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1da177e4 LT |
1 | /* |
2 | * icom.c | |
3 | * | |
4 | * Copyright (C) 2001 IBM Corporation. All rights reserved. | |
5 | * | |
6 | * Serial device driver. | |
7 | * | |
8 | * Based on code from serial.c | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | * | |
24 | */ | |
25 | #define SERIAL_DO_RESTART | |
26 | #include <linux/module.h> | |
27 | #include <linux/config.h> | |
1da177e4 LT |
28 | #include <linux/kernel.h> |
29 | #include <linux/errno.h> | |
30 | #include <linux/signal.h> | |
31 | #include <linux/sched.h> | |
32 | #include <linux/timer.h> | |
33 | #include <linux/interrupt.h> | |
34 | #include <linux/tty.h> | |
35 | #include <linux/termios.h> | |
36 | #include <linux/fs.h> | |
37 | #include <linux/tty_flip.h> | |
38 | #include <linux/serial.h> | |
39 | #include <linux/serial_reg.h> | |
40 | #include <linux/major.h> | |
41 | #include <linux/string.h> | |
42 | #include <linux/fcntl.h> | |
43 | #include <linux/ptrace.h> | |
44 | #include <linux/ioport.h> | |
45 | #include <linux/mm.h> | |
46 | #include <linux/slab.h> | |
47 | #include <linux/init.h> | |
48 | #include <linux/delay.h> | |
49 | #include <linux/pci.h> | |
50 | #include <linux/vmalloc.h> | |
51 | #include <linux/smp.h> | |
52 | #include <linux/smp_lock.h> | |
53 | #include <linux/spinlock.h> | |
54 | #include <linux/kobject.h> | |
55 | #include <linux/firmware.h> | |
56 | #include <linux/bitops.h> | |
57 | ||
58 | #include <asm/system.h> | |
59 | #include <asm/segment.h> | |
60 | #include <asm/io.h> | |
61 | #include <asm/irq.h> | |
62 | #include <asm/uaccess.h> | |
63 | ||
64 | #include "icom.h" | |
65 | ||
66 | /*#define ICOM_TRACE enable port trace capabilities */ | |
67 | ||
68 | #define ICOM_DRIVER_NAME "icom" | |
69 | #define ICOM_VERSION_STR "1.3.1" | |
70 | #define NR_PORTS 128 | |
71 | #define ICOM_PORT ((struct icom_port *)port) | |
72 | #define to_icom_adapter(d) container_of(d, struct icom_adapter, kobj) | |
73 | ||
74 | static const struct pci_device_id icom_pci_table[] = { | |
75 | { | |
76 | .vendor = PCI_VENDOR_ID_IBM, | |
77 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_1, | |
78 | .subvendor = PCI_ANY_ID, | |
79 | .subdevice = PCI_ANY_ID, | |
80 | .driver_data = ADAPTER_V1, | |
81 | }, | |
82 | { | |
83 | .vendor = PCI_VENDOR_ID_IBM, | |
84 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_2, | |
85 | .subvendor = PCI_VENDOR_ID_IBM, | |
86 | .subdevice = PCI_DEVICE_ID_IBM_ICOM_V2_TWO_PORTS_RVX, | |
87 | .driver_data = ADAPTER_V2, | |
88 | }, | |
89 | { | |
90 | .vendor = PCI_VENDOR_ID_IBM, | |
91 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_2, | |
92 | .subvendor = PCI_VENDOR_ID_IBM, | |
93 | .subdevice = PCI_DEVICE_ID_IBM_ICOM_V2_ONE_PORT_RVX_ONE_PORT_MDM, | |
94 | .driver_data = ADAPTER_V2, | |
95 | }, | |
96 | { | |
97 | .vendor = PCI_VENDOR_ID_IBM, | |
98 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_2, | |
99 | .subvendor = PCI_VENDOR_ID_IBM, | |
100 | .subdevice = PCI_DEVICE_ID_IBM_ICOM_FOUR_PORT_MODEL, | |
101 | .driver_data = ADAPTER_V2, | |
102 | }, | |
103 | {} | |
104 | }; | |
105 | ||
106 | struct lookup_proc_table start_proc[4] = { | |
107 | {NULL, ICOM_CONTROL_START_A}, | |
108 | {NULL, ICOM_CONTROL_START_B}, | |
109 | {NULL, ICOM_CONTROL_START_C}, | |
110 | {NULL, ICOM_CONTROL_START_D} | |
111 | }; | |
112 | ||
113 | ||
114 | struct lookup_proc_table stop_proc[4] = { | |
115 | {NULL, ICOM_CONTROL_STOP_A}, | |
116 | {NULL, ICOM_CONTROL_STOP_B}, | |
117 | {NULL, ICOM_CONTROL_STOP_C}, | |
118 | {NULL, ICOM_CONTROL_STOP_D} | |
119 | }; | |
120 | ||
121 | struct lookup_int_table int_mask_tbl[4] = { | |
122 | {NULL, ICOM_INT_MASK_PRC_A}, | |
123 | {NULL, ICOM_INT_MASK_PRC_B}, | |
124 | {NULL, ICOM_INT_MASK_PRC_C}, | |
125 | {NULL, ICOM_INT_MASK_PRC_D}, | |
126 | }; | |
127 | ||
128 | ||
129 | MODULE_DEVICE_TABLE(pci, icom_pci_table); | |
130 | ||
131 | static LIST_HEAD(icom_adapter_head); | |
132 | ||
133 | /* spinlock for adapter initialization and changing adapter operations */ | |
134 | static spinlock_t icom_lock; | |
135 | ||
136 | #ifdef ICOM_TRACE | |
137 | static inline void trace(struct icom_port *, char *, unsigned long) {}; | |
138 | #else | |
139 | static inline void trace(struct icom_port *icom_port, char *trace_pt, unsigned long trace_data) {}; | |
140 | #endif | |
141 | ||
142 | static void free_port_memory(struct icom_port *icom_port) | |
143 | { | |
144 | struct pci_dev *dev = icom_port->adapter->pci_dev; | |
145 | ||
146 | trace(icom_port, "RET_PORT_MEM", 0); | |
147 | if (icom_port->recv_buf) { | |
148 | pci_free_consistent(dev, 4096, icom_port->recv_buf, | |
149 | icom_port->recv_buf_pci); | |
150 | icom_port->recv_buf = NULL; | |
151 | } | |
152 | if (icom_port->xmit_buf) { | |
153 | pci_free_consistent(dev, 4096, icom_port->xmit_buf, | |
154 | icom_port->xmit_buf_pci); | |
155 | icom_port->xmit_buf = NULL; | |
156 | } | |
157 | if (icom_port->statStg) { | |
158 | pci_free_consistent(dev, 4096, icom_port->statStg, | |
159 | icom_port->statStg_pci); | |
160 | icom_port->statStg = NULL; | |
161 | } | |
162 | ||
163 | if (icom_port->xmitRestart) { | |
164 | pci_free_consistent(dev, 4096, icom_port->xmitRestart, | |
165 | icom_port->xmitRestart_pci); | |
166 | icom_port->xmitRestart = NULL; | |
167 | } | |
168 | } | |
169 | ||
170 | static int __init get_port_memory(struct icom_port *icom_port) | |
171 | { | |
172 | int index; | |
173 | unsigned long stgAddr; | |
174 | unsigned long startStgAddr; | |
175 | unsigned long offset; | |
176 | struct pci_dev *dev = icom_port->adapter->pci_dev; | |
177 | ||
178 | icom_port->xmit_buf = | |
179 | pci_alloc_consistent(dev, 4096, &icom_port->xmit_buf_pci); | |
180 | if (!icom_port->xmit_buf) { | |
181 | dev_err(&dev->dev, "Can not allocate Transmit buffer\n"); | |
182 | return -ENOMEM; | |
183 | } | |
184 | ||
185 | trace(icom_port, "GET_PORT_MEM", | |
186 | (unsigned long) icom_port->xmit_buf); | |
187 | ||
188 | icom_port->recv_buf = | |
189 | pci_alloc_consistent(dev, 4096, &icom_port->recv_buf_pci); | |
190 | if (!icom_port->recv_buf) { | |
191 | dev_err(&dev->dev, "Can not allocate Receive buffer\n"); | |
192 | free_port_memory(icom_port); | |
193 | return -ENOMEM; | |
194 | } | |
195 | trace(icom_port, "GET_PORT_MEM", | |
196 | (unsigned long) icom_port->recv_buf); | |
197 | ||
198 | icom_port->statStg = | |
199 | pci_alloc_consistent(dev, 4096, &icom_port->statStg_pci); | |
200 | if (!icom_port->statStg) { | |
201 | dev_err(&dev->dev, "Can not allocate Status buffer\n"); | |
202 | free_port_memory(icom_port); | |
203 | return -ENOMEM; | |
204 | } | |
205 | trace(icom_port, "GET_PORT_MEM", | |
206 | (unsigned long) icom_port->statStg); | |
207 | ||
208 | icom_port->xmitRestart = | |
209 | pci_alloc_consistent(dev, 4096, &icom_port->xmitRestart_pci); | |
210 | if (!icom_port->xmitRestart) { | |
211 | dev_err(&dev->dev, | |
212 | "Can not allocate xmit Restart buffer\n"); | |
213 | free_port_memory(icom_port); | |
214 | return -ENOMEM; | |
215 | } | |
216 | ||
217 | memset(icom_port->statStg, 0, 4096); | |
218 | ||
219 | /* FODs: Frame Out Descriptor Queue, this is a FIFO queue that | |
220 | indicates that frames are to be transmitted | |
221 | */ | |
222 | ||
223 | stgAddr = (unsigned long) icom_port->statStg; | |
