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Port ps2_usb to mbed

core
tmk 10 years ago
parent
1b23028a38
commit
daf232794e
8 changed files with 189 additions and 85 deletions
Split View Show Diff Stats
  1. 1
    0
      common/progmem.h
  2. 1
    0
      protocol.mk
  3. 7
    58
      protocol/ps2.h
  4. 10
    6
      protocol/ps2_busywait.c
  5. 15
    0
      protocol/ps2_io.h
  6. 74
    0
      protocol/ps2_io_avr.c
  7. 60
    0
      protocol/ps2_io_mbed.c
  8. 21
    21
      tool/mbed/common.mk

+ 1
- 0
common/progmem.h View File

@@ -6,6 +6,7 @@
#elif defined(__arm__)
# define PROGMEM
# define pgm_read_byte(p) *(p)
# define pgm_read_word(p) *(p)
#endif

#endif

+ 1
- 0
protocol.mk View File

@@ -9,6 +9,7 @@ endif

ifdef PS2_USE_BUSYWAIT
SRC += protocol/ps2_busywait.c
SRC += protocol/ps2_io_avr.c
OPT_DEFS += -DPS2_USE_BUSYWAIT
endif


+ 7
- 58
protocol/ps2.h View File

@@ -39,8 +39,9 @@ POSSIBILITY OF SUCH DAMAGE.
#define PS2_H

#include <stdbool.h>
#include <util/delay.h>
#include <avr/io.h>
#include "wait.h"
#include "ps2_io.h"
#include "print.h"

/*
* Primitive PS/2 Library for AVR
@@ -92,79 +93,27 @@ uint8_t ps2_host_recv(void);
void ps2_host_set_led(uint8_t usb_led);


/* Check port settings for clock and data line */
#if !(defined(PS2_CLOCK_PORT) && \
defined(PS2_CLOCK_PIN) && \
defined(PS2_CLOCK_DDR) && \
defined(PS2_CLOCK_BIT))
# error "PS/2 clock port setting is required in config.h"
#endif

#if !(defined(PS2_DATA_PORT) && \
defined(PS2_DATA_PIN) && \
defined(PS2_DATA_DDR) && \
defined(PS2_DATA_BIT))
# error "PS/2 data port setting is required in config.h"
#endif

/*--------------------------------------------------------------------
* static functions
*------------------------------------------------------------------*/
static inline void clock_lo(void)
{
PS2_CLOCK_PORT &= ~(1<<PS2_CLOCK_BIT);
PS2_CLOCK_DDR |= (1<<PS2_CLOCK_BIT);
}
static inline void clock_hi(void)
{
/* input with pull up */
PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT);
PS2_CLOCK_PORT |= (1<<PS2_CLOCK_BIT);
}
static inline bool clock_in(void)
{
PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT);
PS2_CLOCK_PORT |= (1<<PS2_CLOCK_BIT);
_delay_us(1);
return PS2_CLOCK_PIN&(1<<PS2_CLOCK_BIT);
}
static inline void data_lo(void)
{
PS2_DATA_PORT &= ~(1<<PS2_DATA_BIT);
PS2_DATA_DDR |= (1<<PS2_DATA_BIT);
}
static inline void data_hi(void)
{
/* input with pull up */
PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT);
PS2_DATA_PORT |= (1<<PS2_DATA_BIT);
}
static inline bool data_in(void)
{
PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT);
PS2_DATA_PORT |= (1<<PS2_DATA_BIT);
_delay_us(1);
return PS2_DATA_PIN&(1<<PS2_DATA_BIT);
}

static inline uint16_t wait_clock_lo(uint16_t us)
{
while (clock_in() && us) { asm(""); _delay_us(1); us--; }
while (clock_in() && us) { asm(""); wait_us(1); us--; }
return us;
}
static inline uint16_t wait_clock_hi(uint16_t us)
{
while (!clock_in() && us) { asm(""); _delay_us(1); us--; }
while (!clock_in() && us) { asm(""); wait_us(1); us--; }
return us;
}
static inline uint16_t wait_data_lo(uint16_t us)
{
while (data_in() && us) { asm(""); _delay_us(1); us--; }
while (data_in() && us) { asm(""); wait_us(1); us--; }
return us;
}
static inline uint16_t wait_data_hi(uint16_t us)
{
while (!data_in() && us) { asm(""); _delay_us(1); us--; }
while (!data_in() && us) { asm(""); wait_us(1); us--; }
return us;
}


