Add the files.
authorPeter Pearse <peter.pearse@arm.com>
Tue, 14 Aug 2007 09:14:05 +0000 (10:14 +0100)
committerPeter Pearse <peter.pearse@arm.com>
Tue, 14 Aug 2007 09:14:05 +0000 (10:14 +0100)
board/at91rm9200dk/led.c [new file with mode: 0644]
board/at91rm9200dk/mux.c [new file with mode: 0644]
cpu/arm920t/at91rm9200/spi.c [new file with mode: 0644]
drivers/at45.c [new file with mode: 0644]
include/at45.h [new file with mode: 0644]
include/led.h [new file with mode: 0644]

diff --git a/board/at91rm9200dk/led.c b/board/at91rm9200dk/led.c
new file mode 100644 (file)
index 0000000..0518918
--- /dev/null
@@ -0,0 +1,80 @@
+/*
+ * (C) Copyright 2006
+ * Atmel Nordic AB <www.atmel.com>
+ * Ulf Samuelsson <ulf@atmel.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/AT91RM9200.h>
+
+#define        GREEN_LED       AT91C_PIO_PB0
+#define        YELLOW_LED      AT91C_PIO_PB1
+#define        RED_LED AT91C_PIO_PB2
+
+void   green_LED_on(void)
+{
+       AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
+       PIOB->PIO_CODR          = GREEN_LED;
+}
+
+void    yellow_LED_on(void)
+{
+       AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
+       PIOB->PIO_CODR          = YELLOW_LED;
+}
+
+void    red_LED_on(void)
+{
+       AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
+       PIOB->PIO_CODR          = RED_LED;
+}
+
+void   green_LED_off(void)
+{
+       AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
+       PIOB->PIO_SODR          = GREEN_LED;
+}
+
+void   yellow_LED_off(void)
+{
+       AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
+       PIOB->PIO_SODR          = YELLOW_LED;
+}
+
+void   red_LED_off(void)
+{
+       AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
+       PIOB->PIO_SODR          = RED_LED;
+}
+
+
+void LED_init (void)
+{
+       AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
+       AT91PS_PMC      PMC     = AT91C_BASE_PMC;
+       PMC->PMC_PCER           = (1 << AT91C_ID_PIOB); /* Enable PIOB clock */
+       /* Disable peripherals on LEDs */
+       PIOB->PIO_PER           = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0;
+       /* Enable pins as outputs */
+       PIOB->PIO_OER           = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0;
+       /* Turn all LEDs OFF */
+       PIOB->PIO_SODR          = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0;
+}
diff --git a/board/at91rm9200dk/mux.c b/board/at91rm9200dk/mux.c
new file mode 100644 (file)
index 0000000..d573923
--- /dev/null
@@ -0,0 +1,39 @@
+#include <config.h>
+#include <common.h>
+#include <asm/hardware.h>
+#include <dataflash.h>
+
+int AT91F_GetMuxStatus(void) {
+#ifdef DATAFLASH_MMC_SELECT
+       AT91C_BASE_PIOB->PIO_PER = DATAFLASH_MMC_SELECT; /* Set in PIO mode */
+       AT91C_BASE_PIOB->PIO_OER = DATAFLASH_MMC_SELECT; /* Configure in output */
+
+
+       if(AT91C_BASE_PIOB->PIO_ODSR & DATAFLASH_MMC_SELECT) {
+               return 1;
+       } else {
+               return 0;
+       }
+#endif
+       return 0;
+}
+
+void AT91F_SelectMMC(void) {
+#ifdef DATAFLASH_MMC_SELECT
+       AT91C_BASE_PIOB->PIO_PER = DATAFLASH_MMC_SELECT;        /* Set in PIO mode */
+       AT91C_BASE_PIOB->PIO_OER = DATAFLASH_MMC_SELECT;        /* Configure in output */
+       /* Set Output */
+       AT91C_BASE_PIOB->PIO_SODR = DATAFLASH_MMC_SELECT; 
+#endif 
+}
+
+void AT91F_SelectSPI(void) {
+#ifdef DATAFLASH_MMC_SELECT
+       AT91C_BASE_PIOB->PIO_PER = DATAFLASH_MMC_SELECT;        /* Set in PIO mode */
+       AT91C_BASE_PIOB->PIO_OER = DATAFLASH_MMC_SELECT;        /* Configure in output */
+       /* Clear Output */
+       AT91C_BASE_PIOB->PIO_CODR = DATAFLASH_MMC_SELECT; 
+#endif 
+}
+
+
diff --git a/cpu/arm920t/at91rm9200/spi.c b/cpu/arm920t/at91rm9200/spi.c
new file mode 100644 (file)
index 0000000..7469e53
--- /dev/null
@@ -0,0 +1,153 @@
+/* Driver for ATMEL DataFlash support
+ * Author : Hamid Ikdoumi (Atmel)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/hardware.h>
+
+#ifdef CONFIG_HAS_DATAFLASH
+#include <dataflash.h>
+
+#define AT91C_SPI_CLK  10000000        /* Max Value = 10MHz to be compliant to
+                                       the Continuous Array Read function */
+
+/* AC Characteristics */
+/* DLYBS = tCSS = 250ns min and DLYBCT = tCSH = 250ns */
