leds-lp5521.h

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/*
 * LP5521 LED chip driver.
 *
 * Copyright (C) 2010 Nokia Corporation
 *
 * Contact: Samu Onkalo <[email protected]>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */

#ifndef __LINUX_LP5521_H
#define __LINUX_LP5521_H

/* See Documentation/leds/leds-lp5521.txt */

struct lp5521_led_config {
    char        *name;
    u8      chan_nr;
    u8      led_current; /* mA x10, 0 if led is not connected */
    u8      max_current;
};

struct lp5521_led_pattern {
    u8 *r;
    u8 *g;
    u8 *b;
    u8 size_r;
    u8 size_g;
    u8 size_b;
};

#define LP5521_CLOCK_AUTO   0
#define LP5521_CLOCK_INT    1
#define LP5521_CLOCK_EXT    2

/* Bits in CONFIG register */
#define LP5521_PWM_HF           0x40    /* PWM: 0 = 256Hz, 1 = 558Hz */
#define LP5521_PWRSAVE_EN       0x20    /* 1 = Power save mode */
#define LP5521_CP_MODE_OFF      0   /* Charge pump (CP) off */
#define LP5521_CP_MODE_BYPASS       8   /* CP forced to bypass mode */
#define LP5521_CP_MODE_1X5      0x10    /* CP forced to 1.5x mode */
#define LP5521_CP_MODE_AUTO     0x18    /* Automatic mode selection */
#define LP5521_R_TO_BATT        4   /* R out: 0 = CP, 1 = Vbat */
#define LP5521_CLK_SRC_EXT      0   /* Ext-clk source (CLK_32K) */
#define LP5521_CLK_INT          1   /* Internal clock */
#define LP5521_CLK_AUTO         2   /* Automatic clock selection */

struct lp5521_platform_data {
    struct lp5521_led_config *led_config;
    u8  num_channels;
    u8  clock_mode;
    int (*setup_resources)(void);
    void    (*release_resources)(void);
    void    (*enable)(bool state);
    const char *label;
    u8  update_config;
    struct lp5521_led_pattern *patterns;
    int num_patterns;
};

#endif /* __LINUX_LP5521_H */