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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> | |
1da177e4 | 50 | #include <linux/spinlock.h> |
15f2bbb2 | 51 | #include <linux/kref.h> |
1da177e4 LT |
52 | #include <linux/firmware.h> |
53 | #include <linux/bitops.h> | |
54 | ||
55 | #include <asm/system.h> | |
1da177e4 LT |
56 | #include <asm/io.h> |
57 | #include <asm/irq.h> | |
58 | #include <asm/uaccess.h> | |
59 | ||
60 | #include "icom.h" | |
61 | ||
62 | /*#define ICOM_TRACE enable port trace capabilities */ | |
63 | ||
64 | #define ICOM_DRIVER_NAME "icom" | |
65 | #define ICOM_VERSION_STR "1.3.1" | |
66 | #define NR_PORTS 128 | |
67 | #define ICOM_PORT ((struct icom_port *)port) | |
15f2bbb2 | 68 | #define to_icom_adapter(d) container_of(d, struct icom_adapter, kref) |
1da177e4 LT |
69 | |
70 | static const struct pci_device_id icom_pci_table[] = { | |
71 | { | |
bc88d5d4 | 72 | .vendor = PCI_VENDOR_ID_IBM, |
73 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_1, | |
74 | .subvendor = PCI_ANY_ID, | |
75 | .subdevice = PCI_ANY_ID, | |
76 | .driver_data = ADAPTER_V1, | |
77 | }, | |
1da177e4 | 78 | { |
bc88d5d4 | 79 | .vendor = PCI_VENDOR_ID_IBM, |
80 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_2, | |
81 | .subvendor = PCI_VENDOR_ID_IBM, | |
82 | .subdevice = PCI_DEVICE_ID_IBM_ICOM_V2_TWO_PORTS_RVX, | |
83 | .driver_data = ADAPTER_V2, | |
84 | }, | |
1da177e4 | 85 | { |
bc88d5d4 | 86 | .vendor = PCI_VENDOR_ID_IBM, |
87 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_2, | |
88 | .subvendor = PCI_VENDOR_ID_IBM, | |
89 | .subdevice = PCI_DEVICE_ID_IBM_ICOM_V2_ONE_PORT_RVX_ONE_PORT_MDM, | |
90 | .driver_data = ADAPTER_V2, | |
91 | }, | |
1da177e4 | 92 | { |
bc88d5d4 | 93 | .vendor = PCI_VENDOR_ID_IBM, |
94 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_2, | |
95 | .subvendor = PCI_VENDOR_ID_IBM, | |
96 | .subdevice = PCI_DEVICE_ID_IBM_ICOM_FOUR_PORT_MODEL, | |
97 | .driver_data = ADAPTER_V2, | |
98 | }, | |
99 | { | |
100 | .vendor = PCI_VENDOR_ID_IBM, | |
101 | .device = PCI_DEVICE_ID_IBM_ICOM_DEV_ID_2, | |
102 | .subvendor = PCI_VENDOR_ID_IBM, | |
103 | .subdevice = PCI_DEVICE_ID_IBM_ICOM_V2_ONE_PORT_RVX_ONE_PORT_MDM_PCIE, | |
104 | .driver_data = ADAPTER_V2, | |
105 | }, | |
1da177e4 LT |
106 | {} |
107 | }; | |
108 | ||
109 | struct lookup_proc_table start_proc[4] = { | |
110 | {NULL, ICOM_CONTROL_START_A}, | |
111 | {NULL, ICOM_CONTROL_START_B}, | |
112 | {NULL, ICOM_CONTROL_START_C}, | |
113 | {NULL, ICOM_CONTROL_START_D} | |
114 | }; | |
115 | ||
116 | ||
117 | struct lookup_proc_table stop_proc[4] = { | |
118 | {NULL, ICOM_CONTROL_STOP_A}, | |
119 | {NULL, ICOM_CONTROL_STOP_B}, | |
120 | {NULL, ICOM_CONTROL_STOP_C}, | |
121 | {NULL, ICOM_CONTROL_STOP_D} | |
122 | }; | |
123 | ||
124 | struct lookup_int_table int_mask_tbl[4] = { | |
125 | {NULL, ICOM_INT_MASK_PRC_A}, | |
126 | {NULL, ICOM_INT_MASK_PRC_B}, | |
127 | {NULL, ICOM_INT_MASK_PRC_C}, | |
128 | {NULL, ICOM_INT_MASK_PRC_D}, | |
129 | }; | |
130 | ||
131 | ||
132 | MODULE_DEVICE_TABLE(pci, icom_pci_table); | |
133 | ||
134 | static LIST_HEAD(icom_adapter_head); | |
135 | ||
136 | /* spinlock for adapter initialization and changing adapter operations */ | |
137 | static spinlock_t icom_lock; | |
138 | ||
139 | #ifdef ICOM_TRACE | |
257a6e8c BL |
140 | static inline void trace(struct icom_port *icom_port, char *trace_pt, |
141 | unsigned long trace_data) | |
142 | { | |
143 | dev_info(&icom_port->adapter->pci_dev->dev, ":%d:%s - %lx\n", | |
144 | icom_port->port, trace_pt, trace_data); | |
145 | } | |
1da177e4 LT |
146 | #else |
147 | static inline void trace(struct icom_port *icom_port, char *trace_pt, unsigned long trace_data) {}; | |
148 | #endif | |
15f2bbb2 | 149 | static void icom_kref_release(struct kref *kref); |
1da177e4 LT |
150 | |
151 | static void free_port_memory(struct icom_port *icom_port) | |
152 | { | |
153 | struct pci_dev *dev = icom_port->adapter->pci_dev; | |
154 | ||
155 | trace(icom_port, "RET_PORT_MEM", 0); | |
156 | if (icom_port->recv_buf) { | |
157 | pci_free_consistent(dev, 4096, icom_port->recv_buf, | |
158 | icom_port->recv_buf_pci); | |
159 | icom_port->recv_buf = NULL; | |
160 | } | |
161 | if (icom_port->xmit_buf) { | |
162 | pci_free_consistent(dev, 4096, icom_port->xmit_buf, | |
163 | icom_port->xmit_buf_pci); | |
164 | icom_port->xmit_buf = NULL; | |
165 | } | |
166 | if (icom_port->statStg) { | |
167 | pci_free_consistent(dev, 4096, icom_port->statStg, | |
168 | icom_port->statStg_pci); | |
169 | icom_port->statStg = NULL; | |
170 | } | |
171 | ||
172 | if (icom_port->xmitRestart) { | |
173 | pci_free_consistent(dev, 4096, icom_port->xmitRestart, | |
174 | icom_port->xmitRestart_pci); | |
175 | icom_port->xmitRestart = NULL; | |
176 | } | |
177 | } | |
178 | ||
98f85d30 | 179 | static int __devinit get_port_memory(struct icom_port *icom_port) |
1da177e4 LT |
180 | { |
181 | int index; | |
182 | unsigned long stgAddr; | |
183 | unsigned long startStgAddr; | |
184 | unsigned long offset; | |
185 | struct pci_dev *dev = icom_port->adapter->pci_dev; | |
186 | ||
187 | icom_port->xmit_buf = | |
188 | pci_alloc_consistent(dev, 4096, &icom_port->xmit_buf_pci); | |
189 | if (!icom_port->xmit_buf) { | |
190 | dev_err(&dev->dev, "Can not allocate Transmit buffer\n"); | |
191 | return -ENOMEM; | |
192 | } | |
193 | ||
194 | trace(icom_port, "GET_PORT_MEM", | |
195 | (unsigned long) icom_port->xmit_buf); | |
196 | ||
197 | icom_port->recv_buf = | |
198 | pci_alloc_consistent(dev, 4096, &icom_port->recv_buf_pci); | |
199 | if (!icom_port->recv_buf) { | |
200 | dev_err(&dev->dev, "Can not allocate Receive buffer\n"); | |
201 | free_port_memory(icom_port); | |
202 | return -ENOMEM; | |
203 | } | |
204 | trace(icom_port, "GET_PORT_MEM", | |
205 | (unsigned long) icom_port->recv_buf); | |
206 | ||
207 | icom_port->statStg = | |
208 | pci_alloc_consistent(dev, 4096, &icom_port->statStg_pci); | |
209 | if (!icom_port->statStg) { | |
210 | dev_err(&dev->dev, "Can not allocate Status buffer\n"); | |
211 | free_port_memory(icom_port); | |
212 | return -ENOMEM; | |
