Finish reponse methods
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2249 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
parent
6f4c6dc9fe
commit
ad761213f2
@ -120,13 +120,10 @@ static void stm32_sendcmd(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 arg);
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static int stm32_senddata(FAR struct sdio_dev_s *dev,
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FAR const ubyte *buffer);
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static int stm32_recvR1(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R1);
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static int stm32_recvR2(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 R2[4]);
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static int stm32_recvR3(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R3);
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static int stm32_recvR4(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R4);
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static int stm32_recvR5(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R5);
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static int stm32_recvR6(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R6);
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static int stm32_recvR7(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R7);
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static int stm32_recvshortcrc(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *rshort);
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static int stm32_recvlong(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 rlong[4]);
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static int stm32_recvshort(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *rshort);
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static int stm32_recvnotimpl(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *rnotimpl);
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static int stm32_recvdata(FAR struct sdio_dev_s *dev, FAR ubyte *buffer);
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/* EVENT handler */
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@ -175,13 +172,13 @@ struct stm32_dev_s g_mmcsd =
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.attach = stm32_attach,
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.sendcmd = stm32_sendcmd,
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.senddata = stm32_senddata,
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.recvR1 = stm32_recvR1,
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.recvR2 = stm32_recvR2,
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.recvR3 = stm32_recvR3,
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.recvR4 = stm32_recvR4,
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.recvR5 = stm32_recvR5,
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.recvR6 = stm32_recvR6,
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.recvR7 = stm32_recvR7,
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.recvR1 = stm32_recvshortcrc,
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.recvR2 = stm32_recvlong,
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.recvR3 = stm32_recvshort,
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.recvR4 = stm32_recvnotimpl,
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.recvR5 = stm32_recvnotimpl,
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.recvR6 = stm32_recvshortcrc,
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.recvR7 = stm32_recvshort,
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.recvdata = stm32_recvdata,
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.eventenable = stm32_eventenable,
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.eventwait = stm32_eventwait,
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@ -551,42 +548,203 @@ static int stm32_senddata(FAR struct sdio_dev_s *dev, FAR const ubyte *buffer)
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* Rx - Buffer in which to receive the response
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*
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* Returned Value:
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* Number of bytes sent on success; a negated errno on failure
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*
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* Number of bytes sent on success; a negated errno on failure. Here a
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* failure means only a faiure to obtain the requested reponse (due to
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* transport problem -- timeout, CRC, etc.). The implementation only
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* assures that the response is returned intacta and does not check errors
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* within the response itself.
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*
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****************************************************************************/
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static int stm32_recvR1(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R1)
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static int stm32_recvshortcrc(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *rshort)
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{
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return -ENOSYS;
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#ifdef CONFIG_DEBUG
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uint32 respcmd;
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#endif
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uint32 regval;
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/* R1 Command response (48-bit)
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* 47 0 Start bit
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* 46 0 Transmission bit (0=from card)
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* 45:40 bit5 - bit0 Command index (0-63)
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* 39:8 bit31 - bit0 32-bit card status
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* 7:1 bit6 - bit0 CRC7
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* 0 1 End bit
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*
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* R1b Identical to R1 with the additional busy signaling via the data
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* line.
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*
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* R6 Published RCA Response (48-bit, SD card only)
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* 47 0 Start bit
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* 46 0 Transmission bit (0=from card)
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* 45:40 bit5 - bit0 Command index (0-63)
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* 39:8 bit31 - bit0 32-bit Argument Field, consisting of:
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* [31:16] New published RCA of card
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* [15:0] Card status bits {23,22,19,12:0}
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* 7:1 bit6 - bit0 CRC7
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* 0 1 End bit
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*/
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#ifdef CONFIG_DEBUG
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if (!rshort)
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{
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fdbg("ERROR: rshort=NULL\n");
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return -EINVAL;
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}
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/* Check that this is the correct response to this command */
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if ((cmd & MMCSD_RESPONSE_MASK) != MMCSD_R1_RESPONSE &&
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(cmd & MMCSD_RESPONSE_MASK) != MMCSD_R1B_RESPONSE &&
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cmd & MMCSD_RESPONSE_MASK |= MMCSD_R6_RESPONSE)
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{
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fdbg("ERROR: Wrong response CMD=%08x\n", cmd);
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return -EINVAL;
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}
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#endif
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/* Verify that the response is available */
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regval = getreg32(STM32_SDIO_STA);
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if ((regval & SDIO_STA_CTIMEOUT) != 0)
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{
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fdbg("ERROR: Command timeout: %08x\n", regval);
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putreg32(SDIO_ICR_CTIMEOUTC, STM32_SDIO_ICR);
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return -ETIMEDOUT;
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}
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else if ((regval & SDIO_STA_CCRCFAIL) != 0)
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{
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fdbg("ERROR: CRC failuret: %08x\n", regval);
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putreg32(SDIO_ICR_CCRCFAILC, STM32_SDIO_ICR);
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return -EIO;
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}
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else if ((regval & SDIO_STA_CMDREND) == 0)
