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1/*******************************************************************
2 *
3 * Copyright (c) 2000 ATecoM GmbH
4 *
5 * The author may be reached at ecd@atecom.com.
6 *
7 * This program is free software; you can redistribute  it and/or modify it
8 * under  the terms of  the GNU General  Public License as published by the
9 * Free Software Foundation;  either version 2 of the  License, or (at your
10 * option) any later version.
11 *
12 * THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR   IMPLIED
13 * WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
15 * NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT,  INDIRECT,
16 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
17 * NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
18 * USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
19 * ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
20 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
21 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
22 *
23 * You should have received a copy of the  GNU General Public License along
24 * with this program; if not, write  to the Free Software Foundation, Inc.,
25 * 675 Mass Ave, Cambridge, MA 02139, USA.
26 *
27 *******************************************************************/
28
29#ifndef _IDT77252_H
30#define _IDT77252_H 1
31
32
33#include <linux/ptrace.h>
34#include <linux/skbuff.h>
35#include <linux/workqueue.h>
36#include <linux/mutex.h>
37
38/*****************************************************************************/
39/*                                                                           */
40/* Makros                                                                    */
41/*                                                                           */
42/*****************************************************************************/
43#define VPCI2VC(card, vpi, vci) \
44        (((vpi) << card->vcibits) | ((vci) & card->vcimask))
45
46/*****************************************************************************/
47/*                                                                           */
48/*   DEBUGGING definitions                                                   */
49/*                                                                           */
50/*****************************************************************************/
51
52#define DBG_RAW_CELL	0x00000400
53#define DBG_TINY	0x00000200
54#define DBG_GENERAL     0x00000100
55#define DBG_XGENERAL    0x00000080
56#define DBG_INIT        0x00000040
57#define DBG_DEINIT      0x00000020
58#define DBG_INTERRUPT   0x00000010
59#define DBG_OPEN_CONN   0x00000008
60#define DBG_CLOSE_CONN  0x00000004
61#define DBG_RX_DATA     0x00000002
62#define DBG_TX_DATA     0x00000001
63
64#ifdef CONFIG_ATM_IDT77252_DEBUG
65
66#define CPRINTK(args...)   do { if (debug & DBG_CLOSE_CONN) printk(args); } while(0)
67#define OPRINTK(args...)   do { if (debug & DBG_OPEN_CONN)  printk(args); } while(0)
68#define IPRINTK(args...)   do { if (debug & DBG_INIT)       printk(args); } while(0)
69#define INTPRINTK(args...) do { if (debug & DBG_INTERRUPT)  printk(args); } while(0)
70#define DIPRINTK(args...)  do { if (debug & DBG_DEINIT)     printk(args); } while(0)
71#define TXPRINTK(args...)  do { if (debug & DBG_TX_DATA)    printk(args); } while(0)
72#define RXPRINTK(args...)  do { if (debug & DBG_RX_DATA)    printk(args); } while(0)
73#define XPRINTK(args...)   do { if (debug & DBG_XGENERAL)   printk(args); } while(0)
74#define DPRINTK(args...)   do { if (debug & DBG_GENERAL)    printk(args); } while(0)
75#define NPRINTK(args...)   do { if (debug & DBG_TINY)	    printk(args); } while(0)
76#define RPRINTK(args...)   do { if (debug & DBG_RAW_CELL)   printk(args); } while(0)
77
78#else
79
80#define CPRINTK(args...)	do { } while(0)
81#define OPRINTK(args...)	do { } while(0)
82#define IPRINTK(args...)	do { } while(0)
83#define INTPRINTK(args...)	do { } while(0)
84#define DIPRINTK(args...)	do { } while(0)
85#define TXPRINTK(args...)	do { } while(0)
86#define RXPRINTK(args...)	do { } while(0)
87#define XPRINTK(args...)	do { } while(0)
88#define DPRINTK(args...)	do { } while(0)
89#define NPRINTK(args...)	do { } while(0)
90#define RPRINTK(args...)	do { } while(0)
91
92#endif
93
94#define SCHED_UBR0		0
95#define SCHED_UBR		1
96#define SCHED_VBR		2
97#define SCHED_ABR		3
98#define SCHED_CBR		4
99
100#define SCQFULL_TIMEOUT		HZ
101
102/*****************************************************************************/
