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plx9080.h
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1 /* plx9080.h
2  *
3  * Copyright (C) 2002,2003 Frank Mori Hess <[email protected]>
4  *
5  * I modified this file from the plx9060.h header for the
6  * wanXL device driver in the linux kernel,
7  * for the register offsets and bit definitions. Made minor modifications,
8  * added plx9080 registers and
9  * stripped out stuff that was specifically for the wanXL driver.
10  * Note: I've only made sure the definitions are correct as far
11  * as I make use of them. There are still various plx9060-isms
12  * left in this header file.
13  *
14  ********************************************************************
15  *
16  * Copyright (C) 1999 RG Studio s.c.
17  * Written by Krzysztof Halasa <[email protected]>
18  *
19  * Portions (C) SBE Inc., used by permission.
20  *
21  * This program is free software; you can redistribute it and/or
22  * modify it under the terms of the GNU General Public License
23  * as published by the Free Software Foundation; either version
24  * 2 of the License, or (at your option) any later version.
25  */
26 
27 #ifndef __COMEDI_PLX9080_H
28 #define __COMEDI_PLX9080_H
29 
30 /* descriptor block used for chained dma transfers */
31 struct plx_dma_desc {
32  volatile uint32_t pci_start_addr;
33  volatile uint32_t local_start_addr;
34  /* transfer_size is in bytes, only first 23 bits of register are used */
35  volatile uint32_t transfer_size;
36  /* address of next descriptor (quad word aligned), plus some
37  * additional bits (see PLX_DMA0_DESCRIPTOR_REG) */
38  volatile uint32_t next;
39 };
40 
41 /**********************************************************************
42 ** Register Offsets and Bit Definitions
43 **
44 ** Note: All offsets zero relative. IE. Some standard base address
45 ** must be added to the Register Number to properly access the register.
46 **
47 **********************************************************************/
48 
49 #define PLX_LAS0RNG_REG 0x0000 /* L, Local Addr Space 0 Range Register */
50 #define PLX_LAS1RNG_REG 0x00f0 /* L, Local Addr Space 1 Range Register */
51 #define LRNG_IO 0x00000001 /* Map to: 1=I/O, 0=Mem */
52 #define LRNG_ANY32 0x00000000 /* Locate anywhere in 32 bit */
53 #define LRNG_LT1MB 0x00000002 /* Locate in 1st meg */
54 #define LRNG_ANY64 0x00000004 /* Locate anywhere in 64 bit */
55 #define LRNG_MEM_MASK 0xfffffff0 /* bits that specify range for memory io */
56 #define LRNG_IO_MASK 0xfffffffa /* bits that specify range for normal io */
57 
58 #define PLX_LAS0MAP_REG 0x0004 /* L, Local Addr Space 0 Remap Register */
59 #define PLX_LAS1MAP_REG 0x00f4 /* L, Local Addr Space 1 Remap Register */
60 #define LMAP_EN 0x00000001 /* Enable slave decode */
61 #define LMAP_MEM_MASK 0xfffffff0 /* bits that specify decode for memory io */
62 #define LMAP_IO_MASK 0xfffffffa /* bits that specify decode bits for normal io */
63 
64 /* Mode/Arbitration Register.
