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-rw-r--r--nuttx/arch/arm/src/stm32/chip/stm32_spi.h8
-rw-r--r--nuttx/arch/arm/src/stm32/stm32_i2c.c6
-rw-r--r--nuttx/arch/arm/src/stm32/stm32_otgfsdev.c129
-rw-r--r--nuttx/arch/arm/src/stm32/stm32_serial.c12
-rw-r--r--nuttx/arch/arm/src/stm32/stm32_spi.c51
-rw-r--r--nuttx/arch/arm/src/stm32/stm32_usbdev.c14
6 files changed, 139 insertions, 81 deletions
diff --git a/nuttx/arch/arm/src/stm32/chip/stm32_spi.h b/nuttx/arch/arm/src/stm32/chip/stm32_spi.h
index d80c447bb..7731d03b0 100644
--- a/nuttx/arch/arm/src/stm32/chip/stm32_spi.h
+++ b/nuttx/arch/arm/src/stm32/chip/stm32_spi.h
@@ -47,7 +47,13 @@
* Pre-processor Definitions
************************************************************************************/
-#define STM32_SPI_CLK_MAX 18000000UL /* Maximum allowed speed as per specifications for all SPIs */
+/* Maximum allowed speed as per specifications for all SPIs */
+
+#if defined(CONFIG_STM32_STM32F40XX)
+# define STM32_SPI_CLK_MAX 37500000UL
+#else
+# define STM32_SPI_CLK_MAX 18000000UL
+#endif
/* Register Offsets *****************************************************************/
diff --git a/nuttx/arch/arm/src/stm32/stm32_i2c.c b/nuttx/arch/arm/src/stm32/stm32_i2c.c
index a4b10b55c..0062c072b 100644
--- a/nuttx/arch/arm/src/stm32/stm32_i2c.c
+++ b/nuttx/arch/arm/src/stm32/stm32_i2c.c
@@ -141,7 +141,7 @@
#endif
/* I2C event trace logic. NOTE: trace uses the internal, non-standard, low-level
- * debug interface lib_rawprintf() but does not require that any other debug
+ * debug interface syslog() but does not require that any other debug
* is enabled.
*/
@@ -866,11 +866,11 @@ static void stm32_i2c_tracedump(FAR struct stm32_i2c_priv_s *priv)
struct stm32_trace_s *trace;
int i;
- lib_rawprintf("Elapsed time: %d\n", clock_systimer() - priv->start_time);
+ syslog("Elapsed time: %d\n", clock_systimer() - priv->start_time);
for (i = 0; i <= priv->tndx; i++)
{
trace = &priv->trace[i];
- lib_rawprintf("%2d. STATUS: %08x COUNT: %3d EVENT: %2d PARM: %08x TIME: %d\n",
+ syslog("%2d. STATUS: %08x COUNT: %3d EVENT: %2d PARM: %08x TIME: %d\n",
i+1, trace->status, trace->count, trace->event, trace->parm,
trace->time - priv->start_time);
}
diff --git a/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c b/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c
index 94772b693..bcce3ce60 100644
--- a/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c
+++ b/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c
@@ -146,15 +146,6 @@
# error "CONFIG_USBDEV_EP3_TXFIFO_SIZE is out of range"
#endif
-/* REVISIT! This forces a hack that polls DTXFSTS for space in the Tx FIFO.
- * Enabling this option is a BAD thing. It will cause inline waits inside
- * of the USB interrupt handler. The correct way to handle this is to
- * enable the correct TxFIFO interrupt and wait until the Tx FIFO is empty.
- * Unfortunately, the interrupt driven logic is not working... Please fix!
