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Diffstat (limited to 'target/linux/at91-2.6/image/dfboot/src/mci_device.c')
-rw-r--r--target/linux/at91-2.6/image/dfboot/src/mci_device.c743
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diff --git a/target/linux/at91-2.6/image/dfboot/src/mci_device.c b/target/linux/at91-2.6/image/dfboot/src/mci_device.c
deleted file mode 100644
index cce74a3..0000000
--- a/target/linux/at91-2.6/image/dfboot/src/mci_device.c
+++ /dev/null
@@ -1,743 +0,0 @@
-//*----------------------------------------------------------------------------
-//* ATMEL Microcontroller Software Support - ROUSSET -
-//*----------------------------------------------------------------------------
-//* The software is delivered "AS IS" without warranty or condition of any
-//* kind, either express, implied or statutory. This includes without
-//* limitation any warranty or condition with respect to merchantability or
-//* fitness for any particular purpose, or against the infringements of
-//* intellectual property rights of others.
-//*----------------------------------------------------------------------------
-//* File Name : mci_device.c
-//* Object : TEST DataFlash Functions
-//* Creation : FB 26/11/2002
-//*
-//*----------------------------------------------------------------------------
-
-#include <AT91C_MCI_Device.h>
-#include "stdio.h"
-
-#define AT91C_MCI_TIMEOUT 1000000 /* For AT91F_MCIDeviceWaitReady */
-#define BUFFER_SIZE_MCI_DEVICE 512
-#define MASTER_CLOCK 60000000
-#define FALSE 0
-#define TRUE 1
-
-//* External Functions
-extern void AT91F_ASM_MCI_Handler(void);
-//* Global Variables
-AT91S_MciDeviceFeatures MCI_Device_Features;
-AT91S_MciDeviceDesc MCI_Device_Desc;
-AT91S_MciDevice MCI_Device;
-
-#undef ENABLE_WRITE
-#undef MMC
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_SendCommand
-//* \brief Generic function to send a command to the MMC or SDCard
-//*----------------------------------------------------------------------------
-int AT91F_MCI_SendCommand (
- AT91PS_MciDevice pMCI_Device,
- unsigned int Cmd,
- unsigned int Arg)
-{
- unsigned int error,status;
- //unsigned int tick=0;
-
- // Send the command
- AT91C_BASE_MCI->MCI_ARGR = Arg;
- AT91C_BASE_MCI->MCI_CMDR = Cmd;
-
- // wait for CMDRDY Status flag to read the response
- do
- {
- status = AT91C_BASE_MCI->MCI_SR;
- //tick++;
- }
- while( !(status & AT91C_MCI_CMDRDY) );//&& (tick<100) );
-
- // Test error ==> if crc error and response R3 ==> don't check error
- error = (AT91C_BASE_MCI->MCI_SR) & AT91C_MCI_SR_ERROR;
- if(error != 0 )
- {
- // if the command is SEND_OP_COND the CRC error flag is always present (cf : R3 response)
- if ( (Cmd != AT91C_SDCARD_APP_OP_COND_CMD) && (Cmd != AT91C_MMC_SEND_OP_COND_CMD) )
- return ((AT91C_BASE_MCI->MCI_SR) & AT91C_MCI_SR_ERROR);
- else
- {
- if (error != AT91C_MCI_RCRCE)
- return ((AT91C_BASE_MCI->MCI_SR) & AT91C_MCI_SR_ERROR);
- }
- }
- return AT91C_CMD_SEND_OK;
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_SDCard_SendAppCommand
-//* \brief Specific function to send a specific command to the SDCard
-//*----------------------------------------------------------------------------
-int AT91F_MCI_SDCard_SendAppCommand (
- AT91PS_MciDevice pMCI_Device,
- unsigned int Cmd_App,
- unsigned int Arg )
-{
- unsigned int status;
- //unsigned int tick=0;
-
- // Send the CMD55 for application specific command
- AT91C_BASE_MCI->MCI_ARGR = (pMCI_Device->pMCI_DeviceFeatures->Relative_Card_Address << 16 );
- AT91C_BASE_MCI->MCI_CMDR = AT91C_APP_CMD;
-
- // wait for CMDRDY Status flag to read the response
- do
- {
- status = AT91C_BASE_MCI->MCI_SR;
- //tick++;
- }
- while( !(status & AT91C_MCI_CMDRDY) );//&& (tick<100) );
-
- // if an error occurs
- if (((AT91C_BASE_MCI->MCI_SR) & AT91C_MCI_SR_ERROR) != 0 )
- return ((AT91C_BASE_MCI->MCI_SR) & AT91C_MCI_SR_ERROR);
-
- // check if it is a specific command and then send the command
- if ( (Cmd_App && AT91C_SDCARD_APP_ALL_CMD) == 0)
- return AT91C_CMD_SEND_ERROR;
-
- return( AT91F_MCI_SendCommand(pMCI_Device,Cmd_App,Arg) );
