serial: max3107: Abstract out the platform specific bits

[pandora-kernel.git] / drivers / serial / max3107.h

diff --git a/drivers/serial/max3107.h b/drivers/serial/max3107.h
index a5625d1..72b3041 100644 (file)
--- a/drivers/serial/max3107.h
+++ b/drivers/serial/max3107.h
@@ -10,8 +10,8 @@
  * (at your option) any later version.
  */
 
-#ifndef _LINUX_SERIAL_MAX3107_H
-#define _LINUX_SERIAL_MAX3107_H
+#ifndef _MAX3107_H
+#define _MAX3107_H
 
 /* Serial error status definitions */
 #define MAX3107_PARITY_ERROR   1
@@ -355,4 +355,85 @@
 #define MAX3107_BRG13_IB460800 (0x000000 | 0x00)
 #define MAX3107_BRG13_IB921600 (0x000000 | 0x00)
 
+
+struct baud_table {
+       int baud;
+       u32 new_brg;
+};
+
+struct max3107_port {
+       /* UART port structure */
+       struct uart_port port;
+
+       /* SPI device structure */
+       struct spi_device *spi;
+
+       /* GPIO chip stucture */
+       struct gpio_chip chip;
+
+       /* Workqueue that does all the magic */
+       struct workqueue_struct *workqueue;
+       struct work_struct work;
+
+       /* Lock for shared data */
+       spinlock_t data_lock;
+
+       /* Device configuration */
+       int ext_clk;            /* 1 if external clock used */
+       int loopback;           /* Current loopback mode state */
+       int baud;                       /* Current baud rate */
+
+       /* State flags */
+       int suspended;          /* Indicates suspend mode */
+       int tx_fifo_empty;      /* Flag for TX FIFO state */
+       int rx_enabled;         /* Flag for receiver state */
+       int tx_enabled;         /* Flag for transmitter state */
+
+       u16 irqen_reg;          /* Current IRQ enable register value */
+       /* Shared data */
+       u16 mode1_reg;          /* Current mode1 register value*/
+       int mode1_commit;       /* Flag for setting new mode1 register value */
+       u16 lcr_reg;            /* Current LCR register value */
+       int lcr_commit;         /* Flag for setting new LCR register value */
+       u32 brg_cfg;            /* Current Baud rate generator config  */
+       int brg_commit;         /* Flag for setting new baud rate generator
+                                * config
+                                */
+       struct baud_table *baud_tbl;
+       int handle_irq;         /* Indicates that IRQ should be handled */
+
+       /* Rx buffer and str*/
+       u16 *rxbuf;
+       u8  *rxstr;
+       /* Tx buffer*/
+       u16 *txbuf;
+
+       struct max3107_plat *pdata;     /* Platform data */
+};
+
+/* Platform data structure */
+struct max3107_plat {
+       /* Loopback mode enable */
+       int loopback;
+       /* External clock enable */
+       int ext_clk;
+       /* Called during the register initialisation */
+       void (*init)(struct max3107_port *s);
+       /* Called when the port is found and configured */
+       int (*configure)(struct max3107_port *s);
+       /* HW suspend function */
+       void (*hw_suspend) (struct max3107_port *s, int suspend);
+       /* Polling mode enable */
+       int polled_mode;
+       /* Polling period if polling mode enabled */
+       int poll_time;
+};
+
+extern int max3107_rw(struct max3107_port *s, u8 *tx, u8 *rx, int len);
+extern void max3107_hw_susp(struct max3107_port *s, int suspend);
+extern int max3107_probe(struct spi_device *spi, struct max3107_plat *pdata);
+extern int max3107_remove(struct spi_device *spi);
+extern int max3107_suspend(struct spi_device *spi, pm_message_t state);
+extern int max3107_resume(struct spi_device *spi);
+
 #endif /* _LINUX_SERIAL_MAX3107_H */