65 */
66 #define PLX_MARB_REG 0x8 /* L, Local Arbitration Register */
67 #define PLX_DMAARB_REG 0xac
68 enum marb_bits {
69  MARB_LLT_MASK = 0x000000ff, /* Local Bus Latency Timer */
70  MARB_LPT_MASK = 0x0000ff00, /* Local Bus Pause Timer */
71  MARB_LTEN = 0x00010000, /* Latency Timer Enable */
72  MARB_LPEN = 0x00020000, /* Pause Timer Enable */
73  MARB_BREQ = 0x00040000, /* Local Bus BREQ Enable */
74  MARB_DMA_PRIORITY_MASK = 0x00180000,
75  MARB_LBDS_GIVE_UP_BUS_MODE = 0x00200000, /* local bus direct slave give up bus mode */
76  MARB_DS_LLOCK_ENABLE = 0x00400000, /* direct slave LLOCKo# enable */
77  MARB_PCI_REQUEST_MODE = 0x00800000,
78  MARB_PCIv21_MODE = 0x01000000, /* pci specification v2.1 mode */
79  MARB_PCI_READ_NO_WRITE_MODE = 0x02000000,
80  MARB_PCI_READ_WITH_WRITE_FLUSH_MODE = 0x04000000,
81  MARB_GATE_TIMER_WITH_BREQ = 0x08000000, /* gate local bus latency timer with BREQ */
82  MARB_PCI_READ_NO_FLUSH_MODE = 0x10000000,
83  MARB_USE_SUBSYSTEM_IDS = 0x20000000,
84 };
85 
86 #define PLX_BIGEND_REG 0xc
87 enum bigend_bits {
88  BIGEND_CONFIG = 0x1, /* use big endian ordering for configuration register accesses */
89  BIGEND_DIRECT_MASTER = 0x2,
90  BIGEND_DIRECT_SLAVE_LOCAL0 = 0x4,
91  BIGEND_ROM = 0x8,
92  BIGEND_BYTE_LANE = 0x10, /* use byte lane consisting of most significant bits instead of least significant */
93  BIGEND_DIRECT_SLAVE_LOCAL1 = 0x20,
94  BIGEND_DMA1 = 0x40,
95  BIGEND_DMA0 = 0x80,
96 };
97 
98 /* Note: The Expansion ROM stuff is only relevant to the PC environment.
99 ** This expansion ROM code is executed by the host CPU at boot time.
100 ** For this reason no bit definitions are provided here.
101 */
102 #define PLX_ROMRNG_REG 0x0010 /* L, Expn ROM Space Range Register */
103 #define PLX_ROMMAP_REG 0x0014 /* L, Local Addr Space Range Register */
104 
105 #define PLX_REGION0_REG 0x0018 /* L, Local Bus Region 0 Descriptor */
106 #define RGN_WIDTH 0x00000002 /* Local bus width bits */
107 #define RGN_8BITS 0x00000000 /* 08 bit Local Bus */
108 #define RGN_16BITS 0x00000001 /* 16 bit Local Bus */
109 #define RGN_32BITS 0x00000002 /* 32 bit Local Bus */
110 #define RGN_MWS 0x0000003C /* Memory Access Wait States */
111 #define RGN_0MWS 0x00000000
112 #define RGN_1MWS 0x00000004
113 #define RGN_2MWS 0x00000008
114 #define RGN_3MWS 0x0000000C
115 #define RGN_4MWS 0x00000010
116 #define RGN_6MWS 0x00000018
117 #define RGN_8MWS 0x00000020
118 #define RGN_MRE 0x00000040 /* Memory Space Ready Input Enable */
119 #define RGN_MBE 0x00000080 /* Memory Space Bterm Input Enable */
120 #define RGN_READ_PREFETCH_DISABLE 0x00000100
121 #define RGN_ROM_PREFETCH_DISABLE 0x00000200
122 #define RGN_READ_PREFETCH_COUNT_ENABLE 0x00000400
123 #define RGN_RWS 0x003C0000 /* Expn ROM Wait States */
124 #define RGN_RRE 0x00400000 /* ROM Space Ready Input Enable */
125 #define RGN_RBE 0x00800000 /* ROM Space Bterm Input Enable */
126 #define RGN_MBEN 0x01000000 /* Memory Space Burst Enable */
127 #define RGN_RBEN 0x04000000 /* ROM Space Burst Enable */
128 #define RGN_THROT 0x08000000 /* De-assert TRDY when FIFO full */
129 #define RGN_TRD 0xF0000000 /* Target Ready Delay /8 */
130 
131 #define PLX_REGION1_REG 0x00f8 /* L, Local Bus Region 1 Descriptor */
132 
133 #define PLX_DMRNG_REG 0x001C /* L, Direct Master Range Register */
134 
135 #define PLX_LBAPMEM_REG 0x0020 /* L, Lcl Base Addr for PCI mem space */
136 
137 #define PLX_LBAPIO_REG 0x0024 /* L, Lcl Base Addr for PCI I/O space */
