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qmk_firmware/quantum/matrix.c

413 lines
11 KiB

9 years ago
/*
Copyright 2012-2017 Jun Wako, Jack Humbert
9 years ago
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <stdbool.h>
Add ChibiOS support for QMK (#465) * Modularity and gcc warnings fixes. * Add ChibiOS support (USB stack + support files). * Make usb_main more USB_DRIVER #define independent. * Move chibios to tool. * Implement jump-to-bootloader. * Small updates. * Fix bootloader-jump compiling. * Move AVR specific sleep_led.c into avr. * Add basic sleep_led for chibios. * Update chibios README. * NKRO fixes. * Rename some Makefile defines. * Move STM32 bootloader address config to separate .h file. * Add ARM Teensies bootloader code. * Fix chibios/usb_main GET_REPORT handing. * Add missing #include to keymap.c. * Make bootmagic.c code portable (_delay_ms -> wait_ms). * Move declaration of keymap_config. Should really not declare variables in .h files - since it's included in different .c files, a proper linker then complains that the same variable is declared more than once (once for each .c file that the offending .h is included in). * Add eeprom support for chibios/kinetis. * Rename chibios example keyboard. * Move chibios/cortex selection to local Makefiles. * Chibios: use WFI in idle. WIP suspend stuff. * ChibiOS/kinetis: sending remote wakeup. * ChibiOS/STM32: send remote wakeup. * Fix report size of boot protocol. * Fix drop key stroke Keyboard report should be checked if its transfer finishs successfully. Otherwise key stroke can be missing when other key event occurs before the last report transfer is done. Boot protocol 10ms interval probably causes this problem in case it receives key events in a row within the period. NKRO protocol suffers less or nothing due to its interval 1ms. * Chibios/usb_main: rename a variable for clarity. * Add correct chibios/bootloader_jump for infinity KB. * ChibiOS: make reset request more CMSISy. * Chibios: Add breathing sleep LED on Kinetis MCUs. * ChibiOS: Update infinity bootloader code to match updated ChibiOS. * ChibiOS: prettify/document sleep_led code. * Chibios: Remove the wait in the main loop. * Add maple mini code. * Do timeout when writing to CONSOLE EP queue. Fixes TMK bug #266. * Chibios: add 'core/protocol' to the makefiles' search path. * Chibios: Update to new USB API. * Chibios: add more guards for transmitting (fix a deadlock bug). * Add update for chibios in README * Chibios: Fix a HardFault bug (wait after start). * Chibios: cleanup usb_main code. * Chibios: Revert common.mk change (fix AVR linking problem). * core: Fix chibios user compile options Compile options can be defined in project Makefile such as UDEFS, UADEFS, UINCDIR, ULIBDIR and ULIBS. * Sysv format for ChibiOS arm-none-eabi-size Some new patches to ChibiOS puts heap as it's own section. So the berkeley format is now useless, as the heap will be included in the BSS report. The sysv format displays the bss size correctly. * Fix hard-coded path of CHIBIOS * Add support for new version of ChibiOS and Contrib The Kinetis support has moved to a separate Contrib repository in the newest version of Chibios. There has also been some structure changes. So this adds support for those, while maintaining back- wards compability. * Update ChibiOS instructions * Chibios: implement sleep LED for STM32. * Chibios: Update the main chibios README. * Chibios: fix STM32_BOOTLOADER_ADDRESS name. * Chibios: make the default bootloader_jump redefinable (weak). * Chibios: disable LTO (link-time optimisation). With LTO enabled, sometimes things fail for mysterious reasons (e.g. bootloader jump on WF with LEDs enabled), just because the linker optimisation is too aggressive. * Chibios: add default location for chibios-contrib. * ChibiOS: update mk to match chibios/master. * ChibiOS: update instructions.md. * Add chibi_onekey example. * Add comments to chibi_onekey Makefile. * Rename some Makefile defines. * Move STM32 bootloader address config to separate .h file. * Rename chibios example keyboard. * Move chibios/cortex selection to local Makefiles. * Add Teensy LC onekey example. * Chibios: use WFI in idle. WIP suspend stuff. * Update chibi/teensy instructions. * Update chibios/Teensy instructions. * Add infinity_chibios * Add keymap_hasu.c * Infinity_chibios: select correct bootloader_jump. * Infinity_chibios: improve