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_GetStatus
-//* \brief Addressed card sends its status register
-//*----------------------------------------------------------------------------
-int AT91F_MCI_GetStatus(AT91PS_MciDevice pMCI_Device,unsigned int relative_card_address)
-{
- if (AT91F_MCI_SendCommand(pMCI_Device,
- AT91C_SEND_STATUS_CMD,
- relative_card_address <<16) == AT91C_CMD_SEND_OK)
- return (AT91C_BASE_MCI->MCI_RSPR[0]);
-
- return AT91C_CMD_SEND_ERROR;
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_Device_Handler
-//* \brief MCI C interrupt handler
-//*----------------------------------------------------------------------------
-void AT91F_MCI_Device_Handler(
- AT91PS_MciDevice pMCI_Device,
- unsigned int status)
-{
- // If End of Tx Buffer Empty interrupt occurred
- if ( status & AT91C_MCI_TXBUFE )
- {
- AT91C_BASE_MCI->MCI_IDR = AT91C_MCI_TXBUFE;
- AT91C_BASE_PDC_MCI->PDC_PTCR = AT91C_PDC_TXTDIS;
-
- pMCI_Device->pMCI_DeviceDesc->state = AT91C_MCI_IDLE;
- } // End of if AT91C_MCI_TXBUFF
-
- // If End of Rx Buffer Full interrupt occurred
- if ( status & AT91C_MCI_RXBUFF )
- {
- AT91C_BASE_MCI->MCI_IDR = AT91C_MCI_RXBUFF;
- AT91C_BASE_PDC_MCI->PDC_PTCR = AT91C_PDC_RXTDIS;
-
- pMCI_Device->pMCI_DeviceDesc->state = AT91C_MCI_IDLE;
- } // End of if AT91C_MCI_RXBUFF
-
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_Handler
-//* \brief MCI Handler
-//*----------------------------------------------------------------------------
-void AT91F_MCI_Handler(void)
-{
- int status;
-
- status = ( AT91C_BASE_MCI->MCI_SR & AT91C_BASE_MCI->MCI_IMR );
-
- AT91F_MCI_Device_Handler(&MCI_Device,status);
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_ReadBlock
-//* \brief Read an ENTIRE block or PARTIAL block
-//*----------------------------------------------------------------------------
-int AT91F_MCI_ReadBlock(
- AT91PS_MciDevice pMCI_Device,
- int src,
- unsigned int *dataBuffer,
- int sizeToRead )
-{
- ////////////////////////////////////////////////////////////////////////////////////////////
- if(pMCI_Device->pMCI_DeviceDesc->state != AT91C_MCI_IDLE)
- return AT91C_READ_ERROR;
-
- if( (AT91F_MCI_GetStatus(pMCI_Device,pMCI_Device->pMCI_DeviceFeatures->Relative_Card_Address) & AT91C_SR_READY_FOR_DATA) != AT91C_SR_READY_FOR_DATA)
- return AT91C_READ_ERROR;
-
- if ( (src + sizeToRead) > pMCI_Device->pMCI_DeviceFeatures->Memory_Capacity )
- return AT91C_READ_ERROR;
-
- // If source does not fit a begin of a block
- if ( (src % pMCI_Device->pMCI_DeviceFeatures->Max_Read_DataBlock_Length) != 0 )
- return AT91C_READ_ERROR;
-
- // Test if the MMC supports Partial Read Block
- // ALWAYS SUPPORTED IN SD Memory Card
- if( (sizeToRead < pMCI_Device->pMCI_DeviceFeatures->Max_Read_DataBlock_Length)
- && (pMCI_Device->pMCI_DeviceFeatures->Read_Partial == 0x00) )
- return AT91C_READ_ERROR;
-
- if( sizeToRead > pMCI_Device->pMCI_DeviceFeatures->Max_Read_DataBlock_Length)
- return AT91C_READ_ERROR;
- ////////////////////////////////////////////////////////////////////////////////////////////
-
- // Init Mode Register
- AT91C_BASE_MCI->MCI_MR |= ((pMCI_Device->pMCI_DeviceFeatures->Max_Read_DataBlock_Length << 16) | AT91C_MCI_PDCMODE);
-
- if (sizeToRead %4)
- sizeToRead = (sizeToRead /4)+1;
- else
- sizeToRead = sizeToRead/4;
-
- AT91C_BASE_PDC_MCI->PDC_PTCR = (AT91C_PDC_TXTDIS | AT91C_PDC_RXTDIS);
- AT91C_BASE_PDC_MCI->PDC_RPR = (unsigned int)dataBuffer;
- AT91C_BASE_PDC_MCI->PDC_RCR = sizeToRead;
-
- // Send the Read single block command
- if ( AT91F_MCI_SendCommand(pMCI_Device, AT91C_READ_SINGLE_BLOCK_CMD, src) != AT91C_CMD_SEND_OK )
- return AT91C_READ_ERROR;
-
- pMCI_Device->pMCI_DeviceDesc->state = AT91C_MCI_RX_SINGLE_BLOCK;
-
- // Enable AT91C_MCI_RXBUFF Interrupt
- AT91C_BASE_MCI->MCI_IER = AT91C_MCI_RXBUFF;
-
- // (PDC) Receiver Transfer Enable
- AT91C_BASE_PDC_MCI->PDC_PTCR = AT91C_PDC_RXTEN;
-
- return AT91C_READ_OK;
-}
-
-
-#ifdef ENABLE_WRITE
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_WriteBlock
-//* \brief Write an ENTIRE block but not always PARTIAL block !!!
