diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-11-12 15:49:48 +0000 |
---|---|---|
committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-11-12 15:49:48 +0000 |
commit | fe274d1fd126059327a65589486b5cc836365c59 (patch) | |
tree | e2df47c454ff7f45ac9ddf1702181b78f69e6cca /nuttx/arch/arm/src/stm32 | |
parent | f4a1651e7332e01edc38d68a666563bb03c49cbd (diff) | |
download | px4-nuttx-fe274d1fd126059327a65589486b5cc836365c59.tar.gz px4-nuttx-fe274d1fd126059327a65589486b5cc836365c59.tar.bz2 px4-nuttx-fe274d1fd126059327a65589486b5cc836365c59.zip |
SDIO interface simplication
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2248 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src/stm32')
-rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_sdio.c | 1688 | ||||
-rwxr-xr-x | nuttx/arch/arm/src/stm32/stm32_sdio.h | 10 |
2 files changed, 877 insertions, 821 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32_sdio.c b/nuttx/arch/arm/src/stm32/stm32_sdio.c index 7d9eafcef..27dcec30b 100644 --- a/nuttx/arch/arm/src/stm32/stm32_sdio.c +++ b/nuttx/arch/arm/src/stm32/stm32_sdio.c @@ -1,840 +1,896 @@ -/**************************************************************************** - * arch/arm/src/stm32/stm32_sdio.c - * - * Copyright (C) 2009 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <spudmonkey@racsa.co.cr> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> -#include <sys/types.h> - -#include <debug.h> -#include <errno.h> - -#include <nuttx/sdio.h> -#include <nuttx/mmcsd.h> - -#include "chip.h" -#include "up_arch.h" -#include "stm32_internal.h" -#include "stm32_sdio.h" - -/**************************************************************************** - * Pre-Processor Definitions - ****************************************************************************/ - -/* Friendly CLKCR bit re-definitions ****************************************/ +/****************************************************************************
+ * arch/arm/src/stm32/stm32_sdio.c
+ *
+ * Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/sdio.h>
+#include <nuttx/mmcsd.h>
+
+#include "chip.h"
+#include "up_arch.h"
+#include "stm32_internal.h"
+#include "stm32_sdio.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Friendly CLKCR bit re-definitions ****************************************/
#define SDIO_CLKCR_RISINGEDGE (0)
#define SDIO_CLKCR_FALLINGEDGE SDIO_CLKCR_NEGEDGE
- -/* HCLK=72MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(178+2)=400 KHz */ +
+/* HCLK=72MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(178+2)=400 KHz */
#define SDIO_INIT_CLKDIV (178 << SDIO_CLKCR_CLKDIV_SHIFT)
-#define STM32_CLCKCR_INIT \ - (SDIO_INIT_CLKDIV|SDIO_CLKCR_RISINGEDGE|SDIO_CLKCR_WIDBUS_D1) - -/* HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(1+2)=24 MHz */ +#define STM32_CLCKCR_INIT \
+ (SDIO_INIT_CLKDIV|SDIO_CLKCR_RISINGEDGE|SDIO_CLKCR_WIDBUS_D1)
+
+/* HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(1+2)=24 MHz */
#define SDIO_TRANSFER_CLKDIV (1 << SDIO_CLKCR_CLKDIV_SHIFT)
-#define STM32_CLCKCR_TRANSFER \ +#define STM32_CLCKCR_TRANSFER \
(SDIO_TRANSFER_CLKDIV|SDIO_CLKCR_RISINGEDGE|SDIO_CLKCR_WIDBUS_D1)
-#define STM32_CLKCR_WIDETRANSFER \ +#define STM32_CLKCR_WIDETRANSFER \
(SDIO_TRANSFER_CLKDIV|SDIO_CLKCR_RISINGEDGE|SDIO_CLKCR_WIDBUS_D4)
- -/**************************************************************************** - * Private Types - ****************************************************************************/ - -/* This structure defines the state of the STM32 SDIO interface */ - -struct stm32_dev_s -{ - struct sdio_dev_s dev; /* Standard, base MMC/SD interface */ - - /* STM32-specific extensions */ - - ubyte type; /* Card type (see MMCSD_CARDTYPE_ definitions) */ -}; - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ - -/* Low-level helpers ********************************************************/ - +
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/* This structure defines the state of the STM32 SDIO interface */
+
+struct stm32_dev_s
+{
+ struct sdio_dev_s dev; /* Standard, base MMC/SD interface */
+
+ /* STM32-specific extensions */
+
+ ubyte type; /* Card type (see MMCSD_CARDTYPE_ definitions) */
+};
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/* Low-level helpers ********************************************************/
+
static inline void stm32_setclkcr(uint32 clkcr);
-static inline void stm32_enableint(uint32 bitset); -static inline void stm32_disableint(uint32 bitset); - -/* SDIO interface methods ***************************************************/ - -/* Initialization/setup */ - -static void stm32_reset(FAR struct sdio_dev_s *dev); -static ubyte stm32_status(FAR struct sdio_dev_s *dev); -static void stm32_widebus(FAR struct sdio_dev_s *dev, boolean enable); -static void stm32_clock(FAR struct sdio_dev_s *dev, - enum sdio_clock_e rate); -static int stm32_setblocklen(FAR struct sdio_dev_s *dev, int blocklen, - int nblocks); -static int stm32_attach(FAR struct sdio_dev_s *dev); - -/* Command/Status/Data Transfer */ - -static void stm32_sendcmd(FAR struct sdio_dev_s *dev, uint32 cmd, - uint32 arg, FAR const ubyte *data); -static int stm32_senddata(FAR struct sdio_dev_s *dev, - FAR const ubyte *buffer); - -static int stm32_recvR1(FAR struct sdio_dev_s *dev, uint16 buffer[3]); -static int stm32_recvR2(FAR struct sdio_dev_s *dev, uint16 buffer[8]); -static int stm32_recvR3(FAR struct sdio_dev_s *dev, uint16 buffer[3]); -static int stm32_recvR4(FAR struct sdio_dev_s *dev, uint16 buffer[3]); -static int stm32_recvR5(FAR struct sdio_dev_s *dev, uint16 buffer[3]); -static int stm32_recvR6(FAR struct sdio_dev_s *dev, uint16 buffer[3]); -static int stm32_recvdata(FAR struct sdio_dev_s *dev, FAR ubyte *buffer); - -/* EVENT handler */ - -static void stm32_eventenable(FAR