comments. * Add generic STM32F103C8T6 example. * Add maple mini code. * STM32F103x fixes. * Add maple mini pinout pic. * Chibios: updates for 3.0.4 git. * Chibios: rename example stm32_onekey -> stm32_f072_onekey. * Chibios: add makefiles for Teensy 3.x examples. * Chibios: update Teensy 3.x instructions. * Chibios: Tsy LC is cortex-m0plus. * Chibios: add more guards for transmitting (fix a deadlock bug). * Change README for chibios * Chibios: update examples to current chibios git. Match the changes in mainline chibios: - update chconf.h - update supplied ld scripts structure - update Teensy instructions (switch to official chibios and introduce contrib) * Add ChibiOS and ChibiOS-Contrib submodules Also fix the makefile path for them. * Moves chibios keyboards to keyboards folder * First version of ChibiOS compilation Only the stm32_f072_onkey keyboard is ported at the moment. It compiles, but still doesn't link. * More chibios fixes It now compiles without warnings and links * Move the teensy_lc_onekey to the keyboards folder * Clean up the make file rule structure * Remove keymap_fn_to_action * Update more ChibiOS keyboards to QMK Most of them does not compile at the moment though. * Use older version of Chibios libraries The newest ones have problems with compilation * Remove USB_UNCONFIGURED event It isn't present in the older version of ChibiOS * Fix the infinity_chibios compilation * Fix potentially uninitialized variable * Add missing include * Fix the ChibiOS makefile * Fix some Chibios keyboard compilation * Revert the rules.mk file back to master version * Combine the chibios and AVR makefiles With just the required overrides in the respective platform specific one. * Slight makefile restrucuring Platform specific compiler options * Move avr specific targets out of the main rules * Fix ChibiOS objcopy The ChibiOS objcopy needs different parameters, so the parameters are moved to the corresponding platform rule file * Fix the objcopy for real this time The comands were moved around, so chibios used avr and the ohter way around. Also change the objsize output format * Fix the thumb flags * Fix the infinity hasu keymap * Per platform cpp flags * Add gcc-arm-none-eabi package to travis * Add arm-none-eabi-newlib to travis * Fix the name of the libnewlib-arm-none-eabi lib * Fix the ChibiOS paths So that they are properly relative, and builds don't generate extra folders * Fix the board path of stm32_f103_onekey * Only consider folders with Makefiles as subproject
8 years ago
#if defined(__AVR__)
9 years ago
#include <avr/io.h>
Add ChibiOS support for QMK (#465) * Modularity and gcc warnings fixes. * Add ChibiOS support (USB stack + support files). * Make usb_main more USB_DRIVER #define independent. * Move chibios to tool. * Implement jump-to-bootloader. * Small updates. * Fix bootloader-jump compiling. * Move AVR specific sleep_led.c into avr. * Add basic sleep_led for chibios. * Update chibios README. * NKRO fixes. * Rename some Makefile defines. * Move STM32 bootloader address config to separate .h file. * Add ARM Teensies bootloader code. * Fix chibios/usb_main GET_REPORT handing. * Add missing #include to keymap.c. * Make bootmagic.c code portable (_delay_ms -> wait_ms). * Move declaration of keymap_config. Should really not declare variables in .h files - since it's included in different .c files, a proper linker then complains that the same variable is declared more than once (once for each .c file that the offending .h is included in). * Add eeprom support for chibios/kinetis. * Rename chibios example keyboard. * Move chibios/cortex selection to local Makefiles. * Chibios: use WFI in idle. WIP suspend stuff. * ChibiOS/kinetis: sending remote wakeup. * ChibiOS/STM32: send remote wakeup. * Fix report size of boot protocol. * Fix drop key stroke Keyboard report should be checked if its transfer finishs successfully. Otherwise key stroke can be missing when other key event occurs before the last report transfer is done. Boot protocol 10ms interval probably causes this problem in case it receives key events in a row within the period. NKRO protocol suffers less or nothing due to its interval 1ms. * Chibios/usb_main: rename a variable for clarity. * Add correct chibios/bootloader_jump for infinity KB. * ChibiOS: make reset request more CMSISy. * Chibios: Add breathing sleep LED on Kinetis MCUs. * ChibiOS: Update infinity bootloader