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spi_sif_esp.c
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spi_sif_esp.c
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/*
* Copyright (c) 2010 -2014 Espressif System.
*
* spi serial i/f driver
* - sdio device control routines
* - sync/async DMA/PIO read/write
*
*/
#ifdef ESP_USE_SPI
#include <linux/module.h>
#include <net/mac80211.h>
#include <linux/time.h>
#include <linux/pm.h>
#include <linux/spi/spi.h>
#include <linux/interrupt.h>
#include <linux/kthread.h>
#include "esp_pub.h"
#include "esp_sif.h"
#include "esp_sip.h"
#include "esp_debug.h"
#include "slc_host_register.h"
#include "esp_version.h"
#include "esp_ctrl.h"
#include "esp_file.h"
#ifdef USE_EXT_GPIO
#include "esp_ext.h"
#endif /* USE_EXT_GPIO */
static int __init esp_spi_init(void);
static void __exit esp_spi_exit(void);
#ifdef ESP_PREALLOC
extern u8 *esp_get_lspi_buf(void);
extern void esp_put_lspi_buf(u8 **p);
#endif
#define SPI_BLOCK_SIZE (512)
#define MAX_BUF_SIZE (48*1024)
static unsigned char *buf_addr = NULL;
static unsigned char *tx_cmd;
static unsigned char *rx_cmd;
static unsigned char *check_buf = NULL;
static unsigned char *ff_buf = NULL;
unsigned int crc_ta_8[256]={
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
};
unsigned int crc_cal_by_byte(unsigned char* ptr, int len)
{
unsigned short crc = 0;
while(len-- != 0)
{
unsigned int high = (unsigned int)(crc >> 8);
crc <<= 8;
crc ^= crc_ta_8[high^*ptr];
ptr++;
}
return crc;
}
struct task_struct *sif_irq_thread;
#define ESP_DMA_IBUFSZ 2048
//unsigned int esp_msg_level = 0;
unsigned int esp_msg_level = ESP_DBG_ERROR | ESP_SHOW;
static struct semaphore esp_powerup_sem;
static enum esp_sdio_state sif_sdio_state;
struct esp_spi_ctrl *sif_sctrl = NULL;
static struct esp_spi_resp spi_resp;
#ifdef ESP_ANDROID_LOGGER
bool log_off = false;
#endif /* ESP_ANDROID_LOGGER */
#ifdef REQUEST_RTC_IRQ
extern int request_rtc_irq(void);
#endif
#include "spi_stub.c"
struct esp_spi_resp *sif_get_spi_resp(void)
{
return &spi_resp;
}
void sif_lock_bus(struct esp_pub *epub)
{
EPUB_FUNC_CHECK(epub, _exit);
spi_bus_lock(EPUB_TO_FUNC(epub)->master);
_exit:
return;
}
void sif_unlock_bus(struct esp_pub *epub)
{
EPUB_FUNC_CHECK(epub, _exit);
spi_bus_unlock(EPUB_TO_FUNC(epub)->master);
_exit:
return;
}
int sif_spi_write_then_read(struct spi_device *spi, unsigned char* bufwrite, int sizesend, unsigned char* bufread, int sizeread)
{
int error;
error = spi_write_then_read(spi, bufwrite,sizesend, bufread, sizeread);
if (error) {
esp_dbg(ESP_DBG_ERROR, "%s: failed, error: %d\n",
__func__, error);
return error;
}
return 0;
}
int sif_spi_write_async_read(struct spi_device *spi, unsigned char* bufwrite,unsigned char* bufread,int size)
{
struct spi_transfer xfer = {
.rx_buf = bufread,
.tx_buf = bufwrite,
.len = size,
.bits_per_word = 8,
.speed_hz = SPI_FREQ,
};
struct spi_message msg;
int error;
spi_message_init(&msg);
spi_message_add_tail(&xfer, &msg);
error = spi_sync_locked(spi, &msg);
if (error) {
esp_dbg(ESP_DBG_ERROR, "spierr %s: failed, error: %d\n",
__func__, error);
return error;
}
return 0;
}
