tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*********************************************************************
2 *
3 * Filename: via-ircc.h
4 * Version: 1.0
5 * Description: Driver for the VIA VT8231/VT8233 IrDA chipsets
6 * Author: VIA Technologies, inc
7 * Date : 08/06/2003
8
9Copyright (c) 1998-2003 VIA Technologies, Inc.
10
11This program is free software; you can redistribute it and/or modify it under
12the terms of the GNU General Public License as published by the Free Software
13Foundation; either version 2, or (at your option) any later version.
14
15This program is distributed in the hope that it will be useful, but WITHOUT
16ANY WARRANTIES OR REPRESENTATIONS; without even the implied warranty of
17MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
18See the GNU General Public License for more details.
19
20You should have received a copy of the GNU General Public License along with
21this program; if not, see <http://www.gnu.org/licenses/>.
22
23 * Comment:
24 * jul/08/2002 : Rx buffer length should use Rx ring ptr.
25 * Oct/28/2002 : Add SB id for 3147 and 3177.
26 * jul/09/2002 : only implement two kind of dongle currently.
27 * Oct/02/2002 : work on VT8231 and VT8233 .
28 * Aug/06/2003 : change driver format to pci driver .
29 ********************************************************************/
30#ifndef via_IRCC_H
31#define via_IRCC_H
32#include <linux/time.h>
33#include <linux/spinlock.h>
34#include <linux/pm.h>
35#include <linux/types.h>
36#include <asm/io.h>
37
38#define MAX_TX_WINDOW 7
39#define MAX_RX_WINDOW 7
40
41struct st_fifo_entry {
42 int status;
43 int len;
44};
45
46struct st_fifo {
47 struct st_fifo_entry entries[MAX_RX_WINDOW + 2];
48 int pending_bytes;
49 int head;
50 int tail;
51 int len;
52};
53
54struct frame_cb {
55 void *start; /* Start of frame in DMA mem */
56 int len; /* Length of frame in DMA mem */
57};
58
59struct tx_fifo {
60 struct frame_cb queue[MAX_TX_WINDOW + 2]; /* Info about frames in queue */
61 int ptr; /* Currently being sent */
62 int len; /* Length of queue */
63 int free; /* Next free slot */
64 void *tail; /* Next free start in DMA mem */
65};
66
67
68struct eventflag // for keeping track of Interrupt Events
69{
70 //--------tx part
71 unsigned char TxFIFOUnderRun;
72 unsigned char EOMessage;
73 unsigned char TxFIFOReady;
74 unsigned char EarlyEOM;
75 //--------rx part
76 unsigned char PHYErr;
77 unsigned char CRCErr;
78 unsigned char RxFIFOOverRun;
79 unsigned char EOPacket;
80 unsigned char RxAvail;
81 unsigned char TooLargePacket;
82 unsigned char SIRBad;
83 //--------unknown
84 unsigned char Unknown;
85 //----------
86 unsigned char TimeOut;
87 unsigned char RxDMATC;
88 unsigned char TxDMATC;
89};
90
91/* Private data for each instance */
92struct via_ircc_cb {
93 struct st_fifo st_fifo; /* Info about received frames */
94 struct tx_fifo tx_fifo; /* Info about frames to be transmitted */
95
96 struct net_device *netdev; /* Yes! we are some kind of netdevice */
97
98 struct irlap_cb *irlap; /* The link layer we are binded to */
99 struct qos_info qos; /* QoS capabilities for this device */
100
