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qmk-firmware/tmk_core/protocol/arm_atsam/led_matrix.c

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/*
Copyright 2018 Massdrop Inc.
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 "arm_atsam_protocol.h"
#include "tmk_core/common/led.h"
#include <string.h>
void SERCOM1_0_Handler( void )
{
if (SERCOM1->I2CM.INTFLAG.bit.ERROR)
{
SERCOM1->I2CM.INTFLAG.reg = SERCOM_I2CM_INTENCLR_ERROR;
}
}
void DMAC_0_Handler( void )
{
if (DMAC->Channel[0].CHINTFLAG.bit.TCMPL)
{
DMAC->Channel[0].CHINTFLAG.reg = DMAC_CHINTENCLR_TCMPL;
i2c1_stop();
i2c_led_q_running = 0;
i2c_led_q_run();
return;
}
if (DMAC->Channel[0].CHINTFLAG.bit.TERR)
{
DMAC->Channel[0].CHINTFLAG.reg = DMAC_CHINTENCLR_TERR;
}
}
issi3733_driver_t issidrv[ISSI3733_DRIVER_COUNT];
issi3733_led_t led_map[ISSI3733_LED_COUNT+1] = ISSI3733_LED_MAP;
issi3733_led_t *lede = led_map + ISSI3733_LED_COUNT; //End pointer of mapping
uint8_t gcr_desired;
uint8_t gcr_breathe;
uint8_t gcr_use;
uint8_t gcr_actual;
uint8_t gcr_actual_last;
#define ACT_GCR_NONE 0
#define ACT_GCR_INC 1
#define ACT_GCR_DEC 2
#define LED_GCR_STEP_AUTO 2
static uint8_t gcr_min_counter;
static uint8_t v_5v_cat_hit;
//WARNING: Automatic GCR is in place to prevent USB shutdown and LED driver overloading
void gcr_compute(void)
{
uint8_t action = ACT_GCR_NONE;
if (led_animation_breathing)
gcr_use = gcr_breathe;
else
gcr_use = gcr_desired;
//If the 5v takes a catastrophic hit, disable the LED drivers briefly, assert auto gcr mode, min gcr and let the auto take over
if (v_5v < V5_CAT)
{
I2C3733_Control_Set(0);
//CDC_print("USB: WARNING: 5V catastrophic level reached! Disabling LED drivers!\r\n"); //Blocking print is bad here!
v_5v_cat_hit = 20; //~100ms recover
gcr_actual = 0; //Minimize GCR
usb_gcr_auto = 1; //Force auto mode enabled
return;
}
else if (v_5v_cat_hit > 1)
{
v_5v_cat_hit--;
return;
}
else if (v_5v_cat_hit == 1)
{
I2C3733_Control_Set(1);
CDC_print("USB: WARNING: Re-enabling LED drivers\r\n");
v_5v_cat_hit = 0;
return;
}
if (usb_gcr_auto)
{
if (v_5v_avg < V5_LOW) action = ACT_GCR_DEC;
else if (v_5v_avg > V5_HIGH && gcr_actual < gcr_use) action = ACT_GCR_INC;
else if (gcr_actual > gcr_use) action = ACT_GCR_DEC;
}
else
{
if (gcr_actual < gcr_use) action = ACT_GCR_INC;
else if (gcr_actual > gcr_use) action = ACT_GCR_DEC;
}
if (action == ACT_GCR_NONE)
{
gcr_min_counter = 0;
}
else if (action == ACT_GCR_INC)
{
if (LED_GCR_STEP_AUTO > LED_GCR_MAX - gcr_actual) gcr_actual = LED_GCR_MAX; //Obey max and prevent wrapping
else gcr_actual += LED_GCR_STEP_AUTO;
gcr_min_counter = 0;
}
else if (action == ACT_GCR_DEC)
{
if (LED_GCR_STEP_AUTO > gcr_actual) //Prevent wrapping
{
gcr_actual = 0;
//At this point, power can no longer be cut from the LED drivers, so focus on cutting out extra port if active
if (usb_extra_state != USB_EXTRA_STATE_DISABLED_UNTIL_REPLUG) //If not in a wait for replug state
{
if (usb_extra_state == USB_EXTRA_STATE_ENABLED) //If extra usb is enabled
{
gcr_min_counter++;
if (gcr_min_counter > 200) //5ms per check = 1s delay