224 | for (index = 0; index < NUM_XBUFFS; index++) { | |
225 | trace(icom_port, "FOD_ADDR", stgAddr); | |
226 | stgAddr = stgAddr + sizeof(icom_port->statStg->xmit[0]); | |
227 | if (index < (NUM_XBUFFS - 1)) { | |
228 | memset(&icom_port->statStg->xmit[index], 0, sizeof(struct xmit_status_area)); | |
229 | icom_port->statStg->xmit[index].leLengthASD = | |
230 | (unsigned short int) cpu_to_le16(XMIT_BUFF_SZ); | |
231 | trace(icom_port, "FOD_ADDR", stgAddr); | |
232 | trace(icom_port, "FOD_XBUFF", | |
233 | (unsigned long) icom_port->xmit_buf); | |
234 | icom_port->statStg->xmit[index].leBuffer = | |
235 | cpu_to_le32(icom_port->xmit_buf_pci); | |
236 | } else if (index == (NUM_XBUFFS - 1)) { | |
237 | memset(&icom_port->statStg->xmit[index], 0, sizeof(struct xmit_status_area)); | |
238 | icom_port->statStg->xmit[index].leLengthASD = | |
239 | (unsigned short int) cpu_to_le16(XMIT_BUFF_SZ); | |
240 | trace(icom_port, "FOD_XBUFF", | |
241 | (unsigned long) icom_port->xmit_buf); | |
242 | icom_port->statStg->xmit[index].leBuffer = | |
243 | cpu_to_le32(icom_port->xmit_buf_pci); | |
244 | } else { | |
245 | memset(&icom_port->statStg->xmit[index], 0, sizeof(struct xmit_status_area)); | |
246 | } | |
247 | } | |
248 | /* FIDs */ | |
249 | startStgAddr = stgAddr; | |
250 | ||
251 | /* fill in every entry, even if no buffer */ | |
252 | for (index = 0; index < NUM_RBUFFS; index++) { | |
253 | trace(icom_port, "FID_ADDR", stgAddr); | |
254 | stgAddr = stgAddr + sizeof(icom_port->statStg->rcv[0]); | |
255 | icom_port->statStg->rcv[index].leLength = 0; | |
256 | icom_port->statStg->rcv[index].WorkingLength = | |
257 | (unsigned short int) cpu_to_le16(RCV_BUFF_SZ); | |
258 | if (index < (NUM_RBUFFS - 1) ) { | |
259 | offset = stgAddr - (unsigned long) icom_port->statStg; | |
260 | icom_port->statStg->rcv[index].leNext = | |
261 | cpu_to_le32(icom_port-> statStg_pci + offset); | |
262 | trace(icom_port, "FID_RBUFF", | |
263 | (unsigned long) icom_port->recv_buf); | |
264 | icom_port->statStg->rcv[index].leBuffer = | |
265 | cpu_to_le32(icom_port->recv_buf_pci); | |
266 | } else if (index == (NUM_RBUFFS -1) ) { | |
267 | offset = startStgAddr - (unsigned long) icom_port->statStg; | |
268 | icom_port->statStg->rcv[index].leNext = | |
269 | cpu_to_le32(icom_port-> statStg_pci + offset); | |
270 | trace(icom_port, "FID_RBUFF", | |
271 | (unsigned long) icom_port->recv_buf + 2048); | |
272 | icom_port->statStg->rcv[index].leBuffer = | |
273 | cpu_to_le32(icom_port->recv_buf_pci + 2048); | |
274 | } else { | |
275 | icom_port->statStg->rcv[index].leNext = 0; | |
276 | icom_port->statStg->rcv[index].leBuffer = 0; | |
277 | } | |
278 | } | |
279 | ||
280 | return 0; | |
281 | } | |
282 | ||
283 | static void stop_processor(struct icom_port *icom_port) | |
284 | { | |
285 | unsigned long temp; | |
286 | unsigned long flags; | |
287 | int port; | |
288 | ||
289 | spin_lock_irqsave(&icom_lock, flags); | |
290 | ||
291 | port = icom_port->port; | |
292 | if (port == 0 || port == 1) | |
293 | stop_proc[port].global_control_reg = &icom_port->global_reg->control; | |
294 | else | |
295 | stop_proc[port].global_control_reg = &icom_port->global_reg->control_2; | |
296 | ||
297 | ||
298 | if (port < 4) { | |
299 | temp = readl(stop_proc[port].global_control_reg); | |
300 | temp = | |
301 | (temp & ~start_proc[port].processor_id) | stop_proc[port].processor_id; | |
302 | writel(temp, stop_proc[port].global_control_reg); | |
303 | ||
304 | /* write flush */ | |
305 | readl(stop_proc[port].global_control_reg); | |
306 | } else { | |
307 | dev_err(&icom_port->adapter->pci_dev->dev, | |
308 | "Invalid port assignment\n"); | |
309 | } | |
310 | ||
311 | spin_unlock_irqrestore(&icom_lock, flags); | |
312 | } | |
313 | ||
314 | static void start_processor(struct icom_port *icom_port) | |
315 | { | |
316 | unsigned long temp; | |
317 | unsigned long flags; | |
318 | int port; | |
319 | ||
320 | spin_lock_irqsave(&icom_lock, flags); | |
321 | ||
322 | port = icom_port->port; | |
323 | if (port == 0 || port == 1) | |
324 | start_proc[port].global_control_reg = &icom_port->global_reg->control; | |
325 | else | |
326 | start_proc[port].global_control_reg = &icom_port->global_reg->control_2; | |
327 | if (port < 4) { | |
328 | temp = readl(start_proc[port].global_control_reg); | |
329 | temp = | |
330 | (temp & ~stop_proc[port].processor_id) | start_proc[port].processor_id; | |
331 | writel(temp, start_proc[port].global_control_reg); | |
332 | ||
333 | /* write flush */ | |
334 | readl(start_proc[port].global_control_reg); | |
335 | } else { | |
336 | dev_err(&icom_port->adapter->pci_dev->dev, | |
337 | "Invalid port assignment\n"); | |
338 | } | |
339 | ||
340 | spin_unlock_irqrestore(&icom_lock, flags); | |
341 | } | |
342 | ||
343 | static void load_code(struct icom_port *icom_port) | |
344 | { | |
345 | const struct firmware *fw; | |
346 | char __iomem *iram_ptr; | |
347 | int index; | |
348 | int status = 0; | |
349 | void __iomem *dram_ptr = icom_port->dram; | |
350 | dma_addr_t temp_pci; | |
351 | unsigned char *new_page = NULL; | |
352 | unsigned char cable_id = NO_CABLE; | |
353 | struct pci_dev *dev = icom_port->adapter->pci_dev; | |
354 | ||
355 | /* Clear out any pending interrupts */ | |
356 | writew(0x3FFF, icom_port->int_reg); | |
357 | ||
358 | trace(icom_port, "CLEAR_INTERRUPTS", 0); | |
359 | ||
360 | /* Stop processor */ | |
361 | stop_processor(icom_port); | |
362 | ||
363 | /* Zero out DRAM */ | |
364 | memset_io(dram_ptr, 0, 512); | |
365 | ||
366 | /* Load Call Setup into Adapter */ | |
367 | if (request_firmware(&fw, "icom_call_setup.bin", &dev->dev) < 0) { | |
368 | dev_err(&dev->dev,"Unable to load icom_call_setup.bin firmware image\n"); | |
369 | status = -1; | |
370 | goto load_code_exit; | |
371 | } | |
372 | ||
373 | if (fw->size > ICOM_DCE_IRAM_OFFSET) { | |
374 | dev_err(&dev->dev, "Invalid firmware image for icom_call_setup.bin found.\n"); | |
375 | release_firmware(fw); | |
376 | status = -1; | |
377 | goto load_code_exit; | |
378 | } | |
379 | ||
380 | iram_ptr = (char __iomem *)icom_port->dram + ICOM_IRAM_OFFSET; | |
381 | for (index = 0; index < fw->size; index++) | |
382 | writeb(fw->data[index], &iram_ptr[index]); | |
383 | ||
384 | release_firmware(fw); | |
385 | ||
386 | /* Load Resident DCE portion of Adapter */ | |
387 | if (request_firmware(&fw, "icom_res_dce.bin", &dev->dev) < 0) { | |
388 | dev_err(&dev->dev,"Unable to load icom_res_dce.bin firmware image\n"); | |
389 | status = -1; | |
390 | goto load_code_exit; | |
391 | } | |
392 | ||
393 | if (fw->size > ICOM_IRAM_SIZE) { | |
394 | dev_err(&dev->dev, "Invalid firmware image for icom_res_dce.bin found.\n"); | |
395 | release_firmware(fw); | |
396 | status = -1; | |
397 | goto load_code_exit; | |
398 | } | |
399 | ||
400 | iram_ptr = (char __iomem *) icom_port->dram + ICOM_IRAM_OFFSET; | |
401 | for (index = ICOM_DCE_IRAM_OFFSET; index < fw->size; index++) | |
402 | writeb(fw->data[index], &iram_ptr[index]); | |
403 | ||
404 | release_firmware(fw); | |
405 | ||
406 | /* Set Hardware level */ | |
407 | if ((icom_port->adapter->version | ADAPTER_V2) == ADAPTER_V2) | |
408 | writeb(V2_HARDWARE, &(icom_port->dram->misc_flags)); | |
409 | ||
410 | /* Start the processor in Adapter */ | |
411 | start_processor(icom_port); | |