101 chipio_t io; /* IrDA controller information */
102 iobuff_t tx_buff; /* Transmit buffer */
103 iobuff_t rx_buff; /* Receive buffer */
104 dma_addr_t tx_buff_dma;
105 dma_addr_t rx_buff_dma;
106
107 __u8 ier; /* Interrupt enable register */
108
109 struct timeval stamp;
110 struct timeval now;
111
112 spinlock_t lock; /* For serializing operations */
113
114 __u32 flags; /* Interface flags */
115 __u32 new_speed;
116 int index; /* Instance index */
117
118 struct eventflag EventFlag;
119 unsigned int chip_id; /* to remember chip id */
120 unsigned int RetryCount;
121 unsigned int RxDataReady;
122 unsigned int RxLastCount;
123};
124
125
126//---------I=Infrared, H=Host, M=Misc, T=Tx, R=Rx, ST=Status,
127// CF=Config, CT=Control, L=Low, H=High, C=Count
128#define I_CF_L_0 0x10
129#define I_CF_H_0 0x11
130#define I_SIR_BOF 0x12
131#define I_SIR_EOF 0x13
132#define I_ST_CT_0 0x15
133#define I_ST_L_1 0x16
134#define I_ST_H_1 0x17
135#define I_CF_L_1 0x18
136#define I_CF_H_1 0x19
137#define I_CF_L_2 0x1a
138#define I_CF_H_2 0x1b
139#define I_CF_3 0x1e
140#define H_CT 0x20
141#define H_ST 0x21
142#define M_CT 0x22
143#define TX_CT_1 0x23
144#define TX_CT_2 0x24
145#define TX_ST 0x25
146#define RX_CT 0x26
147#define RX_ST 0x27
148#define RESET 0x28
149#define P_ADDR 0x29
150#define RX_C_L 0x2a
151#define RX_C_H 0x2b
152#define RX_P_L 0x2c
153#define RX_P_H 0x2d
154#define TX_C_L 0x2e
155#define TX_C_H 0x2f
156#define TIMER 0x32
157#define I_CF_4 0x33
158#define I_T_C_L 0x34
159#define I_T_C_H 0x35
160#define VERSION 0x3f
161//-------------------------------
162#define StartAddr 0x10 // the first register address
163#define EndAddr 0x3f // the last register address
164#define GetBit(val,bit) val = (unsigned char) ((val>>bit) & 0x1)
165 // Returns the bit
166#define SetBit(val,bit) val= (unsigned char ) (val | (0x1 << bit))
167 // Sets bit to 1
168#define ResetBit(val,bit) val= (unsigned char ) (val & ~(0x1 << bit))
169 // Sets bit to 0
170
171#define OFF 0
172#define ON 1
173#define DMA_TX_MODE 0x08
174#define DMA_RX_MODE 0x04
175
176#define DMA1 0
177#define DMA2 0xc0
178#define MASK1 DMA1+0x0a
179#define MASK2 DMA2+0x14
180
181#define Clk_bit 0x40
182#define Tx_bit 0x01
183#define Rd_Valid 0x08
184#define RxBit 0x08
185
186static void DisableDmaChannel(unsigned int channel)
187{
188 switch (channel) { // 8 Bit DMA channels DMAC1
189 case 0:
190 outb(4, MASK1); //mask channel 0
191 break;
192 case 1:
193 outb(5, MASK1); //Mask channel 1
194 break;
195 case 2:
196 outb(6, MASK1); //Mask channel 2
197 break;
198 case 3:
199 outb(7, MASK1); //Mask channel 3
200 break;
201 case 5:
202 outb(5, MASK2); //Mask channel 5
203 break;
204 case 6:
205 outb(6, MASK2); //Mask channel 6
206 break;
207 case 7:
208 outb(7, MASK2); //Mask channel 7
209 break;
210 default:
211 break;
212 }
213}
214
215static unsigned char ReadLPCReg(int iRegNum)
216{
217 unsigned char iVal;
218
219 outb(0x87, 0x2e);
220 outb(0x87, 0x2e);
221 outb(iRegNum, 0x2e);
222 iVal = inb(0x2f);
223 outb(0xaa, 0x2e);
224
225 return iVal;
226}
227
228static void WriteLPCReg(int iRegNum, unsigned char iVal)
229{
230
231 outb(0x87, 0x2e);
232 outb(0x87, 0x2e);
233 outb(iRegNum, 0x2e);
