📄 buxx_drv.c
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/* ************************************************************************ */
/* */
/* ROHM BU15xx demo firmware on MD2306 */
/* Client : ROHM Co., Ltd.丂丂丂丂丂丂 */
/* End User : */
/* */
/* Processor: ARM-7TDMI(THUMB Mode) */
/* Dev.Env. : ARM-SDTv2.51 */
/* */
/* DRIVER:BU15xx control Routines */
/* */
/* file : BUxx_DRV.c */
/* Auther : J.SATO(NTC)丂 */
/* Date : 2004/Jul./1 */
/* */
/* Copyright (c) 2002-04 Naritagiken Co., Ltd. All rights reserved. */
/* ************************************************************************ */
/* ************************************************** */
/* INCLUDE FILES */
/* ************************************************** */
#include "BUxx_setuptable.h"
/* ************************************************** */
/* TYPEDEF */
/* ************************************************** */
/* ************************************************** */
/* LOCAL DEFINES */
/* ************************************************** */
/* ************************************************** */
/* GLOBAL VARIABLE */
/* ************************************************** */
/* ************************************************** */
/* CONST */
/* ************************************************** */
/* ************************************************** */
/* GLOBAL FUNCTIONS */
/* ************************************************** */
/* ************************************************** */
/* LOCAL FUNCTIONS */
/* ************************************************** */
//-----------------------------------------------------------------------------
// register write(8bit access)
//-----------------------------------------------------------------------------
void reg_write8(const UINT16 reg, const UINT16 para)
{
if (BUSACCESS_BIT == 16 || reg == INDEX)
{
//16bit write
*(LCD_CMD_WRITE + reg) = para;
}
else
{
//8bit write
*(LCD_CMD_WRITE + reg) = (para & 0xff00) >> 8;
*(LCD_CMD_WRITE + reg) = (para & 0x00ff);
}
}
//-----------------------------------------------------------------------------
// register read(8bit access)
//-----------------------------------------------------------------------------
UINT16 reg_read8(const UINT16 reg)
{
UINT16 reg_data;
if (BUSACCESS_BIT == 16 || reg == INDEX)
{
//16bit write
reg_data = *(LCD_CMD_WRITE + reg) & 0x00ff;
}
else
{
//8bit write
reg_data = (*(LCD_CMD_WRITE + reg) & 0x00ff) << 8;
reg_data |= (*(LCD_CMD_WRITE + reg) & 0x00ff);
}
return (reg_data);
}
//-----------------------------------------------------------------------------
// index register write + register write(8bit/16bit)
//-----------------------------------------------------------------------------
UINT16 data_write(const UINT16 idx, const UINT16 para)
{
UINT16 reg_temp;
reg_write(INDEX, idx);
reg_temp = reg_read(REG);
reg_write(REG, para);
return (reg_temp);
}
//-----------------------------------------------------------------------------
// bit write(8bit/16bit)
//-----------------------------------------------------------------------------
void bit_write(const UINT16 idx, const UINT16 bit, const UINT16 value)
{
UINT16 reg_data;
reg_data = data_read(idx);
if (value == LOW)
{
reg_data &= ~bit;
reg_write(REG, reg_data);
}
else if (value == HIGH)
{
reg_data |= bit;
reg_write(REG, reg_data);
}
else
{
}
}
//-----------------------------------------------------------------------------
// index register write + register read(8bit/16bit)
//-----------------------------------------------------------------------------
UINT16 data_read(const UINT16 idx)
{
reg_write(INDEX, idx);
return (reg_read(REG));
}
//-----------------------------------------------------------------------------
// bit read(8bit/16bit)
