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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> | |
1da177e4 LT |
27 | #include <linux/kernel.h> |
28 | #include <linux/errno.h> | |
29 | #include <linux/signal.h> | |
1da177e4 LT |
30 | #include <linux/timer.h> |
31 | #include <linux/interrupt.h> | |
32 | #include <linux/tty.h> | |
33 | #include <linux/termios.h> | |
34 | #include <linux/fs.h> | |
35 | #include <linux/tty_flip.h> | |
36 | #include <linux/serial.h> | |
37 | #include <linux/serial_reg.h> | |
38 | #include <linux/major.h> | |
39 | #include <linux/string.h> | |
40 | #include <linux/fcntl.h> | |
41 | #include <linux/ptrace.h> | |
42 | #include <linux/ioport.h> | |
43 | #include <linux/mm.h> | |
44 | #include <linux/slab.h> | |
45 | #include <linux/init.h> | |
46 | #include <linux/delay.h> | |
47 | #include <linux/pci.h> | |
48 | #include <linux/vmalloc.h> | |
49 | #include <linux/smp.h> | |
50 | #include <linux/smp_lock.h> | |
51 | #include <linux/spinlock.h> | |
52 | #include <linux/kobject.h> | |
53 | #include <linux/firmware.h> | |
54 | #include <linux/bitops.h> | |
55 | ||
56 | #include <asm/system.h> | |
1da177e4 LT |
57 | #include <asm/io.h> |
58 | #include <asm/irq.h> | |
59 | #include <asm/uaccess.h> | |
60 | ||
61 | #include "icom.h" | |
62 | ||
63 | /*#define ICOM_TRACE enable port trace capabilities */ | |
64 | ||
65 | #define ICOM_DRIVER_NAME "icom" | |
66 | #define ICOM_VERSION_STR "1.3.1" | |
67 | #define NR_PORTS 128 | |
68 | #define ICOM_PORT ((struct icom_port *)port) | |
69 | #define to_icom_adapter(d) container_of(d, struct icom_adapter, kobj) | |
70 | ||
71 | static const struct pci_device_id icom_pci_table[] = { | |
72 | { | |
73 | .vendor = PCI_VENDOR_ID_IBM, | |
74 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_1, | |
75 | .subvendor = PCI_ANY_ID, | |
76 | .subdevice = PCI_ANY_ID, | |
77 | .driver_data = ADAPTER_V1, | |
78 | }, | |
79 | { | |
80 | .vendor = PCI_VENDOR_ID_IBM, | |
81 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_2, | |
82 | .subvendor = PCI_VENDOR_ID_IBM, | |
83 | .subdevice = PCI_DEVICE_ID_IBM_ICOM_V2_TWO_PORTS_RVX, | |
84 | .driver_data = ADAPTER_V2, | |
85 | }, | |
86 | { | |
87 | .vendor = PCI_VENDOR_ID_IBM, | |
88 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_2, | |
89 | .subvendor = PCI_VENDOR_ID_IBM, | |
90 | .subdevice = PCI_DEVICE_ID_IBM_ICOM_V2_ONE_PORT_RVX_ONE_PORT_MDM, | |
91 | .driver_data = ADAPTER_V2, | |
92 | }, | |
93 | { | |
94 | .vendor = PCI_VENDOR_ID_IBM, | |
95 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_2, | |
96 | .subvendor = PCI_VENDOR_ID_IBM, | |
97 | .subdevice = PCI_DEVICE_ID_IBM_ICOM_FOUR_PORT_MODEL, | |
98 | .driver_data = ADAPTER_V2, | |
99 | }, | |
100 | {} | |
101 | }; | |
102 | ||
103 | struct lookup_proc_table start_proc[4] = { | |
104 | {NULL, ICOM_CONTROL_START_A}, | |
105 | {NULL, ICOM_CONTROL_START_B}, | |
106 | {NULL, ICOM_CONTROL_START_C}, | |
107 | {NULL, ICOM_CONTROL_START_D} | |
108 | }; | |
109 | ||
110 | ||
111 | struct lookup_proc_table stop_proc[4] = { | |
112 | {NULL, ICOM_CONTROL_STOP_A}, | |
113 | {NULL, ICOM_CONTROL_STOP_B}, | |
114 | {NULL, ICOM_CONTROL_STOP_C}, | |
115 | {NULL, ICOM_CONTROL_STOP_D} | |
116 | }; | |
117 | ||
118 | struct lookup_int_table int_mask_tbl[4] = { | |
119 | {NULL, ICOM_INT_MASK_PRC_A}, | |
120 | {NULL, ICOM_INT_MASK_PRC_B}, | |
121 | {NULL, ICOM_INT_MASK_PRC_C}, | |
122 | {NULL, ICOM_INT_MASK_PRC_D}, | |
123 | }; | |
124 | ||
125 | ||
126 | MODULE_DEVICE_TABLE(pci, icom_pci_table); | |
127 | ||
128 | static LIST_HEAD(icom_adapter_head); | |
129 | ||
130 | /* spinlock for adapter initialization and changing adapter operations */ | |
131 | static spinlock_t icom_lock; | |
132 | ||
133 | #ifdef ICOM_TRACE | |
134 | static inline void trace(struct icom_port *, char *, unsigned long) {}; | |
135 | #else | |
136 | static inline void trace(struct icom_port *icom_port, char *trace_pt, unsigned long trace_data) {}; | |
137 | #endif | |
138 | ||
139 | static void free_port_memory(struct icom_port *icom_port) | |
140 | { | |
141 | struct pci_dev *dev = icom_port->adapter->pci_dev; | |
142 | ||
143 | trace(icom_port, "RET_PORT_MEM", 0); | |
144 | if (icom_port->recv_buf) { | |
145 | pci_free_consistent(dev, 4096, icom_port->recv_buf, | |
146 | icom_port->recv_buf_pci); | |
147 | icom_port->recv_buf = NULL; | |
148 | } | |
149 | if (icom_port->xmit_buf) { | |
150 | pci_free_consistent(dev, 4096, icom_port->xmit_buf, | |
151 | icom_port->xmit_buf_pci); | |
152 | icom_port->xmit_buf = NULL; | |
153 | } | |
154 | if (icom_port->statStg) { | |
155 | pci_free_consistent(dev, 4096, icom_port->statStg, | |
156 | icom_port->statStg_pci); | |
157 | icom_port->statStg = NULL; | |
158 | } | |
159 | ||
160 | if (icom_port->xmitRestart) { | |
161 | pci_free_consistent(dev, 4096, icom_port->xmitRestart, | |
162 | icom_port->xmitRestart_pci); | |
163 | icom_port->xmitRestart = NULL; | |
164 | } | |
165 | } | |
166 | ||
167 | static int __init get_port_memory(struct icom_port *icom_port) | |
168 | { | |
169 | int index; | |
170 | unsigned long stgAddr; | |
171 | unsigned long startStgAddr; | |
172 | unsigned long offset; | |
173 | struct pci_dev *dev = icom_port->adapter->pci_dev; | |
174 | ||
175 | icom_port->xmit_buf = | |
176 | pci_alloc_consistent(dev, 4096, &icom_port->xmit_buf_pci); | |
177 | if (!icom_port->xmit_buf) { | |
178 | dev_err(&dev->dev, "Can not allocate Transmit buffer\n"); | |
179 | return -ENOMEM; | |
180 | } | |
181 | ||
182 | trace(icom_port, "GET_PORT_MEM", | |
183 | (unsigned long) icom_port->xmit_buf); | |
184 | ||
185 | icom_port->recv_buf = | |
186 | pci_alloc_consistent(dev, 4096, &icom_port->recv_buf_pci); | |
187 | if (!icom_port->recv_buf) { | |
188 | dev_err(&dev->dev, "Can not allocate Receive buffer\n"); | |
189 | free_port_memory(icom_port); | |
190 | return -ENOMEM; | |
191 | } | |
192 | trace(icom_port, "GET_PORT_MEM", | |
193 | (unsigned long) icom_port->recv_buf); | |
194 | ||
195 | icom_port->statStg = | |
196 | pci_alloc_consistent(dev, 4096, &icom_port->statStg_pci); | |
197 | if (!icom_port->statStg) { | |
198 | dev_err(&dev->dev, "Can not allocate Status buffer\n"); | |
199 | free_port_memory(icom_port); | |
200 | return -ENOMEM; | |
201 | } | |
202 | trace(icom_port, "GET_PORT_MEM", | |
203 | (unsigned long) icom_port->statStg); | |
204 | ||
205 | icom_port->xmitRestart = | |
206 | pci_alloc_consistent(dev, 4096, &icom_port->xmitRestart_pci); | |
207 | if (!icom_port->xmitRestart) { | |
208 | dev_err(&dev->dev, | |
209 | "Can not allocate xmit Restart buffer\n"); | |
210 | free_port_memory(icom_port); | |
211 | return -ENOMEM; | |
212 | } | |
213 | ||
214 | memset(icom_port->statStg, 0, 4096); | |
215 | ||
216 | /* FODs: Frame Out Descriptor Queue, this is a FIFO queue that | |
217 | indicates that frames are to be transmitted | |
218 | */ | |
219 | ||
220 | stgAddr = (unsigned long) icom_port->statStg; | |
221 | for (index = 0; index < NUM_XBUFFS; index++) { | |
222 | trace(icom_port, "FOD_ADDR", stgAddr); | |
223 | stgAddr = stgAddr + sizeof(icom_port->statStg->xmit[0]); | |
224 | if (index < (NUM_XBUFFS - 1)) { | |
225 | memset(&icom_port->statStg->xmit[index], 0, sizeof(struct xmit_status_area)); | |