234 outb(iVal, 0x2f);
235 outb(0xAA, 0x2e);
236}
237
238static __u8 ReadReg(unsigned int BaseAddr, int iRegNum)
239{
240 return (__u8) inb(BaseAddr + iRegNum);
241}
242
243static void WriteReg(unsigned int BaseAddr, int iRegNum, unsigned char iVal)
244{
245 outb(iVal, BaseAddr + iRegNum);
246}
247
248static int WriteRegBit(unsigned int BaseAddr, unsigned char RegNum,
249 unsigned char BitPos, unsigned char value)
250{
251 __u8 Rtemp, Wtemp;
252
253 if (BitPos > 7) {
254 return -1;
255 }
256 if ((RegNum < StartAddr) || (RegNum > EndAddr))
257 return -1;
258 Rtemp = ReadReg(BaseAddr, RegNum);
259 if (value == 0)
260 Wtemp = ResetBit(Rtemp, BitPos);
261 else {
262 if (value == 1)
263 Wtemp = SetBit(Rtemp, BitPos);
264 else
265 return -1;
266 }
267 WriteReg(BaseAddr, RegNum, Wtemp);
268 return 0;
269}
270
271static __u8 CheckRegBit(unsigned int BaseAddr, unsigned char RegNum,
272 unsigned char BitPos)
273{
274 __u8 temp;
275
276 if (BitPos > 7)
277 return 0xff;
278 if ((RegNum < StartAddr) || (RegNum > EndAddr)) {
279// printf("what is the register %x!\n",RegNum);
280 }
281 temp = ReadReg(BaseAddr, RegNum);
282 return GetBit(temp, BitPos);
283}
284
285static void SetMaxRxPacketSize(__u16 iobase, __u16 size)
286{
287 __u16 low, high;
288 if ((size & 0xe000) == 0) {
289 low = size & 0x00ff;
290 high = (size & 0x1f00) >> 8;
291 WriteReg(iobase, I_CF_L_2, low);
292 WriteReg(iobase, I_CF_H_2, high);
293
294 }
295
296}
297
298//for both Rx and Tx
299
300static void SetFIFO(__u16 iobase, __u16 value)
301{
302 switch (value) {
303 case 128:
304 WriteRegBit(iobase, 0x11, 0, 0);
305 WriteRegBit(iobase, 0x11, 7, 1);
306 break;
307 case 64:
308 WriteRegBit(iobase, 0x11, 0, 0);
309 WriteRegBit(iobase, 0x11, 7, 0);
310 break;
311 case 32:
312 WriteRegBit(iobase, 0x11, 0, 1);
313 WriteRegBit(iobase, 0x11, 7, 0);
314 break;
315 default:
316 WriteRegBit(iobase, 0x11, 0, 0);
317 WriteRegBit(iobase, 0x11, 7, 0);
318 }
319
320}
321
322#define CRC16(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_L_0,7,val) //0 for 32 CRC
323/*
324#define SetVFIR(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_H_0,5,val)
325#define SetFIR(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_L_0,6,val)
326#define SetMIR(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_L_0,5,val)
327#define SetSIR(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_L_0,4,val)
328*/
329#define SIRFilter(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_L_0,3,val)
330#define Filter(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_L_0,2,val)
331#define InvertTX(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_L_0,1,val)
332#define InvertRX(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_L_0,0,val)
333//****************************I_CF_H_0
334#define EnableTX(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_H_0,4,val)
335#define EnableRX(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_H_0,3,val)
336#define EnableDMA(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_H_0,2,val)
337#define SIRRecvAny(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_H_0,1,val)
