diff options
Diffstat (limited to 'board/st/u8500/mmc.c')
| -rw-r--r-- | board/st/u8500/mmc.c | 2594 |
1 files changed, 0 insertions, 2594 deletions
diff --git a/board/st/u8500/mmc.c b/board/st/u8500/mmc.c deleted file mode 100644 index 97508af8d..000000000 --- a/board/st/u8500/mmc.c +++ /dev/null @@ -1,2594 +0,0 @@ -/* - * Copyright (C) ST-Ericsson 2009 - * - * 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 <asm/types.h> -#include <asm/io.h> -#include <asm/errno.h> - -#include <configs/u8500.h> -#include "common.h" -#include "mmc.h" -#include "mmc_p.h" - -#define MAX_NUM_CARDS 5 -t_mmc_register *t_mmc0; /* Removed so it can be used in mmc_utils.c, by Chris S. */ -t_mmc_register *t_mmc4; -t_mmc_register *t_mmc[MAX_NUM_CARDS]; -u32 t_mmc_rel_addr = 0x00010000; -u32 emmc_rel_addr = 0x00100000; -u8 no_of_cards = 0; -u8 mmc_card = 0, sd_card = 0; -u32 clockfreq; -t_mmc_card_info card_array[30]; -t_mmc_device_mode device_mode = POLLING_MODE; -u32 *source_buffer; -u32 *dest_buffer; -u16 total_no_of_bytes = 0; -u8 selected_card = 0; -t_mmc_error transfer_error = MMC_CMD_CRC_FAIL; -u32 pwddata[8]; -t_mmc_event mmc_event; // For event management -u32 write_freq = 0; - -/* Private Functions*/ -t_mmc_error mmc_cmderror(u8); -t_mmc_error mmc_cmdresp145error(u8, u8); -t_mmc_error mmc_cmdresp2error(u8); -t_mmc_error mmc_cmdresp3error(u8); -t_mmc_error mmc_cmdresp6error(u8, u16 *, u8); -t_mmc_error mmc_cmdresp7error(u8); -t_mmc_error mmc_findblocklen(u16 nobytes, u8 * power); -t_mmc_error mmc_sendstatus(u8, u32 *); -t_mmc_error mmc_iscardprogramming(u8, u8 *); - -/****************************************************************************/ -/* NAME : mmc_init() */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine initializes the MMC registers, checks */ -/* Peripheral and PCell Id and clears all interrupts. */ -/* PARAMETERS : */ -/* IN : t_logical_address MMCBaseAddress:MMC registers base address */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error : MMC error code */ -/****************************************************************************/ - -t_mmc_error mmc_init(u8 card_num, t_logical_address MMCBaseAddress) -{ - t_mmc_error error; - if (card_num == 0) - t_mmc0 = (t_mmc_register *) MMCBaseAddress; - else if (card_num == 4) - t_mmc[card_num] = (t_mmc_register *) MMCBaseAddress; - error = MMC_OK; - - return error; -} - -/****************************************************************************/ -/* NAME : mmc_setpowerstate() */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine sets the power status of the controller. */ -/* */ -/* PARAMETERS : */ -/* IN : t_mmc_Power_state Power state to set */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error : MMC error code */ -/****************************************************************************/ -t_mmc_error mmc_setpowerstate(t_mmc_power_state MMCPowerState) -{ - t_mmc_error error; - - MMC_SET_CTRL(t_mmc0->mmc_Power, MMCPowerState); - error = MMC_OK; - - return error; -} - -/****************************************************************************/ -/* NAME : mmc_getpowerstate() */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine returns the power status of the controller. */ -/* */ -/* PARAMETERS : */ -/* IN : t_mmc_Power_state Power state to set */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error : MMC error code */ -/****************************************************************************/ - -t_mmc_power_state mmc_getpowerstate() -{ - t_mmc_power_state state; - state = MMC_READ_BITS(t_mmc0->mmc_Power, MMC_Power_MASK_CTRL, sbMMC_Power_CTRL); - return (state); -} - -/*****************************************************************************/ -/* NAME : mmc_setoperatingvoltage */ -/*-------------------------------------------------------------------------- */ -/* DESCRIPTION: This routine sets the operating voltage range of . */ -/* the controller */ -/* PARAMETERS : */ -/* IN : u8 The encoded value of the output voltage range to set.*/ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error : MMC error code */ -/*****************************************************************************/ - -t_mmc_error mmc_setoperatingvoltage(u8 value) -{ - t_mmc_error error; - if (value < 16) - { - MMC_SET_VOLT(t_mmc0->mmc_Power, value); - error = MMC_OK; - } - else - error = MMC_INVALID_PARAMETER; - return error; -} - -/****************************************************************************/ -/* NAME : mmc_getoperatingvoltage */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine returns the encoded value of the current */ -/* operating voltage range */ -/* PARAMETERS : */ -/* IN : */ -/* OUT : */ -/* */ -/* RETURN : u8 The encoded value of the output voltage range to set*/ -/****************************************************************************/ - -u8 mmc_getoperatingvoltage() -{ - u8 voltage; - voltage = - MMC_READ_BITS(t_mmc0->mmc_Power, MMC_Power_MASK_VOLT,sbMMC_Power_VOLT); - return (voltage); -} - -/****************************************************************************/ -/* NAME : mmc_configbus */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine configures the bus in open drain or . */ -/* push-pull mode */ -/* PARAMETERS : */ -/* IN : t_mmc_bus_configuration Bus configuration to set */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_configbus(t_mmc_bus_configuration busconfig) -{ - t_mmc_error error; - MMC_SET_OPEND(t_mmc0->mmc_Power, busconfig.mode); - MMC_SET_ROD(t_mmc0->mmc_Power, busconfig.rodctrl); - error = MMC_OK; - return error; -} - -/****************************************************************************/ -/* NAME : mmc_setclock */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine sets the clock state as enabled or disabled. */ -/* */ -/* PARAMETERS : */ -/* IN : t_mmc_state clock state to set. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_setclock(t_mmc_state busstate) -{ - t_mmc_error error; - MMC_SET_CENABLE(t_mmc0->mmc_Clock, busstate); - error = MMC_OK; - return error; -} - -/****************************************************************************/ -/* NAME : mmc_configclockcontrol */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine sets configurations for clock and bus mode. */ -/* */ -/* PARAMETERS : */ -/* IN : t_mmc_Clock_control clock control state to set. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_configclockcontrol(t_mmc_clock_control clockcontrol) -{ - t_mmc_error error; - - MMC_SET_PWRSAVE(t_mmc0->mmc_Clock, clockcontrol.pwrsave); - MMC_SET_BYPASS(t_mmc0->mmc_Clock, clockcontrol.bypass); - MMC_SET_WIDEBUS(t_mmc0->mmc_Clock, clockcontrol.widebus); - error = MMC_OK; - - return error; -} - -/****************************************************************************/ -/* NAME : mmc_setclockfrequency */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine sets clock frequency for MMCI controller. */ -/* */ -/* PARAMETERS : */ -/* IN : u8 Clock divider value for desired frequency. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/* COMMENT: Clock frequency is calculated by this formula: */ -/* MCICLK = MCLK/(2 * [Clock_div +1]) */ - -/****************************************************************************/ - -t_mmc_error mmc_setclockfrequency(u8 clockdiv) -{ - t_mmc_error error; - - MMC_SET_CLKDIV(t_mmc0->mmc_Clock, clockdiv); - error = MMC_OK; - - return error; -} - -/****************************************************************************/ -/* NAME : mmc_sendcommand */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine sends command and enable Command path */ -/* state machine. */ -/* PARAMETERS : */ -/* IN : t_mmc_Command_index: Command to send. */ -/* u32: argument to send. */ -/* t_mmc_Command_control: Command control parameters to set. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ - -/****************************************************************************/ - -t_mmc_error mmc_sendcommand(t_mmc_command_index commandindex, u32 argument, - t_mmc_command_control commcontrol) -{ - t_mmc_error error; - u32 reg; - - if (commandindex != MMC_NO_CMD) - { - reg = commandindex; - t_mmc0->mmc_Argument = argument; - reg |= (commcontrol.IsRespExpected << 6); - reg |= (commcontrol.IsLongResp << 7); - reg |= (commcontrol.IsInterruptMode << 8); - reg |= (commcontrol.IsPending << 9); - reg |= (commcontrol.cmdpath << 10); - t_mmc0->mmc_Command = reg; - } - - error = MMC_OK; - return error; -} - -/****************************************************************************/ -/* NAME : mmc_getresponse */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine returns command index of last command for */ -/* which response received. */ -/* PARAMETERS : */ -/* IN : */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_Command_index command index of last command */ - -/****************************************************************************/ - -t_mmc_command_index mmc_getcommandresponse() -{ - t_mmc_command_index respcommand; - respcommand = t_mmc0->mmc_RespCommand; - return respcommand; -} - -/****************************************************************************/ -/* NAME : mmc_getresponse */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine returns response received from the card for */ -/* the last command. */ -/* PARAMETERS : */ -/* IN : t_mmc_response_type Expected response type */ -/* u32 * u32 pointer to store response. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ - -/****************************************************************************/ - -t_mmc_error mmc_getresponse(t_mmc_response_type resptype, u32 * response) -{ - t_mmc_error error; - if (resptype == MMC_SHORT_RESP) - *response = (t_mmc0->mmc_Response0); - else - { - *response = t_mmc0->mmc_Response0; - *(response + 1) = t_mmc0->mmc_Response1; - *(response + 2) = t_mmc0->mmc_Response2; - *(response + 3) = t_mmc0->mmc_Response3; - } - - error = MMC_OK; - return error; - -} - -/****************************************************************************/ -/* NAME : mmc_setdatapath */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine enables/disables the data path for data transfer.*/ -/* */ -/* PARAMETERS : */ -/* IN : t_mmc_state Specifies the state of the */ -/* data path, whether to enabled or disabled. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ - -/****************************************************************************/ - -t_mmc_error mmc_setdatapath(t_mmc_state datapath) -{ - t_mmc_error error; - MMC_SET_DATAPATH(t_mmc0->mmc_DataCtrl, datapath); - error = MMC_OK; - return error; -} - -/****************************************************************************/ -/* NAME : mmc_setdatatimeout */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine sets the data timeout period in card bus */ -/* clock periods */ -/* PARAMETERS : */ -/* IN : u32 Specifies the timeout value of the data path. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ - -/****************************************************************************/ - -t_mmc_error mmc_setdatatimeout(u32 datatimeout) -{ - t_mmc_error error; - t_mmc0->mmc_DataTimer = datatimeout; - error = MMC_OK; - return error; - -} - -/******************************************************************************/ -/* NAME : mmc_setdatalength */ -/*----------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine sets the data length (in bytes) for the data */ -/* transfer. */ -/* PARAMETERS : */ -/* IN : u16 Specifies the number of data bytes to be transferred.*/ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ - -/******************************************************************************/ - -t_mmc_error mmc_setdatalength(u16 datalength) -{ - t_mmc_error error; - - t_mmc0->mmc_DataLength = datalength; - error = MMC_OK; - return error; -} - -/****************************************************************************/ -/* NAME : mmc_setdatablocklength */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine sets the data block size (in an encoded fashion)*/ -/* for block data transfer. */ -/* PARAMETERS : */ -/* IN : u8 Specifies the data block size for block transfer. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ - -/****************************************************************************/ - -t_mmc_error mmc_setdatablocklength(u8 blocksize) -{ - t_mmc_error error; - if (blocksize <= MAXBSIZEPOWER) - { - MMC_SET_BLOCKSIZE(t_mmc0->mmc_DataCtrl, blocksize); - error = MMC_OK; - } - else - error = MMC_INVALID_PARAMETER; - return error; - -} - -/****************************************************************************/ -/* NAME : mmc_settransferdirection */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: routine sets direction for data transfer, whether */ -/* the transfer is a read or write. */ -/* PARAMETERS : */ -/* IN : t_mmc_transfer_direction the direction for data transfer. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ - -/****************************************************************************/ - -t_mmc_error mmc_settransferdirection(t_mmc_transfer_direction transdir) -{ - t_mmc_error error = MMC_OK; - MMC_SET_DATADIR(t_mmc0->mmc_DataCtrl, transdir); - return error; -} - -/******************************************************************************/ -/* NAME : mmc_settransfertype */ -/*----------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine sets whether data transfer is */ -/* in stream mode or block mode. */ -/* PARAMETERS : */ -/* IN : t_mmc_transfer_type Specifies the transfer type for data transfer. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/******************************************************************************/ - -t_mmc_error mmc_settransfertype(t_mmc_transfer_type transtype) -{ - t_mmc_error error = MMC_OK; - MMC_SET_MODE(t_mmc0->mmc_DataCtrl, transtype); - return error; -} - -/****************************************************************************/ -/* NAME : mmc_handledma */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine enables or disables data transfer through DMA. */ -/* PARAMETERS : */ -/* IN : t_mmc_state Specifies whether to enable/disable DMA for */ -/* data transfer. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_handledma(t_mmc_state dmastate) -{ - t_mmc_error error = MMC_OK; - MMC_SET_DMA(t_mmc0->mmc_DataCtrl, dmastate); - return error; -} - -/****************************************************************************/ -/* NAME : mmc_getdatacounter */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine returns number of data elements (in bytes) */ -/* yet to be transferred. */ -/* PARAMETERS : */ -/* IN : */ -/* OUT : */ -/* */ -/* RETURN : u16 */ -/****************************************************************************/ - -u16 mmc_getdatacounter() -{ - u16 no_of_elements; - no_of_elements = t_mmc0->mmc_DataCnt; - return no_of_elements; -} - -/****************************************************************************/ -/* NAME : mmc_selectsdcard */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine selects specific SD card. */ -/* PARAMETERS : */ -/* IN : u8 SD card to select. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_selectsdcard(u8 cardno) -{ - t_mmc_error error; - - if (cardno < 16) - { - t_mmc0->mmc_SelectSD = cardno; - error = MMC_OK; - } - else - error = MMC_REQUEST_NOT_APPLICABLE; - - return error; - -} - -/****************************************************************************/ -/* NAME : mmc_Poweron */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine enquires cards about their operating voltage */ -/* and sets optimal value to supply output voltage. Sends out */ -/* of range cards to inactive states. Also configures */ -/* clock controls. */ -/* PARAMETERS : */ -/* IN : */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_poweron(u8 card_num) -{ - t_mmc_error error = MMC_OK; - u32 response, one_msec, count = 0, delay; - t_bool validvoltage, flag = FALSE; - u32 address_mode = Byte_Mode; - - validvoltage = FALSE; - selected_card = 0; - no_of_cards = 5; - - t_mmc[card_num]->mmc_Power = 0x43; //PowerOn | OpenDrain; - - t_mmc[card_num]->mmc_Clock = 0x41FF; //ClkDivInit| ClkEnable | Hwfc_en;//setting clk freq just less than 400KHz - clockfreq = MCLK / (2 * (ClkDivInit + 1)); - t_mmc[card_num]->mmc_Mask0 &= ~AllInterrupts; - one_msec = 52000 / ((t_mmc[card_num]->mmc_Power & 0xFF) + 2); - - t_mmc[card_num]->mmc_Argument = 0; - t_mmc[card_num]->mmc_Command = (GO_IDLE_STATE & ~RespExpected) | CmdPathEnable; - error = mmc_cmderror(card_num); - if (error != MMC_OK) - return error; - - /* send CMD8 to verify SD card interface operating condition */ - t_mmc[card_num]->mmc_Argument = Check_Pattern; - t_mmc[card_num]->mmc_Command = SD_SEND_IF_COND | RespExpected | CmdPathEnable; - - error = mmc_cmdresp7error(card_num); - /* IF ERROR IS COMMAND TIMEOUT IT IS MMC CARD */ - if (error == MMC_OK) - { - address_mode = Sector_Mode; - } - else - { - t_mmc[card_num]->mmc_Argument = 0; - t_mmc[card_num]->mmc_Command = (GO_IDLE_STATE & ~RespExpected) | CmdPathEnable; - error = mmc_cmderror(card_num); - if (error != MMC_OK) - return error; - } - t_mmc[card_num]->mmc_Argument = 0; - t_mmc[card_num]->mmc_Command = APP_CMD | RespExpected | CmdPathEnable; - -#define barrier() asm volatile("" ::: "memory") - for (delay = 0; delay < (one_msec * 27); delay++) - barrier(); - - error = mmc_cmdresp145error(APP_CMD, card_num); - - /* IF ERROR IS COMMAND TIMEOUT IT IS MMC CARD */ - if (MMC_OK == error) - { - /*SD CARD */ - /*Send CMD41 SD_APP_APP_OP_COND WITH ARGUMENT 0x00FFC000 */ - printf(" initcard:: Set the SD voltage \n"); - while ((!validvoltage) && (count < 0xFFFF)) - { - if (flag) - { - /*SEND CMD55 APP_CMD with RCA as 0*/ - t_mmc[card_num]->mmc_Argument = 0; - t_mmc[card_num]->mmc_Command = APP_CMD | RespExpected | CmdPathEnable; - - error = mmc_cmdresp145error(APP_CMD, card_num); - if (error != MMC_OK) - { - return (error); - } - } - - t_mmc[card_num]->mmc_Argument = VoltageWindowSD | address_mode; /* voltage window */ - t_mmc[card_num]->mmc_Command = SD_APP_OP_COND | RespExpected | CmdPathEnable; - - error = mmc_cmdresp3error(card_num); - if (MMC_OK != error) - { - return (error); - } - - response = t_mmc[card_num]->mmc_Response0; - validvoltage = (t_bool) (((response >> 31) == 1) ? 