226 | icom_port->statStg->xmit[index].leLengthASD = | |
227 | (unsigned short int) cpu_to_le16(XMIT_BUFF_SZ); | |
228 | trace(icom_port, "FOD_ADDR", stgAddr); | |
229 | trace(icom_port, "FOD_XBUFF", | |
230 | (unsigned long) icom_port->xmit_buf); | |
231 | icom_port->statStg->xmit[index].leBuffer = | |
232 | cpu_to_le32(icom_port->xmit_buf_pci); | |
233 | } else if (index == (NUM_XBUFFS - 1)) { | |
234 | memset(&icom_port->statStg->xmit[index], 0, sizeof(struct xmit_status_area)); | |
235 | icom_port->statStg->xmit[index].leLengthASD = | |
236 | (unsigned short int) cpu_to_le16(XMIT_BUFF_SZ); | |
237 | trace(icom_port, "FOD_XBUFF", | |
238 | (unsigned long) icom_port->xmit_buf); | |
239 | icom_port->statStg->xmit[index].leBuffer = | |
240 | cpu_to_le32(icom_port->xmit_buf_pci); | |
241 | } else { | |
242 | memset(&icom_port->statStg->xmit[index], 0, sizeof(struct xmit_status_area)); | |
243 | } | |
244 | } | |
245 | /* FIDs */ | |
246 | startStgAddr = stgAddr; | |
247 | ||
248 | /* fill in every entry, even if no buffer */ | |
249 | for (index = 0; index < NUM_RBUFFS; index++) { | |
250 | trace(icom_port, "FID_ADDR", stgAddr); | |
251 | stgAddr = stgAddr + sizeof(icom_port->statStg->rcv[0]); | |
252 | icom_port->statStg->rcv[index].leLength = 0; | |
253 | icom_port->statStg->rcv[index].WorkingLength = | |
254 | (unsigned short int) cpu_to_le16(RCV_BUFF_SZ); | |
255 | if (index < (NUM_RBUFFS - 1) ) { | |
256 | offset = stgAddr - (unsigned long) icom_port->statStg; | |
257 | icom_port->statStg->rcv[index].leNext = | |
258 | cpu_to_le32(icom_port-> statStg_pci + offset); | |
259 | trace(icom_port, "FID_RBUFF", | |
260 | (unsigned long) icom_port->recv_buf); | |
261 | icom_port->statStg->rcv[index].leBuffer = | |
262 | cpu_to_le32(icom_port->recv_buf_pci); | |
263 | } else if (index == (NUM_RBUFFS -1) ) { | |
264 | offset = startStgAddr - (unsigned long) icom_port->statStg; | |
265 | icom_port->statStg->rcv[index].leNext = | |
266 | cpu_to_le32(icom_port-> statStg_pci + offset); | |
267 | trace(icom_port, "FID_RBUFF", | |
268 | (unsigned long) icom_port->recv_buf + 2048); | |
269 | icom_port->statStg->rcv[index].leBuffer = | |
270 | cpu_to_le32(icom_port->recv_buf_pci + 2048); | |
271 | } else { | |
272 | icom_port->statStg->rcv[index].leNext = 0; | |
273 | icom_port->statStg->rcv[index].leBuffer = 0; | |
274 | } | |
275 | } | |
276 | ||
277 | return 0; | |
278 | } | |
279 | ||
280 | static void stop_processor(struct icom_port *icom_port) | |
281 | { | |
282 | unsigned long temp; | |
283 | unsigned long flags; | |
284 | int port; | |
285 | ||
286 | spin_lock_irqsave(&icom_lock, flags); | |
287 | ||
288 | port = icom_port->port; | |
289 | if (port == 0 || port == 1) | |
290 | stop_proc[port].global_control_reg = &icom_port->global_reg->control; | |
291 | else | |
292 | stop_proc[port].global_control_reg = &icom_port->global_reg->control_2; | |
293 | ||
294 | ||
295 | if (port < 4) { | |
296 | temp = readl(stop_proc[port].global_control_reg); | |
297 | temp = | |
298 | (temp & ~start_proc[port].processor_id) | stop_proc[port].processor_id; | |
299 | writel(temp, stop_proc[port].global_control_reg); | |
300 | ||
301 | /* write flush */ | |
302 | readl(stop_proc[port].global_control_reg); | |
303 | } else { | |
304 | dev_err(&icom_port->adapter->pci_dev->dev, | |
305 | "Invalid port assignment\n"); | |
306 | } | |
307 | ||
308 | spin_unlock_irqrestore(&icom_lock, flags); | |
309 | } | |
310 | ||
311 | static void start_processor(struct icom_port *icom_port) | |
312 | { | |
313 | unsigned long temp; | |
314 | unsigned long flags; | |
315 | int port; | |
316 | ||
317 | spin_lock_irqsave(&icom_lock, flags); | |
318 | ||
319 | port = icom_port->port; | |
320 | if (port == 0 || port == 1) | |
321 | start_proc[port].global_control_reg = &icom_port->global_reg->control; | |
322 | else | |
323 | start_proc[port].global_control_reg = &icom_port->global_reg->control_2; | |
324 | if (port < 4) { | |
325 | temp = readl(start_proc[port].global_control_reg); | |
326 | temp = | |
327 | (temp & ~stop_proc[port].processor_id) | start_proc[port].processor_id; | |
328 | writel(temp, start_proc[port].global_control_reg); | |
329 | ||
330 | /* write flush */ | |
331 | readl(start_proc[port].global_control_reg); | |
332 | } else { | |
333 | dev_err(&icom_port->adapter->pci_dev->dev, | |
334 | "Invalid port assignment\n"); | |
335 | } | |
336 | ||
337 | spin_unlock_irqrestore(&icom_lock, flags); | |
338 | } | |
339 | ||
340 | static void load_code(struct icom_port *icom_port) | |
341 | { | |
342 | const struct firmware *fw; | |
343 | char __iomem *iram_ptr; | |
344 | int index; | |
345 | int status = 0; | |
346 | void __iomem *dram_ptr = icom_port->dram; | |
347 | dma_addr_t temp_pci; | |
348 | unsigned char *new_page = NULL; | |
349 | unsigned char cable_id = NO_CABLE; | |
350 | struct pci_dev *dev = icom_port->adapter->pci_dev; | |
351 | ||
352 | /* Clear out any pending interrupts */ | |
353 | writew(0x3FFF, icom_port->int_reg); | |
354 | ||
355 | trace(icom_port, "CLEAR_INTERRUPTS", 0); | |
356 | ||
357 | /* Stop processor */ | |
358 | stop_processor(icom_port); | |
359 | ||
360 | /* Zero out DRAM */ | |
361 | memset_io(dram_ptr, 0, 512); | |
362 | ||
363 | /* Load Call Setup into Adapter */ | |
364 | if (request_firmware(&fw, "icom_call_setup.bin", &dev->dev) < 0) { | |
365 | dev_err(&dev->dev,"Unable to load icom_call_setup.bin firmware image\n"); | |
366 | status = -1; | |
367 | goto load_code_exit; | |
368 | } | |
369 | ||
370 | if (fw->size > ICOM_DCE_IRAM_OFFSET) { | |
371 | dev_err(&dev->dev, "Invalid firmware image for icom_call_setup.bin found.\n"); | |
372 | release_firmware(fw); | |
373 | status = -1; | |
374 | goto load_code_exit; | |
375 | } | |
376 | ||
377 | iram_ptr = (char __iomem *)icom_port->dram + ICOM_IRAM_OFFSET; | |
378 | for (index = 0; index < fw->size; index++) | |
379 | writeb(fw->data[index], &iram_ptr[index]); | |
380 | ||
381 | release_firmware(fw); | |
382 | ||
383 | /* Load Resident DCE portion of Adapter */ | |
384 | if (request_firmware(&fw, "icom_res_dce.bin", &dev->dev) < 0) { | |
385 | dev_err(&dev->dev,"Unable to load icom_res_dce.bin firmware image\n"); | |
386 | status = -1; | |
387 | goto load_code_exit; | |
388 | } | |
389 | ||
390 | if (fw->size > ICOM_IRAM_SIZE) { | |
391 | dev_err(&dev->dev, "Invalid firmware image for icom_res_dce.bin found.\n"); | |
392 | release_firmware(fw); | |
393 | status = -1; | |
394 | goto load_code_exit; | |
395 | } | |
396 | ||
397 | iram_ptr = (char __iomem *) icom_port->dram + ICOM_IRAM_OFFSET; | |
398 | for (index = ICOM_DCE_IRAM_OFFSET; index < fw->size; index++) | |
399 | writeb(fw->data[index], &iram_ptr[index]); | |
400 | ||
401 | release_firmware(fw); | |
402 | ||
403 | /* Set Hardware level */ | |
404 | if ((icom_port->adapter->version | ADAPTER_V2) == ADAPTER_V2) | |
405 | writeb(V2_HARDWARE, &(icom_port->dram->misc_flags)); | |
406 | ||
407 | /* Start the processor in Adapter */ | |
408 | start_processor(icom_port); | |
409 | ||
410 | writeb((HDLC_PPP_PURE_ASYNC | HDLC_FF_FILL), | |
411 | &(icom_port->dram->HDLCConfigReg)); | |
412 | writeb(0x04, &(icom_port->dram->FlagFillIdleTimer)); /* 0.5 seconds */ | |
413 | writeb(0x00, &(icom_port->dram->CmdReg)); | |