338#define DiableTrans(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_H_0,0,val)
339//***************************I_SIR_BOF,I_SIR_EOF
340#define SetSIRBOF(BaseAddr,val) WriteReg(BaseAddr,I_SIR_BOF,val)
341#define SetSIREOF(BaseAddr,val) WriteReg(BaseAddr,I_SIR_EOF,val)
342#define GetSIRBOF(BaseAddr) ReadReg(BaseAddr,I_SIR_BOF)
343#define GetSIREOF(BaseAddr) ReadReg(BaseAddr,I_SIR_EOF)
344//*******************I_ST_CT_0
345#define EnPhys(BaseAddr,val) WriteRegBit(BaseAddr,I_ST_CT_0,7,val)
346#define IsModeError(BaseAddr) CheckRegBit(BaseAddr,I_ST_CT_0,6) //RO
347#define IsVFIROn(BaseAddr) CheckRegBit(BaseAddr,0x14,0) //RO for VT1211 only
348#define IsFIROn(BaseAddr) CheckRegBit(BaseAddr,I_ST_CT_0,5) //RO
349#define IsMIROn(BaseAddr) CheckRegBit(BaseAddr,I_ST_CT_0,4) //RO
350#define IsSIROn(BaseAddr) CheckRegBit(BaseAddr,I_ST_CT_0,3) //RO
351#define IsEnableTX(BaseAddr) CheckRegBit(BaseAddr,I_ST_CT_0,2) //RO
352#define IsEnableRX(BaseAddr) CheckRegBit(BaseAddr,I_ST_CT_0,1) //RO
353#define Is16CRC(BaseAddr) CheckRegBit(BaseAddr,I_ST_CT_0,0) //RO
354//***************************I_CF_3
355#define DisableAdjacentPulseWidth(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_3,5,val) //1 disable
356#define DisablePulseWidthAdjust(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_3,4,val) //1 disable
357#define UseOneRX(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_3,1,val) //0 use two RX
358#define SlowIRRXLowActive(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_3,0,val) //0 show RX high=1 in SIR
359//***************************H_CT
360#define EnAllInt(BaseAddr,val) WriteRegBit(BaseAddr,H_CT,7,val)
361#define TXStart(BaseAddr,val) WriteRegBit(BaseAddr,H_CT,6,val)
362#define RXStart(BaseAddr,val) WriteRegBit(BaseAddr,H_CT,5,val)
363#define ClearRXInt(BaseAddr,val) WriteRegBit(BaseAddr,H_CT,4,val) // 1 clear
364//*****************H_ST
365#define IsRXInt(BaseAddr) CheckRegBit(BaseAddr,H_ST,4)
366#define GetIntIndentify(BaseAddr) ((ReadReg(BaseAddr,H_ST)&0xf1) >>1)
367#define IsHostBusy(BaseAddr) CheckRegBit(BaseAddr,H_ST,0)
368#define GetHostStatus(BaseAddr) ReadReg(BaseAddr,H_ST) //RO
369//**************************M_CT
370#define EnTXDMA(BaseAddr,val) WriteRegBit(BaseAddr,M_CT,7,val)
371#define EnRXDMA(BaseAddr,val) WriteRegBit(BaseAddr,M_CT,6,val)
372#define SwapDMA(BaseAddr,val) WriteRegBit(BaseAddr,M_CT,5,val)
373#define EnInternalLoop(BaseAddr,val) WriteRegBit(BaseAddr,M_CT,4,val)
374#define EnExternalLoop(BaseAddr,val) WriteRegBit(BaseAddr,M_CT,3,val)
375//**************************TX_CT_1
376#define EnTXFIFOHalfLevelInt(BaseAddr,val) WriteRegBit(BaseAddr,TX_CT_1,4,val) //half empty int (1 half)
377#define EnTXFIFOUnderrunEOMInt(BaseAddr,val) WriteRegBit(BaseAddr,TX_CT_1,5,val)
378#define EnTXFIFOReadyInt(BaseAddr,val) WriteRegBit(BaseAddr,TX_CT_1,6,val) //int when reach it threshold (setting by bit 4)
379//**************************TX_CT_2
380#define ForceUnderrun(BaseAddr,val) WriteRegBit(BaseAddr,TX_CT_2,7,val) // force an underrun int
381#define EnTXCRC(BaseAddr,val) WriteRegBit(BaseAddr,TX_CT_2,6,val) //1 for FIR,MIR...0 (not SIR)
382#define ForceBADCRC(BaseAddr,val) WriteRegBit(BaseAddr,TX_CT_2,5,val) //force an bad CRC