1 : 0); - flag = TRUE; - count++; - } - - if (count >= 0xFFFF) - { - error = MMC_INVALID_VOLTRANGE; - return (error); - } - - if (Sector_Mode == address_mode) - { - printf(" SD high capacity card detected \n"); - } - else - { - printf(" SD card detected \n"); - } - sd_card = 1; - } - else if (MMC_CMD_RSP_TIMEOUT == error) - { - /*Send CMD0 GO_IDLE_STATE*/ - printf(" initcard:: Set the MMC voltage \n"); - t_mmc[card_num]->mmc_Argument = 0; - t_mmc[card_num]->mmc_Command = (GO_IDLE_STATE & ~RespExpected) | CmdPathEnable; - - error = mmc_cmderror(card_num); - if (MMC_OK != error) - { - return (error); - } - address_mode = Byte_Mode; - validvoltage = FALSE; - response = 0; - - /* MMC_CARD */ - while ((!validvoltage) && (count < 0xFFFF)) - { - t_mmc[card_num]->mmc_Argument = 0xc0ff8000; //VoltageWindowMMC | address_mode; - t_mmc[card_num]->mmc_Command = SEND_OP_COND | RespExpected | CmdPathEnable; - - error = mmc_cmdresp3error(card_num); - if (MMC_OK != error) - { - return (error); - } - - for (delay = 0; delay < 1; delay++) ; - - response = t_mmc[card_num]->mmc_Response0; - validvoltage = (t_bool) (((response >> 31) == 1) ? 1 : 0); - count++; - } - - if (count >= 0xFFFF) - { - error = MMC_INVALID_VOLTRANGE; - return (error); - } - - if (response & Sector_Mode) - { - printf(" MMC high capacity card detected \n"); - } - else - { - printf(" EMMC card detected \n"); - } - mmc_card = 1; - error = MMC_OK; - } - return error; -} - -/****************************************************************************/ -/* NAME : mmc_Poweroff */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine turns the supply output voltage off. */ -/* PARAMETERS : */ -/* IN : */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ -t_mmc_error mmc_poweroff(u8 card_num) -{ - t_mmc_error error = MMC_OK; - t_mmc[card_num]->mmc_Power &= ~PowerOn; - return error; -} - -/****************************************************************************/ -/* NAME : mmc_initializeCards */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine initializes all cards. All cards come into */ -/* standby state. */ -/* PARAMETERS : */ -/* IN : */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_initializeCards(u8 card_num) -{ - t_mmc_error error = MMC_OK; - u16 rca = emmc_rel_addr; - t_bool card_initialized = FALSE; - - if ((t_mmc[card_num]->mmc_Power & PowerOn) == 0x00) - { - printf("emmc power failed \n"); - error = MMC_REQUEST_NOT_APPLICABLE; - return error; - } - while (!card_initialized) - { - t_mmc[card_num]->mmc_Argument = 0x00000000; - t_mmc[card_num]->mmc_Command = ALL_SEND_CID | RespExpected | LongResponse | CmdPathEnable; - - error = mmc_cmdresp2error(card_num); - if (MMC_OK != error) - { - return (error); - } - - card_array[card_num].CID[0] = t_mmc[card_num]->mmc_Response3; - card_array[card_num].CID[1] = t_mmc[card_num]->mmc_Response2; - card_array[card_num].CID[2] = t_mmc[card_num]->mmc_Response1; - card_array[card_num].CID[3] = t_mmc[card_num]->mmc_Response0; - if (mmc_card == 1) - { - printf("init the MMC Card\n"); - t_mmc[card_num]->mmc_Argument = rca;//rca << 16; - t_mmc[card_num]->mmc_Command = SET_REL_ADDR | RespExpected | CmdPathEnable; - - error = mmc_cmdresp145error(SET_REL_ADDR, card_num); - if (error != MMC_OK) - { - printf ("emmc card init response for CMD3 error \n"); - return error; - } - } - else if (sd_card == 1) - { - printf("init the SD Card\n"); - t_mmc[card_num]->mmc_Argument = 0; - t_mmc[card_num]->mmc_Command = SET_REL_ADDR | RespExpected | CmdPathEnable; - - error = mmc_cmdresp6error(SET_REL_ADDR, &rca, card_num); - if (error != MMC_OK) - { - printf ("emmc card init response for CMD6 error \n"); - return error; - } - } - card_array[card_num].RCA = rca; - t_mmc[card_num]->mmc_Argument = rca;//(u32) rca << 16; - t_mmc[card_num]->mmc_Command = SEND_CSD | RespExpected | LongResponse | CmdPathEnable; - - error = mmc_cmdresp2error(card_num); - if (error != MMC_OK) - { - printf("emmc card init response for CMD9 error \n"); - return error; - } - card_array[card_num].CSD[0] = t_mmc[card_num]->mmc_Response3; - card_array[card_num].CSD[1] = t_mmc[card_num]->mmc_Response2; - card_array[card_num].CSD[2] = t_mmc[card_num]->mmc_Response1; - card_array[card_num].CSD[3] = t_mmc[card_num]->mmc_Response0; - - //rca++; - error = MMC_OK; //All cards get intialized - card_initialized = TRUE; - - if (card_num != selected_card) - { - t_mmc[card_num]->mmc_Argument = card_array[card_num].RCA; - t_mmc[card_num]->mmc_Command = SEL_DESEL_CARD - | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SEL_DESEL_CARD, card_num); - - if (error != MMC_OK) - { - printf("SEL_DESEL_CARD ::error=0x%x \n", error); - return error; - } - else - selected_card = card_num; - } - - t_mmc[card_num]->mmc_Argument = (u32) (0x03B70201); - t_mmc[card_num]->mmc_Command = - APP_SD_SET_BUSWIDTH | RespExpected | CmdPathEnable; - - error = mmc_cmdresp2error(card_num); - if (error != MMC_OK) - { - printf("emmc card init response for CMD6 error \n"); - return error; - } - } - t_mmc[card_num]->mmc_Power = 0x3; - t_mmc[card_num]->mmc_Clock = 0x7500; - - /* TODO remove this and use EXT_CSD to determine it */ - if (mmc_card == 1 && t_mmc[card_num] == 0x80005000) - card_array[card_num].blockaddressed = 0; - else - card_array[card_num].blockaddressed = 1; - - return error; -} - -/****************************************************************************/ -/* NAME : mmc_setdevicemode */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine sets device mode whether to operate in Polling,*/ -/* Interrupt, dma mode. */ -/* PARAMETERS : */ -/* IN : t_mmc_device_mode mode to for further transmission. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_setdevicemode(t_mmc_device_mode mode) -{ - t_mmc_error error; - - switch (mode) - { - case POLLING_MODE: - device_mode = POLLING_MODE; - break; - case INTERRUPT_MODE: - device_mode = INTERRUPT_MODE; - break; - case DMA_MODE: - device_mode = DMA_MODE; - break; - default: - error = MMC_INVALID_PARAMETER; - return error; - } - - error = MMC_OK; - return error; -} - -/****************************************************************************/ -/* NAME : mmc_readbytes */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine allows to read bytes from specified address */ -/* in a card */ -/* PARAMETERS : */ -/* IN : u8 cardno: card to access */ -/* u32 addr : address from where to start reading */ -/* u16 no_of_bytes: no. of bytes to read */ -/* OUT : u32* readbuff: buffer to store data */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_readbytes(u8 card_num, u32 addr, u32 * readbuff,u16 no_of_bytes) -{ - t_mmc_error error = MMC_OK; - u32 i; - u32 timeout = 0; - u32 *tempbuff = readbuff; - - total_no_of_bytes = 0; - - t_mmc0->mmc_DataCtrl = AllZero; - - if ((card_num > no_of_cards) || (card_num == 0)) - { - error = MMC_INVALID_PARAMETER; - return error; - } - - /* send command for selecting the card */ - if (card_num != selected_card) - { - t_mmc0->mmc_Argument = card_array[card_num].RCA;//card_array[card_num - 1].RCA << 16; - t_mmc0->mmc_Command = SEL_DESEL_CARD | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SET_REL_ADDR, card_num); - if (error != MMC_OK) - return error; - else - selected_card = card_num; - } - - /* now depending on parameter no_of_bytes, send command