414 | writeb(0x10, &(icom_port->dram->async_config3)); | |
415 | writeb((ICOM_ACFG_DRIVE1 | ICOM_ACFG_NO_PARITY | ICOM_ACFG_8BPC | | |
416 | ICOM_ACFG_1STOP_BIT), &(icom_port->dram->async_config2)); | |
417 | ||
418 | /*Set up data in icom DRAM to indicate where personality | |
419 | *code is located and its length. | |
420 | */ | |
421 | new_page = pci_alloc_consistent(dev, 4096, &temp_pci); | |
422 | ||
423 | if (!new_page) { | |
424 | dev_err(&dev->dev, "Can not allocate DMA buffer\n"); | |
425 | status = -1; | |
426 | goto load_code_exit; | |
427 | } | |
428 | ||
429 | if (request_firmware(&fw, "icom_asc.bin", &dev->dev) < 0) { | |
430 | dev_err(&dev->dev,"Unable to load icom_asc.bin firmware image\n"); | |
431 | status = -1; | |
432 | goto load_code_exit; | |
433 | } | |
434 | ||
435 | if (fw->size > ICOM_DCE_IRAM_OFFSET) { | |
436 | dev_err(&dev->dev, "Invalid firmware image for icom_asc.bin found.\n"); | |
437 | release_firmware(fw); | |
438 | status = -1; | |
439 | goto load_code_exit; | |
440 | } | |
441 | ||
442 | for (index = 0; index < fw->size; index++) | |
443 | new_page[index] = fw->data[index]; | |
444 | ||
445 | release_firmware(fw); | |
446 | ||
447 | writeb((char) ((fw->size + 16)/16), &icom_port->dram->mac_length); | |
448 | writel(temp_pci, &icom_port->dram->mac_load_addr); | |
449 | ||
450 | /*Setting the syncReg to 0x80 causes adapter to start downloading | |
451 | the personality code into adapter instruction RAM. | |
452 | Once code is loaded, it will begin executing and, based on | |
453 | information provided above, will start DMAing data from | |
454 | shared memory to adapter DRAM. | |
455 | */ | |
456 | /* the wait loop below verifies this write operation has been done | |
457 | and processed | |
458 | */ | |
459 | writeb(START_DOWNLOAD, &icom_port->dram->sync); | |
460 | ||
461 | /* Wait max 1 Sec for data download and processor to start */ | |
462 | for (index = 0; index < 10; index++) { | |
463 | msleep(100); | |
464 | if (readb(&icom_port->dram->misc_flags) & ICOM_HDW_ACTIVE) | |
465 | break; | |
466 | } | |
467 | ||
468 | if (index == 10) | |
469 | status = -1; | |
470 | ||
471 | /* | |
472 | * check Cable ID | |
473 | */ | |
474 | cable_id = readb(&icom_port->dram->cable_id); | |
475 | ||
476 | if (cable_id & ICOM_CABLE_ID_VALID) { | |
477 | /* Get cable ID into the lower 4 bits (standard form) */ | |
478 | cable_id = (cable_id & ICOM_CABLE_ID_MASK) >> 4; | |
479 | icom_port->cable_id = cable_id; | |
480 | } else { | |
481 | dev_err(&dev->dev,"Invalid or no cable attached\n"); | |
482 | icom_port->cable_id = NO_CABLE; | |
483 | } | |
484 | ||
485 | load_code_exit: | |
486 | ||
487 | if (status != 0) { | |
488 | /* Clear out any pending interrupts */ | |
489 | writew(0x3FFF, icom_port->int_reg); | |
490 | ||
491 | /* Turn off port */ | |
492 | writeb(ICOM_DISABLE, &(icom_port->dram->disable)); | |
493 | ||
494 | /* Stop processor */ | |
495 | stop_processor(icom_port); | |
496 | ||
497 | dev_err(&icom_port->adapter->pci_dev->dev,"Port not opertional\n"); | |
498 | } | |
499 | ||
500 | if (new_page != NULL) | |
501 | pci_free_consistent(dev, 4096, new_page, temp_pci); | |
502 | } | |
503 | ||
504 | static int startup(struct icom_port *icom_port) | |
505 | { | |
506 | unsigned long temp; | |
507 | unsigned char cable_id, raw_cable_id; | |
508 | unsigned long flags; | |
509 | int port; | |
510 | ||
511 | trace(icom_port, "STARTUP", 0); | |
512 | ||
513 | if (!icom_port->dram) { | |
514 | /* should NEVER be NULL */ | |
515 | dev_err(&icom_port->adapter->pci_dev->dev, | |
516 | "Unusable Port, port configuration missing\n"); | |
517 | return -ENODEV; | |
518 | } | |
519 | ||
520 | /* | |
521 | * check Cable ID | |
522 | */ | |
523 | raw_cable_id = readb(&icom_port->dram->cable_id); | |
524 | trace(icom_port, "CABLE_ID", raw_cable_id); | |
525 | ||
526 | /* Get cable ID into the lower 4 bits (standard form) */ | |
527 | cable_id = (raw_cable_id & ICOM_CABLE_ID_MASK) >> 4; | |
528 | ||
529 | /* Check for valid Cable ID */ | |
530 | if (!(raw_cable_id & ICOM_CABLE_ID_VALID) || | |
531 | (cable_id != icom_port->cable_id)) { | |
532 | ||
533 | /* reload adapter code, pick up any potential changes in cable id */ | |
534 | load_code(icom_port); | |
535 | ||
536 | /* still no sign of cable, error out */ | |
537 | raw_cable_id = readb(&icom_port->dram->cable_id); | |
538 | cable_id = (raw_cable_id & ICOM_CABLE_ID_MASK) >> 4; | |
539 | if (!(raw_cable_id & ICOM_CABLE_ID_VALID) || | |
540 | (icom_port->cable_id == NO_CABLE)) | |
541 | return -EIO; | |
542 | } | |
543 | ||
544 | /* | |
545 | * Finally, clear and enable interrupts | |
546 | */ | |
547 | spin_lock_irqsave(&icom_lock, flags); | |
548 | port = icom_port->port; | |
549 | if (port == 0 || port == 1) | |
550 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask; | |
551 | else | |
552 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask_2; | |
553 | ||
554 | if (port == 0 || port == 2) | |
555 | writew(0x00FF, icom_port->int_reg); | |
556 | else | |
557 | writew(0x3F00, icom_port->int_reg); | |
558 | if (port < 4) { | |
559 | temp = readl(int_mask_tbl[port].global_int_mask); | |
560 | writel(temp & ~int_mask_tbl[port].processor_id, int_mask_tbl[port].global_int_mask); | |
561 | ||
562 | /* write flush */ | |
563 | readl(int_mask_tbl[port].global_int_mask); | |
564 | } else { | |
565 | dev_err(&icom_port->adapter->pci_dev->dev, | |
566 | "Invalid port assignment\n"); | |
567 | } | |
568 | ||
569 | spin_unlock_irqrestore(&icom_lock, flags); | |
570 | return 0; | |
571 | } | |
572 | ||
573 | static void shutdown(struct icom_port *icom_port) | |
574 | { | |
575 | unsigned long temp; | |
576 | unsigned char cmdReg; | |
577 | unsigned long flags; | |
578 | int port; | |
579 | ||
580 | spin_lock_irqsave(&icom_lock, flags); | |
581 | trace(icom_port, "SHUTDOWN", 0); | |
582 | ||
583 | /* | |
584 | * disable all interrupts | |
585 | */ | |
586 | port = icom_port->port; | |
587 | if (port == 0 || port == 1) | |
588 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask; | |
589 | else | |
590 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask_2; | |
591 | ||
592 | if (port < 4) { | |
593 | temp = readl(int_mask_tbl[port].global_int_mask); | |
594 | writel(temp | int_mask_tbl[port].processor_id, int_mask_tbl[port].global_int_mask); | |
595 | ||
596 | /* write flush */ | |
597 | readl(int_mask_tbl[port].global_int_mask); | |
598 | } else { | |
599 | dev_err(&icom_port->adapter->pci_dev->dev, | |
600 | "Invalid port assignment\n"); | |
601 | } | |
602 | spin_unlock_irqrestore(&icom_lock, flags); | |
603 | ||
604 | /* | |
605 | * disable break condition | |
606 | */ | |
607 | cmdReg = readb(&icom_port->dram->CmdReg); | |
608 | if ((cmdReg | CMD_SND_BREAK) == CMD_SND_BREAK) { | |
609 | writeb(cmdReg & ~CMD_SND_BREAK, &icom_port->dram->CmdReg); | |
610 | } | |
611 | } | |
612 | ||
613 | static int icom_write(struct uart_port *port) | |
614 | { | |
615 | unsigned long data_count; | |
616 | unsigned char cmdReg; | |
617 | unsigned long offset; | |
618 | int temp_tail = port->info->xmit.tail; | |
619 | ||
620 | trace(ICOM_PORT, "WRITE", 0); | |
621 | ||
622 | if (cpu_to_le16(ICOM_PORT->statStg->xmit[0].flags) & | |
623 | SA_FLAGS_READY_TO_XMIT) { | |