138 
139 #define PLX_DMMAP_REG 0x0028 /* L, Direct Master Remap Register */
140 #define DMM_MAE 0x00000001 /* Direct Mstr Memory Acc Enable */
141 #define DMM_IAE 0x00000002 /* Direct Mstr I/O Acc Enable */
142 #define DMM_LCK 0x00000004 /* LOCK Input Enable */
143 #define DMM_PF4 0x00000008 /* Prefetch 4 Mode Enable */
144 #define DMM_THROT 0x00000010 /* Assert IRDY when read FIFO full */
145 #define DMM_PAF0 0x00000000 /* Programmable Almost fill level */
146 #define DMM_PAF1 0x00000020 /* Programmable Almost fill level */
147 #define DMM_PAF2 0x00000040 /* Programmable Almost fill level */
148 #define DMM_PAF3 0x00000060 /* Programmable Almost fill level */
149 #define DMM_PAF4 0x00000080 /* Programmable Almost fill level */
150 #define DMM_PAF5 0x000000A0 /* Programmable Almost fill level */
151 #define DMM_PAF6 0x000000C0 /* Programmable Almost fill level */
152 #define DMM_PAF7 0x000000D0 /* Programmable Almost fill level */
153 #define DMM_MAP 0xFFFF0000 /* Remap Address Bits */
154 
155 #define PLX_CAR_REG 0x002C /* L, Configuration Address Register */
156 #define CAR_CT0 0x00000000 /* Config Type 0 */
157 #define CAR_CT1 0x00000001 /* Config Type 1 */
158 #define CAR_REG 0x000000FC /* Register Number Bits */
159 #define CAR_FUN 0x00000700 /* Function Number Bits */
160 #define CAR_DEV 0x0000F800 /* Device Number Bits */
161 #define CAR_BUS 0x00FF0000 /* Bus Number Bits */
162 #define CAR_CFG 0x80000000 /* Config Spc Access Enable */
163 
164 #define PLX_DBR_IN_REG 0x0060 /* L, PCI to Local Doorbell Register */
165 
166 #define PLX_DBR_OUT_REG 0x0064 /* L, Local to PCI Doorbell Register */
167 
168 #define PLX_INTRCS_REG 0x0068 /* L, Interrupt Control/Status Reg */
169 #define ICS_AERR 0x00000001 /* Assert LSERR on ABORT */
170 #define ICS_PERR 0x00000002 /* Assert LSERR on Parity Error */
171 #define ICS_SERR 0x00000004 /* Generate PCI SERR# */
172 #define ICS_MBIE 0x00000008 /* mailbox interrupt enable */
173 #define ICS_PIE 0x00000100 /* PCI Interrupt Enable */
174 #define ICS_PDIE 0x00000200 /* PCI Doorbell Interrupt Enable */
175 #define ICS_PAIE 0x00000400 /* PCI Abort Interrupt Enable */
176 #define ICS_PLIE 0x00000800 /* PCI Local Int Enable */
177 #define ICS_RAE 0x00001000 /* Retry Abort Enable */
178 #define ICS_PDIA 0x00002000 /* PCI Doorbell Interrupt Active */
179 #define ICS_PAIA 0x00004000 /* PCI Abort Interrupt Active */
180 #define ICS_LIA 0x00008000 /* Local Interrupt Active */
181 #define ICS_LIE 0x00010000 /* Local Interrupt Enable */
182 #define ICS_LDIE 0x00020000 /* Local Doorbell Int Enable */
183 #define ICS_DMA0_E 0x00040000 /* DMA #0 Interrupt Enable */
184 #define ICS_DMA1_E 0x00080000 /* DMA #1 Interrupt Enable */
185 #define ICS_LDIA 0x00100000 /* Local Doorbell Int Active */
186 #define ICS_DMA0_A 0x00200000 /* DMA #0 Interrupt Active */
187 #define ICS_DMA1_A 0x00400000 /* DMA #1 Interrupt Active */
188 #define ICS_BIA 0x00800000 /* BIST Interrupt Active */
189 #define ICS_TA_DM 0x01000000 /* Target Abort - Direct Master */
190 #define ICS_TA_DMA0 0x02000000 /* Target Abort - DMA #0 */
191 #define ICS_TA_DMA1 0x04000000 /* Target Abort - DMA #1 */
192 #define ICS_TA_RA 0x08000000 /* Target Abort - Retry Timeout */
193 #define ICS_MBIA(x) (0x10000000 << ((x) & 0x3)) /* mailbox x is active */
194 
195 #define PLX_CONTROL_REG 0x006C /* L, EEPROM Cntl & PCI Cmd Codes */
196 #define CTL_RDMA 0x0000000E /* DMA Read Command */
