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linux-stable-rt/drivers/net/irda/donauboe.h

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/*********************************************************************
*
* Filename: toshoboe.h
* Version: 2.16
* Description: Driver for the Toshiba OBOE (or type-O or 701)
* FIR Chipset, also supports the DONAUOBOE (type-DO
* or d01) FIR chipset which as far as I know is
* register compatible.
* Status: Experimental.
* Author: James McKenzie <james@fishsoup.dhs.org>
* Created at: Sat May 8 12:35:27 1999
* Modified: 2.16 Martin Lucina <mato@kotelna.sk>
* Modified: 2.16 Sat Jun 22 18:54:29 2002 (sync headers)
* Modified: 2.17 Christian Gennerat <christian.gennerat@polytechnique.org>
* Modified: 2.17 jeu sep 12 08:50:20 2002 (add lock to be used by spinlocks)
*
* Copyright (c) 1999 James McKenzie, 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.
*
* Neither James McKenzie nor Cambridge University admit liability nor
* provide warranty for any of this software. This material is
* provided "AS-IS" and at no charge.
*
* Applicable Models : Libretto 100/110CT and many more.
* Toshiba refers to this chip as the type-O IR port,
* or the type-DO IR port.
*
* IrDA chip set list from Toshiba Computer Engineering Corp.
* model method maker controler Version
* Portege 320CT FIR,SIR Toshiba Oboe(Triangle)
* Portege 3010CT FIR,SIR Toshiba Oboe(Sydney)
* Portege 3015CT FIR,SIR Toshiba Oboe(Sydney)
* Portege 3020CT FIR,SIR Toshiba Oboe(Sydney)
* Portege 7020CT FIR,SIR ? ?
*
* Satell. 4090XCDT FIR,SIR ? ?
*
* Libretto 100CT FIR,SIR Toshiba Oboe
* Libretto 1000CT FIR,SIR Toshiba Oboe
*
* TECRA750DVD FIR,SIR Toshiba Oboe(Triangle) REV ID=14h
* TECRA780 FIR,SIR Toshiba Oboe(Sandlot) REV ID=32h,33h
* TECRA750CDT FIR,SIR Toshiba Oboe(Triangle) REV ID=13h,14h
* TECRA8000 FIR,SIR Toshiba Oboe(ISKUR) REV ID=23h
*
********************************************************************/
/* The documentation for this chip is allegedly released */
/* However I have not seen it, not have I managed to contact */
/* anyone who has. HOWEVER the chip bears a striking resemblence */
/* to the IrDA controller in the Toshiba RISC TMPR3922 chip */
/* the documentation for this is freely available at */
/* http://www.toshiba.com/taec/components/Generic/TMPR3922.shtml */
/* The mapping between the registers in that document and the */
/* Registers in the 701 oboe chip are as follows */
/* 3922 reg 701 regs, by bit numbers */
/* 7- 0 15- 8 24-16 31-25 */
/* $28 0x0 0x1 */
/* $2c SEE NOTE 1 */
/* $30 0x6 0x7 */
/* $34 0x8 0x9 SEE NOTE 2 */
/* $38 0x10 0x11 */
/* $3C 0xe SEE NOTE 3 */
/* $40 0x12 0x13 */
/* $44 0x14 0x15 */
/* $48 0x16 0x17 */
/* $4c 0x18 0x19 */
/* $50 0x1a 0x1b */
/* FIXME: could be 0x1b 0x1a here */
/* $54 0x1d 0x1c */
/* $5C 0xf SEE NOTE 4 */
/* $130 SEE NOTE 5 */
/* $134 SEE NOTE 6 */
/* */
/* NOTES: */