+#define DATAFLASH_TCSS (0xC << 16)
+#define DATAFLASH_TCHS (0x1 << 24)
+
+#define AT91C_TIMEOUT_WRDY             200000
+#define AT91C_SPI_PCS0_SERIAL_DATAFLASH        0xE     /* Chip Select 0: NPCS0%1110 */
+#define AT91C_SPI_PCS3_DATAFLASH_CARD  0x7     /* Chip Select 3: NPCS3%0111 */
+
+/*-------------------------------------------------------------------*/
+/*     SPI DataFlash Init                                           */
+/*-------------------------------------------------------------------*/
+void AT91F_SpiInit(void)
+{
+       /* Configure PIOs */
+       AT91C_BASE_PIOA->PIO_ASR =
+               AT91C_PA3_NPCS0 | AT91C_PA4_NPCS1 | AT91C_PA1_MOSI |
+               AT91C_PA5_NPCS2 | AT91C_PA6_NPCS3 | AT91C_PA0_MISO |
+               AT91C_PA2_SPCK;
+       AT91C_BASE_PIOA->PIO_PDR =
+               AT91C_PA3_NPCS0 | AT91C_PA4_NPCS1 | AT91C_PA1_MOSI |
+               AT91C_PA5_NPCS2 | AT91C_PA6_NPCS3 | AT91C_PA0_MISO |
+               AT91C_PA2_SPCK;
+       /* Enable CLock */
+       AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_SPI;
+
+       /* Reset the SPI */
+       AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST;
+
+       /* 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 */
+       *(AT91C_SPI_CSR + 0) =
+               AT91C_SPI_CPOL | (AT91C_SPI_DLYBS & DATAFLASH_TCSS) |
+               (AT91C_SPI_DLYBCT & DATAFLASH_TCHS) |
+               ((AT91C_MASTER_CLOCK / (2*AT91C_SPI_CLK)) << 8);
+
+       *(AT91C_SPI_CSR + 3) =
+               AT91C_SPI_CPOL | (AT91C_SPI_DLYBS & DATAFLASH_TCSS) |
+               (AT91C_SPI_DLYBCT & DATAFLASH_TCHS) |
+               ((AT91C_MASTER_CLOCK / (2*AT91C_SPI_CLK)) << 8);
+}
+
+void AT91F_SpiEnable(int cs)
+{
+       switch(cs) {
+       case 0: /* Configure SPI CS0 for Serial DataFlash AT45DBxx */
+               AT91C_BASE_SPI->SPI_MR &= 0xFFF0FFFF;
+               AT91C_BASE_SPI->SPI_MR |=
+                       ((AT91C_SPI_PCS0_SERIAL_DATAFLASH<<16) &
+                               AT91C_SPI_PCS);
+               break;
+       case 3: /* Configure SPI CS3 for Serial DataFlash Card */
+               /* Set up PIO SDC_TYPE to switch on DataFlash Card */
+               /* and not MMC/SDCard */
+               AT91C_BASE_PIOB->PIO_PER =
+                       AT91C_PIO_PB7;  /* Set in PIO mode */
+               AT91C_BASE_PIOB->PIO_OER =
+                       AT91C_PIO_PB7;  /* Configure in output */
+               /* Clear Output */
+               AT91C_BASE_PIOB->PIO_CODR = AT91C_PIO_PB7;
+               /* Configure PCS */
+               AT91C_BASE_SPI->SPI_MR &= 0xFFF0FFFF;
+               AT91C_BASE_SPI->SPI_MR |=
+                       ((AT91C_SPI_PCS3_DATAFLASH_CARD<<16) & AT91C_SPI_PCS);
+               break;
+       }
+
+       /* SPI_Enable */
+       AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SPIEN; }
+
+/*---------------------------------------------------------------------------*/
+/* \fn    AT91F_SpiWrite                                                    */
+/* \brief Set the PDC registers for a transfert                                     */
+/*---------------------------------------------------------------------------*/
+unsigned int AT91F_SpiWrite ( AT91PS_DataflashDesc pDesc )
+{
+       unsigned int timeout;
+
+       pDesc->state = BUSY;
+
+       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 ;
+
+       /* 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 ;
+               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 ;
+       }
+
+       /* 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;
+
+       if (timeout >= CFG_SPI_WRITE_TOUT){
+               printf("Error Timeout\n\r");
+               return DATAFLASH_ERROR;
+       }
+
+       return DATAFLASH_OK;
+}
+
+#endif
+
diff --git a/drivers/at45.c b/drivers/at45.c
new file mode 100644 (file)
index 0000000..35c9ecc
--- /dev/null
@@ -0,0 +1,550 @@
+/* Driver for ATMEL DataFlash support
+ * Author : Hamid Ikdoumi (Atmel)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <config.h>
+#include <common.h>
+
+#ifdef CONFIG_HAS_DATAFLASH
+#include <dataflash.h>
+
+
+#define AT91C_TIMEOUT_WRDY                     200000
+
+
+/*----------------------------------------------------------------------*/