197 #define CTL_WDMA 0x00000070 /* DMA Write Command */
198 #define CTL_RMEM 0x00000600 /* Memory Read Command */
199 #define CTL_WMEM 0x00007000 /* Memory Write Command */
200 #define CTL_USERO 0x00010000 /* USERO output pin control bit */
201 #define CTL_USERI 0x00020000 /* USERI input pin bit */
202 #define CTL_EE_CLK 0x01000000 /* EEPROM Clock line */
203 #define CTL_EE_CS 0x02000000 /* EEPROM Chip Select */
204 #define CTL_EE_W 0x04000000 /* EEPROM Write bit */
205 #define CTL_EE_R 0x08000000 /* EEPROM Read bit */
206 #define CTL_EECHK 0x10000000 /* EEPROM Present bit */
207 #define CTL_EERLD 0x20000000 /* EEPROM Reload Register */
208 #define CTL_RESET 0x40000000 /* !! Adapter Reset !! */
209 #define CTL_READY 0x80000000 /* Local Init Done */
210 
211 #define PLX_ID_REG 0x70 /* hard-coded plx vendor and device ids */
212 
213 #define PLX_REVISION_REG 0x74 /* silicon revision */
214 
215 #define PLX_DMA0_MODE_REG 0x80 /* dma channel 0 mode register */
216 #define PLX_DMA1_MODE_REG 0x94 /* dma channel 0 mode register */
217 #define PLX_LOCAL_BUS_16_WIDE_BITS 0x1
218 #define PLX_LOCAL_BUS_32_WIDE_BITS 0x3
219 #define PLX_LOCAL_BUS_WIDTH_MASK 0x3
220 #define PLX_DMA_EN_READYIN_BIT 0x40 /* enable ready in input */
221 #define PLX_EN_BTERM_BIT 0x80 /* enable BTERM# input */
222 #define PLX_DMA_LOCAL_BURST_EN_BIT 0x100 /* enable local burst mode */
223 #define PLX_EN_CHAIN_BIT 0x200 /* enables chaining */
224 #define PLX_EN_DMA_DONE_INTR_BIT 0x400 /* enables interrupt on dma done */
225 #define PLX_LOCAL_ADDR_CONST_BIT 0x800 /* hold local address constant (don't increment) */
226 #define PLX_DEMAND_MODE_BIT 0x1000 /* enables demand-mode for dma transfer */
227 #define PLX_EOT_ENABLE_BIT 0x4000
228 #define PLX_STOP_MODE_BIT 0x8000
229 #define PLX_DMA_INTR_PCI_BIT 0x20000 /* routes dma interrupt to pci bus (instead of local bus) */
230 
231 #define PLX_DMA0_PCI_ADDRESS_REG 0x84 /* pci address that dma transfers start at */
232 #define PLX_DMA1_PCI_ADDRESS_REG 0x98
233 
234 #define PLX_DMA0_LOCAL_ADDRESS_REG 0x88 /* local address that dma transfers start at */
235 #define PLX_DMA1_LOCAL_ADDRESS_REG 0x9c
236 
237 #define PLX_DMA0_TRANSFER_SIZE_REG 0x8c /* number of bytes to transfer (first 23 bits) */
238 #define PLX_DMA1_TRANSFER_SIZE_REG 0xa0
239 
240 #define PLX_DMA0_DESCRIPTOR_REG 0x90 /* descriptor pointer register */
241 #define PLX_DMA1_DESCRIPTOR_REG 0xa4
242 #define PLX_DESC_IN_PCI_BIT 0x1 /* descriptor is located in pci space (not local space) */
243 #define PLX_END_OF_CHAIN_BIT 0x2 /* end of chain bit */
244 #define PLX_INTR_TERM_COUNT 0x4 /* interrupt when this descriptor's transfer is finished */
245 #define PLX_XFER_LOCAL_TO_PCI 0x8 /* transfer from local to pci bus (not pci to local) */
246 
247 #define PLX_DMA0_CS_REG 0xa8 /* command status register */
248 #define PLX_DMA1_CS_REG 0xa9
249 #define PLX_DMA_EN_BIT 0x1 /* enable dma channel */
250 #define PLX_DMA_START_BIT 0x2 /* start dma transfer */
251 #define PLX_DMA_ABORT_BIT 0x4 /* abort dma transfer */
252 #define PLX_CLEAR_DMA_INTR_BIT 0x8 /* clear dma interrupt */
253 #define PLX_DMA_DONE_BIT 0x10 /* transfer done status bit */
254 
255 #define PLX_DMA0_THRESHOLD_REG 0xb0 /* command status register */
256 
257 /*
258  * Accesses near the end of memory can cause the PLX chip
259  * to pre-fetch data off of end-of-ram. Limit the size of
260  * memory so host-side accesses cannot occur.
