mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-08 16:41:55 +00:00
c06e987c1b
This makes it possible to define color constants so as to reduce code size when called. BUG=chrome-os-partner:17561 TEST=Build success. BRANCH=none Change-Id: I800b8d4b84749907b071febfea58d27fef7cc2b7 Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/42617 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*
|
|
* TI LP5562 driver.
|
|
*/
|
|
|
|
#include "board.h"
|
|
#include "console.h"
|
|
#include "i2c.h"
|
|
#include "lp5562.h"
|
|
#include "timer.h"
|
|
#include "uart.h"
|
|
#include "util.h"
|
|
|
|
/* 8-bit I2C address */
|
|
#define LP5562_I2C_ADDR (0x30 << 1)
|
|
|
|
inline int lp5562_write(uint8_t reg, uint8_t val)
|
|
{
|
|
return i2c_write8(I2C_PORT_HOST, LP5562_I2C_ADDR, reg, val);
|
|
}
|
|
|
|
int lp5562_set_color(uint32_t rgb)
|
|
{
|
|
int ret = 0;
|
|
|
|
ret |= lp5562_write(LP5562_REG_B_PWM, rgb & 0xff);
|
|
ret |= lp5562_write(LP5562_REG_G_PWM, (rgb >> 8) & 0xff);
|
|
ret |= lp5562_write(LP5562_REG_R_PWM, (rgb >> 16) & 0xff);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int lp5562_poweron(void)
|
|
{
|
|
int ret = 0;
|
|
|
|
ret |= lp5562_write(LP5562_REG_ENABLE, 0x40);
|
|
udelay(500); /* start-up delay */
|
|
|
|
ret |= lp5562_write(LP5562_REG_CONFIG, 0x1);
|
|
ret |= lp5562_write(LP5562_REG_LED_MAP, 0x0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int lp5562_poweroff(void)
|
|
{
|
|
return lp5562_write(LP5562_REG_ENABLE, 0x0);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* Console commands */
|
|
|
|
static int command_lp5562(int argc, char **argv)
|
|
{
|
|
if (argc == 4) {
|
|
char *e;
|
|
uint8_t red, green, blue;
|
|
|
|
red = strtoi(argv[1], &e, 0);
|
|
if (e && *e)
|
|
return EC_ERROR_PARAM1;
|
|
green = strtoi(argv[2], &e, 0);
|
|
if (e && *e)
|
|
return EC_ERROR_PARAM2;
|
|
blue = strtoi(argv[3], &e, 0);
|
|
if (e && *e)
|
|
return EC_ERROR_PARAM3;
|
|
|
|
return lp5562_set_color((red << 16) | (green << 8) | blue);
|
|
} else if (argc == 2) {
|
|
if (!strcasecmp(argv[1], "on"))
|
|
return lp5562_poweron();
|
|
else if (!strcasecmp(argv[1], "off"))
|
|
return lp5562_poweroff();
|
|
return EC_ERROR_PARAM1;
|
|
}
|
|
|
|
return EC_ERROR_INVAL;
|
|
}
|
|
DECLARE_CONSOLE_COMMAND(lp5562, command_lp5562,
|
|
"on | off | <red> <green> <blue>",
|
|
"Set the color of the LED",
|
|
NULL);
|