2 Copyright 2018 Massdrop Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #include "arm_atsam_protocol.h"
19 #include "tmk_core/common/led.h"
22 void SERCOM1_0_Handler( void )
24 if (SERCOM1->I2CM.INTFLAG.bit.ERROR)
26 SERCOM1->I2CM.INTFLAG.reg = SERCOM_I2CM_INTENCLR_ERROR;
30 void DMAC_0_Handler( void )
32 if (DMAC->Channel[0].CHINTFLAG.bit.TCMPL)
34 DMAC->Channel[0].CHINTFLAG.reg = DMAC_CHINTENCLR_TCMPL;
38 i2c_led_q_running = 0;
45 if (DMAC->Channel[0].CHINTFLAG.bit.TERR)
47 DMAC->Channel[0].CHINTFLAG.reg = DMAC_CHINTENCLR_TERR;
51 issi3733_driver_t issidrv[ISSI3733_DRIVER_COUNT];
53 issi3733_led_t led_map[ISSI3733_LED_COUNT+1] = ISSI3733_LED_MAP;
54 issi3733_led_t *lede = led_map + ISSI3733_LED_COUNT; //End pointer of mapping
60 uint8_t gcr_actual_last;
62 #define ACT_GCR_NONE 0
66 #define LED_GCR_STEP_AUTO 2
68 static uint8_t gcr_min_counter;
69 static uint8_t v_5v_cat_hit;
71 //WARNING: Automatic GCR is in place to prevent USB shutdown and LED driver overloading
72 void gcr_compute(void)
74 uint8_t action = ACT_GCR_NONE;
76 if (led_animation_breathing)
77 gcr_use = gcr_breathe;
79 gcr_use = gcr_desired;
81 //If the 5v takes a catastrophic hit, disable the LED drivers briefly, assert auto gcr mode, min gcr and let the auto take over
84 I2C3733_Control_Set(0);
85 //CDC_print("USB: WARNING: 5V catastrophic level reached! Disabling LED drivers!\r\n"); //Blocking print is bad here!
86 v_5v_cat_hit = 20; //~100ms recover
87 gcr_actual = 0; //Minimize GCR
88 usb_gcr_auto = 1; //Force auto mode enabled
91 else if (v_5v_cat_hit > 1)
96 else if (v_5v_cat_hit == 1)
98 I2C3733_Control_Set(1);
99 CDC_print("USB: WARNING: Re-enabling LED drivers\r\n");
106 if (v_5v_avg < V5_LOW) action = ACT_GCR_DEC;
107 else if (v_5v_avg > V5_HIGH && gcr_actual < gcr_use) action = ACT_GCR_INC;
108 else if (gcr_actual > gcr_use) action = ACT_GCR_DEC;
112 if (gcr_actual < gcr_use) action = ACT_GCR_INC;
113 else if (gcr_actual > gcr_use) action = ACT_GCR_DEC;
116 if (action == ACT_GCR_NONE)
120 else if (action == ACT_GCR_INC)
122 if (LED_GCR_STEP_AUTO > LED_GCR_MAX - gcr_actual) gcr_actual = LED_GCR_MAX; //Obey max and prevent wrapping
123 else gcr_actual += LED_GCR_STEP_AUTO;
126 else if (action == ACT_GCR_DEC)
128 if (LED_GCR_STEP_AUTO > gcr_actual) //Prevent wrapping
131 //At this point, power can no longer be cut from the LED drivers, so focus on cutting out extra port if active
132 if (usb_extra_state != USB_EXTRA_STATE_DISABLED_UNTIL_REPLUG) //If not in a wait for replug state
134 if (usb_extra_state == USB_EXTRA_STATE_ENABLED) //If extra usb is enabled
137 if (gcr_min_counter > 200) //5ms per check = 1s delay
139 USB_ExtraSetState(USB_EXTRA_STATE_DISABLED_UNTIL_REPLUG);
140 usb_extra_manual = 0; //Force disable manual mode of extra port
141 if (usb_extra_manual) CDC_print("USB: Disabling extra port until replug and manual mode toggle!\r\n");
142 else CDC_print("USB: Disabling extra port until replug!\r\n");
149 //Power successfully cut back from LED drivers
150 gcr_actual -= LED_GCR_STEP_AUTO;
153 //If breathe mode is active, the top end can fluctuate if the host can not supply enough current
154 //So set the breathe GCR to where it becomes stable
155 if (led_animation_breathing == 1)
157 gcr_breathe = gcr_actual;
158 //PS: At this point, setting breathing to exhale makes a noticebly shorter cycle
159 // and the same would happen maybe one or two more times. Therefore I'm favoring
160 // powering through one full breathe and letting gcr settle completely
168 void issi3733_prepare_arrays(void)
170 memset(issidrv,0,sizeof(issi3733_driver_t) * ISSI3733_DRIVER_COUNT);