-//*----------------------------------------------------------------------------
-int AT91F_MCI_WriteBlock(
- AT91PS_MciDevice pMCI_Device,
- int dest,
- unsigned int *dataBuffer,
- int sizeToWrite )
-{
- ////////////////////////////////////////////////////////////////////////////////////////////
- if( pMCI_Device->pMCI_DeviceDesc->state != AT91C_MCI_IDLE)
- return AT91C_WRITE_ERROR;
-
- if( (AT91F_MCI_GetStatus(pMCI_Device,pMCI_Device->pMCI_DeviceFeatures->Relative_Card_Address) & AT91C_SR_READY_FOR_DATA) != AT91C_SR_READY_FOR_DATA)
- return AT91C_WRITE_ERROR;
-
- if ( (dest + sizeToWrite) > pMCI_Device->pMCI_DeviceFeatures->Memory_Capacity )
- return AT91C_WRITE_ERROR;
-
- // If source does not fit a begin of a block
- if ( (dest % pMCI_Device->pMCI_DeviceFeatures->Max_Read_DataBlock_Length) != 0 )
- return AT91C_WRITE_ERROR;
-
- // Test if the MMC supports Partial Write Block
- if( (sizeToWrite < pMCI_Device->pMCI_DeviceFeatures->Max_Write_DataBlock_Length)
- && (pMCI_Device->pMCI_DeviceFeatures->Write_Partial == 0x00) )
- return AT91C_WRITE_ERROR;
-
- if( sizeToWrite > pMCI_Device->pMCI_DeviceFeatures->Max_Write_DataBlock_Length )
- return AT91C_WRITE_ERROR;
- ////////////////////////////////////////////////////////////////////////////////////////////
-
- // Init Mode Register
- AT91C_BASE_MCI->MCI_MR |= ((pMCI_Device->pMCI_DeviceFeatures->Max_Write_DataBlock_Length << 16) | AT91C_MCI_PDCMODE);
-
- if (sizeToWrite %4)
- sizeToWrite = (sizeToWrite /4)+1;
- else
- sizeToWrite = sizeToWrite/4;
-
- // Init PDC for write sequence
- AT91C_BASE_PDC_MCI->PDC_PTCR = (AT91C_PDC_TXTDIS | AT91C_PDC_RXTDIS);
- AT91C_BASE_PDC_MCI->PDC_TPR = (unsigned int) dataBuffer;
- AT91C_BASE_PDC_MCI->PDC_TCR = sizeToWrite;
-
- // Send the write single block command
- if ( AT91F_MCI_SendCommand(pMCI_Device, AT91C_WRITE_BLOCK_CMD, dest) != AT91C_CMD_SEND_OK)
- return AT91C_WRITE_ERROR;
-
- pMCI_Device->pMCI_DeviceDesc->state = AT91C_MCI_TX_SINGLE_BLOCK;
-
- // Enable AT91C_MCI_TXBUFE Interrupt
- AT91C_BASE_MCI->MCI_IER = AT91C_MCI_TXBUFE;
-
- // Enables TX for PDC transfert requests
- AT91C_BASE_PDC_MCI->PDC_PTCR = AT91C_PDC_TXTEN;
-
- return AT91C_WRITE_OK;
-}
-#endif
-
-#ifdef MMC
-//*------------------------------------------------------------------------------------------------------------
-//* \fn AT91F_MCI_MMC_SelectCard
-//* \brief Toggles a card between the Stand_by and Transfer states or between Programming and Disconnect states
-//*------------------------------------------------------------------------------------------------------------
-int AT91F_MCI_MMC_SelectCard(AT91PS_MciDevice pMCI_Device, unsigned int relative_card_address)
-{
- int status;
-
- //* Check if the MMC card chosen is already the selected one
- status = AT91F_MCI_GetStatus(pMCI_Device,relative_card_address);
-
- if (status < 0)
- return AT91C_CARD_SELECTED_ERROR;
-
- if ((status & AT91C_SR_CARD_SELECTED) == AT91C_SR_CARD_SELECTED)
- return AT91C_CARD_SELECTED_OK;
-
- //* Search for the MMC Card to be selected, status = the Corresponding Device Number
- status = 0;
- while( (pMCI_Device->pMCI_DeviceFeatures[status].Relative_Card_Address != relative_card_address)