103/*                                                                           */
104/*   Free Buffer Queue Layout                                                */
105/*                                                                           */
106/*****************************************************************************/
107#define SAR_FB_SIZE_0		(2048 - 256)
108#define SAR_FB_SIZE_1		(4096 - 256)
109#define SAR_FB_SIZE_2		(8192 - 256)
110#define SAR_FB_SIZE_3		(16384 - 256)
111
112#define SAR_FBQ0_LOW		4
113#define SAR_FBQ0_HIGH		8
114#define SAR_FBQ1_LOW		2
115#define SAR_FBQ1_HIGH		4
116#define SAR_FBQ2_LOW		1
117#define SAR_FBQ2_HIGH		2
118#define SAR_FBQ3_LOW		1
119#define SAR_FBQ3_HIGH		2
120
121#define SAR_TST_RESERVED	0	/* Num TST reserved for UBR/ABR/VBR */
122
123#define TCT_CBR			0x00000000
124#define TCT_UBR			0x00000000
125#define TCT_VBR			0x40000000
126#define TCT_ABR			0x80000000
127#define TCT_TYPE		0xc0000000
128
129#define TCT_RR			0x20000000
130#define TCT_LMCR		0x08000000
131#define TCT_SCD_MASK		0x0007ffff
132
133#define TCT_TSIF		0x00004000
134#define TCT_HALT		0x80000000
135#define TCT_IDLE		0x40000000
136#define TCT_FLAG_UBR		0x80000000
137
138/*****************************************************************************/
139/*                                                                           */
140/*   Structure describing an IDT77252                                        */
141/*                                                                           */
142/*****************************************************************************/
143
144struct scqe
145{
146	u32		word_1;
147	u32		word_2;
148	u32		word_3;
149	u32		word_4;
150};
151
152#define SCQ_ENTRIES	64
153#define SCQ_SIZE	(SCQ_ENTRIES * sizeof(struct scqe))
154#define SCQ_MASK	(SCQ_SIZE - 1)
155
156struct scq_info
157{
158	struct scqe		*base;
159	struct scqe		*next;
160	struct scqe		*last;
161	dma_addr_t		paddr;
162	spinlock_t		lock;
163	atomic_t		used;
164	unsigned long		trans_start;
165        unsigned long		scd;
166	spinlock_t		skblock;
167	struct sk_buff_head	transmit;
168	struct sk_buff_head	pending;
169};
170
171struct rx_pool {
172	struct sk_buff_head	queue;
173	unsigned int		len;
174};
175
176struct aal1 {
177	unsigned int		total;
178	unsigned int		count;
179	struct sk_buff		*data;
180	unsigned char		sequence;
181};
182
183struct rate_estimator {
184	struct timer_list	timer;
185	unsigned int		interval;
186	unsigned int		ewma_log;
187	u64			cells;
188	u64			last_cells;
189	long			avcps;
190	u32			cps;
191	u32			maxcps;
192};
193
194struct vc_map {
195	unsigned int		index;
196	unsigned long		flags;
197#define VCF_TX		0
198#define VCF_RX		1
199#define VCF_IDLE	2
200#define VCF_RSV		3
201	unsigned int		class;
202	u8			init_er;
203	u8			lacr;
204	u8			max_er;
205	unsigned int		ntste;
206	spinlock_t		lock;
207	struct atm_vcc		*tx_vcc;
208	struct atm_vcc		*rx_vcc;
209	struct idt77252_dev	*card;
210	struct scq_info		*scq;		/* To keep track of the SCQ */
211	struct rate_estimator	*estimator;
212	int			scd_index;
213	union {
214		struct rx_pool	rx_pool;
215		struct aal1	aal1;
216	} rcv;
217};
218
219/*****************************************************************************/
220/*                                                                           */
221/*   RCTE - Receive Connection Table Entry                                   */
222/*                                                                           */
223/*****************************************************************************/
224
225struct rct_entry
226{
227	u32		word_1;
228	u32		buffer_handle;
229	u32		dma_address;
230	u32		aal5_crc32;
231};
232
233/*****************************************************************************/
234/*                                                                           */
235/*   RSQ - Receive Status Queue                                              */
236/*                                                                           */
237/*****************************************************************************/
238
239#define SAR_RSQE_VALID      0x80000000
240#define SAR_RSQE_IDLE       0x40000000
241#define SAR_RSQE_BUF_MASK   0x00030000
242#define SAR_RSQE_BUF_ASGN   0x00008000
243#define SAR_RSQE_NZGFC      0x00004000
244#define SAR_RSQE_EPDU       0x00002000
245#define SAR_RSQE_BUF_CONT   0x00001000
246#define SAR_RSQE_EFCIE      0x00000800
247#define SAR_RSQE_CLP        0x00000400
248#define SAR_RSQE_CRC        0x00000200
