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authorjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2008-04-15 07:33:43 +0000
committerjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2008-04-15 07:33:43 +0000
commit3e6a0c14b44e8e6df086cb1cd87e5d9d87d57794 (patch)
treed9dd1eb2b38c304fc3ab8fbd803fbf21e033e729 /target/linux/generic-2.6/files/include
parenta58eaf210a223672f67c03d2070fa2fefdb2595b (diff)
[package] move spi_gpio driver into the kernel, clean-up SPI modules
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10844 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic-2.6/files/include')
-rw-r--r--target/linux/generic-2.6/files/include/linux/spi/spi_gpio.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/files/include/linux/spi/spi_gpio.h b/target/linux/generic-2.6/files/include/linux/spi/spi_gpio.h
new file mode 100644
index 0000000000..8e7d4b189d
--- /dev/null
+++ b/target/linux/generic-2.6/files/include/linux/spi/spi_gpio.h
@@ -0,0 +1,53 @@
+/*
+ * spi_gpio interface to platform code
+ *
+ * Copyright (c) 2008 Piotr Skamruk
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _LINUX_SPI_SPI_GPIO
+#define _LINUX_SPI_SPI_GPIO
+
+#include <linux/types.h>
+#include <linux/spi/spi.h>
+
+
+/** struct spi_gpio_platform_data - Data definitions for a SPI-GPIO device.
+ * This structure holds information about a GPIO-based SPI device.
+ *
+ * @pin_clk: The GPIO pin number of the CLOCK pin.
+ *
+ * @pin_miso: The GPIO pin number of the MISO pin.
+ *
+ * @pin_mosi: The GPIO pin number of the MOSI pin.
+ *
+ * @pin_cs: The GPIO pin number of the CHIPSELECT pin.
+ *
+ * @cs_activelow: If true, the chip is selected when the CS line is low.
+ *
+ * @no_spi_delay: If true, no delay is done in the lowlevel bitbanging.
+ * Note that doing no delay is not standards compliant,
+ * but it might be needed to speed up transfers on some
+ * slow embedded machines.
+ *
+ * @boardinfo_setup: This callback is called after the
+ * SPI master device was registered, but before the
+ * device is registered.
+ * @boardinfo_setup_data: Data argument passed to boardinfo_setup().
+ */
+struct spi_gpio_platform_data {
+ unsigned int pin_clk;
+ unsigned int pin_miso;
+ unsigned int pin_mosi;
+ unsigned int pin_cs;
+ bool cs_activelow;
+ bool no_spi_delay;
+ int (*boardinfo_setup)(struct spi_board_info *bi,
+ struct spi_master *master,
+ void *data);
+ void *boardinfo_setup_data;
+};
+
+#endif /* _LINUX_SPI_SPI_GPIO */