int sif_spi_write_raw(struct spi_device *spi, unsigned char* buf, int size)
{
int err;
struct spi_transfer xfer = {
.tx_buf = buf,
.len = size,
.bits_per_word = 8,
.speed_hz = SPI_FREQ,
};
struct spi_message msg;
spi_message_init(&msg);
spi_message_add_tail(&xfer, &msg);
err = spi_sync_locked(spi, &msg);
if (err) {
esp_dbg(ESP_DBG_ERROR, "%s: failed, error: %d\n",
__func__, err);
return err;
}
return 0;
}
int sif_spi_read_raw(struct spi_device *spi, unsigned char* buf, int size)
{
memset(buf,0xff,size);
return sif_spi_write_async_read(spi,buf,buf,size);
}
int sif_spi_write_bytes(struct spi_device *spi, unsigned int addr, unsigned char *src,int count, int dummymode)
{
int i;
int pos,len;
unsigned char *tx_data = (unsigned char*)src;
int err_ret = 0;
u32 timeout = 200;
spi_resp.data_resp_size_w = ((((((count>>5)+1) *75)) +44)>>3) +1;
if (spi == NULL) {
ESSERT(0);
err_ret = -EINVAL;
goto goto_err;
}
if(count > 512 )
{
err_ret = -1;
goto goto_err;
}
tx_cmd[0]=0x75;
if( addr >= (1<<17) )
{
err_ret = -2;
goto goto_err;
}
else
{
tx_cmd[1]=0x90|0x04|(addr>>15); //0x94;
tx_cmd[2]=addr>>7;
if(count == 512 )
{
tx_cmd[3]=( addr<<1|0x0 );
tx_cmd[4]= 0x00; //0x08;
}
else
{
tx_cmd[3]=( addr<<1|(count>>8 & 0x01) );
tx_cmd[4]= count & 0xff; //0x08;
}
}
tx_cmd[5]=0x01;
pos = 5+1;
//Add cmd respon
memset(tx_cmd+pos,0xff,CMD_RESP_SIZE);
pos =pos+ CMD_RESP_SIZE;
//Add token
tx_cmd[pos]=0xFE;
pos = pos+1;
//Add data
memcpy(tx_cmd+pos,tx_data,count);
pos = pos+count;
//Add data respon
memset(tx_cmd+pos,0xff,spi_resp.data_resp_size_w);
pos = pos+ spi_resp.data_resp_size_w ;
if(pos <128)
{
len = 128-pos;
memset(tx_cmd+pos,0xff,len);
}
else
{
if( pos%8 )
{
len = (8 - pos%8);
memset(tx_cmd+pos,0xff,len);
}
else
len = 0;
}
sif_spi_write_async_read(spi, tx_cmd,tx_cmd,pos+len);
pos = 5+1;
for(i=0;i<CMD_RESP_SIZE;i++)
{
if(tx_cmd[pos+i] == 0x00 && tx_cmd[pos+i-1] == 0xff)
{
if(tx_cmd[pos+i+1] == 0x00 && tx_cmd[pos+i+2] == 0xff)
break;
}
}
if(i>spi_resp.max_cmd_resp_size)
{
spi_resp.max_cmd_resp_size = i;
}
if(i>=CMD_RESP_SIZE)
{
esp_dbg(ESP_DBG_ERROR, "byte write cmd resp 0x00 no recv\n");
err_ret = -3;
goto goto_err;
}
pos = pos+CMD_RESP_SIZE+count+1;
for(i=0;i<spi_resp.data_resp_size_w;i++)
{
if(tx_cmd[pos+i] == 0xE5)
{
//esp_dbg(ESP_DBG_ERROR, "0xE5 pos:%d",i);
for(i++;i<spi_resp.data_resp_size_w ;i++)
{
if( tx_cmd[pos+i] == 0xFF)
{
// esp_dbg(ESP_DBG_ERROR, "find ff pos = %d,i = %d\n",pos+i,i);
if(i>spi_resp.max_dataW_resp_size)
{
spi_resp.max_dataW_resp_size = i;
// printk(KERN_ERR "new data write MAX 0xFF pos:%d",spi_resp.max_dataW_resp_size);
}
//esp_dbg(ESP_DBG_ERROR, "0xFF pos:%d",i);
break;
}
}
break;
}
}
if(i>=spi_resp.data_resp_size_w)
{
if(dummymode == 0)
esp_dbg(ESP_DBG, "normal byte write data no-busy wait byte 0xff no recv at the first time\n");
timeout = 200;
do {
timeout --;
//memset(check_buf,0x00,256);
sif_spi_read_raw(spi, check_buf, 256);
} while( memcmp(check_buf,ff_buf,256) != 0 && timeout >0 ) ;
if(timeout == 0)
{
esp_dbg(ESP_DBG_ERROR, "spierr byte write data no-busy wait byte 0xff no recv \n");
err_ret = -4;
goto goto_err;
}
}
goto_err:
return err_ret;
}
int sif_spi_write_blocks(struct spi_device *spi, unsigned int addr,unsigned char *src, int count)