code to match updated ChibiOS. * ChibiOS: prettify/document sleep_led code. * Chibios: Remove the wait in the main loop. * Add maple mini code. * Do timeout when writing to CONSOLE EP queue. Fixes TMK bug #266. * Chibios: add 'core/protocol' to the makefiles' search path. * Chibios: Update to new USB API. * Chibios: add more guards for transmitting (fix a deadlock bug). * Add update for chibios in README * Chibios: Fix a HardFault bug (wait after start). * Chibios: cleanup usb_main code. * Chibios: Revert common.mk change (fix AVR linking problem). * core: Fix chibios user compile options Compile options can be defined in project Makefile such as UDEFS, UADEFS, UINCDIR, ULIBDIR and ULIBS. * Sysv format for ChibiOS arm-none-eabi-size Some new patches to ChibiOS puts heap as it's own section. So the berkeley format is now useless, as the heap will be included in the BSS report. The sysv format displays the bss size correctly. * Fix hard-coded path of CHIBIOS * Add support for new version of ChibiOS and Contrib The Kinetis support has moved to a separate Contrib repository in the newest version of Chibios. There has also been some structure changes. So this adds support for those, while maintaining back- wards compability. * Update ChibiOS instructions * Chibios: implement sleep LED for STM32. * Chibios: Update the main chibios README. * Chibios: fix STM32_BOOTLOADER_ADDRESS name. * Chibios: make the default bootloader_jump redefinable (weak). * Chibios: disable LTO (link-time optimisation). With LTO enabled, sometimes things fail for mysterious reasons (e.g. bootloader jump on WF with LEDs enabled), just because the linker optimisation is too aggressive. * Chibios: add default location for chibios-contrib. * ChibiOS: update mk to match chibios/master. * ChibiOS: update instructions.md. * Add chibi_onekey example. * Add comments to chibi_onekey Makefile. * Rename some Makefile defines. * Move STM32 bootloader address config to separate .h file. * Rename chibios example keyboard. * Move chibios/cortex selection to local Makefiles. * Add Teensy LC onekey example. * Chibios: use WFI in idle. WIP suspend stuff. * Update chibi/teensy instructions. * Update chibios/Teensy instructions. * Add infinity_chibios * Add keymap_hasu.c * Infinity_chibios: select correct bootloader_jump. * Infinity_chibios: improve comments. * Add generic STM32F103C8T6 example. * Add maple mini code. * STM32F103x fixes. * Add maple mini pinout pic. * Chibios: updates for 3.0.4 git. * Chibios: rename example stm32_onekey -> stm32_f072_onekey. * Chibios: add makefiles for Teensy 3.x examples. * Chibios: update Teensy 3.x instructions. * Chibios: Tsy LC is cortex-m0plus. * Chibios: add more guards for transmitting (fix a deadlock bug). * Change README for chibios * Chibios: update examples to current chibios git. Match the changes in mainline chibios: - update chconf.h - update supplied ld scripts structure - update Teensy instructions (switch to official chibios and introduce contrib) * Add ChibiOS and ChibiOS-Contrib submodules Also fix the makefile path for them. * Moves chibios keyboards to keyboards folder * First version of ChibiOS compilation Only the stm32_f072_onkey keyboard is ported at the moment. It compiles, but still doesn't link. * More chibios fixes It now compiles without warnings and links * Move the teensy_lc_onekey to the keyboards folder * Clean up the make file rule structure * Remove keymap_fn_to_action * Update more ChibiOS keyboards to QMK Most of them does not compile at the moment though. * Use older version of Chibios libraries The newest ones have problems with compilation * Remove USB_UNCONFIGURED event It isn't present in the older version of ChibiOS * Fix the infinity_chibios compilation * Fix potentially uninitialized variable * Add missing include * Fix the ChibiOS makefile * Fix some Chibios keyboard compilation * Revert the rules.mk file back to master version * Combine the chibios and AVR makefiles With just the required overrides in the respective platform specific one. * Slight makefile restrucuring Platform specific compiler options * Move avr specific targets out of the main rules * Fix ChibiOS objcopy The ChibiOS objcopy needs different parameters, so the parameters are moved to the corresponding platform rule file * Fix the objcopy for real this time The comands were moved around, so chibios used avr and the ohter way around. Also change the objsize output format * Fix the thumb flags * Fix the infinity hasu keymap * Per platform cpp flags * Add gcc-arm-none-eabi package to travis * Add arm-none-eabi-newlib to travis * Fix the name of the libnewlib-arm-none-eabi lib * Fix the ChibiOS paths So that they are properly relative, and builds don't generate extra folders * Fix the board path of stm32_f103_onekey * Only consider folders with Makefiles as subproject
