--- /dev/null
+/*
+ * ifx_ssc.h defines some data sructures used in ifx_ssc.c
+ *
+ * Copyright (C) 2004 Michael Schoenenborn (IFX COM TI BT)
+ *
+ *
+ */
+
+#ifndef __IFX_SSC_H
+#define __IFX_SSC_H
+#ifdef __KERNEL__
+#include <asm/ifxmips/ifx_ssc_defines.h>
+#endif //__KERNEL__
+
+#define PORT_CNT 1 // assume default value
+
+/* symbolic constants to be used in SSC routines */
+
+// ### TO DO: bad performance
+#define IFX_SSC_TXFIFO_ITL 1
+#define IFX_SSC_RXFIFO_ITL 1
+
+struct ifx_ssc_statistics {
+ unsigned int abortErr; /* abort error */
+ unsigned int modeErr; /* master/slave mode error */
+ unsigned int txOvErr; /* TX Overflow error */
+ unsigned int txUnErr; /* TX Underrun error */
+ unsigned int rxOvErr; /* RX Overflow error */
+ unsigned int rxUnErr; /* RX Underrun error */
+ unsigned int rxBytes;
+ unsigned int txBytes;
+};
+
+struct ifx_ssc_hwopts {
+ unsigned int AbortErrDetect:1; /* Abort Error detection (in slave mode) */
+ unsigned int rxOvErrDetect:1; /* Receive Overflow Error detection */
+ unsigned int rxUndErrDetect:1; /* Receive Underflow Error detection */
+ unsigned int txOvErrDetect:1; /* Transmit Overflow Error detection */
+ unsigned int txUndErrDetect:1; /* Transmit Underflow Error detection */
+ unsigned int echoMode:1; /* Echo mode */
+ unsigned int loopBack:1; /* Loopback mode */
+ unsigned int idleValue:1; /* Idle value */
+ unsigned int clockPolarity:1; /* Idle clock is high or low */
+ unsigned int clockPhase:1; /* Tx on trailing or leading edge */
+ unsigned int headingControl:1; /* LSB first or MSB first */
+ unsigned int dataWidth:6; /* from 2 up to 32 bits */
+ unsigned int masterSelect:1; /* Master or Slave mode */
+ unsigned int modeRxTx:2; /* rx/tx mode */
+ unsigned int gpoCs:8; /* choose outputs to use for chip select */
+ unsigned int gpoInv:8; /* invert GPO outputs */
+};
+
+struct ifx_ssc_frm_opts {
+ bool FrameEnable; // SFCON.SFEN
+ unsigned int DataLength; // SFCON.DLEN
+ unsigned int PauseLength; // SFCON.PLEN
+ unsigned int IdleData; // SFCON.IDAT
+ unsigned int IdleClock; // SFCON.ICLK
+ bool StopAfterPause; // SFCON.STOP
+};
+
+struct ifx_ssc_frm_status {
+ bool DataBusy; // SFSTAT.DBSY
+ bool PauseBusy; // SFSTAT.PBSY
+ unsigned int DataCount; // SFSTAT.DCNT
+ unsigned int PauseCount; // SFSTAT.PCNT
+ bool EnIntAfterData; // SFCON.IBEN
+ bool EnIntAfterPause; // SFCON.IAEN
+};
+
+typedef struct {
+ char *buf;
+ size_t len;
+} ifx_ssc_buf_item_t;
+
+// data structures for batch execution
+typedef union {
+ struct {
+ bool save_options;
+ } init;
+ ifx_ssc_buf_item_t read;
+ ifx_ssc_buf_item_t write;
+ ifx_ssc_buf_item_t rd_wr;
+ unsigned int set_baudrate;
+ struct ifx_ssc_frm_opts set_frm;
+ unsigned int set_gpo;
+ struct ifx_ssc_hwopts set_hwopts;
+} ifx_ssc_batch_cmd_param;
+
+struct ifx_ssc_batch_list {
+ unsigned int cmd;
+ ifx_ssc_batch_cmd_param cmd_param;
+ struct ifx_ssc_batch_list *next;
+};
+
+#ifdef __KERNEL__
+#define IFX_SSC_IS_MASTER(p) ((p)->opts.masterSelect == SSC_MASTER_MODE)
+