{
int err_ret = 0;
int i,j;
int n;
int pos,len;
unsigned char *tx_data = (unsigned char*)src;
int find_w_rsp = 0;
int timeout = 200;
if (spi == NULL) {
ESSERT(0);
err_ret = -EINVAL;
goto goto_err;
}
tx_cmd[0]=0x75;
if( count <=0 )
{
err_ret = -1;
goto goto_err;
}
if( addr >= (1<<17) )
{
err_ret = -2;
goto goto_err;
}
else
{
tx_cmd[1]=0x90|0x0C|(addr>>15);
tx_cmd[2]=addr>>7;
if(count >= 512 )
{
tx_cmd[3]=( addr<<1|0x0 );
tx_cmd[4]= 0x00;
}
else
{
tx_cmd[3]=( addr<<1|(count>>8 & 0x01) );
tx_cmd[4]= count & 0xff ;
}
}
tx_cmd[5]=0x01;
pos = 5+1;
//Add cmd respon
memset(tx_cmd+pos,0xff,CMD_RESP_SIZE);
pos =pos+ CMD_RESP_SIZE;
if(count < 3)
{
for(j=0;j<count;j++)
{
//Add token
tx_cmd[pos]=0xFC;
pos = pos+1;
//Add data
memcpy(tx_cmd+pos,tx_data+j*SPI_BLOCK_SIZE, SPI_BLOCK_SIZE);
pos = pos+SPI_BLOCK_SIZE;
//Add data respon
if( j==(count- 1) )
{
memset(tx_cmd+pos , 0xff , spi_resp.block_w_data_resp_size_final);
pos = pos+ spi_resp.block_w_data_resp_size_final;
continue;
}
memset(tx_cmd+pos , 0xff , BLOCK_W_DATA_RESP_SIZE_EACH);
pos = pos+ BLOCK_W_DATA_RESP_SIZE_EACH;
}
if( pos%8 )
{
len = (8 - pos%8);
memset(tx_cmd+pos,0xff,len);
}
else
len = 0;
sif_spi_write_async_read(spi, tx_cmd,tx_cmd,pos+len);
//Judge Write cmd resp, and 1st block data resp.
pos = 5+1;
for(i=0;i<CMD_RESP_SIZE;i++)
{
if(tx_cmd[pos+i] == 0x00 && tx_cmd[pos+i-1] == 0xff)
{
if(tx_cmd[pos+i+1] == 0x00 && tx_cmd[pos+i+2] == 0xff)
break;
}
}
if(i>spi_resp.max_cmd_resp_size)
{
spi_resp.max_cmd_resp_size = i;
}
if(i>=CMD_RESP_SIZE)
{
esp_dbg(ESP_DBG_ERROR, "spierr 1st block write cmd resp 0x00 no recv, %d\n", count);
err_ret = -3;
goto goto_err;
}
pos = pos+CMD_RESP_SIZE;
for(j=0;j<count;j++)
{
find_w_rsp = 0;
//Judge block data resp
pos = pos+1;
pos = pos+SPI_BLOCK_SIZE;
if( j==(count-1) )
n = spi_resp.block_w_data_resp_size_final;
else
n= BLOCK_W_DATA_RESP_SIZE_EACH;
for(i =0 ;i<4;i++)
{
if((tx_cmd[pos+i] & 0x0F) == 0x05)
{
find_w_rsp = 1;
break;
}
}
if(find_w_rsp == 1)
{
if(memcmp(tx_cmd+pos+n-4,ff_buf,4) != 0)
{
esp_dbg(ESP_DBG, "block write sleep 1\n");
if(j == count-1)
{
timeout = 200;
do {
timeout --;
//memset(check_buf,0x00,256);
sif_spi_read_raw(spi, check_buf, 256);
} while( memcmp(check_buf,ff_buf,256) != 0 && timeout >0 ) ;
if(timeout == 0)
{
err_ret = -7;
esp_dbg(ESP_DBG_ERROR, "spierr block write data no-busy wait byte 0xff no recv \n");
goto goto_err;
}
}
else
{
err_ret = -5;
esp_dbg(ESP_DBG_ERROR, "spierr %s block%d write data not-busy wait error, %d\n", __func__, j+1, count);
goto goto_err;
}
}
}
else
{
err_ret = -6;
esp_dbg(ESP_DBG_ERROR, "spierr %s block%d write data no data res error, %d\n", __func__, j+1, count);
goto goto_err;
}
pos = pos+n;
}
}
else
{
for(j=0;j<2;j++)
{
//Add token
tx_cmd[pos]=0xFC;
pos = pos+1;
//Add data
memcpy(tx_cmd+pos,tx_data+j*SPI_BLOCK_SIZE, SPI_BLOCK_SIZE);
pos = pos+SPI_BLOCK_SIZE;
memset(tx_cmd+pos , 0xff , BLOCK_W_DATA_RESP_SIZE_EACH);
pos = pos+ BLOCK_W_DATA_RESP_SIZE_EACH;
}
if( pos%8 )
{
len = (8 - pos%8);
memset(tx_cmd+pos,0xff,len);
}
else
len = 0;
sif_spi_write_async_read(spi, tx_cmd,tx_cmd,pos+len);
//Judge Write cmd resp, and 1st block data resp.