8 years ago
#endif
#include "wait.h"
9 years ago
#include "print.h"
#include "debug.h"
#include "util.h"
#include "matrix.h"
#include "timer.h"
/* Set 0 if debouncing isn't needed */
#ifndef DEBOUNCING_DELAY
# define DEBOUNCING_DELAY 5
#endif
#if (DEBOUNCING_DELAY > 0)
static uint16_t debouncing_time;
static bool debouncing = false;
#endif
9 years ago
#if (MATRIX_COLS <= 8)
# define print_matrix_header() print("\nr/c 01234567\n")
# define print_matrix_row(row) print_bin_reverse8(matrix_get_row(row))
# define matrix_bitpop(i) bitpop(matrix[i])
# define ROW_SHIFTER ((uint8_t)1)
#elif (MATRIX_COLS <= 16)
# define print_matrix_header() print("\nr/c 0123456789ABCDEF\n")
# define print_matrix_row(row) print_bin_reverse16(matrix_get_row(row))
# define matrix_bitpop(i) bitpop16(matrix[i])
# define ROW_SHIFTER ((uint16_t)1)
#elif (MATRIX_COLS <= 32)
# define print_matrix_header() print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
# define print_matrix_row(row) print_bin_reverse32(matrix_get_row(row))
# define matrix_bitpop(i) bitpop32(matrix[i])
# define ROW_SHIFTER ((uint32_t)1)
#endif
#ifdef MATRIX_MASKED
extern const matrix_row_t matrix_mask[];
#endif
#if (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
#endif
/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
#if (DIODE_DIRECTION == COL2ROW)
static void init_cols(void);
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
static void unselect_rows(void);
static void select_row(uint8_t row);
static void unselect_row(uint8_t row);
#elif (DIODE_DIRECTION == ROW2COL)
static void init_rows(void);
static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
static void unselect_cols(void);
static void unselect_col(uint8_t col);
static void select_col(uint8_t col);
#endif
9 years ago
9 years ago
__attribute__ ((weak))
void matrix_init_quantum(void) {
matrix_init_kb();
}
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__attribute__ ((weak))
void matrix_scan_quantum(void) {
matrix_scan_kb();
}
__attribute__ ((weak))
void matrix_init_kb(void) {
matrix_init_user();
}
__attribute__ ((weak))
void matrix_scan_kb(void) {
matrix_scan_user();
}
__attribute__ ((weak))
void matrix_init_user(void) {
}
__attribute__ ((weak))
void matrix_scan_user(void) {
}
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inline
uint8_t matrix_rows(void) {
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return MATRIX_ROWS;
}
inline
uint8_t matrix_cols(void) {
9 years ago
return MATRIX_COLS;
}
Implements subprojects and updates projects for this (#459) * non-working commit * working * subprojects implemented for planck * pass a subproject variable through to c * consolidates clueboard revisions * thanks for letting me know about conflicts.. * turn off audio for yang's * corrects starting paths for subprojects * messing around with travis * semicolon * travis script * travis script * script for travis * correct directory (probably), amend files to commit * remove origin before adding * git pull, correct syntax * git checkout * git pull origin branch * where are we? * where are we? * merging * force things to happen * adds commit message, adds add * rebase, no commit message * rebase branch * idk! * try just pull * fetch - merge * specify repo branch * checkout * goddammit * merge? idk * pls * after all * don't split up keyboards * syntax * adds quick for all-keyboards * trying out new script * script update * lowercase * all keyboards * stop replacing compiled.hex automatically * adds if statement * skip automated build branches * forces push to automated build branch * throw an add in there * upstream? * adds AUTOGEN * ignore all .hex files again * testing out new repo * global ident * generate script, keyboard_keymap.hex * skip generation for now, print pandoc info, submodule update * try trusty * and sudo * try generate * updates subprojects to keyboards * no idea * updates to keyboards * cleans up clueboard stuff * setup to use local readme * updates cluepad, planck experimental * remove extra led.c [ci skip] * disable power up for now * config files updates * makefile updates * .h file updates, config tuning * disable audio for yang