249#define SAR_RSQE_CELLCNT    0x000001FF
250
251
252#define RSQSIZE            8192
253#define RSQ_NUM_ENTRIES    (RSQSIZE / 16)
254#define RSQ_ALIGNMENT      8192
255
256struct rsq_entry {
257	u32			word_1;
258	u32			word_2;
259	u32			word_3;
260	u32			word_4;
261};
262
263struct rsq_info {
264	struct rsq_entry	*base;
265	struct rsq_entry	*next;
266	struct rsq_entry	*last;
267	dma_addr_t		paddr;
268};
269
270
271/*****************************************************************************/
272/*                                                                           */
273/*   TSQ - Transmit Status Queue                                             */
274/*                                                                           */
275/*****************************************************************************/
276
277#define SAR_TSQE_INVALID         0x80000000
278#define SAR_TSQE_TIMESTAMP       0x00FFFFFF
279#define SAR_TSQE_TYPE		 0x60000000
280#define SAR_TSQE_TYPE_TIMER      0x00000000
281#define SAR_TSQE_TYPE_TSR        0x20000000
282#define SAR_TSQE_TYPE_IDLE       0x40000000
283#define SAR_TSQE_TYPE_TBD_COMP   0x60000000
284
285#define SAR_TSQE_TAG(stat)	(((stat) >> 24) & 0x1f)
286
287#define TSQSIZE            8192
288#define TSQ_NUM_ENTRIES    1024
289#define TSQ_ALIGNMENT      8192
290
291struct tsq_entry
292{
293	u32			word_1;
294	u32			word_2;
295};
296
297struct tsq_info
298{
299	struct tsq_entry	*base;
300	struct tsq_entry	*next;
301	struct tsq_entry	*last;
302	dma_addr_t		paddr;
303};
304
305struct tst_info
306{
307	struct vc_map		*vc;
308	u32			tste;
309};
310
311#define TSTE_MASK		0x601fffff
312
313#define TSTE_OPC_MASK		0x60000000
314#define TSTE_OPC_NULL		0x00000000
315#define TSTE_OPC_CBR		0x20000000
316#define TSTE_OPC_VAR		0x40000000
317#define TSTE_OPC_JMP		0x60000000
318
319#define TSTE_PUSH_IDLE		0x01000000
320#define TSTE_PUSH_ACTIVE	0x02000000
321
322#define TST_SWITCH_DONE		0
323#define TST_SWITCH_PENDING	1
324#define TST_SWITCH_WAIT		2
325
326#define FBQ_SHIFT		9
327#define FBQ_SIZE		(1 << FBQ_SHIFT)
328#define FBQ_MASK		(FBQ_SIZE - 1)
329
330struct sb_pool
331{
332	unsigned int		index;
333	struct sk_buff		*skb[FBQ_SIZE];
334};
335
336#define POOL_HANDLE(queue, index)	(((queue + 1) << 16) | (index))
337#define POOL_QUEUE(handle)		(((handle) >> 16) - 1)
338#define POOL_INDEX(handle)		((handle) & 0xffff)
339
340struct idt77252_dev
341{
342        struct tsq_info		tsq;		/* Transmit Status Queue */
343        struct rsq_info		rsq;		/* Receive Status Queue */
344
345	struct pci_dev		*pcidev;	/* PCI handle (desriptor) */
346	struct atm_dev		*atmdev;	/* ATM device desriptor */
347
348	void __iomem		*membase;	/* SAR's memory base address */
349	unsigned long		srambase;	/* SAR's sram  base address */
350	void __iomem		*fbq[4];	/* FBQ fill addresses */
351
352	struct mutex		mutex;
353	spinlock_t		cmd_lock;	/* for r/w utility/sram */
354
355	unsigned long		softstat;
356	unsigned long		flags;		/* see blow */
357
358	struct work_struct	tqueue;
359
360	unsigned long		tct_base;	/* TCT base address in SRAM */
361        unsigned long		rct_base;	/* RCT base address in SRAM */
362        unsigned long		rt_base;	/* Rate Table base in SRAM */
363        unsigned long		scd_base;	/* SCD base address in SRAM */
364        unsigned long		tst[2];		/* TST base address in SRAM */
365	unsigned long		abrst_base;	/* ABRST base address in SRAM */
366        unsigned long		fifo_base;	/* RX FIFO base in SRAM */
367
368	unsigned long		irqstat[16];
369
370	unsigned int		sramsize;	/* SAR's sram size */
371
372        unsigned int		tct_size;	/* total TCT entries */
373        unsigned int		rct_size;	/* total RCT entries */
374        unsigned int		scd_size;	/* length of SCD */
375        unsigned int		tst_size;	/* total TST entries */
376        unsigned int		tst_free;	/* free TSTEs in TST */
377        unsigned int		abrst_size;	/* size of ABRST in words */
378        unsigned int		fifo_size;	/* size of RX FIFO in words */
379
380        unsigned int		vpibits;	/* Bits used for VPI index */
381        unsigned int		vcibits;	/* Bits used for VCI index */
382        unsigned int		vcimask;	/* Mask for VCI index */
383
384	unsigned int		utopia_pcr;	/* Utopia Itf's Cell Rate */
385	unsigned int		link_pcr;	/* PHY's Peek Cell Rate */
386
387	struct vc_map		**vcs;		/* Open Connections */
388	struct vc_map		**scd2vc;	/* SCD to Connection map */
389
390	struct tst_info		*soft_tst;	/* TST to Connection map */
391	unsigned int		tst_index;	/* Current TST in use */
392	struct timer_list	tst_timer;