/* 1. The pointer to ring is packed in most unceremoniusly */
/* 701 Register Address bits (A9-A0 must be zero) */
/* 0x4: A17 A16 A15 A14 A13 A12 A11 A10 */
/* 0x5: A25 A24 A23 A22 A21 A20 A19 A18 */
/* 0x2: 0 0 A31 A30 A29 A28 A27 A26 */
/* */
/* 2. The M$ drivers do a write 0x1 to 0x9, however the 3922 */
/* documentation would suggest that a write of 0x1 to 0x8 */
/* would be more appropriate. */
/* */
/* 3. This assignment is tenuous at best, register 0xe seems to */
/* have bits arranged 0 0 0 R/W R/W R/W R/W R/W */
/* if either of the lower two bits are set the chip seems to */
/* switch off */
/* */
/* 4. Bits 7-4 seem to be different 4 seems just to be generic */
/* receiver busy flag */
/* */
/* 5. and 6. The IER and ISR have a different bit assignment */
/* The lower three bits of both read back as ones */
/* ISR is register 0xc, IER is register 0xd */
/* 7 6 5 4 3 2 1 0 */
/* 0xc: TxDone RxDone TxUndr RxOver SipRcv 1 1 1 */
/* 0xd: TxDone RxDone TxUndr RxOver SipRcv 1 1 1 */
/* TxDone xmitt done (generated only if generate interrupt bit */
/* is set in the ring) */
/* RxDone recv completed (or other recv condition if you set it */
/* up */
/* TxUnder underflow in Transmit FIFO */
/* RxOver overflow in Recv FIFO */
/* SipRcv received serial gap (or other condition you set) */
/* Interrupts are enabled by writing a one to the IER register */
/* Interrupts are cleared by writing a one to the ISR register */
/* */
/* 6. The remaining registers: 0x6 and 0x3 appear to be */
/* reserved parts of 16 or 32 bit registersthe remainder */
/* 0xa 0xb 0x1e 0x1f could possibly be (by their behaviour) */
/* the Unicast Filter register at $58. */
/* */
/* 7. While the core obviously expects 32 bit accesses all the */
/* M$ drivers do 8 bit accesses, infact the Miniport ones */
/* write and read back the byte serveral times (why?) */
#ifndef TOSHOBOE_H
#define TOSHOBOE_H
/* Registers */
#define OBOE_IO_EXTENT 0x1f
/*Receive and transmit slot pointers */
#define OBOE_REG(i) (i+(self->base))
#define OBOE_RXSLOT OBOE_REG(0x0)
#define OBOE_TXSLOT OBOE_REG(0x1)
#define OBOE_SLOT_MASK 0x3f
#define OBOE_TXRING_OFFSET 0x200
#define OBOE_TXRING_OFFSET_IN_SLOTS 0x40
/*pointer to the ring */
#define OBOE_RING_BASE0 OBOE_REG(0x4)
#define OBOE_RING_BASE1 OBOE_REG(0x5)
#define OBOE_RING_BASE2 OBOE_REG(0x2)
#define OBOE_RING_BASE3 OBOE_REG(0x3)
/*Number of slots in the ring */
#define OBOE_RING_SIZE OBOE_REG(0x7)
#define OBOE_RING_SIZE_RX4 0x00
#define OBOE_RING_SIZE_RX8 0x01
#define OBOE_RING_SIZE_RX16 0x03
#define OBOE_RING_SIZE_RX32 0x07
#define OBOE_RING_SIZE_RX64 0x0f
#define OBOE_RING_SIZE_TX4 0x00
#define OBOE_RING_SIZE_TX8 0x10
#define OBOE_RING_SIZE_TX16 0x30
#define OBOE_RING_SIZE_TX32 0x70
#define OBOE_RING_SIZE_TX64 0xf0
#define OBOE_RING_MAX_SIZE 64
/*Causes the gubbins to re-examine the ring */
#define OBOE_PROMPT OBOE_REG(0x9)
#define OBOE_PROMPT_BIT 0x1