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// void matrix_power_up(void) {
// #if (DIODE_DIRECTION == COL2ROW)
Implements subprojects and updates projects for this (#459) * non-working commit * working * subprojects implemented for planck * pass a subproject variable through to c * consolidates clueboard revisions * thanks for letting me know about conflicts.. * turn off audio for yang's * corrects starting paths for subprojects * messing around with travis * semicolon * travis script * travis script * script for travis * correct directory (probably), amend files to commit * remove origin before adding * git pull, correct syntax * git checkout * git pull origin branch * where are we? * where are we? * merging * force things to happen * adds commit message, adds add * rebase, no commit message * rebase branch * idk! * try just pull * fetch - merge * specify repo branch * checkout * goddammit * merge? idk * pls * after all * don't split up keyboards * syntax * adds quick for all-keyboards * trying out new script * script update * lowercase * all keyboards * stop replacing compiled.hex automatically * adds if statement * skip automated build branches * forces push to automated build branch * throw an add in there * upstream? * adds AUTOGEN * ignore all .hex files again * testing out new repo * global ident * generate script, keyboard_keymap.hex * skip generation for now, print pandoc info, submodule update * try trusty * and sudo * try generate * updates subprojects to keyboards * no idea * updates to keyboards * cleans up clueboard stuff * setup to use local readme * updates cluepad, planck experimental * remove extra led.c [ci skip] * disable power up for now * config files updates * makefile updates * .h file updates, config tuning * disable audio for yang
8 years ago
// for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
// /* DDRxn */
// _SFR_IO8((row_pins[r] >> 4) + 1) |= _BV(row_pins[r] & 0xF);
// toggle_row(r);
// }
// for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
// /* PORTxn */
// _SFR_IO8((col_pins[c] >> 4) + 2) |= _BV(col_pins[c] & 0xF);
// }
// #elif (DIODE_DIRECTION == ROW2COL)
Implements subprojects and updates projects for this (#459) * non-working commit * working * subprojects implemented for planck * pass a subproject variable through to c * consolidates clueboard revisions * thanks for letting me know about conflicts.. * turn off audio for yang's * corrects starting paths for subprojects * messing around with travis * semicolon * travis script * travis script * script for travis * correct directory (probably), amend files to commit * remove origin before adding * git pull, correct syntax * git checkout * git pull origin branch * where are we? * where are we? * merging * force things to happen * adds commit message, adds add * rebase, no commit message * rebase branch * idk! * try just pull * fetch - merge * specify repo branch * checkout * goddammit * merge? idk * pls * after all * don't split up keyboards * syntax * adds quick for all-keyboards * trying out new script * script update * lowercase * all keyboards * stop replacing compiled.hex automatically * adds if statement * skip automated build branches * forces push to automated build branch * throw an add in there * upstream? * adds AUTOGEN * ignore all .hex files again * testing out new repo * global ident * generate script, keyboard_keymap.hex * skip generation for now, print pandoc info, submodule update * try trusty * and sudo * try generate * updates subprojects to keyboards * no idea * updates to keyboards * cleans up clueboard stuff * setup to use local readme * updates cluepad, planck experimental * remove extra led.c [ci skip] * disable power up for now * config files updates * makefile updates * .h file updates, config tuning * disable audio for yang
8 years ago
// for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
// /* DDRxn */
// _SFR_IO8((col_pins[c] >> 4) + 1) |= _BV(col_pins[c] & 0xF);
// toggle_col(c);
// }
// for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
// /* PORTxn */
// _SFR_IO8((row_pins[r] >> 4) + 2) |= _BV(row_pins[r] & 0xF);
// }
// #endif
// }
void matrix_init(void) {
// To use PORTF disable JTAG with writing JTD bit twice within four cycles.