393	spinlock_t		tst_lock;
394	unsigned long		tst_state;
395
396	struct sb_pool		sbpool[4];	/* Pool of RX skbuffs */
397	struct sk_buff		*raw_cell_head; /* Pointer to raw cell queue */
398	u32			*raw_cell_hnd;	/* Pointer to RCQ handle */
399	dma_addr_t		raw_cell_paddr;
400
401	int			index;		/* SAR's ID */
402	int			revision;	/* chip revision */
403
404	char			name[16];	/* Device name */
405
406	struct idt77252_dev	*next;
407};
408
409
410/* definition for flag field above */
411#define IDT77252_BIT_INIT		1
412#define IDT77252_BIT_INTERRUPT		2
413
414
415#define ATM_CELL_PAYLOAD         48
416
417#define FREEBUF_ALIGNMENT        16
418
419/*****************************************************************************/
420/*                                                                           */
421/* Makros                                                                    */
422/*                                                                           */
423/*****************************************************************************/
424#define ALIGN_ADDRESS(addr, alignment) \
425        ((((u32)(addr)) + (((u32)(alignment))-1)) & ~(((u32)(alignment)) - 1))
426
427
428/*****************************************************************************/
429/*                                                                           */
430/*   ABR SAR Network operation Register                                      */
431/*                                                                           */
432/*****************************************************************************/
433
434#define SAR_REG_DR0	(card->membase + 0x00)
435#define SAR_REG_DR1	(card->membase + 0x04)
436#define SAR_REG_DR2	(card->membase + 0x08)
437#define SAR_REG_DR3	(card->membase + 0x0C)
438#define SAR_REG_CMD	(card->membase + 0x10)
439#define SAR_REG_CFG	(card->membase + 0x14)
440#define SAR_REG_STAT	(card->membase + 0x18)
441#define SAR_REG_RSQB	(card->membase + 0x1C)
442#define SAR_REG_RSQT	(card->membase + 0x20)
443#define SAR_REG_RSQH	(card->membase + 0x24)
444#define SAR_REG_CDC	(card->membase + 0x28)
445#define SAR_REG_VPEC	(card->membase + 0x2C)
446#define SAR_REG_ICC	(card->membase + 0x30)
447#define SAR_REG_RAWCT	(card->membase + 0x34)
448#define SAR_REG_TMR	(card->membase + 0x38)
449#define SAR_REG_TSTB	(card->membase + 0x3C)
450#define SAR_REG_TSQB	(card->membase + 0x40)
451#define SAR_REG_TSQT	(card->membase + 0x44)
452#define SAR_REG_TSQH	(card->membase + 0x48)
453#define SAR_REG_GP	(card->membase + 0x4C)
454#define SAR_REG_VPM	(card->membase + 0x50)
455#define SAR_REG_RXFD	(card->membase + 0x54)
456#define SAR_REG_RXFT	(card->membase + 0x58)
457#define SAR_REG_RXFH	(card->membase + 0x5C)
458#define SAR_REG_RAWHND	(card->membase + 0x60)
459#define SAR_REG_RXSTAT	(card->membase + 0x64)
460#define SAR_REG_ABRSTD	(card->membase + 0x68)
461#define SAR_REG_ABRRQ	(card->membase + 0x6C)
462#define SAR_REG_VBRRQ	(card->membase + 0x70)
463#define SAR_REG_RTBL	(card->membase + 0x74)
464#define SAR_REG_MDFCT	(card->membase + 0x78)
465#define SAR_REG_TXSTAT	(card->membase + 0x7C)
466#define SAR_REG_TCMDQ	(card->membase + 0x80)
467#define SAR_REG_IRCP	(card->membase + 0x84)
468#define SAR_REG_FBQP0	(card->membase + 0x88)
469#define SAR_REG_FBQP1	(card->membase + 0x8C)
470#define SAR_REG_FBQP2	(card->membase + 0x90)
471#define SAR_REG_FBQP3	(card->membase + 0x94)
472#define SAR_REG_FBQS0	(card->membase + 0x98)
473#define SAR_REG_FBQS1	(card->membase + 0x9C)
474#define SAR_REG_FBQS2	(card->membase + 0xA0)
475#define SAR_REG_FBQS3	(card->membase + 0xA4)
476#define SAR_REG_FBQWP0	(card->membase + 0xA8)
477#define SAR_REG_FBQWP1	(card->membase + 0xAC)
478#define SAR_REG_FBQWP2	(card->membase + 0xB0)
479#define SAR_REG_FBQWP3	(card->membase + 0xB4)
480#define SAR_REG_NOW	(card->membase + 0xB8)
481
482
483/*****************************************************************************/
484/*                                                                           */
485/*   Commands                                                                */
486/*                                                                           */
487/*****************************************************************************/
488
489#define SAR_CMD_NO_OPERATION         0x00000000
490#define SAR_CMD_OPENCLOSE_CONNECTION 0x20000000
491#define SAR_CMD_WRITE_SRAM           0x40000000
492#define SAR_CMD_READ_SRAM            0x50000000
493#define SAR_CMD_READ_UTILITY         0x80000000
494#define SAR_CMD_WRITE_UTILITY        0x90000000