+/* \fn    AT91F_DataFlashSendCommand                                   */
+/* \brief Generic function to send a command to the dataflash          */
+/*----------------------------------------------------------------------*/ 
+AT91S_DataFlashStatus AT91F_DataFlashSendCommand(
+       AT91PS_DataFlash pDataFlash,
+       unsigned char OpCode,
+       unsigned int CmdSize,
+       unsigned int DataflashAddress)
+{
+       unsigned int adr;
+
+       if ( (pDataFlash->pDataFlashDesc->state) != IDLE)
+               return DATAFLASH_BUSY;
+
+       /* process the address to obtain page address and byte address */
+       adr = ((DataflashAddress / (pDataFlash->pDevice->pages_size)) << 
+               pDataFlash->pDevice->page_offset) + (DataflashAddress % 
+               (pDataFlash->pDevice->pages_size));
+
+       /* fill the  command  buffer */
+       pDataFlash->pDataFlashDesc->command[0] = OpCode;
+       if (pDataFlash->pDevice->pages_number >= 16384) {
+               pDataFlash->pDataFlashDesc->command[1] = 
+                       (unsigned char)((adr & 0x0F000000) >> 24);
+               pDataFlash->pDataFlashDesc->command[2] = 
+                       (unsigned char)((adr & 0x00FF0000) >> 16);
+               pDataFlash->pDataFlashDesc->command[3] = 
+                       (unsigned char)((adr & 0x0000FF00) >> 8);
+               pDataFlash->pDataFlashDesc->command[4] = 
+                       (unsigned char)(adr & 0x000000FF);
+       } else {
+               pDataFlash->pDataFlashDesc->command[1] = 
+                       (unsigned char)((adr & 0x00FF0000) >> 16);
+               pDataFlash->pDataFlashDesc->command[2] = 
+                       (unsigned char)((adr & 0x0000FF00) >> 8);
+               pDataFlash->pDataFlashDesc->command[3] = 
+                       (unsigned char)(adr & 0x000000FF);
+               pDataFlash->pDataFlashDesc->command[4] = 0;
+       }
+       pDataFlash->pDataFlashDesc->command[5] = 0;
+       pDataFlash->pDataFlashDesc->command[6] = 0;
+       pDataFlash->pDataFlashDesc->command[7] = 0;
+
+       /* Initialize the SpiData structure for the spi write fuction */
+       pDataFlash->pDataFlashDesc->tx_cmd_pt   =  
+               pDataFlash->pDataFlashDesc->command;
+       pDataFlash->pDataFlashDesc->tx_cmd_size =  CmdSize;
+       pDataFlash->pDataFlashDesc->rx_cmd_pt   =  
+               pDataFlash->pDataFlashDesc->command;
+       pDataFlash->pDataFlashDesc->rx_cmd_size =  CmdSize;
+
+       /* send the command and read the data */
+       return AT91F_SpiWrite (pDataFlash->pDataFlashDesc); }
+
+
+/*----------------------------------------------------------------------*/
+/* \fn    AT91F_DataFlashGetStatus                                     */
+/* \brief Read the status register of the dataflash                    */
+/*----------------------------------------------------------------------*/ 
+AT91S_DataFlashStatus AT91F_DataFlashGetStatus(AT91PS_DataflashDesc pDesc) 
+{
+       AT91S_DataFlashStatus status;
+
+       /* if a transfert is in progress ==> return 0 */
+       if( (pDesc->state) != IDLE)
+               return DATAFLASH_BUSY;
+
+       /* first send the read status command (D7H) */
+       pDesc->command[0] = DB_STATUS;
+       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->DataFlash_state = *( (unsigned char *) (pDesc->rx_cmd_pt) +1);
+
+       return status;
+}
+
+
+/*----------------------------------------------------------------------*/
+/* \fn    AT91F_DataFlashWaitReady                                     */
+/* \brief wait for dataflash ready (bit7 of the status register == 1)  */
+/*----------------------------------------------------------------------*/ 
+AT91S_DataFlashStatus AT91F_DataFlashWaitReady(AT91PS_DataflashDesc 
+pDataFlashDesc, unsigned int timeout) 
+{
+       pDataFlashDesc->DataFlash_state = IDLE;
+
+       do {
+               AT91F_DataFlashGetStatus(pDataFlashDesc);
+               timeout--;
+       } while( ((pDataFlashDesc->DataFlash_state & 0x80) != 0x80) && 
+                       (timeout > 0) );
+
+       if((pDataFlashDesc->DataFlash_state & 0x80) != 0x80)
+               return DATAFLASH_ERROR;
+
+       return DATAFLASH_OK;
+}
+
+
