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#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <fcntl.h>
#include <ctype.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include "srp_api.h"
#define LOG_TAG "libsrpapi"
#include <cutils/log.h>
/* Disable LOGD message */
#ifdef LOGD
#undef LOGD
#endif
#define LOGD(...)
//#define _USE_WBUF_ /* Buffering before writing srp-rp device */
//#define _DUMP_TO_FILE_
//#define _USE_FW_FROM_DISK_
#ifdef _USE_WBUF_
#define WBUF_LEN_MUL 2
#endif
static int srp_dev = -1;
static int srp_ibuf_size = 0;
static int srp_block_mode = SRP_INIT_BLOCK_MODE;
static unsigned char *wbuf;
static int wbuf_size;
static int wbuf_pos;
#ifdef _DUMP_TO_FILE_
static FILE *fp_dump = NULL;
#endif
#ifdef _USE_WBUF_
static int WriteBuff_Init(void)
{
if (wbuf == NULL) {
wbuf_size = srp_ibuf_size * WBUF_LEN_MUL;
wbuf_pos = 0;
wbuf = (unsigned char *)malloc(wbuf_size);
LOGD("%s: WriteBuffer %dbytes allocated", __func__, wbuf_size);
return 0;
}
LOGE("%s: WriteBuffer already allocated", __func__);
return -1;
}
static int WriteBuff_Deinit(void)
{
if (wbuf != NULL) {
free(wbuf);
wbuf = NULL;
return 0;
}
LOGE("%s: WriteBuffer is not ready", __func__);
return -1;
}
static int WriteBuff_Write(unsigned char *buff, int size_byte)
{
int write_byte;
if ((wbuf_pos + size_byte) < wbuf_size) {
memcpy(&wbuf[wbuf_pos], buff, size_byte);
wbuf_pos += size_byte;
} else {
LOGE("%s: WriteBuffer is filled [%d], ignoring write [%d]", __func__, wbuf_pos, size_byte);
return -1; /* Insufficient buffer */
}
return wbuf_pos;
}
static void WriteBuff_Consume(void)
{
memcpy(wbuf, &wbuf[srp_ibuf_size], srp_ibuf_size * (WBUF_LEN_MUL - 1));
wbuf_pos -= srp_ibuf_size;
}
static void WriteBuff_Flush(void)
{
wbuf_pos = 0;
}
#endif
int SRP_Create(int block_mode)
{
if (srp_dev == -1) {
#ifdef _USE_FW_FROM_DISK_
SRP_Check_AltFirmware();
#endif
srp_block_mode = block_mode;
srp_dev = open(SRP_DEV_NAME, O_RDWR |
((block_mode == SRP_INIT_NONBLOCK_MODE) ? O_NDELAY : 0));
return srp_dev;
}
LOGE("%s: Device is not ready", __func__);
return -1; /* device alreay opened */
}
int SRP_Init(unsigned int ibuf_size)
{
int ret;
if (srp_dev != -1) {
srp_ibuf_size = ibuf_size;
ret = ioctl(srp_dev, SRP_INIT, srp_ibuf_size); /* Initialize IBUF size (4KB ~ 18KB) */
#ifdef _DUMP_TO_FILE_
char outname[256];
int cnt = 0;
while (1) {
sprintf(outname, "/data/rp_dump_%04d.mp3", cnt++);
if (fp_dump = fopen(outname, "rb")) { /* file exist? */
fclose(fp_dump);
} else {
break;
}
}
LOGD("%s: Dump MP3 to %s", __func__, outname);
if (fp_dump = fopen(outname, "wb"))
LOGD("%s: Success to open %s", __func__, outname);
else
LOGD("%s: Fail to open %s", __func__, outname);
#endif
#ifdef _USE_WBUF_
if (ret != -1)
return WriteBuff_Init();
#else
return ret;
#endif
}
LOGE("%s: Device is not ready", __func__);
return -1; /* device is not created */
}
#ifdef _USE_WBUF_
int SRP_Decode(void *buff, int size_byte)
{
int ret;
int val;
int err_code = 0;
if (srp_dev != -1) {
/* Check wbuf before writing buff */
while (wbuf_pos >= srp_ibuf_size) { /* Write_Buffer filled? (IBUF Size)*/
LOGD("%s: Write Buffer is full, Send data to RP", __func__);
ret = write(srp_dev, wbuf, srp_ibuf_size); /* Write Buffer to RP Driver */
if (ret == -1) { /* Fail? */
ioctl(srp_dev, SRP_ERROR_STATE, &val);
if (!val) { /* Write error? */
LOGE("%s: IBUF write fail", __func__);
return -1;
} else { /* Write OK, but RP decode error? */
err_code = val;
LOGE("%s: RP decode error [0x%05X]", __func__, err_code);
}
}
#ifdef _DUMP_TO_FILE_
if (fp_dump)
fwrite(wbuf, srp_ibuf_size, 1, fp_dump);
#endif
WriteBuff_Consume();
}
ret = WriteBuff_Write((unsigned char *)buff, size_byte);