412 | ||
413 | writeb((HDLC_PPP_PURE_ASYNC | HDLC_FF_FILL), | |
414 | &(icom_port->dram->HDLCConfigReg)); | |
415 | writeb(0x04, &(icom_port->dram->FlagFillIdleTimer)); /* 0.5 seconds */ | |
416 | writeb(0x00, &(icom_port->dram->CmdReg)); | |
417 | writeb(0x10, &(icom_port->dram->async_config3)); | |
418 | writeb((ICOM_ACFG_DRIVE1 | ICOM_ACFG_NO_PARITY | ICOM_ACFG_8BPC | | |
419 | ICOM_ACFG_1STOP_BIT), &(icom_port->dram->async_config2)); | |
420 | ||
421 | /*Set up data in icom DRAM to indicate where personality | |
422 | *code is located and its length. | |
423 | */ | |
424 | new_page = pci_alloc_consistent(dev, 4096, &temp_pci); | |
425 | ||
426 | if (!new_page) { | |
427 | dev_err(&dev->dev, "Can not allocate DMA buffer\n"); | |
428 | status = -1; | |
429 | goto load_code_exit; | |
430 | } | |
431 | ||
432 | if (request_firmware(&fw, "icom_asc.bin", &dev->dev) < 0) { | |
433 | dev_err(&dev->dev,"Unable to load icom_asc.bin firmware image\n"); | |
434 | status = -1; | |
435 | goto load_code_exit; | |
436 | } | |
437 | ||
438 | if (fw->size > ICOM_DCE_IRAM_OFFSET) { | |
439 | dev_err(&dev->dev, "Invalid firmware image for icom_asc.bin found.\n"); | |
440 | release_firmware(fw); | |
441 | status = -1; | |
442 | goto load_code_exit; | |
443 | } | |
444 | ||
445 | for (index = 0; index < fw->size; index++) | |
446 | new_page[index] = fw->data[index]; | |
447 | ||
448 | release_firmware(fw); | |
449 | ||
450 | writeb((char) ((fw->size + 16)/16), &icom_port->dram->mac_length); | |
451 | writel(temp_pci, &icom_port->dram->mac_load_addr); | |
452 | ||
453 | /*Setting the syncReg to 0x80 causes adapter to start downloading | |
454 | the personality code into adapter instruction RAM. | |
455 | Once code is loaded, it will begin executing and, based on | |
456 | information provided above, will start DMAing data from | |
457 | shared memory to adapter DRAM. | |
458 | */ | |
459 | /* the wait loop below verifies this write operation has been done | |
460 | and processed | |
461 | */ | |
462 | writeb(START_DOWNLOAD, &icom_port->dram->sync); | |
463 | ||
464 | /* Wait max 1 Sec for data download and processor to start */ | |
465 | for (index = 0; index < 10; index++) { | |
466 | msleep(100); | |
467 | if (readb(&icom_port->dram->misc_flags) & ICOM_HDW_ACTIVE) | |
468 | break; | |
469 | } | |
470 | ||
471 | if (index == 10) | |
472 | status = -1; | |
473 | ||
474 | /* | |
475 | * check Cable ID | |
476 | */ | |
477 | cable_id = readb(&icom_port->dram->cable_id); | |
478 | ||
479 | if (cable_id & ICOM_CABLE_ID_VALID) { | |
480 | /* Get cable ID into the lower 4 bits (standard form) */ | |
481 | cable_id = (cable_id & ICOM_CABLE_ID_MASK) >> 4; | |
482 | icom_port->cable_id = cable_id; | |
483 | } else { | |
484 | dev_err(&dev->dev,"Invalid or no cable attached\n"); | |
485 | icom_port->cable_id = NO_CABLE; | |
486 | } | |
487 | ||
488 | load_code_exit: | |
489 | ||
490 | if (status != 0) { | |
491 | /* Clear out any pending interrupts */ | |
492 | writew(0x3FFF, icom_port->int_reg); | |
493 | ||
494 | /* Turn off port */ | |
495 | writeb(ICOM_DISABLE, &(icom_port->dram->disable)); | |
496 | ||
497 | /* Stop processor */ | |
498 | stop_processor(icom_port); | |
499 | ||
500 | dev_err(&icom_port->adapter->pci_dev->dev,"Port not opertional\n"); | |
501 | } | |
502 | ||
503 | if (new_page != NULL) | |
504 | pci_free_consistent(dev, 4096, new_page, temp_pci); | |
505 | } | |
506 | ||
507 | static int startup(struct icom_port *icom_port) | |
508 | { | |
509 | unsigned long temp; | |
510 | unsigned char cable_id, raw_cable_id; | |
511 | unsigned long flags; | |
512 | int port; | |
513 | ||
514 | trace(icom_port, "STARTUP", 0); | |
515 | ||
516 | if (!icom_port->dram) { | |
517 | /* should NEVER be NULL */ | |
518 | dev_err(&icom_port->adapter->pci_dev->dev, | |
519 | "Unusable Port, port configuration missing\n"); | |
520 | return -ENODEV; | |
521 | } | |
522 | ||
523 | /* | |
524 | * check Cable ID | |
525 | */ | |
526 | raw_cable_id = readb(&icom_port->dram->cable_id); | |
527 | trace(icom_port, "CABLE_ID", raw_cable_id); | |
528 | ||
529 | /* Get cable ID into the lower 4 bits (standard form) */ | |
530 | cable_id = (raw_cable_id & ICOM_CABLE_ID_MASK) >> 4; | |
531 | ||
532 | /* Check for valid Cable ID */ | |
533 | if (!(raw_cable_id & ICOM_CABLE_ID_VALID) || | |
534 | (cable_id != icom_port->cable_id)) { | |
535 | ||
536 | /* reload adapter code, pick up any potential changes in cable id */ | |
537 | load_code(icom_port); | |
538 | ||
539 | /* still no sign of cable, error out */ | |
540 | raw_cable_id = readb(&icom_port->dram->cable_id); | |
541 | cable_id = (raw_cable_id & ICOM_CABLE_ID_MASK) >> 4; | |
542 | if (!(raw_cable_id & ICOM_CABLE_ID_VALID) || | |
543 | (icom_port->cable_id == NO_CABLE)) | |
544 | return -EIO; | |
545 | } | |
546 | ||
547 | /* | |
548 | * Finally, clear and enable interrupts | |
549 | */ | |
550 | spin_lock_irqsave(&icom_lock, flags); | |
551 | port = icom_port->port; | |
552 | if (port == 0 || port == 1) | |
553 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask; | |
554 | else | |
555 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask_2; | |
556 | ||
557 | if (port == 0 || port == 2) | |
558 | writew(0x00FF, icom_port->int_reg); | |
559 | else | |
560 | writew(0x3F00, icom_port->int_reg); | |
561 | if (port < 4) { | |
562 | temp = readl(int_mask_tbl[port].global_int_mask); | |
563 | writel(temp & ~int_mask_tbl[port].processor_id, int_mask_tbl[port].global_int_mask); | |
564 | ||
565 | /* write flush */ | |
566 | readl(int_mask_tbl[port].global_int_mask); | |
567 | } else { | |
568 | dev_err(&icom_port->adapter->pci_dev->dev, | |
569 | "Invalid port assignment\n"); | |
570 | } | |
571 | ||
572 | spin_unlock_irqrestore(&icom_lock, flags); | |
573 | return 0; | |
574 | } | |
575 | ||
576 | static void shutdown(struct icom_port *icom_port) | |
577 | { | |
578 | unsigned long temp; | |
579 | unsigned char cmdReg; | |
580 | unsigned long flags; | |
581 | int port; | |
582 | ||
583 | spin_lock_irqsave(&icom_lock, flags); | |
584 | trace(icom_port, "SHUTDOWN", 0); | |
585 | ||
586 | /* | |
587 | * disable all interrupts | |
588 | */ | |
589 | port = icom_port->port; | |
590 | if (port == 0 || port == 1) | |
591 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask; | |
592 | else | |
593 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask_2; | |
594 | ||
595 | if (port < 4) { | |
596 | temp = readl(int_mask_tbl[port].global_int_mask); | |
597 | writel(temp | int_mask_tbl[port].processor_id, int_mask_tbl[port].global_int_mask); | |
598 | ||
599 | /* write flush */ | |
600 | readl(int_mask_tbl[port].global_int_mask); | |
601 | } else { | |
602 | dev_err(&icom_port->adapter->pci_dev->dev, | |
603 | "Invalid port assignment\n"); | |
604 | } | |
605 | spin_unlock_irqrestore(&icom_lock, flags); | |
606 | ||
607 | /* | |
608 | * disable break condition | |
609 | */ | |
610 | cmdReg = readb(&icom_port->dram->CmdReg); | |
611 | if ((cmdReg | CMD_SND_BREAK) == CMD_SND_BREAK) { | |
612 | writeb(cmdReg & ~CMD_SND_BREAK, &icom_port->dram->CmdReg); | |
613 | } | |
614 | } | |
615 | ||
616 | static int icom_write(struct uart_port *port) | |
617 | { | |
618 | unsigned long data_count; | |
619 | unsigned char cmdReg; | |
620 | unsigned long offset; | |
