Merge branch 'ibm4704_ext'
This commit is contained in:
commit
c2485ebac5
6 changed files with 193 additions and 112 deletions
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@ -41,9 +41,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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/*
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* Busywait
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*/
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/* Pin configuration */
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#define IBM4704_CLOCK_PORT PORTD
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#define IBM4704_CLOCK_PIN PIND
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#define IBM4704_CLOCK_DDR DDRD
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@ -53,22 +51,11 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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#define IBM4704_DATA_DDR DDRD
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#define IBM4704_DATA_BIT 0
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/*
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* Pin interrupt
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*/
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#ifdef IBM4704_USE_INT
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#define IBM4704_INT_INIT() do { \
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EICRA |= ((1<<ISC11) | \
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(0<<ISC10)); \
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} while (0)
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#define IBM4704_INT_ON() do { \
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EIMSK |= (1<<INT1); \
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} while (0)
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#define IBM4704_INT_OFF() do { \
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EIMSK &= ~(1<<INT1); \
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} while (0)
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/* Pin interrupt on rising edge */
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#define IBM4704_INT_INIT() do { EICRA |= ((1<<ISC11)|(0<<ISC10)); } while (0)
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#define IBM4704_INT_ON() do { EIMSK |= (1<<INT1); } while (0)
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#define IBM4704_INT_OFF() do { EIMSK &= ~(1<<INT1); } while (0)
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#define IBM4704_INT_VECT INT1_vect
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#endif
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#endif
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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)
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Model 100 50-key A2h
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Model 200 62-key A3h
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Model 300 77-key A4h
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Model 400 107-key ??
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Model 400 107-key A5h
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Japanese/Chinese 102-key A6h
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@ -34,7 +34,42 @@ extern const uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS];
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extern const uint16_t fn_actions[];
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/* Original keys */
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/* 77, 107-key From Ellipse@Deskthority
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* http://deskthority.net/workshop-f7/tmk-keyboard-firmware-collection-t4478-90.html#p190550
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* 77-key
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K00,K18,K19,K1A,K10,K11,K12,K08,K09,K0A,K0F,K1F,K0D,K0C,K0E, K44,K45,K46, \
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K04,K05,K06,K13,K14,K15,K16,K17,K01,K02,K03,K1B,K1C,K1D, K54,K55,K56, \
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K20,K21,K22,K23,K24,K25,K26,K27,K28,K29,K2A,K2B,K2C,K2D, K64,K65,K66, \
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K30,K3E,K32,K33,K34,K35,K36,K37,K38,K39,K3A,K3B,K3C,K3D, K74,K75,K76, \
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K31,K41,K3F, K40, K42,K2F, K77,K67,K71 \
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* 107-key
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K00,K18, K19,K1A,K10,K11,K12,K08,K09,K0A,K0F,K1F,K0D,K0C,K0E,K46,K64, NO, K6B,K6C, K47,K48,K49,K4A, \
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K04,K05, K06,K13,K14,K15,K16,K17,K01,K02,K03,K1B,K1C,K1D,K56,K66, K6D,K6E,K6F, K4B,K4C,K4D,K4E, \
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K20,K21, K22,K23,K24,K25,K26,K27,K28,K29,K2A,K2B,K2C,K2D,K71,K77, K70,K65,K72, K50,K51,K52,K53, \
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K30, K3E,K32,K33,K34,K35,K36,K37,K38,K39,K3A,K3B,K3C,K3D,K44, K74,K75,K76, K5E,K58,K59,K5A, \
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K31,K41, K3F,K40,K42, K2F, K54,K55, K78,K67,K79, K5B,K5C,K5D,K57 \
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* IBM4704 scancode 00-79h
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{ KC_##K00, KC_##K01, KC_##K02, KC_##K03, KC_##K04, KC_##K05, KC_##K06, KC_NO }, \
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{ KC_##K08, KC_##K09, KC_##K0A, KC_NO, KC_##K0C, KC_##K0D, KC_##K0E, KC_##K0F }, \
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{ KC_##K10, KC_##K11, KC_##K12, KC_##K13, KC_##K14, KC_##K15, KC_##K16, KC_##K17 }, \
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{ KC_##K18, KC_##K19, KC_##K1A, KC_##K1B, KC_##K1C, KC_##K1D, KC_NO, KC_##K1F }, \
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{ KC_##K20, KC_##K21, KC_##K22, KC_##K23, KC_##K24, KC_##K25, KC_##K26, KC_##K27 }, \
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{ KC_##K28, KC_##K29, KC_##K2A, KC_##K2B, KC_##K2C, KC_##K2D, KC_NO, KC_##K2F }, \
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{ KC_##K30, KC_##K31, KC_##K32, KC_##K33, KC_##K34, KC_##K35, KC_##K36, KC_##K37 }, \
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{ KC_##K38, KC_##K39, KC_##K3A, KC_##K3B, KC_##K3C, KC_##K3D, KC_##K3E, KC_##K3F }, \