213 | } | |
214 | trace(icom_port, "GET_PORT_MEM", | |
215 | (unsigned long) icom_port->statStg); | |
216 | ||
217 | icom_port->xmitRestart = | |
218 | pci_alloc_consistent(dev, 4096, &icom_port->xmitRestart_pci); | |
219 | if (!icom_port->xmitRestart) { | |
220 | dev_err(&dev->dev, | |
221 | "Can not allocate xmit Restart buffer\n"); | |
222 | free_port_memory(icom_port); | |
223 | return -ENOMEM; | |
224 | } | |
225 | ||
226 | memset(icom_port->statStg, 0, 4096); | |
227 | ||
228 | /* FODs: Frame Out Descriptor Queue, this is a FIFO queue that | |
229 | indicates that frames are to be transmitted | |
230 | */ | |
231 | ||
232 | stgAddr = (unsigned long) icom_port->statStg; | |
233 | for (index = 0; index < NUM_XBUFFS; index++) { | |
234 | trace(icom_port, "FOD_ADDR", stgAddr); | |
235 | stgAddr = stgAddr + sizeof(icom_port->statStg->xmit[0]); | |
236 | 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_ADDR", stgAddr); | |
241 | trace(icom_port, "FOD_XBUFF", | |
242 | (unsigned long) icom_port->xmit_buf); | |
243 | icom_port->statStg->xmit[index].leBuffer = | |
244 | cpu_to_le32(icom_port->xmit_buf_pci); | |
245 | } else if (index == (NUM_XBUFFS - 1)) { | |
246 | memset(&icom_port->statStg->xmit[index], 0, sizeof(struct xmit_status_area)); | |
247 | icom_port->statStg->xmit[index].leLengthASD = | |
248 | (unsigned short int) cpu_to_le16(XMIT_BUFF_SZ); | |
249 | trace(icom_port, "FOD_XBUFF", | |
250 | (unsigned long) icom_port->xmit_buf); | |
251 | icom_port->statStg->xmit[index].leBuffer = | |
252 | cpu_to_le32(icom_port->xmit_buf_pci); | |
253 | } else { | |
254 | memset(&icom_port->statStg->xmit[index], 0, sizeof(struct xmit_status_area)); | |
255 | } | |
256 | } | |
257 | /* FIDs */ | |
258 | startStgAddr = stgAddr; | |
259 | ||
260 | /* fill in every entry, even if no buffer */ | |
261 | for (index = 0; index < NUM_RBUFFS; index++) { | |
262 | trace(icom_port, "FID_ADDR", stgAddr); | |
263 | stgAddr = stgAddr + sizeof(icom_port->statStg->rcv[0]); | |
264 | icom_port->statStg->rcv[index].leLength = 0; | |
265 | icom_port->statStg->rcv[index].WorkingLength = | |
266 | (unsigned short int) cpu_to_le16(RCV_BUFF_SZ); | |
267 | if (index < (NUM_RBUFFS - 1) ) { | |
268 | offset = stgAddr - (unsigned long) icom_port->statStg; | |
269 | icom_port->statStg->rcv[index].leNext = | |
270 | cpu_to_le32(icom_port-> statStg_pci + offset); | |
271 | trace(icom_port, "FID_RBUFF", | |
272 | (unsigned long) icom_port->recv_buf); | |
273 | icom_port->statStg->rcv[index].leBuffer = | |
274 | cpu_to_le32(icom_port->recv_buf_pci); | |
275 | } else if (index == (NUM_RBUFFS -1) ) { | |
276 | offset = startStgAddr - (unsigned long) icom_port->statStg; | |
277 | icom_port->statStg->rcv[index].leNext = | |
278 | cpu_to_le32(icom_port-> statStg_pci + offset); | |
279 | trace(icom_port, "FID_RBUFF", | |
280 | (unsigned long) icom_port->recv_buf + 2048); | |
281 | icom_port->statStg->rcv[index].leBuffer = | |
282 | cpu_to_le32(icom_port->recv_buf_pci + 2048); | |
283 | } else { | |
284 | icom_port->statStg->rcv[index].leNext = 0; | |
285 | icom_port->statStg->rcv[index].leBuffer = 0; | |
286 | } | |
287 | } | |
288 | ||
289 | return 0; | |
290 | } | |
291 | ||
292 | static void stop_processor(struct icom_port *icom_port) | |
293 | { | |
294 | unsigned long temp; | |
295 | unsigned long flags; | |
296 | int port; | |
297 | ||
298 | spin_lock_irqsave(&icom_lock, flags); | |
299 | ||
300 | port = icom_port->port; | |
301 | if (port == 0 || port == 1) | |
302 | stop_proc[port].global_control_reg = &icom_port->global_reg->control; | |
303 | else | |
304 | stop_proc[port].global_control_reg = &icom_port->global_reg->control_2; | |
305 | ||
306 | ||
307 | if (port < 4) { | |
308 | temp = readl(stop_proc[port].global_control_reg); | |
309 | temp = | |
75e3a6ae | 310 | (temp & ~start_proc[port].processor_id) | stop_proc[port].processor_id; |
1da177e4 LT |
311 | writel(temp, stop_proc[port].global_control_reg); |
312 | ||
313 | /* write flush */ | |
314 | readl(stop_proc[port].global_control_reg); | |
315 | } else { | |
316 | dev_err(&icom_port->adapter->pci_dev->dev, | |
317 | "Invalid port assignment\n"); | |
318 | } | |
319 | ||
320 | spin_unlock_irqrestore(&icom_lock, flags); | |
321 | } | |
322 | ||
323 | static void start_processor(struct icom_port *icom_port) | |
324 | { | |
325 | unsigned long temp; | |
326 | unsigned long flags; | |
327 | int port; | |
328 | ||
329 | spin_lock_irqsave(&icom_lock, flags); | |
330 | ||
331 | port = icom_port->port; | |
332 | if (port == 0 || port == 1) | |
333 | start_proc[port].global_control_reg = &icom_port->global_reg->control; | |
334 | else | |
335 | start_proc[port].global_control_reg = &icom_port->global_reg->control_2; | |
336 | if (port < 4) { | |
337 | temp = readl(start_proc[port].global_control_reg); | |
338 | temp = | |
75e3a6ae | 339 | (temp & ~stop_proc[port].processor_id) | start_proc[port].processor_id; |
1da177e4 LT |
340 | writel(temp, start_proc[port].global_control_reg); |
341 | ||
342 | /* write flush */ | |
343 | readl(start_proc[port].global_control_reg); | |
344 | } else { | |
345 | dev_err(&icom_port->adapter->pci_dev->dev, | |
346 | "Invalid port assignment\n"); | |
347 | } | |
348 | ||
349 | spin_unlock_irqrestore(&icom_lock, flags); | |
350 | } | |
351 | ||
352 | static void load_code(struct icom_port *icom_port) | |
353 | { | |
354 | const struct firmware *fw; | |
355 | char __iomem *iram_ptr; | |
356 | int index; | |
357 | int status = 0; | |
358 | void __iomem *dram_ptr = icom_port->dram; | |
359 | dma_addr_t temp_pci; | |
360 | unsigned char *new_page = NULL; | |
361 | unsigned char cable_id = NO_CABLE; | |
362 | struct pci_dev *dev = icom_port->adapter->pci_dev; | |
363 | ||
364 | /* Clear out any pending interrupts */ | |
365 | writew(0x3FFF, icom_port->int_reg); | |
366 | ||
367 | trace(icom_port, "CLEAR_INTERRUPTS", 0); | |
368 | ||
369 | /* Stop processor */ | |
370 | stop_processor(icom_port); | |
371 | ||
372 | /* Zero out DRAM */ | |
373 | memset_io(dram_ptr, 0, 512); | |
374 | ||
375 | /* Load Call Setup into Adapter */ | |