383#define SendSIP(BaseAddr,val) WriteRegBit(BaseAddr,TX_CT_2,4,val) //send indication pulse for prevent SIR disturb
384#define ClearEnTX(BaseAddr,val) WriteRegBit(BaseAddr,TX_CT_2,3,val) // opposite to EnTX
385//*****************TX_ST
386#define GetTXStatus(BaseAddr) ReadReg(BaseAddr,TX_ST) //RO
387//**************************RX_CT
388#define EnRXSpecInt(BaseAddr,val) WriteRegBit(BaseAddr,RX_CT,0,val)
389#define EnRXFIFOReadyInt(BaseAddr,val) WriteRegBit(BaseAddr,RX_CT,1,val) //enable int when reach it threshold (setting by bit 7)
390#define EnRXFIFOHalfLevelInt(BaseAddr,val) WriteRegBit(BaseAddr,RX_CT,7,val) //enable int when (1) half full...or (0) just not full
391//*****************RX_ST
392#define GetRXStatus(BaseAddr) ReadReg(BaseAddr,RX_ST) //RO
393//***********************P_ADDR
394#define SetPacketAddr(BaseAddr,addr) WriteReg(BaseAddr,P_ADDR,addr)
395//***********************I_CF_4
396#define EnGPIOtoRX2(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_4,7,val)
397#define EnTimerInt(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_4,1,val)
398#define ClearTimerInt(BaseAddr,val) WriteRegBit(BaseAddr,I_CF_4,0,val)
399//***********************I_T_C_L
400#define WriteGIO(BaseAddr,val) WriteRegBit(BaseAddr,I_T_C_L,7,val)
401#define ReadGIO(BaseAddr) CheckRegBit(BaseAddr,I_T_C_L,7)
402#define ReadRX(BaseAddr) CheckRegBit(BaseAddr,I_T_C_L,3) //RO
403#define WriteTX(BaseAddr,val) WriteRegBit(BaseAddr,I_T_C_L,0,val)
404//***********************I_T_C_H
405#define EnRX2(BaseAddr,val) WriteRegBit(BaseAddr,I_T_C_H,7,val)
406#define ReadRX2(BaseAddr) CheckRegBit(BaseAddr,I_T_C_H,7)
407//**********************Version
408#define GetFIRVersion(BaseAddr) ReadReg(BaseAddr,VERSION)
409
410
411static void SetTimer(__u16 iobase, __u8 count)
412{
413 EnTimerInt(iobase, OFF);
414 WriteReg(iobase, TIMER, count);
415 EnTimerInt(iobase, ON);
416}
417
418
419static void SetSendByte(__u16 iobase, __u32 count)
420{
421 __u32 low, high;
422
423 if ((count & 0xf000) == 0) {
424 low = count & 0x00ff;
425 high = (count & 0x0f00) >> 8;
426 WriteReg(iobase, TX_C_L, low);
427 WriteReg(iobase, TX_C_H, high);
428 }
429}
430
431static void ResetChip(__u16 iobase, __u8 type)
432{
433 __u8 value;
434
435 value = (type + 2) << 4;
436 WriteReg(iobase, RESET, type);
437}
438
439static int CkRxRecv(__u16 iobase, struct via_ircc_cb *self)
440{
441 __u8 low, high;
442 __u16 wTmp = 0, wTmp1 = 0, wTmp_new = 0;
443
444 low = ReadReg(iobase, RX_C_L);
445 high = ReadReg(iobase, RX_C_H);
446 wTmp1 = high;
447 wTmp = (wTmp1 << 8) | low;
448 udelay(10);
449 low = ReadReg(iobase, RX_C_L);
450 high = ReadReg(iobase, RX_C_H);
451 wTmp1 = high;
452 wTmp_new = (wTmp1 << 8) | low;
453 if (wTmp_new != wTmp)
454 return 1;
455 else
456 return 0;
457
458}
459
460static __u16 RxCurCount(__u16 iobase, struct via_ircc_cb * self)
461{
462 __u8 low, high;
463 __u16 wTmp = 0, wTmp1 = 0;
464
465 low = ReadReg(iobase, RX_P_L);
466 high = ReadReg(iobase, RX_P_H);
467 wTmp1 = high;
468 wTmp = (wTmp1 << 8) | low;
469 return wTmp;
470}
471
472/* This Routine can only use in recevie_complete
473 * for it will update last count.