- && (status < AT91C_MAX_MCI_CARDS) )
- status++;
-
- if (status > AT91C_MAX_MCI_CARDS)
- return AT91C_CARD_SELECTED_ERROR;
-
- if (AT91F_MCI_SendCommand( pMCI_Device,
- AT91C_SEL_DESEL_CARD_CMD,
- pMCI_Device->pMCI_DeviceFeatures[status].Relative_Card_Address << 16) == AT91C_CMD_SEND_OK)
- return AT91C_CARD_SELECTED_OK;
- return AT91C_CARD_SELECTED_ERROR;
-}
-#endif
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_GetCSD
-//* \brief Asks to the specified card to send its CSD
-//*----------------------------------------------------------------------------
-int AT91F_MCI_GetCSD (AT91PS_MciDevice pMCI_Device, unsigned int relative_card_address , unsigned int * response)
-{
-
- if(AT91F_MCI_SendCommand(pMCI_Device,
- AT91C_SEND_CSD_CMD,
- (relative_card_address << 16)) != AT91C_CMD_SEND_OK)
- return AT91C_CMD_SEND_ERROR;
-
- response[0] = AT91C_BASE_MCI->MCI_RSPR[0];
- response[1] = AT91C_BASE_MCI->MCI_RSPR[1];
- response[2] = AT91C_BASE_MCI->MCI_RSPR[2];
- response[3] = AT91C_BASE_MCI->MCI_RSPR[3];
-
- return AT91C_CMD_SEND_OK;
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_SetBlocklength
-//* \brief Select a block length for all following block commands (R/W)
-//*----------------------------------------------------------------------------
-int AT91F_MCI_SetBlocklength(AT91PS_MciDevice pMCI_Device,unsigned int length)
-{
- return( AT91F_MCI_SendCommand(pMCI_Device, AT91C_SET_BLOCKLEN_CMD, length) );
-}
-
-#ifdef MMC
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_MMC_GetAllOCR
-//* \brief Asks to all cards to send their operations conditions
-//*----------------------------------------------------------------------------
-int AT91F_MCI_MMC_GetAllOCR (AT91PS_MciDevice pMCI_Device)
-{
- unsigned int response =0x0;
-
- while(1)
- {
- response = AT91F_MCI_SendCommand(pMCI_Device,
- AT91C_MMC_SEND_OP_COND_CMD,
- AT91C_MMC_HOST_VOLTAGE_RANGE);
- if (response != AT91C_CMD_SEND_OK)
- return AT91C_INIT_ERROR;
-
- response = AT91C_BASE_MCI->MCI_RSPR[0];
-
- if ( (response & AT91C_CARD_POWER_UP_BUSY) == AT91C_CARD_POWER_UP_BUSY)
- return(response);
- }
-}
-#endif
-
-#ifdef MMC
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_MMC_GetAllCID
-//* \brief Asks to the MMC on the chosen slot to send its CID
-//*----------------------------------------------------------------------------
-int AT91F_MCI_MMC_GetAllCID (AT91PS_MciDevice pMCI_Device, unsigned int *response)
-{
- int Nb_Cards_Found=-1;
-
- while(1)
- {
- if(AT91F_MCI_SendCommand(pMCI_Device,
- AT91C_MMC_ALL_SEND_CID_CMD,
- AT91C_NO_ARGUMENT) != AT91C_CMD_SEND_OK)
- return Nb_Cards_Found;
- else
- {
- Nb_Cards_Found = 0;
- //* Assignation of the relative address to the MMC CARD
- pMCI_Device->pMCI_DeviceFeatures[Nb_Cards_Found].Relative_Card_Address = Nb_Cards_Found + AT91C_FIRST_RCA;
- //* Set the insert flag
- pMCI_Device->pMCI_DeviceFeatures[Nb_Cards_Found].Card_Inserted = AT91C_MMC_CARD_INSERTED;
-
- if (AT91F_MCI_SendCommand(pMCI_Device,
- AT91C_MMC_SET_RELATIVE_ADDR_CMD,
- (Nb_Cards_Found + AT91C_FIRST_RCA) << 16) != AT91C_CMD_SEND_OK)
- return AT91C_CMD_SEND_ERROR;
-
- //* If no error during assignation address ==> Increment Nb_cards_Found
- Nb_Cards_Found++ ;
- }
- }
