Patchwork [23/29] i2400m/SDIO: header for the SDIO subdriver

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Submitter Inaky Perez-Gonzalez
Date Dec. 21, 2008, 12:57 a.m.
Message ID <fae096cf88a6ee56d70dee3c846628e00d97c860.1229820957.git.inaky@linux.intel.com>
Download mbox | patch
Permalink /patch/15119/
State Not Applicable
Delegated to: David Miller
Headers show

Comments

Inaky Perez-Gonzalez - Dec. 21, 2008, 12:57 a.m.
This contains the common function declaration and constants for the
SDIO driver for the 2400m Wireless WiMAX Connection and it's debug
level settings.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
---
 drivers/net/wimax/i2400m/i2400m-sdio.h       |  132 ++++++++++++++++++++++++++
 drivers/net/wimax/i2400m/sdio-debug-levels.h |   22 +++++
 2 files changed, 154 insertions(+), 0 deletions(-)
 create mode 100644 drivers/net/wimax/i2400m/i2400m-sdio.h
 create mode 100644 drivers/net/wimax/i2400m/sdio-debug-levels.h

Patch

diff --git a/drivers/net/wimax/i2400m/i2400m-sdio.h b/drivers/net/wimax/i2400m/i2400m-sdio.h
new file mode 100644
index 0000000..08c2fb7
--- /dev/null
+++ b/drivers/net/wimax/i2400m/i2400m-sdio.h
@@ -0,0 +1,132 @@ 
+/*
+ * Intel Wireless WiMAX Connection 2400m
+ * SDIO-specific i2400m driver definitions
+ *
+ *
+ * Copyright (C) 2007-2008 Intel Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in
+ *     the documentation and/or other materials provided with the
+ *     distribution.
+ *   * Neither the name of Intel Corporation nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *
+ * Intel Corporation <linux-wimax@intel.com>
+ * Brian Bian <brian.bian@intel.com>
+ * Dirk Brandewie <dirk.j.brandewie@intel.com>
+ * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+ * Yanir Lubetkin <yanirx.lubetkin@intel.com>
+ *  - Initial implementation
+ *
+ *
+ * This driver implements the bus-specific part of the i2400m for
+ * SDIO. Check i2400m.h for a generic driver description.
+ *
+ * ARCHITECTURE
+ *
+ * This driver sits under the bus-generic i2400m driver, providing the
+ * connection to the device.
+ *
+ * When probed, all the function pointers are setup and then the
+ * bus-generic code called. The generic driver will then use the
+ * provided pointers for uploading firmware (i2400ms_bus_bm*() in
+ * sdio-fw.c) and then setting up the device (i2400ms_dev_*() in
+ * sdio.c).
+ *
+ * Once firmware is uploaded, TX functions (sdio-tx.c) are called when
+ * data is ready for transmission in the TX fifo; then the SDIO IRQ is
+ * fired and data is available (sdio-rx.c), it is sent to the generic
+ * driver for processing with i2400m_rx.
+ */
+
+#ifndef __I2400M_SDIO_H__
+#define __I2400M_SDIO_H__
+
+#include "i2400m.h"
+
+/* Host-Device interface for SDIO */
+enum {
+	I2400MS_BLK_SIZE = 256,
+	I2400MS_PL_SIZE_MAX = 0x3E00,
+
+	I2400MS_DATA_ADDR = 0x0,
+	I2400MS_INTR_STATUS_ADDR = 0x13,
+	I2400MS_INTR_CLEAR_ADDR = 0x13,
+	I2400MS_INTR_ENABLE_ADDR = 0x14,
+	I2400MS_INTR_GET_SIZE_ADDR = 0x2C,
+	/* The number of ticks to wait for the device to signal that
+	 * it is ready */
+	I2400MS_INIT_SLEEP_INTERVAL = 10,
+};
+
+
+/**
+ * struct i2400ms - descriptor for a SDIO connected i2400m
+ *
+ * @i2400m: bus-generic i2400m implementation; has to be first (see
+ *     it's documentation in i2400m.h).
+ *
+ * @func: pointer to our SDIO function
+ *
+ * @tx_worker: workqueue struct used to TX data when the bus-generic
+ *     code signals packets are pending for transmission to the device.
+ *
+ * @tx_workqueue: workqeueue used for data TX; we don't use the
+ *     system's workqueue as that might cause deadlocks with code in
+ *     the bus-generic driver.
+ */
+struct i2400ms {
+	struct i2400m i2400m;		/* FIRST! See doc */
+	struct sdio_func *func;
+
+	struct work_struct tx_worker;
+	struct workqueue_struct *tx_workqueue;
+	char tx_wq_name[32];
+
+	struct dentry *debugfs_dentry;
+};
+
+
+static inline
+void i2400ms_init(struct i2400ms *i2400ms)
+{
+	i2400m_init(&i2400ms->i2400m);
+}
+
+
+extern int i2400ms_rx_setup(struct i2400ms *);
+extern void i2400ms_rx_release(struct i2400ms *);
+extern ssize_t __i2400ms_rx_get_size(struct i2400ms *);
+
+extern int i2400ms_tx_setup(struct i2400ms *);
+extern void i2400ms_tx_release(struct i2400ms *);
+extern void i2400ms_bus_tx_kick(struct i2400m *);
+
+extern ssize_t i2400ms_bus_bm_cmd_send(struct i2400m *,
+				       const struct i2400m_bootrom_header *,
+				       size_t, int);
+extern ssize_t i2400ms_bus_bm_wait_for_ack(struct i2400m *,
+					   struct i2400m_bootrom_header *,
+					   size_t);
+#endif /* #ifndef __I2400M_SDIO_H__ */
diff --git a/drivers/net/wimax/i2400m/sdio-debug-levels.h b/drivers/net/wimax/i2400m/sdio-debug-levels.h
new file mode 100644
index 0000000..c519987
--- /dev/null
+++ b/drivers/net/wimax/i2400m/sdio-debug-levels.h
@@ -0,0 +1,22 @@ 
+/*
+ * debug levels control file for the i2400m module's
+ */
+#ifndef __debug_levels__h__
+#define __debug_levels__h__
+
+/* Maximum compile and run time debug level for all submodules */
+#define D_MODULENAME i2400m_sdio
+#define D_MASTER CONFIG_WIMAX_I2400M_DEBUG_LEVEL
+
+#include <linux/wimax/debug.h>
+
+/* List of all the enabled modules */
+enum d_module {
+	D_SUBMODULE_DECLARE(main),
+	D_SUBMODULE_DECLARE(tx),
+	D_SUBMODULE_DECLARE(rx),
+	D_SUBMODULE_DECLARE(fw)
+};
+
+
+#endif /* #ifndef __debug_levels__h__ */