//-----------------------------------------------------------------------------
UINT16 bit_read(const UINT16 idx, const UINT16 bit)
{
UINT16 reg_data;
reg_write(INDEX, idx);
reg_data = reg_read(REG) & bit;
return (reg_data);
}
//-----------------------------------------------------------------------------
// CLOCK CNT setup
//-----------------------------------------------------------------------------
void clk_cnt_set(const UINT16 data)
{
data_write(CLKCNT, LCDFRSRC | data);
}
//-----------------------------------------------------------------------------
// CLOCK DIV1 setup
//-----------------------------------------------------------------------------
int clk_div1_set(const UINT16 sckdv)
{
int err_code = 0;
if (sckdv > maxSCKDV)
err_code = 0x0001;
data_write(CLKDIV1, sckdv);
return err_code;
}
//-----------------------------------------------------------------------------
// CLOCK DIV2 setup
//-----------------------------------------------------------------------------
int clk_div2_set(const UINT16 lcdfrdv, const UINT16 lcdbsytmg)
{
int err_code = 0;
if (lcdfrdv > maxLCDFRDV)
err_code = 0x0001;
if (lcdbsytmg > maxLCDBSYTMG)
err_code = 0x0002;
data_write(CLKDIV2, (lcdbsytmg << 8) | lcdfrdv);
return err_code;
}
//-----------------------------------------------------------------------------
// CLOCK DIV3 setup
//-----------------------------------------------------------------------------
int clk_div3_set(const UINT16 cmckdv)
{
int err_code = 0;
if (cmckdv > maxCMCKDV)
err_code = 0x0001;
data_write(CLKDIV3, cmckdv);
return err_code;
}
//-----------------------------------------------------------------------------
// HWmode write
//-----------------------------------------------------------------------------
void hwmode_write(const UINT16 mode)
{
data_write(HWMODE, sCAM_ON | sCLK_XTL | mode);
}
//-----------------------------------------------------------------------------
// HWmode read
//-----------------------------------------------------------------------------
UINT16 hwmode_read(void)
{
return (bit_read(HWMODE, bHWMODE | bSUSP));
}
//-----------------------------------------------------------------------------
// HOSTcnt write
//-----------------------------------------------------------------------------
void hostcnt_write(const UINT16 write_data)
{
data_write(HOSTCNT, write_data);
}
//-----------------------------------------------------------------------------
// HOSTcnt write
//-----------------------------------------------------------------------------
void hostcnt_bitwrite(const UINT16 write_data, const UINT16 bit)
{
bit_write(HOSTCNT, write_data, bit);
}
//-----------------------------------------------------------------------------
// HOSTcnt read
//-----------------------------------------------------------------------------
UINT16 hostcnt_bitread(const UINT16 read_data)
{
return (bit_read(HOSTCNT, read_data));
}
//-----------------------------------------------------------------------------
// operation mode change
//-----------------------------------------------------------------------------
void mode_change(const int mode)
{
bit_write(CLKCNT, bLCDFREN | bSCKEN, LOW); //LCDFR,SCLK disable
hwmode_write(sREADY); //sSUSPEND
gl_dsc_status = mode;
switch (mode)
{
case sNVIEWER:
case sLCDMANUAL:
hostcnt_bitwrite(bLCDOFF, HIGH);
hostcnt_bitwrite(bLCD_DACS, LOW);
break;
case sSUSPEND:
case sREADY:
hostcnt_bitwrite(bLCDOFF, LOW);
hostcnt_bitwrite(bLCD_DACS, HIGH);
break;
}
hwmode_write(mode); //mode set
bit_write(CLKCNT, bLCDFREN | bSCKEN, HIGH); //LCDFR,SCLK Enable
}
//-----------------------------------------------------------------------------
// Interrupt wait
//-----------------------------------------------------------------------------