173 uint8_t addrs[ISSI3733_DRIVER_COUNT] = ISSI3773_DRIVER_ADDRESSES;
175 for (i=0;i<ISSI3733_DRIVER_COUNT;i++)
177 issidrv[i].addr = addrs[i];
180 issi3733_led_t *cur = led_map;
184 //BYTE: 1 + (SW-1)*16 + (CS-1)
185 cur->rgb.g = issidrv[cur->adr.drv-1].pwm + 1 + ((cur->adr.swg-1)*16 + (cur->adr.cs-1));
186 cur->rgb.r = issidrv[cur->adr.drv-1].pwm + 1 + ((cur->adr.swr-1)*16 + (cur->adr.cs-1));
187 cur->rgb.b = issidrv[cur->adr.drv-1].pwm + 1 + ((cur->adr.swb-1)*16 + (cur->adr.cs-1));
189 //BYTE: 1 + (SW-1)*2 + (CS-1)/8
191 *(issidrv[cur->adr.drv-1].onoff + 1 + (cur->adr.swg-1)*2+(cur->adr.cs-1)/8) |= (1<<((cur->adr.cs-1)%8));
192 *(issidrv[cur->adr.drv-1].onoff + 1 + (cur->adr.swr-1)*2+(cur->adr.cs-1)/8) |= (1<<((cur->adr.cs-1)%8));
193 *(issidrv[cur->adr.drv-1].onoff + 1 + (cur->adr.swb-1)*2+(cur->adr.cs-1)/8) |= (1<<((cur->adr.cs-1)%8));
199 void disp_calc_extents(void)
201 issi3733_led_t *cur = led_map;
210 if (cur->x < disp.left) disp.left = cur->x;
211 if (cur->x > disp.right) disp.right = cur->x;
212 if (cur->y < disp.bottom) disp.bottom = cur->y;
213 if (cur->y > disp.top) disp.top = cur->y;
218 disp.width = disp.right - disp.left;
219 disp.height = disp.top - disp.bottom;
222 void disp_pixel_setup(void)
224 issi3733_led_t *cur = led_map;
228 cur->px = (cur->x - disp.left) / disp.width * 100;
229 cur->py = (cur->y - disp.top) / disp.height * 100;
238 void led_matrix_prepare(void)
245 float led_animation_speed;
246 uint8_t led_animation_direction;
247 uint8_t led_animation_breathing;
248 uint8_t led_animation_breathe_cur;
249 uint8_t breathe_step;
251 uint64_t led_next_run;
253 uint8_t led_animation_id;
254 uint8_t led_lighting_mode;
256 issi3733_led_t *led_cur;
257 uint8_t led_per_run = 15;
260 void led_matrix_run(led_setup_t *f)
266 uint8_t led_this_run = 0;
268 if (led_cur == 0) //Denotes start of new processing cycle in the case of chunked processing
276 if (led_animation_breathing)
278 led_animation_breathe_cur += breathe_step * breathe_dir;
280 if (led_animation_breathe_cur >= BREATHE_MAX_STEP)
282 else if (led_animation_breathe_cur <= BREATHE_MIN_STEP)
285 //Brightness curve created for 256 steps, 0 - ~98%
286 breathe_mult = 0.000015 * led_animation_breathe_cur * led_animation_breathe_cur;
287 if (breathe_mult > 1) breathe_mult = 1;
288 else if (breathe_mult < 0) breathe_mult = 0;
296 while (f[fcur].end != 1)
298 fcur++; //Count frames
301 fmax = fcur; //Store total frames count
303 while (led_cur < lede && led_this_run < led_per_run)
309 if (led_lighting_mode == LED_MODE_KEYS_ONLY && led_cur->scan == 255)
311 //Do not act on this LED
313 else if (led_lighting_mode == LED_MODE_NON_KEYS_ONLY && led_cur->scan != 255)
315 //Do not act on this LED
317 else if (led_lighting_mode == LED_MODE_INDICATORS_ONLY)
319 //Do not act on this LED (Only show indicators)
324 for (fcur = 0; fcur < fmax; fcur++)
328 pxmod = (float)(disp.frame % (uint32_t)(1000.0f / led_animation_speed)) / 10.0f * led_animation_speed;
330 //Add in any moving effects
331 if ((!led_animation_direction && f[fcur].ef & EF_SCR_R) || (led_animation_direction && (f[fcur].ef & EF_SCR_L)))
334 pxmod = (uint32_t)pxmod % 10000;
339 if (px > 100) px -= 100;
340 else if (px < 0) px += 100;
342 else if ((!led_animation_direction && f[fcur].ef & EF_SCR_L) || (led_animation_direction && (f[fcur].ef & EF_SCR_R)))
345 pxmod = (uint32_t)pxmod % 10000;
349 if (px > 100) px -= 100;
350 else if (px < 0) px += 100;
353 //Check if LED's px is in current frame
354 if (px < f[fcur].hs) continue;
355 if (px > f[fcur].he) continue;
356 //note: < 0 or > 100 continue