+/*--------------------------------------------------------------------------*/
+/* Function Name       : AT91F_DataFlashContinuousRead                             */
+/* Object              : Continuous stream Read                            */
+/* Input Parameters    : DataFlash Service                                 */
+/*                                             : <src> = dataflash address */
+/*                     : <*dataBuffer> = data buffer pointer               */
+/*                     : <sizeToRead> = data buffer size                   */
+/* Return value                : State of the dataflash                            */
+/*--------------------------------------------------------------------------*/ 
+AT91S_DataFlashStatus AT91F_DataFlashContinuousRead (
+       AT91PS_DataFlash pDataFlash,
+       int src,
+       unsigned char *dataBuffer,
+       int sizeToRead )
+{
+       AT91S_DataFlashStatus status;
+       /* Test the size to read in the device */
+       if ( (src + sizeToRead) > 
+               (pDataFlash->pDevice->pages_size * 
+               (pDataFlash->pDevice->pages_number)))
+               return DATAFLASH_MEMORY_OVERFLOW;
+
+       pDataFlash->pDataFlashDesc->rx_data_pt = dataBuffer;
+       pDataFlash->pDataFlashDesc->rx_data_size = sizeToRead;
+       pDataFlash->pDataFlashDesc->tx_data_pt = dataBuffer;
+       pDataFlash->pDataFlashDesc->tx_data_size = sizeToRead;
+
+       status = AT91F_DataFlashSendCommand 
+                       (pDataFlash, DB_CONTINUOUS_ARRAY_READ, 8, src);
+       /* Send the command to the dataflash */
+       return(status);
+}
+
+
+/*---------------------------------------------------------------------------*/
+/* Function Name       : AT91F_DataFlashPagePgmBuf                          */
+/* Object              : Main memory page program thru buffer 1 or buffer 2  */
+/* Input Parameters    : DataFlash Service                                  */
+/*                                             : <*src> = Source buffer     */
+/*                     : <dest> = dataflash destination address                     */
+/*                     : <SizeToWrite> = data buffer size                   */
+/* Return value                : State of the dataflash                             */
+/*---------------------------------------------------------------------------*/ 
+AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf(
+       AT91PS_DataFlash pDataFlash,
+       unsigned char *src,
+       unsigned int dest,
+       unsigned int SizeToWrite)
+{
+       int cmdsize;
+       pDataFlash->pDataFlashDesc->tx_data_pt = src;
+       pDataFlash->pDataFlashDesc->tx_data_size = SizeToWrite;
+       pDataFlash->pDataFlashDesc->rx_data_pt = src;
+       pDataFlash->pDataFlashDesc->rx_data_size = SizeToWrite;
+
+       cmdsize = 4;
+       /* Send the command to the dataflash */
+       if (pDataFlash->pDevice->pages_number >= 16384)
+               cmdsize = 5;
+       return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_PGM_BUF1, 
+cmdsize, dest)); }
+
+
+/*---------------------------------------------------------------------------*/
+/* Function Name       : AT91F_MainMemoryToBufferTransfert                  */
+/* Object              : Read a page in the SRAM Buffer 1 or 2              */
+/* Input Parameters    : DataFlash Service                                  */
+/*                     : Page concerned                                             */
+/*                     :                                                    */
+/* Return value                : State of the dataflash                             */
+/*---------------------------------------------------------------------------*/ 
+AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert(
+       AT91PS_DataFlash pDataFlash,
+       unsigned char BufferCommand,
+       unsigned int page)
+{
+       int cmdsize;
+       /* Test if the buffer command is legal */
+       if ((BufferCommand != DB_PAGE_2_BUF1_TRF) 
+               && (BufferCommand != DB_PAGE_2_BUF2_TRF))
+               return DATAFLASH_BAD_COMMAND;
+
+       /* no data to transmit or receive */
+       pDataFlash->pDataFlashDesc->tx_data_size = 0;
+       cmdsize = 4;
+       if (pDataFlash->pDevice->pages_number >= 16384)