376 | if (request_firmware(&fw, "icom_call_setup.bin", &dev->dev) < 0) { | |
377 | dev_err(&dev->dev,"Unable to load icom_call_setup.bin firmware image\n"); | |
378 | status = -1; | |
379 | goto load_code_exit; | |
380 | } | |
381 | ||
382 | if (fw->size > ICOM_DCE_IRAM_OFFSET) { | |
383 | dev_err(&dev->dev, "Invalid firmware image for icom_call_setup.bin found.\n"); | |
384 | release_firmware(fw); | |
385 | status = -1; | |
386 | goto load_code_exit; | |
387 | } | |
388 | ||
389 | iram_ptr = (char __iomem *)icom_port->dram + ICOM_IRAM_OFFSET; | |
390 | for (index = 0; index < fw->size; index++) | |
391 | writeb(fw->data[index], &iram_ptr[index]); | |
392 | ||
393 | release_firmware(fw); | |
394 | ||
395 | /* Load Resident DCE portion of Adapter */ | |
396 | if (request_firmware(&fw, "icom_res_dce.bin", &dev->dev) < 0) { | |
397 | dev_err(&dev->dev,"Unable to load icom_res_dce.bin firmware image\n"); | |
398 | status = -1; | |
399 | goto load_code_exit; | |
400 | } | |
401 | ||
402 | if (fw->size > ICOM_IRAM_SIZE) { | |
403 | dev_err(&dev->dev, "Invalid firmware image for icom_res_dce.bin found.\n"); | |
404 | release_firmware(fw); | |
405 | status = -1; | |
406 | goto load_code_exit; | |
407 | } | |
408 | ||
409 | iram_ptr = (char __iomem *) icom_port->dram + ICOM_IRAM_OFFSET; | |
410 | for (index = ICOM_DCE_IRAM_OFFSET; index < fw->size; index++) | |
411 | writeb(fw->data[index], &iram_ptr[index]); | |
412 | ||
413 | release_firmware(fw); | |
414 | ||
415 | /* Set Hardware level */ | |
aba6593b | 416 | if (icom_port->adapter->version == ADAPTER_V2) |
1da177e4 LT |
417 | writeb(V2_HARDWARE, &(icom_port->dram->misc_flags)); |
418 | ||
419 | /* Start the processor in Adapter */ | |
420 | start_processor(icom_port); | |
421 | ||
422 | writeb((HDLC_PPP_PURE_ASYNC | HDLC_FF_FILL), | |
423 | &(icom_port->dram->HDLCConfigReg)); | |
424 | writeb(0x04, &(icom_port->dram->FlagFillIdleTimer)); /* 0.5 seconds */ | |
425 | writeb(0x00, &(icom_port->dram->CmdReg)); | |
426 | writeb(0x10, &(icom_port->dram->async_config3)); | |
427 | writeb((ICOM_ACFG_DRIVE1 | ICOM_ACFG_NO_PARITY | ICOM_ACFG_8BPC | | |
428 | ICOM_ACFG_1STOP_BIT), &(icom_port->dram->async_config2)); | |
429 | ||
430 | /*Set up data in icom DRAM to indicate where personality | |
431 | *code is located and its length. | |
432 | */ | |
433 | new_page = pci_alloc_consistent(dev, 4096, &temp_pci); | |
434 | ||
435 | if (!new_page) { | |
436 | dev_err(&dev->dev, "Can not allocate DMA buffer\n"); | |
437 | status = -1; | |
438 | goto load_code_exit; | |
439 | } | |
440 | ||
441 | if (request_firmware(&fw, "icom_asc.bin", &dev->dev) < 0) { | |
442 | dev_err(&dev->dev,"Unable to load icom_asc.bin firmware image\n"); | |
443 | status = -1; | |
444 | goto load_code_exit; | |
445 | } | |
446 | ||
447 | if (fw->size > ICOM_DCE_IRAM_OFFSET) { | |
448 | dev_err(&dev->dev, "Invalid firmware image for icom_asc.bin found.\n"); | |
449 | release_firmware(fw); | |
450 | status = -1; | |
451 | goto load_code_exit; | |
452 | } | |
453 | ||
454 | for (index = 0; index < fw->size; index++) | |
455 | new_page[index] = fw->data[index]; | |
456 | ||
457 | release_firmware(fw); | |
458 | ||
459 | writeb((char) ((fw->size + 16)/16), &icom_port->dram->mac_length); | |
460 | writel(temp_pci, &icom_port->dram->mac_load_addr); | |
461 | ||
462 | /*Setting the syncReg to 0x80 causes adapter to start downloading | |
463 | the personality code into adapter instruction RAM. | |
464 | Once code is loaded, it will begin executing and, based on | |
465 | information provided above, will start DMAing data from | |
466 | shared memory to adapter DRAM. | |
467 | */ | |
468 | /* the wait loop below verifies this write operation has been done | |
469 | and processed | |
470 | */ | |
471 | writeb(START_DOWNLOAD, &icom_port->dram->sync); | |
472 | ||
473 | /* Wait max 1 Sec for data download and processor to start */ | |
474 | for (index = 0; index < 10; index++) { | |
475 | msleep(100); | |
476 | if (readb(&icom_port->dram->misc_flags) & ICOM_HDW_ACTIVE) | |
477 | break; | |
478 | } | |
479 | ||
480 | if (index == 10) | |
481 | status = -1; | |
482 | ||
483 | /* | |
484 | * check Cable ID | |
485 | */ | |
486 | cable_id = readb(&icom_port->dram->cable_id); | |
487 | ||
488 | if (cable_id & ICOM_CABLE_ID_VALID) { | |
489 | /* Get cable ID into the lower 4 bits (standard form) */ | |
490 | cable_id = (cable_id & ICOM_CABLE_ID_MASK) >> 4; | |
491 | icom_port->cable_id = cable_id; | |
492 | } else { | |
493 | dev_err(&dev->dev,"Invalid or no cable attached\n"); | |
494 | icom_port->cable_id = NO_CABLE; | |
495 | } | |
496 | ||
497 | load_code_exit: | |
498 | ||
499 | if (status != 0) { | |
500 | /* Clear out any pending interrupts */ | |
501 | writew(0x3FFF, icom_port->int_reg); | |
502 | ||
503 | /* Turn off port */ | |
504 | writeb(ICOM_DISABLE, &(icom_port->dram->disable)); | |
505 | ||
506 | /* Stop processor */ | |
507 | stop_processor(icom_port); | |
508 | ||
509 | dev_err(&icom_port->adapter->pci_dev->dev,"Port not opertional\n"); | |
510 | } | |
511 | ||
75e3a6ae BL |
512 | if (new_page != NULL) |
513 | pci_free_consistent(dev, 4096, new_page, temp_pci); | |
1da177e4 LT |
514 | } |
515 | ||
516 | static int startup(struct icom_port *icom_port) | |
517 | { | |
518 | unsigned long temp; | |
519 | unsigned char cable_id, raw_cable_id; | |
520 | unsigned long flags; | |
521 | int port; | |
522 | ||
523 | trace(icom_port, "STARTUP", 0); | |
524 | ||
525 | if (!icom_port->dram) { | |
526 | /* should NEVER be NULL */ | |
527 | dev_err(&icom_port->adapter->pci_dev->dev, | |
528 | "Unusable Port, port configuration missing\n"); | |
529 | return -ENODEV; | |
530 | } | |
531 | ||
532 | /* | |
533 | * check Cable ID | |
534 | */ | |
535 | raw_cable_id = readb(&icom_port->dram->cable_id); | |
536 | trace(icom_port, "CABLE_ID", raw_cable_id); | |
537 | ||
538 | /* Get cable ID into the lower 4 bits (standard form) */ | |
539 | cable_id = (raw_cable_id & ICOM_CABLE_ID_MASK) >> 4; | |
540 | ||
541 | /* Check for valid Cable ID */ | |
542 | if (!(raw_cable_id & ICOM_CABLE_ID_VALID) || | |