621 | int temp_tail = port->info->xmit.tail; | |
622 | ||
623 | trace(ICOM_PORT, "WRITE", 0); | |
624 | ||
625 | if (cpu_to_le16(ICOM_PORT->statStg->xmit[0].flags) & | |
626 | SA_FLAGS_READY_TO_XMIT) { | |
627 | trace(ICOM_PORT, "WRITE_FULL", 0); | |
628 | return 0; | |
629 | } | |
630 | ||
631 | data_count = 0; | |
632 | while ((port->info->xmit.head != temp_tail) && | |
633 | (data_count <= XMIT_BUFF_SZ)) { | |
634 | ||
635 | ICOM_PORT->xmit_buf[data_count++] = | |
636 | port->info->xmit.buf[temp_tail]; | |
637 | ||
638 | temp_tail++; | |
639 | temp_tail &= (UART_XMIT_SIZE - 1); | |
640 | } | |
641 | ||
642 | if (data_count) { | |
643 | ICOM_PORT->statStg->xmit[0].flags = | |
644 | cpu_to_le16(SA_FLAGS_READY_TO_XMIT); | |
645 | ICOM_PORT->statStg->xmit[0].leLength = | |
646 | cpu_to_le16(data_count); | |
647 | offset = | |
648 | (unsigned long) &ICOM_PORT->statStg->xmit[0] - | |
649 | (unsigned long) ICOM_PORT->statStg; | |
650 | *ICOM_PORT->xmitRestart = | |
651 | cpu_to_le32(ICOM_PORT->statStg_pci + offset); | |
652 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
653 | writeb(cmdReg | CMD_XMIT_RCV_ENABLE, | |
654 | &ICOM_PORT->dram->CmdReg); | |
655 | writeb(START_XMIT, &ICOM_PORT->dram->StartXmitCmd); | |
656 | trace(ICOM_PORT, "WRITE_START", data_count); | |
657 | /* write flush */ | |
658 | readb(&ICOM_PORT->dram->StartXmitCmd); | |
659 | } | |
660 | ||
661 | return data_count; | |
662 | } | |
663 | ||
664 | static inline void check_modem_status(struct icom_port *icom_port) | |
665 | { | |
666 | static char old_status = 0; | |
667 | char delta_status; | |
668 | unsigned char status; | |
669 | ||
670 | spin_lock(&icom_port->uart_port.lock); | |
671 | ||
672 | /*modem input register */ | |
673 | status = readb(&icom_port->dram->isr); | |
674 | trace(icom_port, "CHECK_MODEM", status); | |
675 | delta_status = status ^ old_status; | |
676 | if (delta_status) { | |
677 | if (delta_status & ICOM_RI) | |
678 | icom_port->uart_port.icount.rng++; | |
679 | if (delta_status & ICOM_DSR) | |
680 | icom_port->uart_port.icount.dsr++; | |
681 | if (delta_status & ICOM_DCD) | |
682 | uart_handle_dcd_change(&icom_port->uart_port, | |
683 | delta_status & ICOM_DCD); | |
684 | if (delta_status & ICOM_CTS) | |
685 | uart_handle_cts_change(&icom_port->uart_port, | |
686 | delta_status & ICOM_CTS); | |
687 | ||
688 | wake_up_interruptible(&icom_port->uart_port.info-> | |
689 | delta_msr_wait); | |
690 | old_status = status; | |
691 | } | |
692 | spin_unlock(&icom_port->uart_port.lock); | |
693 | } | |
694 | ||
695 | static void xmit_interrupt(u16 port_int_reg, struct icom_port *icom_port) | |
696 | { | |
697 | unsigned short int count; | |
698 | int i; | |
699 | ||
700 | if (port_int_reg & (INT_XMIT_COMPLETED)) { | |
701 | trace(icom_port, "XMIT_COMPLETE", 0); | |
702 | ||
703 | /* clear buffer in use bit */ | |
704 | icom_port->statStg->xmit[0].flags &= | |
705 | cpu_to_le16(~SA_FLAGS_READY_TO_XMIT); | |
706 | ||
707 | count = (unsigned short int) | |
708 | cpu_to_le16(icom_port->statStg->xmit[0].leLength); | |
709 | icom_port->uart_port.icount.tx += count; | |
710 | ||
711 | for (i=0; i<count && | |
712 | !uart_circ_empty(&icom_port->uart_port.info->xmit); i++) { | |
713 | ||
714 | icom_port->uart_port.info->xmit.tail++; | |
715 | icom_port->uart_port.info->xmit.tail &= | |
716 | (UART_XMIT_SIZE - 1); | |
717 | } | |
718 | ||
719 | if (!icom_write(&icom_port->uart_port)) | |
720 | /* activate write queue */ | |
721 | uart_write_wakeup(&icom_port->uart_port); | |
722 | } else | |
723 | trace(icom_port, "XMIT_DISABLED", 0); | |
724 | } | |
725 | ||
726 | static void recv_interrupt(u16 port_int_reg, struct icom_port *icom_port) | |
727 | { | |
728 | short int count, rcv_buff; | |
729 | struct tty_struct *tty = icom_port->uart_port.info->tty; | |
730 | unsigned short int status; | |
731 | struct uart_icount *icount; | |
732 | unsigned long offset; | |
733 | ||
734 | trace(icom_port, "RCV_COMPLETE", 0); | |
735 | rcv_buff = icom_port->next_rcv; | |
736 | ||
737 | status = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].flags); | |
738 | while (status & SA_FL_RCV_DONE) { | |
739 | ||
740 | trace(icom_port, "FID_STATUS", status); | |
741 | count = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].leLength); | |
742 | ||
743 | trace(icom_port, "RCV_COUNT", count); | |
744 | if (count > (TTY_FLIPBUF_SIZE - tty->flip.count)) | |
745 | count = TTY_FLIPBUF_SIZE - tty->flip.count; | |
746 | ||
747 | trace(icom_port, "REAL_COUNT", count); | |
748 | ||
749 | offset = | |
750 | cpu_to_le32(icom_port->statStg->rcv[rcv_buff].leBuffer) - | |
751 | icom_port->recv_buf_pci; | |
752 | ||
753 | memcpy(tty->flip.char_buf_ptr,(unsigned char *) | |
754 | ((unsigned long)icom_port->recv_buf + offset), count); | |
755 | ||
756 | if (count > 0) { | |
757 | tty->flip.count += count - 1; | |
758 | tty->flip.char_buf_ptr += count - 1; | |
759 | ||
760 | memset(tty->flip.flag_buf_ptr, 0, count); | |
761 | tty->flip.flag_buf_ptr += count - 1; | |
762 | } | |
763 | ||
764 | icount = &icom_port->uart_port.icount; | |
765 | icount->rx += count; | |
766 | ||
767 | /* Break detect logic */ | |
768 | if ((status & SA_FLAGS_FRAME_ERROR) | |
769 | && (tty->flip.char_buf_ptr[0] == 0x00)) { | |
770 | status &= ~SA_FLAGS_FRAME_ERROR; | |
771 | status |= SA_FLAGS_BREAK_DET; | |
772 | trace(icom_port, "BREAK_DET", 0); | |
773 | } | |
774 | ||
775 | if (status & | |
776 | (SA_FLAGS_BREAK_DET | SA_FLAGS_PARITY_ERROR | | |
777 | SA_FLAGS_FRAME_ERROR | SA_FLAGS_OVERRUN)) { | |
778 | ||
779 | if (status & SA_FLAGS_BREAK_DET) | |
780 | icount->brk++; | |
781 | if (status & SA_FLAGS_PARITY_ERROR) | |
782 | icount->parity++; | |
783 | if (status & SA_FLAGS_FRAME_ERROR) | |
784 | icount->frame++; | |
785 | if (status & SA_FLAGS_OVERRUN) | |
786 | icount->overrun++; | |
787 | ||
788 | /* | |
789 | * Now check to see if character should be | |
790 | * ignored, and mask off conditions which | |
791 | * should be ignored. | |
792 | */ | |
793 | if (status & icom_port->ignore_status_mask) { | |
794 | trace(icom_port, "IGNORE_CHAR", 0); | |
795 | goto ignore_char; | |
796 | } | |
797 | ||
798 | status &= icom_port->read_status_mask; | |
799 | ||
800 | if (status & SA_FLAGS_BREAK_DET) { | |
801 | *tty->flip.flag_buf_ptr = TTY_BREAK; | |
802 | } else if (status & SA_FLAGS_PARITY_ERROR) { | |
803 | trace(icom_port, "PARITY_ERROR", 0); | |
804 | *tty->flip.flag_buf_ptr = TTY_PARITY; | |
805 | } else if (status & SA_FLAGS_FRAME_ERROR) | |
806 | *tty->flip.flag_buf_ptr = TTY_FRAME; | |
807 | ||
808 | if (status & SA_FLAGS_OVERRUN) { | |
809 | /* | |
810 | * Overrun is special, since it's | |
811 | * reported immediately, and doesn't | |
812 | * affect the current character | |
813 | */ | |
814 | if (tty->flip.count < TTY_FLIPBUF_SIZE) { | |
815 | tty->flip.count++; | |
816 | tty->flip.flag_buf_ptr++; | |
817 | tty->flip.char_buf_ptr++; | |
818 | *tty->flip.flag_buf_ptr = TTY_OVERRUN; | |
819 | } | |
820 | } | |
821 | } | |
822 | ||
823 | tty->flip.flag_buf_ptr++; | |
824 | tty->flip.char_buf_ptr++; | |
825 | tty->flip.count++; | |
826 | ignore_char: | |
827 | icom_port->statStg->rcv[rcv_buff].flags = 0; | |
828 | icom_port->statStg->rcv[rcv_buff].leLength = 0; | |
829 | icom_port->statStg->rcv[rcv_buff].WorkingLength = | |