474 */
475
476static __u16 GetRecvByte(__u16 iobase, struct via_ircc_cb * self)
477{
478 __u8 low, high;
479 __u16 wTmp, wTmp1, ret;
480
481 low = ReadReg(iobase, RX_P_L);
482 high = ReadReg(iobase, RX_P_H);
483 wTmp1 = high;
484 wTmp = (wTmp1 << 8) | low;
485
486
487 if (wTmp >= self->RxLastCount)
488 ret = wTmp - self->RxLastCount;
489 else
490 ret = (0x8000 - self->RxLastCount) + wTmp;
491 self->RxLastCount = wTmp;
492
493/* RX_P is more actually the RX_C
494 low=ReadReg(iobase,RX_C_L);
495 high=ReadReg(iobase,RX_C_H);
496
497 if(!(high&0xe000)) {
498 temp=(high<<8)+low;
499 return temp;
500 }
501 else return 0;
502*/
503 return ret;
504}
505
506static void Sdelay(__u16 scale)
507{
508 __u8 bTmp;
509 int i, j;
510
511 for (j = 0; j < scale; j++) {
512 for (i = 0; i < 0x20; i++) {
513 bTmp = inb(0xeb);
514 outb(bTmp, 0xeb);
515 }
516 }
517}
518
519static void Tdelay(__u16 scale)
520{
521 __u8 bTmp;
522 int i, j;
523
524 for (j = 0; j < scale; j++) {
525 for (i = 0; i < 0x50; i++) {
526 bTmp = inb(0xeb);
527 outb(bTmp, 0xeb);
528 }
529 }
530}
531
532
533static void ActClk(__u16 iobase, __u8 value)
534{
535 __u8 bTmp;
536 bTmp = ReadReg(iobase, 0x34);
537 if (value)
538 WriteReg(iobase, 0x34, bTmp | Clk_bit);
539 else
540 WriteReg(iobase, 0x34, bTmp & ~Clk_bit);
541}
542
543static void ClkTx(__u16 iobase, __u8 Clk, __u8 Tx)
544{
545 __u8 bTmp;
546
547 bTmp = ReadReg(iobase, 0x34);
548 if (Clk == 0)
549 bTmp &= ~Clk_bit;
550 else {
551 if (Clk == 1)
552 bTmp |= Clk_bit;
553 }
554 WriteReg(iobase, 0x34, bTmp);
555 Sdelay(1);
556 if (Tx == 0)
557 bTmp &= ~Tx_bit;
558 else {
559 if (Tx == 1)
560 bTmp |= Tx_bit;
561 }
562 WriteReg(iobase, 0x34, bTmp);
563}
564
565static void Wr_Byte(__u16 iobase, __u8 data)
566{
567 __u8 bData = data;
568// __u8 btmp;
569 int i;
570
571 ClkTx(iobase, 0, 1);
572
573 Tdelay(2);
574 ActClk(iobase, 1);
575 Tdelay(1);
576
577 for (i = 0; i < 8; i++) { //LDN
578
579 if ((bData >> i) & 0x01) {
580 ClkTx(iobase, 0, 1); //bit data = 1;
581 } else {
582 ClkTx(iobase, 0, 0); //bit data = 1;
583 }
584 Tdelay(2);
585 Sdelay(1);
586 ActClk(iobase, 1); //clk hi
587 Tdelay(1);
588 }
589}
590
591static __u8 Rd_Indx(__u16 iobase, __u8 addr, __u8 index)
592{
593 __u8 data = 0, bTmp, data_bit;
594 int i;
595
596 bTmp = addr | (index << 1) | 0;
597 ClkTx(iobase, 0, 0);
598 Tdelay(2);
599 ActClk(iobase, 1);
600 udelay(1);
601 Wr_Byte(iobase, bTmp);
602 Sdelay(1);
603 ClkTx(iobase, 0, 0);
604 Tdelay(2);
605 for (i = 0; i < 10; i++) {
606 ActClk(iobase, 1);
607 Tdelay(1);
608 ActClk(iobase, 0);
609 Tdelay(1);
610 ClkTx(iobase, 0, 1);
611 Tdelay(1);
612 bTmp = ReadReg(iobase, 0x34);
613 if (!(bTmp & Rd_Valid))
614 break;
615 }
616 if (!(bTmp & Rd_Valid)) {