READ_DAT_UNTIL_STOP */ - - if (no_of_bytes == 0) // this means open-ended stream read,until STOP_TRANSMISSION follows - { - if (device_mode != INTERRUPT_MODE) - return MMC_REQUEST_NOT_APPLICABLE; - - total_no_of_bytes = 65532; - - t_mmc0->mmc_DataLength = 65532; - - t_mmc0->mmc_DataTimer = 0xefffffff; - - t_mmc0->mmc_DataCtrl = ReadDir | StreamMode | DataPathEnable; - - dest_buffer = readbuff; - - t_mmc0->mmc_Clock = (t_mmc0->mmc_Clock & 0xFFFFFF00) | 0x0000000B; - - t_mmc0->mmc_Argument = addr >> 9; - t_mmc0->mmc_Command = READ_DAT_UNTIL_STOP | RespExpected | CmdPathEnable; - - error = mmc_cmdresp145error(READ_DAT_UNTIL_STOP, card_num); - if (error != MMC_OK) - return error; - - t_mmc0->mmc_Mask0 = DataCrcFail | DataTimeOut | RxFifoHalfFull | RxOverrun; - } - else if (no_of_bytes > 0) - { - total_no_of_bytes = no_of_bytes; - - t_mmc0->mmc_DataLength = no_of_bytes; - - t_mmc0->mmc_DataTimer = 0xefffffff; - - t_mmc0->mmc_DataCtrl = ReadDir | StreamMode | DataPathEnable; - - dest_buffer = readbuff; - - t_mmc0->mmc_Clock = (t_mmc0->mmc_Clock & 0xFFFFFF00) | 0x0000000B; - - t_mmc0->mmc_Argument = addr >> 9; - t_mmc0->mmc_Command = READ_DAT_UNTIL_STOP | RespExpected | CmdPathEnable; - - error = mmc_cmdresp145error(READ_DAT_UNTIL_STOP, card_num); - - if (error != MMC_OK) - return error; - - if (device_mode == POLLING_MODE) - { - - timeout = 0xffffffff; - - while ((timeout > 0) && !(t_mmc0->mmc_Status & (DataCrcFail | DataTimeOut | DataEnd))) - { - timeout--; - if (t_mmc0->mmc_Status & RxFifoHalfFull) - { - for (i = 0; i < 8; i++) - *(tempbuff + i) = t_mmc0->mmc_Fifo; - tempbuff += 8; - } - - } - - if ((timeout == 0) || (t_mmc0->mmc_Status & DataTimeOut)) - { - t_mmc0->mmc_Clear |= DataTimeOut; - error = MMC_DATA_TIMEOUT; - transfer_error = MMC_DATA_TIMEOUT; - return error; - } - else if (t_mmc0->mmc_Status & DataCrcFail) - { - t_mmc0->mmc_Clear |= DataCrcFail; - error = MMC_DATA_CRC_FAIL; - transfer_error = MMC_DATA_CRC_FAIL; - return error; - } - - t_mmc0->mmc_Clear = ClrStaticFlags; //clear all the static status flags - - while (t_mmc0->mmc_Status & RxDataAvlbl) - { - *tempbuff = t_mmc0->mmc_Fifo; - tempbuff++; - } - - t_mmc0->mmc_Argument = 0x00000000; - t_mmc0->mmc_Command = STOP_TRANSMISSION | RespExpected | CmdPathEnable; - - error = mmc_cmdresp145error(STOP_TRANSMISSION, card_num); - - transfer_error = error; - if (error != MMC_OK) - return error; - - } - - else if (device_mode == INTERRUPT_MODE) - t_mmc0->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | RxFifoHalfFull | RxOverrun; - - else if (device_mode == DMA_MODE) - { - t_mmc0->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | RxOverrun; - t_mmc0->mmc_DataCtrl |= DMAEnab; - } - } - return error; -} - -/****************************************************************************/ -/* NAME : mmc_writebytes */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine allows to write bytes starting from a specified*/ -/* address in a card */ -/* PARAMETERS : */ -/* IN : u8 cardno: card to access */ -/* u32 addr : address where to start writing */ -/* u16 no_of_bytes: no. of bytes to write */ -/* OUT : u32* writebuff: source buffer */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_writebytes(u8 card_num, u32 addr, u32 * writebuff, u16 no_of_bytes) -{ - t_mmc_error error; - u32 timeout = 0; - u32 *tempbuff = writebuff; - u32 i, j, bytes_transferred = 0; - u8 cardstate; - - total_no_of_bytes = 0; - - t_mmc0->mmc_DataCtrl = AllZero; - - if ((card_num > no_of_cards) || (card_num == 0)) - { - error = MMC_INVALID_PARAMETER; - return error; - } - /* send command for selecting the card */ - - if (card_num != selected_card) - { - t_mmc0->mmc_Argument = card_array[card_num].RCA;//card_array[card_num - 1].RCA << 16; - t_mmc0->mmc_Command = SEL_DESEL_CARD | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SEL_DESEL_CARD, card_num); - - if (error != MMC_OK) - return error; - else - selected_card = card_num; - } - - /* now depending on parameter no_of_bytes, send command WRITE_DAT_UNTIL_STOP */ - - if (no_of_bytes == 0) // this means open-ended stream read,until STOP_TRANSMISSION follows - { - if (device_mode != INTERRUPT_MODE) - return MMC_REQUEST_NOT_APPLICABLE; - - t_mmc0->mmc_DataTimer = 0xefffffff; - - total_no_of_bytes = 65532; - - t_mmc0->mmc_DataLength = 65532; - - source_buffer = writebuff; - - t_mmc0->mmc_Clock = (t_mmc0->mmc_Clock & 0xFFFFFF00) | 0x00000031; - - t_mmc0->mmc_Argument = addr >> 9; - t_mmc0->mmc_Command = WRITE_DAT_UNTIL_STOP | RespExpected | CmdPathEnable; - - error = mmc_cmdresp145error(WRITE_DAT_UNTIL_STOP, card_num); - - if (error != MMC_OK) - return error; - - t_mmc0->mmc_DataCtrl = (StreamMode & ~ReadDir) | DataPathEnable; - - t_mmc0->mmc_Mask0 = DataCrcFail | DataTimeOut | TxFifoHalfEmpty | TxUnderrun; - - /*Now the card will send data thru DMA to the destination buffer.CRC/TimeOut error will - be handled in the interrupt handler*/ - } - else if (no_of_bytes > 0) - { - total_no_of_bytes = no_of_bytes; - - t_mmc0->mmc_DataLength = no_of_bytes; - - t_mmc0->mmc_DataTimer = 0xefffffff; - - source_buffer = writebuff; - - t_mmc0->mmc_Argument = addr >> 9; - t_mmc0->mmc_Command = WRITE_DAT_UNTIL_STOP | RespExpected | CmdPathEnable; - - error = mmc_cmdresp145error(WRITE_DAT_UNTIL_STOP, card_num); - - if (error != MMC_OK) - return error; - - t_mmc0->mmc_DataCtrl = (StreamMode & ~ReadDir) | DataPathEnable; - - if (device_mode == POLLING_MODE) - { - timeout = 0xefffffff; - - while ((timeout > 0) && !(t_mmc0->mmc_Status & (DataCrcFail | DataTimeOut | DataEnd))) - { - timeout--; - if (t_mmc0->mmc_Status & TxFifoHalfEmpty) - { - if ((total_no_of_bytes - bytes_transferred) < 32) - { - j = ((total_no_of_bytes - bytes_transferred) % 4 == 0) ? - ((total_no_of_bytes - bytes_transferred) / 4) - : ((total_no_of_bytes - bytes_transferred) / 4 +1); - - for (i = 0; i < j; i++, tempbuff++,bytes_transferred += 4) - t_mmc0->mmc_Fifo = *tempbuff; - - } - else - { - for (i = 0; i < 8; i++) - t_mmc0->mmc_Fifo = *(tempbuff + i); - tempbuff += 8; - bytes_transferred += 32; - } - } - } - - if ((timeout == 0) || (t_mmc0->mmc_Status & DataTimeOut)) - { - t_mmc0->mmc_Clear |= DataTimeOut; - transfer_error = error = MMC_DATA_TIMEOUT; - return error; - } - else if (t_mmc0->mmc_Status & DataCrcFail) - { - t_mmc0->mmc_Clear |= DataCrcFail; - transfer_error = error = MMC_DATA_CRC_FAIL; - return error; - } - - t_mmc0->mmc_Clear = ClrStaticFlags; //clear all the static status flags - - mmc_iscardprogramming(card_num, &cardstate); - while ((cardstate == 7) || (cardstate == 6)) - mmc_iscardprogramming(card_num, &cardstate); - - t_mmc0->mmc_Argument = 0x00000000; - t_mmc0->mmc_Command = STOP_TRANSMISSION | RespExpected | CmdPathEnable; - - transfer_error = error = mmc_cmdresp145error(STOP_TRANSMISSION, card_num); - - if (error != MMC_OK) - return error; - - } - - else if (device_mode == INTERRUPT_MODE) - - t_mmc0->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | TxFifoHalfEmpty | TxUnderrun; - - else if (device_mode == DMA_MODE) - { - t_mmc0->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | TxUnderrun; - t_mmc0->mmc_DataCtrl |= DMAEnab; - } - - } - error = MMC_OK; - return error; -} - -/****************************************************************************/ -/* NAME : mmc_readblocks */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine allows to read blocks from a specified */ -/* address in a card */ -/* PARAMETERS : */ -/* IN : u8 cardno: card to access */ -/* u32 addr : address from where to start reading */ -/* u16 blocksize : size of block in bytes */ -/* u16 no_of_blocks: no. of blocks to read */ -/* OUT : u32* readbuff: source buffer */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_readblocks(u8 card_num, u32 addr, u32 * readbuff, u16 blocksize, u16 no_of_blocks) -{ - t_mmc_error error = MMC_OK; - u32 i; - u32 timeout = 0; - u8 power; - u32 *tempbuff = readbuff; - - total_no_of_bytes = 0; - - t_mmc[card_num]->mmc_DataCtrl = AllZero; - - /* send command for selecting the card */ - if ((card_num > no_of_cards) || (card_num == 0)) - { - error = MMC_INVALID_PARAMETER; - return error; - } - if (card_num != selected_card) - { - t_mmc[card_num]->mmc_Argument = card_array[card_num].RCA;//0x1 << 16; //card_array[cardno - 1].RCA << 16; - t_mmc[card_num]->mmc_Command = SEL_DESEL_CARD | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SEL_DESEL_CARD, card_num); - - if (error != MMC_OK) - { - printf("SEL_DESEL_CARD ::error=0x%x \n", error); - return error; - } - else - selected_card = card_num; - } - - if (t_mmc[card_num]->mmc_Response0 & 0x02000000) - return MMC_LOCK_UNLOCK_FAILED; - - /* now depending on parameter no_of_blocks, send command READ_DAT_UNTIL_STOP */ - - //set the block size,both on controller and card - - if ((blocksize > 0) && (blocksize <= 2048) && ((blocksize & (blocksize - 1)) == 0)) - { - - power = convert_from_bytes_to_power_of_two(blocksize); - t_mmc[card_num]->mmc_DataCtrl = power << 4; - - t_mmc[card_num]->mmc_Argument = (u32) blocksize; - t_mmc[card_num]->mmc_Command = SET_BLOCKLEN | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SET_BLOCKLEN, card_num); - - if (error != MMC_OK) - { - printf("SET_BLOCKLEN ::error=0x%x \n", error); - return error; - } - } - else - { - printf("SET_BLOCKLEN ::error set proper block len\n"); - error = MMC_INVALID_PARAMETER; - return error; - } - - if (no_of_blocks == 0) // this means open-ended block read,until STOP_TRANSMISSION follows - { - - if (device_mode != INTERRUPT_MODE) - return MMC_REQUEST_NOT_APPLICABLE; - - t_mmc[card_num]->mmc_DataTimer = 0xefffffff; - - t_mmc[card_num]->mmc_DataLength = (65535 / blocksize) * blocksize; - - total_no_of_bytes = (65535 / blocksize) * blocksize; - - t_mmc[card_num]->mmc_Argument = (65535 / blocksize); - t_mmc[card_num]->mmc_Command = SET_BLOCK_COUNT | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SET_BLOCK_COUNT, card_num); - - if (error != MMC_OK) - return error; - - t_mmc[card_num]->mmc_DataCtrl |= (ReadDir & ~StreamMode) | DataPathEnable; - - dest_buffer = readbuff; - - t_mmc[card_num]->mmc_Argument = card_array[card_num].blockaddressed ? (addr >> 9) : addr; - t_mmc[card_num]->mmc_Command = READ_MULT_BLOCK | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(READ_MULT_BLOCK, card_num); - - if (error != MMC_OK) - return error; - - t_mmc[card_num]->mmc_Mask0 = DataCrcFail | DataTimeOut | RxFifoHalfFull | RxOverrun; - - /*Now the card will send data thru DMA to the destination buffer.CRC/TimeOut error will - be handled in the interrupt handler*/ - - } - else if (no_of_blocks == 1) - { - total_no_of_bytes = blocksize; - - t_mmc[card_num]->mmc_DataLength = blocksize; - - t_mmc[card_num]->mmc_DataTimer = 0x0fffffff; - - t_mmc[card_num]->mmc_DataCtrl |= (ReadDir & ~StreamMode) | DataPathEnable; - - dest_buffer = readbuff; - - t_mmc[card_num]->mmc_Argument = card_array[card_num].blockaddressed ? (addr >> 9) : addr; - t_mmc[card_num]->mmc_Command = READ_SINGLE_BLOCK | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(READ_SINGLE_BLOCK, card_num); - - if (error != MMC_OK) - { - printf("READ_SINGLE_BLOCK ::error=0x%x \n", error); - return error; - } - if (device_mode == POLLING_MODE) - { - - timeout = 0xefffffff; - - while ((timeout > 0) && !(t_mmc[card_num]->mmc_Status & (RxOverrun | DataCrcFail | - DataTimeOut | DataBlockEnd))) - { - timeout--; - if (t_mmc[card_num]->mmc_Status & RxFifoHalfFull) - { - for (i = 0; i < 8; i++) - { - *(tempbuff + i) = t_mmc[card_num]->mmc_Fifo; - } - tempbuff += 8; - } - - } - - if ((timeout == 0)|| (t_mmc[card_num]->mmc_Status & DataTimeOut)) - { - t_mmc[card_num]->mmc_Clear |= DataTimeOut; - transfer_error = error = MMC_DATA_TIMEOUT; - printf("mmc_readblocks::1 MMC_DATA_TIMEOUT \n"); - return error; - } - else if (t_mmc[card_num]->mmc_Status & DataCrcFail) - { - t_mmc[card_num]->mmc_Clear |= DataCrcFail; - transfer_error = error = MMC_DATA_CRC_FAIL; - printf("mmc_readblocks::1 MMC_DATA_CRC_FAIL \n"); - return error; - } - else if (t_mmc[card_num]->mmc_Status & RxOverrun) - { - t_mmc[card_num]->mmc_Clear |= RxOverrun; - transfer_error = error = MMC_RX_OVERRUN; - printf("mmc_readblocks::1 MMC_RX_OVERRUN \n"); - return error; - } - - while (t_mmc[card_num]->mmc_Status & RxDataAvlbl) - { - *tempbuff = t_mmc[card_num]->mmc_Fifo; - tempbuff++; - } - transfer_error = error; - t_mmc[card_num]->mmc_Clear = ClrStaticFlags; //clear all the static status flags - } - - else if (device_mode == INTERRUPT_MODE) - { - t_mmc[card_num]->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | RxFifoHalfFull | RxOverrun; - } - else if (device_mode == DMA_MODE) - { - t_mmc[card_num]->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | RxOverrun; - t_mmc[card_num]->mmc_DataCtrl |= DMAEnab; - } - - } - else if (no_of_blocks > 1) - { - // set the block count,both for the controller and the card - total_no_of_bytes = no_of_blocks * blocksize; - - t_mmc[card_num]->mmc_DataLength = no_of_blocks * blocksize; - - t_mmc[card_num]->mmc_Argument = (u32) no_of_blocks; - t_mmc[card_num]->mmc_Command = SET_BLOCK_COUNT | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SET_BLOCK_COUNT, card_num); - - if (error != MMC_OK) - return error; - - t_mmc[card_num]->mmc_DataTimer = 0xefffffff; - - t_mmc[card_num]->mmc_DataCtrl |= (ReadDir & ~StreamMode) | DataPathEnable; - - dest_buffer = readbuff; - - t_mmc[card_num]->mmc_Argument = card_array[card_num].blockaddressed ? (addr >> 9) : addr; - t_mmc[card_num]->mmc_Command = READ_MULT_BLOCK | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(READ_MULT_BLOCK, card_num); - if (error != MMC_OK) - return error; - - if (device_mode == POLLING_MODE) - { - timeout = 0xefffffff; - while ((timeout > 0)&& !(t_mmc[card_num]->mmc_Status & (RxOverrun | DataCrcFail |DataTimeOut | DataEnd))) - { - timeout--; - if (t_mmc[card_num]->mmc_Status & RxFifoHalfFull) - { - for (i = 0; i < 8; i++) - { - *(tempbuff + i) = t_mmc[card_num]->mmc_Fifo; - } - tempbuff += 8; - } - } - - if ((timeout == 0) || (t_mmc[card_num]->mmc_Status & DataTimeOut)) - { - t_mmc[card_num]->mmc_Clear |= DataTimeOut; - transfer_error = error = MMC_DATA_TIMEOUT; - return error; - - } - else if (t_mmc[card_num]->mmc_Status & DataCrcFail) - { - t_mmc[card_num]->mmc_Clear |= DataCrcFail; - transfer_error = error = MMC_DATA_CRC_FAIL; - return error; - } - else if (t_mmc[card_num]->mmc_Status & RxOverrun) - { - t_mmc[card_num]->mmc_Clear |= RxOverrun; - transfer_error = error = MMC_RX_OVERRUN; - return error; - } - - while (t_mmc[card_num]->mmc_Status & RxDataAvlbl) - { - *tempbuff = t_mmc[card_num]->mmc_Fifo; - tempbuff++; - } - transfer_error = error; - t_mmc[card_num]->mmc_Clear = ClrStaticFlags; //clear all the static status flags - } - - else if (device_mode == INTERRUPT_MODE) - { - t_mmc[card_num]->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | RxFifoHalfFull | RxOverrun; - } - else if (device_mode == DMA_MODE) - { - t_mmc[card_num]->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | RxOverrun; - t_mmc[card_num]->mmc_DataCtrl |= DMAEnab; - } - } - - return error; -} - -/****************************************************************************/ -/* NAME : mmc_writeblocks */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine allows to write blocks starting from a */ -/* specified address in a card */ -/* PARAMETERS : */ -/* IN : u8 cardno: card to access */ -/* u32 addr : address from where to start writing */ -/* u16 blocksize : size of block in bytes */ -/* u16 no_of_blocks: no. of blocks to write */ -/* OUT : u32* writebuff: source buffer */ -/* */ -/* RETURN : t_mmc_error */ -/****************************************************************************/ - -t_mmc_error mmc_writeblocks(u8 card_num, u32 addr, u32 * writebuff, - u16 blocksize, u16 no_of_blocks) -{ - t_mmc_error error = MMC_OK; - u32 count, rest_words; - u8 power, cardstate; - u32 timeout = 0; - u32 *tempbuff = writebuff; - u32 bytes_transferred = 0; - u32 card_status; - - if (NULL == writebuff) - { - error = MMC_INVALID_PARAMETER; - return (error); - } - - total_no_of_bytes = 0; - - t_mmc[card_num]->mmc_DataCtrl = AllZero; - - /* send command for selecting the card */ - if ((card_num > no_of_cards) || (card_num == 0)) - { - error = MMC_INVALID_PARAMETER; - return error; - } - if (card_num != selected_card) - { - t_mmc[card_num]->mmc_Argument = card_array[card_num].RCA; //card_array[cardno - 1].RCA << 16; - t_mmc[card_num]->mmc_Command = SEL_DESEL_CARD | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SEL_DESEL_CARD, card_num); - - if (error != MMC_OK) - return error; - else - selected_card = card_num; - } - - if (t_mmc[card_num]->mmc_Response0 & R1_CARD_IS_LOCKED) - return MMC_LOCK_UNLOCK_FAILED; - - /* now depending on parameter no_of_blocks, send command READ_DAT_UNTIL_STOP */ - - //set the block size,both on controller and card - - if ((blocksize > 0) && (blocksize <= 2048) - && (((blocksize & (blocksize - 1)) == 0))) - { - power = convert_from_bytes_to_power_of_two(blocksize); - t_mmc[card_num]->mmc_DataCtrl = power << 4; - - t_mmc[card_num]->mmc_Argument = (u32) blocksize; - t_mmc[card_num]->mmc_Command = SET_BLOCKLEN | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SET_BLOCKLEN, card_num); - - if (error != MMC_OK) - return error; - - } - else - { - printf(" mmc_writeblocks::bad block size \n"); - error = MMC_INVALID_PARAMETER; - return error; - } - - if (no_of_blocks == 0) // this means open-ended block read,until STOP_TRANSMISSION follows - { - if (device_mode != INTERRUPT_MODE) - return MMC_REQUEST_NOT_APPLICABLE; - - t_mmc[card_num]->mmc_DataTimer = 0xefffffff; - - t_mmc[card_num]->mmc_DataLength = (65535 / blocksize) * blocksize; - - total_no_of_bytes = (65535 / blocksize) * blocksize; - - t_mmc[card_num]->mmc_Argument = (65535 / blocksize); - t_mmc[card_num]->mmc_Command = SET_BLOCK_COUNT | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SET_BLOCK_COUNT, card_num); - - if (error != MMC_OK) - return error; - - source_buffer = writebuff; - - t_mmc[card_num]->mmc_Argument = card_array[card_num].blockaddressed ? (addr >> 9) : addr; - t_mmc[card_num]->mmc_Command = WRITE_MULT_BLOCK | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(WRITE_MULT_BLOCK, card_num); - - if (error != MMC_OK) - return error; - - t_mmc[card_num]->mmc_DataCtrl |= DataPathEnable & ~(ReadDir | StreamMode); - - t_mmc[card_num]->mmc_Mask0 = DataCrcFail | DataTimeOut | TxFifoHalfEmpty | TxUnderrun; - - /*Now the card will send data thru DMA to the destination buffer.CRC/TimeOut error will - be handled in the interrupt handler*/ - - } - else if (no_of_blocks == 1) - { - total_no_of_bytes = blocksize; - - t_mmc[card_num]->mmc_DataLength = blocksize; - - t_mmc[card_num]->mmc_DataTimer = 0xefffffff; - - source_buffer = writebuff; - - /*Wait till card is ready for data Added*/ - t_mmc[card_num]->mmc_Argument = card_array[card_num].RCA; //card_array[cardno - 1].RCA << 16; - t_mmc[card_num]->mmc_Command = SEND_STATUS | RespExpected | CmdPathEnable; - - error = mmc_cmdresp145error(SEND_STATUS, card_num); - - if (error != MMC_OK) - return error; - - card_status = t_mmc[card_num]->mmc_Response0; - timeout = 0xefffffff; - - while ((0 == (card_status & 0x00000100)) && (timeout > 0)) - { - timeout--; - t_mmc[card_num]->mmc_Argument = card_array[card_num].RCA;//0x1 << 16; - t_mmc[card_num]->mmc_Command = SEND_STATUS | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SEND_STATUS, card_num); - - if (error != MMC_OK) - return error; - card_status = t_mmc[card_num]->mmc_Response0; - } - if (timeout == 0) - { - return (MMC_DATA_TIMEOUT); - } - - /*Till here*/ - /*SEND CMD24 WRITE_SINGLE_BLOCK */ - t_mmc[card_num]->mmc_Argument = card_array[card_num].blockaddressed ? (addr >> 9) : addr; - t_mmc[card_num]->mmc_Command = WRITE_SINGLE_BLOCK | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(WRITE_SINGLE_BLOCK, card_num); - if (error != MMC_OK) - return error; - t_mmc[card_num]->mmc_DataCtrl |= DataPathEnable & ~(ReadDir | StreamMode); - - if (device_mode == POLLING_MODE) - { - - while (!(t_mmc[card_num]->mmc_Status & (DataBlockEnd | TxUnderrun | DataCrcFail | DataTimeOut))) - { - - if (t_mmc[card_num]-> mmc_Status & TxFifoHalfEmpty) - { - if ((total_no_of_bytes - bytes_transferred) < 32) - { - rest_words = ((total_no_of_bytes - bytes_transferred) % 4 == 0) ? - ((total_no_of_bytes - bytes_transferred) / 4) - : ((total_no_of_bytes - bytes_transferred) / 4 +1); - - for (count = 0; count < rest_words; count++, tempbuff++, bytes_transferred += 4) - t_mmc[card_num]-> mmc_Fifo = *tempbuff; - - } - else - { - for (count = 0; count < 8; count++) - { - t_mmc[card_num]->mmc_Fifo = *(tempbuff + count); - } - tempbuff += 8; - bytes_transferred += 32; - } - } - } - - if ((timeout == 0) || (t_mmc[card_num]->mmc_Status & DataTimeOut)) - { - t_mmc[card_num]->mmc_Clear |= DataTimeOut; - transfer_error = error = MMC_DATA_TIMEOUT; - printf(" MMC_DATA_TIMEOUT error \n"); - return error; - } - else if (t_mmc[card_num]->mmc_Status & DataCrcFail) - { - t_mmc[card_num]->mmc_Clear |= DataCrcFail; - transfer_error = error = MMC_DATA_CRC_FAIL; - printf(" MMC_DATA_CRC_FAIL error \n"); - return error; - } - else if (t_mmc[card_num]->mmc_Status & TxUnderrun) - { - t_mmc[card_num]->mmc_Clear |= TxUnderrun; - transfer_error = error = MMC_TX_UNDERRUN; - printf(" MMC_TX_UNDERRUN underrun error \n"); - return error; - } - else if (t_mmc[card_num]->mmc_Status & StartBitError) - { - t_mmc[card_num]->mmc_Clear |= StartBitError; - transfer_error = error = MMC_START_BIT_ERR; - printf(" MMC_START_BIT_ERR start bit error \n"); - return error; - } - //clear all the static status flags - t_mmc[card_num]->mmc_Clear = ClrStaticFlags; - transfer_error = error; - - error = mmc_iscardprogramming(card_num, &cardstate); - while (error == MMC_OK && ((cardstate == 7) || (cardstate == 6))) - error = mmc_iscardprogramming(card_num, &cardstate); - } - - else if (device_mode == INTERRUPT_MODE) - { - t_mmc[card_num]->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | TxFifoHalfEmpty | TxUnderrun; - } - else if (device_mode == DMA_MODE) - { - t_mmc[card_num]->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | TxUnderrun; - t_mmc[card_num]->mmc_DataCtrl |= DMAEnab; - } - - } - else if (no_of_blocks > 1) - { - // set the block count,both for the controller and the card - if (no_of_blocks * blocksize > 0x01FFFFFF) - { - error = MMC_INVALID_PARAMETER; - return (error); - } - - total_no_of_bytes = no_of_blocks * blocksize; - - t_mmc[card_num]->mmc_DataLength = (u32) (no_of_blocks * blocksize); - - t_mmc[card_num]->mmc_Argument = (u32) no_of_blocks; - t_mmc[card_num]->mmc_Command = SET_BLOCK_COUNT | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SET_BLOCK_COUNT, card_num); - - if (error != MMC_OK) - return error; - - t_mmc[card_num]->mmc_DataTimer = 0xefffffff; - - source_buffer = writebuff; - - /*SEND CMD25 WRITE_MULT_BLOCK with argument data address*/ - t_mmc[card_num]->mmc_Argument = card_array[card_num].blockaddressed ? (addr >> 9) : addr; - t_mmc[card_num]->mmc_Command = WRITE_MULT_BLOCK | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(WRITE_MULT_BLOCK, card_num); - - if (error != MMC_OK) - return error; - - t_mmc[card_num]->mmc_DataCtrl |= DataPathEnable & ~(ReadDir | StreamMode); - - if (device_mode == POLLING_MODE) - { - timeout = 0xefffffff; - - while ((timeout > 0) && !(t_mmc[card_num]->mmc_Status & (TxUnderrun | DataCrcFail | - DataTimeOut | DataEnd | StartBitError))) - { - timeout--; - if (t_mmc[card_num]-> mmc_Status & TxFifoHalfEmpty) - { - if ((total_no_of_bytes - bytes_transferred) < 32) - { - rest_words = ((total_no_of_bytes - bytes_transferred) % 4 == 0) ? - ((total_no_of_bytes - bytes_transferred) /4) - : ((total_no_of_bytes - bytes_transferred) / 4 +1); - - for (count = 0; count < rest_words; count++, tempbuff++,bytes_transferred += 4) - t_mmc[card_num]-> mmc_Fifo = *tempbuff; - - } - else - { - for (count = 0; count < 8; count++) - { - t_mmc[card_num]-> mmc_Fifo = *(tempbuff + count); - } - tempbuff += 8; - bytes_transferred += 32; - } - } - - } - - if ((timeout == 0) || (t_mmc[card_num]->mmc_Status & DataTimeOut)) - { - t_mmc[card_num]->mmc_Clear |= DataTimeOut; - transfer_error = error = MMC_DATA_TIMEOUT; - printf(" MMC_DATA_TIMEOUT start bit error \n"); - return error; - - } - else if (t_mmc[card_num]->mmc_Status & DataCrcFail) - { - t_mmc[card_num]->mmc_Clear |= DataCrcFail; - transfer_error = error = MMC_DATA_CRC_FAIL; - printf(" MMC_DATA_CRC_FAIL start bit error \n"); - return error; - } - else if (t_mmc[card_num]->mmc_Status & TxUnderrun) - { - t_mmc[card_num]->mmc_Clear |= TxUnderrun; - transfer_error = error = MMC_TX_UNDERRUN; - printf(" MMC_TX_UNDERRUN start bit error \n"); - return error; - } - else if (t_mmc[card_num]->mmc_Status & StartBitError) - { - t_mmc[card_num]->mmc_Clear |= StartBitError; - transfer_error = error = MMC_START_BIT_ERR; - printf(" MMC_START_BIT_ERR start bit error \n"); - return error; - } - - t_mmc[card_num]->mmc_Clear = ClrStaticFlags; //clear all the static status flags - transfer_error = error; - error = mmc_iscardprogramming(card_num, &cardstate); - while ((MMC_OK == error) && ((cardstate == 7) || (cardstate == 6))) - error = mmc_iscardprogramming(card_num, &cardstate); - } - else if (device_mode == INTERRUPT_MODE) - { - t_mmc[card_num]->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd |TxFifoHalfEmpty | TxUnderrun; - } - else if (device_mode == DMA_MODE) - { - t_mmc[card_num]->mmc_Mask0 = DataCrcFail | DataTimeOut | DataEnd | TxUnderrun; - t_mmc[card_num]->mmc_DataCtrl |= DMAEnab; - } - - } - - return error; -} - -/****************************************************************************/ -/* NAME : mmc_gettransferstate() */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine */ -/* PARAMETERS : */ -/* */ -/* RETURN : t_mmc_transfer_state */ -/****************************************************************************/ - -t_mmc_transfer_state mmc_gettransferstate() -{ - if (t_mmc0->mmc_Status & (TxActive | RxActive)) - return TRANSFER_IN_PROGRESS; - else - return NO_TRANSFER; -} - -/****************************************************************************/ -/* NAME : mmc_erase */ -/*--------------------------------------------------------------------------*/ -/* DESCRIPTION: This routine allows to erase memory area specified for the */ -/* given card. */ -/* PARAMETERS : */ -/* IN : u8 Cardno. to access */ -/* u32 start address for erase. */ -/* u32 Last address for erase. */ -/* OUT : */ -/* */ -/* RETURN : t_mmc_error */ - -/****************************************************************************/ - -t_mmc_error mmc_erase(u8 card_num, u32 StartAddr, u32 EndAddr) -{ - t_mmc_error error; - u32 response; - u8 cardstate; - u32 delay, max_delay; - - if ((card_num > no_of_cards) || (card_num == 0)) - { - printf("mmc_erase:: card no=%d no_of_cards=%d failed \n",card_num, no_of_cards); - error = MMC_INVALID_PARAMETER; - return error; - } - max_delay = 52000 / ((t_mmc[card_num]->mmc_Clock & 0xFF) + 2); - - /* send command for selecting the card */ - - if (card_num != selected_card) - { - t_mmc[card_num]->mmc_Argument = card_array[card_num].RCA; //card_array[cardno - 1].RCA << 16; - t_mmc[card_num]->mmc_Command = SEL_DESEL_CARD | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(SEL_DESEL_CARD, card_num); - if (error != MMC_OK) - return error; - else - selected_card = card_num; - } - - if (t_mmc[card_num]->mmc_Response0 & R1_CARD_IS_LOCKED) - { - error = MMC_LOCK_UNLOCK_FAILED; - return (error); - } - - t_mmc[card_num]->mmc_Argument = card_array[card_num].blockaddressed ? (StartAddr >> 9) : StartAddr; - t_mmc[card_num]->mmc_Command = ERASE_GRP_START | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(ERASE_GRP_START, card_num); - if (error != MMC_OK) - { - printf("mmc_erase:: erase start CMD35 failed \n"); - return error; - } - response = t_mmc[card_num]->mmc_Response0; - - if (response & (R1_OUT_OF_RANGE | R1_ERASE_PARAM)) - { - printf("mmc_erase:: erase start CMD35 R1_OUT_OF_RANGE \n"); - error = MMC_BAD_ERASE_PARAM; - return error; - } - - if (response & R1_ERASE_SEQ_ERROR) - { - printf("mmc_erase:: erase start CMD35 R1_ERASE_SEQ_ERROR \n"); - error = MMC_ERASE_SEQ_ERR; - return error; - } - - if (response & (R1_CARD_IS_LOCKED | R1_LOCK_UNLOCK_FAILED)) - { - printf("mmc_erase:: erase start CMD35 R1_CARD_IS_LOCKED \n"); - error = MMC_LOCK_UNLOCK_FAILED; - return error; - } - - t_mmc[card_num]->mmc_Argument = card_array[card_num].blockaddressed ? (EndAddr >> 9) : EndAddr; - t_mmc[card_num]->mmc_Command = ERASE_GRP_END | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(ERASE_GRP_END, card_num); - if (error != MMC_OK) - { - printf("mmc_erase:: erase end CMD36 failed \n"); - return error; - } - response = t_mmc[card_num]->mmc_Response0; - - if (response & (R1_OUT_OF_RANGE | R1_ERASE_PARAM)) - { - printf("mmc_erase:: erase end R1_OUT_OF_RANGE \n"); - error = MMC_BAD_ERASE_PARAM; - return error; - } - - if (response & R1_ERASE_SEQ_ERROR) - { - printf("mmc_erase:: erase end R1_ERASE_SEQ_ERROR \n"); - error = MMC_ERASE_SEQ_ERR; - return error; - } - - if (response & (R1_CARD_IS_LOCKED | R1_LOCK_UNLOCK_FAILED)) - { - printf("mmc_erase:: erase end R1_CARD_IS_LOCKED\n"); - error = MMC_LOCK_UNLOCK_FAILED; - return error; - } - - t_mmc[card_num]->mmc_Argument = 0; - t_mmc[card_num]->mmc_Command = ERASE | RespExpected | CmdPathEnable; - error = mmc_cmdresp145error(ERASE, card_num); - if (error != MMC_OK) - { - printf("mmc_erase:: erase CMD38 failed \n"); - return error; - } - response = t_mmc[card_num]->mmc_Response0; - if (response & R1_ERASE_SEQ_ERROR) - { - printf("mmc_erase:: erase R1_ERASE_SEQ_ERROR \n"); - error = MMC_ERASE_SEQ_ERR; - return error; - } - - if (response & (R1_CARD_IS_LOCKED | R1_LOCK_UNLOCK_FAILED)) - { - printf("mmc_erase:: erase R1_CARD_IS_LOCKED \n"); - error = MMC_LOCK_UNLOCK_FAILED; - return error; - } - - if (response & R1_WP_ERASE_SKIP) - { - printf("mmc_erase:: erase R1_WP_ERASE_SKIP \n"); - error = MMC_WRITE_PROT_VIOLATION; - return error; - } - for (delay = 0; delay < (max_delay * 3); delay++) ; - - mmc_iscardprogramming(card_num, &cardstate); - while ((MMC_OK == error) && ((cardstate == 7) || (cardstate == 6))) - mmc_iscardprogramming(card_num, &cardstate); - - error = MMC_OK; - return error; -} - -t_mmc_error mmc_cmderror(u8 card_num) -{ - t_mmc_error error = MMC_OK; - u32 timeout; - - timeout = 100000; - while ((timeout > 0) && !(t_mmc[card_num]->mmc_Status & CmdSent)) - timeout--; - - if (timeout == 0) { - error = MMC_CMD_RSP_TIMEOUT; - return error; - } - - t_mmc[card_num]->mmc_Clear = ClrStaticFlags; //clear all the static flags - - return error; -} - -t_mmc_error mmc_cmdresp145error(u8 cmd, u8 card_num) -{ - t_mmc_error error = MMC_OK; - u32 status, timeout; - - timeout = 100000; - status = t_mmc[card_num]->mmc_Status; - while ((timeout > 0) && !(status & (CmdCrcFail | CmdRespEnd | CmdTimeOut))) - { - timeout--; - status = t_mmc[card_num]->mmc_Status; - } - if ((timeout == 0) || (status & CmdTimeOut)) - { - error = MMC_CMD_RSP_TIMEOUT; - t_mmc[card_num]->mmc_Clear |= CmdTimeOut; - return error; - } - else if (status & CmdCrcFail) - { - error = MMC_CMD_CRC_FAIL; - t_mmc[card_num]->mmc_Clear |= CmdCrcFail; - return error; - } - - t_mmc[card_num]->mmc_Clear = ClrStaticFlags; /*Clear Static flags */ - if (t_mmc[card_num]->mmc_RespCommand != cmd) - { - /* check response received for CMD7*/ - error = MMC_ILLEGAL_CMD; - return error; - } - return error; -} - -t_mmc_error mmc_cmdresp2error(u8 card_num) -{ - t_mmc_error error = MMC_OK; - u32 status, timeout; - - timeout = 100000; - status = t_mmc[card_num]->mmc_Status; - while ((timeout > 0) && !(status & (CmdCrcFail | CmdTimeOut | CmdRespEnd))) - { - timeout--; - status = t_mmc[card_num]->mmc_Status; - } - if ((timeout == 0) || (status & CmdTimeOut)) - { - error = MMC_CMD_RSP_TIMEOUT; - t_mmc[card_num]->mmc_Clear |= CmdTimeOut; - return error; - } - else if (status & CmdCrcFail) - { - error = MMC_CMD_CRC_FAIL; - t_mmc[card_num]->mmc_Clear |= CmdCrcFail; - return error; - } - - t_mmc[card_num]->mmc_Clear = ClrStaticFlags; /*Clear Static flags */ - - return error; -} - -t_mmc_error mmc_cmdresp3error(u8 card_num) -{ - t_mmc_error error = MMC_OK; - u32 status, timeout; - - timeout = 0x100000; - status = t_mmc[card_num]->mmc_Status; - while ((timeout > 0) && !(status & (CmdRespEnd | CmdTimeOut | CmdCrcFail))) - { - timeout--; - status = t_mmc[card_num]->mmc_Status; - } - if ((timeout == 0) || (status & CmdTimeOut)) - { - error = MMC_CMD_RSP_TIMEOUT; - t_mmc[card_num]->mmc_Clear |= CmdTimeOut; - return error; - } - - t_mmc[card_num]->mmc_Clear = ClrStaticFlags; - return error; -} - -t_mmc_error mmc_cmdresp6error(u8 cmd, u16 * p_rca, u8 card_num) -{ - t_mmc_error error = MMC_OK; - u32 status; - u32 response_r1; - - status = t_mmc[card_num]->mmc_Status; - while (!(status & (CmdRespEnd | CmdTimeOut | CmdCrcFail))) - { - status = t_mmc[card_num]->mmc_Status; - } - - if (status & CmdTimeOut) - { - error = MMC_CMD_RSP_TIMEOUT; - t_mmc[card_num]->mmc_Clear |= CmdTimeOut; - return (error); - } - else if (status & CmdCrcFail) - { - error = MMC_CMD_CRC_FAIL; - t_mmc[card_num]->mmc_Clear |= CmdCrcFail; - return (error); - } - - /* CHECK RESPONSE RECEIVED IS OF DESIRED COMMAND */ - if (t_mmc[card_num]->mmc_RespCommand != cmd) - { - error = MMC_ILLEGAL_CMD; - return (error); - } - - /*Clear Static flags*/ - t_mmc[card_num]->mmc_Clear = ClrStaticFlags; - - /* WE HAVE RECEIVED RESPONSE, RETRIEVE IT. */ - response_r1 = t_mmc[card_num]->mmc_Response0; - - if (AllZero == (response_r1 & (R6_GEN_UNKNOWN_ERROR | R6_ILLEGAL_CMD | R6_COM_CRC_FAILED))) - { - *p_rca = (u16) (response_r1 >> 16); - return (error); - } - - if (response_r1 & R6_GEN_UNKNOWN_ERROR) - { - return (MMC_GENERAL_UNKNOWN_ERROR); - } - - if (response_r1 & R6_ILLEGAL_CMD) - { - return (MMC_ILLEGAL_CMD); - } - - if (response_r1 & R6_COM_CRC_FAILED) - { - return (MMC_COM_CRC_FAILED); - } - - return (error); -} - -t_mmc_error mmc_cmdresp7error(u8 card_num) -{ - t_mmc_error error = MMC_OK; - u32 status; - u32 timeout = 10000; - - status = t_mmc[card_num]->mmc_Status; - while (!