830 | (unsigned short int) cpu_to_le16(RCV_BUFF_SZ); | |
831 | ||
832 | rcv_buff++; | |
833 | if (rcv_buff == NUM_RBUFFS) | |
834 | rcv_buff = 0; | |
835 | ||
836 | status = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].flags); | |
837 | } | |
838 | icom_port->next_rcv = rcv_buff; | |
839 | tty_flip_buffer_push(tty); | |
840 | } | |
841 | ||
842 | static void process_interrupt(u16 port_int_reg, | |
843 | struct icom_port *icom_port) | |
844 | { | |
845 | ||
846 | spin_lock(&icom_port->uart_port.lock); | |
847 | trace(icom_port, "INTERRUPT", port_int_reg); | |
848 | ||
849 | if (port_int_reg & (INT_XMIT_COMPLETED | INT_XMIT_DISABLED)) | |
850 | xmit_interrupt(port_int_reg, icom_port); | |
851 | ||
852 | if (port_int_reg & INT_RCV_COMPLETED) | |
853 | recv_interrupt(port_int_reg, icom_port); | |
854 | ||
855 | spin_unlock(&icom_port->uart_port.lock); | |
856 | } | |
857 | ||
858 | static irqreturn_t icom_interrupt(int irq, void *dev_id, | |
859 | struct pt_regs *regs) | |
860 | { | |
861 | void __iomem * int_reg; | |
862 | u32 adapter_interrupts; | |
863 | u16 port_int_reg; | |
864 | struct icom_adapter *icom_adapter; | |
865 | struct icom_port *icom_port; | |
866 | ||
867 | /* find icom_port for this interrupt */ | |
868 | icom_adapter = (struct icom_adapter *) dev_id; | |
869 | ||
870 | if ((icom_adapter->version | ADAPTER_V2) == ADAPTER_V2) { | |
871 | int_reg = icom_adapter->base_addr + 0x8024; | |
872 | ||
873 | adapter_interrupts = readl(int_reg); | |
874 | ||
875 | if (adapter_interrupts & 0x00003FFF) { | |
876 | /* port 2 interrupt, NOTE: for all ADAPTER_V2, port 2 will be active */ | |
877 | icom_port = &icom_adapter->port_info[2]; | |
878 | port_int_reg = (u16) adapter_interrupts; | |
879 | process_interrupt(port_int_reg, icom_port); | |
880 | check_modem_status(icom_port); | |
881 | } | |
882 | if (adapter_interrupts & 0x3FFF0000) { | |
883 | /* port 3 interrupt */ | |
884 | icom_port = &icom_adapter->port_info[3]; | |
885 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
886 | port_int_reg = | |
887 | (u16) (adapter_interrupts >> 16); | |
888 | process_interrupt(port_int_reg, icom_port); | |
889 | check_modem_status(icom_port); | |
890 | } | |
891 | } | |
892 | ||
893 | /* Clear out any pending interrupts */ | |
894 | writel(adapter_interrupts, int_reg); | |
895 | ||
896 | int_reg = icom_adapter->base_addr + 0x8004; | |
897 | } else { | |
898 | int_reg = icom_adapter->base_addr + 0x4004; | |
899 | } | |
900 | ||
901 | adapter_interrupts = readl(int_reg); | |
902 | ||
903 | if (adapter_interrupts & 0x00003FFF) { | |
904 | /* port 0 interrupt, NOTE: for all adapters, port 0 will be active */ | |
905 | icom_port = &icom_adapter->port_info[0]; | |
906 | port_int_reg = (u16) adapter_interrupts; | |
907 | process_interrupt(port_int_reg, icom_port); | |
908 | check_modem_status(icom_port); | |
909 | } | |
910 | if (adapter_interrupts & 0x3FFF0000) { | |
911 | /* port 1 interrupt */ | |
912 | icom_port = &icom_adapter->port_info[1]; | |
913 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
914 | port_int_reg = (u16) (adapter_interrupts >> 16); | |
915 | process_interrupt(port_int_reg, icom_port); | |
916 | check_modem_status(icom_port); | |
917 | } | |
918 | } | |
919 | ||
920 | /* Clear out any pending interrupts */ | |
921 | writel(adapter_interrupts, int_reg); | |
922 | ||
923 | /* flush the write */ | |
924 | adapter_interrupts = readl(int_reg); | |
925 | ||
926 | return IRQ_HANDLED; | |
927 | } | |
928 | ||
929 | /* | |
930 | * ------------------------------------------------------------------ | |
931 | * Begin serial-core API | |
932 | * ------------------------------------------------------------------ | |
933 | */ | |
934 | static unsigned int icom_tx_empty(struct uart_port *port) | |
935 | { | |
936 | int ret; | |
937 | unsigned long flags; | |
938 | ||
939 | spin_lock_irqsave(&port->lock, flags); | |
940 | if (cpu_to_le16(ICOM_PORT->statStg->xmit[0].flags) & | |
941 | SA_FLAGS_READY_TO_XMIT) | |
942 | ret = TIOCSER_TEMT; | |
943 | else | |
944 | ret = 0; | |
945 | ||
946 | spin_unlock_irqrestore(&port->lock, flags); | |
947 | return ret; | |
948 | } | |
949 | ||
950 | static void icom_set_mctrl(struct uart_port *port, unsigned int mctrl) | |
951 | { | |
952 | unsigned char local_osr; | |
953 | ||
954 | trace(ICOM_PORT, "SET_MODEM", 0); | |
955 | local_osr = readb(&ICOM_PORT->dram->osr); | |
956 | ||
957 | if (mctrl & TIOCM_RTS) { | |
958 | trace(ICOM_PORT, "RAISE_RTS", 0); | |
959 | local_osr |= ICOM_RTS; | |
960 | } else { | |
961 | trace(ICOM_PORT, "LOWER_RTS", 0); | |
962 | local_osr &= ~ICOM_RTS; | |
963 | } | |
964 | ||
965 | if (mctrl & TIOCM_DTR) { | |
966 | trace(ICOM_PORT, "RAISE_DTR", 0); | |
967 | local_osr |= ICOM_DTR; | |
968 | } else { | |
969 | trace(ICOM_PORT, "LOWER_DTR", 0); | |
970 | local_osr &= ~ICOM_DTR; | |
971 | } | |
972 | ||
973 | writeb(local_osr, &ICOM_PORT->dram->osr); | |
974 | } | |
975 | ||
976 | static unsigned int icom_get_mctrl(struct uart_port *port) | |
977 | { | |
978 | unsigned char status; | |
979 | unsigned int result; | |
980 | ||
981 | trace(ICOM_PORT, "GET_MODEM", 0); | |
982 | ||
983 | status = readb(&ICOM_PORT->dram->isr); | |
984 | ||
985 | result = ((status & ICOM_DCD) ? TIOCM_CAR : 0) | |
986 | | ((status & ICOM_RI) ? TIOCM_RNG : 0) | |
987 | | ((status & ICOM_DSR) ? TIOCM_DSR : 0) | |
988 | | ((status & ICOM_CTS) ? TIOCM_CTS : 0); | |
989 | return result; | |
990 | } | |
991 | ||
992 | static void icom_stop_tx(struct uart_port *port, unsigned int tty_stop) | |
993 | { | |
994 | unsigned char cmdReg; | |
995 | ||
996 | if (tty_stop) { | |
997 | trace(ICOM_PORT, "STOP", 0); | |
998 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
999 | writeb(cmdReg | CMD_HOLD_XMIT, &ICOM_PORT->dram->CmdReg); | |
1000 | } | |
1001 | } | |
1002 | ||
1003 | static void icom_start_tx(struct uart_port *port, unsigned int tty_start) | |
1004 | { | |
1005 | unsigned char cmdReg; | |
1006 | ||
1007 | trace(ICOM_PORT, "START", 0); | |
1008 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1009 | if ((cmdReg & CMD_HOLD_XMIT) == CMD_HOLD_XMIT) | |
1010 | writeb(cmdReg & ~CMD_HOLD_XMIT, | |
1011 | &ICOM_PORT->dram->CmdReg); | |
1012 | ||
1013 | icom_write(port); | |
1014 | } | |
1015 | ||
1016 | static void icom_send_xchar(struct uart_port *port, char ch) | |
1017 | { | |
1018 | unsigned char xdata; | |
1019 | int index; | |
1020 | unsigned long flags; | |
1021 | ||
1022 | trace(ICOM_PORT, "SEND_XCHAR", ch); | |
1023 | ||
1024 | /* wait .1 sec to send char */ | |
1025 | for (index = 0; index < 10; index++) { | |
1026 | spin_lock_irqsave(&port->lock, flags); | |
1027 | xdata = readb(&ICOM_PORT->dram->xchar); | |
1028 | if (xdata == 0x00) { | |
1029 | trace(ICOM_PORT, "QUICK_WRITE", 0); | |
1030 | writeb(ch, &ICOM_PORT->dram->xchar); | |
1031 | ||
1032 | /* flush write operation */ | |
1033 | xdata = readb(&ICOM_PORT->dram->xchar); | |
1034 | spin_unlock_irqrestore(&port->lock, flags); | |
1035 | break; | |
1036 | } | |
1037 | spin_unlock_irqrestore(&port->lock, flags); | |
1038 | msleep(10); | |
1039 | } | |
1040 | } | |
1041 | ||
1042 | static void icom_stop_rx(struct uart_port *port) | |
1043 | { | |
1044 | unsigned char cmdReg; | |
1045 | ||
1046 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1047 | writeb(cmdReg & ~CMD_RCV_ENABLE, &ICOM_PORT->dram->CmdReg); | |