+               cmdsize = 5;
+       return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, cmdsize, 
+page*pDataFlash->pDevice->pages_size));
+}
+
+
+/*-------------------------------------------------------------------------- */
+/* Function Name       : AT91F_DataFlashWriteBuffer                         */
+/* Object              : Write data to the internal sram buffer 1 or 2      */
+/* Input Parameters    : DataFlash Service                                  */
+/*                     : <BufferCommand> = command to write buffer1 or 2    */
+/*                     : <*dataBuffer> = data buffer to write               */
+/*                     : <bufferAddress> = address in the internal buffer    */
+/*                     : <SizeToWrite> = data buffer size                   */
+/* Return value                : State of the dataflash                             */
+/*---------------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer (
+       AT91PS_DataFlash pDataFlash,
+       unsigned char BufferCommand,
+       unsigned char *dataBuffer,
+       unsigned int bufferAddress,
+       int SizeToWrite )
+{
+       int cmdsize;
+       /* Test if the buffer command is legal */
+       if ((BufferCommand != DB_BUF1_WRITE) 
+               && (BufferCommand != DB_BUF2_WRITE))
+               return DATAFLASH_BAD_COMMAND;
+
+       /* buffer address must be lower than page size */
+       if (bufferAddress > pDataFlash->pDevice->pages_size)
+               return DATAFLASH_BAD_ADDRESS;
+
+       if ( (pDataFlash->pDataFlashDesc->state)  != IDLE)
+               return DATAFLASH_BUSY;
+
+       /* Send first Write Command */
+       pDataFlash->pDataFlashDesc->command[0] = BufferCommand;
+       pDataFlash->pDataFlashDesc->command[1] = 0;
+       if (pDataFlash->pDevice->pages_number >= 16384) {
+               pDataFlash->pDataFlashDesc->command[2] = 0;
+               pDataFlash->pDataFlashDesc->command[3] = 
+                       (unsigned char)(((unsigned int)(bufferAddress &  
+                               pDataFlash->pDevice->byte_mask)) >> 8);
+               pDataFlash->pDataFlashDesc->command[4] = 
+                       (unsigned char)((unsigned int)bufferAddress  & 0x00FF);
+               cmdsize = 5;
+       } else {
+               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[4] = 0;
+               cmdsize = 4;
+       }
+
+       pDataFlash->pDataFlashDesc->tx_cmd_pt    = 
+               pDataFlash->pDataFlashDesc->command;
+       pDataFlash->pDataFlashDesc->tx_cmd_size = cmdsize;
+       pDataFlash->pDataFlashDesc->rx_cmd_pt    = 
+               pDataFlash->pDataFlashDesc->command;
+       pDataFlash->pDataFlashDesc->rx_cmd_size = cmdsize;
+
+       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);
+}
+
+/*---------------------------------------------------------------------------*/
+/* Function Name       : AT91F_PageErase                                     */
+/* Object              : Erase a page                                       */
+/* Input Parameters    : DataFlash Service                                  */
+/*                     : Page concerned                                             */
+/*                     :                                                    */
+/* Return value                : State of the dataflash                             */
+/*---------------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_PageErase(
+       AT91PS_DataFlash pDataFlash,
+       unsigned int page)
+{
+       int cmdsize;
+       /* Test if the buffer command is legal */
+       /* no data to transmit or receive */
+       pDataFlash->pDataFlashDesc->tx_data_size = 0;
+
+       cmdsize = 4;
+       if (pDataFlash->pDevice->pages_number >= 16384)
+               cmdsize = 5;
+       return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_ERASE, cmdsize, 
+page*pDataFlash->pDevice->pages_size));
+}
+
+
+/*---------------------------------------------------------------------------*/
+/* Function Name       : AT91F_BlockErase                                    */
+/* Object              : Erase a Block                                              */
+/* Input Parameters    : DataFlash Service                                  */