261  */
262 
263 #define PLX_PREFETCH 32
264 
265 /*
266  * The PCI Interface, via the PCI-9060 Chip, has up to eight (8) Mailbox
267  * Registers. The PUTS (Power-Up Test Suite) handles the board-side
268  * interface/interaction using the first 4 registers. Specifications for
269  * the use of the full PUTS' command and status interface is contained
270  * within a separate SBE PUTS Manual. The Host-Side Device Driver only
271  * uses a subset of the full PUTS interface.
272  */
273 
274 /*****************************************/
275 /*** MAILBOX #(-1) - MEM ACCESS STS ***/
276 /*****************************************/
277 
278 #define MBX_STS_VALID 0x57584744 /* 'WXGD' */
279 #define MBX_STS_DILAV 0x44475857 /* swapped = 'DGXW' */
280 
281 /*****************************************/
282 /*** MAILBOX #0 - PUTS STATUS ***/
283 /*****************************************/
284 
285 #define MBX_STS_MASK 0x000000ff /* PUTS Status Register bits */
286 #define MBX_STS_TMASK 0x0000000f /* register bits for TEST number */
287 
288 #define MBX_STS_PCIRESET 0x00000100 /* Host issued PCI reset request */
289 #define MBX_STS_BUSY 0x00000080 /* PUTS is in progress */
290 #define MBX_STS_ERROR 0x00000040 /* PUTS has failed */
291 #define MBX_STS_RESERVED 0x000000c0 /* Undefined -> status in transition.
292  We are in process of changing
293  bits; we SET Error bit before
294  RESET of Busy bit */
295 
296 #define MBX_RESERVED_5 0x00000020 /* FYI: reserved/unused bit */
297 #define MBX_RESERVED_4 0x00000010 /* FYI: reserved/unused bit */
298 
299 /******************************************/
300 /*** MAILBOX #1 - PUTS COMMANDS ***/
301 /******************************************/
302 
303 /*
304  * Any attempt to execute an unimplement command results in the PUTS
305  * interface executing a NOOP and continuing as if the offending command
306  * completed normally. Note: this supplies a simple method to interrogate
307  * mailbox command processing functionality.
308  */
309 
310 #define MBX_CMD_MASK 0xffff0000 /* PUTS Command Register bits */
311 
312 #define MBX_CMD_ABORTJ 0x85000000 /* abort and jump */
313 #define MBX_CMD_RESETP 0x86000000 /* reset and pause at start */
314 #define MBX_CMD_PAUSE 0x87000000 /* pause immediately */
315 #define MBX_CMD_PAUSEC 0x88000000 /* pause on completion */
316 #define MBX_CMD_RESUME 0x89000000 /* resume operation */
317 #define MBX_CMD_STEP 0x8a000000 /* single step tests */
318 
319 #define MBX_CMD_BSWAP 0x8c000000 /* identify byte swap scheme */
320 #define MBX_CMD_BSWAP_0 0x8c000000 /* use scheme 0 */
321 #define MBX_CMD_BSWAP_1 0x8c000001 /* use scheme 1 */
322 
323 #define MBX_CMD_SETHMS 0x8d000000 /* setup host memory access window
324  size */
325 #define MBX_CMD_SETHBA 0x8e000000 /* setup host memory access base
326  address */
327 #define MBX_CMD_MGO 0x8f000000 /* perform memory setup and continue
328  (IE. Done) */
329 #define MBX_CMD_NOOP 0xFF000000 /* dummy, illegal command */
330 
331 /*****************************************/
332 /*** MAILBOX #2 - MEMORY SIZE ***/
333 /*****************************************/
334 
335 #define MBX_MEMSZ_MASK 0xffff0000 /* PUTS Memory Size Register bits */
336 
337 #define MBX_MEMSZ_128KB 0x00020000 /* 128 kilobyte board */
338 #define MBX_MEMSZ_256KB 0x00040000 /* 256 kilobyte board */
