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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*********************************************************************
2 *
3 * Filename: toshoboe.h
4 * Version: 2.16
5 * Description: Driver for the Toshiba OBOE (or type-O or 701)
6 * FIR Chipset, also supports the DONAUOBOE (type-DO
7 * or d01) FIR chipset which as far as I know is
8 * register compatible.
9 * Status: Experimental.
10 * Author: James McKenzie <james@fishsoup.dhs.org>
11 * Created at: Sat May 8 12:35:27 1999
12 * Modified: 2.16 Martin Lucina <mato@kotelna.sk>
13 * Modified: 2.16 Sat Jun 22 18:54:29 2002 (sync headers)
14 * Modified: 2.17 Christian Gennerat <christian.gennerat@polytechnique.org>
15 * Modified: 2.17 jeu sep 12 08:50:20 2002 (add lock to be used by spinlocks)
16 *
17 * Copyright (c) 1999 James McKenzie, All Rights Reserved.
18 *
19 * This program is free software; you can redistribute it and/or
20 * modify it under the terms of the GNU General Public License as
21 * published by the Free Software Foundation; either version 2 of
22 * the License, or (at your option) any later version.
23 *
24 * Neither James McKenzie nor Cambridge University admit liability nor
25 * provide warranty for any of this software. This material is
26 * provided "AS-IS" and at no charge.
27 *
28 * Applicable Models : Libretto 100/110CT and many more.
29 * Toshiba refers to this chip as the type-O IR port,
30 * or the type-DO IR port.
31 *
32 * IrDA chip set list from Toshiba Computer Engineering Corp.
33 * model method maker controler Version
34 * Portege 320CT FIR,SIR Toshiba Oboe(Triangle)
35 * Portege 3010CT FIR,SIR Toshiba Oboe(Sydney)
36 * Portege 3015CT FIR,SIR Toshiba Oboe(Sydney)
37 * Portege 3020CT FIR,SIR Toshiba Oboe(Sydney)
38 * Portege 7020CT FIR,SIR ? ?
39 *
40 * Satell. 4090XCDT FIR,SIR ? ?
41 *
42 * Libretto 100CT FIR,SIR Toshiba Oboe
43 * Libretto 1000CT FIR,SIR Toshiba Oboe
44 *
45 * TECRA750DVD FIR,SIR Toshiba Oboe(Triangle) REV ID=14h
46 * TECRA780 FIR,SIR Toshiba Oboe(Sandlot) REV ID=32h,33h
47 * TECRA750CDT FIR,SIR Toshiba Oboe(Triangle) REV ID=13h,14h
48 * TECRA8000 FIR,SIR Toshiba Oboe(ISKUR) REV ID=23h
49 *
50 ********************************************************************/
51
52/* The documentation for this chip is allegedly released */
53/* However I have not seen it, not have I managed to contact */
54/* anyone who has. HOWEVER the chip bears a striking resemblence */
55/* to the IrDA controller in the Toshiba RISC TMPR3922 chip */
56/* the documentation for this is freely available at */
57/* http://www.toshiba.com/taec/components/Generic/TMPR3922.shtml */
58/* The mapping between the registers in that document and the */
59/* Registers in the 701 oboe chip are as follows */
60
61
62/* 3922 reg 701 regs, by bit numbers */
63/* 7- 0 15- 8 24-16 31-25 */
64/* $28 0x0 0x1 */
65/* $2c SEE NOTE 1 */
66/* $30 0x6 0x7 */
67/* $34 0x8 0x9 SEE NOTE 2 */
68/* $38 0x10 0x11 */
69/* $3C 0xe SEE NOTE 3 */
70/* $40 0x12 0x13 */
71/* $44 0x14 0x15 */
72/* $48 0x16 0x17 */
73/* $4c 0x18 0x19 */
74/* $50 0x1a 0x1b */
75
76/* FIXME: could be 0x1b 0x1a here */
77
78/* $54 0x1d 0x1c */
79/* $5C 0xf SEE NOTE 4 */
80/* $130 SEE NOTE 5 */
81/* $134 SEE NOTE 6 */