+/*                     : Page concerned                                             */
+/*                     :                                                    */
+/* Return value                : State of the dataflash                             */
+/*---------------------------------------------------------------------------*/ 
+AT91S_DataFlashStatus AT91F_BlockErase(
+       AT91PS_DataFlash pDataFlash,
+       unsigned int block)
+{
+       int cmdsize;
+       /* Test if the buffer command is legal */
+       /* no data to transmit or receive */
+       pDataFlash->pDataFlashDesc->tx_data_size = 0;
+       cmdsize = 4;
+       if (pDataFlash->pDevice->pages_number >= 16384)
+               cmdsize = 5;
+       return(AT91F_DataFlashSendCommand (pDataFlash, DB_BLOCK_ERASE,cmdsize, 
+block*8*pDataFlash->pDevice->pages_size));
+}
+
+/*---------------------------------------------------------------------------*/
+/* Function Name       : AT91F_WriteBufferToMain                            */
+/* Object              : Write buffer to the main memory                    */
+/* Input Parameters    : DataFlash Service                                  */
+/*             : <BufferCommand> = command to send to buffer1 or buffer2    */
+/*                     : <dest> = main memory address                       */
+/* Return value                : State of the dataflash                             */
+/*---------------------------------------------------------------------------*/ 
+AT91S_DataFlashStatus AT91F_WriteBufferToMain (
+       AT91PS_DataFlash pDataFlash,
+       unsigned char BufferCommand,
+       unsigned int dest )
+{
+       int cmdsize;
+       /* Test if the buffer command is correct */
+       if ((BufferCommand != DB_BUF1_PAGE_PGM) &&
+           (BufferCommand != DB_BUF1_PAGE_ERASE_PGM) &&
+           (BufferCommand != DB_BUF2_PAGE_PGM) &&
+           (BufferCommand != DB_BUF2_PAGE_ERASE_PGM) )
+               return DATAFLASH_BAD_COMMAND;
+
+       /* no data to transmit or receive */
+       pDataFlash->pDataFlashDesc->tx_data_size = 0;
+
+       cmdsize = 4;
+       if (pDataFlash->pDevice->pages_number >= 16384)
+               cmdsize = 5;
+       /* Send the command to the dataflash */
+       return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, cmdsize,
+                                               dest)); }
+
+
+/*---------------------------------------------------------------------------*/
+/* Function Name       : AT91F_PartialPageWrite                                     */
+/* Object              : Erase partielly a page                                     */
+/* Input Parameters    : <page> = page number                               */
+/*                     : <AdrInpage> = adr to begin the fading              */
+/*                     : <length> = Number of bytes to erase                */
+/*---------------------------------------------------------------------------*/ 
+AT91S_DataFlashStatus AT91F_PartialPageWrite (
+       AT91PS_DataFlash pDataFlash,
+       unsigned char *src,
+       unsigned int dest,
+       unsigned int size)
+{
+       unsigned int page;
+       unsigned int AdrInPage;
+
+       page = dest / (pDataFlash->pDevice->pages_size);
+       AdrInPage = dest % (pDataFlash->pDevice->pages_size);
+
+       /* Read the contents of the page in the Sram Buffer */
+       AT91F_MainMemoryToBufferTransfert(pDataFlash, 
+                                               DB_PAGE_2_BUF1_TRF, page);
+       AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 
+                                               AT91C_TIMEOUT_WRDY);
+       /*Update the SRAM buffer */
+       AT91F_DataFlashWriteBuffer(pDataFlash, DB_BUF1_WRITE, src, 
+                                       AdrInPage, size);
+
+       AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 
+                                       AT91C_TIMEOUT_WRDY);
+
+       /* Erase page if a 128 Mbits device */
+       if (pDataFlash->pDevice->pages_number >= 16384) {
+               AT91F_PageErase(pDataFlash, page);
+               /* Rewrite the modified Sram Buffer in the main memory */
+               AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 