- */
-
-#define ENABLE_DTXFSTS_POLLHACK 1
-
/* Debug ***********************************************************************/
/* Trace error codes */
@@ -184,8 +175,9 @@
#define STM32_TRACEERR_NOEP 0x18
#define STM32_TRACEERR_NOTCONFIGURED 0x19
#define STM32_TRACEERR_EPOUTQEMPTY 0x1a
-#define STM32_TRACEERR_EPINQEMPTY 0x1b
+#define STM32_TRACEERR_EPINREQEMPTY 0x1b
#define STM32_TRACEERR_NOOUTSETUP 0x1c
+#define STM32_TRACEERR_POLLTIMEOUT 0x1d
/* Trace interrupt codes */
@@ -432,7 +424,6 @@ struct stm32_usbdev_s
uint8_t stalled:1; /* 1: Protocol stalled */
uint8_t selfpowered:1; /* 1: Device is self powered */
- uint8_t connected:1; /* 1: Host connected */
uint8_t addressed:1; /* 1: Peripheral address has been set */
uint8_t configured:1; /* 1: Class driver has been configured */
uint8_t wakeup:1; /* 1: Device remote wake-up */
@@ -508,7 +499,7 @@ static void stm32_ep0out_ctrlsetup(FAR struct stm32_usbdev_s *priv);
static void stm32_txfifo_write(FAR struct stm32_ep_s *privep,
FAR uint8_t *buf, int nbytes);
static void stm32_epin_transfer(FAR struct stm32_ep_s *privep,
- FAR uint8_t *buf, int nbytes);
+ FAR uint8_t *buf, int nbytes);
static void stm32_epin_request(FAR struct stm32_usbdev_s *priv,
FAR struct stm32_ep_s *privep);
@@ -962,7 +953,7 @@ static void stm32_txfifo_write(FAR struct stm32_ep_s *privep,
regval |= ((uint32_t)*buf++) << 16;
regval |= ((uint32_t)*buf++) << 24;
- /* Then write the packed data to the TxFIFO */
+ /* Then write the packet data to the TxFIFO */
stm32_putreg(regval, regaddr);
}
@@ -1082,9 +1073,6 @@ static void stm32_epin_request(FAR struct stm32_usbdev_s *priv,
struct stm32_req_s *privreq;
uint32_t regaddr;
uint32_t regval;
-#ifdef ENABLE_DTXFSTS_POLLHACK
- int32_t timeout;
-#endif
uint8_t *buf;
int nbytes;
int nwords;
@@ -1113,7 +1101,7 @@ static void stm32_epin_request(FAR struct stm32_usbdev_s *priv,
privreq = stm32_rqpeek(privep);
if (!privreq)
{
- usbtrace(TRACE_DEVERROR(STM32_TRACEERR_EPINQEMPTY), privep->epphy);
+ usbtrace(TRACE_DEVERROR(STM32_TRACEERR_EPINREQEMPTY), privep->epphy);
/* There is no TX transfer in progress and no new pending TX
* requests to send. To stop transmitting any data on a particular
@@ -1151,13 +1139,20 @@ static void stm32_epin_request(FAR struct stm32_usbdev_s *priv,
privep->zlp = true;
}
- /* Loop while there are still bytes to be transferred (or a zero-length-
- * packet, ZLP, to be sent). The loop will also be terminated if there
- * is insufficient space remaining in the TxFIFO to send a complete
- * packet.
+ /* Add one more packet to the TxFIFO. We will wait for the transfer
+ * complete event before we add the next packet (or part of a packet
+ * to the TxFIFO).
+ *
+ * The documentation says that we can can multiple packets to the TxFIFO,
+ * but it seems that we need to get the transfer complete event before
+ * we can add the next (or maybe I have got something wrong?)
*/
+#if 0
while (privreq->req.xfrd < privreq->req.len || privep->zlp)
+#else
+ if (privreq->req.xfrd < privreq->req.len || privep->zlp)
+#endif
{
/* Get the number of bytes left to be sent in the request */
@@ -1219,25 +1214,9 @@ static void stm32_epin_request(FAR struct stm32_usbdev_s *priv,
regaddr = STM32_OTGFS_DTXFSTS(privep->epphy);
-#ifdef ENABLE_DTXFSTS_POLLHACK
- /* If ENABLE_DTXFSTS_POLLHACK is enabled , then poll DTXFSTS until
- * space in the TxFIFO is available. If it doesn't become available,
- * in a reasonable amount of time, then just pretend that it is.
- */
-
- for (timeout = 250000; timeout > 0; timeout--)
- {
- regval = stm32_getreg(regaddr);
- if ((regval & OTGFS_DTXFSTS_MASK) >= nwords)
- {
- break;
- }
- }
-#else
- /* If ENABLE_DTXFSTS_POLLHACK is not enabled, then check once for
- * space in the TxFIFO. If space in the TxFIFO is not available,
- * then set up an interrupt to resume the transfer when the TxFIFO
- * is empty.
+ /* Check for space in the TxFIFO. If space in the TxFIFO is not
+ * available, then set up an interrupt to resume the transfer when
+ * the TxFIFO is empty.