struct sdio_dev_s *dev, ubyte eventset, - boolean enable); -static ubyte stm32_eventwait(FAR struct sdio_dev_s *dev, uint32 timeout); -static ubyte stm32_events(FAR struct sdio_dev_s *dev); - -/* DMA */ - -#ifdef CONFIG_SDIO_DMA -static boolean stm32_dmasupported(FAR struct sdio_dev_s *dev); -#ifdef CONFIG_DATA_CACHE -static void stm32_coherent(FAR struct sdio_dev_s *dev, FAR void *addr, - size_t len, boolean write); -#endif -static int stm32_dmareadsetup(FAR struct sdio_dev_s *dev, - FAR ubyte *buffer); -static int stm32_dmawritesetup(FAR struct sdio_dev_s *dev, - FAR const ubyte *buffer); -static int stm32_dmaenable(FAR struct sdio_dev_s *dev); -static int stm32_dmastart(FAR struct sdio_dev_s *dev); -static int stm32_dmastop(FAR struct sdio_dev_s *dev); -static int stm32_dmastatus(FAR struct sdio_dev_s *dev, - size_t *remaining); -#endif - -/* Initialization/uninitialization/reset ************************************/ - -static void stm32_default(void); - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -struct stm32_dev_s g_mmcsd = -{ - .dev = - { - .reset = stm32_reset, - .status = stm32_status, - .widebus = stm32_widebus, - .clock = stm32_clock, - .setblocklen = stm32_setblocklen, - .attach = stm32_attach, - .sendcmd = stm32_sendcmd, - .senddata = stm32_senddata, - .recvR1 = stm32_recvR1, - .recvR2 = stm32_recvR2, - .recvR3 = stm32_recvR3, - .recvR4 = stm32_recvR4, - .recvR5 = stm32_recvR5, - .recvR6 = stm32_recvR6, - .recvdata = stm32_recvdata, - .eventenable = stm32_eventenable, - .eventwait = stm32_eventwait, - .events = stm32_events, -#ifdef CONFIG_SDIO_DMA - .dmasupported = stm32_dmasupported, -#ifdef CONFIG_DATA_CACHE - .coherent = stm32_coherent, -#endif - .dmareadsetup = stm32_dmareadsetup, - .dmawritesetup = stm32_dmawritesetup, - .dmaenable = stm32_dmaenable, - .dmastart = stm32_dmastart, - .dmastop = stm32_dmastop, - .dmastatus = stm32_dmastatus, -#endif - }, -}; - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Low-level Helpers - ****************************************************************************/ -/**************************************************************************** - * Name: stm32_setclkcr - * - * Description: - * Modify oft-changed bits in the CLKCR register. Only the following bit- - * fields are changed: - * - * CLKDIV, PWRSAV, BYPASS, WIDBUS, NEGEDGE, and HWFC_EN - * - * Input Parameters: - * clkcr - A new CLKCR setting for the above mentions bits (other bits - * are ignored. - * - * Returned Value: - * None - * - ****************************************************************************/ - +static inline void stm32_enableint(uint32 bitset);
+static inline void stm32_disableint(uint32 bitset);
+static void stm32_setpwrctrl(uint32 pwrctrl);
+static inline uint32 stm32_getpwrctrl(void);
+
+/* SDIO interface methods ***************************************************/
+
+/* Initialization/setup */
+
+static void stm32_reset(FAR struct sdio_dev_s *dev);
+static ubyte stm32_status(FAR struct sdio_dev_s *dev);
+static void stm32_widebus(FAR struct sdio_dev_s *dev, boolean enable);
+static void stm32_clock(FAR struct sdio_dev_s *dev,
+ enum sdio_clock_e rate);
+static int stm32_setblocklen(FAR struct sdio_dev_s *dev, int blocklen,
+ int nblocks);
+static int stm32_attach(FAR struct sdio_dev_s *dev);
+
+/* Command/Status/Data Transfer */
+
+static void stm32_sendcmd(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 arg);
+static int stm32_senddata(FAR struct sdio_dev_s *dev,
+ FAR const ubyte *buffer);
+
+static int stm32_recvR1(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R1);
+static int stm32_recvR2(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 R2[4]);
+static int stm32_recvR3(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R3);
+static int stm32_recvR4(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R4);
+static int stm32_recvR5(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R5);
+static int stm32_recvR6(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R6);
+static int stm32_recvR7(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R7);
+static int stm32_recvdata(FAR struct sdio_dev_s *dev, FAR ubyte *buffer);
+
+/* EVENT handler */
+
+static void stm32_eventenable(FAR struct sdio_dev_s *dev, ubyte eventset,
+ boolean enable);
+static ubyte stm32_eventwait(FAR struct sdio_dev_s *dev, uint32 timeout);
+static ubyte stm32_events(FAR struct sdio_dev_s *dev);
+
+/* DMA */
+
+#ifdef CONFIG_SDIO_DMA
+static boolean stm32_dmasupported(FAR struct sdio_dev_s *dev);
+#ifdef CONFIG_DATA_CACHE
+static void stm32_coherent(FAR struct sdio_dev_s *dev, FAR void *addr,
+ size_t len, boolean write);
+#endif
+static int stm32_dmareadsetup(FAR struct sdio_dev_s *dev,
+ FAR ubyte *buffer);
+static int stm32_dmawritesetup(FAR struct sdio_dev_s *dev,
+ FAR const ubyte *buffer);
+static int stm32_dmaenable(FAR struct sdio_dev_s *dev);
+static int stm32_dmastart(FAR struct sdio_dev_s *dev);
+static int stm32_dmastop(FAR struct sdio_dev_s *dev);
+static int stm32_dmastatus(FAR struct sdio_dev_s *dev,
+ size_t *remaining);
+#endif
+
+/* Initialization/uninitialization/reset ************************************/
+
+static void stm32_default(void);
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+struct stm32_dev_s g_mmcsd =
+{
+ .dev =
+ {
+ .reset = stm32_reset,
+ .status = stm32_status,
+ .widebus = stm32_widebus,
+ .clock = stm32_clock,
+ .setblocklen = stm32_setblocklen,
+ .attach = stm32_attach,
+ .sendcmd = stm32_sendcmd,
+ .senddata = stm32_senddata,
+ .recvR1 = stm32_recvR1,
+ .recvR2 = stm32_recvR2,
+ .recvR3 = stm32_recvR3,
+ .recvR4 = stm32_recvR4,
+ .recvR5 = stm32_recvR5,
+ .recvR6 = stm32_recvR6,
+ .recvR7 = stm32_recvR7,
+ .recvdata = stm32_recvdata,
+ .eventenable = stm32_eventenable,
+ .eventwait = stm32_eventwait,