-}
-#endif
-#ifdef MMC
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_MMC_Init
-//* \brief Return the MMC initialisation status
-//*----------------------------------------------------------------------------
-int AT91F_MCI_MMC_Init (AT91PS_MciDevice pMCI_Device)
-{
- unsigned int tab_response[4];
- unsigned int mult,blocknr;
- unsigned int i,Nb_Cards_Found=0;
-
- //* Resets all MMC Cards in Idle state
- AT91F_MCI_SendCommand(pMCI_Device, AT91C_MMC_GO_IDLE_STATE_CMD, AT91C_NO_ARGUMENT);
-
- if(AT91F_MCI_MMC_GetAllOCR(pMCI_Device) == AT91C_INIT_ERROR)
- return AT91C_INIT_ERROR;
-
- Nb_Cards_Found = AT91F_MCI_MMC_GetAllCID(pMCI_Device,tab_response);
- if (Nb_Cards_Found != AT91C_CMD_SEND_ERROR)
- {
- //* Set the Mode Register
- AT91C_BASE_MCI->MCI_MR = AT91C_MCI_MR_PDCMODE;
-
- for(i = 0; i < Nb_Cards_Found; i++)
- {
- if (AT91F_MCI_GetCSD(pMCI_Device,
- pMCI_Device->pMCI_DeviceFeatures[i].Relative_Card_Address,
- tab_response) != AT91C_CMD_SEND_OK)
- pMCI_Device->pMCI_DeviceFeatures[i].Relative_Card_Address = 0;
- else
- {
- pMCI_Device->pMCI_DeviceFeatures[i].Max_Read_DataBlock_Length = 1 << ((tab_response[1] >> AT91C_CSD_RD_B_LEN_S) & AT91C_CSD_RD_B_LEN_M );
- pMCI_Device->pMCI_DeviceFeatures[i].Max_Write_DataBlock_Length = 1 << ((tab_response[3] >> AT91C_CSD_WBLEN_S) & AT91C_CSD_WBLEN_M );
- pMCI_Device->pMCI_DeviceFeatures[i].Sector_Size = 1 + ((tab_response[2] >> AT91C_CSD_v22_SECT_SIZE_S) & AT91C_CSD_v22_SECT_SIZE_M );
- pMCI_Device->pMCI_DeviceFeatures[i].Read_Partial = (tab_response[1] >> AT91C_CSD_RD_B_PAR_S) & AT91C_CSD_RD_B_PAR_M;
- pMCI_Device->pMCI_DeviceFeatures[i].Write_Partial = (tab_response[3] >> AT91C_CSD_WBLOCK_P_S) & AT91C_CSD_WBLOCK_P_M;
-
- // None in MMC specification version 2.2
- pMCI_Device->pMCI_DeviceFeatures[i].Erase_Block_Enable = 0;
-
- pMCI_Device->pMCI_DeviceFeatures[i].Read_Block_Misalignment = (tab_response[1] >> AT91C_CSD_RD_B_MIS_S) & AT91C_CSD_RD_B_MIS_M;
- pMCI_Device->pMCI_DeviceFeatures[i].Write_Block_Misalignment = (tab_response[1] >> AT91C_CSD_WR_B_MIS_S) & AT91C_CSD_WR_B_MIS_M;
-
- //// Compute Memory Capacity
- // compute MULT
- mult = 1 << ( ((tab_response[2] >> AT91C_CSD_C_SIZE_M_S) & AT91C_CSD_C_SIZE_M_M) + 2 );
- // compute MSB of C_SIZE
- blocknr = ((tab_response[1] >> AT91C_CSD_CSIZE_H_S) & AT91C_CSD_CSIZE_H_M) << 2;
- // compute MULT * (LSB of C-SIZE + MSB already computed + 1) = BLOCKNR
- blocknr = mult * ( ( blocknr + ( (tab_response[2] >> AT91C_CSD_CSIZE_L_S) & AT91C_CSD_CSIZE_L_M) ) + 1 );
-
- pMCI_Device->pMCI_DeviceFeatures[i].Memory_Capacity = pMCI_Device->pMCI_DeviceFeatures[i].Max_Read_DataBlock_Length * blocknr;
- //// End of Compute Memory Capacity
-
- } // end of else
- } // end of for
-
- return AT91C_INIT_OK;
- } // end of if
-
- return AT91C_INIT_ERROR;
-}
-#endif
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_SDCard_GetOCR
-//* \brief Asks to all cards to send their operations conditions
-//*----------------------------------------------------------------------------
-int AT91F_MCI_SDCard_GetOCR (AT91PS_MciDevice pMCI_Device)
-{
- unsigned int response =0x0;
-
- // The RCA to be used for CMD55 in Idle state shall be the card's default RCA=0x0000.
