx_gpio_quit().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ IMX_GPIO_BASE

◆ IMX_GPIO_REGS_COUNT

◆ IMX_GPIO_SIZE

Function Documentation

◆ __attribute__()

◆ COMMAND_HANDLER() [1/12]

◆ COMMAND_HANDLER() [2/12]

◆ COMMAND_HANDLER() [3/12]

◆ COMMAND_HANDLER() [4/12]

◆ COMMAND_HANDLER() [5/12]

◆ COMMAND_HANDLER() [6/12]

◆ COMMAND_HANDLER() [7/12]

◆ COMMAND_HANDLER() [8/12]

◆ COMMAND_HANDLER() [9/12]

◆ COMMAND_HANDLER() [10/12]

◆ COMMAND_HANDLER() [11/12]

◆ COMMAND_HANDLER() [12/12]

◆ gpio_clear()

◆ gpio_level()

◆ gpio_mode_get()

◆ gpio_mode_input_set()

◆ gpio_mode_output_set()

◆ gpio_mode_set()

◆ gpio_set()

◆ imx_gpio_init()

◆ imx_gpio_jtag_mode_possible()

◆ imx_gpio_khz()

◆ imx_gpio_quit()

◆ imx_gpio_read()

◆ imx_gpio_reset()

◆ imx_gpio_speed()

◆ imx_gpio_speed_div()

◆ imx_gpio_swd_mode_possible()

◆ imx_gpio_swd_write()

◆ imx_gpio_swdio_drive()

◆ imx_gpio_swdio_read()

◆ imx_gpio_write()

◆ is_gpio_valid()

Variable Documentation

◆ dev_mem_fd

◆ dr

◆ edge_sel

◆ gdir

◆ icr1

◆ icr2

◆ imr

◆ imx_gpio_adapter_driver

◆ imx_gpio_bitbang

◆ imx_gpio_command_handlers

◆ imx_gpio_interface

◆ imx_gpio_peri_base

◆ imx_gpio_transports

◆ isr

◆ jtag_delay

◆ pio_base

◆ psr

◆ speed_coeff

◆ speed_offset

◆ srst_gpio

◆ srst_gpio_mode

◆ swclk_gpio

◆ swclk_gpio_mode

◆ swdio_gpio

◆ swdio_gpio_mode

◆ tck_gpio

◆ tck_gpio_mode

◆ tdi_gpio

◆ tdi_gpio_mode

◆ tdo_gpio

◆ tdo_gpio_mode

◆ tms_gpio

◆ tms_gpio_mode

◆ trst_gpio

◆ trst_gpio_mode

◆ attribute()