+ .events = stm32_events,
+#ifdef CONFIG_SDIO_DMA
+ .dmasupported = stm32_dmasupported,
+#ifdef CONFIG_DATA_CACHE
+ .coherent = stm32_coherent,
+#endif
+ .dmareadsetup = stm32_dmareadsetup,
+ .dmawritesetup = stm32_dmawritesetup,
+ .dmaenable = stm32_dmaenable,
+ .dmastart = stm32_dmastart,
+ .dmastop = stm32_dmastop,
+ .dmastatus = stm32_dmastatus,
+#endif
+ },
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Low-level Helpers
+ ****************************************************************************/
+/****************************************************************************
+ * Name: stm32_setclkcr
+ *
+ * Description:
+ * Modify oft-changed bits in the CLKCR register. Only the following bit-
+ * fields are changed:
+ *
+ * CLKDIV, PWRSAV, BYPASS, WIDBUS, NEGEDGE, and HWFC_EN
+ *
+ * Input Parameters:
+ * clkcr - A new CLKCR setting for the above mentions bits (other bits
+ * are ignored.
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
static inline void stm32_setclkcr(uint32 clkcr)
{
uint32 regval = getreg32(STM32_SDIO_CLKCR);
- /* Clear CLKDIV, PWRSAV, BYPASS, WIDBUS, NEGEDGE, HWFC_EN bits */ -
- regval &= ~(SDIO_CLKCR_CLKDIV_MASK|SDIO_CLKCR_PWRSAV|SDIO_CLKCR_BYPASS| - SDIO_CLKCR_WIDBUS_MASK|SDIO_CLKCR_NEGEDGE|SDIO_CLKCR_HWFC_EN); - - /* Replace with user provided settings */ - - clkcr &= (SDIO_CLKCR_CLKDIV_MASK|SDIO_CLKCR_PWRSAV|SDIO_CLKCR_BYPASS| - SDIO_CLKCR_WIDBUS_MASK|SDIO_CLKCR_NEGEDGE|SDIO_CLKCR_HWFC_EN); - regval |= clkcr; - putreg32(regval, STM32_SDIO_CLKCR); -}
- -/**************************************************************************** - * Name: stm32_enableint - * - * Description: - * Enable SDIO interrupts - * - * Input Parameters: - * bitset - The set of bits in the SDIO MASK register to set - * - * Returned Value: - * None - * - ****************************************************************************/ - -static inline void stm32_enableint(uint32 bitset) -{ - uint32 regval; - regval = getreg32(STM32_SDIO_MASK); - regval |= bitset; - putreg32(regval, STM32_SDIO_MASK); -} -
-/**************************************************************************** - * Name: stm32_disableint - * - * Description: - * Disable SDIO interrupts - * - * Input Parameters: - * bitset - The set of bits in the SDIO MASK register to clear - * - * Returned Value: - * None - * - ****************************************************************************/ - -static inline void stm32_disableint(uint32 bitset) -{ - uint32 regval; - regval = getreg32(STM32_SDIO_MASK); - regval &= ~bitset; - putreg32(regval, STM32_SDIO_MASK); -} -
-/**************************************************************************** - * SDIO Interface Methods - ****************************************************************************/ -/**************************************************************************** - * Name: stm32_reset - * - * Description: - * Reset the MMC/SD controller. Undo all setup and initialization. - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * - * Returned Value: - * None - * - ****************************************************************************/ - -static void stm32_reset(FAR struct sdio_dev_s *dev) -{ -} - -/**************************************************************************** - * Name: stm32_status - * - * Description: - * Get MMC/SD status. - * - * Input Parameters: - * dev - Device-specific state data - * - * Returned Value: - * Returns a bitset of status values (see stm32_status_* defines) - * - ****************************************************************************/ - -static ubyte stm32_status(FAR struct sdio_dev_s *dev) -{ - return 0; -} - -/**************************************************************************** - * Name: SDIO_WIDEBUS - * - * Description: - * Called after change in Bus width has been selected (via ACMD6). Most - * controllers will need to perform some special operations to work - * correctly in the new bus mode. - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * wide - TRUE: wide bus (4-bit) bus mode enabled - * - * Returned Value: - * None - * - ****************************************************************************/ - -static void stm32_widebus(FAR struct sdio_dev_s *dev, boolean wide) -{ -} - -/**************************************************************************** - * Name: stm32_clock - * - * Description: - * Enable/disable MMC/SD clocking - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * rate - Specifies the clocking to use (see enum sdio_clock_e) - * - * Returned Value: - * None - * - ****************************************************************************/ - -static void stm32_clock(FAR struct sdio_dev_s *dev, enum sdio_clock_e rate) -{ -} - -/**************************************************************************** - * Name: stm32_setblocklen - * - * Description: - * Set the MMC/SD block length and block count - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * blocklen - The block length - * nblocks - The block count - * - * Returned Value: - * OK on success; negated errno on failure - * - ****************************************************************************/ - -static int stm32_setblocklen(FAR struct sdio_dev_s *dev, int blocklen, int nblocks) -{ - return -ENOSYS; -} - -/**************************************************************************** - * Name: stm32_attach - * - * Description: - * Attach and prepare interrupts - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * - * Returned Value: - * OK on success; A negated errno on failure. - * - ****************************************************************************/ - -static int stm32_attach(FAR struct sdio_dev_s *dev) -{ - return -ENOSYS; -} - -/**************************************************************************** - * Name: stm32_sendcmd - * - * Description: - * Send the MMC/SD command - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * cmd - The command to send (32-bits, encoded) - * arg - 32-bit argument required with some commands - * data - A reference to data required with some commands - * - * Returned Value: - * None - * - ****************************************************************************/ - -static void stm32_sendcmd(FAR struct sdio_dev_s *dev, uint32 cmd, - uint32 arg, FAR const ubyte *data) -{ - uint32 regval; + /* Clear CLKDIV, PWRSAV, BYPASS, WIDBUS, NEGEDGE, HWFC_EN bits */