495
496#define SAR_CMD_OPEN_CONNECTION     (SAR_CMD_OPENCLOSE_CONNECTION | 0x00080000)
497#define SAR_CMD_CLOSE_CONNECTION     SAR_CMD_OPENCLOSE_CONNECTION
498
499
500/*****************************************************************************/
501/*                                                                           */
502/*   Configuration Register bits                                             */
503/*                                                                           */
504/*****************************************************************************/
505
506#define SAR_CFG_SWRST          0x80000000  /* Software reset                 */
507#define SAR_CFG_LOOP           0x40000000  /* Internal Loopback              */
508#define SAR_CFG_RXPTH          0x20000000  /* Receive Path Enable            */
509#define SAR_CFG_IDLE_CLP       0x10000000  /* SAR set CLP Bits of Null Cells */
510#define SAR_CFG_TX_FIFO_SIZE_1 0x04000000  /* TX FIFO Size = 1 cell          */
511#define SAR_CFG_TX_FIFO_SIZE_2 0x08000000  /* TX FIFO Size = 2 cells         */
512#define SAR_CFG_TX_FIFO_SIZE_4 0x0C000000  /* TX FIFO Size = 4 cells         */
513#define SAR_CFG_TX_FIFO_SIZE_9 0x00000000  /* TX FIFO Size = 9 cells (full)  */
514#define SAR_CFG_NO_IDLE        0x02000000  /* SAR sends no Null Cells        */
515#define SAR_CFG_RSVD1          0x01000000  /* Reserved                       */
516#define SAR_CFG_RXSTQ_SIZE_2k  0x00000000  /* RX Stat Queue Size = 2048 byte */
517#define SAR_CFG_RXSTQ_SIZE_4k  0x00400000  /* RX Stat Queue Size = 4096 byte */
518#define SAR_CFG_RXSTQ_SIZE_8k  0x00800000  /* RX Stat Queue Size = 8192 byte */
519#define SAR_CFG_RXSTQ_SIZE_R   0x00C00000  /* RX Stat Queue Size = reserved  */
520#define SAR_CFG_ICAPT          0x00200000  /* accept Invalid Cells           */
521#define SAR_CFG_IGGFC          0x00100000  /* Ignore GFC                     */
522#define SAR_CFG_VPVCS_0        0x00000000  /* VPI/VCI Select bit range       */
523#define SAR_CFG_VPVCS_1        0x00040000  /* VPI/VCI Select bit range       */
524#define SAR_CFG_VPVCS_2        0x00080000  /* VPI/VCI Select bit range       */
525#define SAR_CFG_VPVCS_8        0x000C0000  /* VPI/VCI Select bit range       */
526#define SAR_CFG_CNTBL_1k       0x00000000  /* Connection Table Size          */
527#define SAR_CFG_CNTBL_4k       0x00010000  /* Connection Table Size          */
528#define SAR_CFG_CNTBL_16k      0x00020000  /* Connection Table Size          */
529#define SAR_CFG_CNTBL_512      0x00030000  /* Connection Table Size          */
530#define SAR_CFG_VPECA          0x00008000  /* VPI/VCI Error Cell Accept      */
531#define SAR_CFG_RXINT_NOINT    0x00000000  /* No Interrupt on PDU received   */
532#define SAR_CFG_RXINT_NODELAY  0x00001000  /* Interrupt without delay to host*/
533#define SAR_CFG_RXINT_256US    0x00002000  /* Interrupt with delay 256 usec  */
534#define SAR_CFG_RXINT_505US    0x00003000  /* Interrupt with delay 505 usec  */
535#define SAR_CFG_RXINT_742US    0x00004000  /* Interrupt with delay 742 usec  */
536#define SAR_CFG_RAWIE          0x00000800  /* Raw Cell Queue Interrupt Enable*/
537#define SAR_CFG_RQFIE          0x00000400  /* RSQ Almost Full Int Enable     */
538#define SAR_CFG_RSVD2          0x00000200  /* Reserved                       */
539#define SAR_CFG_CACHE          0x00000100  /* DMA on Cache Line Boundary     */
540#define SAR_CFG_TMOIE          0x00000080  /* Timer Roll Over Int Enable     */
541#define SAR_CFG_FBIE           0x00000040  /* Free Buffer Queue Int Enable   */
542#define SAR_CFG_TXEN           0x00000020  /* Transmit Operation Enable      */
543#define SAR_CFG_TXINT          0x00000010  /* Transmit status Int Enable     */
544#define SAR_CFG_TXUIE          0x00000008  /* Transmit underrun Int Enable   */
545#define SAR_CFG_UMODE          0x00000004  /* Utopia Mode Select             */
546#define SAR_CFG_TXSFI          0x00000002  /* Transmit status Full Int Enable*/
547#define SAR_CFG_PHYIE          0x00000001  /* PHY Interrupt Enable           */
548
549#define SAR_CFG_TX_FIFO_SIZE_MASK 0x0C000000  /* TX FIFO Size Mask           */
550#define SAR_CFG_RXSTQSIZE_MASK 0x00C00000
551#define SAR_CFG_CNTBL_MASK     0x00030000
552#define SAR_CFG_RXINT_MASK     0x00007000
553
554
555/*****************************************************************************/
556/*                                                                           */
557/*   Status Register bits                                                    */