1048 | } | |
1049 | ||
1050 | static void icom_enable_ms(struct uart_port *port) | |
1051 | { | |
1052 | /* no-op */ | |
1053 | } | |
1054 | ||
1055 | static void icom_break(struct uart_port *port, int break_state) | |
1056 | { | |
1057 | unsigned char cmdReg; | |
1058 | unsigned long flags; | |
1059 | ||
1060 | spin_lock_irqsave(&port->lock, flags); | |
1061 | trace(ICOM_PORT, "BREAK", 0); | |
1062 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1063 | if (break_state == -1) { | |
1064 | writeb(cmdReg | CMD_SND_BREAK, &ICOM_PORT->dram->CmdReg); | |
1065 | } else { | |
1066 | writeb(cmdReg & ~CMD_SND_BREAK, &ICOM_PORT->dram->CmdReg); | |
1067 | } | |
1068 | spin_unlock_irqrestore(&port->lock, flags); | |
1069 | } | |
1070 | ||
1071 | static int icom_open(struct uart_port *port) | |
1072 | { | |
1073 | int retval; | |
1074 | ||
1075 | kobject_get(&ICOM_PORT->adapter->kobj); | |
1076 | retval = startup(ICOM_PORT); | |
1077 | ||
1078 | if (retval) { | |
1079 | kobject_put(&ICOM_PORT->adapter->kobj); | |
1080 | trace(ICOM_PORT, "STARTUP_ERROR", 0); | |
1081 | return retval; | |
1082 | } | |
1083 | ||
1084 | return 0; | |
1085 | } | |
1086 | ||
1087 | static void icom_close(struct uart_port *port) | |
1088 | { | |
1089 | unsigned char cmdReg; | |
1090 | ||
1091 | trace(ICOM_PORT, "CLOSE", 0); | |
1092 | ||
1093 | /* stop receiver */ | |
1094 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1095 | writeb(cmdReg & (unsigned char) ~CMD_RCV_ENABLE, | |
1096 | &ICOM_PORT->dram->CmdReg); | |
1097 | ||
1098 | shutdown(ICOM_PORT); | |
1099 | ||
1100 | kobject_put(&ICOM_PORT->adapter->kobj); | |
1101 | } | |
1102 | ||
1103 | static void icom_set_termios(struct uart_port *port, | |
1104 | struct termios *termios, | |
1105 | struct termios *old_termios) | |
1106 | { | |
1107 | int baud; | |
1108 | unsigned cflag, iflag; | |
1109 | int bits; | |
1110 | char new_config2; | |
1111 | char new_config3 = 0; | |
1112 | char tmp_byte; | |
1113 | int index; | |
1114 | int rcv_buff, xmit_buff; | |
1115 | unsigned long offset; | |
1116 | unsigned long flags; | |
1117 | ||
1118 | spin_lock_irqsave(&port->lock, flags); | |
1119 | trace(ICOM_PORT, "CHANGE_SPEED", 0); | |
1120 | ||
1121 | cflag = termios->c_cflag; | |
1122 | iflag = termios->c_iflag; | |
1123 | ||
1124 | new_config2 = ICOM_ACFG_DRIVE1; | |
1125 | ||
1126 | /* byte size and parity */ | |
1127 | switch (cflag & CSIZE) { | |
1128 | case CS5: /* 5 bits/char */ | |
1129 | new_config2 |= ICOM_ACFG_5BPC; | |
1130 | bits = 7; | |
1131 | break; | |
1132 | case CS6: /* 6 bits/char */ | |
1133 | new_config2 |= ICOM_ACFG_6BPC; | |
1134 | bits = 8; | |
1135 | break; | |
1136 | case CS7: /* 7 bits/char */ | |
1137 | new_config2 |= ICOM_ACFG_7BPC; | |
1138 | bits = 9; | |
1139 | break; | |
1140 | case CS8: /* 8 bits/char */ | |
1141 | new_config2 |= ICOM_ACFG_8BPC; | |
1142 | bits = 10; | |
1143 | break; | |
1144 | default: | |
1145 | bits = 10; | |
1146 | break; | |
1147 | } | |
1148 | if (cflag & CSTOPB) { | |
1149 | /* 2 stop bits */ | |
1150 | new_config2 |= ICOM_ACFG_2STOP_BIT; | |
1151 | bits++; | |
1152 | } | |
1153 | if (cflag & PARENB) { | |
1154 | /* parity bit enabled */ | |
1155 | new_config2 |= ICOM_ACFG_PARITY_ENAB; | |
1156 | trace(ICOM_PORT, "PARENB", 0); | |
1157 | bits++; | |
1158 | } | |
1159 | if (cflag & PARODD) { | |
1160 | /* odd parity */ | |
1161 | new_config2 |= ICOM_ACFG_PARITY_ODD; | |
1162 | trace(ICOM_PORT, "PARODD", 0); | |
1163 | } | |
1164 | ||
1165 | /* Determine divisor based on baud rate */ | |
1166 | baud = uart_get_baud_rate(port, termios, old_termios, | |
1167 | icom_acfg_baud[0], | |
1168 | icom_acfg_baud[BAUD_TABLE_LIMIT]); | |
1169 | if (!baud) | |
1170 | baud = 9600; /* B0 transition handled in rs_set_termios */ | |
1171 | ||
1172 | for (index = 0; index < BAUD_TABLE_LIMIT; index++) { | |
1173 | if (icom_acfg_baud[index] == baud) { | |
1174 | new_config3 = index; | |
1175 | break; | |
1176 | } | |
1177 | } | |
1178 | ||
1179 | uart_update_timeout(port, cflag, baud); | |
1180 | ||
1181 | /* CTS flow control flag and modem status interrupts */ | |
1182 | tmp_byte = readb(&(ICOM_PORT->dram->HDLCConfigReg)); | |
1183 | if (cflag & CRTSCTS) | |
1184 | tmp_byte |= HDLC_HDW_FLOW; | |
1185 | else | |
1186 | tmp_byte &= ~HDLC_HDW_FLOW; | |
1187 | writeb(tmp_byte, &(ICOM_PORT->dram->HDLCConfigReg)); | |
1188 | ||
1189 | /* | |
1190 | * Set up parity check flag | |
1191 | */ | |
1192 | ICOM_PORT->read_status_mask = SA_FLAGS_OVERRUN | SA_FL_RCV_DONE; | |
1193 | if (iflag & INPCK) | |
1194 | ICOM_PORT->read_status_mask |= | |
1195 | SA_FLAGS_FRAME_ERROR | SA_FLAGS_PARITY_ERROR; | |
1196 | ||
1197 | if ((iflag & BRKINT) || (iflag & PARMRK)) | |
1198 | ICOM_PORT->read_status_mask |= SA_FLAGS_BREAK_DET; | |
1199 | ||
1200 | /* | |
1201 | * Characters to ignore | |
1202 | */ | |
1203 | ICOM_PORT->ignore_status_mask = 0; | |
1204 | if (iflag & IGNPAR) | |
1205 | ICOM_PORT->ignore_status_mask |= | |
1206 | SA_FLAGS_PARITY_ERROR | SA_FLAGS_FRAME_ERROR; | |
1207 | if (iflag & IGNBRK) { | |
1208 | ICOM_PORT->ignore_status_mask |= SA_FLAGS_BREAK_DET; | |
1209 | /* | |
1210 | * If we're ignore parity and break indicators, ignore | |
1211 | * overruns too. (For real raw support). | |
1212 | */ | |
1213 | if (iflag & IGNPAR) | |
1214 | ICOM_PORT->ignore_status_mask |= SA_FLAGS_OVERRUN; | |
1215 | } | |
1216 | ||
1217 | /* | |
1218 | * !!! ignore all characters if CREAD is not set | |
1219 | */ | |
1220 | if ((cflag & CREAD) == 0) | |
1221 | ICOM_PORT->ignore_status_mask |= SA_FL_RCV_DONE; | |
1222 | ||
1223 | /* Turn off Receiver to prepare for reset */ | |
1224 | writeb(CMD_RCV_DISABLE, &ICOM_PORT->dram->CmdReg); | |
1225 | ||
1226 | for (index = 0; index < 10; index++) { | |
1227 | if (readb(&ICOM_PORT->dram->PrevCmdReg) == 0x00) { | |
1228 | break; | |
1229 | } | |
1230 | } | |
1231 | ||
1232 | /* clear all current buffers of data */ | |
1233 | for (rcv_buff = 0; rcv_buff < NUM_RBUFFS; rcv_buff++) { | |
1234 | ICOM_PORT->statStg->rcv[rcv_buff].flags = 0; | |
1235 | ICOM_PORT->statStg->rcv[rcv_buff].leLength = 0; | |
1236 | ICOM_PORT->statStg->rcv[rcv_buff].WorkingLength = | |
1237 | (unsigned short int) cpu_to_le16(RCV_BUFF_SZ); | |
1238 | } | |
1239 | ||
1240 | for (xmit_buff = 0; xmit_buff < NUM_XBUFFS; xmit_buff++) { | |
1241 | ICOM_PORT->statStg->xmit[xmit_buff].flags = 0; | |
1242 | } | |
1243 | ||
1244 | /* activate changes and start xmit and receiver here */ | |
1245 | /* Enable the receiver */ | |
1246 | writeb(new_config3, &(ICOM_PORT->dram->async_config3)); | |
1247 | writeb(new_config2, &(ICOM_PORT->dram->async_config2)); | |
1248 | tmp_byte = readb(&(ICOM_PORT->dram->HDLCConfigReg)); | |
1249 | tmp_byte |= HDLC_PPP_PURE_ASYNC | HDLC_FF_FILL; | |
1250 | writeb(tmp_byte, &(ICOM_PORT->dram->HDLCConfigReg)); | |
1251 | writeb(0x04, &(ICOM_PORT->dram->FlagFillIdleTimer)); /* 0.5 seconds */ | |
1252 | writeb(0xFF, &(ICOM_PORT->dram->ier)); /* enable modem signal interrupts */ | |
1253 | ||
1254 | /* reset processor */ | |
1255 | writeb(CMD_RESTART, &ICOM_PORT->dram->CmdReg); | |
1256 | ||
1257 | for (index = 0; index < 10; index++) { | |
1258 | if (readb(&ICOM_PORT->dram->CmdReg) == 0x00) { | |
1259 | break; | |
1260 | } | |
1261 | } | |
1262 | ||