543 | (cable_id != icom_port->cable_id)) { | |
544 | ||
545 | /* reload adapter code, pick up any potential changes in cable id */ | |
546 | load_code(icom_port); | |
547 | ||
548 | /* still no sign of cable, error out */ | |
549 | raw_cable_id = readb(&icom_port->dram->cable_id); | |
550 | cable_id = (raw_cable_id & ICOM_CABLE_ID_MASK) >> 4; | |
551 | if (!(raw_cable_id & ICOM_CABLE_ID_VALID) || | |
552 | (icom_port->cable_id == NO_CABLE)) | |
553 | return -EIO; | |
554 | } | |
555 | ||
556 | /* | |
557 | * Finally, clear and enable interrupts | |
558 | */ | |
559 | spin_lock_irqsave(&icom_lock, flags); | |
560 | port = icom_port->port; | |
561 | if (port == 0 || port == 1) | |
562 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask; | |
563 | else | |
564 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask_2; | |
565 | ||
566 | if (port == 0 || port == 2) | |
567 | writew(0x00FF, icom_port->int_reg); | |
568 | else | |
569 | writew(0x3F00, icom_port->int_reg); | |
570 | if (port < 4) { | |
571 | temp = readl(int_mask_tbl[port].global_int_mask); | |
572 | writel(temp & ~int_mask_tbl[port].processor_id, int_mask_tbl[port].global_int_mask); | |
573 | ||
574 | /* write flush */ | |
575 | readl(int_mask_tbl[port].global_int_mask); | |
576 | } else { | |
577 | dev_err(&icom_port->adapter->pci_dev->dev, | |
578 | "Invalid port assignment\n"); | |
579 | } | |
580 | ||
581 | spin_unlock_irqrestore(&icom_lock, flags); | |
582 | return 0; | |
583 | } | |
584 | ||
585 | static void shutdown(struct icom_port *icom_port) | |
586 | { | |
587 | unsigned long temp; | |
588 | unsigned char cmdReg; | |
589 | unsigned long flags; | |
590 | int port; | |
591 | ||
592 | spin_lock_irqsave(&icom_lock, flags); | |
593 | trace(icom_port, "SHUTDOWN", 0); | |
594 | ||
595 | /* | |
596 | * disable all interrupts | |
597 | */ | |
598 | port = icom_port->port; | |
599 | if (port == 0 || port == 1) | |
600 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask; | |
601 | else | |
602 | int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask_2; | |
603 | ||
604 | if (port < 4) { | |
605 | temp = readl(int_mask_tbl[port].global_int_mask); | |
606 | writel(temp | int_mask_tbl[port].processor_id, int_mask_tbl[port].global_int_mask); | |
607 | ||
608 | /* write flush */ | |
609 | readl(int_mask_tbl[port].global_int_mask); | |
610 | } else { | |
611 | dev_err(&icom_port->adapter->pci_dev->dev, | |
612 | "Invalid port assignment\n"); | |
613 | } | |
614 | spin_unlock_irqrestore(&icom_lock, flags); | |
615 | ||
616 | /* | |
617 | * disable break condition | |
618 | */ | |
619 | cmdReg = readb(&icom_port->dram->CmdReg); | |
1607acae | 620 | if (cmdReg & CMD_SND_BREAK) { |
1da177e4 LT |
621 | writeb(cmdReg & ~CMD_SND_BREAK, &icom_port->dram->CmdReg); |
622 | } | |
623 | } | |
624 | ||
625 | static int icom_write(struct uart_port *port) | |
626 | { | |
627 | unsigned long data_count; | |
628 | unsigned char cmdReg; | |
629 | unsigned long offset; | |
ebd2c8f6 | 630 | int temp_tail = port->state->xmit.tail; |
1da177e4 LT |
631 | |
632 | trace(ICOM_PORT, "WRITE", 0); | |
633 | ||
634 | if (cpu_to_le16(ICOM_PORT->statStg->xmit[0].flags) & | |
635 | SA_FLAGS_READY_TO_XMIT) { | |
636 | trace(ICOM_PORT, "WRITE_FULL", 0); | |
637 | return 0; | |
638 | } | |
639 | ||
640 | data_count = 0; | |
ebd2c8f6 | 641 | while ((port->state->xmit.head != temp_tail) && |
1da177e4 LT |
642 | (data_count <= XMIT_BUFF_SZ)) { |
643 | ||
644 | ICOM_PORT->xmit_buf[data_count++] = | |
ebd2c8f6 | 645 | port->state->xmit.buf[temp_tail]; |
1da177e4 LT |
646 | |
647 | temp_tail++; | |
648 | temp_tail &= (UART_XMIT_SIZE - 1); | |
649 | } | |
650 | ||
651 | if (data_count) { | |
652 | ICOM_PORT->statStg->xmit[0].flags = | |
653 | cpu_to_le16(SA_FLAGS_READY_TO_XMIT); | |
654 | ICOM_PORT->statStg->xmit[0].leLength = | |
655 | cpu_to_le16(data_count); | |
656 | offset = | |
657 | (unsigned long) &ICOM_PORT->statStg->xmit[0] - | |
658 | (unsigned long) ICOM_PORT->statStg; | |
659 | *ICOM_PORT->xmitRestart = | |
660 | cpu_to_le32(ICOM_PORT->statStg_pci + offset); | |
661 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
662 | writeb(cmdReg | CMD_XMIT_RCV_ENABLE, | |
663 | &ICOM_PORT->dram->CmdReg); | |
664 | writeb(START_XMIT, &ICOM_PORT->dram->StartXmitCmd); | |
665 | trace(ICOM_PORT, "WRITE_START", data_count); | |
666 | /* write flush */ | |
667 | readb(&ICOM_PORT->dram->StartXmitCmd); | |
668 | } | |
669 | ||
670 | return data_count; | |
671 | } | |
672 | ||
673 | static inline void check_modem_status(struct icom_port *icom_port) | |
674 | { | |
675 | static char old_status = 0; | |
676 | char delta_status; | |
677 | unsigned char status; | |
678 | ||
679 | spin_lock(&icom_port->uart_port.lock); | |
680 | ||
681 | /*modem input register */ | |
682 | status = readb(&icom_port->dram->isr); | |
683 | trace(icom_port, "CHECK_MODEM", status); | |
684 | delta_status = status ^ old_status; | |
685 | if (delta_status) { | |
686 | if (delta_status & ICOM_RI) | |
687 | icom_port->uart_port.icount.rng++; | |
688 | if (delta_status & ICOM_DSR) | |
689 | icom_port->uart_port.icount.dsr++; | |
690 | if (delta_status & ICOM_DCD) | |
691 | uart_handle_dcd_change(&icom_port->uart_port, | |
692 | delta_status & ICOM_DCD); | |
693 | if (delta_status & ICOM_CTS) | |
694 | uart_handle_cts_change(&icom_port->uart_port, | |
695 | delta_status & ICOM_CTS); | |
696 | ||
ebd2c8f6 | 697 | wake_up_interruptible(&icom_port->uart_port.state-> |
bdc04e31 | 698 | port.delta_msr_wait); |
1da177e4 LT |
699 | old_status = status; |
700 | } | |
701 | spin_unlock(&icom_port->uart_port.lock); | |
702 | } | |
703 | ||
704 | static void xmit_interrupt(u16 port_int_reg, struct icom_port *icom_port) | |
705 | { | |
706 | unsigned short int count; | |
707 | int i; | |
708 | ||
709 | if (port_int_reg & (INT_XMIT_COMPLETED)) { | |
710 | trace(icom_port, "XMIT_COMPLETE", 0); | |
711 | ||
712 | /* clear buffer in use bit */ | |
713 | icom_port->statStg->xmit[0].flags &= | |
714 | cpu_to_le16(~SA_FLAGS_READY_TO_XMIT); | |
715 | ||
716 | count = (unsigned short int) | |