617 for (i = 0; i < 8; i++) {
618 ActClk(iobase, 1);
619 Tdelay(1);
620 ActClk(iobase, 0);
621 bTmp = ReadReg(iobase, 0x34);
622 data_bit = 1 << i;
623 if (bTmp & RxBit)
624 data |= data_bit;
625 else
626 data &= ~data_bit;
627 Tdelay(2);
628 }
629 } else {
630 for (i = 0; i < 2; i++) {
631 ActClk(iobase, 1);
632 Tdelay(1);
633 ActClk(iobase, 0);
634 Tdelay(2);
635 }
636 bTmp = ReadReg(iobase, 0x34);
637 }
638 for (i = 0; i < 1; i++) {
639 ActClk(iobase, 1);
640 Tdelay(1);
641 ActClk(iobase, 0);
642 Tdelay(2);
643 }
644 ClkTx(iobase, 0, 0);
645 Tdelay(1);
646 for (i = 0; i < 3; i++) {
647 ActClk(iobase, 1);
648 Tdelay(1);
649 ActClk(iobase, 0);
650 Tdelay(2);
651 }
652 return data;
653}
654
655static void Wr_Indx(__u16 iobase, __u8 addr, __u8 index, __u8 data)
656{
657 int i;
658 __u8 bTmp;
659
660 ClkTx(iobase, 0, 0);
661 udelay(2);
662 ActClk(iobase, 1);
663 udelay(1);
664 bTmp = addr | (index << 1) | 1;
665 Wr_Byte(iobase, bTmp);
666 Wr_Byte(iobase, data);
667 for (i = 0; i < 2; i++) {
668 ClkTx(iobase, 0, 0);
669 Tdelay(2);
670 ActClk(iobase, 1);
671 Tdelay(1);
672 }
673 ActClk(iobase, 0);
674}
675
676static void ResetDongle(__u16 iobase)
677{
678 int i;
679 ClkTx(iobase, 0, 0);
680 Tdelay(1);
681 for (i = 0; i < 30; i++) {
682 ActClk(iobase, 1);
683 Tdelay(1);
684 ActClk(iobase, 0);
685 Tdelay(1);
686 }
687 ActClk(iobase, 0);
688}
689
690static void SetSITmode(__u16 iobase)
691{
692
693 __u8 bTmp;
694
695 bTmp = ReadLPCReg(0x28);
696 WriteLPCReg(0x28, bTmp | 0x10); //select ITMOFF
697 bTmp = ReadReg(iobase, 0x35);
698 WriteReg(iobase, 0x35, bTmp | 0x40); // Driver ITMOFF
699 WriteReg(iobase, 0x28, bTmp | 0x80); // enable All interrupt
700}
701
702static void SI_SetMode(__u16 iobase, int mode)
703{
704 //__u32 dTmp;
705 __u8 bTmp;
706
707 WriteLPCReg(0x28, 0x70); // S/W Reset
708 SetSITmode(iobase);
709 ResetDongle(iobase);
710 udelay(10);
711 Wr_Indx(iobase, 0x40, 0x0, 0x17); //RX ,APEN enable,Normal power
712 Wr_Indx(iobase, 0x40, 0x1, mode); //Set Mode
713 Wr_Indx(iobase, 0x40, 0x2, 0xff); //Set power to FIR VFIR > 1m
714 bTmp = Rd_Indx(iobase, 0x40, 1);
715}
716
717static void InitCard(__u16 iobase)
718{
719 ResetChip(iobase, 5);
720 WriteReg(iobase, I_ST_CT_0, 0x00); // open CHIP on
721 SetSIRBOF(iobase, 0xc0); // hardware default value
722 SetSIREOF(iobase, 0xc1);
723}
724
725static void CommonInit(__u16 iobase)
726{
727// EnTXCRC(iobase,0);
728 SwapDMA(iobase, OFF);
729 SetMaxRxPacketSize(iobase, 0x0fff); //set to max:4095
730 EnRXFIFOReadyInt(iobase, OFF);
731 EnRXFIFOHalfLevelInt(iobase, OFF);
732 EnTXFIFOHalfLevelInt(iobase, OFF);
733 EnTXFIFOUnderrunEOMInt(iobase, ON);
734// EnTXFIFOReadyInt(iobase,ON);
735 InvertTX(iobase, OFF);