1263 | /* Enable Transmitter and Reciever */ | |
1264 | offset = | |
1265 | (unsigned long) &ICOM_PORT->statStg->rcv[0] - | |
1266 | (unsigned long) ICOM_PORT->statStg; | |
1267 | writel(ICOM_PORT->statStg_pci + offset, | |
1268 | &ICOM_PORT->dram->RcvStatusAddr); | |
1269 | ICOM_PORT->next_rcv = 0; | |
1270 | ICOM_PORT->put_length = 0; | |
1271 | *ICOM_PORT->xmitRestart = 0; | |
1272 | writel(ICOM_PORT->xmitRestart_pci, | |
1273 | &ICOM_PORT->dram->XmitStatusAddr); | |
1274 | trace(ICOM_PORT, "XR_ENAB", 0); | |
1275 | writeb(CMD_XMIT_RCV_ENABLE, &ICOM_PORT->dram->CmdReg); | |
1276 | ||
1277 | spin_unlock_irqrestore(&port->lock, flags); | |
1278 | } | |
1279 | ||
1280 | static const char *icom_type(struct uart_port *port) | |
1281 | { | |
1282 | return "icom"; | |
1283 | } | |
1284 | ||
1285 | static void icom_release_port(struct uart_port *port) | |
1286 | { | |
1287 | } | |
1288 | ||
1289 | static int icom_request_port(struct uart_port *port) | |
1290 | { | |
1291 | return 0; | |
1292 | } | |
1293 | ||
1294 | static void icom_config_port(struct uart_port *port, int flags) | |
1295 | { | |
1296 | port->type = PORT_ICOM; | |
1297 | } | |
1298 | ||
1299 | static struct uart_ops icom_ops = { | |
1300 | .tx_empty = icom_tx_empty, | |
1301 | .set_mctrl = icom_set_mctrl, | |
1302 | .get_mctrl = icom_get_mctrl, | |
1303 | .stop_tx = icom_stop_tx, | |
1304 | .start_tx = icom_start_tx, | |
1305 | .send_xchar = icom_send_xchar, | |
1306 | .stop_rx = icom_stop_rx, | |
1307 | .enable_ms = icom_enable_ms, | |
1308 | .break_ctl = icom_break, | |
1309 | .startup = icom_open, | |
1310 | .shutdown = icom_close, | |
1311 | .set_termios = icom_set_termios, | |
1312 | .type = icom_type, | |
1313 | .release_port = icom_release_port, | |
1314 | .request_port = icom_request_port, | |
1315 | .config_port = icom_config_port, | |
1316 | }; | |
1317 | ||
1318 | #define ICOM_CONSOLE NULL | |
1319 | ||
1320 | static struct uart_driver icom_uart_driver = { | |
1321 | .owner = THIS_MODULE, | |
1322 | .driver_name = ICOM_DRIVER_NAME, | |
1323 | .dev_name = "ttyA", | |
1324 | .major = ICOM_MAJOR, | |
1325 | .minor = ICOM_MINOR_START, | |
1326 | .nr = NR_PORTS, | |
1327 | .cons = ICOM_CONSOLE, | |
1328 | }; | |
1329 | ||
1330 | static int __devinit icom_init_ports(struct icom_adapter *icom_adapter) | |
1331 | { | |
1332 | u32 subsystem_id = icom_adapter->subsystem_id; | |
1333 | int retval = 0; | |
1334 | int i; | |
1335 | struct icom_port *icom_port; | |
1336 | ||
1337 | if (icom_adapter->version == ADAPTER_V1) { | |
1338 | icom_adapter->numb_ports = 2; | |
1339 | ||
1340 | for (i = 0; i < 2; i++) { | |
1341 | icom_port = &icom_adapter->port_info[i]; | |
1342 | icom_port->port = i; | |
1343 | icom_port->status = ICOM_PORT_ACTIVE; | |
1344 | icom_port->imbed_modem = ICOM_UNKNOWN; | |
1345 | } | |
1346 | } else { | |
1347 | if (subsystem_id == PCI_DEVICE_ID_IBM_ICOM_FOUR_PORT_MODEL) { | |
1348 | icom_adapter->numb_ports = 4; | |
1349 | ||
1350 | for (i = 0; i < 4; i++) { | |
1351 | icom_port = &icom_adapter->port_info[i]; | |
1352 | ||
1353 | icom_port->port = i; | |
1354 | icom_port->status = ICOM_PORT_ACTIVE; | |
1355 | icom_port->imbed_modem = ICOM_IMBED_MODEM; | |
1356 | } | |
1357 | } else { | |
1358 | icom_adapter->numb_ports = 4; | |
1359 | ||
1360 | icom_adapter->port_info[0].port = 0; | |
1361 | icom_adapter->port_info[0].status = ICOM_PORT_ACTIVE; | |
1362 | ||
1363 | if (subsystem_id == | |
1364 | PCI_DEVICE_ID_IBM_ICOM_V2_ONE_PORT_RVX_ONE_PORT_MDM) { | |
1365 | icom_adapter->port_info[0].imbed_modem = ICOM_IMBED_MODEM; | |
1366 | } else { | |
1367 | icom_adapter->port_info[0].imbed_modem = ICOM_RVX; | |
1368 | } | |
1369 | ||
1370 | icom_adapter->port_info[1].status = ICOM_PORT_OFF; | |
1371 | ||
1372 | icom_adapter->port_info[2].port = 2; | |
1373 | icom_adapter->port_info[2].status = ICOM_PORT_ACTIVE; | |
1374 | icom_adapter->port_info[2].imbed_modem = ICOM_RVX; | |
1375 | icom_adapter->port_info[3].status = ICOM_PORT_OFF; | |
1376 | } | |
1377 | } | |
1378 | ||
1379 | return retval; | |
1380 | } | |
1381 | ||
1382 | static void icom_port_active(struct icom_port *icom_port, struct icom_adapter *icom_adapter, int port_num) | |
1383 | { | |
1384 | if (icom_adapter->version == ADAPTER_V1) { | |
1385 | icom_port->global_reg = icom_adapter->base_addr + 0x4000; | |
1386 | icom_port->int_reg = icom_adapter->base_addr + | |
1387 | 0x4004 + 2 - 2 * port_num; | |
1388 | } else { | |
1389 | icom_port->global_reg = icom_adapter->base_addr + 0x8000; | |
1390 | if (icom_port->port < 2) | |
1391 | icom_port->int_reg = icom_adapter->base_addr + | |
1392 | 0x8004 + 2 - 2 * icom_port->port; | |
1393 | else | |
1394 | icom_port->int_reg = icom_adapter->base_addr + | |
1395 | 0x8024 + 2 - 2 * (icom_port->port - 2); | |
1396 | } | |
1397 | } | |
1398 | static int __init icom_load_ports(struct icom_adapter *icom_adapter) | |
1399 | { | |
1400 | struct icom_port *icom_port; | |
1401 | int port_num; | |
1402 | int retval; | |
1403 | ||
1404 | for (port_num = 0; port_num < icom_adapter->numb_ports; port_num++) { | |
1405 | ||
1406 | icom_port = &icom_adapter->port_info[port_num]; | |
1407 | ||
1408 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
1409 | icom_port_active(icom_port, icom_adapter, port_num); | |
1410 | icom_port->dram = icom_adapter->base_addr + | |
1411 | 0x2000 * icom_port->port; | |
1412 | ||
1413 | icom_port->adapter = icom_adapter; | |
1414 | ||
1415 | /* get port memory */ | |
1416 | if ((retval = get_port_memory(icom_port)) != 0) { | |
1417 | dev_err(&icom_port->adapter->pci_dev->dev, | |
1418 | "Memory allocation for port FAILED\n"); | |
1419 | } | |
1420 | } | |
1421 | } | |
1422 | return 0; | |
1423 | } | |
1424 | ||
1425 | static int __devinit icom_alloc_adapter(struct icom_adapter | |
1426 | **icom_adapter_ref) | |
1427 | { | |
1428 | int adapter_count = 0; | |
1429 | struct icom_adapter *icom_adapter; | |
1430 | struct icom_adapter *cur_adapter_entry; | |
1431 | struct list_head *tmp; | |
1432 | ||
1433 | icom_adapter = (struct icom_adapter *) | |
1434 | kmalloc(sizeof(struct icom_adapter), GFP_KERNEL); | |
1435 | ||
1436 | if (!icom_adapter) { | |
1437 | return -ENOMEM; | |
1438 | } | |
1439 | ||
1440 | memset(icom_adapter, 0, sizeof(struct icom_adapter)); | |
1441 | ||
1442 | list_for_each(tmp, &icom_adapter_head) { | |
1443 | cur_adapter_entry = | |
1444 | list_entry(tmp, struct icom_adapter, | |
1445 | icom_adapter_entry); | |
1446 | if (cur_adapter_entry->index != adapter_count) { | |
1447 | break; | |
1448 | } | |
1449 | adapter_count++; | |
1450 | } | |
1451 | ||
1452 | icom_adapter->index = adapter_count; | |
1453 | list_add_tail(&icom_adapter->icom_adapter_entry, tmp); | |
1454 | ||
1455 | *icom_adapter_ref = icom_adapter; | |
1456 | return 0; | |
1457 | } | |
1458 | ||
1459 | static void icom_free_adapter(struct icom_adapter *icom_adapter) | |
1460 | { | |
1461 | list_del(&icom_adapter->icom_adapter_entry); | |
1462 | kfree(icom_adapter); | |
1463 | } | |
1464 | ||
1465 | static void icom_remove_adapter(struct icom_adapter *icom_adapter) | |
1466 | { | |
1467 | struct icom_port *icom_port; | |
1468 | int index; | |
1469 | ||
1470 | for (index = 0; index < icom_adapter->numb_ports; index++) { | |
1471 | icom_port = &icom_adapter->port_info[index]; | |
1472 | ||
1473 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