- pMCI_Device->pMCI_DeviceFeatures->Relative_Card_Address = 0x0;
-
- while( (response & AT91C_CARD_POWER_UP_BUSY) != AT91C_CARD_POWER_UP_BUSY )
- {
- response = AT91F_MCI_SDCard_SendAppCommand(pMCI_Device,
- AT91C_SDCARD_APP_OP_COND_CMD,
- AT91C_MMC_HOST_VOLTAGE_RANGE);
- if (response != AT91C_CMD_SEND_OK)
- return AT91C_INIT_ERROR;
-
- response = AT91C_BASE_MCI->MCI_RSPR[0];
- }
-
- return(AT91C_BASE_MCI->MCI_RSPR[0]);
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_SDCard_GetCID
-//* \brief Asks to the SDCard on the chosen slot to send its CID
-//*----------------------------------------------------------------------------
-int AT91F_MCI_SDCard_GetCID (AT91PS_MciDevice pMCI_Device, unsigned int *response)
-{
- if(AT91F_MCI_SendCommand(pMCI_Device,
- AT91C_ALL_SEND_CID_CMD,
- AT91C_NO_ARGUMENT) != AT91C_CMD_SEND_OK)
- return AT91C_CMD_SEND_ERROR;
-
- response[0] = AT91C_BASE_MCI->MCI_RSPR[0];
- response[1] = AT91C_BASE_MCI->MCI_RSPR[1];
- response[2] = AT91C_BASE_MCI->MCI_RSPR[2];
- response[3] = AT91C_BASE_MCI->MCI_RSPR[3];
-
- return AT91C_CMD_SEND_OK;
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_SDCard_SetBusWidth
-//* \brief Set bus width for SDCard
-//*----------------------------------------------------------------------------
-int AT91F_MCI_SDCard_SetBusWidth(AT91PS_MciDevice pMCI_Device)
-{
- volatile int ret_value;
- char bus_width;
-
- do
- {
- ret_value =AT91F_MCI_GetStatus(pMCI_Device,pMCI_Device->pMCI_DeviceFeatures->Relative_Card_Address);
- }
- while((ret_value > 0) && ((ret_value & AT91C_SR_READY_FOR_DATA) == 0));
-
- // Select Card
- AT91F_MCI_SendCommand(pMCI_Device,
- AT91C_SEL_DESEL_CARD_CMD,
- (pMCI_Device->pMCI_DeviceFeatures->Relative_Card_Address)<<16);
-
- // Set bus width for Sdcard
- if(pMCI_Device->pMCI_DeviceDesc->SDCard_bus_width == AT91C_MCI_SCDBUS)
- bus_width = AT91C_BUS_WIDTH_4BITS;
- else bus_width = AT91C_BUS_WIDTH_1BIT;
-
- if (AT91F_MCI_SDCard_SendAppCommand(pMCI_Device,AT91C_SDCARD_SET_BUS_WIDTH_CMD,bus_width) != AT91C_CMD_SEND_OK)
- return AT91C_CMD_SEND_ERROR;
-
- return AT91C_CMD_SEND_OK;
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_SDCard_Init
-//* \brief Return the SDCard initialisation status
-//*----------------------------------------------------------------------------
-int AT91F_MCI_SDCard_Init (AT91PS_MciDevice pMCI_Device)
-{
- unsigned int tab_response[4];
- unsigned int mult,blocknr;
-
- AT91F_MCI_SendCommand(pMCI_Device, AT91C_GO_IDLE_STATE_CMD, AT91C_NO_ARGUMENT);
-
- if(AT91F_MCI_SDCard_GetOCR(pMCI_Device) == AT91C_INIT_ERROR)
- return AT91C_INIT_ERROR;
-
- if (AT91F_MCI_SDCard_GetCID(pMCI_Device,tab_response) == AT91C_CMD_SEND_OK)
- {
- pMCI_Device->pMCI_DeviceFeatures->Card_Inserted = AT91C_SD_CARD_INSERTED;
-
- if (AT91F_MCI_SendCommand(pMCI_Device, AT91C_SET_RELATIVE_ADDR_CMD, 0) == AT91C_CMD_SEND_OK)
- {
- pMCI_Device->pMCI_DeviceFeatures->Relative_Card_Address = (AT91C_BASE_MCI->MCI_RSPR[0] >> 16);
