Author: imp
Date: Wed Aug 1 01:18:36 2012
New Revision: 238965
URL: http://svn.freebsd.org/changeset/base/238965
Log:
Add the chip select glue.
Modified:
head/sys/dev/spibus/spi.h
head/sys/dev/spibus/spibus.c
Modified: head/sys/dev/spibus/spi.h
==============================================================================
--- head/sys/dev/spibus/spi.h Wed Aug 1 00:36:12 2012 (r238964)
+++ head/sys/dev/spibus/spi.h Wed Aug 1 01:18:36 2012 (r238965)
@@ -1,6 +1,7 @@
/* $FreeBSD$ */
struct spi_command {
+ int cs;
void *tx_cmd;
uint32_t tx_cmd_sz;
void *rx_cmd;
@@ -10,3 +11,5 @@ struct spi_command {
void *rx_data;
uint32_t rx_data_sz;
};
+
+#define SPI_CHIP_SELECT_HIGH 0x1 /* Chip select high
(else low) */
Modified: head/sys/dev/spibus/spibus.c
==============================================================================
--- head/sys/dev/spibus/spibus.c Wed Aug 1 00:36:12 2012
(r238964)
+++ head/sys/dev/spibus/spibus.c Wed Aug 1 01:18:36 2012
(r238965)
@@ -158,6 +158,9 @@ spibus_hinted_child(device_t bus, const
static int
spibus_transfer_impl(device_t dev, device_t child, struct spi_command *cmd)
{
+ /* Maybe set flags too? spi mode? */
+ spibus_get_cs(dev, &cmd->cs);
+
return (SPIBUS_TRANSFER(device_get_parent(dev), child, cmd));
}
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