{
USB_ExtraSetState(USB_EXTRA_STATE_DISABLED_UNTIL_REPLUG);
usb_extra_manual = 0; //Force disable manual mode of extra port
if (usb_extra_manual) CDC_print("USB: Disabling extra port until replug and manual mode toggle!\r\n");
else CDC_print("USB: Disabling extra port until replug!\r\n");
}
}
}
}
else
{
//Power successfully cut back from LED drivers
gcr_actual -= LED_GCR_STEP_AUTO;
gcr_min_counter = 0;
//If breathe mode is active, the top end can fluctuate if the host can not supply enough current
//So set the breathe GCR to where it becomes stable
if (led_animation_breathing == 1)
{
gcr_breathe = gcr_actual;
//PS: At this point, setting breathing to exhale makes a noticebly shorter cycle
// and the same would happen maybe one or two more times. Therefore I'm favoring
// powering through one full breathe and letting gcr settle completely
}
}
}
}
led_disp_t disp;
void issi3733_prepare_arrays(void)
{
memset(issidrv,0,sizeof(issi3733_driver_t) * ISSI3733_DRIVER_COUNT);
int i;
uint8_t addrs[ISSI3733_DRIVER_COUNT] = ISSI3773_DRIVER_ADDRESSES;
for (i=0;i<ISSI3733_DRIVER_COUNT;i++)
{
issidrv[i].addr = addrs[i];
}
issi3733_led_t *cur = led_map;
while (cur < lede)
{
//BYTE: 1 + (SW-1)*16 + (CS-1)
cur->rgb.g = issidrv[cur->adr.drv-1].pwm + 1 + ((cur->adr.swg-1)*16 + (cur->adr.cs-1));
cur->rgb.r = issidrv[cur->adr.drv-1].pwm + 1 + ((cur->adr.swr-1)*16 + (cur->adr.cs-1));
cur->rgb.b = issidrv[cur->adr.drv-1].pwm + 1 + ((cur->adr.swb-1)*16 + (cur->adr.cs-1));
//BYTE: 1 + (SW-1)*2 + (CS-1)/8
//BIT: (CS-1)%8
*(issidrv[cur->adr.drv-1].onoff + 1 + (cur->adr.swg-1)*2+(cur->adr.cs-1)/8) |= (1<<((cur->adr.cs-1)%8));
*(issidrv[cur->adr.drv-1].onoff + 1 + (cur->adr.swr-1)*2+(cur->adr.cs-1)/8) |= (1<<((cur->adr.cs-1)%8));
*(issidrv[cur->adr.drv-1].onoff + 1 + (cur->adr.swb-1)*2+(cur->adr.cs-1)/8) |= (1<<((cur->adr.cs-1)%8));
cur++;
}
}
void disp_calc_extents(void)
{
issi3733_led_t *cur = led_map;
disp.left = 1e10;
disp.right = -1e10;
disp.top = -1e10;
disp.bottom = 1e10;
while (cur < lede)
{
if (cur->x < disp.left) disp.left = cur->x;
if (cur->x > disp.right) disp.right = cur->x;
if (cur->y < disp.bottom) disp.bottom = cur->y;
if (cur->y > disp.top) disp.top = cur->y;
cur++;
}
disp.width = disp.right - disp.left;
disp.height = disp.top - disp.bottom;
}
void disp_pixel_setup(void)
{
issi3733_led_t *cur = led_map;
while (cur < lede)
{
cur->px = (cur->x - disp.left) / disp.width * 100;
cur->py = (cur->y - disp.bottom) / disp.height * 100;
*cur->rgb.r = 0;
*cur->rgb.g = 0;
*cur->rgb.b = 0;
cur++;
}
}
void led_matrix_prepare(void)
{
disp_calc_extents();
disp_pixel_setup();
}
uint8_t led_enabled;
float led_animation_speed;
uint8_t led_animation_direction;
uint8_t led_animation_orientation;
uint8_t led_animation_breathing;
uint8_t led_animation_breathe_cur;
uint8_t breathe_step;
uint8_t breathe_dir;
uint64_t led_next_run;
uint8_t led_animation_id;
uint8_t led_lighting_mode;
issi3733_led_t *led_cur;
uint8_t led_per_run = 15;
float breathe_mult;
__attribute__ ((weak))
void led_matrix_run(void)