624 | trace(ICOM_PORT, "WRITE_FULL", 0); | |
625 | return 0; | |
626 | } | |
627 | ||
628 | data_count = 0; | |
629 | while ((port->info->xmit.head != temp_tail) && | |
630 | (data_count <= XMIT_BUFF_SZ)) { | |
631 | ||
632 | ICOM_PORT->xmit_buf[data_count++] = | |
633 | port->info->xmit.buf[temp_tail]; | |
634 | ||
635 | temp_tail++; | |
636 | temp_tail &= (UART_XMIT_SIZE - 1); | |
637 | } | |
638 | ||
639 | if (data_count) { | |
640 | ICOM_PORT->statStg->xmit[0].flags = | |
641 | cpu_to_le16(SA_FLAGS_READY_TO_XMIT); | |
642 | ICOM_PORT->statStg->xmit[0].leLength = | |
643 | cpu_to_le16(data_count); | |
644 | offset = | |
645 | (unsigned long) &ICOM_PORT->statStg->xmit[0] - | |
646 | (unsigned long) ICOM_PORT->statStg; | |
647 | *ICOM_PORT->xmitRestart = | |
648 | cpu_to_le32(ICOM_PORT->statStg_pci + offset); | |
649 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
650 | writeb(cmdReg | CMD_XMIT_RCV_ENABLE, | |
651 | &ICOM_PORT->dram->CmdReg); | |
652 | writeb(START_XMIT, &ICOM_PORT->dram->StartXmitCmd); | |
653 | trace(ICOM_PORT, "WRITE_START", data_count); | |
654 | /* write flush */ | |
655 | readb(&ICOM_PORT->dram->StartXmitCmd); | |
656 | } | |
657 | ||
658 | return data_count; | |
659 | } | |
660 | ||
661 | static inline void check_modem_status(struct icom_port *icom_port) | |
662 | { | |
663 | static char old_status = 0; | |
664 | char delta_status; | |
665 | unsigned char status; | |
666 | ||
667 | spin_lock(&icom_port->uart_port.lock); | |
668 | ||
669 | /*modem input register */ | |
670 | status = readb(&icom_port->dram->isr); | |
671 | trace(icom_port, "CHECK_MODEM", status); | |
672 | delta_status = status ^ old_status; | |
673 | if (delta_status) { | |
674 | if (delta_status & ICOM_RI) | |
675 | icom_port->uart_port.icount.rng++; | |
676 | if (delta_status & ICOM_DSR) | |
677 | icom_port->uart_port.icount.dsr++; | |
678 | if (delta_status & ICOM_DCD) | |
679 | uart_handle_dcd_change(&icom_port->uart_port, | |
680 | delta_status & ICOM_DCD); | |
681 | if (delta_status & ICOM_CTS) | |
682 | uart_handle_cts_change(&icom_port->uart_port, | |
683 | delta_status & ICOM_CTS); | |
684 | ||
685 | wake_up_interruptible(&icom_port->uart_port.info-> | |
686 | delta_msr_wait); | |
687 | old_status = status; | |
688 | } | |
689 | spin_unlock(&icom_port->uart_port.lock); | |
690 | } | |
691 | ||
692 | static void xmit_interrupt(u16 port_int_reg, struct icom_port *icom_port) | |
693 | { | |
694 | unsigned short int count; | |
695 | int i; | |
696 | ||
697 | if (port_int_reg & (INT_XMIT_COMPLETED)) { | |
698 | trace(icom_port, "XMIT_COMPLETE", 0); | |
699 | ||
700 | /* clear buffer in use bit */ | |
701 | icom_port->statStg->xmit[0].flags &= | |
702 | cpu_to_le16(~SA_FLAGS_READY_TO_XMIT); | |
703 | ||
704 | count = (unsigned short int) | |
705 | cpu_to_le16(icom_port->statStg->xmit[0].leLength); | |
706 | icom_port->uart_port.icount.tx += count; | |
707 | ||
708 | for (i=0; i<count && | |
709 | !uart_circ_empty(&icom_port->uart_port.info->xmit); i++) { | |
710 | ||
711 | icom_port->uart_port.info->xmit.tail++; | |
712 | icom_port->uart_port.info->xmit.tail &= | |
713 | (UART_XMIT_SIZE - 1); | |
714 | } | |
715 | ||
716 | if (!icom_write(&icom_port->uart_port)) | |
717 | /* activate write queue */ | |
718 | uart_write_wakeup(&icom_port->uart_port); | |
719 | } else | |
720 | trace(icom_port, "XMIT_DISABLED", 0); | |
721 | } | |
722 | ||
723 | static void recv_interrupt(u16 port_int_reg, struct icom_port *icom_port) | |
724 | { | |
725 | short int count, rcv_buff; | |
726 | struct tty_struct *tty = icom_port->uart_port.info->tty; | |
727 | unsigned short int status; | |
728 | struct uart_icount *icount; | |
729 | unsigned long offset; | |
33f0f88f | 730 | unsigned char flag; |
1da177e4 LT |
731 | |
732 | trace(icom_port, "RCV_COMPLETE", 0); | |
733 | rcv_buff = icom_port->next_rcv; | |
734 | ||
735 | status = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].flags); | |
736 | while (status & SA_FL_RCV_DONE) { | |
33f0f88f | 737 | int first = -1; |
1da177e4 LT |
738 | |
739 | trace(icom_port, "FID_STATUS", status); | |
740 | count = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].leLength); | |
741 | ||
33f0f88f | 742 | count = tty_buffer_request_room(tty, count); |
1da177e4 | 743 | trace(icom_port, "RCV_COUNT", count); |
1da177e4 LT |
744 | |
745 | trace(icom_port, "REAL_COUNT", count); | |
746 | ||
747 | offset = | |
748 | cpu_to_le32(icom_port->statStg->rcv[rcv_buff].leBuffer) - | |
749 | icom_port->recv_buf_pci; | |
750 | ||
33f0f88f | 751 | /* Block copy all but the last byte as this may have status */ |
1da177e4 | 752 | if (count > 0) { |
33f0f88f AC |
753 | first = icom_port->recv_buf[offset]; |
754 | tty_insert_flip_string(tty, icom_port->recv_buf + offset, count - 1); | |
1da177e4 LT |
755 | } |
756 | ||
757 | icount = &icom_port->uart_port.icount; | |
758 | icount->rx += count; | |
759 | ||
760 | /* Break detect logic */ | |
761 | if ((status & SA_FLAGS_FRAME_ERROR) | |
33f0f88f | 762 | && first == 0) { |
1da177e4 LT |
763 | status &= ~SA_FLAGS_FRAME_ERROR; |
764 | status |= SA_FLAGS_BREAK_DET; | |
765 | trace(icom_port, "BREAK_DET", 0); | |
766 | } | |
767 | ||
33f0f88f AC |
768 | flag = TTY_NORMAL; |
769 | ||
1da177e4 LT |
770 | if (status & |
771 | (SA_FLAGS_BREAK_DET | SA_FLAGS_PARITY_ERROR | | |
772 | SA_FLAGS_FRAME_ERROR | SA_FLAGS_OVERRUN)) { | |
773 | ||
774 | if (status & SA_FLAGS_BREAK_DET) | |
775 | icount->brk++; | |
776 | if (status & SA_FLAGS_PARITY_ERROR) | |
777 | icount->parity++; | |
778 | if (status & SA_FLAGS_FRAME_ERROR) | |
779 | icount->frame++; | |
780 | if (status & SA_FLAGS_OVERRUN) | |
781 | icount->overrun++; | |
782 | ||
783 | /* | |
784 | * Now check to see if character should be | |
785 | * ignored, and mask off conditions which | |
786 | * should be ignored. | |
787 | */ | |
788 | if (status & icom_port->ignore_status_mask) { | |
789 | trace(icom_port, "IGNORE_CHAR", 0); | |
790 | goto ignore_char; | |
791 | } | |
792 | ||
793 | status &= icom_port->read_status_mask; | |
794 | ||
795 | if (status & SA_FLAGS_BREAK_DET) { | |
33f0f88f | 796 | flag = TTY_BREAK; |
1da177e4 LT |
797 | } else if (status & SA_FLAGS_PARITY_ERROR) { |
798 | trace(icom_port, "PARITY_ERROR", 0); | |
33f0f88f | 799 | flag = TTY_PARITY; |
1da177e4 | 800 | } else if (status & SA_FLAGS_FRAME_ERROR) |
33f0f88f AC |
801 | flag = TTY_FRAME; |
802 | ||
1da177e4 LT |
803 | } |
804 | ||
33f0f88f AC |
805 | tty_insert_flip_char(tty, *(icom_port->recv_buf + offset + count - 1), flag); |
806 | ||
807 | if (status & SA_FLAGS_OVERRUN) | |
808 | /* | |
809 | * Overrun is special, since it's | |
810 | * reported immediately, and doesn't | |
811 | * affect the current character | |
812 | */ | |
813 | tty_insert_flip_char(tty, 0, TTY_OVERRUN); | |
814 | ignore_char: | |
815 | icom_port->statStg->rcv[rcv_buff].flags = 0; | |
1da177e4 LT |
816 | icom_port->statStg->rcv[rcv_buff].leLength = 0; |
817 | icom_port->statStg->rcv[rcv_buff].WorkingLength = | |
818 | (unsigned short int) cpu_to_le16(RCV_BUFF_SZ); | |
819 | ||
820 | rcv_buff++; | |
821 | if (rcv_buff == NUM_RBUFFS) | |
822 | rcv_buff = 0; | |
823 | ||
824 | status = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].flags); | |
825 | } | |
