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Posted to commits@nuttx.apache.org by je...@apache.org on 2020/05/13 11:11:20 UTC
[incubator-nuttx] 02/03: boards: cxd56xx: Add SPI DMA support to
cxd56_gs2200m.c
This is an automated email from the ASF dual-hosted git repository.
jerpelea pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
commit 65b3accc5170336e8a5df6ce47f3236f84445723
Author: Masayuki Ishikawa <ma...@gmail.com>
AuthorDate: Tue May 5 11:23:04 2020 +0900
boards: cxd56xx: Add SPI DMA support to cxd56_gs2200m.c
Signed-off-by: Masayuki Ishikawa <Ma...@jp.sony.com>
---
boards/arm/cxd56xx/common/src/cxd56_gs2200m.c | 30 ++++++++++++++++++++++++++-
1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/boards/arm/cxd56xx/common/src/cxd56_gs2200m.c b/boards/arm/cxd56xx/common/src/cxd56_gs2200m.c
index 211a411..846f8a0 100644
--- a/boards/arm/cxd56xx/common/src/cxd56_gs2200m.c
+++ b/boards/arm/cxd56xx/common/src/cxd56_gs2200m.c
@@ -51,9 +51,17 @@
#include "cxd56_pinconfig.h"
#include "cxd56_spi.h"
+#include "cxd56_dmac.h"
#include "cxd56_gpio.h"
#include "cxd56_gpioint.h"
+#define DMA_TXCH (CONFIG_CXD56_DMAC_SPI5_TX_CH)
+#define DMA_RXCH (CONFIG_CXD56_DMAC_SPI5_RX_CH)
+#define DMA_TXCH_CFG (CXD56_DMA_PERIPHERAL_SPI5_TX)
+#define DMA_RXCH_CFG (CXD56_DMA_PERIPHERAL_SPI5_RX)
+#define SPI_TX_MAXSIZE (CONFIG_CXD56_DMAC_SPI5_TX_MAXSIZE)
+#define SPI_RX_MAXSIZE (CONFIG_CXD56_DMAC_SPI5_RX_MAXSIZE)
+
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
@@ -224,6 +232,8 @@ static void spi_pincontrol(int bus, bool on)
int board_gs2200m_initialize(FAR const char *devpath, int bus)
{
FAR struct spi_dev_s *spi;
+ DMA_HANDLE hdl;
+ dma_config_t conf;
wlinfo("Initializing GS2200M..\n");
@@ -245,9 +255,27 @@ int board_gs2200m_initialize(FAR const char *devpath, int bus)
return -ENODEV;
}
+ hdl = cxd56_dmachannel(DMA_TXCH, SPI_TX_MAXSIZE);
+ if (hdl)
+ {
+ conf.channel_cfg = DMA_TXCH_CFG;
+ conf.dest_width = CXD56_DMAC_WIDTH8;
+ conf.src_width = CXD56_DMAC_WIDTH8;
+ cxd56_spi_dmaconfig(bus, CXD56_SPI_DMAC_CHTYPE_TX, hdl, &conf);
+ }
+
+ hdl = cxd56_dmachannel(DMA_RXCH, SPI_RX_MAXSIZE);
+ if (hdl)
+ {
+ conf.channel_cfg = DMA_RXCH_CFG;
+ conf.dest_width = CXD56_DMAC_WIDTH8;
+ conf.src_width = CXD56_DMAC_WIDTH8;
+ cxd56_spi_dmaconfig(bus, CXD56_SPI_DMAC_CHTYPE_RX, hdl, &conf);
+ }
+
/* Enable SPI5 */
- spi_pincontrol(5, true);
+ spi_pincontrol(bus, true);
g_devhandle = gs2200m_register(devpath, spi, &g_wifi_lower);