{
float ro;
float go;
float bo;
float po;
uint8_t led_this_run = 0;
led_setup_t *f = (led_setup_t*)led_setups[led_animation_id];
if (led_cur == 0) //Denotes start of new processing cycle in the case of chunked processing
{
led_cur = led_map;
disp.frame += 1;
breathe_mult = 1;
if (led_animation_breathing)
{
led_animation_breathe_cur += breathe_step * breathe_dir;
if (led_animation_breathe_cur >= BREATHE_MAX_STEP)
breathe_dir = -1;
else if (led_animation_breathe_cur <= BREATHE_MIN_STEP)
breathe_dir = 1;
//Brightness curve created for 256 steps, 0 - ~98%
breathe_mult = 0.000015 * led_animation_breathe_cur * led_animation_breathe_cur;
if (breathe_mult > 1) breathe_mult = 1;
else if (breathe_mult < 0) breathe_mult = 0;
}
}
uint8_t fcur = 0;
uint8_t fmax = 0;
//Frames setup
while (f[fcur].end != 1)
{
fcur++; //Count frames
}
fmax = fcur; //Store total frames count
while (led_cur < lede && led_this_run < led_per_run)
{
ro = 0;
go = 0;
bo = 0;
if (led_lighting_mode == LED_MODE_KEYS_ONLY && led_cur->scan == 255)
{
//Do not act on this LED
}
else if (led_lighting_mode == LED_MODE_NON_KEYS_ONLY && led_cur->scan != 255)
{
//Do not act on this LED
}
else if (led_lighting_mode == LED_MODE_INDICATORS_ONLY)
{
//Do not act on this LED (Only show indicators)
}
else
{
//Act on LED
for (fcur = 0; fcur < fmax; fcur++)
{
if (led_animation_orientation)
{
po = led_cur->py;
}
else
{
po = led_cur->px;
}
float pomod;
pomod = (float)(disp.frame % (uint32_t)(1000.0f / led_animation_speed)) / 10.0f * led_animation_speed;
//Add in any moving effects
if ((!led_animation_direction && f[fcur].ef & EF_SCR_R) || (led_animation_direction && (f[fcur].ef & EF_SCR_L)))
{
pomod *= 100.0f;
pomod = (uint32_t)pomod % 10000;
pomod /= 100.0f;
po -= pomod;
if (po > 100) po -= 100;
else if (po < 0) po += 100;
}
else if ((!led_animation_direction && f[fcur].ef & EF_SCR_L) || (led_animation_direction && (f[fcur].ef & EF_SCR_R)))
{
pomod *= 100.0f;
pomod = (uint32_t)pomod % 10000;
pomod /= 100.0f;
po += pomod;
if (po > 100) po -= 100;
else if (po < 0) po += 100;
}
//Check if LED's po is in current frame
if (po < f[fcur].hs) continue;
if (po > f[fcur].he) continue;
//note: < 0 or > 100 continue
//Calculate the po within the start-stop percentage for color blending
po = (po - f[fcur].hs) / (f[fcur].he - f[fcur].hs);
//Add in any color effects
if (f[fcur].ef & EF_OVER)
{
ro = (po * (f[fcur].re - f[fcur].rs)) + f[fcur].rs;// + 0.5;
go = (po * (f[fcur].ge - f[fcur].gs)) + f[fcur].gs;// + 0.5;
bo = (po * (f[fcur].be - f[fcur].bs)) + f[fcur].bs;// + 0.5;
}
else if (f[fcur].ef & EF_SUBTRACT)
{
ro -= (po * (f[fcur].re - f[fcur].rs)) + f[fcur].rs;// + 0.5;
go -= (po * (f[fcur].ge - f[fcur].gs)) + f[fcur].gs;// + 0.5;
bo -= (po * (f[fcur].be - f[fcur].bs)) + f[fcur].bs;// + 0.5;
}
else
{
ro += (po * (f[fcur].re - f[fcur].rs)) + f[fcur].rs;// + 0.5;
go += (po * (f[fcur].ge - f[fcur].gs)) + f[fcur].gs;// + 0.5;
bo += (po * (f[fcur].be - f[fcur].bs)) + f[fcur].bs;// + 0.5;
}
}
}
//Clamp values 0-255
if (ro > 255) ro = 255; else if (ro < 0) ro = 0;