558/*                                                                           */
559/*****************************************************************************/
560
561#define SAR_STAT_FRAC_3     0xF0000000 /* Fraction of Free Buffer Queue 3 */
562#define SAR_STAT_FRAC_2     0x0F000000 /* Fraction of Free Buffer Queue 2 */
563#define SAR_STAT_FRAC_1     0x00F00000 /* Fraction of Free Buffer Queue 1 */
564#define SAR_STAT_FRAC_0     0x000F0000 /* Fraction of Free Buffer Queue 0 */
565#define SAR_STAT_TSIF       0x00008000 /* Transmit Status Indicator       */
566#define SAR_STAT_TXICP      0x00004000 /* Transmit Status Indicator       */
567#define SAR_STAT_RSVD1      0x00002000 /* Reserved                        */
568#define SAR_STAT_TSQF       0x00001000 /* Transmit Status Queue full      */
569#define SAR_STAT_TMROF      0x00000800 /* Timer overflow                  */
570#define SAR_STAT_PHYI       0x00000400 /* PHY device Interrupt flag       */
571#define SAR_STAT_CMDBZ      0x00000200 /* ABR SAR Comand Busy Flag        */
572#define SAR_STAT_FBQ3A      0x00000100 /* Free Buffer Queue 3 Attention   */
573#define SAR_STAT_FBQ2A      0x00000080 /* Free Buffer Queue 2 Attention   */
574#define SAR_STAT_RSQF       0x00000040 /* Receive Status Queue full       */
575#define SAR_STAT_EPDU       0x00000020 /* End Of PDU Flag                 */
576#define SAR_STAT_RAWCF      0x00000010 /* Raw Cell Flag                   */
577#define SAR_STAT_FBQ1A      0x00000008 /* Free Buffer Queue 1 Attention   */
578#define SAR_STAT_FBQ0A      0x00000004 /* Free Buffer Queue 0 Attention   */
579#define SAR_STAT_RSQAF      0x00000002 /* Receive Status Queue almost full*/
580#define SAR_STAT_RSVD2      0x00000001 /* Reserved                        */
581
582
583/*****************************************************************************/
584/*                                                                           */
585/*   General Purpose Register bits                                           */
586/*                                                                           */
587/*****************************************************************************/
588
589#define SAR_GP_TXNCC_MASK   0xff000000  /* Transmit Negative Credit Count   */
590#define SAR_GP_EEDI         0x00010000  /* EEPROM Data In                   */
591#define SAR_GP_BIGE         0x00008000  /* Big Endian Operation             */
592#define SAR_GP_RM_NORMAL    0x00000000  /* Normal handling of RM cells      */
593#define SAR_GP_RM_TO_RCQ    0x00002000  /* put RM cells into Raw Cell Queue */
594#define SAR_GP_RM_RSVD      0x00004000  /* Reserved                         */
595#define SAR_GP_RM_INHIBIT   0x00006000  /* Inhibit update of Connection tab */
596#define SAR_GP_PHY_RESET    0x00000008  /* PHY Reset                        */
597#define SAR_GP_EESCLK	    0x00000004	/* EEPROM SCLK			    */
598#define SAR_GP_EECS	    0x00000002	/* EEPROM Chip Select		    */
599#define SAR_GP_EEDO	    0x00000001	/* EEPROM Data Out		    */
600
601
602/*****************************************************************************/
603/*                                                                           */
604/*   SAR local SRAM layout for 128k work SRAM                                */
605/*                                                                           */
606/*****************************************************************************/
607
608#define SAR_SRAM_SCD_SIZE        12
609#define SAR_SRAM_TCT_SIZE         8
610#define SAR_SRAM_RCT_SIZE         4
611
612#define SAR_SRAM_TCT_128_BASE    0x00000
613#define SAR_SRAM_TCT_128_TOP     0x01fff
614#define SAR_SRAM_RCT_128_BASE    0x02000
615#define SAR_SRAM_RCT_128_TOP     0x02fff
616#define SAR_SRAM_FB0_128_BASE    0x03000
617#define SAR_SRAM_FB0_128_TOP     0x033ff
618#define SAR_SRAM_FB1_128_BASE    0x03400
619#define SAR_SRAM_FB1_128_TOP     0x037ff
620#define SAR_SRAM_FB2_128_BASE    0x03800
621#define SAR_SRAM_FB2_128_TOP     0x03bff
622#define SAR_SRAM_FB3_128_BASE    0x03c00
623#define SAR_SRAM_FB3_128_TOP     0x03fff
624#define SAR_SRAM_SCD_128_BASE    0x04000
625#define SAR_SRAM_SCD_128_TOP     0x07fff
626#define SAR_SRAM_TST1_128_BASE   0x08000
627#define SAR_SRAM_TST1_128_TOP    0x0bfff
628#define SAR_SRAM_TST2_128_BASE   0x0c000
629#define SAR_SRAM_TST2_128_TOP    0x0ffff
630#define SAR_SRAM_ABRSTD_128_BASE 0x10000
631#define SAR_SRAM_ABRSTD_128_TOP  0x13fff
632#define SAR_SRAM_RT_128_BASE     0x14000
633#define SAR_SRAM_RT_128_TOP      0x15fff