82/* */
83/* NOTES: */
84/* 1. The pointer to ring is packed in most unceremoniusly */
85/* 701 Register Address bits (A9-A0 must be zero) */
86/* 0x4: A17 A16 A15 A14 A13 A12 A11 A10 */
87/* 0x5: A25 A24 A23 A22 A21 A20 A19 A18 */
88/* 0x2: 0 0 A31 A30 A29 A28 A27 A26 */
89/* */
90/* 2. The M$ drivers do a write 0x1 to 0x9, however the 3922 */
91/* documentation would suggest that a write of 0x1 to 0x8 */
92/* would be more appropriate. */
93/* */
94/* 3. This assignment is tenuous at best, register 0xe seems to */
95/* have bits arranged 0 0 0 R/W R/W R/W R/W R/W */
96/* if either of the lower two bits are set the chip seems to */
97/* switch off */
98/* */
99/* 4. Bits 7-4 seem to be different 4 seems just to be generic */
100/* receiver busy flag */
101/* */
102/* 5. and 6. The IER and ISR have a different bit assignment */
103/* The lower three bits of both read back as ones */
104/* ISR is register 0xc, IER is register 0xd */
105/* 7 6 5 4 3 2 1 0 */
106/* 0xc: TxDone RxDone TxUndr RxOver SipRcv 1 1 1 */
107/* 0xd: TxDone RxDone TxUndr RxOver SipRcv 1 1 1 */
108/* TxDone xmitt done (generated only if generate interrupt bit */
109/* is set in the ring) */
110/* RxDone recv completed (or other recv condition if you set it */
111/* up */
112/* TxUnder underflow in Transmit FIFO */
113/* RxOver overflow in Recv FIFO */
114/* SipRcv received serial gap (or other condition you set) */
115/* Interrupts are enabled by writing a one to the IER register */
Robert P. J. Daybeb7dd82007-05-09 07:14:03 +0200116/* Interrupts are cleared by writing a one to the ISR register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117/* */
118/* 6. The remaining registers: 0x6 and 0x3 appear to be */
119/* reserved parts of 16 or 32 bit registersthe remainder */
120/* 0xa 0xb 0x1e 0x1f could possibly be (by their behaviour) */
121/* the Unicast Filter register at $58. */
122/* */
123/* 7. While the core obviously expects 32 bit accesses all the */
124/* M$ drivers do 8 bit accesses, infact the Miniport ones */
125/* write and read back the byte serveral times (why?) */
126
127
128#ifndef TOSHOBOE_H
129#define TOSHOBOE_H
130
131/* Registers */
132
133#define OBOE_IO_EXTENT 0x1f
134
135/*Receive and transmit slot pointers */
136#define OBOE_REG(i) (i+(self->base))
137#define OBOE_RXSLOT OBOE_REG(0x0)
138#define OBOE_TXSLOT OBOE_REG(0x1)
139#define OBOE_SLOT_MASK 0x3f
140
141#define OBOE_TXRING_OFFSET 0x200
142#define OBOE_TXRING_OFFSET_IN_SLOTS 0x40
143
144/*pointer to the ring */
145#define OBOE_RING_BASE0 OBOE_REG(0x4)
146#define OBOE_RING_BASE1 OBOE_REG(0x5)
147#define OBOE_RING_BASE2 OBOE_REG(0x2)
148#define OBOE_RING_BASE3 OBOE_REG(0x3)
149
150/*Number of slots in the ring */
151#define OBOE_RING_SIZE OBOE_REG(0x7)
152#define OBOE_RING_SIZE_RX4 0x00
153#define OBOE_RING_SIZE_RX8 0x01
154#define OBOE_RING_SIZE_RX16 0x03
155#define OBOE_RING_SIZE_RX32 0x07
156#define OBOE_RING_SIZE_RX64 0x0f
157#define OBOE_RING_SIZE_TX4 0x00
158#define OBOE_RING_SIZE_TX8 0x10
159#define OBOE_RING_SIZE_TX16 0x30
160#define OBOE_RING_SIZE_TX32 0x70
161#define OBOE_RING_SIZE_TX64 0xf0
162
163#define OBOE_RING_MAX_SIZE 64
164
165/*Causes the gubbins to re-examine the ring */
166#define OBOE_PROMPT OBOE_REG(0x9)