717 | cpu_to_le16(icom_port->statStg->xmit[0].leLength); | |
718 | icom_port->uart_port.icount.tx += count; | |
719 | ||
720 | for (i=0; i<count && | |
ebd2c8f6 | 721 | !uart_circ_empty(&icom_port->uart_port.state->xmit); i++) { |
1da177e4 | 722 | |
ebd2c8f6 AC |
723 | icom_port->uart_port.state->xmit.tail++; |
724 | icom_port->uart_port.state->xmit.tail &= | |
1da177e4 LT |
725 | (UART_XMIT_SIZE - 1); |
726 | } | |
727 | ||
728 | if (!icom_write(&icom_port->uart_port)) | |
729 | /* activate write queue */ | |
730 | uart_write_wakeup(&icom_port->uart_port); | |
731 | } else | |
732 | trace(icom_port, "XMIT_DISABLED", 0); | |
733 | } | |
734 | ||
735 | static void recv_interrupt(u16 port_int_reg, struct icom_port *icom_port) | |
736 | { | |
737 | short int count, rcv_buff; | |
ebd2c8f6 | 738 | struct tty_struct *tty = icom_port->uart_port.state->port.tty; |
1da177e4 LT |
739 | unsigned short int status; |
740 | struct uart_icount *icount; | |
741 | unsigned long offset; | |
33f0f88f | 742 | unsigned char flag; |
1da177e4 LT |
743 | |
744 | trace(icom_port, "RCV_COMPLETE", 0); | |
745 | rcv_buff = icom_port->next_rcv; | |
746 | ||
747 | status = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].flags); | |
748 | while (status & SA_FL_RCV_DONE) { | |
33f0f88f | 749 | int first = -1; |
1da177e4 LT |
750 | |
751 | trace(icom_port, "FID_STATUS", status); | |
752 | count = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].leLength); | |
753 | ||
33f0f88f | 754 | count = tty_buffer_request_room(tty, count); |
1da177e4 | 755 | trace(icom_port, "RCV_COUNT", count); |
1da177e4 LT |
756 | |
757 | trace(icom_port, "REAL_COUNT", count); | |
758 | ||
759 | offset = | |
760 | cpu_to_le32(icom_port->statStg->rcv[rcv_buff].leBuffer) - | |
761 | icom_port->recv_buf_pci; | |
762 | ||
33f0f88f | 763 | /* Block copy all but the last byte as this may have status */ |
1da177e4 | 764 | if (count > 0) { |
33f0f88f AC |
765 | first = icom_port->recv_buf[offset]; |
766 | tty_insert_flip_string(tty, icom_port->recv_buf + offset, count - 1); | |
1da177e4 LT |
767 | } |
768 | ||
769 | icount = &icom_port->uart_port.icount; | |
770 | icount->rx += count; | |
771 | ||
772 | /* Break detect logic */ | |
773 | if ((status & SA_FLAGS_FRAME_ERROR) | |
33f0f88f | 774 | && first == 0) { |
1da177e4 LT |
775 | status &= ~SA_FLAGS_FRAME_ERROR; |
776 | status |= SA_FLAGS_BREAK_DET; | |
777 | trace(icom_port, "BREAK_DET", 0); | |
778 | } | |
779 | ||
33f0f88f AC |
780 | flag = TTY_NORMAL; |
781 | ||
1da177e4 LT |
782 | if (status & |
783 | (SA_FLAGS_BREAK_DET | SA_FLAGS_PARITY_ERROR | | |
784 | SA_FLAGS_FRAME_ERROR | SA_FLAGS_OVERRUN)) { | |
785 | ||
786 | if (status & SA_FLAGS_BREAK_DET) | |
787 | icount->brk++; | |
788 | if (status & SA_FLAGS_PARITY_ERROR) | |
789 | icount->parity++; | |
790 | if (status & SA_FLAGS_FRAME_ERROR) | |
791 | icount->frame++; | |
792 | if (status & SA_FLAGS_OVERRUN) | |
793 | icount->overrun++; | |
794 | ||
795 | /* | |
796 | * Now check to see if character should be | |
797 | * ignored, and mask off conditions which | |
798 | * should be ignored. | |
799 | */ | |
800 | if (status & icom_port->ignore_status_mask) { | |
801 | trace(icom_port, "IGNORE_CHAR", 0); | |
802 | goto ignore_char; | |
803 | } | |
804 | ||
805 | status &= icom_port->read_status_mask; | |
806 | ||
807 | if (status & SA_FLAGS_BREAK_DET) { | |
33f0f88f | 808 | flag = TTY_BREAK; |
1da177e4 LT |
809 | } else if (status & SA_FLAGS_PARITY_ERROR) { |
810 | trace(icom_port, "PARITY_ERROR", 0); | |
33f0f88f | 811 | flag = TTY_PARITY; |
1da177e4 | 812 | } else if (status & SA_FLAGS_FRAME_ERROR) |
33f0f88f AC |
813 | flag = TTY_FRAME; |
814 | ||
1da177e4 LT |
815 | } |
816 | ||
33f0f88f AC |
817 | tty_insert_flip_char(tty, *(icom_port->recv_buf + offset + count - 1), flag); |
818 | ||
819 | if (status & SA_FLAGS_OVERRUN) | |
820 | /* | |
821 | * Overrun is special, since it's | |
822 | * reported immediately, and doesn't | |
823 | * affect the current character | |
824 | */ | |
825 | tty_insert_flip_char(tty, 0, TTY_OVERRUN); | |
826 | ignore_char: | |
827 | icom_port->statStg->rcv[rcv_buff].flags = 0; | |
1da177e4 LT |
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 | ||
7d12e780 | 858 | static irqreturn_t icom_interrupt(int irq, void *dev_id) |
1da177e4 LT |
859 | { |
860 | void __iomem * int_reg; | |
861 | u32 adapter_interrupts; | |
862 | u16 port_int_reg; | |
863 | struct icom_adapter *icom_adapter; | |
864 | struct icom_port *icom_port; | |
865 | ||
866 | /* find icom_port for this interrupt */ | |
867 | icom_adapter = (struct icom_adapter *) dev_id; | |
868 | ||
aba6593b | 869 | if (icom_adapter->version == ADAPTER_V2) { |
1da177e4 LT |
870 | int_reg = icom_adapter->base_addr + 0x8024; |
871 | ||
872 | adapter_interrupts = readl(int_reg); | |
873 | ||
874 | if (adapter_interrupts & 0x00003FFF) { | |
875 | /* port 2 interrupt, NOTE: for all ADAPTER_V2, port 2 will be active */ | |
876 | icom_port = &icom_adapter->port_info[2]; | |
877 | port_int_reg = (u16) adapter_interrupts; | |
878 | process_interrupt(port_int_reg, icom_port); | |
879 | check_modem_status(icom_port); | |
880 | } | |
881 | if (adapter_interrupts & 0x3FFF0000) { | |
882 | /* port 3 interrupt */ | |
883 | icom_port = &icom_adapter->port_info[3]; | |
884 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
885 | port_int_reg = | |
886 | (u16) (adapter_interrupts >> 16); | |
887 | process_interrupt(port_int_reg, icom_port); | |
888 | check_modem_status(icom_port); | |
889 | } | |
890 | } | |
891 | ||
892 | /* Clear out any pending interrupts */ | |
893 | writel(adapter_interrupts, int_reg); | |
894 | ||
895 | int_reg = icom_adapter->base_addr + 0x8004; | |
896 | } else { | |
897 | int_reg = icom_adapter->base_addr + 0x4004; | |
898 | } | |
899 | ||
900 | adapter_interrupts = readl(int_reg); | |
901 | ||
902 | if (adapter_interrupts & 0x00003FFF) { | |
903 | /* port 0 interrupt, NOTE: for all adapters, port 0 will be active */ | |
904 | icom_port = &icom_adapter->port_info[0]; | |
905 | port_int_reg = (u16) adapter_interrupts; | |
