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Merge branch 'ibm4704_ext'

Browse Source
pull/33/head
Jun Wako 10 years ago
parent 799993c414 e98b800723
commit c2485ebac5
6 changed files with 190 additions and 109 deletions
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23
converter/ibm4704_usb/config.h
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@ -41,9 +41,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
/*
* Busywait
*/
/* Pin configuration */
#define IBM4704_CLOCK_PORT PORTD
#define IBM4704_CLOCK_PIN PIND
#define IBM4704_CLOCK_DDR DDRD
@ -53,22 +51,11 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define IBM4704_DATA_DDR DDRD
#define IBM4704_DATA_BIT 0
/*
* Pin interrupt
*/
#ifdef IBM4704_USE_INT
#define IBM4704_INT_INIT() do { \
EICRA |= ((1<<ISC11) | \
(0<<ISC10)); \
} while (0)
#define IBM4704_INT_ON() do { \
EIMSK |= (1<<INT1); \
} while (0)
#define IBM4704_INT_OFF() do { \
EIMSK &= ~(1<<INT1); \
} while (0)
/* Pin interrupt on rising edge */
#define IBM4704_INT_INIT() do { EICRA |= ((1<<ISC11)|(0<<ISC10)); } while (0)
#define IBM4704_INT_ON() do { EIMSK |= (1<<INT1); } while (0)
#define IBM4704_INT_OFF() do { EIMSK &= ~(1<<INT1); } while (0)
#define IBM4704_INT_VECT INT1_vect
#endif
#endif

2
converter/ibm4704_usb/ibm4704.txt
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@ -33,7 +33,7 @@ so that it doesn't send any scancode until you send 'FF'(End of FC command mode)
Model 100 50-key A2h
Model 200 62-key A3h
Model 300 77-key A4h
Model 400 107-key ??
Model 400 107-key A5h
Japanese/Chinese 102-key A6h

47
converter/ibm4704_usb/keymap_common.h
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@ -34,7 +34,42 @@ extern const uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS];
extern const uint16_t fn_actions[];
/* Original keys */
/* 77, 107-key From Ellipse@Deskthority
* http://deskthority.net/workshop-f7/tmk-keyboard-firmware-collection-t4478-90.html#p190550
* 77-key
K00,K18,K19,K1A,K10,K11,K12,K08,K09,K0A,K0F,K1F,K0D,K0C,K0E, K44,K45,K46, \
K04,K05,K06,K13,K14,K15,K16,K17,K01,K02,K03,K1B,K1C,K1D, K54,K55,K56, \
K20,K21,K22,K23,K24,K25,K26,K27,K28,K29,K2A,K2B,K2C,K2D, K64,K65,K66, \
K30,K3E,K32,K33,K34,K35,K36,K37,K38,K39,K3A,K3B,K3C,K3D, K74,K75,K76, \
K31,K41,K3F, K40, K42,K2F, K77,K67,K71 \
* 107-key
K00,K18, K19,K1A,K10,K11,K12,K08,K09,K0A,K0F,K1F,K0D,K0C,K0E,K46,K64, NO, K6B,K6C, K47,K48,K49,K4A, \
K04,K05, K06,K13,K14,K15,K16,K17,K01,K02,K03,K1B,K1C,K1D,K56,K66, K6D,K6E,K6F, K4B,K4C,K4D,K4E, \
K20,K21, K22,K23,K24,K25,K26,K27,K28,K29,K2A,K2B,K2C,K2D,K71,K77, K70,K65,K72, K50,K51,K52,K53, \
K30, K3E,K32,K33,K34,K35,K36,K37,K38,K39,K3A,K3B,K3C,K3D,K44, K74,K75,K76, K5E,K58,K59,K5A, \