/* Interrupt Status Register */
#define OBOE_ISR OBOE_REG(0xc)
/* Interrupt Enable Register */
#define OBOE_IER OBOE_REG(0xd)
/* Interrupt bits for IER and ISR */
#define OBOE_INT_TXDONE 0x80
#define OBOE_INT_RXDONE 0x40
#define OBOE_INT_TXUNDER 0x20
#define OBOE_INT_RXOVER 0x10
#define OBOE_INT_SIP 0x08
#define OBOE_INT_MASK 0xf8
/*Reset Register */
#define OBOE_CONFIG1 OBOE_REG(0xe)
#define OBOE_CONFIG1_RST 0x01
#define OBOE_CONFIG1_DISABLE 0x02
#define OBOE_CONFIG1_4 0x08
#define OBOE_CONFIG1_8 0x08
#define OBOE_CONFIG1_ON 0x8
#define OBOE_CONFIG1_RESET 0xf
#define OBOE_CONFIG1_OFF 0xe
#define OBOE_STATUS OBOE_REG(0xf)
#define OBOE_STATUS_RXBUSY 0x10
#define OBOE_STATUS_FIRRX 0x04
#define OBOE_STATUS_MIRRX 0x02
#define OBOE_STATUS_SIRRX 0x01
/*Speed control registers */
#define OBOE_CONFIG0L OBOE_REG(0x10)
#define OBOE_CONFIG0H OBOE_REG(0x11)
#define OBOE_CONFIG0H_TXONLOOP 0x80 /*Transmit when looping (dangerous) */
#define OBOE_CONFIG0H_LOOP 0x40 /*Loopback Tx->Rx */
#define OBOE_CONFIG0H_ENTX 0x10 /*Enable Tx */
#define OBOE_CONFIG0H_ENRX 0x08 /*Enable Rx */
#define OBOE_CONFIG0H_ENDMAC 0x04 /*Enable/reset* the DMA controller */
#define OBOE_CONFIG0H_RCVANY 0x02 /*DMA mode 1=bytes, 0=dwords */
#define OBOE_CONFIG0L_CRC16 0x80 /*CRC 1=16 bit 0=32 bit */
#define OBOE_CONFIG0L_ENFIR 0x40 /*Enable FIR */
#define OBOE_CONFIG0L_ENMIR 0x20 /*Enable MIR */
#define OBOE_CONFIG0L_ENSIR 0x10 /*Enable SIR */
#define OBOE_CONFIG0L_ENSIRF 0x08 /*Enable SIR framer */
#define OBOE_CONFIG0L_SIRTEST 0x04 /*Enable SIR framer in MIR and FIR */
#define OBOE_CONFIG0L_INVERTTX 0x02 /*Invert Tx Line */
#define OBOE_CONFIG0L_INVERTRX 0x01 /*Invert Rx Line */
#define OBOE_BOF OBOE_REG(0x12)
#define OBOE_EOF OBOE_REG(0x13)
#define OBOE_ENABLEL OBOE_REG(0x14)
#define OBOE_ENABLEH OBOE_REG(0x15)
#define OBOE_ENABLEH_PHYANDCLOCK 0x80 /*Toggle low to copy config in */
#define OBOE_ENABLEH_CONFIGERR 0x40
#define OBOE_ENABLEH_FIRON 0x20
#define OBOE_ENABLEH_MIRON 0x10
#define OBOE_ENABLEH_SIRON 0x08
#define OBOE_ENABLEH_ENTX 0x04
#define OBOE_ENABLEH_ENRX 0x02
#define OBOE_ENABLEH_CRC16 0x01
#define OBOE_ENABLEL_BROADCAST 0x01
#define OBOE_CURR_PCONFIGL OBOE_REG(0x16) /*Current config */
#define OBOE_CURR_PCONFIGH OBOE_REG(0x17)
#define OBOE_NEW_PCONFIGL OBOE_REG(0x18)
#define OBOE_NEW_PCONFIGH OBOE_REG(0x19)
#define OBOE_PCONFIGH_BAUDMASK 0xfc
#define OBOE_PCONFIGH_WIDTHMASK 0x04
#define OBOE_PCONFIGL_WIDTHMASK 0xe0
#define OBOE_PCONFIGL_PREAMBLEMASK 0x1f
#define OBOE_PCONFIG_BAUDMASK 0xfc00
#define OBOE_PCONFIG_BAUDSHIFT 10
#define OBOE_PCONFIG_WIDTHMASK 0x04e0
#define OBOE_PCONFIG_WIDTHSHIFT 5
#define OBOE_PCONFIG_PREAMBLEMASK 0x001f
#define OBOE_PCONFIG_PREAMBLESHIFT 0
#define OBOE_MAXLENL OBOE_REG(0x1a)
#define OBOE_MAXLENH OBOE_REG(0x1b)
#define OBOE_RXCOUNTH OBOE_REG(0x1c) /*Reset on recipt */
#define OBOE_RXCOUNTL OBOE_REG(0x1d) /*of whole packet */
/* The PCI ID of the OBOE chip */
