marvell/services/audio/libacm/acm/src/acm_ustica.c

/*
* All Rights Reserved
*
* MARVELL CONFIDENTIAL
* Copyright 2012 Marvell International Ltd All Rights Reserved.
* The source code contained or described herein and all documents related to
* the source code ("Material") are owned by Marvell International Ltd or its
* suppliers or licensors. Title to the Material remains with Marvell International Ltd
* or its suppliers and licensors. The Material contains trade secrets and
* proprietary and confidential information of Marvell or its suppliers and
* licensors. The Material is protected by worldwide copyright and trade secret
* laws and treaty provisions. No part of the Material may be used, copied,
* reproduced, modified, published, uploaded, posted, transmitted, distributed,
* or disclosed in any way without Marvell's prior express written permission.
*
* No license under any patent, copyright, trade secret or other intellectual
* property right is granted to or conferred upon you by disclosure or delivery
* of the Materials, either expressly, by implication, inducement, estoppel or
* otherwise. Any license under such intellectual property rights must be
* express and approved by Marvell in writing.
*
*/

#define LOG_TAG "acm_ach_ustica"
#define LOG_NDEBUG 0

#include <cutils/log.h>
#include "acm_ustica.h"

#ifdef PXA1826_AUDIO
#ifndef ACM_ALSA_INIT
#define ACM_ALSA_INIT
#endif
#endif

extern int codec_reg_num;

static void Ustica_Enable(void);
static void Ustica_Disable(void);
static void Ustica_Reset(void);
static void Ustica_GetTypeAndID(int *type, unsigned char *id);
static ACH_ReturnCode Ustica_Handle(void *setting);

ACH_ComponentHandler ustica_handler = {
    COMPONENT_INACTIVE,
    0,
    Ustica_Enable,
    Ustica_Disable,
    Ustica_Reset,
    Ustica_GetTypeAndID,
    Ustica_Handle,
};

extern int I2CInit(void);
extern int I2CDeInit(void);
extern void I2CWrite(unsigned char numid, unsigned short value);
extern void I2CRead(unsigned char numid, unsigned char *value);

static void Ustica_RegSet(unsigned char numid, unsigned char value) {
#ifndef DEBUG_FAKE_ACH
    I2CWrite(numid, value);
#else
	LOGD(Ustica_RegSet, "  FAKE_ACH: %s(0x%x, 0x%x)", __FUNCTION__, numid, value);
#endif
}

void Ustica_RegGet(unsigned char numid, unsigned char *value) {
#ifndef DEBUG_FAKE_ACH
    I2CRead(numid, value);
#else
	LOGD(Ustica_RegGet, "  FAKE_ACH: %s(0x%x, ..)", __FUNCTION__, numid);
#endif
}

static void Ustica_ResetRegCache() {
    int size = sizeof(reg_cache) / sizeof(reg_cache[0]);
    int i = 0;

    for (i = 0; i < size; i++) {
        reg_cache[i].reg_value = reg_cache[i].reg_default;
    }
}

unsigned char Ustica_GetRegNumId(unsigned char reg_index) {
    unsigned char i = 0;

    for (i = 0; i < NUM_OF_REGS; i++) {
        if (reg_cache[i].reg_index == reg_index) {
            return codec_reg_num + i;
        }
    }

    return 0;
}

//--------------------------------------------------------------
//-------- External ACH APIs
//--------------------------------------------------------------
#ifdef ACM_ALSA_INIT
// NOTE about pair Enable/Disable
//  On startup Disable could be called without Enable as Init/Reset sequence
//  Skip DeInit for first Disable without Enable
//
static int _acm_initialized;
#endif

static void Ustica_Enable(void) {
    LOGI(Ustica_Enable, "%s: enable ustica component", __FUNCTION__);
#ifdef ACM_ALSA_INIT
	_acm_initialized = 1;
	I2CInit(); //adaptor to alsa-mixer
#endif
}

static void Ustica_Disable(void) {
    LOGI(Ustica_Disable, "%s: disable ustica component", __FUNCTION__);
#ifdef ACM_ALSA_INIT
	if (_acm_initialized) {
		_acm_initialized = 1;
		I2CDeInit(); //adaptor to alsa-mixer
	}
#endif
}

static void Ustica_Reset(void) {
    LOGI(Ustica_Reset, "%s: Reset ustica registers!", __FUNCTION__);
    int size = sizeof(reg_cache) / sizeof(reg_cache[0]);
    int size_col = sizeof(reg_cache[0]) / sizeof(unsigned char);
    int i, k = 0;
    unsigned char j, numid, value, cache_idx;
    Ustica_RegisterCache reg_cache_inorder[size];