*/
regval = stm32_getreg(regaddr);
@@ -1253,11 +1232,12 @@ static void stm32_epin_request(FAR struct stm32_usbdev_s *priv,
empmsk |= OTGFS_DIEPEMPMSK(privep->epphy);
stm32_putreg(empmsk, STM32_OTGFS_DIEPEMPMSK);
- /* Terminate the transfer loop */
+ /* Terminate the transfer. We will try again when the TxFIFO empty
+ * interrupt is received.
+ */
- break;
+ return;
}
-#endif
/* Transfer data to the TxFIFO */
@@ -1290,11 +1270,12 @@ static void stm32_epin_request(FAR struct stm32_usbdev_s *priv,
if (privreq->req.xfrd >= privreq->req.len && !privep->zlp)
{
usbtrace(TRACE_COMPLETE(privep->epphy), privreq->req.xfrd);
- stm32_req_complete(privep, OK);
- /* The endpoint is no longer transferring data */
+ /* We are finished with the request (although the transfer has not
+ * yet completed).
+ */
- privep->active = false;
+ stm32_req_complete(privep, OK);
}
}
@@ -2690,7 +2671,7 @@ static inline void stm32_epin_txfifoempty(FAR struct stm32_usbdev_s *priv, int e
FAR struct stm32_ep_s *privep = &priv->epin[epno];
/* Continue processing the write request queue. This may mean sending
- * more dat from the exisiting request or terminating the current requests
+ * more data from the exisiting request or terminating the current requests
* and (perhaps) starting the IN transfer from the next write request.
*/
@@ -2741,9 +2722,11 @@ static inline void stm32_epin_interrupt(FAR struct stm32_usbdev_s *priv)
mask = stm32_getreg(STM32_OTGFS_DIEPMSK);
- /* Check for FIFO not empty. Bits n corresponds to endpoint n.
- * That condition corresponds to bit 7 of the DIEPINT interrupt
- * status register.
+ /* Check if the TxFIFO not empty interrupt is enabled for this
+ * endpoint in the DIEPMSK register. Bits n corresponds to
+ * endpoint n in the register. That condition corresponds to
+ * bit 7 of the DIEPINT interrupt status register. There is
+ * no TXFE bit in the mask register, so we fake one here.
*/
empty = stm32_getreg(STM32_OTGFS_DIEPEMPMSK);
@@ -2763,11 +2746,13 @@ static inline void stm32_epin_interrupt(FAR struct stm32_usbdev_s *priv)
if ((diepint & OTGFS_DIEPINT_XFRC) != 0)
{
- usbtrace(TRACE_INTDECODE(STM32_TRACEINTID_EPIN_XFRC), (uint16_t)diepint);
+ usbtrace(TRACE_INTDECODE(STM32_TRACEINTID_EPIN_XFRC),
+ (uint16_t)diepint);
- /* It is possible that logic may be waiting for a the TxFIFO to become
- * empty. We disable the TxFIFO empty interrupt here; it will be
- * re-enabled if there is still insufficient space in the TxFIFO.
+ /* It is possible that logic may be waiting for a the
+ * TxFIFO to become empty. We disable the TxFIFO empty
+ * interrupt here; it will be re-enabled if there is still
+ * insufficient space in the TxFIFO.
*/
empty &= ~OTGFS_DIEPEMPMSK(epno);
@@ -2828,7 +2813,7 @@ static inline void stm32_epin_interrupt(FAR struct stm32_usbdev_s *priv)
usbtrace(TRACE_INTDECODE(STM32_TRACEINTID_EPIN_TXFE), (uint16_t)diepint);
/* If we were waiting for TxFIFO to become empty, the we might have both
- * XFRC and TXFE interrups pending. Since we do the same thing for both
+ * XFRC and TXFE interrupts pending. Since we do the same thing for both
* cases, ignore the TXFE if we have already processed the XFRC.
