From 8bde7f776c77b343aca29b8c7b58464d915ac245 Mon Sep 17 00:00:00 2001 From: wdenk Date: Fri, 27 Jun 2003 21:31:46 +0000 Subject: * Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen) --- cpu/at91rm9200/at45.c | 114 ++++++++++++++++++++++++-------------------------- 1 file changed, 55 insertions(+), 59 deletions(-) (limited to 'cpu/at91rm9200/at45.c') diff --git a/cpu/at91rm9200/at45.c b/cpu/at91rm9200/at45.c index e0057e79af..cf456fb4a5 100644 --- a/cpu/at91rm9200/at45.c +++ b/cpu/at91rm9200/at45.c @@ -45,7 +45,7 @@ void AT91F_SpiInit(void) { /* Reset the SPI */ AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST; - /* Configure SPI in Master Mode with No CS selected !!! */ + /* Configure SPI in Master Mode with No CS selected !!! */ AT91C_BASE_SPI->SPI_MR = AT91C_SPI_MSTR | AT91C_SPI_MODFDIS | AT91C_SPI_PCS; /* Configure CS0 and CS3 */ @@ -83,38 +83,38 @@ void AT91F_SpiEnable(int cs) { /*----------------------------------------------------------------------------*/ unsigned int AT91F_SpiWrite ( AT91PS_DataflashDesc pDesc ) { - unsigned int timeout; + unsigned int timeout; pDesc->state = BUSY; - AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS; + AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS; - /* Initialize the Transmit and Receive Pointer */ - AT91C_BASE_SPI->SPI_RPR = (unsigned int)pDesc->rx_cmd_pt ; - AT91C_BASE_SPI->SPI_TPR = (unsigned int)pDesc->tx_cmd_pt ; + /* Initialize the Transmit and Receive Pointer */ + AT91C_BASE_SPI->SPI_RPR = (unsigned int)pDesc->rx_cmd_pt ; + AT91C_BASE_SPI->SPI_TPR = (unsigned int)pDesc->tx_cmd_pt ; - /* Intialize the Transmit and Receive Counters */ - AT91C_BASE_SPI->SPI_RCR = pDesc->rx_cmd_size; - AT91C_BASE_SPI->SPI_TCR = pDesc->tx_cmd_size; + /* Intialize the Transmit and Receive Counters */ + AT91C_BASE_SPI->SPI_RCR = pDesc->rx_cmd_size; + AT91C_BASE_SPI->SPI_TCR = pDesc->tx_cmd_size; if ( pDesc->tx_data_size != 0 ) { - /* Initialize the Next Transmit and Next Receive Pointer */ - AT91C_BASE_SPI->SPI_RNPR = (unsigned int)pDesc->rx_data_pt ; + /* Initialize the Next Transmit and Next Receive Pointer */ + AT91C_BASE_SPI->SPI_RNPR = (unsigned int)pDesc->rx_data_pt ; AT91C_BASE_SPI->SPI_TNPR = (unsigned int)pDesc->tx_data_pt ; /* Intialize the Next Transmit and Next Receive Counters */ AT91C_BASE_SPI->SPI_RNCR = pDesc->rx_data_size ; - AT91C_BASE_SPI->SPI_TNCR = pDesc->tx_data_size ; - } + AT91C_BASE_SPI->SPI_TNCR = pDesc->tx_data_size ; + } - /* arm simple, non interrupt dependent timer */ + /* arm simple, non interrupt dependent timer */ reset_timer_masked(); timeout = 0; AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTEN + AT91C_PDC_RXTEN; while(!(AT91C_BASE_SPI->SPI_SR & AT91C_SPI_RXBUFF) && ((timeout = get_timer_masked() ) < CFG_SPI_WRITE_TOUT)); - AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS; - pDesc->state = IDLE; + AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS; + pDesc->state = IDLE; if (timeout >= CFG_SPI_WRITE_TOUT){ printf("Error Timeout\n\r"); @@ -181,12 +181,12 @@ AT91S_DataFlashStatus AT91F_DataFlashGetStatus(AT91PS_DataflashDesc pDesc) pDesc->command[1] = 0; pDesc->DataFlash_state = GET_STATUS; - pDesc->tx_data_size = 0 ; /* Transmit the command and receive response */ - pDesc->tx_cmd_pt = pDesc->command ; - pDesc->rx_cmd_pt = pDesc->command ; - pDesc->rx_cmd_size = 2 ; - pDesc->tx_cmd_size = 2 ; - status = AT91F_SpiWrite (pDesc); + pDesc->tx_data_size = 0 ; /* Transmit the command and receive response */ + pDesc->tx_cmd_pt = pDesc->command ; + pDesc->rx_cmd_pt = pDesc->command ; + pDesc->rx_cmd_size = 2 ; + pDesc->tx_cmd_size = 2 ; + status = AT91F_SpiWrite (pDesc); pDesc->DataFlash_state = *( (unsigned char *) (pDesc->rx_cmd_pt) +1); @@ -215,7 +215,6 @@ AT91S_DataFlashStatus AT91F_DataFlashWaitReady(AT91PS_DataflashDesc pDataFlashDe } - /*------------------------------------------------------------------------------*/ /* Function Name : AT91F_DataFlashContinuousRead */ /* Object : Continuous stream Read */ @@ -226,7 +225,7 @@ AT91S_DataFlashStatus AT91F_DataFlashWaitReady(AT91PS_DataflashDesc pDataFlashDe /* Return value : State of the dataflash */ /*------------------------------------------------------------------------------*/ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead ( - AT91PS_DataFlash pDataFlash, + AT91PS_DataFlash pDataFlash, int src, unsigned char *dataBuffer, int sizeToRead ) @@ -245,7 +244,6 @@ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead ( } - /*------------------------------------------------------------------------------*/ /* Function Name : AT91F_DataFlashPagePgmBuf */ /* Object : Main memory page program through buffer 1 or buffer 2 */ @@ -289,13 +287,12 @@ AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert( return DATAFLASH_BAD_COMMAND; /* no data to transmit or receive */ - pDataFlash->pDataFlashDesc->tx_data_size = 0; + pDataFlash->pDataFlashDesc->tx_data_size = 0; return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, 4, page*pDataFlash->pDevice->pages_size)); } - /*----------------------------------------------------------------------------- */ /* Function Name : AT91F_DataFlashWriteBuffer */ /* Object : Write data to the internal sram buffer 1 or 2 */ @@ -324,24 +321,24 @@ AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer ( if ( (pDataFlash->pDataFlashDesc->state) != IDLE) return DATAFLASH_BUSY; - /* Send first Write Command */ - pDataFlash->pDataFlashDesc->command[0] = BufferCommand; + /* Send first Write Command */ + pDataFlash->pDataFlashDesc->command[0] = BufferCommand; pDataFlash->pDataFlashDesc->command[1] = 0; - pDataFlash->pDataFlashDesc->command[2] = (unsigned char)(((unsigned int)(bufferAddress & pDataFlash->pDevice->byte_mask)) >> 8) ; - pDataFlash->pDataFlashDesc->command[3] = (unsigned char)((unsigned int)bufferAddress & 0x00FF) ; + pDataFlash->pDataFlashDesc->command[2] = (unsigned char)(((unsigned int)(bufferAddress & pDataFlash->pDevice->byte_mask)) >> 8) ; + pDataFlash->pDataFlashDesc->command[3] = (unsigned char)((unsigned int)bufferAddress & 0x00FF) ; - pDataFlash->pDataFlashDesc->tx_cmd_pt = pDataFlash->pDataFlashDesc->command ; - pDataFlash->pDataFlashDesc->tx_cmd_size = 4 ; - pDataFlash->pDataFlashDesc->rx_cmd_pt = pDataFlash->pDataFlashDesc->command ; - pDataFlash->pDataFlashDesc->rx_cmd_size = 4 ; + pDataFlash->pDataFlashDesc->tx_cmd_pt = pDataFlash->pDataFlashDesc->command ; + pDataFlash->pDataFlashDesc->tx_cmd_size = 4 ; + pDataFlash->pDataFlashDesc->rx_cmd_pt = pDataFlash->pDataFlashDesc->command ; + pDataFlash->pDataFlashDesc->rx_cmd_size = 4 ; - pDataFlash->pDataFlashDesc->rx_data_pt = dataBuffer ; - pDataFlash->pDataFlashDesc->tx_data_pt = dataBuffer ; - pDataFlash->pDataFlashDesc->rx_data_size = SizeToWrite ; - pDataFlash->pDataFlashDesc->tx_data_size = SizeToWrite ; + pDataFlash->pDataFlashDesc->rx_data_pt = dataBuffer ; + pDataFlash->pDataFlashDesc->tx_data_pt = dataBuffer ; + pDataFlash->pDataFlashDesc->rx_data_size = SizeToWrite ; + pDataFlash->pDataFlashDesc->tx_data_size = SizeToWrite ; - return AT91F_SpiWrite(pDataFlash->pDataFlashDesc); + return AT91F_SpiWrite(pDataFlash->pDataFlashDesc); } @@ -404,7 +401,6 @@ AT91S_DataFlashStatus AT91F_PartialPageWrite ( } - /*------------------------------------------------------------------------------*/ /* Function Name : AT91F_DataFlashWrite_Overloaded */ /* Object : */ @@ -422,11 +418,11 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite( AT91F_SpiEnable(pDataFlash->pDevice->cs); - if ( (dest + size) > (pDataFlash->pDevice->pages_size * (pDataFlash->pDevice->pages_number))) + if ( (dest + size) > (pDataFlash->pDevice->pages_size * (pDataFlash->pDevice->pages_number))) return DATAFLASH_MEMORY_OVERFLOW; - /* If destination does not fit a page start address */ - if ((dest % ((unsigned int)(pDataFlash->pDevice->pages_size))) != 0 ) { + /* If destination does not fit a page start address */ + if ((dest % ((unsigned int)(pDataFlash->pDevice->pages_size))) != 0 ) { length = pDataFlash->pDevice->pages_size - (dest % ((unsigned int)(pDataFlash->pDevice->pages_size))); if (size < length) @@ -438,12 +434,12 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite( AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 1000); /* Update size, source and destination pointers */ - size -= length; - dest += length; - src += length; - } + size -= length; + dest += length; + src += length; + } - while (( size - pDataFlash->pDevice->pages_size ) >= 0 ) { + while (( size - pDataFlash->pDevice->pages_size ) >= 0 ) { /* program dataflash page */ if(!AT91F_DataFlashPagePgmBuf(pDataFlash, src, dest, pDataFlash->pDevice->pages_size )) return DATAFLASH_ERROR; @@ -451,20 +447,20 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite( AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 1000); /* Update size, source and destination pointers */ - size -= pDataFlash->pDevice->pages_size ; - dest += pDataFlash->pDevice->pages_size ; - src += pDataFlash->pDevice->pages_size ; - } + size -= pDataFlash->pDevice->pages_size ; + dest += pDataFlash->pDevice->pages_size ; + src += pDataFlash->pDevice->pages_size ; + } - /* If still some bytes to read */ - if ( size > 0 ) { + /* If still some bytes to read */ + if ( size > 0 ) { /* program dataflash page */ if(!AT91F_PartialPageWrite(pDataFlash, src, dest, size) ) return DATAFLASH_ERROR; AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 1000); } - return DATAFLASH_OK; + return DATAFLASH_OK; } @@ -501,7 +497,7 @@ int AT91F_DataFlashRead( buffer += SizeToRead; } - return DATAFLASH_OK; + return DATAFLASH_OK; } @@ -514,8 +510,8 @@ int AT91F_DataFlashRead( int AT91F_DataflashProbe(int cs, AT91PS_DataflashDesc pDesc) { AT91F_SpiEnable(cs); - AT91F_DataFlashGetStatus(pDesc); - return((pDesc->command[1] == 0xFF)? 0: pDesc->command[1] & 0x3C); + AT91F_DataFlashGetStatus(pDesc); + return((pDesc->command[1] == 0xFF)? 0: pDesc->command[1] & 0x3C); } #endif -- cgit v1.2.3