K31,K41, K3F,K40,K42, K2F, K54,K55, K78,K67,K79, K5B,K5C,K5D,K57 \
* IBM4704 scancode 00-79h
{ KC_##K00, KC_##K01, KC_##K02, KC_##K03, KC_##K04, KC_##K05, KC_##K06, KC_NO }, \
{ KC_##K08, KC_##K09, KC_##K0A, KC_NO, KC_##K0C, KC_##K0D, KC_##K0E, KC_##K0F }, \
{ KC_##K10, KC_##K11, KC_##K12, KC_##K13, KC_##K14, KC_##K15, KC_##K16, KC_##K17 }, \
{ KC_##K18, KC_##K19, KC_##K1A, KC_##K1B, KC_##K1C, KC_##K1D, KC_NO, KC_##K1F }, \
{ KC_##K20, KC_##K21, KC_##K22, KC_##K23, KC_##K24, KC_##K25, KC_##K26, KC_##K27 }, \
{ KC_##K28, KC_##K29, KC_##K2A, KC_##K2B, KC_##K2C, KC_##K2D, KC_NO, KC_##K2F }, \
{ KC_##K30, KC_##K31, KC_##K32, KC_##K33, KC_##K34, KC_##K35, KC_##K36, KC_##K37 }, \
{ KC_##K38, KC_##K39, KC_##K3A, KC_##K3B, KC_##K3C, KC_##K3D, KC_##K3E, KC_##K3F }, \
{ KC_##K40, KC_##K41, KC_##K42, KC_NO, KC_##K44, KC_NO, KC_##K46, KC_##K47 }, \
{ KC_##K48, KC_##K49, KC_##K4A, KC_##K4B, KC_##K4C, KC_##K4D, KC_##K4E, KC_NO }, \
{ KC_##K50, KC_##K51, KC_##K52, KC_##K53, KC_##K54, KC_##K55, KC_##K56, KC_##K57 }, \
{ KC_##K58, KC_##K59, KC_##K5A, KC_##K5B, KC_##K5C, KC_##K5D, KC_##K5E, KC_NO }, \
{ KC_NO, KC_NO, KC_NO, KC_NO, KC_##K64, KC_##K65, KC_##K66, KC_##K67 }, \
{ KC_NO, KC_NO, KC_NO, KC_##K6B, KC_##K6C, KC_##K6D, KC_##K6E, KC_##K6F }, \
{ KC_##K70, KC_##K71, KC_##K72, KC_NO, KC_##K74, KC_##K75, KC_##K76, KC_##K77 }, \
{ KC_##K78, KC_##K79, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO },
*/
/* 62-key */
#define KEYMAP( \
K00,K18,K19,K1A,K10,K11,K12,K08,K09,K0A,K0F,K1F,K0D,K0C,K0E, \
K04,K05,K06,K13,K14,K15,K16,K17,K01,K02,K03,K1B,K1C,K1D, \
@ -61,13 +96,3 @@ extern const uint16_t fn_actions[];
}
#endif
/*
{ K48, K49, K4A, K4B, K4C, K4D, K4E, K4F }, \
{ K50, K51, K52, K53, K54, K55, K56, K57 }, \
{ K58, K59, K5A, K5B, K5C, K5D, K5E, K5F }, \
{ K60, K61, K62, K63, K64, K65, K66, K67 }, \
{ K68, K69, K6A, K6B, K6C, K6D, K6E, K6F }, \
{ K70, K71, K72, K73, K74, K75, K76, K77 }, \
{ K78, K79, K7A, K7B, K7C, K7D, K7E, K7F }, \
*/

39
converter/ibm4704_usb/matrix.c
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@ -69,41 +69,34 @@ static void enable_break(void)
{
uint8_t ret;
print("Enable break: ");
// valid scancode: 00-77h
for (uint8_t code = 0; code < 0x78; code++) {
while (ibm4704_send(0x80|code) != 0) {
print("z");
_delay_us(500);
}
_delay_us(2000);
ret = ibm4704_recv();
if (ret != 0xff) {
// valid scancode: 00-79h
for (uint8_t code = 0; code < 0x7A; code++) {
while (ibm4704_send(0x80|code)) _delay_ms(1);
// get none when ok, get FD when out of bound
_delay_ms(5);
if ((ret = ibm4704_recv()) != 0xff) {
xprintf("c%02X:r%02X ", code, ret);
}
_delay_us(1000);
_delay_ms(1);
}
_delay_us(1000);
while (ibm4704_send(0xFF) != 0) { _delay_us(500); } // End