- if (AT91F_MCI_GetCSD(pMCI_Device,pMCI_Device->pMCI_DeviceFeatures->Relative_Card_Address,tab_response) == AT91C_CMD_SEND_OK)
- {
- pMCI_Device->pMCI_DeviceFeatures->Max_Read_DataBlock_Length = 1 << ((tab_response[1] >> AT91C_CSD_RD_B_LEN_S) & AT91C_CSD_RD_B_LEN_M );
- pMCI_Device->pMCI_DeviceFeatures->Max_Write_DataBlock_Length = 1 << ((tab_response[3] >> AT91C_CSD_WBLEN_S) & AT91C_CSD_WBLEN_M );
- pMCI_Device->pMCI_DeviceFeatures->Sector_Size = 1 + ((tab_response[2] >> AT91C_CSD_v21_SECT_SIZE_S) & AT91C_CSD_v21_SECT_SIZE_M );
- pMCI_Device->pMCI_DeviceFeatures->Read_Partial = (tab_response[1] >> AT91C_CSD_RD_B_PAR_S) & AT91C_CSD_RD_B_PAR_M;
- pMCI_Device->pMCI_DeviceFeatures->Write_Partial = (tab_response[3] >> AT91C_CSD_WBLOCK_P_S) & AT91C_CSD_WBLOCK_P_M;
- pMCI_Device->pMCI_DeviceFeatures->Erase_Block_Enable = (tab_response[3] >> AT91C_CSD_v21_ER_BLEN_EN_S) & AT91C_CSD_v21_ER_BLEN_EN_M;
- pMCI_Device->pMCI_DeviceFeatures->Read_Block_Misalignment = (tab_response[1] >> AT91C_CSD_RD_B_MIS_S) & AT91C_CSD_RD_B_MIS_M;
- pMCI_Device->pMCI_DeviceFeatures->Write_Block_Misalignment = (tab_response[1] >> AT91C_CSD_WR_B_MIS_S) & AT91C_CSD_WR_B_MIS_M;
-
- //// Compute Memory Capacity
- // compute MULT
- mult = 1 << ( ((tab_response[2] >> AT91C_CSD_C_SIZE_M_S) & AT91C_CSD_C_SIZE_M_M) + 2 );
- // compute MSB of C_SIZE
- blocknr = ((tab_response[1] >> AT91C_CSD_CSIZE_H_S) & AT91C_CSD_CSIZE_H_M) << 2;
- // compute MULT * (LSB of C-SIZE + MSB already computed + 1) = BLOCKNR
- blocknr = mult * ( ( blocknr + ( (tab_response[2] >> AT91C_CSD_CSIZE_L_S) & AT91C_CSD_CSIZE_L_M) ) + 1 );
-
- pMCI_Device->pMCI_DeviceFeatures->Memory_Capacity = pMCI_Device->pMCI_DeviceFeatures->Max_Read_DataBlock_Length * blocknr;
- //// End of Compute Memory Capacity
- printf("SD-Card: %d Bytes\n\r", pMCI_Device->pMCI_DeviceFeatures->Memory_Capacity);
-
- if( AT91F_MCI_SDCard_SetBusWidth(pMCI_Device) == AT91C_CMD_SEND_OK )
- {
- if (AT91F_MCI_SetBlocklength(pMCI_Device,pMCI_Device->pMCI_DeviceFeatures->Max_Read_DataBlock_Length) == AT91C_CMD_SEND_OK)
- return AT91C_INIT_OK;
- }
- }
- }
- }
- return AT91C_INIT_ERROR;
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_CfgDevice
-//* \brief This function is used to initialise MMC or SDCard Features
-//*----------------------------------------------------------------------------
-void AT91F_CfgDevice(void)
-{
- // Init Device Structure
-
- MCI_Device_Features.Relative_Card_Address = 0;
- MCI_Device_Features.Card_Inserted = AT91C_CARD_REMOVED;
- MCI_Device_Features.Max_Read_DataBlock_Length = 0;
- MCI_Device_Features.Max_Write_DataBlock_Length = 0;
- MCI_Device_Features.Read_Partial = 0;
- MCI_Device_Features.Write_Partial = 0;
- MCI_Device_Features.Erase_Block_Enable = 0;
- MCI_Device_Features.Sector_Size = 0;
- MCI_Device_Features.Memory_Capacity = 0;
-
- MCI_Device_Desc.state = AT91C_MCI_IDLE;
- MCI_Device_Desc.SDCard_bus_width = AT91C_MCI_SCDBUS;
-
- // Init AT91S_DataFlash Global Structure, by default AT45DB choosen !!!