+struct ifx_ssc_port {
+ unsigned long mapbase;
+ struct ifx_ssc_hwopts opts;
+ struct ifx_ssc_statistics stats;
+ struct ifx_ssc_frm_status frm_status;
+ struct ifx_ssc_frm_opts frm_opts;
+ /* wait queue for ifx_ssc_read() */
+ wait_queue_head_t rwait, pwait;
+ int port_nr;
+ char port_is_open; /* exclusive open - boolean */
+// int no_of_bits; /* number of _valid_ bits */
+// int elem_size; /* shift for element (no of bytes)*/
+ /* buffer and pointers to the read/write position */
+ char *rxbuf; /* buffer for RX */
+ char *rxbuf_end; /* buffer end pointer for RX */
+ volatile char *rxbuf_ptr; /* buffer write pointer for RX */
+ char *txbuf; /* buffer for TX */
+ char *txbuf_end; /* buffer end pointer for TX */
+ volatile char *txbuf_ptr; /* buffer read pointer for TX */
+ unsigned int baud;
+ /* each channel has its own interrupts */
+ /* (transmit/receive/error/frame) */
+ unsigned int txirq, rxirq, errirq, frmirq;
+};
+/* default values for SSC configuration */
+// values of CON
+#define IFX_SSC_DEF_IDLE_DATA 1 /* enable */
+#define IFX_SSC_DEF_BYTE_VALID_CTL 1 /* enable */
+#define IFX_SSC_DEF_DATA_WIDTH 32 /* bits */
+#define IFX_SSC_DEF_ABRT_ERR_DETECT 0 /* disable */
+#define IFX_SSC_DEF_RO_ERR_DETECT 1 /* enable */
+#define IFX_SSC_DEF_RU_ERR_DETECT 0 /* disable */
+#define IFX_SSC_DEF_TO_ERR_DETECT 0 /* disable */
+#define IFX_SSC_DEF_TU_ERR_DETECT 0 /* disable */
+#define IFX_SSC_DEF_LOOP_BACK 0 /* disable */
+#define IFX_SSC_DEF_ECHO_MODE 0 /* disable */
+#define IFX_SSC_DEF_CLOCK_POLARITY 0 /* low */
+#define IFX_SSC_DEF_CLOCK_PHASE 1 /* 0: shift on leading edge, latch on trailling edge, 1, otherwise */
+#define IFX_SSC_DEF_HEADING_CONTROL IFX_SSC_MSB_FIRST
+#define IFX_SSC_DEF_MODE_RXTX IFX_SSC_MODE_RXTX
+// other values
+#define IFX_SSC_DEF_MASTERSLAVE IFX_SSC_MASTER_MODE /* master */
+#ifdef CONFIG_USE_EMULATOR
+#define IFX_SSC_DEF_BAUDRATE 10000
+#else
+#define IFX_SSC_DEF_BAUDRATE 2000000
+#endif
+#define IFX_SSC_DEF_RMC 0x10
+
+#define IFX_SSC_DEF_TXFIFO_FL 8
+#define IFX_SSC_DEF_RXFIFO_FL 1
+
+#if 1 //TODO
+#define IFX_SSC_DEF_GPO_CS 0x3 /* no chip select */
+#define IFX_SSC_DEF_GPO_INV 0 /* no chip select */
+#else
+#error "what is ur Chip Select???"
+#endif
+#define IFX_SSC_DEF_SFCON 0 /* no serial framing */
+#if 0
+#define IFX_SSC_DEF_IRNEN IFX_SSC_T_BIT | /* enable all int's */\
+ IFX_SSC_R_BIT | IFX_SSC_E_BIT | IFX_SSC_F_BIT
+#endif
+#define IFX_SSC_DEF_IRNEN IFX_SSC_T_BIT | /* enable all int's */\
+ IFX_SSC_R_BIT | IFX_SSC_E_BIT
+#endif /* __KERNEL__ */
+
+// batch execution commands
+#define IFX_SSC_BATCH_CMD_INIT 1
+#define IFX_SSC_BATCH_CMD_READ 2
+#define IFX_SSC_BATCH_CMD_WRITE 3
+#define IFX_SSC_BATCH_CMD_RD_WR 4
+#define IFX_SSC_BATCH_CMD_SET_BAUDRATE 5
+#define IFX_SSC_BATCH_CMD_SET_HWOPTS 6
+#define IFX_SSC_BATCH_CMD_SET_FRM 7
+#define IFX_SSC_BATCH_CMD_SET_GPO 8
+#define IFX_SSC_BATCH_CMD_FIFO_FLUSH 9
+//#define IFX_SSC_BATCH_CMD_
+//#define IFX_SSC_BATCH_CMD_
+#define IFX_SSC_BATCH_CMD_END_EXEC 0
+
+/* Macros to configure SSC hardware */
