Initial file dump from open source releaseHEADmaster

1 files changed, 50 insertions, 0 deletions

diff --git a/drivers/char/modem_interface/modem_sdio_drv.c b/drivers/char/modem_interface/modem_sdio_drv.c
new file mode 100644
index 00000000..efe7288b
--- /dev/null
+++ b/drivers/char/modem_interface/modem_sdio_drv.c
@@ -0,0 +1,50 @@
+/*
+ *  kernel/driver/char/modem_interface/modem_sdio_drv.c
+ *
+ *  Generic modem interface sdio API
+ *
+ *  Author:     Jiayong Yang(Jiayong.Yang@spreadtrum.com)
+ *  Created:    Jul 27, 2012
+ *  Copyright:  Spreadtrum Inc.
+ *
+ *  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.
+ */
+
+
+#include <linux/mutex.h>
+#include <linux/dma-mapping.h>
+#include <linux/proc_fs.h>
+#include "modem_buffer.h"
+#include "modem_interface_driver.h"
+extern struct spi_device *sprd_spi_modem_device_register(int master_bus_num,struct spi_board_info *chip);
+
+extern int sprd_sdio_channel_open(void);
+extern void sprd_sdio_channel_close(void);
+extern int sprd_sdio_channel_rx(char *buf, int len, unsigned int addr);
+extern int sprd_sdio_channel_tx(const char *buf, unsigned int len, unsigned int addr);
+
+static int modem_sdio_open(void *para)
+{
+	return sprd_sdio_channel_open();
+}
+int modem_sdio_read(char *buffer,int size)
+{
+    return sprd_sdio_channel_rx(buffer,size, 0);
+}
+int modem_sdio_write(char *buffer,int size)
+{
+    return sprd_sdio_channel_tx((const char *)buffer,size, 0);
+}
+
+static struct modem_device_operation	sdio_device_op = {
+	.dev = MODEM_DEV_SDIO,
+	.open = modem_sdio_open,
+	.read = modem_sdio_read,
+	.write =modem_sdio_write
+};
+struct modem_device_operation * modem_sdio_drv_init(void)
+{
+	return &sdio_device_op;
+}