while (ibm4704_send(0xFF)) { _delay_ms(1); } // End
print("End\n");
}
void matrix_init(void)
{
uint8_t ret;
debug_enable = true;
ibm4704_init();
matrix_clear();
// read keyboard id
while ((ret = ibm4704_recv()) == 0xFF) {
ibm4704_send(0xFE);
_delay_us(100);
}
_delay_ms(2000); // wait for starting up debug console
_delay_ms(2000); // wait for starting up debug console
print("IBM 4704 converter\n");
xprintf("Keyboard ID: %02X\n", ret);
while (ibm4704_send(0xFE)) _delay_ms(1); // resend
_delay_ms(5);
xprintf("Keyboard ID: %02X\n", ibm4704_recv());
enable_break();
}
@ -116,14 +109,16 @@ uint8_t matrix_scan(void)
if (code==0xFF) {
// Not receivd
return 0;
} else if ((code&0x78)==0x78) {
// 0xFF-F8 and 0x7F-78 is not scancode
xprintf("Error: %0X\n", code);
} else if ((code&0x7F) >= 0x7A) {
// 0xFF-FA and 0x7F-7A is not scancode
xprintf("Error: %02X\n", code);
matrix_clear();
return 0;
} else if (code&0x80) {
dprintf("%02X\n", code);
matrix_make(code);
} else {
dprintf("%02X\n", code);
matrix_break(code);
}
return 1;

135
tmk_core/protocol/ibm4704.c
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@ -4,6 +4,7 @@ Copyright 2010,2011,2012,2013 Jun WAKO <wakojun@gmail.com>
#include <stdbool.h>
#include <util/delay.h>
#include "debug.h"
#include "ring_buffer.h"
#include "ibm4704.h"
@ -20,7 +21,9 @@ uint8_t ibm4704_error = 0;
void ibm4704_init(void)
{
inhibit();
IBM4704_INT_INIT();
IBM4704_INT_ON();
idle();
}
/*
@ -47,6 +50,8 @@ uint8_t ibm4704_send(uint8_t data)
bool parity = true; // odd parity
ibm4704_error = 0;
IBM4704_INT_OFF();
/* Request to send */
idle();
clock_lo();
@ -57,7 +62,6 @@ uint8_t ibm4704_send(uint8_t data)
/* Data bit */
for (uint8_t i = 0; i < 8; i++) {
WAIT(clock_hi, 100, 0x40+i);
//_delay_us(5);
if (data&(1<<i)) {
parity = !parity;
data_hi();
@ -79,28 +83,25 @@ uint8_t ibm4704_send(uint8_t data)
/* End */
WAIT(data_lo, 100, 0x36);
inhibit();
_delay_us(200); // wait to recover clock to hi
idle();
IBM4704_INT_ON();
return 0;
ERROR:
inhibit();
if (ibm4704_error >= 0x30) {
xprintf("x%02X ", ibm4704_error);
idle();
if (ibm4704_error > 0x30) {
xprintf("S:%02X ", ibm4704_error);
}
_delay_us(200); // wait to recover clock to hi
IBM4704_INT_ON();
return -1;
}
/* receive data when host want else inhibit communication */
/* wait forever to receive data */
uint8_t ibm4704_recv_response(void)
{
// 250 * 100us(wait start bit in ibm4704_recv)
uint8_t data = 0;
uint8_t try = 250;
do {
data = ibm4704_recv();
} while (try-- && ibm4704_error);
return data;
while (!rbuf_has_data()) {
_delay_ms(1);
}
return rbuf_dequeue();
}
/*
@ -121,49 +122,69 @@ Stop bit: Keyboard pulls down Data line to lo after 9th clock.