*/
@@ -2886,6 +2871,13 @@ static inline void stm32_resumeinterrupt(FAR struct stm32_usbdev_s *priv)
/* Restore full power -- whatever that means for this particular board */
stm32_usbsuspend((struct usbdev_s *)priv, true);
+
+ /* Notify the class driver of the resume event */
+
+ if (priv->driver)
+ {
+ CLASS_RESUME(priv->driver, &priv->usbdev);
+ }
}
/*******************************************************************************
@@ -2900,7 +2892,16 @@ static inline void stm32_suspendinterrupt(FAR struct stm32_usbdev_s *priv)
{
#ifdef CONFIG_USBDEV_LOWPOWER
uint32_t regval;
+#endif
+
+ /* Notify the class driver of the suspend event */
+
+ if (priv->driver)
+ {
+ CLASS_SUSPEND(priv->driver, &priv->usbdev);
+ }
+#ifdef CONFIG_USBDEV_LOWPOWER
/* OTGFS_DSTS_SUSPSTS is set as long as the suspend condition is detected
* on USB. Check if we are still have the suspend condition, that we are
* connected to the host, and that we have been configured.
@@ -2908,9 +2909,7 @@ static inline void stm32_suspendinterrupt(FAR struct stm32_usbdev_s *priv)
regval = stm32_getreg(STM32_OTGFS_DSTS);
- if ((regval & OTGFS_DSTS_SUSPSTS) != 0 &&
- priv->connected &&
- devstate == DEVSTATE_CONFIGURED)
+ if ((regval & OTGFS_DSTS_SUSPSTS) != 0 && devstate == DEVSTATE_CONFIGURED)
{
/* Switch off OTG FS clocking. Setting OTGFS_PCGCCTL_STPPCLK stops the
* PHY clock.
@@ -4957,8 +4956,9 @@ static void stm32_hwinitialize(FAR struct stm32_usbdev_s *priv)
/* At startup the core is in FS mode. */
- /* Disable the USB global interrupt by clearing GINTMSK in the global OTG
- * FS AHB configuration register.
+ /* Disable global interrupts by clearing the GINTMASK bit in the GAHBCFG
+ * register; Set the TXFELVL bit in the GAHBCFG register so that TxFIFO
+ * interrupts will occur when the TxFIFO is truly empty (not just half full).
*/
stm32_putreg(OTGFS_GAHBCFG_TXFELVL, STM32_OTGFS_GAHBCFG);
@@ -5074,6 +5074,7 @@ static void stm32_hwinitialize(FAR struct stm32_usbdev_s *priv)
stm32_putreg(0, STM32_OTGFS_DIEPMSK);
stm32_putreg(0, STM32_OTGFS_DOEPMSK);
+ stm32_putreg(0, STM32_OTGFS_DIEPEMPMSK);
stm32_putreg(0xffffffff, STM32_OTGFS_DAINT);
stm32_putreg(0, STM32_OTGFS_DAINTMSK);
@@ -5155,10 +5156,13 @@ static void stm32_hwinitialize(FAR struct stm32_usbdev_s *priv)
stm32_putreg(regval, STM32_OTGFS_GINTMSK);
/* Enable the USB global interrupt by setting GINTMSK in the global OTG
- * FS AHB configuration register.
+ * FS AHB configuration register; Set the TXFELVL bit in the GAHBCFG
+ * register so that TxFIFO interrupts will occur when the TxFIFO is truly
+ * empty (not just half full).