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{ KC_##K40, KC_##K41, KC_##K42, KC_NO, KC_##K44, KC_NO, KC_##K46, KC_##K47 }, \
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{ KC_##K48, KC_##K49, KC_##K4A, KC_##K4B, KC_##K4C, KC_##K4D, KC_##K4E, KC_NO }, \
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{ KC_##K50, KC_##K51, KC_##K52, KC_##K53, KC_##K54, KC_##K55, KC_##K56, KC_##K57 }, \
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{ KC_##K58, KC_##K59, KC_##K5A, KC_##K5B, KC_##K5C, KC_##K5D, KC_##K5E, KC_NO }, \
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{ KC_NO, KC_NO, KC_NO, KC_NO, KC_##K64, KC_##K65, KC_##K66, KC_##K67 }, \
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{ KC_NO, KC_NO, KC_NO, KC_##K6B, KC_##K6C, KC_##K6D, KC_##K6E, KC_##K6F }, \
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{ KC_##K70, KC_##K71, KC_##K72, KC_NO, KC_##K74, KC_##K75, KC_##K76, KC_##K77 }, \
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{ KC_##K78, KC_##K79, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO },
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*/
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/* 62-key */
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#define KEYMAP( \
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K00,K18,K19,K1A,K10,K11,K12,K08,K09,K0A,K0F,K1F,K0D,K0C,K0E, \
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K04,K05,K06,K13,K14,K15,K16,K17,K01,K02,K03,K1B,K1C,K1D, \
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@ -61,13 +96,3 @@ extern const uint16_t fn_actions[];
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}
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#endif
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/*
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{ K48, K49, K4A, K4B, K4C, K4D, K4E, K4F }, \
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{ K50, K51, K52, K53, K54, K55, K56, K57 }, \
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{ K58, K59, K5A, K5B, K5C, K5D, K5E, K5F }, \
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{ K60, K61, K62, K63, K64, K65, K66, K67 }, \
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{ K68, K69, K6A, K6B, K6C, K6D, K6E, K6F }, \
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{ K70, K71, K72, K73, K74, K75, K76, K77 }, \
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{ K78, K79, K7A, K7B, K7C, K7D, K7E, K7F }, \
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*/
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@ -69,41 +69,34 @@ static void enable_break(void)
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{
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uint8_t ret;
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print("Enable break: ");
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// valid scancode: 00-77h
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for (uint8_t code = 0; code < 0x78; code++) {
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while (ibm4704_send(0x80|code) != 0) {
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print("z");
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_delay_us(500);
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}
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_delay_us(2000);
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ret = ibm4704_recv();
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if (ret != 0xff) {
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// valid scancode: 00-79h
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for (uint8_t code = 0; code < 0x7A; code++) {
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while (ibm4704_send(0x80|code)) _delay_ms(1);
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// get none when ok, get FD when out of bound
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_delay_ms(5);
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if ((ret = ibm4704_recv()) != 0xff) {
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xprintf("c%02X:r%02X ", code, ret);
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}
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_delay_us(1000);
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_delay_ms(1);
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}
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_delay_us(1000);
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while (ibm4704_send(0xFF) != 0) { _delay_us(500); } // End
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while (ibm4704_send(0xFF)) { _delay_ms(1); } // End
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print("End\n");
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}
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void matrix_init(void)
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{
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uint8_t ret;
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debug_enable = true;
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ibm4704_init();
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matrix_clear();
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// read keyboard id
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while ((ret = ibm4704_recv()) == 0xFF) {
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ibm4704_send(0xFE);
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_delay_us(100);
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}
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_delay_ms(2000); // wait for starting up debug console
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_delay_ms(2000); // wait for starting up debug console
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print("IBM 4704 converter\n");
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xprintf("Keyboard ID: %02X\n", ret);
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while (ibm4704_send(0xFE)) _delay_ms(1); // resend
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_delay_ms(5);
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xprintf("Keyboard ID: %02X\n", ibm4704_recv());
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enable_break();
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}
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@ -116,14 +109,16 @@ uint8_t matrix_scan(void)
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if (code==0xFF) {
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// Not receivd