+ 10
- 6
protocol/ps2_busywait.c View File

@@ -40,8 +40,9 @@ POSSIBILITY OF SUCH DAMAGE.
*/

#include <stdbool.h>
#include <util/delay.h>
#include "wait.h"
#include "ps2.h"
#include "ps2_io.h"
#include "debug.h"


@@ -58,8 +59,11 @@ uint8_t ps2_error = PS2_ERR_NONE;

void ps2_host_init(void)
{
clock_init();
data_init();

// POR(150-2000ms) plus BAT(300-500ms) may take 2.5sec([3]p.20)
_delay_ms(2500);
wait_ms(2500);

inhibit();
}
@@ -71,7 +75,7 @@ uint8_t ps2_host_send(uint8_t data)

/* terminate a transmission if we have */
inhibit();
_delay_us(100); // 100us [4]p.13, [5]p.50
wait_us(100); // 100us [4]p.13, [5]p.50

/* 'Request to Send' and Start bit */
data_lo();
@@ -80,7 +84,7 @@ uint8_t ps2_host_send(uint8_t data)

/* Data bit */
for (uint8_t i = 0; i < 8; i++) {
_delay_us(15);
wait_us(15);
if (data&(1<<i)) {
parity = !parity;
data_hi();
@@ -92,13 +96,13 @@ uint8_t ps2_host_send(uint8_t data)
}

/* Parity bit */
_delay_us(15);
wait_us(15);
if (parity) { data_hi(); } else { data_lo(); }
WAIT(clock_hi, 50, 4);
WAIT(clock_lo, 50, 5);

/* Stop bit */
_delay_us(15);
wait_us(15);
data_hi();

/* Ack */

+ 15
- 0
protocol/ps2_io.h View File

@@ -0,0 +1,15 @@
#ifndef PS2_IO_H
#define PS2_IO_H


void clock_init(void);
void clock_lo(void);
void clock_hi(void);
bool clock_in(void);

void data_init(void);
void data_lo(void);
void data_hi(void);
bool data_in(void);

#endif

+ 74
- 0
protocol/ps2_io_avr.c View File

@@ -0,0 +1,74 @@
#include <stdbool.h>
#include <util/delay.h>

/* Check port settings for clock and data line */
#if !(defined(PS2_CLOCK_PORT) && \
defined(PS2_CLOCK_PIN) && \
defined(PS2_CLOCK_DDR) && \
defined(PS2_CLOCK_BIT))
# error "PS/2 clock port setting is required in config.h"
#endif

#if !(defined(PS2_DATA_PORT) && \
defined(PS2_DATA_PIN) && \
defined(PS2_DATA_DDR) && \
defined(PS2_DATA_BIT))
# error "PS/2 data port setting is required in config.h"
#endif


/*
* Clock
*/
void clock_init(void)
{
}

void clock_lo(void)
{
PS2_CLOCK_PORT &= ~(1<<PS2_CLOCK_BIT);
PS2_CLOCK_DDR |= (1<<PS2_CLOCK_BIT);
}

void clock_hi(void)
{
/* input with pull up */
PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT);
PS2_CLOCK_PORT |= (1<<PS2_CLOCK_BIT);
}

bool clock_in(void)
{
PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT);
PS2_CLOCK_PORT |= (1<<PS2_CLOCK_BIT);
_delay_us(1);
return PS2_CLOCK_PIN&(1<<PS2_CLOCK_BIT);
}

/*
* Data
*/
void data_init(void)
{
}

void data_lo(void)
{
PS2_DATA_PORT &= ~(1<<PS2_DATA_BIT);
PS2_DATA_DDR |= (1<<PS2_DATA_BIT);
}

void data_hi(void)
{
/* input with pull up */
PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT);
PS2_DATA_PORT |= (1<<PS2_DATA_BIT);
}

bool data_in(void)
{
PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT);
PS2_DATA_PORT |= (1<<PS2_DATA_BIT);
_delay_us(1);
return PS2_DATA_PIN&(1<<PS2_DATA_BIT);
}

+ 60
- 0
protocol/ps2_io_mbed.c View File

@@ -0,0 +1,60 @@
#include <stdbool.h>
#include "ps2_io.h"
#include "gpio_api.h"


static gpio_t clock;
static gpio_t data;

