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imx233: add small framework for LED

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It handles GPIO and PWM based LEDs, possibly with several channels (red-green
LED for example). The debug allows one to play with the setting.
Currently the code supports the ZEN, ZEN X-Fi, and ZEN Mozaic.

Change-Id: I8c3b66e6ba21778acdb123daabb724280a7d1a4f
This commit is contained in:
Amaury Pouly 2017-01-11 16:58:30 +01:00 • committed by Gerrit Rockbox
parent 759a78e5df
commit b23b7088cb
6 changed files with 312 additions and 5 deletions
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134
firmware/target/arm/imx233/debug-imx233.c
View file

@ -45,6 +45,7 @@
#include "button.h"
#include "button-imx233.h"
#include "sdmmc-imx233.h"
#include "led-imx233.h"
#include "storage.h"
#include "regs/usbphy.h"
@ -792,6 +793,13 @@ bool dbg_hw_info_ocotp(void)
}
}
static void get_pwm_freq_duty(int chan, int *freq, int *duty)
{
struct imx233_pwm_info_t info = imx233_pwm_get_info(chan);
*freq = imx233_clkctrl_get_freq(CLK_XTAL) * 1000 / info.cdiv / info.period;
*duty = (info.inactive - info.active) * 100 / info.period;
}
bool dbg_hw_info_pwm(void)
{
lcd_setfont(FONT_SYSFIXED);
@ -833,14 +841,14 @@ bool dbg_hw_info_pwm(void)
}
else
{
char *prefix = "";
int freq = imx233_clkctrl_get_freq(CLK_XTAL) * 1000 / info.cdiv / info.period;
int freq, duty;
get_pwm_freq_duty(i, &freq, &duty);
const char *prefix = "";
if(freq > 1000)
{
prefix = "K";
freq /= 1000;
}
int duty = (info.inactive - info.active) * 100 / info.period;
lcd_putsf(0, line++, "%d @%d %sHz, %d%% %c/%c", i, freq, prefix,
duty, info.active_state, info.inactive_state);
}
@ -1261,6 +1269,125 @@ bool dbg_hw_info_sdmmc(void)
}
}
static const char *get_led_col(enum imx233_led_color_t col)
{
switch(col)
{
case LED_RED: return "red";
case LED_GREEN: return "green";
case LED_BLUE: return "blue";
default: return "unknown";
}
}
bool dbg_hw_info_led(void)
{
lcd_setfont(FONT_SYSFIXED);
int cur_led = 0, cur_chan = 0;
bool nr_leds = imx233_led_get_count();
struct imx233_led_t *leds = imx233_led_get_info();
bool prev_pending = false;
bool next_pending = false;
bool editing = false;
while(1)
{
int button = my_get_action(HZ / 10);
switch(button)
{
case ACT_NEXT:
if(nr_leds > 0 && !editing)
{
cur_chan++;
if(cur_chan == leds[cur_led].nr_chan)
{
cur_chan = 0;
cur_led = (cur_led + 1) % nr_leds;
}
}
else
next_pending = true;
break;
case ACT_PREV:
if(nr_leds > 0 && !editing)
{
cur_chan--;
if(cur_chan == -1)
{
cur_led = (cur_led + nr_leds - 1) % nr_leds;
cur_chan = leds[cur_led].nr_chan - 1;
}
}
else
prev_pending = true;
break;
case ACT_OK:
editing = !editing;
break;
case ACT_CANCEL:
lcd_setfont(FONT_UI);
return false;
}
lcd_clear_display();
int line = 0;
if(nr_leds == 0)
lcd_putsf(0, line++, "This device has no LED!");
for(int led = 0; led < imx233_led_get_count(); led++)
{
lcd_putsf(0, line++, "LED %d:", led);
for(int chan = 0; chan < leds[led].nr_chan; chan++)
{
/* read current configuration */
char buffer[64];
bool use_pwm = false;
int duty = 0, freq = 1;
bool on = false;
if(leds[led].chan[chan].has_pwm &&
imx233_pwm_is_enabled(leds[led].chan[chan].pwm_chan))
{
get_pwm_freq_duty(leds[led].chan[chan].pwm_chan, &freq, &duty);
/* assume active is high and inactive is low */
snprintf(buffer, sizeof(buffer), "%d Hz, %d%%", freq, duty);
use_pwm = true;
}
else
{
on = imx233_pinctrl_get_gpio(leds[led].chan[chan].gpio_bank,
leds[led].chan[chan].gpio_pin);
snprintf(buffer, sizeof(buffer), "%s", on ? "on" : "off");
}
if(cur_led == led && cur_chan == chan)
lcd_set_foreground(editing ? LCD_RGBPACK(255, 0, 0) : LCD_RGBPACK(0, 0, 255));
lcd_putsf(0, line++, " %s: %s",
get_led_col(leds[led].chan[chan].color), buffer);
lcd_set_foreground(LCD_WHITE);
/* do edit */
if(cur_led != led || cur_chan != chan || !editing)
continue;
if(!next_pending && !prev_pending)
continue;
bool inc = next_pending;
next_pending = false;
prev_pending = false;
if(use_pwm)
{
duty += inc ? 10 : -10;
if(duty < 0)
duty = 0;
if(duty > 100)
duty = 100;
imx233_led_set_pwm(cur_led, cur_chan, freq, duty);
}
else
imx233_led_set(cur_led, cur_chan, !on);
}
}
lcd_update();
yield();
}
}
#ifdef HAVE_DUALBOOT_STUB
bool dbg_hw_info_dualboot(void)
{
@ -1341,6 +1468,7 @@ static struct
{"timrot", dbg_hw_info_timrot},
{"button", dbg_hw_info_button},
{"sdmmc", dbg_hw_info_sdmmc},
{"led", dbg_hw_info_led},
#ifdef HAVE_DUALBOOT_STUB
{"dualboot", dbg_hw_info_dualboot},
#endif