+
+ regval &= ~(SDIO_CLKCR_CLKDIV_MASK|SDIO_CLKCR_PWRSAV|SDIO_CLKCR_BYPASS|
+ SDIO_CLKCR_WIDBUS_MASK|SDIO_CLKCR_NEGEDGE|SDIO_CLKCR_HWFC_EN);
+
+ /* Replace with user provided settings */
+
+ clkcr &= (SDIO_CLKCR_CLKDIV_MASK|SDIO_CLKCR_PWRSAV|SDIO_CLKCR_BYPASS|
+ SDIO_CLKCR_WIDBUS_MASK|SDIO_CLKCR_NEGEDGE|SDIO_CLKCR_HWFC_EN);
+ regval |= clkcr;
+ putreg32(regval, STM32_SDIO_CLKCR);
+}
+
+/****************************************************************************
+ * Name: stm32_enableint
+ *
+ * Description:
+ * Enable SDIO interrupts
+ *
+ * Input Parameters:
+ * bitset - The set of bits in the SDIO MASK register to set
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static inline void stm32_enableint(uint32 bitset)
+{
+ uint32 regval;
+ regval = getreg32(STM32_SDIO_MASK);
+ regval |= bitset;
+ putreg32(regval, STM32_SDIO_MASK);
+}
+
+/****************************************************************************
+ * Name: stm32_disableint
+ *
+ * Description:
+ * Disable SDIO interrupts
+ *
+ * Input Parameters:
+ * bitset - The set of bits in the SDIO MASK register to clear
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static inline void stm32_disableint(uint32 bitset)
+{
+ uint32 regval;
+ regval = getreg32(STM32_SDIO_MASK);
+ regval &= ~bitset;
+ putreg32(regval, STM32_SDIO_MASK);
+}
+
+/****************************************************************************
+ * Name: stm32_setpwrctrl
+ *
+ * Description:
+ * Change the PWRCTRL field of the SDIO POWER register to turn the SDIO
+ * ON or OFF
+ *
+ * Input Parameters:
+ * clkcr - A new PWRCTRL setting
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static void stm32_setpwrctrl(uint32 pwrctrl)
+{
+ uint32 regval;
+
+ regval = getreg32(STM32_SDIO_POWER);
+ regval &= ~SDIO_POWER_PWRCTRL_MASK;
+ regval |= pwrctrl;
+ putreg32(regval, STM32_SDIO_POWER);
+}
+
+/****************************************************************************
+ * Name: stm32_getpwrctrl
+ *
+ * Description:
+ * Return the current value of the the PWRCTRL field of the SDIO POWER
+ * register. This function can be used to see the the SDIO is power ON
+ * or OFF
+ *
+ * Input Parameters:
+ * None
+ *
+ * Returned Value:
+ * The current value of the the PWRCTRL field of the SDIO POWER register.
+ *
+ ****************************************************************************/
+
+static inline uint32 stm32_getpwrctrl(void)
+{
+ return getreg32(STM32_SDIO_POWER) & SDIO_POWER_PWRCTRL_MASK;
+}
+
+/****************************************************************************
+ * SDIO Interface Methods
+ ****************************************************************************/
+/****************************************************************************
+ * Name: stm32_reset
+ *
+ * Description:
+ * Reset the MMC/SD controller. Undo all setup and initialization.
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static void stm32_reset(FAR struct sdio_dev_s *dev)
+{
+}
+
+/****************************************************************************
+ * Name: stm32_status
+ *
+ * Description:
+ * Get MMC/SD status.
+ *
+ * Input Parameters:
+ * dev - Device-specific state data
+ *
+ * Returned Value:
+ * Returns a bitset of status values (see stm32_status_* defines)
+ *
+ ****************************************************************************/
+
+static ubyte stm32_status(FAR struct sdio_dev_s *dev)
+{
+ return 0;
+}
+
+/****************************************************************************
+ * Name: SDIO_WIDEBUS
+ *
+ * Description:
+ * Called after change in Bus width has been selected (via ACMD6). Most
+ * controllers will need to perform some special operations to work
+ * correctly in the new bus mode.
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * wide - TRUE: wide bus (4-bit) bus mode enabled
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static void stm32_widebus(FAR struct sdio_dev_s *dev, boolean wide)
+{
+}
+
+/****************************************************************************
+ * Name: stm32_clock
+ *
+ * Description:
+ * Enable/disable MMC/SD clocking
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * rate - Specifies the clocking to use (see enum sdio_clock_e)
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static void stm32_clock(FAR struct sdio_dev_s *dev, enum sdio_clock_e rate)
+{
+}
+
+/****************************************************************************
+ * Name: stm32_setblocklen
+ *
+ * Description:
+ * Set the MMC/SD block length and block count
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * blocklen - The block length
+ * nblocks - The block count
+ *
+ * Returned Value:
+ * OK on success; negated errno on failure
+ *
+ ****************************************************************************/
+
+static int stm32_setblocklen(FAR struct sdio_dev_s *dev, int blocklen, int nblocks)
+{
+ return -ENOSYS;
+}
+
+/****************************************************************************
+ * Name: stm32_attach
+ *
+ * Description:
+ * Attach and prepare interrupts
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ *
+ * Returned Value:
+ * OK on success; A negated errno on failure.