/*
* Clock
*/
void clock_init(void)
{
gpio_init(&clock, P0_9);
gpio_mode(&clock, OpenDrain|PullNone);
}

void clock_lo(void)
{
gpio_dir(&clock, PIN_OUTPUT);
gpio_write(&clock, 0);
}
void clock_hi(void)
{
gpio_dir(&clock, PIN_OUTPUT);
gpio_write(&clock, 1);
}

bool clock_in(void)
{
gpio_dir(&clock, PIN_INPUT);
return gpio_read(&clock);
}

/*
* Data
*/
void data_init(void)
{
gpio_init(&data, P0_8);
gpio_mode(&data, OpenDrain|PullNone);
}

void data_lo(void)
{
gpio_dir(&data, PIN_OUTPUT);
gpio_write(&data, 0);
}

void data_hi(void)
{
gpio_dir(&data, PIN_OUTPUT);
gpio_write(&data, 1);
}

bool data_in(void)
{
gpio_dir(&data, PIN_INPUT);
return gpio_read(&data);
}

+ 21
- 21
tool/mbed/common.mk View File

@@ -1,21 +1,21 @@
COMMON_DIR = common
OBJECTS += \
$(OBJDIR)/$(COMMON_DIR)/action.o \
$(OBJDIR)/$(COMMON_DIR)/action_tapping.o \
$(OBJDIR)/$(COMMON_DIR)/action_macro.o \
$(OBJDIR)/$(COMMON_DIR)/action_layer.o \
$(OBJDIR)/$(COMMON_DIR)/action_util.o \
$(OBJDIR)/$(COMMON_DIR)/host.o \
$(OBJDIR)/$(COMMON_DIR)/keymap.o \
$(OBJDIR)/$(COMMON_DIR)/keyboard.o \
$(OBJDIR)/$(COMMON_DIR)/util.o \
$(OBJDIR)/$(COMMON_DIR)/mbed/suspend.o \
$(OBJDIR)/$(COMMON_DIR)/mbed/timer.o \
$(OBJDIR)/$(COMMON_DIR)/mbed/xprintf.o \
$(OBJDIR)/$(COMMON_DIR)/mbed/bootloader.o \
$(OBJDIR)/common/action.o \
$(OBJDIR)/common/action_tapping.o \
$(OBJDIR)/common/action_macro.o \
$(OBJDIR)/common/action_layer.o \
$(OBJDIR)/common/action_util.o \
$(OBJDIR)/common/host.o \
$(OBJDIR)/common/keymap.o \
$(OBJDIR)/common/keyboard.o \
$(OBJDIR)/common/util.o \
$(OBJDIR)/common/mbed/suspend.o \
$(OBJDIR)/common/mbed/timer.o \
$(OBJDIR)/common/mbed/xprintf.o \
$(OBJDIR)/common/mbed/bootloader.o \

INCLUDE_PATHS += \
-I$(TMK_DIR)/$(COMMON_DIR)
-I$(TMK_DIR)/common \
-I$(TMK_DIR)/protocol

CC_FLAGS += -include $(CONFIG_H)

@@ -24,13 +24,13 @@ CC_FLAGS += -include $(CONFIG_H)
# Option modules
ifdef BOOTMAGIC_ENABLE
$(error Not Supported)
OBJECTS += $(OBJDIR)/$(COMMON_DIR)/bootmagic.o
OBJECTS += $(OBJDIR)/$(COMMON_DIR)/mbed/eeprom.o
OBJECTS += $(OBJDIR)/common/bootmagic.o
OBJECTS += $(OBJDIR)/common/mbed/eeprom.o
OPT_DEFS += -DBOOTMAGIC_ENABLE
endif

ifdef MOUSEKEY_ENABLE
OBJECTS += $(OBJDIR)/$(COMMON_DIR)/mousekey.o
OBJECTS += $(OBJDIR)/common/mousekey.o
OPT_DEFS += -DMOUSEKEY_ENABLE
OPT_DEFS += -DMOUSE_ENABLE
endif
@@ -50,7 +50,7 @@ endif

ifdef COMMAND_ENABLE
$(error Not Supported)
SRC += $(COMMON_DIR)/command.c
SRC += common/command.c
OPT_DEFS += -DCOMMAND_ENABLE
endif

@@ -61,14 +61,14 @@ endif

ifdef SLEEP_LED_ENABLE
$(error Not Supported)
SRC += $(COMMON_DIR)/sleep_led.c
SRC += common/sleep_led.c
OPT_DEFS += -DSLEEP_LED_ENABLE
OPT_DEFS += -DNO_SUSPEND_POWER_DOWN
endif

ifdef BACKLIGHT_ENABLE
$(error Not Supported)
SRC += $(COMMON_DIR)/backlight.c
SRC += common/backlight.c
OPT_DEFS += -DBACKLIGHT_ENABLE
endif