634
635#define SAR_SRAM_FIFO_128_BASE   0x18000
636#define SAR_SRAM_FIFO_128_TOP    0x1ffff
637
638
639/*****************************************************************************/
640/*                                                                           */
641/*   SAR local SRAM layout for 32k work SRAM                                 */
642/*                                                                           */
643/*****************************************************************************/
644
645#define SAR_SRAM_TCT_32_BASE     0x00000
646#define SAR_SRAM_TCT_32_TOP      0x00fff
647#define SAR_SRAM_RCT_32_BASE     0x01000
648#define SAR_SRAM_RCT_32_TOP      0x017ff
649#define SAR_SRAM_FB0_32_BASE     0x01800
650#define SAR_SRAM_FB0_32_TOP      0x01bff
651#define SAR_SRAM_FB1_32_BASE     0x01c00
652#define SAR_SRAM_FB1_32_TOP      0x01fff
653#define SAR_SRAM_FB2_32_BASE     0x02000
654#define SAR_SRAM_FB2_32_TOP      0x023ff
655#define SAR_SRAM_FB3_32_BASE     0x02400
656#define SAR_SRAM_FB3_32_TOP      0x027ff
657#define SAR_SRAM_SCD_32_BASE     0x02800
658#define SAR_SRAM_SCD_32_TOP      0x03fff
659#define SAR_SRAM_TST1_32_BASE    0x04000
660#define SAR_SRAM_TST1_32_TOP     0x04fff
661#define SAR_SRAM_TST2_32_BASE    0x05000
662#define SAR_SRAM_TST2_32_TOP     0x05fff
663#define SAR_SRAM_ABRSTD_32_BASE  0x06000
664#define SAR_SRAM_ABRSTD_32_TOP   0x067ff
665#define SAR_SRAM_RT_32_BASE      0x06800
666#define SAR_SRAM_RT_32_TOP       0x06fff
667#define SAR_SRAM_FIFO_32_BASE    0x07000
668#define SAR_SRAM_FIFO_32_TOP     0x07fff
669
670
671/*****************************************************************************/
672/*                                                                           */
673/*   TSR - Transmit Status Request                                           */
674/*                                                                           */
675/*****************************************************************************/
676
677#define SAR_TSR_TYPE_TSR  0x80000000
678#define SAR_TSR_TYPE_TBD  0x00000000
679#define SAR_TSR_TSIF      0x20000000
680#define SAR_TSR_TAG_MASK  0x01F00000
681
682
683/*****************************************************************************/
684/*                                                                           */
685/*   TBD - Transmit Buffer Descriptor                                        */
686/*                                                                           */
687/*****************************************************************************/
688
689#define SAR_TBD_EPDU      0x40000000
690#define SAR_TBD_TSIF      0x20000000
691#define SAR_TBD_OAM       0x10000000
692#define SAR_TBD_AAL0      0x00000000
693#define SAR_TBD_AAL34     0x04000000
694#define SAR_TBD_AAL5      0x08000000
695#define SAR_TBD_GTSI      0x02000000
696#define SAR_TBD_TAG_MASK  0x01F00000
697
698#define SAR_TBD_VPI_MASK  0x0FF00000
699#define SAR_TBD_VCI_MASK  0x000FFFF0
700#define SAR_TBD_VC_MASK   (SAR_TBD_VPI_MASK | SAR_TBD_VCI_MASK)
701
702#define SAR_TBD_VPI_SHIFT 20
703#define SAR_TBD_VCI_SHIFT 4
704
705
706/*****************************************************************************/
707/*                                                                           */
708/*   RXFD - Receive FIFO Descriptor                                          */
709/*                                                                           */
710/*****************************************************************************/
711
712#define SAR_RXFD_SIZE_MASK     0x0F000000
713#define SAR_RXFD_SIZE_512      0x00000000  /* 512 words                      */
714#define SAR_RXFD_SIZE_1K       0x01000000  /* 1k words                       */
715#define SAR_RXFD_SIZE_2K       0x02000000  /* 2k words                       */
716#define SAR_RXFD_SIZE_4K       0x03000000  /* 4k words                       */
717#define SAR_RXFD_SIZE_8K       0x04000000  /* 8k words                       */
718#define SAR_RXFD_SIZE_16K      0x05000000  /* 16k words                      */
719#define SAR_RXFD_SIZE_32K      0x06000000  /* 32k words                      */
720#define SAR_RXFD_SIZE_64K      0x07000000  /* 64k words                      */
721#define SAR_RXFD_SIZE_128K     0x08000000  /* 128k words                     */
722#define SAR_RXFD_SIZE_256K     0x09000000  /* 256k words                     */
723#define SAR_RXFD_ADDR_MASK     0x001ffc00
724
725
726/*****************************************************************************/