826 | icom_port->next_rcv = rcv_buff; | |
827 | tty_flip_buffer_push(tty); | |
828 | } | |
829 | ||
830 | static void process_interrupt(u16 port_int_reg, | |
831 | struct icom_port *icom_port) | |
832 | { | |
833 | ||
834 | spin_lock(&icom_port->uart_port.lock); | |
835 | trace(icom_port, "INTERRUPT", port_int_reg); | |
836 | ||
837 | if (port_int_reg & (INT_XMIT_COMPLETED | INT_XMIT_DISABLED)) | |
838 | xmit_interrupt(port_int_reg, icom_port); | |
839 | ||
840 | if (port_int_reg & INT_RCV_COMPLETED) | |
841 | recv_interrupt(port_int_reg, icom_port); | |
842 | ||
843 | spin_unlock(&icom_port->uart_port.lock); | |
844 | } | |
845 | ||
7d12e780 | 846 | static irqreturn_t icom_interrupt(int irq, void *dev_id) |
1da177e4 LT |
847 | { |
848 | void __iomem * int_reg; | |
849 | u32 adapter_interrupts; | |
850 | u16 port_int_reg; | |
851 | struct icom_adapter *icom_adapter; | |
852 | struct icom_port *icom_port; | |
853 | ||
854 | /* find icom_port for this interrupt */ | |
855 | icom_adapter = (struct icom_adapter *) dev_id; | |
856 | ||
857 | if ((icom_adapter->version | ADAPTER_V2) == ADAPTER_V2) { | |
858 | int_reg = icom_adapter->base_addr + 0x8024; | |
859 | ||
860 | adapter_interrupts = readl(int_reg); | |
861 | ||
862 | if (adapter_interrupts & 0x00003FFF) { | |
863 | /* port 2 interrupt, NOTE: for all ADAPTER_V2, port 2 will be active */ | |
864 | icom_port = &icom_adapter->port_info[2]; | |
865 | port_int_reg = (u16) adapter_interrupts; | |
866 | process_interrupt(port_int_reg, icom_port); | |
867 | check_modem_status(icom_port); | |
868 | } | |
869 | if (adapter_interrupts & 0x3FFF0000) { | |
870 | /* port 3 interrupt */ | |
871 | icom_port = &icom_adapter->port_info[3]; | |
872 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
873 | port_int_reg = | |
874 | (u16) (adapter_interrupts >> 16); | |
875 | process_interrupt(port_int_reg, icom_port); | |
876 | check_modem_status(icom_port); | |
877 | } | |
878 | } | |
879 | ||
880 | /* Clear out any pending interrupts */ | |
881 | writel(adapter_interrupts, int_reg); | |
882 | ||
883 | int_reg = icom_adapter->base_addr + 0x8004; | |
884 | } else { | |
885 | int_reg = icom_adapter->base_addr + 0x4004; | |
886 | } | |
887 | ||
888 | adapter_interrupts = readl(int_reg); | |
889 | ||
890 | if (adapter_interrupts & 0x00003FFF) { | |
891 | /* port 0 interrupt, NOTE: for all adapters, port 0 will be active */ | |
892 | icom_port = &icom_adapter->port_info[0]; | |
893 | port_int_reg = (u16) adapter_interrupts; | |
894 | process_interrupt(port_int_reg, icom_port); | |
895 | check_modem_status(icom_port); | |
896 | } | |
897 | if (adapter_interrupts & 0x3FFF0000) { | |
898 | /* port 1 interrupt */ | |
899 | icom_port = &icom_adapter->port_info[1]; | |
900 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
901 | port_int_reg = (u16) (adapter_interrupts >> 16); | |
902 | process_interrupt(port_int_reg, icom_port); | |
903 | check_modem_status(icom_port); | |
904 | } | |
905 | } | |
906 | ||
907 | /* Clear out any pending interrupts */ | |
908 | writel(adapter_interrupts, int_reg); | |
909 | ||
910 | /* flush the write */ | |
911 | adapter_interrupts = readl(int_reg); | |
912 | ||
913 | return IRQ_HANDLED; | |
914 | } | |
915 | ||
916 | /* | |
917 | * ------------------------------------------------------------------ | |
918 | * Begin serial-core API | |
919 | * ------------------------------------------------------------------ | |
920 | */ | |
921 | static unsigned int icom_tx_empty(struct uart_port *port) | |
922 | { | |
923 | int ret; | |
924 | unsigned long flags; | |
925 | ||
926 | spin_lock_irqsave(&port->lock, flags); | |
927 | if (cpu_to_le16(ICOM_PORT->statStg->xmit[0].flags) & | |
928 | SA_FLAGS_READY_TO_XMIT) | |
929 | ret = TIOCSER_TEMT; | |
930 | else | |
931 | ret = 0; | |
932 | ||
933 | spin_unlock_irqrestore(&port->lock, flags); | |
934 | return ret; | |
935 | } | |
936 | ||
937 | static void icom_set_mctrl(struct uart_port *port, unsigned int mctrl) | |
938 | { | |
939 | unsigned char local_osr; | |
940 | ||
941 | trace(ICOM_PORT, "SET_MODEM", 0); | |
942 | local_osr = readb(&ICOM_PORT->dram->osr); | |
943 | ||
944 | if (mctrl & TIOCM_RTS) { | |
945 | trace(ICOM_PORT, "RAISE_RTS", 0); | |
946 | local_osr |= ICOM_RTS; | |
947 | } else { | |
948 | trace(ICOM_PORT, "LOWER_RTS", 0); | |
949 | local_osr &= ~ICOM_RTS; | |
950 | } | |
951 | ||
952 | if (mctrl & TIOCM_DTR) { | |
953 | trace(ICOM_PORT, "RAISE_DTR", 0); | |
954 | local_osr |= ICOM_DTR; | |
955 | } else { | |
956 | trace(ICOM_PORT, "LOWER_DTR", 0); | |
957 | local_osr &= ~ICOM_DTR; | |
958 | } | |
959 | ||
960 | writeb(local_osr, &ICOM_PORT->dram->osr); | |
961 | } | |
962 | ||
963 | static unsigned int icom_get_mctrl(struct uart_port *port) | |
964 | { | |
965 | unsigned char status; | |
966 | unsigned int result; | |
967 | ||
968 | trace(ICOM_PORT, "GET_MODEM", 0); | |
969 | ||
970 | status = readb(&ICOM_PORT->dram->isr); | |
971 | ||
972 | result = ((status & ICOM_DCD) ? TIOCM_CAR : 0) | |
973 | | ((status & ICOM_RI) ? TIOCM_RNG : 0) | |
974 | | ((status & ICOM_DSR) ? TIOCM_DSR : 0) | |
975 | | ((status & ICOM_CTS) ? TIOCM_CTS : 0); | |
976 | return result; | |
977 | } | |
978 | ||
b129a8cc | 979 | static void icom_stop_tx(struct uart_port *port) |
1da177e4 LT |
980 | { |
981 | unsigned char cmdReg; | |
982 | ||
b129a8cc RK |
983 | trace(ICOM_PORT, "STOP", 0); |
984 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
985 | writeb(cmdReg | CMD_HOLD_XMIT, &ICOM_PORT->dram->CmdReg); | |
1da177e4 LT |
986 | } |
987 | ||
b129a8cc | 988 | static void icom_start_tx(struct uart_port *port) |
1da177e4 LT |
989 | { |
990 | unsigned char cmdReg; | |
991 | ||
992 | trace(ICOM_PORT, "START", 0); | |
993 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
994 | if ((cmdReg & CMD_HOLD_XMIT) == CMD_HOLD_XMIT) | |
995 | writeb(cmdReg & ~CMD_HOLD_XMIT, | |
996 | &ICOM_PORT->dram->CmdReg); | |
997 | ||
998 | icom_write(port); | |
999 | } | |
1000 | ||
1001 | static void icom_send_xchar(struct uart_port *port, char ch) | |
1002 | { | |
1003 | unsigned char xdata; | |
1004 | int index; | |
1005 | unsigned long flags; | |
1006 | ||
1007 | trace(ICOM_PORT, "SEND_XCHAR", ch); | |
1008 | ||
1009 | /* wait .1 sec to send char */ | |
1010 | for (index = 0; index < 10; index++) { | |
1011 | spin_lock_irqsave(&port->lock, flags); | |
1012 | xdata = readb(&ICOM_PORT->dram->xchar); | |
1013 | if (xdata == 0x00) { | |
1014 | trace(ICOM_PORT, "QUICK_WRITE", 0); | |
1015 | writeb(ch, &ICOM_PORT->dram->xchar); | |
1016 | ||
1017 | /* flush write operation */ | |
1018 | xdata = readb(&ICOM_PORT->dram->xchar); | |
1019 | spin_unlock_irqrestore(&port->lock, flags); | |
1020 | break; | |
1021 | } | |
1022 | spin_unlock_irqrestore(&port->lock, flags); | |
1023 | msleep(10); | |
1024 | } | |
1025 | } | |
1026 | ||
1027 | static void icom_stop_rx(struct uart_port *port) | |
1028 | { | |
1029 | unsigned char cmdReg; | |
1030 | ||
1031 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1032 | writeb(cmdReg & ~CMD_RCV_ENABLE, &ICOM_PORT->dram->CmdReg); | |
1033 | } | |
1034 | ||
1035 | static void icom_enable_ms(struct uart_port *port) | |
1036 | { | |
1037 | /* no-op */ | |
1038 | } | |
1039 | ||