906 | process_interrupt(port_int_reg, icom_port); | |
907 | check_modem_status(icom_port); | |
908 | } | |
909 | if (adapter_interrupts & 0x3FFF0000) { | |
910 | /* port 1 interrupt */ | |
911 | icom_port = &icom_adapter->port_info[1]; | |
912 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
913 | port_int_reg = (u16) (adapter_interrupts >> 16); | |
914 | process_interrupt(port_int_reg, icom_port); | |
915 | check_modem_status(icom_port); | |
916 | } | |
917 | } | |
918 | ||
919 | /* Clear out any pending interrupts */ | |
920 | writel(adapter_interrupts, int_reg); | |
921 | ||
922 | /* flush the write */ | |
923 | adapter_interrupts = readl(int_reg); | |
924 | ||
925 | return IRQ_HANDLED; | |
926 | } | |
927 | ||
928 | /* | |
929 | * ------------------------------------------------------------------ | |
930 | * Begin serial-core API | |
931 | * ------------------------------------------------------------------ | |
932 | */ | |
933 | static unsigned int icom_tx_empty(struct uart_port *port) | |
934 | { | |
935 | int ret; | |
936 | unsigned long flags; | |
937 | ||
938 | spin_lock_irqsave(&port->lock, flags); | |
939 | if (cpu_to_le16(ICOM_PORT->statStg->xmit[0].flags) & | |
940 | SA_FLAGS_READY_TO_XMIT) | |
941 | ret = TIOCSER_TEMT; | |
942 | else | |
943 | ret = 0; | |
944 | ||
945 | spin_unlock_irqrestore(&port->lock, flags); | |
946 | return ret; | |
947 | } | |
948 | ||
949 | static void icom_set_mctrl(struct uart_port *port, unsigned int mctrl) | |
950 | { | |
951 | unsigned char local_osr; | |
952 | ||
953 | trace(ICOM_PORT, "SET_MODEM", 0); | |
954 | local_osr = readb(&ICOM_PORT->dram->osr); | |
955 | ||
956 | if (mctrl & TIOCM_RTS) { | |
957 | trace(ICOM_PORT, "RAISE_RTS", 0); | |
958 | local_osr |= ICOM_RTS; | |
959 | } else { | |
960 | trace(ICOM_PORT, "LOWER_RTS", 0); | |
961 | local_osr &= ~ICOM_RTS; | |
962 | } | |
963 | ||
964 | if (mctrl & TIOCM_DTR) { | |
965 | trace(ICOM_PORT, "RAISE_DTR", 0); | |
966 | local_osr |= ICOM_DTR; | |
967 | } else { | |
968 | trace(ICOM_PORT, "LOWER_DTR", 0); | |
969 | local_osr &= ~ICOM_DTR; | |
970 | } | |
971 | ||
972 | writeb(local_osr, &ICOM_PORT->dram->osr); | |
973 | } | |
974 | ||
975 | static unsigned int icom_get_mctrl(struct uart_port *port) | |
976 | { | |
977 | unsigned char status; | |
978 | unsigned int result; | |
979 | ||
980 | trace(ICOM_PORT, "GET_MODEM", 0); | |
981 | ||
982 | status = readb(&ICOM_PORT->dram->isr); | |
983 | ||
984 | result = ((status & ICOM_DCD) ? TIOCM_CAR : 0) | |
985 | | ((status & ICOM_RI) ? TIOCM_RNG : 0) | |
986 | | ((status & ICOM_DSR) ? TIOCM_DSR : 0) | |
987 | | ((status & ICOM_CTS) ? TIOCM_CTS : 0); | |
988 | return result; | |
989 | } | |
990 | ||
b129a8cc | 991 | static void icom_stop_tx(struct uart_port *port) |
1da177e4 LT |
992 | { |
993 | unsigned char cmdReg; | |
994 | ||
b129a8cc RK |
995 | trace(ICOM_PORT, "STOP", 0); |
996 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
997 | writeb(cmdReg | CMD_HOLD_XMIT, &ICOM_PORT->dram->CmdReg); | |
1da177e4 LT |
998 | } |
999 | ||
b129a8cc | 1000 | static void icom_start_tx(struct uart_port *port) |
1da177e4 LT |
1001 | { |
1002 | unsigned char cmdReg; | |
1003 | ||
1004 | trace(ICOM_PORT, "START", 0); | |
1005 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1006 | if ((cmdReg & CMD_HOLD_XMIT) == CMD_HOLD_XMIT) | |
1007 | writeb(cmdReg & ~CMD_HOLD_XMIT, | |
1008 | &ICOM_PORT->dram->CmdReg); | |
1009 | ||
1010 | icom_write(port); | |
1011 | } | |
1012 | ||
1013 | static void icom_send_xchar(struct uart_port *port, char ch) | |
1014 | { | |
1015 | unsigned char xdata; | |
1016 | int index; | |
1017 | unsigned long flags; | |
1018 | ||
1019 | trace(ICOM_PORT, "SEND_XCHAR", ch); | |
1020 | ||
1021 | /* wait .1 sec to send char */ | |
1022 | for (index = 0; index < 10; index++) { | |
1023 | spin_lock_irqsave(&port->lock, flags); | |
1024 | xdata = readb(&ICOM_PORT->dram->xchar); | |
1025 | if (xdata == 0x00) { | |
1026 | trace(ICOM_PORT, "QUICK_WRITE", 0); | |
1027 | writeb(ch, &ICOM_PORT->dram->xchar); | |
1028 | ||
1029 | /* flush write operation */ | |
1030 | xdata = readb(&ICOM_PORT->dram->xchar); | |
1031 | spin_unlock_irqrestore(&port->lock, flags); | |
1032 | break; | |
1033 | } | |
1034 | spin_unlock_irqrestore(&port->lock, flags); | |
1035 | msleep(10); | |
1036 | } | |
1037 | } | |
1038 | ||
1039 | static void icom_stop_rx(struct uart_port *port) | |
1040 | { | |
1041 | unsigned char cmdReg; | |
1042 | ||
1043 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1044 | writeb(cmdReg & ~CMD_RCV_ENABLE, &ICOM_PORT->dram->CmdReg); | |
1045 | } | |
1046 | ||
1047 | static void icom_enable_ms(struct uart_port *port) | |
1048 | { | |
1049 | /* no-op */ | |
1050 | } | |
1051 | ||
1052 | static void icom_break(struct uart_port *port, int break_state) | |
1053 | { | |
1054 | unsigned char cmdReg; | |
1055 | unsigned long flags; | |
1056 | ||
1057 | spin_lock_irqsave(&port->lock, flags); | |
1058 | trace(ICOM_PORT, "BREAK", 0); | |
1059 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1060 | if (break_state == -1) { | |
1061 | writeb(cmdReg | CMD_SND_BREAK, &ICOM_PORT->dram->CmdReg); | |
1062 | } else { | |
1063 | writeb(cmdReg & ~CMD_SND_BREAK, &ICOM_PORT->dram->CmdReg); | |
1064 | } | |
1065 | spin_unlock_irqrestore(&port->lock, flags); | |
1066 | } | |
1067 | ||
1068 | static int icom_open(struct uart_port *port) | |
1069 | { | |
1070 | int retval; | |
1071 | ||
15f2bbb2 | 1072 | kref_get(&ICOM_PORT->adapter->kref); |
1da177e4 LT |
1073 | retval = startup(ICOM_PORT); |
1074 | ||
1075 | if (retval) { | |
15f2bbb2 | 1076 | kref_put(&ICOM_PORT->adapter->kref, icom_kref_release); |
1da177e4 LT |
1077 | trace(ICOM_PORT, "STARTUP_ERROR", 0); |
1078 | return retval; | |
1079 | } | |
1080 | ||
1081 | return 0; | |
1082 | } | |
1083 | ||
1084 | static void icom_close(struct uart_port *port) | |
1085 | { | |
1086 | unsigned char cmdReg; | |
1087 | ||
1088 | trace(ICOM_PORT, "CLOSE", 0); | |
1089 | ||
1090 | /* stop receiver */ | |
1091 | cmdReg = readb(&ICOM_PORT->dram->CmdReg); | |
1092 | writeb(cmdReg & (unsigned char) ~CMD_RCV_ENABLE, | |