void wait_int0(const UINT16 para)
{
gl_check_int = 0;
data_write(INTST, 0x0000); //Interrupt status clear
data_write(INTMSK, (~para) & 0x007f); //lcded_int enable
#if defined BUXX_POLLING
wait(1);
reg_write(INDEX, INTST);
while (reg_read(REG) == 0);
mode_change(sREADY);
#else
while (gl_check_int == 0);
#endif
data_write(INTMSK, 0xffff); //all mask cleared
}
//-----------------------------------------------------------------------------
// JPEG Interrupt wait
//-----------------------------------------------------------------------------
void wait_int0_jpeg(const UINT16 para)
{
gl_check_int = 0;
data_write(JPG_INTST, 0x0000); //Interrupt status clear
data_write(JPG_INTMSK, (~para) & 0x0007); //lcded_int enable
#if defined BUXX_POLLING
{
UINT16 idx_push;
wait(1);
reg_write(INDEX, JPG_INTST);
while (reg_read(REG) == 0);
switch (gl_dsc_status) //William add for BU1563 fm-encode failed 20050508
{
case sJPEGDECODE:
case sLEDMODE:
break;
default:
idx_push = reg_read(INDEX);
mode_change(sREADY);
reg_write(INDEX, idx_push);
break;
}
}
#else
while (gl_check_int == 0);
#endif
data_write(JPG_INTMSK, 0xffff); //all mask cleared
}
//-----------------------------------------------------------------------------
// Camera I/F setup
//-----------------------------------------------------------------------------
void cam_if_set(const UINT16 data)
{
data_write(CAMIF, SUB_OFFSET | data);
}
//-----------------------------------------------------------------------------
// Camera signal frame start position setup
//-----------------------------------------------------------------------------
int cam_tim_set(const UINT16 cxs, const UINT16 cys)
{
int err_code = 0;
if (cxs > maxCXS)
err_code = 0x0001;
if (cys > maxCYS)
err_code = 0x0002;
data_write(CAMTIM, (cys << 8) | cxs);
return err_code;
}
//-----------------------------------------------------------------------------
// Camera image size setup
//-----------------------------------------------------------------------------
int cam_size_set(const UINT16 xsize, const UINT16 ysize)
{
int err_code = 0;
if (xsize > maxCXSIZE)
err_code = 0x0001;
if (ysize > maxCYSIZE)
err_code = 0x0002;
data_write(CXSIZE, xsize);
data_write(CYSIZE, ysize);
return err_code;
}
//-----------------------------------------------------------------------------
// image shrink rate setup
//-----------------------------------------------------------------------------
int cam_shrink_set(const UINT16 cxsrk, const UINT16 cysrk)
{
int err_code = 0;
UINT16 rot_state = 0;
UINT16 hwmode_state = 0;
rot_state = bit_read(MEMCNT, bROT);
hwmode_state = hwmode_read();
if (cxsrk > maxCXSRK)
err_code = 0x0001;
if (cysrk > maxCYSRK)
err_code = 0x0002;
if (rot_state != bROT || hwmode_state == sRINGBUFFER)
{ // ROT90 OFF
data_write(CXSRK, cxsrk);
data_write(CYSRK, cysrk);
}
else
{
data_write(CXSRK, cysrk);
data_write(CYSRK, cxsrk);
}
return err_code;
}
//-----------------------------------------------------------------------------
// The position to cut off an image setup
//-----------------------------------------------------------------------------
int cam_cut_set(const UINT16 st_x, const UINT16 st_y, const UINT16 ed_x,
const UINT16 ed_y)
{
int err_code = 0;
UINT16 rot_state = 0;
UINT16 hwmode_state = 0;
if (st_x > maxCAMRSX)
err_code = 0x0001;
if (st_y > maxCAMRSY)
err_code = 0x0002;
if (ed_x > maxCAMREX)
err_code = 0x0003;
if (ed_y > maxCAMREY)
err_code = 0x0004;
rot_state = bit_read(MEMCNT, bROT);
hwmode_state = hwmode_read();
if (rot_state != bROT || hwmode_state == sRINGBUFFER)
{ // ROT90 OFF
if (st_x % 2)
err_code = 0x0005;
if ((ed_x + 1) % 2)
err_code = 0x0006;
data_write(CAMRSX, st_x);
data_write(CAMREX, ed_x);
data_write(CAMRSY, st_y);
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