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return 0;
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} else if ((code&0x78)==0x78) {
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// 0xFF-F8 and 0x7F-78 is not scancode
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xprintf("Error: %0X\n", code);
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} else if ((code&0x7F) >= 0x7A) {
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// 0xFF-FA and 0x7F-7A is not scancode
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xprintf("Error: %02X\n", code);
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matrix_clear();
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return 0;
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} else if (code&0x80) {
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dprintf("%02X\n", code);
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matrix_make(code);
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} else {
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dprintf("%02X\n", code);
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matrix_break(code);
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}
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return 1;
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@ -4,6 +4,7 @@ Copyright 2010,2011,2012,2013 Jun WAKO <wakojun@gmail.com>
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#include <stdbool.h>
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#include <util/delay.h>
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#include "debug.h"
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#include "ring_buffer.h"
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#include "ibm4704.h"
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@ -20,7 +21,9 @@ uint8_t ibm4704_error = 0;
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void ibm4704_init(void)
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{
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inhibit();
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IBM4704_INT_INIT();
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IBM4704_INT_ON();
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idle();
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}
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/*
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@ -47,6 +50,8 @@ uint8_t ibm4704_send(uint8_t data)
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bool parity = true; // odd parity
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ibm4704_error = 0;
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IBM4704_INT_OFF();
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/* Request to send */
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idle();
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clock_lo();
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@ -57,7 +62,6 @@ uint8_t ibm4704_send(uint8_t data)
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/* Data bit */
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for (uint8_t i = 0; i < 8; i++) {
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WAIT(clock_hi, 100, 0x40+i);
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//_delay_us(5);
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if (data&(1<<i)) {
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parity = !parity;
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data_hi();
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@ -79,28 +83,25 @@ uint8_t ibm4704_send(uint8_t data)
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/* End */
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WAIT(data_lo, 100, 0x36);
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inhibit();
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_delay_us(200); // wait to recover clock to hi
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idle();
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IBM4704_INT_ON();
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return 0;
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ERROR:
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inhibit();
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if (ibm4704_error >= 0x30) {
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xprintf("x%02X ", ibm4704_error);
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idle();
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if (ibm4704_error > 0x30) {
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xprintf("S:%02X ", ibm4704_error);
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}
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_delay_us(200); // wait to recover clock to hi
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IBM4704_INT_ON();
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return -1;
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}
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/* receive data when host want else inhibit communication */
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/* wait forever to receive data */
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uint8_t ibm4704_recv_response(void)
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{
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// 250 * 100us(wait start bit in ibm4704_recv)
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uint8_t data = 0;
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uint8_t try = 250;
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do {
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data = ibm4704_recv();
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} while (try-- && ibm4704_error);
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return data;
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while (!rbuf_has_data()) {
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_delay_ms(1);
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}
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return rbuf_dequeue();
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}
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|
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/*
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|
@ -121,49 +122,69 @@ Stop bit: Keyboard pulls down Data line to lo after 9th clock.
