LXR uboot/include/pmic.h

   1/*
   2 *  Copyright (C) 2011 Samsung Electronics
   3 *  Lukasz Majewski <l.majewski@samsung.com>
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24#ifndef __CORE_PMIC_H_
  25#define __CORE_PMIC_H_
  26
  27enum { PMIC_I2C, PMIC_SPI, };
  28enum { I2C_PMIC, I2C_NUM, };
  29enum { PMIC_READ, PMIC_WRITE, };
  30
  31struct p_i2c {
  32        unsigned char addr;
  33        unsigned char *buf;
  34        unsigned char tx_num;
  35};
  36
  37struct p_spi {
  38        unsigned int cs;
  39        unsigned int mode;
  40        unsigned int bitlen;
  41        unsigned int clk;
  42        unsigned int flags;
  43        u32 (*prepare_tx)(u32 reg, u32 *val, u32 write);
  44};
  45
  46struct pmic {
  47        const char *name;
  48        unsigned char bus;
  49        unsigned char interface;
  50        unsigned char number_of_regs;
  51        union hw {
  52                struct p_i2c i2c;
  53                struct p_spi spi;
  54        } hw;
  55};
  56
  57int pmic_init(void);
  58int check_reg(u32 reg);
  59struct pmic *get_pmic(void);
  60int pmic_probe(struct pmic *p);
  61int pmic_reg_read(struct pmic *p, u32 reg, u32 *val);
  62int pmic_reg_write(struct pmic *p, u32 reg, u32 val);
  63int pmic_set_output(struct pmic *p, u32 reg, int ldo, int on);
  64
  65#define pmic_i2c_addr (p->hw.i2c.addr)
  66#define pmic_i2c_tx_num (p->hw.i2c.tx_num)
  67
  68#define pmic_spi_bitlen (p->hw.spi.bitlen)
  69#define pmic_spi_flags (p->hw.spi.flags)
  70
  71#endif /* __CORE_PMIC_H_ */
  72