1474 | dev_info(&icom_adapter->pci_dev->dev, | |
1475 | "Device removed\n"); | |
1476 | ||
1477 | uart_remove_one_port(&icom_uart_driver, | |
1478 | &icom_port->uart_port); | |
1479 | ||
1480 | /* be sure that DTR and RTS are dropped */ | |
1481 | writeb(0x00, &icom_port->dram->osr); | |
1482 | ||
1483 | /* Wait 0.1 Sec for simple Init to complete */ | |
1484 | msleep(100); | |
1485 | ||
1486 | /* Stop proccessor */ | |
1487 | stop_processor(icom_port); | |
1488 | ||
1489 | free_port_memory(icom_port); | |
1490 | } | |
1491 | } | |
1492 | ||
1493 | free_irq(icom_adapter->irq_number, (void *) icom_adapter); | |
1494 | iounmap(icom_adapter->base_addr); | |
1495 | icom_free_adapter(icom_adapter); | |
1496 | pci_release_regions(icom_adapter->pci_dev); | |
1497 | } | |
1498 | ||
1499 | static void icom_kobj_release(struct kobject *kobj) | |
1500 | { | |
1501 | struct icom_adapter *icom_adapter; | |
1502 | ||
1503 | icom_adapter = to_icom_adapter(kobj); | |
1504 | icom_remove_adapter(icom_adapter); | |
1505 | } | |
1506 | ||
1507 | static struct kobj_type icom_kobj_type = { | |
1508 | .release = icom_kobj_release, | |
1509 | }; | |
1510 | ||
1511 | static int __devinit icom_probe(struct pci_dev *dev, | |
1512 | const struct pci_device_id *ent) | |
1513 | { | |
1514 | int index; | |
1515 | unsigned int command_reg; | |
1516 | int retval; | |
1517 | struct icom_adapter *icom_adapter; | |
1518 | struct icom_port *icom_port; | |
1519 | ||
1520 | retval = pci_enable_device(dev); | |
1521 | if (retval) { | |
1522 | dev_err(&dev->dev, "Device enable FAILED\n"); | |
1523 | return retval; | |
1524 | } | |
1525 | ||
1526 | if ( (retval = pci_request_regions(dev, "icom"))) { | |
1527 | dev_err(&dev->dev, "pci_request_region FAILED\n"); | |
1528 | pci_disable_device(dev); | |
1529 | return retval; | |
1530 | } | |
1531 | ||
1532 | pci_set_master(dev); | |
1533 | ||
1534 | if ( (retval = pci_read_config_dword(dev, PCI_COMMAND, &command_reg))) { | |
1535 | dev_err(&dev->dev, "PCI Config read FAILED\n"); | |
1536 | return retval; | |
1537 | } | |
1538 | ||
1539 | pci_write_config_dword(dev, PCI_COMMAND, | |
1540 | command_reg | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | |
1541 | | PCI_COMMAND_PARITY | PCI_COMMAND_SERR); | |
1542 | ||
1543 | if (ent->driver_data == ADAPTER_V1) { | |
1544 | pci_write_config_dword(dev, 0x44, 0x8300830A); | |
1545 | } else { | |
1546 | pci_write_config_dword(dev, 0x44, 0x42004200); | |
1547 | pci_write_config_dword(dev, 0x48, 0x42004200); | |
1548 | } | |
1549 | ||
1550 | ||
1551 | retval = icom_alloc_adapter(&icom_adapter); | |
1552 | if (retval) { | |
1553 | dev_err(&dev->dev, "icom_alloc_adapter FAILED\n"); | |
1554 | retval = -EIO; | |
1555 | goto probe_exit0; | |
1556 | } | |
1557 | ||
1558 | icom_adapter->base_addr_pci = pci_resource_start(dev, 0); | |
1559 | icom_adapter->irq_number = dev->irq; | |
1560 | icom_adapter->pci_dev = dev; | |
1561 | icom_adapter->version = ent->driver_data; | |
1562 | icom_adapter->subsystem_id = ent->subdevice; | |
1563 | ||
1564 | ||
1565 | retval = icom_init_ports(icom_adapter); | |
1566 | if (retval) { | |
1567 | dev_err(&dev->dev, "Port configuration failed\n"); | |
1568 | goto probe_exit1; | |
1569 | } | |
1570 | ||
1571 | icom_adapter->base_addr = ioremap(icom_adapter->base_addr_pci, | |
1572 | pci_resource_len(dev, 0)); | |
1573 | ||
1574 | if (!icom_adapter->base_addr) | |
1575 | goto probe_exit1; | |
1576 | ||
1577 | /* save off irq and request irq line */ | |
1578 | if ( (retval = request_irq(dev->irq, icom_interrupt, | |
1579 | SA_INTERRUPT | SA_SHIRQ, ICOM_DRIVER_NAME, | |
1580 | (void *) icom_adapter))) { | |
1581 | goto probe_exit2; | |
1582 | } | |
1583 | ||
1584 | retval = icom_load_ports(icom_adapter); | |
1585 | ||
1586 | for (index = 0; index < icom_adapter->numb_ports; index++) { | |
1587 | icom_port = &icom_adapter->port_info[index]; | |
1588 | ||
1589 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
1590 | icom_port->uart_port.irq = icom_port->adapter->irq_number; | |
1591 | icom_port->uart_port.type = PORT_ICOM; | |
1592 | icom_port->uart_port.iotype = UPIO_MEM; | |
1593 | icom_port->uart_port.membase = | |
1594 | (char *) icom_adapter->base_addr_pci; | |
1595 | icom_port->uart_port.fifosize = 16; | |
1596 | icom_port->uart_port.ops = &icom_ops; | |
1597 | icom_port->uart_port.line = | |
1598 | icom_port->port + icom_adapter->index * 4; | |
1599 | if (uart_add_one_port (&icom_uart_driver, &icom_port->uart_port)) { | |
1600 | icom_port->status = ICOM_PORT_OFF; | |
1601 | dev_err(&dev->dev, "Device add failed\n"); | |
1602 | } else | |
1603 | dev_info(&dev->dev, "Device added\n"); | |
1604 | } | |
1605 | } | |
1606 | ||
1607 | kobject_init(&icom_adapter->kobj); | |
1608 | icom_adapter->kobj.ktype = &icom_kobj_type; | |
1609 | return 0; | |
1610 | ||
1611 | probe_exit2: | |
1612 | iounmap(icom_adapter->base_addr); | |
1613 | probe_exit1: | |
1614 | icom_free_adapter(icom_adapter); | |
1615 | ||
1616 | probe_exit0: | |
1617 | pci_release_regions(dev); | |
1618 | pci_disable_device(dev); | |
1619 | ||
1620 | return retval; | |
1621 | ||
1622 | ||
1623 | } | |
1624 | ||
1625 | static void __devexit icom_remove(struct pci_dev *dev) | |
1626 | { | |
1627 | struct icom_adapter *icom_adapter; | |
1628 | struct list_head *tmp; | |
1629 | ||
1630 | list_for_each(tmp, &icom_adapter_head) { | |
1631 | icom_adapter = list_entry(tmp, struct icom_adapter, | |
1632 | icom_adapter_entry); | |
1633 | if (icom_adapter->pci_dev == dev) { | |
1634 | kobject_put(&icom_adapter->kobj); | |
1635 | return; | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | dev_err(&dev->dev, "Unable to find device to remove\n"); | |
1640 | } | |
1641 | ||
1642 | static struct pci_driver icom_pci_driver = { | |
1643 | .name = ICOM_DRIVER_NAME, | |
1644 | .id_table = icom_pci_table, | |
1645 | .probe = icom_probe, | |
1646 | .remove = __devexit_p(icom_remove), | |
1647 | }; | |
1648 | ||
1649 | static int __init icom_init(void) | |
1650 | { | |
1651 | int ret; | |
1652 | ||
1653 | spin_lock_init(&icom_lock); | |
1654 | ||
1655 | ret = uart_register_driver(&icom_uart_driver); | |
1656 | if (ret) | |
1657 | return ret; | |
1658 | ||
1659 | ret = pci_register_driver(&icom_pci_driver); | |
1660 | ||
1661 | if (ret < 0) | |
1662 | uart_unregister_driver(&icom_uart_driver); | |
1663 | ||
1664 | return ret; | |
1665 | } | |
1666 | ||
1667 | static void __exit icom_exit(void) | |
1668 | { | |
1669 | pci_unregister_driver(&icom_pci_driver); | |
1670 | uart_unregister_driver(&icom_uart_driver); | |
1671 | } | |
1672 | ||
1673 | module_init(icom_init); | |
1674 | module_exit(icom_exit); | |
1675 | ||
1676 | #ifdef ICOM_TRACE | |
1677 | static inline void trace(struct icom_port *icom_port, char *trace_pt, | |
1678 | unsigned long trace_data) | |
1679 | { | |
1680 | dev_info(&icom_port->adapter->pci_dev->dev, ":%d:%s - %lx\n", | |
1681 | icom_port->port, trace_pt, trace_data); | |
1682 | } | |
1683 | #endif | |
1684 | ||
1685 | MODULE_AUTHOR("Michael Anderson <mjanders@us.ibm.com>"); | |
1686 | MODULE_DESCRIPTION("IBM iSeries Serial IOA driver"); | |
1687 | MODULE_SUPPORTED_DEVICE | |
1688 | ("IBM iSeries 2745, 2771, 2772, 2742, 2793 and 2805 Communications adapters"); | |
1689 | MODULE_LICENSE("GPL"); | |
1690 |