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*/
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uint8_t ibm4704_recv(void)
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{
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uint8_t data = 0;
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bool parity = true; // odd parity
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ibm4704_error = IBM4704_ERR_NONE;
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idle();
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_delay_us(5); // wait for line settles
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/* start bit */
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WAIT(clock_lo, 100, 0x11); // wait for keyboard to send
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WAIT(data_hi, 100, 0x12); // can be delayed that long
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WAIT(clock_hi, 100, 0x13); // first rising edge which can take longer
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/* data */
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for (uint8_t i = 0; i < 8; i++) {
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WAIT(clock_hi, 100, 0x20+i);
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//_delay_us(5);
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if (data_in()) {
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parity = !parity;
|
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data |= (1<<i);
|
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}
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WAIT(clock_lo, 150, 0x28+i);
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if (rbuf_has_data()) {
|
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return rbuf_dequeue();
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} else {
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return -1;
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}
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/* parity */
|
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WAIT(clock_hi, 100, 0x17);
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if (data_in() != parity) {
|
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ibm4704_error = IBM4704_ERR_PARITY;
|
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goto ERROR;
|
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}
|
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WAIT(clock_lo, 150, 0x18);
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|
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/* stop bit */
|
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WAIT(clock_hi, 100, 0x19);
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WAIT(data_lo, 1, 0x19);
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inhibit();
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_delay_us(200); // wait to recover clock to hi
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return data;
|
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ERROR:
|
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if (ibm4704_error > 0x12) {
|
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xprintf("x%02X ", ibm4704_error);
|
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}
|
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inhibit();
|
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_delay_us(200); // wait to recover clock to hi
|
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return -1;
|
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}
|
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|
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ISR(IBM4704_INT_VECT)
|
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{
|
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static enum {
|
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INIT, START, BIT0, BIT1, BIT2, BIT3, BIT4, BIT5, BIT6, BIT7, PARITY,
|
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} state = INIT;
|
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// LSB first
|
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static uint8_t data = 0;
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// Odd parity
|
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static uint8_t parity = false;
|
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|
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ibm4704_error = 0;
|
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// return unless falling edge
|
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if (clock_in()) { goto RETURN; } // why this occurs?
|
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|
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state++;
|
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switch (state) {
|
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case START:
|
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// Data:Low
|
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WAIT(data_hi, 10, state);
|
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break;
|
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case BIT0:
|
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case BIT1:
|
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case BIT2:
|
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case BIT3:
|
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case BIT4:
|
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case BIT5:
|
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case BIT6:
|
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case BIT7:
|
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data >>= 1;
|
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if (data_in()) {
|
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data |= 0x80;
|
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parity = !parity;
|
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}
|
||||
break;
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case PARITY:
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if (data_in()) {
|
||||
parity = !parity;
|
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}
|
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if (!parity)
|
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goto ERROR;
|
||||
rbuf_enqueue(data);
|
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ibm4704_error = IBM4704_ERR_NONE;
|
||||
goto DONE;
|
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break;
|
||||
default:
|
||||
goto ERROR;
|
||||
}
|
||||
goto RETURN;
|
||||
ERROR:
|
||||
ibm4704_error = state;
|
||||
while (ibm4704_send(0xFE)) _delay_ms(1); // resend
|
||||
xprintf("R:%02X%02X\n", state, data);
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||||
DONE:
|
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state = INIT;
|
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data = 0;
|
||||
parity = false;
|
||||
RETURN:
|
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return;
|
||||
}
|
||||
|
|
53
tmk_core/ring_buffer.h
Normal file
53
tmk_core/ring_buffer.h
Normal file
|
@ -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 */
|
Loading…
Reference in a new issue