Mirror/betaflight
1
0
Fork 0
mirror of https://github.com/betaflight/betaflight.git synced 2025-07-23 00:05:33 +03:00
Code Issues Wiki Activity

Merge remote-tracking branch 'upstream/master'

Browse source
This commit is contained in:
Marcin Baliniak 2016-09-25 11:57:43 +02:00
commit 419547a2bf
5 changed files with 41 additions and 37 deletions
Download patch file Download diff file Expand all files Collapse all files

53
src/main/drivers/max7456.c
View file

@ -73,14 +73,15 @@ static bool fontIsLoading = false;
static IO_t max7456CsPin = IO_NONE;
static uint8_t max7456_send(uint8_t add, uint8_t data)
static uint8_t max7456Send(uint8_t add, uint8_t data)
{
spiTransferByte(MAX7456_SPI_INSTANCE, add);
return spiTransferByte(MAX7456_SPI_INSTANCE, data);
}
#ifdef MAX7456_DMA_CHANNEL_TX
static void max7456_send_dma(void* tx_buffer, void* rx_buffer, uint16_t buffer_size) {
static void max7456SendDma(void* tx_buffer, void* rx_buffer, uint16_t buffer_size)
{
DMA_InitTypeDef DMA_InitStructure;
#ifdef MAX7456_DMA_CHANNEL_RX
static uint16_t dummy[] = {0xffff};
@ -149,8 +150,8 @@ static void max7456_send_dma(void* tx_buffer, void* rx_buffer, uint16_t buffer_s
SPI_I2S_DMAReq_Tx, ENABLE);
}
void max7456_dma_irq_handler(dmaChannelDescriptor_t* descriptor) {
void max7456_dma_irq_handler(dmaChannelDescriptor_t* descriptor)
{
if (DMA_GET_FLAG_STATUS(descriptor, DMA_IT_TCIF)) {
#ifdef MAX7456_DMA_CHANNEL_RX
DMA_Cmd(MAX7456_DMA_CHANNEL_RX, DISABLE);
@ -220,7 +221,7 @@ void max7456ReInit(void)
videoSignalReg = VIDEO_MODE_NTSC | OSD_ENABLE;
break;
default:
srdata = max7456_send(MAX7456ADD_STAT, 0x00);
srdata = max7456Send(MAX7456ADD_STAT, 0x00);
if ((0x02 & srdata) == 0x02)
videoSignalReg = VIDEO_MODE_NTSC | OSD_ENABLE;
}
@ -235,12 +236,12 @@ void max7456ReInit(void)
// set all rows to same charactor black/white level
for(x = 0; x < maxScreenRows; x++) {
max7456_send(MAX7456ADD_RB0 + x, BWBRIGHTNESS);
max7456Send(MAX7456ADD_RB0 + x, BWBRIGHTNESS);
}
// make sure the Max7456 is enabled
max7456_send(VM0_REG, videoSignalReg);
max7456_send(DMM_REG, CLEAR_DISPLAY);
max7456Send(VM0_REG, videoSignalReg);
max7456Send(DMM_REG, CLEAR_DISPLAY);
DISABLE_MAX7456;
//clear shadow to force redraw all screen in non-dma mode
@ -265,7 +266,7 @@ void max7456Init(uint8_t video_system)
spiSetDivisor(MAX7456_SPI_INSTANCE, SPI_CLOCK_STANDARD);
// force soft reset on Max7456
ENABLE_MAX7456;
max7456_send(VM0_REG, MAX7456_RESET);
max7456Send(VM0_REG, MAX7456_RESET);
DISABLE_MAX7456;
videoSignalCfg = video_system;
@ -308,7 +309,8 @@ bool max7456DmaInProgres(void)
}
#endif
void max7456DrawScreen(void) {
void max7456DrawScreen(void)
{
uint8_t check;
static uint16_t pos = 0;
int k = 0, buff_len=0;
@ -317,7 +319,7 @@ void max7456DrawScreen(void) {
//-----------------detect MAX7456 fail, or initialize it at startup when it is ready--------
max7456Lock = true;
ENABLE_MAX7456;
check = max7456_send(VM0_REG | 0x80, 0x00);
check = max7456Send(VM0_REG | 0x80, 0x00);
DISABLE_MAX7456;
if ( check != videoSignalReg)
@ -348,7 +350,7 @@ void max7456DrawScreen(void) {
if (buff_len) {
#ifdef MAX7456_DMA_CHANNEL_TX
if (buff_len > 0)
max7456_send_dma(spiBuff, NULL, buff_len);
max7456SendDma(spiBuff, NULL, buff_len);
#else
ENABLE_MAX7456;
for (k=0; k < buff_len; k++)
@ -370,24 +372,25 @@ void max7456RefreshAll(void)
uint16_t xx;
max7456Lock = true;
ENABLE_MAX7456;
max7456_send(MAX7456ADD_DMAH, 0);
max7456_send(MAX7456ADD_DMAL, 0);
max7456_send(MAX7456ADD_DMM, 1);
max7456Send(MAX7456ADD_DMAH, 0);
max7456Send(MAX7456ADD_DMAL, 0);
max7456Send(MAX7456ADD_DMM, 1);
for (xx = 0; xx < maxScreenSize; ++xx)
{
max7456_send(MAX7456ADD_DMDI, screenBuffer[xx]);
max7456Send(MAX7456ADD_DMDI, screenBuffer[xx]);
shadowBuffer[xx] = screenBuffer[xx];
}
max7456_send(MAX7456ADD_DMDI, 0xFF);
max7456_send(MAX7456ADD_DMM, 0);
max7456Send(MAX7456ADD_DMDI, 0xFF);
max7456Send(MAX7456ADD_DMM, 0);
DISABLE_MAX7456;
max7456Lock = false;
}
}
void max7456WriteNvm(uint8_t char_address, uint8_t *font_data) {
void max7456WriteNvm(uint8_t char_address, uint8_t *font_data)
{
uint8_t x;
#ifdef MAX7456_DMA_CHANNEL_TX
@ -399,13 +402,13 @@ void max7456WriteNvm(uint8_t char_address, uint8_t *font_data) {
ENABLE_MAX7456;
// disable display
fontIsLoading = true;
max7456_send(VM0_REG, 0);
max7456Send(VM0_REG, 0);
max7456_send(MAX7456ADD_CMAH, char_address); // set start address high
max7456Send(MAX7456ADD_CMAH, char_address); // set start address high
for(x = 0; x < 54; x++) {
max7456_send(MAX7456ADD_CMAL, x); //set start address low
max7456_send(MAX7456ADD_CMDI, font_data[x]);
max7456Send(MAX7456ADD_CMAL, x); //set start address low
max7456Send(MAX7456ADD_CMDI, font_data[x]);
#ifdef LED0_TOGGLE
LED0_TOGGLE;
#else
@ -414,10 +417,10 @@ void max7456WriteNvm(uint8_t char_address, uint8_t *font_data) {
}
// transfer 54 bytes from shadow ram to NVM
max7456_send(MAX7456ADD_CMM, WRITE_NVR);
max7456Send(MAX7456ADD_CMM, WRITE_NVR);
// wait until bit 5 in the status register returns to 0 (12ms)
while ((max7456_send(MAX7456ADD_STAT, 0x00) & STATUS_REG_NVR_BUSY) != 0x00);
while ((max7456Send(MAX7456ADD_STAT, 0x00) & STATUS_REG_NVR_BUSY) != 0x00);
DISABLE_MAX7456;