- MCI_Device.pMCI_DeviceDesc = &MCI_Device_Desc;
- MCI_Device.pMCI_DeviceFeatures = &MCI_Device_Features;
-
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCI_Init
-//* \brief Initialsise Card
-//*----------------------------------------------------------------------------
-int AT91F_MCI_Init(void)
-{
-
-///////////////////////////////////////////////////////////////////////////////////////////
-// MCI Init : common to MMC and SDCard
-///////////////////////////////////////////////////////////////////////////////////////////
-
- // Set up PIO SDC_TYPE to switch on MMC/SDCard and not DataFlash Card
- AT91F_PIO_CfgOutput(AT91C_BASE_PIOB,AT91C_PIO_PB7);
- AT91F_PIO_SetOutput(AT91C_BASE_PIOB,AT91C_PIO_PB7);
-
- // Init MCI for MMC and SDCard interface
- AT91F_MCI_CfgPIO();
- AT91F_MCI_CfgPMC();
- AT91F_PDC_Open(AT91C_BASE_PDC_MCI);
-
- // Disable all the interrupts
- AT91C_BASE_MCI->MCI_IDR = 0xFFFFFFFF;
-
- // Init MCI Device Structures
- AT91F_CfgDevice();
-
- // Configure MCI interrupt
- AT91F_AIC_ConfigureIt(AT91C_BASE_AIC,
- AT91C_ID_MCI,
- AT91C_AIC_PRIOR_HIGHEST,
- AT91C_AIC_SRCTYPE_INT_LEVEL_SENSITIVE,
- AT91F_ASM_MCI_Handler);
-
- // Enable MCI interrupt
- AT91F_AIC_EnableIt(AT91C_BASE_AIC,AT91C_ID_MCI);
-
- // Enable Receiver
- AT91F_US_EnableRx((AT91PS_USART) AT91C_BASE_DBGU);
-
- AT91F_MCI_Configure(AT91C_BASE_MCI,
- AT91C_MCI_DTOR_1MEGA_CYCLES,
- AT91C_MCI_MR_PDCMODE, // 15MHz for MCK = 60MHz (CLKDIV = 1)
- AT91C_MCI_SDCARD_4BITS_SLOTA);
-
- if(AT91F_MCI_SDCard_Init(&MCI_Device) != AT91C_INIT_OK)
- return FALSE;
- else
- return TRUE;
-
-}
-
-//*----------------------------------------------------------------------------
-//* \fn AT91F_MCIDeviceWaitReady
-//* \brief Wait for MCI Device ready
-//*----------------------------------------------------------------------------
-void AT91F_MCIDeviceWaitReady(unsigned int timeout)
-{
- volatile int status;
-
- do
- {
- status = AT91C_BASE_MCI->MCI_SR;
- timeout--;
- }
- while( !(status & AT91C_MCI_NOTBUSY) && (timeout>0) );
-}
-
-unsigned int swab32(unsigned int data)
-{
- unsigned int res = 0;
-
- res = (data & 0x000000ff) << 24 |
- (data & 0x0000ff00) << 8 |
- (data & 0x00ff0000) >> 8 |
- (data & 0xff000000) >> 24;
-
- return res;
-}
-
-//*--------------------------------------------------------------------
-//* \fn AT91F_MCI_ReadBlockSwab
-//* \brief Read Block and swap byte order
-//*--------------------------------------------------------------------
-int AT91F_MCI_ReadBlockSwab(
- AT91PS_MciDevice pMCI_Device,
- int src,
- unsigned int *databuffer,
- int sizeToRead)
-{
- int i;
- unsigned char *buf = (unsigned char *)databuffer;
-
- //* Read Block 1
- for(i=0;i<BUFFER_SIZE_MCI_DEVICE;i++)
- *buf++ = 0x00;
- AT91F_MCI_ReadBlock(&MCI_Device,src,databuffer,sizeToRead);
-
- //* Wait end of Read
- AT91F_MCIDeviceWaitReady(AT91C_MCI_TIMEOUT);
-
- {
- int index;
- unsigned int *uiBuffer = databuffer;
-
- for(index = 0; index < 512/4; index++)
- uiBuffer[index] = swab32(uiBuffer[index]);
- }
- return(1);
-}
-
generated by cgit v1.1 at 2024-07-25 00:46:17 +0000