Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / drivers / tty / serial / ifx6x60.h

diff --git a/drivers/tty/serial/ifx6x60.h b/drivers/tty/serial/ifx6x60.h
new file mode 100644 (file)
index 0000000..deb7b8d
--- /dev/null
+++ b/drivers/tty/serial/ifx6x60.h
@@ -0,0 +1,129 @@
+/****************************************************************************
+ *
+ * Driver for the IFX spi modem.
+ *
+ * Copyright (C) 2009, 2010 Intel Corp
+ * Jim Stanley <jim.stanley@intel.com>
+ *
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.         See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA
+ *
+ *
+ *
+ *****************************************************************************/
+#ifndef _IFX6X60_H
+#define _IFX6X60_H
+
+#define DRVNAME                                "ifx6x60"
+#define TTYNAME                                "ttyIFX"
+
+/* #define IFX_THROTTLE_CODE */
+
+#define IFX_SPI_MAX_MINORS             1
+#define IFX_SPI_TRANSFER_SIZE          2048
+#define IFX_SPI_FIFO_SIZE              4096
+
+#define IFX_SPI_HEADER_OVERHEAD                4
+#define IFX_RESET_TIMEOUT              msecs_to_jiffies(50)
+
+/* device flags bitfield definitions */
+#define IFX_SPI_STATE_PRESENT          0
+#define IFX_SPI_STATE_IO_IN_PROGRESS   1
+#define IFX_SPI_STATE_IO_READY         2
+#define IFX_SPI_STATE_TIMER_PENDING    3
+
+/* flow control bitfields */
+#define IFX_SPI_DCD                    0
+#define IFX_SPI_CTS                    1
+#define IFX_SPI_DSR                    2
+#define IFX_SPI_RI                     3
+#define IFX_SPI_DTR                    4
+#define IFX_SPI_RTS                    5
+#define IFX_SPI_TX_FC                  6
+#define IFX_SPI_RX_FC                  7
+#define IFX_SPI_UPDATE                 8
+
+#define IFX_SPI_PAYLOAD_SIZE           (IFX_SPI_TRANSFER_SIZE - \
+                                               IFX_SPI_HEADER_OVERHEAD)
+
+#define IFX_SPI_IRQ_TYPE               DETECT_EDGE_RISING
+#define IFX_SPI_GPIO_TARGET            0
+#define IFX_SPI_GPIO0                  0x105
+
+#define IFX_SPI_STATUS_TIMEOUT         (2000*HZ)
+
+/* values for bits in power status byte */
+#define IFX_SPI_POWER_DATA_PENDING     1
+#define IFX_SPI_POWER_SRDY             2
+
+struct ifx_spi_device {
+       /* Our SPI device */
+       struct spi_device *spi_dev;
+
+       /* Port specific data */
+       struct kfifo tx_fifo;
+       spinlock_t fifo_lock;
+       unsigned long signal_state;
+
+       /* TTY Layer logic */
+       struct tty_port tty_port;
+       struct device *tty_dev;
+       int minor;
+
+       /* Low level I/O work */
+       struct tasklet_struct io_work_tasklet;
+       unsigned long flags;
+       dma_addr_t rx_dma;
+       dma_addr_t tx_dma;
+
+       int is_6160;                            /* Modem type */
+
+       spinlock_t write_lock;
+       int write_pending;
+       spinlock_t power_lock;
+       unsigned char power_status;
+
+       unsigned char *rx_buffer;
+       unsigned char *tx_buffer;
+       dma_addr_t rx_bus;
+       dma_addr_t tx_bus;
+       unsigned char spi_more;
+       unsigned char spi_slave_cts;
+
+       struct timer_list spi_timer;
+
+       struct spi_message spi_msg;
+       struct spi_transfer spi_xfer;
+
+       struct {
+               /* gpio lines */
+               unsigned short srdy;            /* slave-ready gpio */
+               unsigned short mrdy;            /* master-ready gpio */
+               unsigned short reset;           /* modem-reset gpio */
+               unsigned short po;              /* modem-on gpio */
+               unsigned short reset_out;       /* modem-in-reset gpio */
+               /* state/stats */
+               int unack_srdy_int_nb;
+       } gpio;
+
+       /* modem reset */
+       unsigned long mdm_reset_state;
+#define MR_START       0
+#define MR_INPROGRESS  1
+#define MR_COMPLETE    2
+       wait_queue_head_t mdm_reset_wait;
+};
+
+#endif /* _IFX6X60_H */