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authorJoel Sherrill <joel.sherrill@OARcorp.com>2008-08-15 20:18:41 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2008-08-15 20:18:41 +0000
commit30abd24b7e7bc1f66b22527792931cf4468b06b8 (patch)
treefba359b7e4b04fdd1f008f54fcca7b69d810bab6 /c/src/lib/libcpu/bfin/serial/spi.c
parent2008-08-15 Joel Sherrill <joel.sherrill@OARcorp.com> (diff)
downloadrtems-30abd24b7e7bc1f66b22527792931cf4468b06b8.tar.bz2
2008-08-15 Allan Hessenflow <allanh@kallisti.com>
* ChangeLog, Makefile.am, README, configure.ac, preinstall.am, cache/cache.c, cache/cache_.h, clock/clock.c, clock/rtc.c, clock/tod.h, include/bf533.h, include/bf537.h, include/cecRegs.h, include/coreTimerRegs.h, include/dmaRegs.h, include/ebiuRegs.h, include/ethernetRegs.h, include/gpioRegs.h, include/memoryRegs.h, include/mmuRegs.h, include/ppiRegs.h, include/rtcRegs.h, include/sicRegs.h, include/spiRegs.h, include/sportRegs.h, include/timerRegs.h, include/twiRegs.h, include/uartRegs.h, include/wdogRegs.h, interrupt/interrupt.c, interrupt/interrupt.h, mmu/mmu.c, mmu/mmu.h, network/ethernet.c, network/ethernet.h, serial/spi.c, serial/spi.h, serial/sport.c, serial/sport.h, serial/twi.c, serial/twi.h, serial/uart.c, serial/uart.h, timer/timer.c: New files.
Diffstat (limited to '')
-rw-r--r--c/src/lib/libcpu/bfin/serial/spi.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/bfin/serial/spi.c b/c/src/lib/libcpu/bfin/serial/spi.c
new file mode 100644
index 0000000000..42c2a5250f
--- /dev/null
+++ b/c/src/lib/libcpu/bfin/serial/spi.c
@@ -0,0 +1,109 @@
+/* placeholder (just a shell) */
+
+/* SPI driver for Blackfin
+ *
+ * Copyright (c) 2008 Kallisti Labs, Los Gatos, CA, USA
+ * written by Allan Hessenflow <allanh@kallisti.com>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+
+#include <stdlib.h>
+#include <rtems.h>
+#include <rtems/libi2c.h>
+
+#include <libcpu/spiRegs.h>
+#include "spi.h"
+
+
+static rtems_status_code spiInit(rtems_libi2c_bus_t *bus) {
+ bfin_spi_softc_t *softc;
+ rtems_status_code status;
+
+ softc = &(((bfin_spi_desc_t *)(bus))->softc);
+
+ status = rtems_semaphore_create(rtems_build_name('s','p','i','s'),
+ 0,
+ RTEMS_FIFO | RTEMS_SIMPLE_BINARY_SEMAPHORE,
+ 0,
+ &softc->irq_sema_id);
+
+ return status;
+}
+
+static rtems_status_code spiSendStart(rtems_libi2c_bus_t *bus) {
+ bfin_spi_softc_t *softc;
+ rtems_status_code status;
+
+ status = RTEMS_SUCCESSFUL;
+ softc = &(((bfin_spi_desc_t *)(bus))->softc);
+
+ return status;
+}
+
+static rtems_status_code spiSendStop(rtems_libi2c_bus_t *bus) {
+ bfin_spi_softc_t *softc;
+ rtems_status_code status;
+
+ status = RTEMS_SUCCESSFUL;
+ softc = &(((bfin_spi_desc_t *)(bus))->softc);
+
+ return status;
+}
+
+static rtems_status_code spiSendAddr(rtems_libi2c_bus_t *bus,
+ uint32_t addr, int rw) {
+ bfin_spi_softc_t *softc;
+ rtems_status_code status;
+
+ status = RTEMS_SUCCESSFUL;
+ softc = &(((bfin_spi_desc_t *)(bus))->softc);
+
+ return status;
+}
+
+static int spiReadBytes(rtems_libi2c_bus_t *bus,
+ unsigned char *buf, int len) {
+ bfin_spi_softc_t *softc;
+
+ softc = &(((bfin_spi_desc_t *)(bus))->softc);
+
+ return 0;
+}
+
+static int spiWriteBytes(rtems_libi2c_bus_t *bus,
+ unsigned char *buf, int len) {
+ bfin_spi_softc_t *softc;
+
+ softc = &(((bfin_spi_desc_t *)(bus))->softc);
+
+ return 0;
+}
+
+static int spiIoctl(rtems_libi2c_bus_t *bus, int cmd, void *arg) {
+ bfin_spi_softc_t *softc;
+
+ softc = &(((bfin_spi_desc_t *)(bus))->softc);
+
+
+ return 0;
+}
+
+void bfin_spi_isr(int source) {
+}
+
+rtems_libi2c_bus_ops_t bfin_spi_libi2c_bus_ops = {
+ init: spiInit,
+ send_start: spiSendStart,
+ send_stop: spiSendStop,
+ send_addr: spiSendAddr,
+ read_bytes: spiReadBytes,
+ write_bytes: spiWriteBytes,
+ ioctl: spiIoctl
+};
+