+                                               AT91C_TIMEOUT_WRDY);
+       }
+
+       /* Rewrite the modified Sram Buffer in the main memory */
+       return(AT91F_WriteBufferToMain(pDataFlash, DB_BUF1_PAGE_ERASE_PGM, 
+                               (page*pDataFlash->pDevice->pages_size)));
+}
+
+/*---------------------------------------------------------------------------*/
+/* Function Name       : AT91F_DataFlashWrite                               */
+/* Object              :                                                    */
+/* Input Parameters    : <*src> = Source buffer                                     */
+/*                     : <dest> = dataflash adress                          */
+/*                     : <size> = data buffer size                          */
+/*---------------------------------------------------------------------------*/ 
+AT91S_DataFlashStatus AT91F_DataFlashWrite(
+       AT91PS_DataFlash pDataFlash,
+       unsigned char *src,
+       int dest,
+       int size )
+{
+       unsigned int length;
+       unsigned int page;
+       unsigned int status;
+
+       AT91F_SpiEnable(pDataFlash->pDevice->cs);
+
+       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 ) 
+       {
+               length = pDataFlash->pDevice->pages_size - 
+                               (dest % 
+                               ((unsigned int)
+                               (pDataFlash->pDevice->pages_size)));
+
+               if (size < length)
+                       length = size;
+
+               if(!AT91F_PartialPageWrite(pDataFlash,src, dest, length))
+                       return DATAFLASH_ERROR;
+
+               AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 
+                       AT91C_TIMEOUT_WRDY);
+
+               /* Update size, source and destination pointers */
+               size -= length;
+               dest += length;
+               src += length;
+       }
+
+       while (( size - pDataFlash->pDevice->pages_size ) >= 0 ) {
+               /* program dataflash page */
+               page = (unsigned int)dest / (pDataFlash->pDevice->pages_size);
+
+               status = AT91F_DataFlashWriteBuffer(pDataFlash, 
+                               DB_BUF1_WRITE, src, 0, 
+                               pDataFlash->pDevice->pages_size);
+               AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 
+                                               AT91C_TIMEOUT_WRDY);
+
+               status = AT91F_PageErase(pDataFlash, page);
+               AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 
+                                               AT91C_TIMEOUT_WRDY);
+               if (!status)
+                       return DATAFLASH_ERROR;
+
+               status = AT91F_WriteBufferToMain (pDataFlash, 
+                                               DB_BUF1_PAGE_PGM, dest);
+               if(!status)
+                       return DATAFLASH_ERROR;
+
+               AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 
+                                               AT91C_TIMEOUT_WRDY);
+
+               /* Update size, source and destination pointers */
+               size -= pDataFlash->pDevice->pages_size;
+               dest += pDataFlash->pDevice->pages_size;
+               src  += pDataFlash->pDevice->pages_size;
+       }
+
+       /* 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, 
+                                               AT91C_TIMEOUT_WRDY);
+       }
+       return DATAFLASH_OK;
+}
+
+
+/*---------------------------------------------------------------------------*/
+/* Function Name       : AT91F_DataFlashRead                                */
+/* Object              : Read a block in dataflash                          */
+/* Input Parameters    :                                                    */
+/* Return value                :                                                    */
+/*---------------------------------------------------------------------------*/
+int AT91F_DataFlashRead(
+       AT91PS_DataFlash pDataFlash,
+       unsigned long addr,
+       unsigned long size,
+       char *buffer)
+{
+       unsigned long SizeToRead;
+
+       AT91F_SpiEnable(pDataFlash->pDevice->cs);
+