1040 | static void icom_break(struct uart_port *port, int break_state) | |
1041 | { | |
1042 | unsigned char cmdReg; | |
1043 | unsigned long flags; | |
1044 | ||
1045 | spin_lock_irqsave(&port->lock, flags); | |
1046 | trace(ICOM_PORT, "BREAK", 0); | |
1047 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1048 | if (break_state == -1) { | |
1049 | writeb(cmdReg | CMD_SND_BREAK, &ICOM_PORT->dram->CmdReg); | |
1050 | } else { | |
1051 | writeb(cmdReg & ~CMD_SND_BREAK, &ICOM_PORT->dram->CmdReg); | |
1052 | } | |
1053 | spin_unlock_irqrestore(&port->lock, flags); | |
1054 | } | |
1055 | ||
1056 | static int icom_open(struct uart_port *port) | |
1057 | { | |
1058 | int retval; | |
1059 | ||
1060 | kobject_get(&ICOM_PORT->adapter->kobj); | |
1061 | retval = startup(ICOM_PORT); | |
1062 | ||
1063 | if (retval) { | |
1064 | kobject_put(&ICOM_PORT->adapter->kobj); | |
1065 | trace(ICOM_PORT, "STARTUP_ERROR", 0); | |
1066 | return retval; | |
1067 | } | |
1068 | ||
1069 | return 0; | |
1070 | } | |
1071 | ||
1072 | static void icom_close(struct uart_port *port) | |
1073 | { | |
1074 | unsigned char cmdReg; | |
1075 | ||
1076 | trace(ICOM_PORT, "CLOSE", 0); | |
1077 | ||
1078 | /* stop receiver */ | |
1079 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1080 | writeb(cmdReg & (unsigned char) ~CMD_RCV_ENABLE, | |
1081 | &ICOM_PORT->dram->CmdReg); | |
1082 | ||
1083 | shutdown(ICOM_PORT); | |
1084 | ||
1085 | kobject_put(&ICOM_PORT->adapter->kobj); | |
1086 | } | |
1087 | ||
1088 | static void icom_set_termios(struct uart_port *port, | |
606d099c AC |
1089 | struct ktermios *termios, |
1090 | struct ktermios *old_termios) | |
1da177e4 LT |
1091 | { |
1092 | int baud; | |
1093 | unsigned cflag, iflag; | |
1094 | int bits; | |
1095 | char new_config2; | |
1096 | char new_config3 = 0; | |
1097 | char tmp_byte; | |
1098 | int index; | |
1099 | int rcv_buff, xmit_buff; | |
1100 | unsigned long offset; | |
1101 | unsigned long flags; | |
1102 | ||
1103 | spin_lock_irqsave(&port->lock, flags); | |
1104 | trace(ICOM_PORT, "CHANGE_SPEED", 0); | |
1105 | ||
1106 | cflag = termios->c_cflag; | |
1107 | iflag = termios->c_iflag; | |
1108 | ||
1109 | new_config2 = ICOM_ACFG_DRIVE1; | |
1110 | ||
1111 | /* byte size and parity */ | |
1112 | switch (cflag & CSIZE) { | |
1113 | case CS5: /* 5 bits/char */ | |
1114 | new_config2 |= ICOM_ACFG_5BPC; | |
1115 | bits = 7; | |
1116 | break; | |
1117 | case CS6: /* 6 bits/char */ | |
1118 | new_config2 |= ICOM_ACFG_6BPC; | |
1119 | bits = 8; | |
1120 | break; | |
1121 | case CS7: /* 7 bits/char */ | |
1122 | new_config2 |= ICOM_ACFG_7BPC; | |
1123 | bits = 9; | |
1124 | break; | |
1125 | case CS8: /* 8 bits/char */ | |
1126 | new_config2 |= ICOM_ACFG_8BPC; | |
1127 | bits = 10; | |
1128 | break; | |
1129 | default: | |
1130 | bits = 10; | |
1131 | break; | |
1132 | } | |
1133 | if (cflag & CSTOPB) { | |
1134 | /* 2 stop bits */ | |
1135 | new_config2 |= ICOM_ACFG_2STOP_BIT; | |
1136 | bits++; | |
1137 | } | |
1138 | if (cflag & PARENB) { | |
1139 | /* parity bit enabled */ | |
1140 | new_config2 |= ICOM_ACFG_PARITY_ENAB; | |
1141 | trace(ICOM_PORT, "PARENB", 0); | |
1142 | bits++; | |
1143 | } | |
1144 | if (cflag & PARODD) { | |
1145 | /* odd parity */ | |
1146 | new_config2 |= ICOM_ACFG_PARITY_ODD; | |
1147 | trace(ICOM_PORT, "PARODD", 0); | |
1148 | } | |
1149 | ||
1150 | /* Determine divisor based on baud rate */ | |
1151 | baud = uart_get_baud_rate(port, termios, old_termios, | |
1152 | icom_acfg_baud[0], | |
1153 | icom_acfg_baud[BAUD_TABLE_LIMIT]); | |
1154 | if (!baud) | |
1155 | baud = 9600; /* B0 transition handled in rs_set_termios */ | |
1156 | ||
1157 | for (index = 0; index < BAUD_TABLE_LIMIT; index++) { | |
1158 | if (icom_acfg_baud[index] == baud) { | |
1159 | new_config3 = index; | |
1160 | break; | |
1161 | } | |
1162 | } | |
1163 | ||
1164 | uart_update_timeout(port, cflag, baud); | |
1165 | ||
1166 | /* CTS flow control flag and modem status interrupts */ | |
1167 | tmp_byte = readb(&(ICOM_PORT->dram->HDLCConfigReg)); | |
1168 | if (cflag & CRTSCTS) | |
1169 | tmp_byte |= HDLC_HDW_FLOW; | |
1170 | else | |
1171 | tmp_byte &= ~HDLC_HDW_FLOW; | |
1172 | writeb(tmp_byte, &(ICOM_PORT->dram->HDLCConfigReg)); | |
1173 | ||
1174 | /* | |
1175 | * Set up parity check flag | |
1176 | */ | |
1177 | ICOM_PORT->read_status_mask = SA_FLAGS_OVERRUN | SA_FL_RCV_DONE; | |
1178 | if (iflag & INPCK) | |
1179 | ICOM_PORT->read_status_mask |= | |
1180 | SA_FLAGS_FRAME_ERROR | SA_FLAGS_PARITY_ERROR; | |
1181 | ||
1182 | if ((iflag & BRKINT) || (iflag & PARMRK)) | |
1183 | ICOM_PORT->read_status_mask |= SA_FLAGS_BREAK_DET; | |
1184 | ||
1185 | /* | |
1186 | * Characters to ignore | |
1187 | */ | |
1188 | ICOM_PORT->ignore_status_mask = 0; | |
1189 | if (iflag & IGNPAR) | |
1190 | ICOM_PORT->ignore_status_mask |= | |
1191 | SA_FLAGS_PARITY_ERROR | SA_FLAGS_FRAME_ERROR; | |
1192 | if (iflag & IGNBRK) { | |
1193 | ICOM_PORT->ignore_status_mask |= SA_FLAGS_BREAK_DET; | |
1194 | /* | |
1195 | * If we're ignore parity and break indicators, ignore | |
1196 | * overruns too. (For real raw support). | |
1197 | */ | |
1198 | if (iflag & IGNPAR) | |
1199 | ICOM_PORT->ignore_status_mask |= SA_FLAGS_OVERRUN; | |
1200 | } | |
1201 | ||
1202 | /* | |
1203 | * !!! ignore all characters if CREAD is not set | |
1204 | */ | |
1205 | if ((cflag & CREAD) == 0) | |
1206 | ICOM_PORT->ignore_status_mask |= SA_FL_RCV_DONE; | |
1207 | ||
1208 | /* Turn off Receiver to prepare for reset */ | |
1209 | writeb(CMD_RCV_DISABLE, &ICOM_PORT->dram->CmdReg); | |
1210 | ||
1211 | for (index = 0; index < 10; index++) { | |
1212 | if (readb(&ICOM_PORT->dram->PrevCmdReg) == 0x00) { | |
1213 | break; | |
1214 | } | |
1215 | } | |
1216 | ||
1217 | /* clear all current buffers of data */ | |
1218 | for (rcv_buff = 0; rcv_buff < NUM_RBUFFS; rcv_buff++) { | |
1219 | ICOM_PORT->statStg->rcv[rcv_buff].flags = 0; | |
1220 | ICOM_PORT->statStg->rcv[rcv_buff].leLength = 0; | |
1221 | ICOM_PORT->statStg->rcv[rcv_buff].WorkingLength = | |
1222 | (unsigned short int) cpu_to_le16(RCV_BUFF_SZ); | |
1223 | } | |
1224 | ||
1225 | for (xmit_buff = 0; xmit_buff < NUM_XBUFFS; xmit_buff++) { | |
1226 | ICOM_PORT->statStg->xmit[xmit_buff].flags = 0; | |
1227 | } | |
1228 | ||
1229 | /* activate changes and start xmit and receiver here */ | |
1230 | /* Enable the receiver */ | |
1231 | writeb(new_config3, &(ICOM_PORT->dram->async_config3)); | |
1232 | writeb(new_config2, &(ICOM_PORT->dram->async_config2)); | |
1233 | tmp_byte = readb(&(ICOM_PORT->dram->HDLCConfigReg)); | |
1234 | tmp_byte |= HDLC_PPP_PURE_ASYNC | HDLC_FF_FILL; | |
1235 | writeb(tmp_byte, &(ICOM_PORT->dram->HDLCConfigReg)); | |
1236 | writeb(0x04, &(ICOM_PORT->dram->FlagFillIdleTimer)); /* 0.5 seconds */ | |
1237 | writeb(0xFF, &(ICOM_PORT->dram->ier)); /* enable modem signal interrupts */ | |
1238 | ||
1239 | /* reset processor */ | |
1240 | writeb(CMD_RESTART, &ICOM_PORT->dram->CmdReg); | |
1241 | ||
1242 | for (index = 0; index < 10; index++) { | |
1243 | if (readb(&ICOM_PORT->dram->CmdReg) == 0x00) { | |
1244 | break; | |
1245 | } | |
1246 | } | |
1247 | ||
1248 | /* Enable Transmitter and Reciever */ | |
1249 | offset = | |
1250 | (unsigned long) &ICOM_PORT->statStg->rcv[0] - | |
1251 | (unsigned long) ICOM_PORT->statStg; | |