167#define OBOE_PROMPT_BIT 0x1
168
169/* Interrupt Status Register */
170#define OBOE_ISR OBOE_REG(0xc)
171/* Interrupt Enable Register */
172#define OBOE_IER OBOE_REG(0xd)
173/* Interrupt bits for IER and ISR */
174#define OBOE_INT_TXDONE 0x80
175#define OBOE_INT_RXDONE 0x40
176#define OBOE_INT_TXUNDER 0x20
177#define OBOE_INT_RXOVER 0x10
178#define OBOE_INT_SIP 0x08
179#define OBOE_INT_MASK 0xf8
180
181/*Reset Register */
182#define OBOE_CONFIG1 OBOE_REG(0xe)
183#define OBOE_CONFIG1_RST 0x01
184#define OBOE_CONFIG1_DISABLE 0x02
185#define OBOE_CONFIG1_4 0x08
186#define OBOE_CONFIG1_8 0x08
187
188#define OBOE_CONFIG1_ON 0x8
189#define OBOE_CONFIG1_RESET 0xf
190#define OBOE_CONFIG1_OFF 0xe
191
192#define OBOE_STATUS OBOE_REG(0xf)
193#define OBOE_STATUS_RXBUSY 0x10
194#define OBOE_STATUS_FIRRX 0x04
195#define OBOE_STATUS_MIRRX 0x02
196#define OBOE_STATUS_SIRRX 0x01
197
198
199/*Speed control registers */
200#define OBOE_CONFIG0L OBOE_REG(0x10)
201#define OBOE_CONFIG0H OBOE_REG(0x11)
202
203#define OBOE_CONFIG0H_TXONLOOP 0x80 /*Transmit when looping (dangerous) */
204#define OBOE_CONFIG0H_LOOP 0x40 /*Loopback Tx->Rx */
205#define OBOE_CONFIG0H_ENTX 0x10 /*Enable Tx */
206#define OBOE_CONFIG0H_ENRX 0x08 /*Enable Rx */
207#define OBOE_CONFIG0H_ENDMAC 0x04 /*Enable/reset* the DMA controller */
208#define OBOE_CONFIG0H_RCVANY 0x02 /*DMA mode 1=bytes, 0=dwords */
209
210#define OBOE_CONFIG0L_CRC16 0x80 /*CRC 1=16 bit 0=32 bit */
211#define OBOE_CONFIG0L_ENFIR 0x40 /*Enable FIR */
212#define OBOE_CONFIG0L_ENMIR 0x20 /*Enable MIR */
213#define OBOE_CONFIG0L_ENSIR 0x10 /*Enable SIR */
214#define OBOE_CONFIG0L_ENSIRF 0x08 /*Enable SIR framer */
215#define OBOE_CONFIG0L_SIRTEST 0x04 /*Enable SIR framer in MIR and FIR */
216#define OBOE_CONFIG0L_INVERTTX 0x02 /*Invert Tx Line */
217#define OBOE_CONFIG0L_INVERTRX 0x01 /*Invert Rx Line */
218
219#define OBOE_BOF OBOE_REG(0x12)
220#define OBOE_EOF OBOE_REG(0x13)
221
222#define OBOE_ENABLEL OBOE_REG(0x14)
223#define OBOE_ENABLEH OBOE_REG(0x15)
224
225#define OBOE_ENABLEH_PHYANDCLOCK 0x80 /*Toggle low to copy config in */
226#define OBOE_ENABLEH_CONFIGERR 0x40
227#define OBOE_ENABLEH_FIRON 0x20
228#define OBOE_ENABLEH_MIRON 0x10
229#define OBOE_ENABLEH_SIRON 0x08
230#define OBOE_ENABLEH_ENTX 0x04
231#define OBOE_ENABLEH_ENRX 0x02
232#define OBOE_ENABLEH_CRC16 0x01
233
234#define OBOE_ENABLEL_BROADCAST 0x01
235
236#define OBOE_CURR_PCONFIGL OBOE_REG(0x16) /*Current config */
237#define OBOE_CURR_PCONFIGH OBOE_REG(0x17)
238
239#define OBOE_NEW_PCONFIGL OBOE_REG(0x18)
240#define OBOE_NEW_PCONFIGH OBOE_REG(0x19)
241
242#define OBOE_PCONFIGH_BAUDMASK 0xfc
243#define OBOE_PCONFIGH_WIDTHMASK 0x04
244#define OBOE_PCONFIGL_WIDTHMASK 0xe0
245#define OBOE_PCONFIGL_PREAMBLEMASK 0x1f
246
247#define OBOE_PCONFIG_BAUDMASK 0xfc00
248#define OBOE_PCONFIG_BAUDSHIFT 10
249#define OBOE_PCONFIG_WIDTHMASK 0x04e0
250#define OBOE_PCONFIG_WIDTHSHIFT 5
251#define OBOE_PCONFIG_PREAMBLEMASK 0x001f
252#define OBOE_PCONFIG_PREAMBLESHIFT 0
253
254#define OBOE_MAXLENL OBOE_REG(0x1a)
255#define OBOE_MAXLENH OBOE_REG(0x1b)
256
257#define OBOE_RXCOUNTH OBOE_REG(0x1c) /*Reset on recipt */
258#define OBOE_RXCOUNTL OBOE_REG(0x1d) /*of whole packet */
259
260/* The PCI ID of the OBOE chip */