#ifndef PCI_DEVICE_ID_FIR701
#define PCI_DEVICE_ID_FIR701 0x0701
#endif
#ifndef PCI_DEVICE_ID_FIRD01
#define PCI_DEVICE_ID_FIRD01 0x0d01
#endif
struct OboeSlot
{
__u16 len; /*Tweleve bits of packet length */
__u8 unused;
__u8 control; /*Slot control/status see below */
__u32 address; /*Slot buffer address */
}
__attribute__ ((packed));
#define OBOE_NTASKS OBOE_TXRING_OFFSET_IN_SLOTS
struct OboeRing
{
struct OboeSlot rx[OBOE_NTASKS];
struct OboeSlot tx[OBOE_NTASKS];
};
#define OBOE_RING_LEN (sizeof(struct OboeRing))
#define OBOE_CTL_TX_HW_OWNS 0x80 /*W/R This slot owned by the hardware */
#define OBOE_CTL_TX_DISTX_CRC 0x40 /*W Disable CRC generation for [FM]IR */
#define OBOE_CTL_TX_BAD_CRC 0x20 /*W Generate bad CRC */
#define OBOE_CTL_TX_SIP 0x10 /*W Generate an SIP after xmittion */
#define OBOE_CTL_TX_MKUNDER 0x08 /*W Generate an underrun error */
#define OBOE_CTL_TX_RTCENTX 0x04 /*W Enable receiver and generate TXdone */
/* After this slot is processed */
#define OBOE_CTL_TX_UNDER 0x01 /*R Set by hardware to indicate underrun */
#define OBOE_CTL_RX_HW_OWNS 0x80 /*W/R This slot owned by hardware */
#define OBOE_CTL_RX_PHYERR 0x40 /*R Decoder error on receiption */
#define OBOE_CTL_RX_CRCERR 0x20 /*R CRC error only set for [FM]IR */
#define OBOE_CTL_RX_LENGTH 0x10 /*R Packet > max Rx length */
#define OBOE_CTL_RX_OVER 0x08 /*R set to indicate an overflow */
#define OBOE_CTL_RX_SIRBAD 0x04 /*R SIR had BOF in packet or ABORT sequence */
#define OBOE_CTL_RX_RXEOF 0x02 /*R Finished receiving on this slot */
struct toshoboe_cb
{
struct net_device *netdev; /* Yes! we are some kind of netdevice */
struct tty_driver ttydev;
struct irlap_cb *irlap; /* The link layer we are binded to */
chipio_t io; /* IrDA controller information */
struct qos_info qos; /* QoS capabilities for this device */
__u32 flags; /* Interface flags */
struct pci_dev *pdev; /*PCI device */
int base; /*IO base */
int txpending; /*how many tx's are pending */
int txs, rxs; /*Which slots are we at */
int irdad; /*Driver under control of netdev end */
int async; /*Driver under control of async end */
int stopped; /*Stopped by some or other APM stuff */
int filter; /*In SIR mode do we want to receive
frames or byte ranges */
void *ringbuf; /*The ring buffer */
struct OboeRing *ring; /*The ring */
void *tx_bufs[OBOE_RING_MAX_SIZE]; /*The buffers */
void *rx_bufs[OBOE_RING_MAX_SIZE];
int speed; /*Current setting of the speed */
int new_speed; /*Set to request a speed change */
/* The spinlock protect critical parts of the driver.
* Locking is done like this :
* spin_lock_irqsave(&self->spinlock, flags);
* Releasing the lock :
* spin_unlock_irqrestore(&self->spinlock, flags);
*/
spinlock_t spinlock;
/* Used for the probe and diagnostics code */
int int_rx;
int int_tx;
int int_txunder;
int int_rxover;
int int_sip;
};
#endif
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