*/
- stm32_putreg(OTGFS_GAHBCFG_GINTMSK | OTGFS_GAHBCFG_TXFELVL, STM32_OTGFS_GAHBCFG);
+ stm32_putreg(OTGFS_GAHBCFG_GINTMSK | OTGFS_GAHBCFG_TXFELVL,
+ STM32_OTGFS_GAHBCFG);
}
/*******************************************************************************
@@ -5314,6 +5318,7 @@ void up_usbuninitialize(void)
stm32_putreg(0, STM32_OTGFS_DIEPMSK);
stm32_putreg(0, STM32_OTGFS_DOEPMSK);
+ stm32_putreg(0, STM32_OTGFS_DIEPEMPMSK);
stm32_putreg(0, STM32_OTGFS_DAINTMSK);
stm32_putreg(0xffffffff, STM32_OTGFS_DAINT);
diff --git a/nuttx/arch/arm/src/stm32/stm32_serial.c b/nuttx/arch/arm/src/stm32/stm32_serial.c
index 6aaecb2d9..c91f6a6d7 100644
--- a/nuttx/arch/arm/src/stm32/stm32_serial.c
+++ b/nuttx/arch/arm/src/stm32/stm32_serial.c
@@ -2077,7 +2077,8 @@ void up_serialinit(void)
{
#ifdef HAVE_UART
char devname[16];
- unsigned i, j;
+ unsigned i;
+ unsigned minor = 0;
#ifdef CONFIG_PM
int ret;
#endif
@@ -2094,6 +2095,7 @@ void up_serialinit(void)
#if CONSOLE_UART > 0
(void)uart_register("/dev/console", &uart_devs[CONSOLE_UART - 1]->dev);
(void)uart_register("/dev/ttyS0", &uart_devs[CONSOLE_UART - 1]->dev);
+ minor = 1;
/* If we need to re-initialise the console to enable DMA do that here. */
@@ -2107,19 +2109,19 @@ void up_serialinit(void)
strcpy(devname, "/dev/ttySx");
- for (i = 0, j = 1; i < STM32_NUSART; i++)
+ for (i = 0; i < STM32_NUSART; i++)
{
- /* don't create a device for the console - we did that above */
+ /* Don't create a device for the console - we did that above */
if ((uart_devs[i] == 0) || (uart_devs[i]->dev.isconsole))
{
continue;
}
- /* register USARTs as devices in increasing order */
+ /* Register USARTs as devices in increasing order */
- devname[9] = '0' + j++;
+ devname[9] = '0' + minor++;
(void)uart_register(devname, &uart_devs[i]->dev);
}
#endif /* HAVE UART */
diff --git a/nuttx/arch/arm/src/stm32/stm32_spi.c b/nuttx/arch/arm/src/stm32/stm32_spi.c
index 8de698cd5..b4a4f36ab 100644
--- a/nuttx/arch/arm/src/stm32/stm32_spi.c
+++ b/nuttx/arch/arm/src/stm32/stm32_spi.c
@@ -130,14 +130,28 @@
/* DMA channel configuration */
-#define SPI_RXDMA16_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_16BITS|DMA_CCR_PSIZE_16BITS|DMA_CCR_MINC )
-#define SPI_RXDMA8_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_8BITS |DMA_CCR_MINC )
-#define SPI_RXDMA16NULL_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_16BITS )
-#define SPI_RXDMA8NULL_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_8BITS )
-#define SPI_TXDMA16_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_16BITS|DMA_CCR_PSIZE_16BITS|DMA_CCR_MINC|DMA_CCR_DIR)
-#define SPI_TXDMA8_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_8BITS |DMA_CCR_MINC|DMA_CCR_DIR)
-#define SPI_TXDMA16NULL_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_16BITS |DMA_CCR_DIR)
-#define SPI_TXDMA8NULL_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_8BITS |DMA_CCR_DIR)
+#if defined(CONFIG_STM32_STM32F10XX)
+# define SPI_RXDMA16_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_16BITS|DMA_CCR_PSIZE_16BITS|DMA_CCR_MINC )
+# define SPI_RXDMA8_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_8BITS |DMA_CCR_MINC )
+# define SPI_RXDMA16NULL_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_16BITS )
+# define SPI_RXDMA8NULL_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_8BITS )
+# define SPI_TXDMA16_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_16BITS|DMA_CCR_PSIZE_16BITS|DMA_CCR_MINC|DMA_CCR_DIR)
+# define SPI_TXDMA8_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_8BITS |DMA_CCR_MINC|DMA_CCR_DIR)