1093 | &ICOM_PORT->dram->CmdReg); | |
1094 | ||
1095 | shutdown(ICOM_PORT); | |
1096 | ||
15f2bbb2 | 1097 | kref_put(&ICOM_PORT->adapter->kref, icom_kref_release); |
1da177e4 LT |
1098 | } |
1099 | ||
1100 | static void icom_set_termios(struct uart_port *port, | |
606d099c AC |
1101 | struct ktermios *termios, |
1102 | struct ktermios *old_termios) | |
1da177e4 LT |
1103 | { |
1104 | int baud; | |
1105 | unsigned cflag, iflag; | |
1da177e4 LT |
1106 | char new_config2; |
1107 | char new_config3 = 0; | |
1108 | char tmp_byte; | |
1109 | int index; | |
1110 | int rcv_buff, xmit_buff; | |
1111 | unsigned long offset; | |
1112 | unsigned long flags; | |
1113 | ||
1114 | spin_lock_irqsave(&port->lock, flags); | |
1115 | trace(ICOM_PORT, "CHANGE_SPEED", 0); | |
1116 | ||
1117 | cflag = termios->c_cflag; | |
1118 | iflag = termios->c_iflag; | |
1119 | ||
1120 | new_config2 = ICOM_ACFG_DRIVE1; | |
1121 | ||
1122 | /* byte size and parity */ | |
1123 | switch (cflag & CSIZE) { | |
1124 | case CS5: /* 5 bits/char */ | |
1125 | new_config2 |= ICOM_ACFG_5BPC; | |
1da177e4 LT |
1126 | break; |
1127 | case CS6: /* 6 bits/char */ | |
1128 | new_config2 |= ICOM_ACFG_6BPC; | |
1da177e4 LT |
1129 | break; |
1130 | case CS7: /* 7 bits/char */ | |
1131 | new_config2 |= ICOM_ACFG_7BPC; | |
1da177e4 LT |
1132 | break; |
1133 | case CS8: /* 8 bits/char */ | |
1134 | new_config2 |= ICOM_ACFG_8BPC; | |
1da177e4 LT |
1135 | break; |
1136 | default: | |
1da177e4 LT |
1137 | break; |
1138 | } | |
1139 | if (cflag & CSTOPB) { | |
1140 | /* 2 stop bits */ | |
1141 | new_config2 |= ICOM_ACFG_2STOP_BIT; | |
1da177e4 LT |
1142 | } |
1143 | if (cflag & PARENB) { | |
1144 | /* parity bit enabled */ | |
1145 | new_config2 |= ICOM_ACFG_PARITY_ENAB; | |
1146 | trace(ICOM_PORT, "PARENB", 0); | |
1da177e4 LT |
1147 | } |
1148 | if (cflag & PARODD) { | |
1149 | /* odd parity */ | |
1150 | new_config2 |= ICOM_ACFG_PARITY_ODD; | |
1151 | trace(ICOM_PORT, "PARODD", 0); | |
1152 | } | |
1153 | ||
1154 | /* Determine divisor based on baud rate */ | |
1155 | baud = uart_get_baud_rate(port, termios, old_termios, | |
1156 | icom_acfg_baud[0], | |
1157 | icom_acfg_baud[BAUD_TABLE_LIMIT]); | |
1158 | if (!baud) | |
1159 | baud = 9600; /* B0 transition handled in rs_set_termios */ | |
1160 | ||
1161 | for (index = 0; index < BAUD_TABLE_LIMIT; index++) { | |
1162 | if (icom_acfg_baud[index] == baud) { | |
1163 | new_config3 = index; | |
1164 | break; | |
1165 | } | |
1166 | } | |
1167 | ||
1168 | uart_update_timeout(port, cflag, baud); | |
1169 | ||
1170 | /* CTS flow control flag and modem status interrupts */ | |
1171 | tmp_byte = readb(&(ICOM_PORT->dram->HDLCConfigReg)); | |
1172 | if (cflag & CRTSCTS) | |
1173 | tmp_byte |= HDLC_HDW_FLOW; | |
1174 | else | |
1175 | tmp_byte &= ~HDLC_HDW_FLOW; | |
1176 | writeb(tmp_byte, &(ICOM_PORT->dram->HDLCConfigReg)); | |
1177 | ||
1178 | /* | |
1179 | * Set up parity check flag | |
1180 | */ | |
1181 | ICOM_PORT->read_status_mask = SA_FLAGS_OVERRUN | SA_FL_RCV_DONE; | |
1182 | if (iflag & INPCK) | |
1183 | ICOM_PORT->read_status_mask |= | |
1184 | SA_FLAGS_FRAME_ERROR | SA_FLAGS_PARITY_ERROR; | |
1185 | ||
1186 | if ((iflag & BRKINT) || (iflag & PARMRK)) | |
1187 | ICOM_PORT->read_status_mask |= SA_FLAGS_BREAK_DET; | |
1188 | ||
1189 | /* | |
1190 | * Characters to ignore | |
1191 | */ | |
1192 | ICOM_PORT->ignore_status_mask = 0; | |
1193 | if (iflag & IGNPAR) | |
1194 | ICOM_PORT->ignore_status_mask |= | |
1195 | SA_FLAGS_PARITY_ERROR | SA_FLAGS_FRAME_ERROR; | |
1196 | if (iflag & IGNBRK) { | |
1197 | ICOM_PORT->ignore_status_mask |= SA_FLAGS_BREAK_DET; | |
1198 | /* | |
1199 | * If we're ignore parity and break indicators, ignore | |
1200 | * overruns too. (For real raw support). | |
1201 | */ | |
1202 | if (iflag & IGNPAR) | |
1203 | ICOM_PORT->ignore_status_mask |= SA_FLAGS_OVERRUN; | |
1204 | } | |
1205 | ||
1206 | /* | |
1207 | * !!! ignore all characters if CREAD is not set | |
1208 | */ | |
1209 | if ((cflag & CREAD) == 0) | |
1210 | ICOM_PORT->ignore_status_mask |= SA_FL_RCV_DONE; | |
1211 | ||
1212 | /* Turn off Receiver to prepare for reset */ | |
1213 | writeb(CMD_RCV_DISABLE, &ICOM_PORT->dram->CmdReg); | |
1214 | ||
1215 | for (index = 0; index < 10; index++) { | |
1216 | if (readb(&ICOM_PORT->dram->PrevCmdReg) == 0x00) { | |
1217 | break; | |
1218 | } | |
1219 | } | |
1220 | ||
1221 | /* clear all current buffers of data */ | |
1222 | for (rcv_buff = 0; rcv_buff < NUM_RBUFFS; rcv_buff++) { | |
1223 | ICOM_PORT->statStg->rcv[rcv_buff].flags = 0; | |
1224 | ICOM_PORT->statStg->rcv[rcv_buff].leLength = 0; | |
1225 | ICOM_PORT->statStg->rcv[rcv_buff].WorkingLength = | |
1226 | (unsigned short int) cpu_to_le16(RCV_BUFF_SZ); | |
1227 | } | |
1228 | ||
1229 | for (xmit_buff = 0; xmit_buff < NUM_XBUFFS; xmit_buff++) { | |
1230 | ICOM_PORT->statStg->xmit[xmit_buff].flags = 0; | |
1231 | } | |
1232 | ||
1233 | /* activate changes and start xmit and receiver here */ | |
1234 | /* Enable the receiver */ | |
1235 | writeb(new_config3, &(ICOM_PORT->dram->async_config3)); | |
1236 | writeb(new_config2, &(ICOM_PORT->dram->async_config2)); | |
1237 | tmp_byte = readb(&(ICOM_PORT->dram->HDLCConfigReg)); | |
1238 | tmp_byte |= HDLC_PPP_PURE_ASYNC | HDLC_FF_FILL; | |
1239 | writeb(tmp_byte, &(ICOM_PORT->dram->HDLCConfigReg)); | |
1240 | writeb(0x04, &(ICOM_PORT->dram->FlagFillIdleTimer)); /* 0.5 seconds */ | |
1241 | writeb(0xFF, &(ICOM_PORT->dram->ier)); /* enable modem signal interrupts */ | |
1242 | ||
1243 | /* reset processor */ | |
1244 | writeb(CMD_RESTART, &ICOM_PORT->dram->CmdReg); | |
1245 | ||
1246 | for (index = 0; index < 10; index++) { | |
1247 | if (readb(&ICOM_PORT->dram->CmdReg) == 0x00) { | |
1248 | break; | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | /* Enable Transmitter and Reciever */ | |
1253 | offset = | |
1254 | (unsigned long) &ICOM_PORT->statStg->rcv[0] - | |
1255 | (unsigned long) ICOM_PORT->statStg; | |
1256 | writel(ICOM_PORT->statStg_pci + offset, | |
1257 | &ICOM_PORT->dram->RcvStatusAddr); | |
1258 | ICOM_PORT->next_rcv = 0; | |