#if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) || defined(__AVR_ATmega32U4__))
MCUCR |= _BV(JTD);
MCUCR |= _BV(JTD);
#endif
// initialize row and col
#if (DIODE_DIRECTION == COL2ROW)
unselect_rows();
init_cols();
#elif (DIODE_DIRECTION == ROW2COL)
unselect_cols();
init_rows();
#endif
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
matrix_debouncing[i] = 0;
}
matrix_init_quantum();
9 years ago
}
uint8_t matrix_scan(void)
{
#if (DIODE_DIRECTION == COL2ROW)
// Set row, read cols
for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
# if (DEBOUNCING_DELAY > 0)
bool matrix_changed = read_cols_on_row(matrix_debouncing, current_row);
9 years ago
if (matrix_changed) {
debouncing = true;
debouncing_time = timer_read();
}
# else
read_cols_on_row(matrix, current_row);
# endif
}
#elif (DIODE_DIRECTION == ROW2COL)
// Set col, read rows
for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
# if (DEBOUNCING_DELAY > 0)
bool matrix_changed = read_rows_on_col(matrix_debouncing, current_col);
if (matrix_changed) {
debouncing = true;
debouncing_time = timer_read();
}
# else
read_rows_on_col(matrix, current_col);
# endif
}
#endif
# if (DEBOUNCING_DELAY > 0)
if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = matrix_debouncing[i];
}
debouncing = false;
}
# endif
matrix_scan_quantum();
return 1;
9 years ago
}
bool matrix_is_modified(void)
{
#if (DEBOUNCING_DELAY > 0)
if (debouncing) return false;
#endif
return true;
}
inline
bool matrix_is_on(uint8_t row, uint8_t col)
{
return (matrix[row] & ((matrix_row_t)1<col));
}
inline
matrix_row_t matrix_get_row(uint8_t row)
{
// Matrix mask lets you disable switches in the returned matrix data. For example, if you have a
// switch blocker installed and the switch is always pressed.
#ifdef MATRIX_MASKED
return matrix[row] & matrix_mask[row];
#else
return matrix[row];
#endif
}
void matrix_print(void)
{
print_matrix_header();
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
phex(row); print(": ");
print_matrix_row(row);
print("\n");
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}
}
uint8_t matrix_key_count(void)
{
uint8_t count = 0;
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
count += matrix_bitpop(i);
}
return count;
}
#if (DIODE_DIRECTION == COL2ROW)
static void init_cols(void)
{
for(uint8_t x = 0; x < MATRIX_COLS; x++) {
uint8_t pin = col_pins[x];
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
}
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}
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
{
// Store last value of row prior to reading
matrix_row_t last_row_value = current_matrix[current_row];
// Clear data in matrix row
current_matrix[current_row] = 0;
// Select row and wait for row selecton to stabilize
select_row(current_row);
wait_us(30);
// For each col...
for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
// Select the col pin to read (active low)
uint8_t pin = col_pins[col_index];
uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
// Populate the matrix row with the state of the col pin
current_matrix[current_row] |= pin_state ? 0 : (ROW_SHIFTER << col_index);
}
// Unselect row
unselect_row(current_row);
return (last_row_value != current_matrix[current_row]);
9 years ago
}
static void select_row(uint8_t row)
{
uint8_t pin = row_pins[row];
_SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT
_SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
}
static void unselect_row(uint8_t row)
{
uint8_t pin = row_pins[row];
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
}
static void unselect_rows(void)
{
for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
uint8_t pin = row_pins[x];
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
}
}
#elif (DIODE_DIRECTION == ROW2COL)
static void init_rows(void)
{
for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
uint8_t pin = row_pins[x];
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
}
}
static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
{
bool matrix_changed = false;
// Select col and wait for col selecton to stabilize
select_col(current_col);
wait_us(30);
// For each row...
for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++)
{
// Store last value of row prior to reading
matrix_row_t last_row_value = current_matrix[row_index];
// Check row pin state
if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
{
// Pin LO, set col bit
current_matrix[row_index] |= (ROW_SHIFTER << current_col);
}
else
{
// Pin HI, clear col bit
current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
}
// Determine if the matrix changed state
if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
{
matrix_changed = true;
}
}
// Unselect col
unselect_col(current_col);
return matrix_changed;
}
static void select_col(uint8_t col)
{
uint8_t pin = col_pins[col];
_SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT
_SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
}
static void unselect_col(uint8_t col)
{
uint8_t pin = col_pins[col];
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
}
static void unselect_cols(void)
{
for(uint8_t x = 0; x < MATRIX_COLS; x++) {
uint8_t pin = col_pins[x];
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
}
}
#endif