(status & (CmdCrcFail | CmdRespEnd | CmdTimeOut)) && (timeout > 0)) - { - timeout--; - status = t_mmc[card_num]->mmc_Status; - } - - if ((timeout == 0) || (status & CmdTimeOut)) - { - /* Card is not V2.0 complient or card does not support the set voltage range */ - error = MMC_CMD_RSP_TIMEOUT; - return (error); - } - - if (status & CmdRespEnd) - { - /* Card is V2.0 complient */ - error = MMC_OK; - return (error); - } - - return (error); -} - -t_mmc_error mmc_iscardprogramming(u8 card_num, u8 * status) -{ - t_mmc_error error; - u32 response; - - t_mmc[card_num]->mmc_Argument = card_array[card_num].RCA;//0x1 << 16; //RCA - t_mmc[card_num]->mmc_Command = SEND_STATUS | RespExpected | CmdPathEnable; - - error = mmc_cmdresp145error(SEND_STATUS, card_num); - if (error != MMC_OK) - return error; - - response = t_mmc[card_num]->mmc_Response0; - *status = (response >> 9) & 0x0000000f; - - return error; - -} - -t_mmc_error mmc_sendstatus(u8 cardno, u32 * status) -{ - t_mmc_error error = MMC_OK; - - t_mmc0->mmc_Argument = card_array[cardno].RCA;//card_array[cardno - 1].RCA << 16; //RCA - t_mmc0->mmc_Command = SEND_STATUS | RespExpected | CmdPathEnable; - - error = mmc_cmdresp145error(SEND_STATUS, cardno); - if (error != MMC_OK) - return error; - - *status = t_mmc0->mmc_Response0; - - return error; -} - -t_mmc_error mmc_cmderror_2(void) -{ - t_mmc_error error = MMC_OK; - u32 status, timeout; - - timeout = 0xefffffff; - status = t_mmc0->mmc_Status; - while ((timeout > 0) && !(status & (CmdSent| CmdCrcFail | CmdTimeOut | CmdRespEnd))) - { - timeout--; - status = t_mmc0->mmc_Status; - } - - if (timeout == 0) - { - printf(" cmd1 timeout error\n"); - error = MMC_CMD_RSP_TIMEOUT; - return error; - } - - t_mmc0->mmc_Clear = ClrStaticFlags; //clear all the static flags - - return error; -} - -t_mmc_error mmc_cmdresp2error_2(void) -{ - t_mmc_error error = MMC_OK; - u32 status, timeout; - - timeout = 0xefffffff; //(u32)((float)(64/(float)clockfreq )/ ((float)(1/(float)MCLK) + 8*(float)(1/(float)PROCESSOR_CLK))); - status = t_mmc0->mmc_Status; - - while ((timeout > 0) && !(status & (CmdCrcFail | CmdTimeOut | CmdRespEnd))) - { - timeout--; - status = t_mmc0->mmc_Status; - } - if ((timeout == 0) || (status & CmdTimeOut)) - { - error = MMC_CMD_RSP_TIMEOUT; - t_mmc0->mmc_Clear |= CmdTimeOut; - return error; - } - if (status & CmdCrcFail) - { - error = MMC_CMD_CRC_FAIL; - t_mmc0->mmc_Clear |= CmdCrcFail; - return error; - } - - t_mmc0->mmc_Clear = ClrStaticFlags; /*Clear Static flags */ - - return error; -} - -t_mmc_error mmc_cmdresp3error_2(void) -{ - t_mmc_error error = MMC_OK; - u32 status, timeout; - - timeout = 0xefffffff; - status = t_mmc0->mmc_Status; - - while ((timeout > 0) && !(status & (CmdRespEnd | CmdTimeOut | CmdCrcFail))) - { - timeout--; - status = t_mmc0->mmc_Status; - } - if ((timeout == 0) || (status & CmdTimeOut)) - { - error = MMC_CMD_RSP_TIMEOUT; - t_mmc0->mmc_Clear |= CmdTimeOut; - return error; - } - - t_mmc0->mmc_Clear = ClrStaticFlags; - - return error; -} - -t_mmc_error mmc_cmdresp145error_2(u8 cmd) -{ - t_mmc_error error = MMC_OK; - u32 status, timeout; - - timeout = 0xefffffff; - status = t_mmc0->mmc_Status; - - while ((timeout > 0) && !(status & (CmdCrcFail | CmdRespEnd | CmdTimeOut))) - { - timeout--; - status = t_mmc0->mmc_Status; - } - if ((timeout == 0) || (status & CmdTimeOut)) - { - error = MMC_CMD_RSP_TIMEOUT; - t_mmc0->mmc_Clear |= CmdTimeOut; - return error; - } - else if (status & CmdCrcFail) - { - error = MMC_CMD_CRC_FAIL; - t_mmc0->mmc_Clear |= CmdCrcFail; - return error; - } - - t_mmc0->mmc_Clear = ClrStaticFlags; /*Clear Static flags */ - if (t_mmc0->mmc_RespCommand != cmd) - { - /* check response received for CMD7*/ - error = MMC_ILLEGAL_CMD; - return error; - } - - return error; -} - -t_mmc_error mmc_cmdreadresp(u32 * tempbuff) -{ - t_mmc_error error = MMC_OK; - u32 i; - u32 timeout = 0; - - timeout = 0xefffffff; - - while ((timeout > 0) && !(t_mmc0-> mmc_Status & (RxOverrun | DataCrcFail | DataTimeOut |DataBlockEnd))) - { - timeout--; - if (t_mmc0->mmc_Status & RxFifoHalfFull) - { - for (i = 0; i < 8; i++) - { - *(tempbuff + i) = t_mmc0->mmc_Fifo; - } - tempbuff += 8; - } - } - if ((timeout == 0) || (t_mmc0->mmc_Status & DataTimeOut)) - { - t_mmc0->mmc_Clear |= DataTimeOut; - return error; - } - else if (t_mmc0->mmc_Status & DataCrcFail) - { - t_mmc0->mmc_Clear |= DataCrcFail; - error = MMC_DATA_CRC_FAIL; - return error; - } - else if (t_mmc0->mmc_Status & RxOverrun) - { - t_mmc0->mmc_Clear |= RxOverrun; - error = MMC_RX_OVERRUN; - return error; - } - - while (t_mmc0->mmc_Status & RxDataAvlbl) - { - *tempbuff = t_mmc0->mmc_Fifo; - tempbuff++; - } - t_mmc0->mmc_Clear = ClrStaticFlags; //clear all the static status flags - - return error; -} - -t_mmc_error mmc_waitcmdreadresp(void) -{ - t_mmc_error error = MMC_OK; - u32 timeout = 0; - - timeout = 0xefffffff; - - while (!(t_mmc0->mmc_Status & (RxOverrun | DataCrcFail | DataTimeOut | DataBlockEnd))) - { - - } - - if ((timeout == 0) || (t_mmc0->mmc_Status & DataTimeOut)) - { - t_mmc0->mmc_Clear |= DataTimeOut; - return error; - } - else if (t_mmc0->mmc_Status & DataCrcFail) - { - t_mmc0->mmc_Clear |= DataCrcFail; - error = MMC_DATA_CRC_FAIL; - return error; - } - else if (t_mmc0->mmc_Status & RxOverrun) - { - t_mmc0->mmc_Clear |= RxOverrun; - error = MMC_RX_OVERRUN; - return error; - } - - t_mmc0->mmc_Clear = ClrStaticFlags; //clear all the static status flags - - return error; -} - -t_mmc_error mmc_iscardprogramming_2(u8 * status) -{ - t_mmc_error error; - u32 response; - t_mmc_command_control commcontrol; - - commcontrol.IsRespExpected = TRUE; - commcontrol.IsLongResp = FALSE; - commcontrol.IsInterruptMode = FALSE; - commcontrol.IsPending = FALSE; - commcontrol.cmdpath = MMC_ENABLE; - - error = mmc_sendcommand(MMC_SEND_STATUS, t_mmc_rel_addr, commcontrol); - error = mmc_cmdresp145error_2(MMC_SEND_STATUS); - - if (error != MMC_OK) - return error; - - response = t_mmc0->mmc_Response0; - *status = (response >> 9) & 0x0000000f; - - return error; -} - -t_mmc_error mmc_cmdwriteresp(u8 cardno, u32 * tempbuff, u16 total_num_of_bytes) -{ - u32 timeout = 0; - t_mmc_error error = MMC_OK; - u32 bytes_transferred = 0; - u32 i, j; - u8 cardstate; - - timeout = 0xefffffff; - - while ((timeout > 0) && !(t_mmc0-> mmc_Status & (DataBlockEnd | TxUnderrun | DataCrcFail | DataTimeOut))) - { - timeout--; - if (t_mmc0->mmc_Status & TxFifoHalfEmpty) - { - if ((total_num_of_bytes - bytes_transferred) < 32) - { - j = ((total_num_of_bytes - bytes_transferred) % 4 ==0) ? - ((total_num_of_bytes - bytes_transferred) / 4) : - ((total_num_of_bytes - bytes_transferred) / 4 + 1); - - for (i = 0; i < j; i++, tempbuff++, bytes_transferred += 4) - t_mmc0->mmc_Fifo = *tempbuff; - } - else - { - for (i = 0; i < 8; i++) - t_mmc0->mmc_Fifo = *(tempbuff + i); - tempbuff += 8; - bytes_transferred += 32; - } - } - } - - if ((timeout == 0) || (t_mmc0->mmc_Status & DataTimeOut)) - { - t_mmc0->mmc_Clear |= DataTimeOut; - error = MMC_DATA_TIMEOUT; - printf(" mmc_cmdwriteresp timeout error \n"); - return error; - } - else if (t_mmc0->mmc_Status & DataCrcFail) - { - t_mmc0->mmc_Clear |= DataCrcFail; - error = MMC_DATA_CRC_FAIL; - printf(" mmc_cmdwriteresp CRC error \n"); - return error; - } - else if (t_mmc0->mmc_Status & TxUnderrun) - { - t_mmc0->mmc_Clear |= TxUnderrun; - error = MMC_TX_UNDERRUN; - printf(" mmc_cmdwriteresp underrun error \n"); - return error; - } - - t_mmc0->mmc_Clear = ClrStaticFlags; //clear all the static status flags - - error = mmc_iscardprogramming_2(&cardstate); - while (error == MMC_OK && cardstate == 7) - error = mmc_iscardprogramming_2(&cardstate); - - return error; -} - -t_mmc_error mmc_waitcmdwriteresp(u8 cardno, u32 * tempbuff, u16 total_num_of_bytes) -{ - u32 timeout = 0; - t_mmc_error error = MMC_OK; - u8 cardstate; - - timeout = 0xefffffff; - - while ((timeout > 0) && !(t_mmc0-> mmc_Status & (DataBlockEnd | TxUnderrun | DataCrcFail | DataTimeOut))) - { - - } - - if ((timeout == 0) || (t_mmc0->mmc_Status & DataTimeOut)) - { - t_mmc0->mmc_Clear |= DataTimeOut; - error = MMC_DATA_TIMEOUT; - return error; - - } - else if (t_mmc0->mmc_Status & DataCrcFail) - { - t_mmc0->mmc_Clear |= DataCrcFail; - error = MMC_DATA_CRC_FAIL; - return error; - } - else if (t_mmc0->mmc_Status & TxUnderrun) - { - t_mmc0->mmc_Clear |= TxUnderrun; - error = MMC_TX_UNDERRUN; - return error; - } - - t_mmc0->mmc_Clear = ClrStaticFlags; //clear all the static status flags - - error = mmc_iscardprogramming_2(&cardstate); - while (error == MMC_OK && cardstate == 7) - error = mmc_iscardprogramming_2(&cardstate); - - return error; -} |