358 //Calculate the px within the start-stop percentage for color blending
359 px = (px - f[fcur].hs) / (f[fcur].he - f[fcur].hs);
361 //Add in any color effects
362 if (f[fcur].ef & EF_OVER)
364 ro = (px * (f[fcur].re - f[fcur].rs)) + f[fcur].rs;// + 0.5;
365 go = (px * (f[fcur].ge - f[fcur].gs)) + f[fcur].gs;// + 0.5;
366 bo = (px * (f[fcur].be - f[fcur].bs)) + f[fcur].bs;// + 0.5;
368 else if (f[fcur].ef & EF_SUBTRACT)
370 ro -= (px * (f[fcur].re - f[fcur].rs)) + f[fcur].rs;// + 0.5;
371 go -= (px * (f[fcur].ge - f[fcur].gs)) + f[fcur].gs;// + 0.5;
372 bo -= (px * (f[fcur].be - f[fcur].bs)) + f[fcur].bs;// + 0.5;
376 ro += (px * (f[fcur].re - f[fcur].rs)) + f[fcur].rs;// + 0.5;
377 go += (px * (f[fcur].ge - f[fcur].gs)) + f[fcur].gs;// + 0.5;
378 bo += (px * (f[fcur].be - f[fcur].bs)) + f[fcur].bs;// + 0.5;
384 if (ro > 255) ro = 255; else if (ro < 0) ro = 0;
385 if (go > 255) go = 255; else if (go < 0) go = 0;
386 if (bo > 255) bo = 255; else if (bo < 0) bo = 0;
388 if (led_animation_breathing)
395 *led_cur->rgb.r = (uint8_t)ro;
396 *led_cur->rgb.g = (uint8_t)go;
397 *led_cur->rgb.b = (uint8_t)bo;
399 #ifdef USB_LED_INDICATOR_ENABLE
402 uint8_t kbled = keyboard_leds();
404 #if USB_LED_NUM_LOCK_SCANCODE != 255
405 (led_cur->scan == USB_LED_NUM_LOCK_SCANCODE && kbled & (1<<USB_LED_NUM_LOCK)) ||
407 #if USB_LED_CAPS_LOCK_SCANCODE != 255
408 (led_cur->scan == USB_LED_CAPS_LOCK_SCANCODE && kbled & (1<<USB_LED_CAPS_LOCK)) ||
410 #if USB_LED_SCROLL_LOCK_SCANCODE != 255
411 (led_cur->scan == USB_LED_SCROLL_LOCK_SCANCODE && kbled & (1<<USB_LED_SCROLL_LOCK)) ||
413 #if USB_LED_COMPOSE_SCANCODE != 255
414 (led_cur->scan == USB_LED_COMPOSE_SCANCODE && kbled & (1<<USB_LED_COMPOSE)) ||
416 #if USB_LED_KANA_SCANCODE != 255
417 (led_cur->scan == USB_LED_KANA_SCANCODE && kbled & (1<<USB_LED_KANA)) ||
421 if (*led_cur->rgb.r > 127) *led_cur->rgb.r = 0;
422 else *led_cur->rgb.r = 255;
423 if (*led_cur->rgb.g > 127) *led_cur->rgb.g = 0;
424 else *led_cur->rgb.g = 255;
425 if (*led_cur->rgb.b > 127) *led_cur->rgb.b = 0;
426 else *led_cur->rgb.b = 255;
429 #endif //USB_LED_INDICATOR_ENABLE
436 uint8_t led_matrix_init(void)
438 DBGC(DC_LED_MATRIX_INIT_BEGIN);
440 issi3733_prepare_arrays();
442 led_matrix_prepare();
448 led_animation_id = 0;
449 led_lighting_mode = LED_MODE_NORMAL;
450 led_animation_speed = 4.0f;
451 led_animation_direction = 0;
452 led_animation_breathing = 0;
453 led_animation_breathe_cur = BREATHE_MIN_STEP;
460 //Run led matrix code once for initial LED coloring
462 led_matrix_run((led_setup_t*)led_setups[led_animation_id]);
464 DBGC(DC_LED_MATRIX_INIT_COMPLETE);
469 #define LED_UPDATE_RATE 10 //ms
471 //led data processing can take time, so process data in chunks to free up the processor
472 //this is done through led_cur and lede
473 void led_matrix_task(void)
477 //If an update may run and frame processing has completed
478 if (CLK_get_ms() >= led_next_run && led_cur == lede)
482 led_next_run = CLK_get_ms() + LED_UPDATE_RATE; //Set next frame update time
484 //NOTE: GCR does not need to be timed with LED processing, but there is really no harm
485 if (gcr_actual != gcr_actual_last)
487 for (drvid=0;drvid<ISSI3733_DRIVER_COUNT;drvid++)
488 I2C_LED_Q_GCR(drvid); //Queue data
489 gcr_actual_last = gcr_actual;
492 for (drvid=0;drvid<ISSI3733_DRIVER_COUNT;drvid++)
493 I2C_LED_Q_PWM(drvid); //Queue data
497 led_cur = 0; //Signal next frame calculations may begin
501 //Process more data if not finished
504 //m15_off; //debug profiling
505 led_matrix_run((led_setup_t*)led_setups[led_animation_id]);
506 //m15_on; //debug profiling