pos = 5+1;
for(i=0;i<CMD_RESP_SIZE;i++)
{
if(tx_cmd[pos+i] == 0x00 && tx_cmd[pos+i-1] == 0xff)
{
if(tx_cmd[pos+i+1] == 0x00 && tx_cmd[pos+i+2] == 0xff)
break;
}
}
if(i>spi_resp.max_cmd_resp_size)
{
spi_resp.max_cmd_resp_size = i;
}
if(i>=CMD_RESP_SIZE)
{
esp_dbg(ESP_DBG_ERROR, "spierr 1st block write cmd resp 0x00 no recv, %d\n", count);
err_ret = -3;
goto goto_err;
}
pos = pos+CMD_RESP_SIZE;
for(j=0;j<2;j++)
{
find_w_rsp = 0;
//Judge block data resp
pos = pos+1;
pos = pos+SPI_BLOCK_SIZE;
n = BLOCK_W_DATA_RESP_SIZE_EACH;
for(i =0 ;i<4;i++)
{
if((tx_cmd[pos+i] & 0x0F) == 0x05)
{
find_w_rsp = 1;
break;
}
}
if(find_w_rsp == 1)
{
if(memcmp(tx_cmd+pos+n-4,ff_buf,4) != 0 )
{
esp_dbg(ESP_DBG, "block write data during sleep \n");
if(j == 1)
{
timeout = 200;
do {
timeout --;
sif_spi_read_raw(spi, check_buf, 256);
} while( memcmp(check_buf,ff_buf,256) != 0 && timeout >0 ) ;
if(timeout == 0)
{
err_ret = -7;
esp_dbg(ESP_DBG_ERROR, "spierr block write data no-busy wait byte 0xff no recv \n");
goto goto_err;
}
}
else
{
err_ret = -5;
esp_dbg(ESP_DBG_ERROR, "spierr %s block%d write data not-busy wait error, %d\n", __func__, j+1, count);
goto goto_err;
}
}
}
else
{
err_ret = -6;
esp_dbg(ESP_DBG_ERROR, "spierr %s block%d write data no data res error, %d\n", __func__, j+1, count);
goto goto_err;
}
pos = pos+n;
}
pos = 0;
for(j=2;j<count;j++)
{
//Add token
tx_cmd[pos]=0xFC;
pos = 1+pos ;
//Add data
memcpy(tx_cmd+pos,tx_data+j*SPI_BLOCK_SIZE, SPI_BLOCK_SIZE);
pos = pos+SPI_BLOCK_SIZE;
//Add data respon
if(j == count-1)
{
memset(tx_cmd+pos , 0xff ,spi_resp.block_w_data_resp_size_final);
pos = pos+spi_resp.block_w_data_resp_size_final;
continue;
}
memset(tx_cmd+pos , 0xff , BLOCK_W_DATA_RESP_SIZE_EACH);
pos = pos+ BLOCK_W_DATA_RESP_SIZE_EACH;
}
if( pos%8 )
{
len = (8 - pos%8);
memset(tx_cmd+pos,0xff,len);
}
else
len = 0;
sif_spi_write_async_read(spi, tx_cmd,tx_cmd,pos+len);
pos = 0;
for(j=2;j<count;j++)
{
find_w_rsp = 0;
//Judge block data resp
pos = pos+1;
pos = pos+SPI_BLOCK_SIZE;
if( j==(count-1) )
n = spi_resp.block_w_data_resp_size_final;
else
n= BLOCK_W_DATA_RESP_SIZE_EACH;
for(i =0 ;i<4;i++)
{
if((tx_cmd[pos+i] & 0x0F) == 0x05)
{
find_w_rsp = 1;
break;
}
}
if(find_w_rsp == 1)
{
if(memcmp(tx_cmd+pos+n-4,ff_buf,4) != 0)
{
err_ret = -5;
esp_dbg(ESP_DBG_ERROR, "spierr %s block%d write data not-busy wait error, %d\n", __func__, j+1, count);
goto goto_err;
}
}
else
{
err_ret = -6;
esp_dbg(ESP_DBG_ERROR, "spierr %s block%d write data no data res error, %d\n", __func__, j+1, count);
goto goto_err;
}
pos = pos+n;
}
}
goto_err:
return err_ret;
}