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{
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fdbg("ERROR: Status is not yet available: %08x\n", regval);
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return -EBUSY;
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}
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/* Check response received is of desired command */
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#ifdef CONFIG_DEBUG
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respcmd = getreg32(STM32_SDIO_RESPCMD);
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if ((ubyte)(respcmd & SDIO_RESPCMD_MASK) != (cmd & MMCSD_CMDIDX_MASK))
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{
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fdbg("ERROR: RESCMD=%02x CMD=%08x\n", respcmd, cmd);
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return -EINVAL;
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}
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#endif
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/* Return the R1 response */
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putreg32(SDIO_ICR_STATICFLAGS, STM32_SDIO_ICR);
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*rshort = getreg32(STM32_SDIO_RESP1);
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return OK;
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}
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static int stm32_recvR2(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 R2[4])
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static int stm32_recvlong(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 rlong[4])
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{
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return -ENOSYS;
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uint32 regval;
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/* R2 CID, CSD register (136-bit)
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* 135 0 Start bit
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* 134 0 Transmission bit (0=from card)
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* 133:128 bit5 - bit0 Reserved
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* 127:1 bit127 - bit1 127-bit CID or CSD register
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* (including internal CRC)
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* 0 1 End bit
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*/
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#ifdef CONFIG_DEBUG
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/* Check that R1 is the correct response to this command */
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if ((cmd & MMCSD_RESPONSE_MASK) != MMCSD_R2_RESPONSE)
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{
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fdbg("ERROR: Wrong response CMD=%08x\n", cmd);
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return -EINVAL;
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}
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#endif
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/* Verify that the response is available */
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regval = getreg32(STM32_SDIO_STA);
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if (regval & SDIO_STA_CTIMEOUT)
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{
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putreg32(SDIO_ICR_CTIMEOUTC, STM32_SDIO_ICR);
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return -ETIMEDOUT;
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}
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else if (regval & SDIO_STA_CCRCFAIL)
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{
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putreg32(SDIO_ICR_CCRCFAILC, STM32_SDIO_ICR);
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return -EIO;
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}
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else if ((regval & SDIO_STA_CMDREND) == 0)
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{
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fdbg("ERROR: Status is not yet available: %08x\n", regval);
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return -EBUSY;
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}
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/* Return the long response */
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putreg32(SDIO_ICR_STATICFLAGS, STM32_SDIO_ICR);
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if (rlong)
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{
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rlong[0] = getreg32(STM32_SDIO_RESP1);
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rlong[1] = getreg32(STM32_SDIO_RESP2);
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rlong[2] = getreg32(STM32_SDIO_RESP3);
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rlong[3] = getreg32(STM32_SDIO_RESP4);
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}
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return OK;
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}
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static int stm32_recvR3(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R3)
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static int stm32_recvshort(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *rshort)
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{
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return -ENOSYS;
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uint32 regval;
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/* R3 OCR (48-bit)
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* 47 0 Start bit
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* 46 0 Transmission bit (0=from card)
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* 45:40 bit5 - bit0 Reserved
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* 39:8 bit31 - bit0 32-bit OCR register
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* 7:1 bit6 - bit0 Reserved
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* 0 1 End bit
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*/
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/* Check that this is the correct response to this command */
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#ifdef CONFIG_DEBUG
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if ((cmd & MMCSD_RESPONSE_MASK) != MMCSD_R3_RESPONSE &&
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cmd & MMCSD_RESPONSE_MASK |= MMCSD_R7_RESPONSE)
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{
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fdbg("ERROR: Wrong response CMD=%08x\n", cmd);
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return -EINVAL;
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}
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#endif
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regval = getreg32(STM32_SDIO_STA);
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if (regval & SDIO_STA_CTIMEOUT)
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{
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putreg32(SDIO_ICR_CTIMEOUTC, STM32_SDIO_ICR);
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return -ETIMEDOUT;
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}
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else if ((regval & SDIO_STA_CMDREND) == 0)
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{
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fdbg("ERROR: Status is not yet available: %08x\n", regval);
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return -EBUSY;
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}
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/* Return the short response */
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putreg32(SDIO_ICR_STATICFLAGS, STM32_SDIO_ICR);
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if (rshort)
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{
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*rshort = getreg32(STM32_SDIO_RESP1);
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}
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return OK;
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}
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static int stm32_recvR4(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R4)
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{
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return -ENOSYS;
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}
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static int stm32_recvR5(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R5)
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{
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return -ENOSYS;
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}
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static int stm32_recvR6(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R6)
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{
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return -ENOSYS;
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}
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static int stm32_recvR7(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R7)
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static int stm32_recvnotimpl(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *rnotimpl)
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{
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return -ENOSYS;
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}
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