diff options
Diffstat (limited to 'drivers/net/wimax/i2400m/i2400m-sdio.h')
| -rw-r--r-- | drivers/net/wimax/i2400m/i2400m-sdio.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/drivers/net/wimax/i2400m/i2400m-sdio.h b/drivers/net/wimax/i2400m/i2400m-sdio.h new file mode 100644 index 00000000..1d63ffde --- /dev/null +++ b/drivers/net/wimax/i2400m/i2400m-sdio.h @@ -0,0 +1,157 @@ +/* + * 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 { + I2400M_SDIO_BOOT_RETRIES = 3, + 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 = 100, + /* How long to wait for the device to settle after reset */ + I2400MS_SETTLE_TIME = 40, + /* The number of msec to wait for IOR after sending IOE */ + IWMC3200_IOR_TIMEOUT = 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. The read/write operation to the queue + * is protected with spinlock (tx_lock in struct i2400m) to avoid + * the queue being destroyed in the middle of a the queue read/write + * operation. + * + * @debugfs_dentry: dentry for the SDIO specific debugfs files + * + * Note this value is set to NULL upon destruction; this is + * because some routinges use it to determine if we are inside the + * probe() path or some other path. When debugfs is disabled, + * creation sets the dentry to '(void*) -ENODEV', which is valid + * for the test. + */ +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; + + wait_queue_head_t bm_wfa_wq; + int bm_wait_result; + size_t bm_ack_size; + + /* Device is any of the iwmc3200 SKUs */ + unsigned iwmc3200:1; +}; + + +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 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); +extern void i2400ms_bus_bm_release(struct i2400m *); +extern int i2400ms_bus_bm_setup(struct i2400m *); + +#endif /* #ifndef __I2400M_SDIO_H__ */ |