--- a/lib/unigraphic/SPI8.cpp Fri Sep 23 21:12:43 2016 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,209 +0,0 @@
- /* mbed UniGraphic library - SPI8 protocol class
- * Copyright (c) 2015 Giuliano Dianda
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * Derived work of:
- *
- * mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller
- * Copyright (c) 2013 Peter Drescher - DC2PD
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "SPI8.h"
-
-
-SPI8::SPI8(int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC)
- : _CS(CS), _spi(mosi, miso, sclk), _reset(reset), _DC(DC)
-{
- _reset = 1;
- _DC=1;
- _CS=1;
- _spi.format(8,0); // 8 bit spi mode 0
- _spi.frequency(Hz);
- hw_reset();
-}
-
-void SPI8::wr_cmd8(unsigned char cmd)
-{
- _DC.write(0); // 0=cmd
- _spi.write(cmd); // write 8bit
- _DC.write(1); // 1=data next
-}
-void SPI8::wr_data8(unsigned char data)
-{
- _spi.write(data); // write 8bit
-}
-
-void SPI8::wr_cmd16(unsigned short cmd)
-{
- _DC.write(0); // 0=cmd
- _spi.write(cmd>>8); // write 8bit
- _spi.write(cmd&0xFF); // write 8bit
- _DC.write(1); // 1=data next
-}
-void SPI8::wr_data16(unsigned short data)
-{
- _spi.write(data>>8); // write 8bit
- _spi.write(data&0xFF); // write 8bit
-}
-void SPI8::wr_gram(unsigned short data)
-{
- _spi.write(data>>8); // write 8bit
- _spi.write(data&0xFF); // write 8bit
-}
-void SPI8::wr_gram(unsigned short data, unsigned int count)
-{
- if((data>>8)==(data&0xFF))
- {
- count<<=1;
- while(count)
- {
- _spi.write(data); // write 8bit
- count--;
- }
- }
- else
- {
- while(count)
- {
- _spi.write(data>>8); // write 8bit
- _spi.write(data&0xFF); // write 8bit
- count--;
- }
- }
-}
-void SPI8::wr_grambuf(unsigned short* data, unsigned int lenght)
-{
- while(lenght)
- {
- _spi.write((*data)>>8); // write 8bit
- _spi.write((*data)&0xFF); // write 8bit
- data++;
- lenght--;
- }
-}
-unsigned short SPI8::rd_gram(bool convert)
-{
- unsigned int r=0;
- _spi.write(0); // whole first byte is dummy
- r |= _spi.write(0);
- r <<= 8;
- r |= _spi.write(0);
- if(convert)
- {
- r <<= 8;
- r |= _spi.write(0);
- // gram is 18bit/pixel, if you set 16bit/pixel (cmd 3A), during writing the 16bits are expanded to 18bit
- // during reading, you read the raw 18bit gram
- r = RGB24to16((r&0xFF0000)>>16, (r&0xFF00)>>8, r&0xFF);// 18bit pixel padded to 24bits, rrrrrr00_gggggg00_bbbbbb00, converted to 16bit
- }
- _CS = 1; // force CS HIG to interupt the "read state"
- _CS = 0;
- return (unsigned short)r;
-}
-unsigned int SPI8::rd_reg_data32(unsigned char reg)
-{
- wr_cmd8(reg);
- unsigned int r=0;
-
- r |= _spi.write(0); // we get only 7bit valid, first bit was the dummy cycle
- r <<= 8;
- r |= _spi.write(0);
- r <<= 8;
- r |= _spi.write(0);
- r <<= 8;
- r |= _spi.write(0);
- r <<= 1; // 32bits are aligned, now collecting bit_0
- r |= (_spi.write(0) >> 7);
- // we clocked 7 more bit so ILI waiting for 8th, we need to reset spi bus
- _CS = 1; // force CS HIG to interupt the cmd
- _CS = 0;
- return r;
-}
-unsigned int SPI8::rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd)
-{
- unsigned int r=0;
- for(int regparam=1; regparam<4; regparam++) // when reading EXTC regs, first parameter is always dummy, so start with 1
- {
- wr_cmd8(SPIreadenablecmd); // spi-in enable cmd, 0xD9 (ili9341) or 0xFB (ili9488) or don't know
- wr_data8(0xF0|regparam); // in low nibble specify which reg parameter we want
- wr_cmd8(reg); // now send cmd (select register we want to read)
- r <<= 8;
- r |= _spi.write(0);
- // r = _spi.write(0) >> 8; for 16bit
- }
- _CS = 1; // force CS HIG to interupt the cmd
- _CS = 0;
- return r;
-}
-// ILI932x specific
-void SPI8::dummyread()
-{
- _spi.write(0); // dummy read
-}
-// ILI932x specific
-void SPI8::reg_select(unsigned char reg, bool forread)
-{
- _CS = 1; //fixme: really needed?
- _CS = 0; //fixme: really needed?
- _spi.write(0x70);
- _spi.write(0); // write MSB
- _spi.write(reg); // write LSB
- _CS = 1; //fixme: really needed?
- _CS = 0; //fixme: really needed?
- if(forread) _spi.write(0x73);
- else _spi.write(0x72);
-}
-// ILI932x specific
-void SPI8::reg_write(unsigned char reg, unsigned short data)
-{
- _CS = 1; //fixme: really needed?
- _CS = 0; //fixme: really needed?
- _spi.write(0x70);
- _spi.write(0); // write MSB
- _spi.write(reg); // write LSB
- _CS = 1; //fixme: really needed?
- _CS = 0; //fixme: really needed?
- _spi.write(0x72);
- _spi.write(data>>8);
- _spi.write(data&0xFF);
-}
-// ILI932x specific
-unsigned short SPI8::reg_read(unsigned char reg)
-{
- unsigned short r=0;
- _CS = 1; //fixme: really needed?
- _CS = 0; //fixme: really needed?
- _spi.write(0x70);
- _spi.write(0); // write MSB
- _spi.write(reg); // write LSB
- _CS = 1; //fixme: really needed?
- _CS = 0; //fixme: really needed?
- _spi.write(0x73);
- _spi.write(0); // dummy read
- r = _spi.write(0); // read 8bit
- r <<= 8;
- r |= _spi.write(0); // read 8bit
- return r;
-}
-void SPI8::hw_reset()
-{
- wait_ms(15);
- _DC = 1;
- _CS = 1;
- _reset = 0; // display reset
- wait_ms(2);
- _reset = 1; // end reset
- wait_ms(100);
-}
-void SPI8::BusEnable(bool enable)
-{
- _CS = enable ? 0:1;
-}