int sif_spi_write_mix_nosync(struct spi_device *spi, unsigned int addr, unsigned char *buf, int len, int dummymode)
{
int blk_cnt;
int remain_len;
int err;
do {
blk_cnt = len/SPI_BLOCK_SIZE;
remain_len = len%SPI_BLOCK_SIZE;
if (blk_cnt > 0) {
err = sif_spi_write_blocks(spi, addr, buf, blk_cnt);
if (err)
return err;
}
if (remain_len > 0) {
err = sif_spi_write_bytes(spi, addr, (buf + (blk_cnt*SPI_BLOCK_SIZE)), remain_len, dummymode);
if (err)
return err;
}
} while(0);
return 0;
}
int sif_spi_write_mix_sync(struct spi_device *spi, unsigned int addr, unsigned char *buf, int len, int dummymode)
{
int err;
spi_bus_lock(spi->master);
err = sif_spi_write_mix_nosync(spi, addr, buf, len, dummymode);
spi_bus_unlock(spi->master);
return err;
}
int sif_spi_epub_write_mix_nosync(struct esp_pub *epub, unsigned int addr, unsigned char *buf,int len, int dummymode)
{
struct esp_spi_ctrl *sctrl = NULL;
struct spi_device *spi = NULL;
if (epub == NULL) {
ESSERT(0);
return -EINVAL;
}
sctrl = (struct esp_spi_ctrl *)epub->sif;
spi = sctrl->spi;
if (spi == NULL) {
ESSERT(0);
return -EINVAL;
}
return sif_spi_write_mix_nosync(spi, addr, buf, len, dummymode);
}
int sif_spi_epub_write_mix_sync(struct esp_pub *epub, unsigned int addr, unsigned char *buf,int len, int dummymode)
{
struct esp_spi_ctrl *sctrl = NULL;
struct spi_device *spi = NULL;
if (epub == NULL) {
ESSERT(0);
return -EINVAL;
}
sctrl = (struct esp_spi_ctrl *)epub->sif;
spi = sctrl->spi;
if (spi == NULL) {
ESSERT(0);
return -EINVAL;
}
return sif_spi_write_mix_sync(spi, addr, buf, len, dummymode);
}
int sif_spi_read_bytes(struct spi_device *spi, unsigned int addr,unsigned char *dst, int count, int dummymode)
{
int pos,total_num,len;
int i;
unsigned char *rx_data = (unsigned char *)dst;
int err_ret = 0;
unsigned short crc = 0;
char test_crc[2];
int unexp_byte = 0;
u32 timeout = 200;
int find_start_token = 0;
spi_resp.data_resp_size_r = ((((((count>>2)+1) *25)>>5)*21+16)>>3) +1 ;
if (spi == NULL) {
ESSERT(0);
err_ret = -EINVAL;
goto goto_err;
}
rx_cmd[0]=0x75;
if(count > 512 )
{
err_ret = -1;
goto goto_err;
}
if( addr >= (1<<17) )
{
err_ret = -2;
goto goto_err;
}
else
{
rx_cmd[1]=0x10|0x04|(addr>>15); //0x94;
rx_cmd[2]=addr>>7;
if(count == 512 )
{
rx_cmd[3]=( addr<<1|0x0 );
rx_cmd[4]= 0x00; //0x08;
}
else
{
rx_cmd[3]=( addr<<1|(count>>8 & 0x01) );
rx_cmd[4]= count & 0xff; //0x08;
}
}
rx_cmd[5]=0x01;
total_num = CMD_RESP_SIZE+spi_resp.data_resp_size_r+count+2;
memset(rx_cmd+6 , 0xFF ,total_num);
if(6+total_num <128)
{
len =128 -6 -total_num;
memset(rx_cmd+6+total_num,0xff,len);
}
else
{