1252 | writel(ICOM_PORT->statStg_pci + offset, | |
1253 | &ICOM_PORT->dram->RcvStatusAddr); | |
1254 | ICOM_PORT->next_rcv = 0; | |
1255 | ICOM_PORT->put_length = 0; | |
1256 | *ICOM_PORT->xmitRestart = 0; | |
1257 | writel(ICOM_PORT->xmitRestart_pci, | |
1258 | &ICOM_PORT->dram->XmitStatusAddr); | |
1259 | trace(ICOM_PORT, "XR_ENAB", 0); | |
1260 | writeb(CMD_XMIT_RCV_ENABLE, &ICOM_PORT->dram->CmdReg); | |
1261 | ||
1262 | spin_unlock_irqrestore(&port->lock, flags); | |
1263 | } | |
1264 | ||
1265 | static const char *icom_type(struct uart_port *port) | |
1266 | { | |
1267 | return "icom"; | |
1268 | } | |
1269 | ||
1270 | static void icom_release_port(struct uart_port *port) | |
1271 | { | |
1272 | } | |
1273 | ||
1274 | static int icom_request_port(struct uart_port *port) | |
1275 | { | |
1276 | return 0; | |
1277 | } | |
1278 | ||
1279 | static void icom_config_port(struct uart_port *port, int flags) | |
1280 | { | |
1281 | port->type = PORT_ICOM; | |
1282 | } | |
1283 | ||
1284 | static struct uart_ops icom_ops = { | |
1285 | .tx_empty = icom_tx_empty, | |
1286 | .set_mctrl = icom_set_mctrl, | |
1287 | .get_mctrl = icom_get_mctrl, | |
1288 | .stop_tx = icom_stop_tx, | |
1289 | .start_tx = icom_start_tx, | |
1290 | .send_xchar = icom_send_xchar, | |
1291 | .stop_rx = icom_stop_rx, | |
1292 | .enable_ms = icom_enable_ms, | |
1293 | .break_ctl = icom_break, | |
1294 | .startup = icom_open, | |
1295 | .shutdown = icom_close, | |
1296 | .set_termios = icom_set_termios, | |
1297 | .type = icom_type, | |
1298 | .release_port = icom_release_port, | |
1299 | .request_port = icom_request_port, | |
1300 | .config_port = icom_config_port, | |
1301 | }; | |
1302 | ||
1303 | #define ICOM_CONSOLE NULL | |
1304 | ||
1305 | static struct uart_driver icom_uart_driver = { | |
1306 | .owner = THIS_MODULE, | |
1307 | .driver_name = ICOM_DRIVER_NAME, | |
1308 | .dev_name = "ttyA", | |
1309 | .major = ICOM_MAJOR, | |
1310 | .minor = ICOM_MINOR_START, | |
1311 | .nr = NR_PORTS, | |
1312 | .cons = ICOM_CONSOLE, | |
1313 | }; | |
1314 | ||
1315 | static int __devinit icom_init_ports(struct icom_adapter *icom_adapter) | |
1316 | { | |
1317 | u32 subsystem_id = icom_adapter->subsystem_id; | |
1318 | int retval = 0; | |
1319 | int i; | |
1320 | struct icom_port *icom_port; | |
1321 | ||
1322 | if (icom_adapter->version == ADAPTER_V1) { | |
1323 | icom_adapter->numb_ports = 2; | |
1324 | ||
1325 | for (i = 0; i < 2; i++) { | |
1326 | icom_port = &icom_adapter->port_info[i]; | |
1327 | icom_port->port = i; | |
1328 | icom_port->status = ICOM_PORT_ACTIVE; | |
1329 | icom_port->imbed_modem = ICOM_UNKNOWN; | |
1330 | } | |
1331 | } else { | |
1332 | if (subsystem_id == PCI_DEVICE_ID_IBM_ICOM_FOUR_PORT_MODEL) { | |
1333 | icom_adapter->numb_ports = 4; | |
1334 | ||
1335 | for (i = 0; i < 4; i++) { | |
1336 | icom_port = &icom_adapter->port_info[i]; | |
1337 | ||
1338 | icom_port->port = i; | |
1339 | icom_port->status = ICOM_PORT_ACTIVE; | |
1340 | icom_port->imbed_modem = ICOM_IMBED_MODEM; | |
1341 | } | |
1342 | } else { | |
1343 | icom_adapter->numb_ports = 4; | |
1344 | ||
1345 | icom_adapter->port_info[0].port = 0; | |
1346 | icom_adapter->port_info[0].status = ICOM_PORT_ACTIVE; | |
1347 | ||
1348 | if (subsystem_id == | |
1349 | PCI_DEVICE_ID_IBM_ICOM_V2_ONE_PORT_RVX_ONE_PORT_MDM) { | |
1350 | icom_adapter->port_info[0].imbed_modem = ICOM_IMBED_MODEM; | |
1351 | } else { | |
1352 | icom_adapter->port_info[0].imbed_modem = ICOM_RVX; | |
1353 | } | |
1354 | ||
1355 | icom_adapter->port_info[1].status = ICOM_PORT_OFF; | |
1356 | ||
1357 | icom_adapter->port_info[2].port = 2; | |
1358 | icom_adapter->port_info[2].status = ICOM_PORT_ACTIVE; | |
1359 | icom_adapter->port_info[2].imbed_modem = ICOM_RVX; | |
1360 | icom_adapter->port_info[3].status = ICOM_PORT_OFF; | |
1361 | } | |
1362 | } | |
1363 | ||
1364 | return retval; | |
1365 | } | |
1366 | ||
1367 | static void icom_port_active(struct icom_port *icom_port, struct icom_adapter *icom_adapter, int port_num) | |
1368 | { | |
1369 | if (icom_adapter->version == ADAPTER_V1) { | |
1370 | icom_port->global_reg = icom_adapter->base_addr + 0x4000; | |
1371 | icom_port->int_reg = icom_adapter->base_addr + | |
1372 | 0x4004 + 2 - 2 * port_num; | |
1373 | } else { | |
1374 | icom_port->global_reg = icom_adapter->base_addr + 0x8000; | |
1375 | if (icom_port->port < 2) | |
1376 | icom_port->int_reg = icom_adapter->base_addr + | |
1377 | 0x8004 + 2 - 2 * icom_port->port; | |
1378 | else | |
1379 | icom_port->int_reg = icom_adapter->base_addr + | |
1380 | 0x8024 + 2 - 2 * (icom_port->port - 2); | |
1381 | } | |
1382 | } | |
1383 | static int __init icom_load_ports(struct icom_adapter *icom_adapter) | |
1384 | { | |
1385 | struct icom_port *icom_port; | |
1386 | int port_num; | |
1387 | int retval; | |
1388 | ||
1389 | for (port_num = 0; port_num < icom_adapter->numb_ports; port_num++) { | |
1390 | ||
1391 | icom_port = &icom_adapter->port_info[port_num]; | |
1392 | ||
1393 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
1394 | icom_port_active(icom_port, icom_adapter, port_num); | |
1395 | icom_port->dram = icom_adapter->base_addr + | |
1396 | 0x2000 * icom_port->port; | |
1397 | ||
1398 | icom_port->adapter = icom_adapter; | |
1399 | ||
1400 | /* get port memory */ | |
1401 | if ((retval = get_port_memory(icom_port)) != 0) { | |
1402 | dev_err(&icom_port->adapter->pci_dev->dev, | |
1403 | "Memory allocation for port FAILED\n"); | |
1404 | } | |
1405 | } | |
1406 | } | |
1407 | return 0; | |
1408 | } | |
1409 | ||
1410 | static int __devinit icom_alloc_adapter(struct icom_adapter | |
1411 | **icom_adapter_ref) | |
1412 | { | |
1413 | int adapter_count = 0; | |
1414 | struct icom_adapter *icom_adapter; | |
1415 | struct icom_adapter *cur_adapter_entry; | |
1416 | struct list_head *tmp; | |
1417 | ||
1418 | icom_adapter = (struct icom_adapter *) | |
8f31bb39 | 1419 | kzalloc(sizeof(struct icom_adapter), GFP_KERNEL); |
1da177e4 LT |
1420 | |
1421 | if (!icom_adapter) { | |
1422 | return -ENOMEM; | |
1423 | } | |
1424 | ||
1da177e4 LT |
1425 | list_for_each(tmp, &icom_adapter_head) { |
1426 | cur_adapter_entry = | |
1427 | list_entry(tmp, struct icom_adapter, | |
1428 | icom_adapter_entry); | |
1429 | if (cur_adapter_entry->index != adapter_count) { | |
1430 | break; | |
1431 | } | |
1432 | adapter_count++; | |
1433 | } | |
1434 | ||
1435 | icom_adapter->index = adapter_count; | |
1436 | list_add_tail(&icom_adapter->icom_adapter_entry, tmp); | |
1437 | ||
1438 | *icom_adapter_ref = icom_adapter; | |
1439 | return 0; | |
1440 | } | |
1441 | ||
1442 | static void icom_free_adapter(struct icom_adapter *icom_adapter) | |
1443 | { | |
1444 | list_del(&icom_adapter->icom_adapter_entry); | |
1445 | kfree(icom_adapter); | |
1446 | } | |
1447 | ||
1448 | static void icom_remove_adapter(struct icom_adapter *icom_adapter) | |
1449 | { | |
1450 | struct icom_port *icom_port; | |
1451 | int index; | |
1452 | ||
1453 | for (index = 0; index < icom_adapter->numb_ports; index++) { | |
1454 | icom_port = &icom_adapter->port_info[index]; | |
1455 | ||
1456 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
1457 | dev_info(&icom_adapter->pci_dev->dev, | |
1458 | "Device removed\n"); | |