#ifdef ACM_ALSA_INIT
	I2CInit(); //make sure to enable mixer before and close after this operation
#endif
    for (j = 0x0; j <= 0xff; j++){
        if (k == size){
            LOGI(Ustica_Reset0, "%s: copy completed !", __FUNCTION__);
            break;
        }

        for (i = 0; i < size; i++) {
            if (reg_cache[i].reg_prior == j) {
                memcpy(&reg_cache_inorder[k], &reg_cache[i], size_col);
                k++;
            }
        }
    }

    for (k = 0; k < size; k++) {
        if (reg_cache_inorder[k].reg_prior == 0x0) {
            continue;
        } else {
            break;
        }
    }

    for (; k < size; k++) {
        numid = Ustica_GetRegNumId(reg_cache_inorder[k].reg_index);
        if (numid == 0) {
            LOGW(Ustica_Reset1, "%s: Invalid numid = %d!", __FUNCTION__, numid);
            continue;
        }

        value = reg_cache_inorder[k].reg_default;
        cache_idx = numid - codec_reg_num;
        if (cache_idx < size)
            reg_cache[cache_idx].reg_value = value;
        Ustica_RegSet(numid, value);
#ifdef DEBUG_USTICA
        LOGI(Ustica_Reset2, "%s: resets ustica register 0x%lx to value --> 0x%lx",
            __FUNCTION__,
            reg_cache_inorder[k].reg_index,
            value);
#endif
    }
#ifdef ACM_ALSA_INIT
	I2CDeInit(); //make sure to enable mixer before and close after this operation
#endif
}

static void Ustica_GetTypeAndID(int *type, unsigned char *id){
    LOGI(Ustica_GetTypeAndID, "%s: Get type and ID for ustica component", __FUNCTION__);
    *type = COMPONENT_TYPE_POWER;
#ifdef ACM_ALSA_INIT
	I2CInit(); //make sure to enable mixer before and close after this operation
#endif
    Ustica_RegGet(USTICA_ID_REG, id);
#ifdef ACM_ALSA_INIT
	I2CDeInit(); //make sure to enable mixer before and close after this operation
#endif
}

static ACH_ReturnCode Ustica_Handle(void *setting) {
    ACH_ComponentParameter *param = (ACH_ComponentParameter *)setting;
    unsigned char numid, value, cache_idx;

    if (param && param->i2c.reg_value) {
        numid = Ustica_GetRegNumId(param->i2c.reg_index);
        if (numid > 0) {
            //compare with register cache
            cache_idx = numid - codec_reg_num;
            value = (reg_cache[cache_idx].reg_value & ~param->i2c.reg_mask) | (*param->i2c.reg_value);
            if ((reg_cache[cache_idx].reg_value & param->i2c.reg_mask) != (*param->i2c.reg_value)) {
#ifdef DEBUG_USTICA
                LOGI(Ustica_Handle, "%s: set register 0x%lx [0x%lx --> 0x%lx]",
                    __FUNCTION__,
                    param->i2c.reg_index,
                    reg_cache[cache_idx].reg_value,
                    value);
#endif

                reg_cache[cache_idx].reg_value = value;
                Ustica_RegSet(numid, reg_cache[cache_idx].reg_value);
            } else {
#ifdef DEBUG_USTICA
                LOGI(Ustica_Handle1, "%s: set register 0x%lx [0x%lx --> 0x%lx] (unchanged)",
                    __FUNCTION__,
                    param->i2c.reg_index,
                    reg_cache[cache_idx].reg_value,
                    reg_cache[cache_idx].reg_value);
#endif
            }
        }
    }

    return ACH_RC_OK;
}