if( (6+total_num)%8 )
{
len = (8 - (6+total_num)%8);
memset(rx_cmd+6+total_num,0xff,len);
}
else
len = 0;
}
sif_spi_write_async_read(spi, rx_cmd,rx_cmd,6+total_num+len);
pos = 5+1;
for(i=0;i<CMD_RESP_SIZE;i++)
{
if(rx_cmd[pos+i] == 0x00 && rx_cmd[pos+i-1] == 0xff)
{
if(rx_cmd[pos+i+1] == 0x00 && rx_cmd[pos+i+2] == 0xff)
break;
}
}
if(i>spi_resp.max_cmd_resp_size)
{
spi_resp.max_cmd_resp_size = i;
//printk(KERN_ERR "new cmd write MAX 0xFF pos:%d",spi_resp.max_cmd_resp_size);
}
if(i>=CMD_RESP_SIZE)
{
esp_dbg(ESP_DBG_ERROR, "spierr byte read cmd resp 0x00 no recv\n");
/***********error info************************/
/*
char t = pos;
while ( t < pos+32) {
printk(KERN_ERR "rx:[0x%02x] ", rx_cmd[t]);
t++;
if ((t-pos)%8 == 0)
printk(KERN_ERR "\n");
}
*/
err_ret = -3;
goto goto_err;
}
//esp_dbg(ESP_DBG_ERROR, "0x00 pos:%d",pos+i);
pos = pos+i+2;
for(i=0;i<spi_resp.data_resp_size_r;i++)
{
if(rx_cmd[pos+i]==0xFE)
{
find_start_token = 1;
if(i>spi_resp.max_dataR_resp_size)
{
spi_resp.max_dataR_resp_size = i;
//printk(KERN_ERR "new data read MAX 0xFE pos:%d",spi_resp.max_dataR_resp_size);
}
break;
}
else if(rx_cmd[pos+i] != 0xff)
{
unexp_byte ++;
if(unexp_byte == 1)
esp_dbg(ESP_DBG, " 1 normal byte read not 0xFF or 0xFE at the first time,count = %d,addr =%x \n",count,addr);
}
}
if(find_start_token == 0)
{
if(dummymode == 0)
esp_dbg(ESP_DBG, " normal byte read start token 0xFE not recv at the first time,count = %d,addr =%x \n",count,addr);
pos = pos +spi_resp.data_resp_size_r;
for(i=0;i< 6+total_num+len-pos;i++)
{
if(rx_cmd[pos+i]==0xFE)
{
sif_spi_read_raw(spi,rx_cmd,((count+4)>256)?(count+4):256);
// sif_spi_read_raw(spi, check_buf, 256);
find_start_token = 1;
err_ret = -4;
goto goto_err;
}
else if(rx_cmd[pos+i] !=0xff)
{
unexp_byte ++;
if(unexp_byte == 1)
esp_dbg(ESP_DBG, "2 normal byte read not 0xFF or 0xFE at the first time,count = %d,addr =%x \n",count,addr);
}
}
timeout = 200;
do {
timeout --;
sif_spi_read_raw(spi, check_buf, 256);
for(i=0;i<256;i++)
{
if(check_buf[i] ==0xFE)
{
find_start_token = 1;
sif_spi_read_raw(spi,rx_cmd,((count+4)>256)?(count+4):256);
break;
}
}
} while( find_start_token != 1 && timeout >0 ) ;
if(timeout == 0)
{
esp_dbg(ESP_DBG_ERROR, "spierr byte read start token 0xFE no recv ,count = %d,addr =%x \n",count,addr);
}
err_ret = -5;
goto goto_err;
}
//esp_dbg(ESP_DBG_ERROR, "0xFE pos:%d",pos+i);
pos = pos+i+1;
memcpy(rx_data,rx_cmd+pos,count);
crc = crc_cal_by_byte(rx_data,count);
test_crc[0] = crc & 0xff;
test_crc[1] = (crc >>8) &0xff ;
if(test_crc[1] != rx_cmd[pos+count] || test_crc[0] != rx_cmd[pos+count+1] )
{