if (go > 255) go = 255; else if (go < 0) go = 0;
if (bo > 255) bo = 255; else if (bo < 0) bo = 0;
if (led_animation_breathing)
{
ro *= breathe_mult;
go *= breathe_mult;
bo *= breathe_mult;
}
*led_cur->rgb.r = (uint8_t)ro;
*led_cur->rgb.g = (uint8_t)go;
*led_cur->rgb.b = (uint8_t)bo;
#ifdef USB_LED_INDICATOR_ENABLE
if (keyboard_leds())
{
uint8_t kbled = keyboard_leds();
if (
#if USB_LED_NUM_LOCK_SCANCODE != 255
(led_cur->scan == USB_LED_NUM_LOCK_SCANCODE && kbled & (1<<USB_LED_NUM_LOCK)) ||
#endif //NUM LOCK
#if USB_LED_CAPS_LOCK_SCANCODE != 255
(led_cur->scan == USB_LED_CAPS_LOCK_SCANCODE && kbled & (1<<USB_LED_CAPS_LOCK)) ||
#endif //CAPS LOCK
#if USB_LED_SCROLL_LOCK_SCANCODE != 255
(led_cur->scan == USB_LED_SCROLL_LOCK_SCANCODE && kbled & (1<<USB_LED_SCROLL_LOCK)) ||
#endif //SCROLL LOCK
#if USB_LED_COMPOSE_SCANCODE != 255
(led_cur->scan == USB_LED_COMPOSE_SCANCODE && kbled & (1<<USB_LED_COMPOSE)) ||
#endif //COMPOSE
#if USB_LED_KANA_SCANCODE != 255
(led_cur->scan == USB_LED_KANA_SCANCODE && kbled & (1<<USB_LED_KANA)) ||
#endif //KANA
(0))
{
if (*led_cur->rgb.r > 127) *led_cur->rgb.r = 0;
else *led_cur->rgb.r = 255;
if (*led_cur->rgb.g > 127) *led_cur->rgb.g = 0;
else *led_cur->rgb.g = 255;
if (*led_cur->rgb.b > 127) *led_cur->rgb.b = 0;
else *led_cur->rgb.b = 255;
}
}
#endif //USB_LED_INDICATOR_ENABLE
led_cur++;
led_this_run++;
}
}
uint8_t led_matrix_init(void)
{
DBGC(DC_LED_MATRIX_INIT_BEGIN);
issi3733_prepare_arrays();
led_matrix_prepare();
disp.frame = 0;
led_next_run = 0;
led_enabled = 1;
led_animation_id = 0;
led_lighting_mode = LED_MODE_NORMAL;
led_animation_speed = 4.0f;
led_animation_direction = 0;
led_animation_orientation = 0;
led_animation_breathing = 0;
led_animation_breathe_cur = BREATHE_MIN_STEP;
breathe_step = 1;
breathe_dir = 1;
gcr_min_counter = 0;
v_5v_cat_hit = 0;
//Run led matrix code once for initial LED coloring
led_cur = 0;
rgb_matrix_init_user();
led_matrix_run();
DBGC(DC_LED_MATRIX_INIT_COMPLETE);
return 0;
}
__attribute__ ((weak))
void rgb_matrix_init_user(void) {
}
#define LED_UPDATE_RATE 10 //ms
//led data processing can take time, so process data in chunks to free up the processor
//this is done through led_cur and lede
void led_matrix_task(void)
{
if (led_enabled)
{
//If an update may run and frame processing has completed
if (CLK_get_ms() >= led_next_run && led_cur == lede)
{
uint8_t drvid;
led_next_run = CLK_get_ms() + LED_UPDATE_RATE; //Set next frame update time
//NOTE: GCR does not need to be timed with LED processing, but there is really no harm
if (gcr_actual != gcr_actual_last)
{
for (drvid=0;drvid<ISSI3733_DRIVER_COUNT;drvid++)
I2C_LED_Q_GCR(drvid); //Queue data
gcr_actual_last = gcr_actual;
}
for (drvid=0;drvid<ISSI3733_DRIVER_COUNT;drvid++)
I2C_LED_Q_PWM(drvid); //Queue data
i2c_led_q_run();
led_cur = 0; //Signal next frame calculations may begin
}
}
//Process more data if not finished
if (led_cur != lede)
{
//m15_off; //debug profiling
led_matrix_run();
//m15_on; //debug profiling
}
}
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