736 InvertRX(iobase, OFF);
737// WriteLPCReg(0xF0,0); //(if VT1211 then do this)
738 if (IsSIROn(iobase)) {
739 SIRFilter(iobase, ON);
740 SIRRecvAny(iobase, ON);
741 } else {
742 SIRFilter(iobase, OFF);
743 SIRRecvAny(iobase, OFF);
744 }
745 EnRXSpecInt(iobase, ON);
746 WriteReg(iobase, I_ST_CT_0, 0x80);
747 EnableDMA(iobase, ON);
748}
749
750static void SetBaudRate(__u16 iobase, __u32 rate)
751{
752 __u8 value = 11, temp;
753
754 if (IsSIROn(iobase)) {
755 switch (rate) {
756 case (__u32) (2400L):
757 value = 47;
758 break;
759 case (__u32) (9600L):
760 value = 11;
761 break;
762 case (__u32) (19200L):
763 value = 5;
764 break;
765 case (__u32) (38400L):
766 value = 2;
767 break;
768 case (__u32) (57600L):
769 value = 1;
770 break;
771 case (__u32) (115200L):
772 value = 0;
773 break;
774 default:
775 break;
776 }
777 } else if (IsMIROn(iobase)) {
778 value = 0; // will automatically be fixed in 1.152M
779 } else if (IsFIROn(iobase)) {
780 value = 0; // will automatically be fixed in 4M
781 }
782 temp = (ReadReg(iobase, I_CF_H_1) & 0x03);
783 temp |= value << 2;
784 WriteReg(iobase, I_CF_H_1, temp);
785}
786
787static void SetPulseWidth(__u16 iobase, __u8 width)
788{
789 __u8 temp, temp1, temp2;
790
791 temp = (ReadReg(iobase, I_CF_L_1) & 0x1f);
792 temp1 = (ReadReg(iobase, I_CF_H_1) & 0xfc);
793 temp2 = (width & 0x07) << 5;
794 temp |= temp2;
795 temp2 = (width & 0x18) >> 3;
796 temp1 |= temp2;
797 WriteReg(iobase, I_CF_L_1, temp);
798 WriteReg(iobase, I_CF_H_1, temp1);
799}
800
801static void SetSendPreambleCount(__u16 iobase, __u8 count)
802{
803 __u8 temp;
804
805 temp = ReadReg(iobase, I_CF_L_1) & 0xe0;
806 temp |= count;
807 WriteReg(iobase, I_CF_L_1, temp);
808
809}
810
811static void SetVFIR(__u16 BaseAddr, __u8 val)
812{
813 __u8 tmp;
814
815 tmp = ReadReg(BaseAddr, I_CF_L_0);
816 WriteReg(BaseAddr, I_CF_L_0, tmp & 0x8f);
817 WriteRegBit(BaseAddr, I_CF_H_0, 5, val);
818}
819
820static void SetFIR(__u16 BaseAddr, __u8 val)
821{
822 __u8 tmp;
823
824 WriteRegBit(BaseAddr, I_CF_H_0, 5, 0);
825 tmp = ReadReg(BaseAddr, I_CF_L_0);
826 WriteReg(BaseAddr, I_CF_L_0, tmp & 0x8f);
827 WriteRegBit(BaseAddr, I_CF_L_0, 6, val);
828}
829
830static void SetMIR(__u16 BaseAddr, __u8 val)
831{
832 __u8 tmp;
833
834 WriteRegBit(BaseAddr, I_CF_H_0, 5, 0);
835 tmp = ReadReg(BaseAddr, I_CF_L_0);
836 WriteReg(BaseAddr, I_CF_L_0, tmp & 0x8f);
837 WriteRegBit(BaseAddr, I_CF_L_0, 5, val);
838}
839
840static void SetSIR(__u16 BaseAddr, __u8 val)
841{
842 __u8 tmp;
843
844 WriteRegBit(BaseAddr, I_CF_H_0, 5, 0);
845 tmp = ReadReg(BaseAddr, I_CF_L_0);
846 WriteReg(BaseAddr, I_CF_L_0, tmp & 0x8f);
847 WriteRegBit(BaseAddr, I_CF_L_0, 4, val);
848}
849
850#endif /* via_IRCC_H */