From dce45c502e691cc8ec98bc7c88a4922aedfcb76d Mon Sep 17 00:00:00 2001
From: Giovanni Di Sirio <gdisirio@gmail.com>
Date: Sun, 28 May 2017 13:24:17 +0000
Subject: Fixed bug #825.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10212 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 os/hal/ports/STM32/LLD/SPIv1/hal_spi_lld.c | 8 ++++++++
 os/hal/ports/STM32/LLD/SPIv2/hal_spi_lld.c | 8 ++++++++
 2 files changed, 16 insertions(+)

(limited to 'os/hal')

diff --git a/os/hal/ports/STM32/LLD/SPIv1/hal_spi_lld.c b/os/hal/ports/STM32/LLD/SPIv1/hal_spi_lld.c
index 8baf59717..4be8cedc1 100644
--- a/os/hal/ports/STM32/LLD/SPIv1/hal_spi_lld.c
+++ b/os/hal/ports/STM32/LLD/SPIv1/hal_spi_lld.c
@@ -513,6 +513,8 @@ void spi_lld_unselect(SPIDriver *spip) {
  */
 void spi_lld_ignore(SPIDriver *spip, size_t n) {
 
+  osalDbgAssert(n < 65536, "unsupported DMA transfer size");
+
   dmaStreamSetMemory0(spip->dmarx, &dummyrx);
   dmaStreamSetTransactionSize(spip->dmarx, n);
   dmaStreamSetMode(spip->dmarx, spip->rxdmamode);
@@ -543,6 +545,8 @@ void spi_lld_ignore(SPIDriver *spip, size_t n) {
 void spi_lld_exchange(SPIDriver *spip, size_t n,
                       const void *txbuf, void *rxbuf) {
 
+  osalDbgAssert(n < 65536, "unsupported DMA transfer size");
+
   dmaStreamSetMemory0(spip->dmarx, rxbuf);
   dmaStreamSetTransactionSize(spip->dmarx, n);
   dmaStreamSetMode(spip->dmarx, spip->rxdmamode| STM32_DMA_CR_MINC);
@@ -570,6 +574,8 @@ void spi_lld_exchange(SPIDriver *spip, size_t n,
  */
 void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
 
+  osalDbgAssert(n < 65536, "unsupported DMA transfer size");
+
   dmaStreamSetMemory0(spip->dmarx, &dummyrx);
   dmaStreamSetTransactionSize(spip->dmarx, n);
   dmaStreamSetMode(spip->dmarx, spip->rxdmamode);
@@ -597,6 +603,8 @@ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
  */
 void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) {
 
+  osalDbgAssert(n < 65536, "unsupported DMA transfer size");
+
   dmaStreamSetMemory0(spip->dmarx, rxbuf);
   dmaStreamSetTransactionSize(spip->dmarx, n);
   dmaStreamSetMode(spip->dmarx, spip->rxdmamode | STM32_DMA_CR_MINC);
diff --git a/os/hal/ports/STM32/LLD/SPIv2/hal_spi_lld.c b/os/hal/ports/STM32/LLD/SPIv2/hal_spi_lld.c
index 4512dabe8..914249fe7 100644
--- a/os/hal/ports/STM32/LLD/SPIv2/hal_spi_lld.c
+++ b/os/hal/ports/STM32/LLD/SPIv2/hal_spi_lld.c
@@ -515,6 +515,8 @@ void spi_lld_unselect(SPIDriver *spip) {
  */
 void spi_lld_ignore(SPIDriver *spip, size_t n) {
 
+  osalDbgAssert(n < 65536, "unsupported DMA transfer size");
+
   dmaStreamSetMemory0(spip->dmarx, &dummyrx);
   dmaStreamSetTransactionSize(spip->dmarx, n);
   dmaStreamSetMode(spip->dmarx, spip->rxdmamode);
@@ -545,6 +547,8 @@ void spi_lld_ignore(SPIDriver *spip, size_t n) {
 void spi_lld_exchange(SPIDriver *spip, size_t n,
                       const void *txbuf, void *rxbuf) {
 
+  osalDbgAssert(n < 65536, "unsupported DMA transfer size");
+
   dmaStreamSetMemory0(spip->dmarx, rxbuf);
   dmaStreamSetTransactionSize(spip->dmarx, n);
   dmaStreamSetMode(spip->dmarx, spip->rxdmamode | STM32_DMA_CR_MINC);
@@ -572,6 +576,8 @@ void spi_lld_exchange(SPIDriver *spip, size_t n,
  */
 void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
 
+  osalDbgAssert(n < 65536, "unsupported DMA transfer size");
+
   dmaStreamSetMemory0(spip->dmarx, &dummyrx);
   dmaStreamSetTransactionSize(spip->dmarx, n);
   dmaStreamSetMode(spip->dmarx, spip->rxdmamode);
@@ -599,6 +605,8 @@ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
  */
 void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) {
 
+  osalDbgAssert(n < 65536, "unsupported DMA transfer size");
+
   dmaStreamSetMemory0(spip->dmarx, rxbuf);
   dmaStreamSetTransactionSize(spip->dmarx, n);
   dmaStreamSetMode(spip->dmarx, spip->rxdmamode | STM32_DMA_CR_MINC);
-- 
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