+# define SPI_TXDMA16NULL_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_16BITS |DMA_CCR_DIR)
+# define SPI_TXDMA8NULL_CONFIG (SPI_DMA_PRIO|DMA_CCR_MSIZE_8BITS |DMA_CCR_PSIZE_8BITS |DMA_CCR_DIR)
+#elif defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
+# define SPI_RXDMA16_CONFIG (SPI_DMA_PRIO|DMA_SCR_MSIZE_16BITS|DMA_SCR_PSIZE_16BITS|DMA_SCR_MINC|DMA_SCR_DIR_P2M)
+# define SPI_RXDMA8_CONFIG (SPI_DMA_PRIO|DMA_SCR_MSIZE_8BITS |DMA_SCR_PSIZE_8BITS |DMA_SCR_MINC|DMA_SCR_DIR_P2M)
+# define SPI_RXDMA16NULL_CONFIG (SPI_DMA_PRIO|DMA_SCR_MSIZE_8BITS |DMA_SCR_PSIZE_16BITS |DMA_SCR_DIR_P2M)
+# define SPI_RXDMA8NULL_CONFIG (SPI_DMA_PRIO|DMA_SCR_MSIZE_8BITS |DMA_SCR_PSIZE_8BITS |DMA_SCR_DIR_P2M)
+# define SPI_TXDMA16_CONFIG (SPI_DMA_PRIO|DMA_SCR_MSIZE_16BITS|DMA_SCR_PSIZE_16BITS|DMA_SCR_MINC|DMA_SCR_DIR_M2P)
+# define SPI_TXDMA8_CONFIG (SPI_DMA_PRIO|DMA_SCR_MSIZE_8BITS |DMA_SCR_PSIZE_8BITS |DMA_SCR_MINC|DMA_SCR_DIR_M2P)
+# define SPI_TXDMA16NULL_CONFIG (SPI_DMA_PRIO|DMA_SCR_MSIZE_8BITS |DMA_SCR_PSIZE_16BITS |DMA_SCR_DIR_M2P)
+# define SPI_TXDMA8NULL_CONFIG (SPI_DMA_PRIO|DMA_SCR_MSIZE_8BITS |DMA_SCR_PSIZE_8BITS |DMA_SCR_DIR_M2P)
+#else
+# error "Unknown STM32 DMA"
+#endif
+
/* Debug ****************************************************************************/
/* Check if (non-standard) SPI debug is enabled */
@@ -550,6 +564,21 @@ static inline void spi_dmarxwakeup(FAR struct stm32_spidev_s *priv)
#endif
/************************************************************************************
+ * Name: spi_dmatxwakeup
+ *
+ * Description:
+ * Signal that DMA is complete
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_STM32_SPI_DMA
+static inline void spi_dmatxwakeup(FAR struct stm32_spidev_s *priv)
+{
+ (void)sem_post(&priv->txsem);
+}
+#endif
+
+/************************************************************************************
* Name: spi_dmarxcallback
*
* Description:
@@ -1183,8 +1212,8 @@ static void spi_exchange(FAR struct spi_dev_s *dev, FAR const void *txbuffer,
FAR void *rxbuffer, size_t nwords)
{
FAR struct stm32_spidev_s *priv = (FAR struct stm32_spidev_s *)dev;
- uint16_t rxdummy = 0xffff;
- uint16_t txdummy;
+ static uint16_t rxdummy = 0xffff;
+ static const uint16_t txdummy = 0xffff;
spivdbg("txbuffer=%p rxbuffer=%p nwords=%d\n", txbuffer, rxbuffer, nwords);
DEBUGASSERT(priv && priv->spibase);
@@ -1330,6 +1359,8 @@ static void spi_portinitialize(FAR struct stm32_spidev_s *priv)
priv->rxdma = stm32_dmachannel(priv->rxch);
priv->txdma = stm32_dmachannel(priv->txch);
DEBUGASSERT(priv->rxdma && priv->txdma);
+
+ spi_putreg(priv, STM32_SPI_CR2_OFFSET, SPI_CR2_RXDMAEN | SPI_CR2_TXDMAEN);
#endif
/* Enable spi */
diff --git a/nuttx/arch/arm/src/stm32/stm32_usbdev.c b/nuttx/arch/arm/src/stm32/stm32_usbdev.c
index 602de3824..d13ac8f96 100644
--- a/nuttx/arch/arm/src/stm32/stm32_usbdev.c
+++ b/nuttx/arch/arm/src/stm32/stm32_usbdev.c
@@ -2346,6 +2346,13 @@ static void stm32_suspend(struct stm32_usbdev_s *priv)
{
uint16_t regval;
+ /* Notify the class driver of the suspend event */
+
+ if (priv->driver)
+ {
+ CLASS_SUSPEND(priv->driver, &priv->usbdev);
+ }
+
/* Disable ESOF polling, disable the SUSP interrupt, and enable the WKUP
* interrupt. Clear any pending WKUP interrupt.
*/
@@ -2411,6 +2418,13 @@ static void stm32_initresume(struct stm32_usbdev_s *priv)
/* Reset FSUSP bit and enable normal interrupt handling */
stm32_putreg(STM32_CNTR_SETUP, STM32_USB_CNTR);
+
+ /* Notify the class driver of the resume event */
+
+ if (priv->driver)
+ {
+ CLASS_RESUME(priv->driver, &priv->usbdev);
+ }
}
/****************************************************************************