1459 | ||
1460 | uart_remove_one_port(&icom_uart_driver, | |
1461 | &icom_port->uart_port); | |
1462 | ||
1463 | /* be sure that DTR and RTS are dropped */ | |
1464 | writeb(0x00, &icom_port->dram->osr); | |
1465 | ||
1466 | /* Wait 0.1 Sec for simple Init to complete */ | |
1467 | msleep(100); | |
1468 | ||
1469 | /* Stop proccessor */ | |
1470 | stop_processor(icom_port); | |
1471 | ||
1472 | free_port_memory(icom_port); | |
1473 | } | |
1474 | } | |
1475 | ||
1476 | free_irq(icom_adapter->irq_number, (void *) icom_adapter); | |
1477 | iounmap(icom_adapter->base_addr); | |
1478 | icom_free_adapter(icom_adapter); | |
1479 | pci_release_regions(icom_adapter->pci_dev); | |
1480 | } | |
1481 | ||
1482 | static void icom_kobj_release(struct kobject *kobj) | |
1483 | { | |
1484 | struct icom_adapter *icom_adapter; | |
1485 | ||
1486 | icom_adapter = to_icom_adapter(kobj); | |
1487 | icom_remove_adapter(icom_adapter); | |
1488 | } | |
1489 | ||
1490 | static struct kobj_type icom_kobj_type = { | |
1491 | .release = icom_kobj_release, | |
1492 | }; | |
1493 | ||
1494 | static int __devinit icom_probe(struct pci_dev *dev, | |
1495 | const struct pci_device_id *ent) | |
1496 | { | |
1497 | int index; | |
1498 | unsigned int command_reg; | |
1499 | int retval; | |
1500 | struct icom_adapter *icom_adapter; | |
1501 | struct icom_port *icom_port; | |
1502 | ||
1503 | retval = pci_enable_device(dev); | |
1504 | if (retval) { | |
1505 | dev_err(&dev->dev, "Device enable FAILED\n"); | |
1506 | return retval; | |
1507 | } | |
1508 | ||
1509 | if ( (retval = pci_request_regions(dev, "icom"))) { | |
87c18aa9 | 1510 | dev_err(&dev->dev, "pci_request_regions FAILED\n"); |
1da177e4 LT |
1511 | pci_disable_device(dev); |
1512 | return retval; | |
1513 | } | |
1514 | ||
1515 | pci_set_master(dev); | |
1516 | ||
1517 | if ( (retval = pci_read_config_dword(dev, PCI_COMMAND, &command_reg))) { | |
1518 | dev_err(&dev->dev, "PCI Config read FAILED\n"); | |
1519 | return retval; | |
1520 | } | |
1521 | ||
1522 | pci_write_config_dword(dev, PCI_COMMAND, | |
1523 | command_reg | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | |
1524 | | PCI_COMMAND_PARITY | PCI_COMMAND_SERR); | |
1525 | ||
1526 | if (ent->driver_data == ADAPTER_V1) { | |
1527 | pci_write_config_dword(dev, 0x44, 0x8300830A); | |
1528 | } else { | |
1529 | pci_write_config_dword(dev, 0x44, 0x42004200); | |
1530 | pci_write_config_dword(dev, 0x48, 0x42004200); | |
1531 | } | |
1532 | ||
1533 | ||
1534 | retval = icom_alloc_adapter(&icom_adapter); | |
1535 | if (retval) { | |
1536 | dev_err(&dev->dev, "icom_alloc_adapter FAILED\n"); | |
1537 | retval = -EIO; | |
1538 | goto probe_exit0; | |
1539 | } | |
1540 | ||
1541 | icom_adapter->base_addr_pci = pci_resource_start(dev, 0); | |
1542 | icom_adapter->irq_number = dev->irq; | |
1543 | icom_adapter->pci_dev = dev; | |
1544 | icom_adapter->version = ent->driver_data; | |
1545 | icom_adapter->subsystem_id = ent->subdevice; | |
1546 | ||
1547 | ||
1548 | retval = icom_init_ports(icom_adapter); | |
1549 | if (retval) { | |
1550 | dev_err(&dev->dev, "Port configuration failed\n"); | |
1551 | goto probe_exit1; | |
1552 | } | |
1553 | ||
1554 | icom_adapter->base_addr = ioremap(icom_adapter->base_addr_pci, | |
1555 | pci_resource_len(dev, 0)); | |
1556 | ||
1557 | if (!icom_adapter->base_addr) | |
1558 | goto probe_exit1; | |
1559 | ||
1560 | /* save off irq and request irq line */ | |
1561 | if ( (retval = request_irq(dev->irq, icom_interrupt, | |
40663cc7 | 1562 | IRQF_DISABLED | IRQF_SHARED, ICOM_DRIVER_NAME, |
1da177e4 LT |
1563 | (void *) icom_adapter))) { |
1564 | goto probe_exit2; | |
1565 | } | |
1566 | ||
1567 | retval = icom_load_ports(icom_adapter); | |
1568 | ||
1569 | for (index = 0; index < icom_adapter->numb_ports; index++) { | |
1570 | icom_port = &icom_adapter->port_info[index]; | |
1571 | ||
1572 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
1573 | icom_port->uart_port.irq = icom_port->adapter->irq_number; | |
1574 | icom_port->uart_port.type = PORT_ICOM; | |
1575 | icom_port->uart_port.iotype = UPIO_MEM; | |
1576 | icom_port->uart_port.membase = | |
1577 | (char *) icom_adapter->base_addr_pci; | |
1578 | icom_port->uart_port.fifosize = 16; | |
1579 | icom_port->uart_port.ops = &icom_ops; | |
1580 | icom_port->uart_port.line = | |
1581 | icom_port->port + icom_adapter->index * 4; | |
1582 | if (uart_add_one_port (&icom_uart_driver, &icom_port->uart_port)) { | |
1583 | icom_port->status = ICOM_PORT_OFF; | |
1584 | dev_err(&dev->dev, "Device add failed\n"); | |
1585 | } else | |
1586 | dev_info(&dev->dev, "Device added\n"); | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | kobject_init(&icom_adapter->kobj); | |
1591 | icom_adapter->kobj.ktype = &icom_kobj_type; | |
1592 | return 0; | |
1593 | ||
1594 | probe_exit2: | |
1595 | iounmap(icom_adapter->base_addr); | |
1596 | probe_exit1: | |
1597 | icom_free_adapter(icom_adapter); | |
1598 | ||
1599 | probe_exit0: | |
1600 | pci_release_regions(dev); | |
1601 | pci_disable_device(dev); | |
1602 | ||
1603 | return retval; | |
1604 | ||
1605 | ||
1606 | } | |
1607 | ||
1608 | static void __devexit icom_remove(struct pci_dev *dev) | |
1609 | { | |
1610 | struct icom_adapter *icom_adapter; | |
1611 | struct list_head *tmp; | |
1612 | ||
1613 | list_for_each(tmp, &icom_adapter_head) { | |
1614 | icom_adapter = list_entry(tmp, struct icom_adapter, | |
1615 | icom_adapter_entry); | |
1616 | if (icom_adapter->pci_dev == dev) { | |
1617 | kobject_put(&icom_adapter->kobj); | |
1618 | return; | |
1619 | } | |
1620 | } | |
1621 | ||
1622 | dev_err(&dev->dev, "Unable to find device to remove\n"); | |
1623 | } | |
1624 | ||
1625 | static struct pci_driver icom_pci_driver = { | |
1626 | .name = ICOM_DRIVER_NAME, | |
1627 | .id_table = icom_pci_table, | |
1628 | .probe = icom_probe, | |
1629 | .remove = __devexit_p(icom_remove), | |
1630 | }; | |
1631 | ||
1632 | static int __init icom_init(void) | |
1633 | { | |
1634 | int ret; | |
1635 | ||
1636 | spin_lock_init(&icom_lock); | |
1637 | ||
1638 | ret = uart_register_driver(&icom_uart_driver); | |
1639 | if (ret) | |
1640 | return ret; | |
1641 | ||
1642 | ret = pci_register_driver(&icom_pci_driver); | |
1643 | ||
1644 | if (ret < 0) | |
1645 | uart_unregister_driver(&icom_uart_driver); | |
1646 | ||
1647 | return ret; | |
1648 | } | |
1649 | ||
1650 | static void __exit icom_exit(void) | |
1651 | { | |
1652 | pci_unregister_driver(&icom_pci_driver); | |
1653 | uart_unregister_driver(&icom_uart_driver); | |
1654 | } | |
1655 | ||
1656 | module_init(icom_init); | |
1657 | module_exit(icom_exit); | |
1658 | ||
1659 | #ifdef ICOM_TRACE | |
1660 | static inline void trace(struct icom_port *icom_port, char *trace_pt, | |
1661 | unsigned long trace_data) | |
1662 | { | |
1663 | dev_info(&icom_port->adapter->pci_dev->dev, ":%d:%s - %lx\n", | |
1664 | icom_port->port, trace_pt, trace_data); | |
1665 | } | |
1666 | #endif | |
1667 | ||
1668 | MODULE_AUTHOR("Michael Anderson <mjanders@us.ibm.com>"); | |
1669 | MODULE_DESCRIPTION("IBM iSeries Serial IOA driver"); | |
1670 | MODULE_SUPPORTED_DEVICE | |
1671 | ("IBM iSeries 2745, 2771, 2772, 2742, 2793 and 2805 Communications adapters"); | |
1672 | MODULE_LICENSE("GPL"); | |
1673 |