727/*                                                                           */
728/*   ABRSTD - ABR + VBR Schedule Tables                                      */
729/*                                                                           */
730/*****************************************************************************/
731
732#define SAR_ABRSTD_SIZE_MASK   0x07000000
733#define SAR_ABRSTD_SIZE_512    0x00000000  /* 512 words                      */
734#define SAR_ABRSTD_SIZE_1K     0x01000000  /* 1k words                       */
735#define SAR_ABRSTD_SIZE_2K     0x02000000  /* 2k words                       */
736#define SAR_ABRSTD_SIZE_4K     0x03000000  /* 4k words                       */
737#define SAR_ABRSTD_SIZE_8K     0x04000000  /* 8k words                       */
738#define SAR_ABRSTD_SIZE_16K    0x05000000  /* 16k words                      */
739#define SAR_ABRSTD_ADDR_MASK   0x001ffc00
740
741
742/*****************************************************************************/
743/*                                                                           */
744/*   RCTE - Receive Connection Table Entry                                   */
745/*                                                                           */
746/*****************************************************************************/
747
748#define SAR_RCTE_IL_MASK       0xE0000000  /* inactivity limit               */
749#define SAR_RCTE_IC_MASK       0x1C000000  /* inactivity count               */
750#define SAR_RCTE_RSVD          0x02000000  /* reserved                       */
751#define SAR_RCTE_LCD           0x01000000  /* last cell data                 */
752#define SAR_RCTE_CI_VC         0x00800000  /* EFCI in previous cell of VC    */
753#define SAR_RCTE_FBP_01        0x00000000  /* 1. cell->FBQ0, others->FBQ1    */
754#define SAR_RCTE_FBP_1         0x00200000  /* use FBQ 1 for all cells        */
755#define SAR_RCTE_FBP_2         0x00400000  /* use FBQ 2 for all cells        */
756#define SAR_RCTE_FBP_3         0x00600000  /* use FBQ 3 for all cells        */
757#define SAR_RCTE_NZ_GFC        0x00100000  /* non zero GFC in all cell of VC */
758#define SAR_RCTE_CONNECTOPEN   0x00080000  /* VC is open                     */
759#define SAR_RCTE_AAL_MASK      0x00070000  /* mask for AAL type field s.b.   */
760#define SAR_RCTE_RAWCELLINTEN  0x00008000  /* raw cell interrupt enable      */
761#define SAR_RCTE_RXCONCELLADDR 0x00004000  /* RX constant cell address       */
762#define SAR_RCTE_BUFFSTAT_MASK 0x00003000  /* buffer status                  */
763#define SAR_RCTE_EFCI          0x00000800  /* EFCI Congestion flag           */
764#define SAR_RCTE_CLP           0x00000400  /* Cell Loss Priority flag        */
765#define SAR_RCTE_CRC           0x00000200  /* Recieved CRC Error             */
766#define SAR_RCTE_CELLCNT_MASK  0x000001FF  /* cell Count                     */
767
768#define SAR_RCTE_AAL0          0x00000000  /* AAL types for ALL field        */
769#define SAR_RCTE_AAL34         0x00010000
770#define SAR_RCTE_AAL5          0x00020000
771#define SAR_RCTE_RCQ           0x00030000
772#define SAR_RCTE_OAM           0x00040000
773
774#define TCMDQ_START		0x01000000
775#define TCMDQ_LACR		0x02000000
776#define TCMDQ_START_LACR	0x03000000
777#define TCMDQ_INIT_ER		0x04000000
778#define TCMDQ_HALT		0x05000000
779
780
781struct idt77252_skb_prv {
782	struct scqe	tbd;	/* Transmit Buffer Descriptor */
783	dma_addr_t	paddr;	/* DMA handle */
784	u32		pool;	/* sb_pool handle */
785};
786
787#define IDT77252_PRV_TBD(skb)	\
788	(((struct idt77252_skb_prv *)(ATM_SKB(skb)+1))->tbd)
789#define IDT77252_PRV_PADDR(skb)	\
790	(((struct idt77252_skb_prv *)(ATM_SKB(skb)+1))->paddr)
791#define IDT77252_PRV_POOL(skb)	\
792	(((struct idt77252_skb_prv *)(ATM_SKB(skb)+1))->pool)
793
794/*****************************************************************************/
795/*                                                                           */
796/*   PCI related items                                                       */
797/*                                                                           */
798/*****************************************************************************/
799
800#ifndef PCI_VENDOR_ID_IDT
801#define PCI_VENDOR_ID_IDT 0x111D
802#endif /* PCI_VENDOR_ID_IDT */
803
804#ifndef PCI_DEVICE_ID_IDT_IDT77252
805#define PCI_DEVICE_ID_IDT_IDT77252 0x0003
806#endif /* PCI_DEVICE_ID_IDT_IDT772052 */
807
808
809#endif /* !(_IDT77252_H) */
810