/********************************************************************* * * Filename: ali-ircc.h * Version: 0.5 * Description: Driver for the ALI M1535D and M1543C FIR Controller * Status: Experimental. * Author: Benjamin Kong * Created at: 2000/10/16 03:46PM * Modified at: 2001/1/3 02:56PM * Modified by: Benjamin Kong * * Copyright (c) 2000 Benjamin Kong * All Rights Reserved * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * ********************************************************************/ #ifndef ALI_IRCC_H #define ALI_IRCC_H #include #include #include #include #include /* SIR Register */ /* Usr definition of linux/serial_reg.h */ /* FIR Register */ #define BANK0 0x20 #define BANK1 0x21 #define BANK2 0x22 #define BANK3 0x23 #define FIR_MCR 0x07 /* Master Control Register */ /* Bank 0 */ #define FIR_DR 0x00 /* Alias 0, FIR Data Register (R/W) */ #define FIR_IER 0x01 /* Alias 1, FIR Interrupt Enable Register (R/W) */ #define FIR_IIR 0x02 /* Alias 2, FIR Interrupt Identification Register (Read only) */ #define FIR_LCR_A 0x03 /* Alias 3, FIR Line Control Register A (R/W) */ #define FIR_LCR_B 0x04 /* Alias 4, FIR Line Control Register B (R/W) */ #define FIR_LSR 0x05 /* Alias 5, FIR Line Status Register (R/W) */ #define FIR_BSR 0x06 /* Alias 6, FIR Bus Status Register (Read only) */ /* Alias 1 */ #define IER_FIFO 0x10 /* FIR FIFO Interrupt Enable */ #define IER_TIMER 0x20 /* Timer Interrupt Enable */ #define IER_EOM 0x40 /* End of Message Interrupt Enable */ #define IER_ACT 0x80 /* Active Frame Interrupt Enable */ /* Alias 2 */ #define IIR_FIFO 0x10 /* FIR FIFO Interrupt */ #define IIR_TIMER 0x20 /* Timer Interrupt */ #define IIR_EOM 0x40 /* End of Message Interrupt */ #define IIR_ACT 0x80 /* Active Frame Interrupt */ /* Alias 3 */ #define LCR_A_FIFO_RESET 0x80 /* FIFO Reset */ /* Alias 4 */ #define LCR_B_BW 0x10 /* Brick Wall */ #define LCR_B_SIP 0x20 /* SIP Enable */ #define LCR_B_TX_MODE 0x40 /* Transmit Mode */ #define LCR_B_RX_MODE 0x80 /* Receive Mode */ /* Alias 5 */ #define LSR_FIR_LSA 0x00 /* FIR Line Status Address */ #define LSR_FRAME_ABORT 0x08 /* Frame Abort */ #define LSR_CRC_ERROR 0x10 /* CRC Error */ #define LSR_SIZE_ERROR 0x20 /* Size Error */ #define LSR_FRAME_ERROR 0x40 /* Frame Error */ #define LSR_FIFO_UR 0x80 /* FIFO Underrun */ #define LSR_FIFO_OR 0x80 /* FIFO Overrun */ /* Alias 6 */ #define BSR_FIFO_NOT_EMPTY 0x80 /* FIFO Not Empty */ /* Bank 1 */ #define FIR_CR 0x00 /* Alias 0, FIR Configuration Register (R/W) */ #define FIR_FIFO_TR 0x01 /* Alias 1, FIR FIFO Threshold Register (R/W) */ #define FIR_DMA_TR 0x02 /* Alias 2, FIR DMA Threshold Register (R/W) */ #define FIR_TIMER_IIR 0x03 /* Alias 3, FIR Timer interrupt interval register (W/O) */ #define FIR_FIFO_FR 0x03 /* Alias 3, FIR FIFO Flag register (R/O) */ #define FIR_FIFO_RAR 0x04 /* Alias 4, FIR FIFO Read Address register (R/O) */ #define FIR_FIFO_WAR 0x05 /* Alias 5, FIR FIFO Write Address register (R/O) */ #define FIR_TR 0x06 /* Alias 6, Test REgister (W/O) */ /* Alias 0 */ #define CR_DMA_EN 0x01 /* DMA Enable */ #define CR_DMA_BURST 0x02 /* DMA Burst Mode */ #define CR_TIMER_EN 0x08 /* Timer Enable */ /* Alias 3 */ #define TIMER_IIR_500 0x00 /* 500 us */ #define TIMER_IIR_1ms 0x01 /* 1 ms */ #define TIMER_IIR_2ms 0x02 /* 2 ms */ #define TIMER_IIR_4ms 0x03 /* 4 ms */ /* Bank 2 */ #define FIR_IRDA_CR 0x00 /* Alias 0, IrDA Control Register (R/W) */ #define FIR_BOF_CR 0x01 /* Alias 