*/
uint8_t ibm4704_recv(void)
{
uint8_t data = 0;
bool parity = true; // odd parity
ibm4704_error = IBM4704_ERR_NONE;
idle();
_delay_us(5); // wait for line settles
/* start bit */
WAIT(clock_lo, 100, 0x11); // wait for keyboard to send
WAIT(data_hi, 100, 0x12); // can be delayed that long
WAIT(clock_hi, 100, 0x13); // first rising edge which can take longer
/* data */
for (uint8_t i = 0; i < 8; i++) {
WAIT(clock_hi, 100, 0x20+i);
//_delay_us(5);
if (data_in()) {
parity = !parity;
data |= (1<<i);
}
WAIT(clock_lo, 150, 0x28+i);
if (rbuf_has_data()) {
return rbuf_dequeue();
} else {
return -1;
}
}
/* parity */
WAIT(clock_hi, 100, 0x17);
if (data_in() != parity) {
ibm4704_error = IBM4704_ERR_PARITY;
goto ERROR;
}
WAIT(clock_lo, 150, 0x18);
/* stop bit */
WAIT(clock_hi, 100, 0x19);
WAIT(data_lo, 1, 0x19);
ISR(IBM4704_INT_VECT)
{
static enum {
INIT, START, BIT0, BIT1, BIT2, BIT3, BIT4, BIT5, BIT6, BIT7, PARITY,
} state = INIT;
// LSB first
static uint8_t data = 0;
// Odd parity
static uint8_t parity = false;
inhibit();
_delay_us(200); // wait to recover clock to hi
return data;
ERROR:
if (ibm4704_error > 0x12) {
xprintf("x%02X ", ibm4704_error);
ibm4704_error = 0;
// return unless falling edge
if (clock_in()) { goto RETURN; } // why this occurs?
state++;
switch (state) {
case START:
// Data:Low
WAIT(data_hi, 10, state);
break;
case BIT0:
case BIT1:
case BIT2:
case BIT3:
case BIT4:
case BIT5:
case BIT6:
case BIT7:
data >>= 1;
if (data_in()) {
data |= 0x80;
parity = !parity;
}
break;
case PARITY:
if (data_in()) {
parity = !parity;
}
if (!parity)
goto ERROR;
rbuf_enqueue(data);
ibm4704_error = IBM4704_ERR_NONE;
goto DONE;
break;
default:
goto ERROR;
}
inhibit();
_delay_us(200); // wait to recover clock to hi
return -1;
goto RETURN;
ERROR:
ibm4704_error = state;
while (ibm4704_send(0xFE)) _delay_ms(1); // resend
xprintf("R:%02X%02X\n", state, data);
DONE:
state = INIT;
data = 0;
parity = false;
RETURN:
return;
}

53
tmk_core/ring_buffer.h
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@ -0,0 +1,53 @@
#ifndef RING_BUFFER_H
#define RING_BUFFER_H
/*--------------------------------------------------------------------
* Ring buffer to store scan codes from keyboard
*------------------------------------------------------------------*/
#define RBUF_SIZE 32
static uint8_t rbuf[RBUF_SIZE];
static uint8_t rbuf_head = 0;
static uint8_t rbuf_tail = 0;
static inline void rbuf_enqueue(uint8_t data)
{
uint8_t sreg = SREG;
cli();
uint8_t next = (rbuf_head + 1) % RBUF_SIZE;
if (next != rbuf_tail) {
rbuf[rbuf_head] = data;
rbuf_head = next;
} else {
print("rbuf: full\n");
}
SREG = sreg;
}
static inline uint8_t rbuf_dequeue(void)
{
uint8_t val = 0;
uint8_t sreg = SREG;
cli();
if (rbuf_head != rbuf_tail) {
val = rbuf[rbuf_tail];
rbuf_tail = (rbuf_tail + 1) % RBUF_SIZE;
}
SREG = sreg;
return val;
}
static inline bool rbuf_has_data(void)
{
uint8_t sreg = SREG;
cli();
bool has_data = (rbuf_head != rbuf_tail);
SREG = sreg;
return has_data;
}
static inline void rbuf_clear(void)
{
uint8_t sreg = SREG;
cli();
rbuf_head = rbuf_tail = 0;
SREG = sreg;
}
#endif /* RING_BUFFER_H */
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