339 #define MBX_MEMSZ_512KB 0x00080000 /* 512 kilobyte board */
340 #define MBX_MEMSZ_1MB 0x00100000 /* 1 megabyte board */
341 #define MBX_MEMSZ_2MB 0x00200000 /* 2 megabyte board */
342 #define MBX_MEMSZ_4MB 0x00400000 /* 4 megabyte board */
343 #define MBX_MEMSZ_8MB 0x00800000 /* 8 megabyte board */
344 #define MBX_MEMSZ_16MB 0x01000000 /* 16 megabyte board */
345 
346 /***************************************/
347 /*** MAILBOX #2 - BOARD TYPE ***/
348 /***************************************/
349 
350 #define MBX_BTYPE_MASK 0x0000ffff /* PUTS Board Type Register */
351 #define MBX_BTYPE_FAMILY_MASK 0x0000ff00 /* PUTS Board Family Register */
352 #define MBX_BTYPE_SUBTYPE_MASK 0x000000ff /* PUTS Board Subtype */
353 
354 #define MBX_BTYPE_PLX9060 0x00000100 /* PLX family type */
355 #define MBX_BTYPE_PLX9080 0x00000300 /* PLX wanXL100s family type */
356 
357 #define MBX_BTYPE_WANXL_4 0x00000104 /* wanXL400, 4-port */
358 #define MBX_BTYPE_WANXL_2 0x00000102 /* wanXL200, 2-port */
359 #define MBX_BTYPE_WANXL_1s 0x00000301 /* wanXL100s, 1-port */
360 #define MBX_BTYPE_WANXL_1t 0x00000401 /* wanXL100T1, 1-port */
361 
362 /*****************************************/
363 /*** MAILBOX #3 - SHMQ MAILBOX ***/
364 /*****************************************/
365 
366 #define MBX_SMBX_MASK 0x000000ff /* PUTS SHMQ Mailbox bits */
367 
368 /***************************************/
369 /*** GENERIC HOST-SIDE DRIVER ***/
370 /***************************************/
371 
372 #define MBX_ERR 0
373 #define MBX_OK 1
374 
375 /* mailbox check routine - type of testing */
376 #define MBXCHK_STS 0x00 /* check for PUTS status */
377 #define MBXCHK_NOWAIT 0x01 /* dont care about PUTS status */
378 
379 /* system allocates this many bytes for address mapping mailbox space */
380 #define MBX_ADDR_SPACE_360 0x80 /* wanXL100s/200/400 */
381 #define MBX_ADDR_MASK_360 (MBX_ADDR_SPACE_360-1)
382 
383 static inline int plx9080_abort_dma(void __iomem *iobase, unsigned int channel)
384 {
385  void __iomem *dma_cs_addr;
386  uint8_t dma_status;
387  const int timeout = 10000;
388  unsigned int i;
389 
390  if (channel)
391  dma_cs_addr = iobase + PLX_DMA1_CS_REG;
392  else
393  dma_cs_addr = iobase + PLX_DMA0_CS_REG;
394 
395  /* abort dma transfer if necessary */
396  dma_status = readb(dma_cs_addr);
397  if ((dma_status & PLX_DMA_EN_BIT) == 0)
398  return 0;
399 
400  /* wait to make sure done bit is zero */
401  for (i = 0; (dma_status & PLX_DMA_DONE_BIT) && i < timeout; i++) {
402  udelay(1);
403  dma_status = readb(dma_cs_addr);
404  }
405  if (i == timeout) {
406  printk
407  ("plx9080: cancel() timed out waiting for dma %i done clear\n",
408  channel);
409  return -ETIMEDOUT;
410  }
411  /* disable and abort channel */
412  writeb(PLX_DMA_ABORT_BIT, dma_cs_addr);
413  /* wait for dma done bit */
414  dma_status = readb(dma_cs_addr);
415  for (i = 0; (dma_status & PLX_DMA_DONE_BIT) == 0 && i < timeout; i++) {
416  udelay(1);
417  dma_status = readb(dma_cs_addr);
418  }
419  if (i == timeout) {
420  printk
421  ("plx9080: cancel() timed out waiting for dma %i done set\n",
422  channel);
423  return -ETIMEDOUT;
424  }
425 
426  return 0;
427 }
428 
429 #endif /* __COMEDI_PLX9080_H */
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