+       if(AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 
+                                       AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
+               return -1;
+
+       while (size) {
+               SizeToRead = (size < 0x8000)? size:0x8000;
+
+               if (AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 
+                                       AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
+                       return -1;
+
+               if (AT91F_DataFlashContinuousRead (pDataFlash, addr, 
+                               (uchar *) buffer, SizeToRead) != DATAFLASH_OK)
+                       return -1;
+
+               size -= SizeToRead;
+               addr += SizeToRead;
+               buffer += SizeToRead;
+       }
+
+       return DATAFLASH_OK;
+}
+
+
diff --git a/include/at45.h b/include/at45.h
new file mode 100644 (file)
index 0000000..1f71a3b
--- /dev/null
@@ -0,0 +1,69 @@
+
+#ifndef        _AT45_H_
+#define        _AT45_H_
+#ifdef DATAFLASH_MMC_SELECT
+extern void AT91F_SelectMMC(void);
+extern void AT91F_SelectSPI(void);
+extern int AT91F_GetMuxStatus(void);
+#endif
+extern void AT91F_SpiInit(void);
+extern void AT91F_SpiEnable(int cs);
+extern unsigned int AT91F_SpiWrite ( AT91PS_DataflashDesc pDesc );
+extern AT91S_DataFlashStatus AT91F_DataFlashSendCommand(
+               AT91PS_DataFlash pDataFlash,
+               unsigned char OpCode,
+               unsigned int CmdSize,
+               unsigned int DataflashAddress);
+extern AT91S_DataFlashStatus AT91F_DataFlashGetStatus (
+       AT91PS_DataflashDesc pDesc);
+extern AT91S_DataFlashStatus AT91F_DataFlashWaitReady (
+       AT91PS_DataflashDesc pDataFlashDesc, 
+       unsigned int timeout);
+extern AT91S_DataFlashStatus AT91F_DataFlashContinuousRead (
+       AT91PS_DataFlash pDataFlash,
+       int src,
+       unsigned char *dataBuffer,
+       int sizeToRead );
+extern AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf(
+       AT91PS_DataFlash pDataFlash,
+       unsigned char *src,
+       unsigned int dest,
+       unsigned int SizeToWrite);
+extern AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert(
+       AT91PS_DataFlash pDataFlash,
+       unsigned char BufferCommand,
+       unsigned int page);
+extern AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer (
+       AT91PS_DataFlash pDataFlash,
+       unsigned char BufferCommand,
+       unsigned char *dataBuffer,
+       unsigned int bufferAddress,
+       int SizeToWrite );
+extern AT91S_DataFlashStatus AT91F_PageErase(
+       AT91PS_DataFlash pDataFlash,
+       unsigned int page);
+extern AT91S_DataFlashStatus AT91F_BlockErase(
+       AT91PS_DataFlash pDataFlash,
+       unsigned int block);
+extern AT91S_DataFlashStatus AT91F_WriteBufferToMain (
+       AT91PS_DataFlash pDataFlash,
+       unsigned char BufferCommand,
+       unsigned int dest );
+extern AT91S_DataFlashStatus AT91F_PartialPageWrite (
+       AT91PS_DataFlash pDataFlash,
+       unsigned char *src,
+       unsigned int dest,
+       unsigned int size);
+extern AT91S_DataFlashStatus AT91F_DataFlashWrite(
+       AT91PS_DataFlash pDataFlash,
+       unsigned char *src,
+       int dest,
+       int size );
+extern int AT91F_DataFlashRead(
+       AT91PS_DataFlash pDataFlash,
+       unsigned long addr,
+       unsigned long size,
+       char *buffer);
+extern int AT91F_DataflashProbe(int cs, AT91PS_DataflashDesc pDesc);
+
+#endif
diff --git a/include/led.h b/include/led.h
new file mode 100644 (file)
index 0000000..a261f1b
--- /dev/null
@@ -0,0 +1,46 @@
+/*
+ * (C) Copyright 2006
+ * Atmel Nordic AB <www.atmel.com>
+ * Ulf Samuelsson <ulf@atmel.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+ #ifndef __LED_H
+#define __LED_H
+
+#ifndef        __ASSEMBLY__
+extern void    LED_init (void);
+extern void    red_LED_on(void);
+extern void    red_LED_off(void);
+extern void    green_LED_on(void);
+extern void    green_LED_off(void);
+extern void    yellow_LED_on(void);
+extern void    yellow_LED_off(void);
+#else
+       .extern LED_init
+       .extern red_LED_on
+       .extern red_LED_off
+       .extern yellow_LED_on
+       .extern yellow_LED_off
+       .extern green_LED_on
+       .extern green_LED_off
+#endif
+#endif
+