261#ifndef PCI_DEVICE_ID_FIR701
262#define PCI_DEVICE_ID_FIR701 0x0701
263#endif
264
265#ifndef PCI_DEVICE_ID_FIRD01
266#define PCI_DEVICE_ID_FIRD01 0x0d01
267#endif
268
269struct OboeSlot
270{
271 __u16 len; /*Tweleve bits of packet length */
272 __u8 unused;
273 __u8 control; /*Slot control/status see below */
274 __u32 address; /*Slot buffer address */
275}
276__attribute__ ((packed));
277
278#define OBOE_NTASKS OBOE_TXRING_OFFSET_IN_SLOTS
279
280struct OboeRing
281{
282 struct OboeSlot rx[OBOE_NTASKS];
283 struct OboeSlot tx[OBOE_NTASKS];
284};
285
286#define OBOE_RING_LEN (sizeof(struct OboeRing))
287
288
289#define OBOE_CTL_TX_HW_OWNS 0x80 /*W/R This slot owned by the hardware */
290#define OBOE_CTL_TX_DISTX_CRC 0x40 /*W Disable CRC generation for [FM]IR */
291#define OBOE_CTL_TX_BAD_CRC 0x20 /*W Generate bad CRC */
292#define OBOE_CTL_TX_SIP 0x10 /*W Generate an SIP after xmittion */
293#define OBOE_CTL_TX_MKUNDER 0x08 /*W Generate an underrun error */
294#define OBOE_CTL_TX_RTCENTX 0x04 /*W Enable receiver and generate TXdone */
295 /* After this slot is processed */
296#define OBOE_CTL_TX_UNDER 0x01 /*R Set by hardware to indicate underrun */
297
298
299#define OBOE_CTL_RX_HW_OWNS 0x80 /*W/R This slot owned by hardware */
300#define OBOE_CTL_RX_PHYERR 0x40 /*R Decoder error on receiption */
301#define OBOE_CTL_RX_CRCERR 0x20 /*R CRC error only set for [FM]IR */
302#define OBOE_CTL_RX_LENGTH 0x10 /*R Packet > max Rx length */
303#define OBOE_CTL_RX_OVER 0x08 /*R set to indicate an overflow */
304#define OBOE_CTL_RX_SIRBAD 0x04 /*R SIR had BOF in packet or ABORT sequence */
305#define OBOE_CTL_RX_RXEOF 0x02 /*R Finished receiving on this slot */
306
307
308struct toshoboe_cb
309{
310 struct net_device *netdev; /* Yes! we are some kind of netdevice */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 struct tty_driver ttydev;
312
313 struct irlap_cb *irlap; /* The link layer we are binded to */
314
315 chipio_t io; /* IrDA controller information */
316 struct qos_info qos; /* QoS capabilities for this device */
317
318 __u32 flags; /* Interface flags */
319
320 struct pci_dev *pdev; /*PCI device */
321 int base; /*IO base */
322
323
324 int txpending; /*how many tx's are pending */
325 int txs, rxs; /*Which slots are we at */
326
327 int irdad; /*Driver under control of netdev end */
328 int async; /*Driver under control of async end */
329
330
331 int stopped; /*Stopped by some or other APM stuff */
332
333 int filter; /*In SIR mode do we want to receive
334 frames or byte ranges */
335
336 void *ringbuf; /*The ring buffer */
337 struct OboeRing *ring; /*The ring */
338
339 void *tx_bufs[OBOE_RING_MAX_SIZE]; /*The buffers */
340 void *rx_bufs[OBOE_RING_MAX_SIZE];
341
342
343 int speed; /*Current setting of the speed */
344 int new_speed; /*Set to request a speed change */
345
346/* The spinlock protect critical parts of the driver.
347 * Locking is done like this :
348 * spin_lock_irqsave(&self->spinlock, flags);
349 * Releasing the lock :
350 * spin_unlock_irqrestore(&self->spinlock, flags);
351 */
352 spinlock_t spinlock;
353 /* Used for the probe and diagnostics code */
354 int int_rx;
355 int int_tx;
356 int int_txunder;
357 int int_rxover;
358 int int_sip;
359};
360
361
362#endif