1, BOF Count Register (R/W) */ #define FIR_BW_CR 0x02 /* Alias 2, Brick Wall Count Register (R/W) */ #define FIR_TX_DSR_HI 0x03 /* Alias 3, TX Data Size Register (high) (R/W) */ #define FIR_TX_DSR_LO 0x04 /* Alias 4, TX Data Size Register (low) (R/W) */ #define FIR_RX_DSR_HI 0x05 /* Alias 5, RX Data Size Register (high) (R/W) */ #define FIR_RX_DSR_LO 0x06 /* Alias 6, RX Data Size Register (low) (R/W) */ /* Alias 0 */ #define IRDA_CR_HDLC1152 0x80 /* 1.152Mbps HDLC Select */ #define IRDA_CR_CRC 0X40 /* CRC Select. */ #define IRDA_CR_HDLC 0x20 /* HDLC select. */ #define IRDA_CR_HP_MODE 0x10 /* HP mode (read only) */ #define IRDA_CR_SD_ST 0x08 /* SD/MODE State. */ #define IRDA_CR_FIR_SIN 0x04 /* FIR SIN Select. */ #define IRDA_CR_ITTX_0 0x02 /* SOUT State. IRTX force to 0 */ #define IRDA_CR_ITTX_1 0x03 /* SOUT State. IRTX force to 1 */ /* Bank 3 */ #define FIR_ID_VR 0x00 /* Alias 0, FIR ID Version Register (R/O) */ #define FIR_MODULE_CR 0x01 /* Alias 1, FIR Module Control Register (R/W) */ #define FIR_IO_BASE_HI 0x02 /* Alias 2, FIR Higher I/O Base Address Register (R/O) */ #define FIR_IO_BASE_LO 0x03 /* Alias 3, FIR Lower I/O Base Address Register (R/O) */ #define FIR_IRQ_CR 0x04 /* Alias 4, FIR IRQ Channel Register (R/O) */ #define FIR_DMA_CR 0x05 /* Alias 5, FIR DMA Channel Register (R/O) */ struct ali_chip { char *name; int cfg[2]; unsigned char entr1; unsigned char entr2; unsigned char cid_index; unsigned char cid_value; int (*probe)(struct ali_chip *chip, chipio_t *info); int (*init)(struct ali_chip *chip, chipio_t *info); }; typedef struct ali_chip ali_chip_t; /* DMA modes needed */ #define DMA_TX_MODE 0x08 /* Mem to I/O, ++, demand. */ #define DMA_RX_MODE 0x04 /* I/O to mem, ++, demand. */ #define MAX_TX_WINDOW 7 #define MAX_RX_WINDOW 7 #define TX_FIFO_Threshold 8 #define RX_FIFO_Threshold 1 #define TX_DMA_Threshold 1 #define RX_DMA_Threshold 1 /* For storing entries in the status FIFO */ struct st_fifo_entry { int status; int len; }; struct st_fifo { struct st_fifo_entry entries[MAX_RX_WINDOW]; int pending_bytes; int head; int tail; int len; }; struct frame_cb { void *start; /* Start of frame in DMA mem */ int len; /* Length of frame in DMA mem */ }; struct tx_fifo { struct frame_cb queue[MAX_TX_WINDOW]; /* Info about frames in queue */ int ptr; /* Currently being sent */ int len; /* Length of queue */ int free; /* Next free slot */ void *tail; /* Next free start in DMA mem */ }; /* Private data for each instance */ struct ali_ircc_cb { struct st_fifo st_fifo; /* Info about received frames */ struct tx_fifo tx_fifo; /* Info about frames to be transmitted */ struct net_device *netdev; /* Yes! we are some kind of netdevice */ struct irlap_cb *irlap; /* The link layer we are binded to */ struct qos_info qos; /* QoS capabilities for this device */ chipio_t io; /* IrDA controller information */ iobuff_t tx_buff; /* Transmit buffer */ iobuff_t rx_buff; /* Receive buffer */ dma_addr_t tx_buff_dma; dma_addr_t rx_buff_dma; __u8 ier; /* Interrupt enable register */ __u8 InterruptID; /* Interrupt ID */ __u8 BusStatus; /* Bus Status */ __u8 LineStatus; /* Line Status */ unsigned char rcvFramesOverflow; struct timeval stamp; struct timeval now; spinlock_t lock; /* For serializing operations */ __u32 new_speed; int index; /* Instance index */ unsigned char fifo_opti_buf; }; static inline void switch_bank(int iobase, int bank) { outb(bank, iobase+FIR_MCR); } #endif /* ALI_IRCC_H */