+ *
+ ****************************************************************************/
+
+static int stm32_attach(FAR struct sdio_dev_s *dev)
+{
+ return -ENOSYS;
+}
+
+/****************************************************************************
+ * Name: stm32_sendcmd
+ *
+ * Description:
+ * Send the MMC/SD command
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * cmd - The command to send (32-bits, encoded)
+ * arg - 32-bit argument required with some commands
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static void stm32_sendcmd(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 arg)
+{
+ uint32 regval;
uint32 cmdidx = (cmd & MMCSD_CMDIDX_MASK) >> MMCSD_CMDIDX_SHIFT;
- +
/* Set the SDIO Argument value */
- - putreg32(arg, STM32_SDIO_ARG); - +
+ putreg32(arg, STM32_SDIO_ARG);
+
/* Clear CMDINDEX, WAITRESP, WAITINT, WAITPEND, and CPSMEN bits */
- +
regval = getreg32(STM32_SDIO_CMD);
- regval &= ~(SDIO_CMD_CMDINDEX_MASK|SDIO_CMD_WAITRESP_MASK| - SDIO_CMD_WAITINT|SDIO_CMD_WAITPEND|SDIO_CMD_CPSMEN); - - /* Set WAITRESP bits */ - - switch ((cmd & MMCSD_RESPONSE_MASK) >> MMCSD_RESPONSE_SHIFT) - { - case MMCSD_NO_RESPONSE: - regval |= SDIO_CMD_NORESPONSE; - break; - - case MMCSD_R1_RESPONSE: - case MMCSD_R1B_RESPONSE: - case MMCSD_R3_RESPONSE: - case MMCSD_R4_RESPONSE: - case MMCSD_R5_RESPONSE: - case MMCSD_R6_RESPONSE: - case MMCSD_R7_RESPONSE: - regval |= SDIO_CMD_SHORTRESPONSE; - break; - - case MMCSD_R2_RESPONSE: - regval |= SDIO_CMD_LONGRESPONSE; - break; - } - - /* Set CPSMEN and the command index */ + regval &= ~(SDIO_CMD_CMDINDEX_MASK|SDIO_CMD_WAITRESP_MASK|
+ SDIO_CMD_WAITINT|SDIO_CMD_WAITPEND|SDIO_CMD_CPSMEN);
+
+ /* Set WAITRESP bits */
+
+ switch ((cmd & MMCSD_RESPONSE_MASK) >> MMCSD_RESPONSE_SHIFT)
+ {
+ case MMCSD_NO_RESPONSE:
+ regval |= SDIO_CMD_NORESPONSE;
+ break;
+
+ case MMCSD_R1_RESPONSE:
+ case MMCSD_R1B_RESPONSE:
+ case MMCSD_R3_RESPONSE:
+ case MMCSD_R4_RESPONSE:
+ case MMCSD_R5_RESPONSE:
+ case MMCSD_R6_RESPONSE:
+ case MMCSD_R7_RESPONSE:
+ regval |= SDIO_CMD_SHORTRESPONSE;
+ break;
+
+ case MMCSD_R2_RESPONSE:
+ regval |= SDIO_CMD_LONGRESPONSE;
+ break;
+ }
+
+ /* Set CPSMEN and the command index */
cmdidx = (cmd & MMCSD_CMDIDX_MASK) >> MMCSD_CMDIDX_SHIFT;
regval |= cmdidx | SDIO_CMD_CPSMEN;
/* Write the SDIO CMD */
- putreg32(regval, STM32_SDIO_CMD); -} - -/**************************************************************************** - * Name: stm32_senddata - * - * Description: - * Send more MMC/SD data - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * data - Data to be sent - * - * Returned Value: - * Number of bytes sent on succes; a negated errno on failure - * - ****************************************************************************/ - -static int stm32_senddata(FAR struct sdio_dev_s *dev, FAR const ubyte *buffer) -{ - return -ENOSYS; -} - -/**************************************************************************** - * Name: stm32_recvRx - * - * Description: - * Receive response to MMC/SD command - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * buffer - Buffer in which to receive the response - * - * Returned Value: - * Number of bytes sent on succes; a negated errno on failure - * - ****************************************************************************/ - -static int stm32_recvR1(FAR struct sdio_dev_s *dev, uint16 buffer[3]) -{ - return -ENOSYS; -} - -static int stm32_recvR2(FAR struct sdio_dev_s *dev, uint16 buffer[8]) -{ - return -ENOSYS; -} - -static int stm32_recvR3(FAR struct sdio_dev_s *dev, uint16 buffer[3]) -{ - return -ENOSYS; -} - -static int stm32_recvR4(FAR struct sdio_dev_s *dev, uint16 buffer[3]) -{ - return -ENOSYS; -} - -static int stm32_recvR5(FAR struct sdio_dev_s *dev, uint16 buffer[3]) -{ - return -ENOSYS; -} - -static int stm32_recvR6(FAR struct sdio_dev_s *dev, uint16 buffer[3]) -{ - return -ENOSYS; -} - -/**************************************************************************** - * Name: stm32_recvdata - * - * Description: - * Receive data from MMC/SD - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * buffer - Buffer in which to receive the data - * - * Returned Value: - * Number of bytes sent on succes; a negated errno on failure - * - ****************************************************************************/ - -static int stm32_recvdata(FAR struct sdio_dev_s *dev, FAR ubyte *buffer) -{ - return -ENOSYS; -} - -/**************************************************************************** - * Name: stm32_eventenable - * - * Description: - * Enable/disable notification of a set of MMC/SD events - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * eventset - A bitset of events to enable or disable (see MMCSDEVENT_* - * definitions - * enable - TRUE: enable event; FALSE: disable events - * - * Returned Value: - * None - * - ****************************************************************************/ - -static void stm32_eventenable(FAR struct sdio_dev_s *dev, ubyte eventset, - boolean enable) -{ -} - -/**************************************************************************** - * Name: stm32_eventwait - * - * Description: - * Wait for one of the enabled events to occur (or a timeout) - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * timeout - Maximum time in milliseconds to wait. Zero means no timeout. - * - * Returned Value: - * Event set containing the event(s) that ended the wait. If no events the - * returned event set is zero, then the wait was terminated by the timeout. - * - ****************************************************************************/ - -static ubyte stm32_eventwait(FAR struct sdio_dev_s *dev, uint32 timeout) -{ - return 0; -} - -/**************************************************************************** - * Name: stm32_events - * - * Description: - * Return the current event set. This supports polling for MMC/SD (vs. - * waiting). - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * - * Returned Value: - * Event set containing the current events (cleared after reading). - * - ****************************************************************************/ - -static ubyte stm32_events(FAR struct sdio_dev_s *dev) -{ - return 0; -} - -/**************************************************************************** - * Name: stm32_dmasupported - * - * Description: - * Return TRUE if the hardware can support DMA - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * - * Returned Value: - * TRUE if DMA is supported. - * - ****************************************************************************/ - -#ifdef CONFIG_SDIO_DMA -static boolean stm32_dmasupported(FAR struct sdio_dev_s *dev) -{ - return FALSE; -} -#endif - -/**************************************************************************** - * Name: stm32_coherent - * - * Description: - * If the processor supports a data cache, then this method will make sure - * that the contents of the DMA memory and the data cache are coherent in - * preparation for the DMA transfer. For write transfers, this may mean - * flushing the data cache, for read transfers this may mean invalidating - * the data cache. - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * addr - The beginning address of the DMA - * len - The length of the DMA - * write - TRUE: A write DMA will be performed; FALSE: a read DMA will be - * performed. - * - * Returned Value: - * None - * - ****************************************************************************/ - -#if defined(CONFIG_SDIO_DMA) && defined(CONFIG_DATA_CACHE) -static void stm32_coherent(FAR struct sdio_dev_s *dev, FAR void *addr, - size_t len, boolean write) -{ -} -#endif - -/**************************************************************************** - * Name: stm32_dmareadsetup - * - * Description: - * Setup to perform a read DMA - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * buffer - The memory to DMA from - * - * Returned Value: - * OK on succes; a negated errno on failure - * - ****************************************************************************/ - -#ifdef CONFIG_SDIO_DMA -static int tm32_dmareadsetup(FAR struct sdio_dev_s *dev, FAR ubyte *buffer) -{ - return -ENOSYS; -} -#endif - -/**************************************************************************** - * Name: stm32_dmawritesetup - * - * Description: - * Setup to perform a write DMA - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * buffer - The memory to DMA into - * - * Returned Value: - * OK on succes; a negated errno on failure - * - ****************************************************************************/ - -#ifdef CONFIG_SDIO_DMA -static int stm32_dmawritesetup(FAR struct sdio_dev_s *dev, - FAR const ubyte *buffer) -{ - return -ENOSYS; -} -#endif - -/**************************************************************************** - * Name: stm32_dmastart - * - * Description: - * Start the DMA - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * - * Returned Value: - * OK on succes; a negated errno on failure - * - ****************************************************************************/ - -#ifdef CONFIG_SDIO_DMA -static int stm32_dmastart(FAR struct sdio_dev_s *dev) -{ - return -ENOSYS; -} -#endif - -/**************************************************************************** - * Name: stm32_dmastop - * - * Description: - * Stop the DMA - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * - * Returned Value: - * OK on succes; a negated errno on failure - * - ****************************************************************************/ - -#ifdef CONFIG_SDIO_DMA -static int stm32_dmastop(FAR struct sdio_dev_s *dev) -{ - return -ENOSYS; -} -#endif - -/**************************************************************************** - * Name: stm32_dmastatus - * - * Description: - * Returnt the number of bytes remaining in the DMA transfer - * - * Input Parameters: - * dev - An instance of the MMC/SD device interface - * remaining - A pointer to location in which to return the number of bytes - * remaining in the transfer. - * - * Returned Value: - * OK on succes; a negated errno on failure - * - ****************************************************************************/ - -#ifdef CONFIG_SDIO_DMA -static int stm32_dmastatus(FAR struct sdio_dev_s *dev, size_t *remaining) -{ -#ifdef CONFIG_DEBUG - if (remaining) - { - *remaining = getreg32(STM32_SDIO_DCOUNT); - return OK; - } - return -EINVAL; -#else - *remaining = getreg32(STM32_SDIO_DCOUNT); - return OK; -#endif -} -#endif - -/**************************************************************************** - * Initialization/uninitialization/reset - ****************************************************************************/ -/**************************************************************************** - * Name: stm32_default - * - * Description: - * Restore SDIO registers to their default, reset values - * - ****************************************************************************/ - -static void stm32_default(void) -{ - putreg32(SDIO_POWER_RESET, STM32_SDIO_POWER); - putreg32(SDIO_CLKCR_RESET, STM32_SDIO_CLKCR); - putreg32(SDIO_ARG_RESET, STM32_SDIO_ARG); - putreg32(SDIO_CMD_RESET, STM32_SDIO_CMD); - putreg32(SDIO_DTIMER_RESET, STM32_SDIO_DTIMER); - putreg32(SDIO_DLEN_RESET, STM32_SDIO_DLEN); - putreg32(SDIO_DCTRL_RESET, STM32_SDIO_DCTRL); - putreg32(SDIO_ICR_RESET, STM32_SDIO_ICR); - putreg32(SDIO_MASK_RESET, STM32_SDIO_MASK); -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: mmcsd_slotinitialize - * - * Description: - * Initialize one slot for operation using the MMC/SD interface - * - * Input Parameters: - * minor - The MMC/SD minor device number. The MMC/SD device will be - * registered as /dev/mmcsdN where N is the minor number - * slotno - The slot number to use. This is only meaningful for architectures - * that support multiple MMC/SD slots. This value must be in the range - * {0, ..., CONFIG_MMCSD_NSLOTS}. - * dev - And instance of an MMC/SD interface. The MMC/SD hardware should - * be initialized and ready to use. - * - ****************************************************************************/ - -int mmcsd_slotinitialize(int minor, int slotno, FAR struct sdio_dev_s *dev) -{ - return -ENOSYS; -} - + putreg32(regval, STM32_SDIO_CMD);
+}
+
+/****************************************************************************
+ * Name: stm32_senddata
+ *
+ * Description:
+ * Send more MMC/SD data
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * data - Data to be sent
+ *
+ * Returned Value:
+ * Number of bytes sent on succes; a negated errno on failure
+ *
+ ****************************************************************************/
+
+static int stm32_senddata(FAR struct sdio_dev_s *dev, FAR const ubyte *buffer)
+{
+ return -ENOSYS;
+}
+
+/****************************************************************************
+ * Name: stm32_recvRx
+ *
+ * Description:
+ * Receive response to MMC/SD command. Only the critical payload is
+ * returned -- that is 32 bits for 48 bit status and 128 bits for 136 bit
+ * status. The driver implementation should verify the correctness of
+ * the remaining, non-returned bits (CRCs, CMD index, etc.).