if (ret == -1)
return -1; /* Buffering error */
LOGD("%s: Write Buffer remain [%d]", __func__, wbuf_pos);
return err_code; /* Write Success */
}
LOGE("%s: Device is not ready", __func__);
return -1; /* device is not created */
}
int SRP_Send_EOS(void)
{
int ret;
int val;
if (srp_dev != -1) {
/* Check wbuf before writing buff */
while (wbuf_pos) { /* Write_Buffer ramain?*/
if (wbuf_pos < srp_ibuf_size) {
memset(wbuf + wbuf_pos, 0xFF, srp_ibuf_size - wbuf_pos); /* Fill dummy data */
wbuf_pos = srp_ibuf_size;
}
ret = write(srp_dev, wbuf, srp_ibuf_size); /* Write Buffer to RP Driver */
if (ret == -1) { /* Fail? */
ret = ioctl(srp_dev, SRP_ERROR_STATE, &val);
if (!val) { /* Write error? */
LOGE("%s: IBUF write fail", __func__);
return -1;
} else { /* RP decoe error? */
LOGE("%s: RP decode error [0x%05X]", __func__, val);
return -1;
}
} else { /* Success? */
#ifdef _DUMP_TO_FILE_
if (fp_dump)
fwrite(wbuf, srp_ibuf_size, 1, fp_dump);
#endif
WriteBuff_Consume();
}
}
memset(wbuf, 0xFF, srp_ibuf_size); /* Fill dummy data */
write(srp_dev, wbuf, srp_ibuf_size); /* Write Buffer to RP Driver */
/* Wait until RP decoding over */
return ioctl(srp_dev, SRP_WAIT_EOS);
}
return -1; /* device is not created */
}
#else /* Without WBUF */
int SRP_Decode(void *buff, int size_byte)
{
int ret;
int val;
int err_code = 0;
if (srp_dev != -1) {
LOGD("%s: Send data to RP (%d bytes)", __func__, size_byte);
ret = write(srp_dev, buff, size_byte); /* Write Buffer to RP Driver */
if (ret == -1) { /* Fail? */
ioctl(srp_dev, SRP_ERROR_STATE, &val);
if (!val) { /* Write error? */
LOGE("%s: IBUF write fail", __func__);
return -1;
} else { /* Write OK, but RP decode error? */
err_code = val;
LOGE("%s: RP decode error [0x%05X]", __func__, err_code);
}
}
#ifdef _DUMP_TO_FILE_
if (fp_dump)
fwrite(buff, size_byte, 1, fp_dump);
#endif
return err_code; /* Write Success */
}
LOGE("%s: Device is not ready", __func__);
return -1; /* device is not created */
}
int SRP_Send_EOS(void)
{
/* Wait until RP decoding over */
if (srp_dev != -1)
return ioctl(srp_dev, SRP_SEND_EOS);
return -1; /* device is not created */
}
int SRP_Resume_EOS(void)
{
if (srp_dev != -1)
return ioctl(srp_dev, SRP_RESUME_EOS);
return -1; /* device is not created */
}
#endif
int SRP_Pause(void)
{
if (srp_dev != -1)
return ioctl(srp_dev, SRP_PAUSE);
return -1; /* device is not created */
}
int SRP_Stop(void)
{
if (srp_dev != -1)
return ioctl(srp_dev, SRP_STOP);
return -1; /* device is not created */
}
int SRP_Flush(void)
{
if (srp_dev != -1) {
if (ioctl(srp_dev, SRP_FLUSH) != -1) {
#ifdef _USE_WBUF_
WriteBuff_Flush();
#endif
return 0;
}
}
return -1; /* device is not created */
}
int SRP_SetParams(int id, unsigned long val)
{
if (srp_dev != -1)
return 0; /* not yet */
return -1; /* device is not created */
}
int SRP_GetParams(int id, unsigned long *pval)
{
if (srp_dev != -1)
return ioctl(srp_dev, id, pval);
return -1; /* device is not created */
}
int SRP_Deinit(void)
{
if (srp_dev != -1) {
#ifdef _DUMP_TO_FILE_
if (fp_dump)
fclose(fp_dump);
#endif
#ifdef _USE_WBUF_
WriteBuff_Deinit();
#endif
return ioctl(srp_dev, SRP_DEINIT); /* Deinialize */
}
LOGE("%s: Device is not ready", __func__);
return -1; /* device is not created */
}
int SRP_Terminate(void)
{
int ret;
if (srp_dev != -1) {
ret = close(srp_dev);
if (ret == 0) {
srp_dev = -1; /* device closed */
return 0;
}
}
LOGE("%s: Device is not ready", __func__);
return -1; /* device is not created or close error*/
}
int SRP_IsOpen(void)
{
if (srp_dev == -1) {
LOGD("%s: Device is not opened", __func__);
return 0;
}
LOGD("%s: Device is opened", __func__);
return 1;
}
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