+/* headingControl: */
+#define IFX_SSC_LSB_FIRST 0
+#define IFX_SSC_MSB_FIRST 1
+/* dataWidth: */
+#define IFX_SSC_MIN_DATA_WIDTH 2
+#define IFX_SSC_MAX_DATA_WIDTH 32
+/* master/slave mode select */
+#define IFX_SSC_MASTER_MODE 1
+#define IFX_SSC_SLAVE_MODE 0
+/* rx/tx mode */
+// ### TO DO: !!! ATTENTION! Hardware dependency => move to ifx_ssc_defines.h
+#define IFX_SSC_MODE_RXTX 0
+#define IFX_SSC_MODE_RX 1
+#define IFX_SSC_MODE_TX 2
+#define IFX_SSC_MODE_OFF 3
+#define IFX_SSC_MODE_MASK IFX_SSC_MODE_RX | IFX_SSC_MODE_TX
+
+/* GPO values */
+#define IFX_SSC_MAX_GPO_OUT 7
+
+#define IFX_SSC_RXREQ_BLOCK_SIZE 32768
+
+/***********************/
+/* defines for ioctl's */
+/***********************/
+#define IFX_SSC_IOCTL_MAGIC 'S'
+/* read out the statistics */
+#define IFX_SSC_STATS_READ _IOR(IFX_SSC_IOCTL_MAGIC, 1, struct ifx_ssc_statistics)
+/* clear the statistics */
+#define IFX_SSC_STATS_RESET _IO(IFX_SSC_IOCTL_MAGIC, 2)
+/* set the baudrate */
+#define IFX_SSC_BAUD_SET _IOW(IFX_SSC_IOCTL_MAGIC, 3, unsigned int)
+/* get the current baudrate */
+#define IFX_SSC_BAUD_GET _IOR(IFX_SSC_IOCTL_MAGIC, 4, unsigned int)
+/* set hardware options */
+#define IFX_SSC_HWOPTS_SET _IOW(IFX_SSC_IOCTL_MAGIC, 5, struct ifx_ssc_hwopts)
+/* get the current hardware options */
+#define IFX_SSC_HWOPTS_GET _IOR(IFX_SSC_IOCTL_MAGIC, 6, struct ifx_ssc_hwopts)
+/* set transmission mode */
+#define IFX_SSC_RXTX_MODE_SET _IOW(IFX_SSC_IOCTL_MAGIC, 7, unsigned int)
+/* get the current transmission mode */
+#define IFX_SSC_RXTX_MODE_GET _IOR(IFX_SSC_IOCTL_MAGIC, 8, unsigned int)
+/* abort transmission */
+#define IFX_SSC_ABORT _IO(IFX_SSC_IOCTL_MAGIC, 9)
+#define IFX_SSC_FIFO_FLUSH _IO(IFX_SSC_IOCTL_MAGIC, 9)
+
+/* set general purpose outputs */
+#define IFX_SSC_GPO_OUT_SET _IOW(IFX_SSC_IOCTL_MAGIC, 32, unsigned int)
+/* clear general purpose outputs */
+#define IFX_SSC_GPO_OUT_CLR _IOW(IFX_SSC_IOCTL_MAGIC, 33, unsigned int)
+/* get general purpose outputs */
+#define IFX_SSC_GPO_OUT_GET _IOR(IFX_SSC_IOCTL_MAGIC, 34, unsigned int)
+
+/*** serial framing ***/
+/* get status of serial framing */
+#define IFX_SSC_FRM_STATUS_GET _IOR(IFX_SSC_IOCTL_MAGIC, 48, struct ifx_ssc_frm_status)
+/* get counter reload values and control bits */
+#define IFX_SSC_FRM_CONTROL_GET _IOR(IFX_SSC_IOCTL_MAGIC, 49, struct ifx_ssc_frm_opts)
+/* set counter reload values and control bits */
+#define IFX_SSC_FRM_CONTROL_SET _IOW(IFX_SSC_IOCTL_MAGIC, 50, struct ifx_ssc_frm_opts)
+
+/*** batch execution ***/
+/* do batch execution */
+#define IFX_SSC_BATCH_EXEC _IOW(IFX_SSC_IOCTL_MAGIC, 64, struct ifx_ssc_batch_list)
+
+#ifdef __KERNEL__
+// routines from ifx_ssc.c
+// ### TO DO
+/* kernel interface for read and write */
+ssize_t ifx_ssc_kread (int, char *, size_t);
+ssize_t ifx_ssc_kwrite (int, const char *, size_t);
+
+#ifdef CONFIG_IFX_VP_KERNEL_TEST
+void ifx_ssc_tc (void);
+#endif // CONFIG_IFX_VP_KERNEL_TEST
+
+#endif //__KERNEL__
+#endif // __IFX_SSC_H
projects / openwrt-10.03 / .git / blobdiff