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * Rx - Buffer in which to receive the response
+ *
+ * Returned Value:
+ * Number of bytes sent on success; a negated errno on failure
+ *
+ *
+ ****************************************************************************/
+
+static int stm32_recvR1(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R1)
+{
+ return -ENOSYS;
+}
+
+static int stm32_recvR2(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 R2[4])
+{
+ return -ENOSYS;
+}
+
+static int stm32_recvR3(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R3)
+{
+ return -ENOSYS;
+}
+
+static int stm32_recvR4(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R4)
+{
+ return -ENOSYS;
+}
+
+static int stm32_recvR5(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R5)
+{
+ return -ENOSYS;
+}
+
+static int stm32_recvR6(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R6)
+{
+ return -ENOSYS;
+}
+
+static int stm32_recvR7(FAR struct sdio_dev_s *dev, uint32 cmd, uint32 *R7)
+{
+ return -ENOSYS;
+}
+
+/****************************************************************************
+ * Name: stm32_recvdata
+ *
+ * Description:
+ * Receive data from MMC/SD
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * buffer - Buffer in which to receive the data
+ *
+ * Returned Value:
+ * Number of bytes sent on succes; a negated errno on failure
+ *
+ ****************************************************************************/
+
+static int stm32_recvdata(FAR struct sdio_dev_s *dev, FAR ubyte *buffer)
+{
+ return -ENOSYS;
+}
+
+/****************************************************************************
+ * Name: stm32_eventenable
+ *
+ * Description:
+ * Enable/disable notification of a set of MMC/SD events
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * eventset - A bitset of events to enable or disable (see MMCSDEVENT_*
+ * definitions
+ * enable - TRUE: enable event; FALSE: disable events
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static void stm32_eventenable(FAR struct sdio_dev_s *dev, ubyte eventset,
+ boolean enable)
+{
+}
+
+/****************************************************************************
+ * Name: stm32_eventwait
+ *
+ * Description:
+ * Wait for one of the enabled events to occur (or a timeout)
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * timeout - Maximum time in milliseconds to wait. Zero means no timeout.
+ *
+ * Returned Value:
+ * Event set containing the event(s) that ended the wait. If no events the
+ * returned event set is zero, then the wait was terminated by the timeout.
+ *
+ ****************************************************************************/
+
+static ubyte stm32_eventwait(FAR struct sdio_dev_s *dev, uint32 timeout)
+{
+ return 0;
+}
+
+/****************************************************************************
+ * Name: stm32_events
+ *
+ * Description:
+ * Return the current event set. This supports polling for MMC/SD (vs.
+ * waiting).
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ *
+ * Returned Value:
+ * Event set containing the current events (cleared after reading).
+ *
+ ****************************************************************************/
+
+static ubyte stm32_events(FAR struct sdio_dev_s *dev)
+{
+ return 0;
+}
+
+/****************************************************************************
+ * Name: stm32_dmasupported
+ *
+ * Description:
+ * Return TRUE if the hardware can support DMA
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ *
+ * Returned Value:
+ * TRUE if DMA is supported.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SDIO_DMA
+static boolean stm32_dmasupported(FAR struct sdio_dev_s *dev)
+{
+ return FALSE;
+}
+#endif
+
+/****************************************************************************
+ * Name: stm32_coherent
+ *
+ * Description:
+ * If the processor supports a data cache, then this method will make sure
+ * that the contents of the DMA memory and the data cache are coherent in
+ * preparation for the DMA transfer. For write transfers, this may mean
+ * flushing the data cache, for read transfers this may mean invalidating
+ * the data cache.
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * addr - The beginning address of the DMA
+ * len - The length of the DMA
+ * write - TRUE: A write DMA will be performed; FALSE: a read DMA will be
+ * performed.
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+#if defined(CONFIG_SDIO_DMA) && defined(CONFIG_DATA_CACHE)
+static void stm32_coherent(FAR struct sdio_dev_s *dev, FAR void *addr,
+ size_t len, boolean write)
+{
+}
+#endif
+
+/****************************************************************************
+ * Name: stm32_dmareadsetup
+ *
+ * Description:
+ * Setup to perform a read DMA
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * buffer - The memory to DMA from
+ *
+ * Returned Value:
+ * OK on succes; a negated errno on failure
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SDIO_DMA
+static int tm32_dmareadsetup(FAR struct sdio_dev_s *dev, FAR ubyte *buffer)
+{
+ return -ENOSYS;
+}
+#endif
+
+/****************************************************************************
+ * Name: stm32_dmawritesetup
+ *
+ * Description:
+ * Setup to perform a write DMA
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * buffer - The memory to DMA into
+ *
+ * Returned Value:
+ * OK on succes; a negated errno on failure
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SDIO_DMA
+static int stm32_dmawritesetup(FAR struct sdio_dev_s *dev,
+ FAR const ubyte *buffer)
+{
+ return -ENOSYS;
+}
+#endif
+
+/****************************************************************************
+ * Name: stm32_dmastart
+ *
+ * Description:
+ * Start the DMA
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ *
+ * Returned Value:
+ * OK on succes; a negated errno on failure
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SDIO_DMA
+static int stm32_dmastart(FAR struct sdio_dev_s *dev)
+{
+ return -ENOSYS;
+}
+#endif
+
+/****************************************************************************
+ * Name: stm32_dmastop
+ *
+ * Description:
+ * Stop the DMA
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ *
+ * Returned Value:
+ * OK on succes; a negated errno on failure
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SDIO_DMA
+static int stm32_dmastop(FAR struct sdio_dev_s *dev)
+{
+ return -ENOSYS;
+}
+#endif
+
+/****************************************************************************
+ * Name: stm32_dmastatus
+ *
+ * Description:
+ * Returnt the number of bytes remaining in the DMA transfer
+ *
+ * Input Parameters:
+ * dev - An instance of the MMC/SD device interface
+ * remaining - A pointer to location in which to return the number of bytes
+ * remaining in the transfer.
+ *
+ * Returned Value:
+ * OK on succes; a negated errno on failure
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SDIO_DMA
+static int stm32_dmastatus(FAR struct sdio_dev_s *dev, size_t *remaining)
+{
+#ifdef CONFIG_DEBUG
+ if (remaining)
+ {
+ *remaining = getreg32(STM32_SDIO_DCOUNT);
+ return OK;
+ }
+ return -EINVAL;
+#else
+ *remaining = getreg32(STM32_SDIO_DCOUNT);
+ return OK;
+#endif
+}
+#endif
+
+/****************************************************************************
+ * Initialization/uninitialization/reset
+ ****************************************************************************/
+/****************************************************************************
+ * Name: stm32_default
+ *
+ * Description:
+ * Restore SDIO registers to their default, reset values
+ *
+ ****************************************************************************/
+
+static void stm32_default(void)
+{
+ putreg32(SDIO_POWER_RESET, STM32_SDIO_POWER);
+ putreg32(SDIO_CLKCR_RESET, STM32_SDIO_CLKCR);
+ putreg32(SDIO_ARG_RESET, STM32_SDIO_ARG);
+ putreg32(SDIO_CMD_RESET, STM32_SDIO_CMD);
+ putreg32(SDIO_DTIMER_RESET, STM32_SDIO_DTIMER);
+ putreg32(SDIO_DLEN_RESET, STM32_SDIO_DLEN);
+ putreg32(SDIO_DCTRL_RESET, STM32_SDIO_DCTRL);
+ putreg32(SDIO_ICR_RESET, STM32_SDIO_ICR);
+ putreg32(SDIO_MASK_RESET, STM32_SDIO_MASK);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: mmcsd_slotinitialize
+ *
+ * Description:
+ * Initialize one slot for operation using the MMC/SD interface
+ *
+ * Input Parameters:
+ * minor - The MMC/SD minor device number. The MMC/SD device will be
+ * registered as /dev/mmcsdN where N is the minor number
+ * slotno - The slot number to use. This is only meaningful for architectures
+ * that support multiple MMC/SD slots. This value must be in the range
+ * {0, ..., CONFIG_MMCSD_NSLOTS}.
+ * dev - And instance of an MMC/SD interface. The MMC/SD hardware should
+ * be initialized and ready to use.
+ *
+ ****************************************************************************/
+
+int mmcsd_slotinitialize(int minor, int slotno, FAR struct sdio_dev_s *dev)
+{
+ return -ENOSYS;
+}
+
diff --git a/nuttx/arch/arm/src/stm32/stm32_sdio.h b/nuttx/arch/arm/src/stm32/stm32_sdio.h index e83466cbf..8c7f84391 100755 --- a/nuttx/arch/arm/src/stm32/stm32_sdio.h +++ b/nuttx/arch/arm/src/stm32/stm32_sdio.h @@ -96,10 +96,10 @@ /* Register Bitfield Definitions ****************************************************/ #define SDIO_POWER_PWRCTRL_SHIFT (0) /* Bits 0-1: Power supply control bits */ -#define SDIO_POWER_PWRCTRL_MASK (3 << POWER_PWRCTRL_SHIFT) -# define SDIO_POWER_PWRCTRL_OFF (0 << POWER_PWRCTRL_SHIFT) /* 00: Power-off: card clock stopped */ -# define SDIO_POWER_PWRCTRL_PWRUP (2 << POWER_PWRCTRL_SHIFT) /* 10: Reserved power-up */ -# define SDIO_POWER_PWRCTRL_ON (3 << POWER_PWRCTRL_SHIFT) /* 11: Power-on: card is clocked */ +#define SDIO_POWER_PWRCTRL_MASK (3 << SDIO_POWER_PWRCTRL_SHIFT) +# define SDIO_POWER_PWRCTRL_OFF (0 << SDIO_POWER_PWRCTRL_SHIFT) /* 00: Power-off: card clock stopped */ +# define SDIO_POWER_PWRCTRL_PWRUP (2 << SDIO_POWER_PWRCTRL_SHIFT) /* 10: Reserved power-up */ +# define SDIO_POWER_PWRCTRL_ON (3 << SDIO_POWER_PWRCTRL_SHIFT) /* 11: Power-on: card is clocked */ #define SDIO_POWER_RESET (0) /* Reset value */ @@ -217,7 +217,7 @@ #define SDIO_ICR_CEATAENDC (1 << 23) /* Bit 23: CEATAEND flag clear bit */ #define SDIO_ICR_RESET 0x00c007ff -#define SDIO_ICR_STATICFLAGS 0x000005ff
+#define SDIO_ICR_STATICFLAGS 0x000005ff #define SDIO_MASK_CCRCFAILIE (1 << 0) /* Bit 0: Command CRC fail interrupt enable */ #define SDIO_MASK_DCRCFAILIE (1 << 1) /* Bit 1: Data CRC fail interrupt enable */ |