1259 | ICOM_PORT->put_length = 0; | |
1260 | *ICOM_PORT->xmitRestart = 0; | |
1261 | writel(ICOM_PORT->xmitRestart_pci, | |
1262 | &ICOM_PORT->dram->XmitStatusAddr); | |
1263 | trace(ICOM_PORT, "XR_ENAB", 0); | |
1264 | writeb(CMD_XMIT_RCV_ENABLE, &ICOM_PORT->dram->CmdReg); | |
1265 | ||
1266 | spin_unlock_irqrestore(&port->lock, flags); | |
1267 | } | |
1268 | ||
1269 | static const char *icom_type(struct uart_port *port) | |
1270 | { | |
1271 | return "icom"; | |
1272 | } | |
1273 | ||
1274 | static void icom_release_port(struct uart_port *port) | |
1275 | { | |
1276 | } | |
1277 | ||
1278 | static int icom_request_port(struct uart_port *port) | |
1279 | { | |
1280 | return 0; | |
1281 | } | |
1282 | ||
1283 | static void icom_config_port(struct uart_port *port, int flags) | |
1284 | { | |
1285 | port->type = PORT_ICOM; | |
1286 | } | |
1287 | ||
1288 | static struct uart_ops icom_ops = { | |
1289 | .tx_empty = icom_tx_empty, | |
1290 | .set_mctrl = icom_set_mctrl, | |
1291 | .get_mctrl = icom_get_mctrl, | |
1292 | .stop_tx = icom_stop_tx, | |
1293 | .start_tx = icom_start_tx, | |
1294 | .send_xchar = icom_send_xchar, | |
1295 | .stop_rx = icom_stop_rx, | |
1296 | .enable_ms = icom_enable_ms, | |
1297 | .break_ctl = icom_break, | |
1298 | .startup = icom_open, | |
1299 | .shutdown = icom_close, | |
1300 | .set_termios = icom_set_termios, | |
1301 | .type = icom_type, | |
1302 | .release_port = icom_release_port, | |
1303 | .request_port = icom_request_port, | |
1304 | .config_port = icom_config_port, | |
1305 | }; | |
1306 | ||
1307 | #define ICOM_CONSOLE NULL | |
1308 | ||
1309 | static struct uart_driver icom_uart_driver = { | |
1310 | .owner = THIS_MODULE, | |
1311 | .driver_name = ICOM_DRIVER_NAME, | |
1312 | .dev_name = "ttyA", | |
1313 | .major = ICOM_MAJOR, | |
1314 | .minor = ICOM_MINOR_START, | |
1315 | .nr = NR_PORTS, | |
1316 | .cons = ICOM_CONSOLE, | |
1317 | }; | |
1318 | ||
1319 | static int __devinit icom_init_ports(struct icom_adapter *icom_adapter) | |
1320 | { | |
1321 | u32 subsystem_id = icom_adapter->subsystem_id; | |
1da177e4 LT |
1322 | int i; |
1323 | struct icom_port *icom_port; | |
1324 | ||
1325 | if (icom_adapter->version == ADAPTER_V1) { | |
1326 | icom_adapter->numb_ports = 2; | |
1327 | ||
1328 | for (i = 0; i < 2; i++) { | |
1329 | icom_port = &icom_adapter->port_info[i]; | |
1330 | icom_port->port = i; | |
1331 | icom_port->status = ICOM_PORT_ACTIVE; | |
1332 | icom_port->imbed_modem = ICOM_UNKNOWN; | |
1333 | } | |
1334 | } else { | |
1335 | if (subsystem_id == PCI_DEVICE_ID_IBM_ICOM_FOUR_PORT_MODEL) { | |
1336 | icom_adapter->numb_ports = 4; | |
1337 | ||
1338 | for (i = 0; i < 4; i++) { | |
1339 | icom_port = &icom_adapter->port_info[i]; | |
1340 | ||
1341 | icom_port->port = i; | |
1342 | icom_port->status = ICOM_PORT_ACTIVE; | |
1343 | icom_port->imbed_modem = ICOM_IMBED_MODEM; | |
1344 | } | |
1345 | } else { | |
1346 | icom_adapter->numb_ports = 4; | |
1347 | ||
1348 | icom_adapter->port_info[0].port = 0; | |
1349 | icom_adapter->port_info[0].status = ICOM_PORT_ACTIVE; | |
1350 | ||
1351 | if (subsystem_id == | |
1352 | PCI_DEVICE_ID_IBM_ICOM_V2_ONE_PORT_RVX_ONE_PORT_MDM) { | |
1353 | icom_adapter->port_info[0].imbed_modem = ICOM_IMBED_MODEM; | |
1354 | } else { | |
1355 | icom_adapter->port_info[0].imbed_modem = ICOM_RVX; | |
1356 | } | |
1357 | ||
1358 | icom_adapter->port_info[1].status = ICOM_PORT_OFF; | |
1359 | ||
1360 | icom_adapter->port_info[2].port = 2; | |
1361 | icom_adapter->port_info[2].status = ICOM_PORT_ACTIVE; | |
1362 | icom_adapter->port_info[2].imbed_modem = ICOM_RVX; | |
1363 | icom_adapter->port_info[3].status = ICOM_PORT_OFF; | |
1364 | } | |
1365 | } | |
1366 | ||
60de8ad3 | 1367 | return 0; |
1da177e4 LT |
1368 | } |
1369 | ||
1370 | static void icom_port_active(struct icom_port *icom_port, struct icom_adapter *icom_adapter, int port_num) | |
1371 | { | |
1372 | if (icom_adapter->version == ADAPTER_V1) { | |
1373 | icom_port->global_reg = icom_adapter->base_addr + 0x4000; | |
1374 | icom_port->int_reg = icom_adapter->base_addr + | |
1375 | 0x4004 + 2 - 2 * port_num; | |
1376 | } else { | |
1377 | icom_port->global_reg = icom_adapter->base_addr + 0x8000; | |
1378 | if (icom_port->port < 2) | |
1379 | icom_port->int_reg = icom_adapter->base_addr + | |
1380 | 0x8004 + 2 - 2 * icom_port->port; | |
1381 | else | |
1382 | icom_port->int_reg = icom_adapter->base_addr + | |
1383 | 0x8024 + 2 - 2 * (icom_port->port - 2); | |
1384 | } | |
1385 | } | |
98f85d30 | 1386 | static int __devinit icom_load_ports(struct icom_adapter *icom_adapter) |
1da177e4 LT |
1387 | { |
1388 | struct icom_port *icom_port; | |
1389 | int port_num; | |
1da177e4 LT |
1390 | |
1391 | for (port_num = 0; port_num < icom_adapter->numb_ports; port_num++) { | |
1392 | ||
1393 | icom_port = &icom_adapter->port_info[port_num]; | |
1394 | ||
1395 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
1396 | icom_port_active(icom_port, icom_adapter, port_num); | |
1397 | icom_port->dram = icom_adapter->base_addr + | |
1398 | 0x2000 * icom_port->port; | |
1399 | ||
1400 | icom_port->adapter = icom_adapter; | |
1401 | ||
1402 | /* get port memory */ | |
60de8ad3 | 1403 | if (get_port_memory(icom_port) != 0) { |
1da177e4 LT |
1404 | dev_err(&icom_port->adapter->pci_dev->dev, |
1405 | "Memory allocation for port FAILED\n"); | |
1406 | } | |
1407 | } | |
1408 | } | |
1409 | return 0; | |
1410 | } | |
1411 | ||
1412 | static int __devinit icom_alloc_adapter(struct icom_adapter | |
1413 | **icom_adapter_ref) | |
1414 | { | |
1415 | int adapter_count = 0; | |
1416 | struct icom_adapter *icom_adapter; | |
1417 | struct icom_adapter *cur_adapter_entry; | |
1418 | struct list_head *tmp; | |
1419 | ||
1420 | icom_adapter = (struct icom_adapter *) | |
8f31bb39 | 1421 | kzalloc(sizeof(struct icom_adapter), GFP_KERNEL); |
1da177e4 LT |
1422 | |
1423 | if (!icom_adapter) { | |
1424 | return -ENOMEM; | |
1425 | } | |
1426 | ||
1da177e4 LT |
1427 | list_for_each(tmp, &icom_adapter_head) { |
1428 | cur_adapter_entry = | |
1429 | list_entry(tmp, struct icom_adapter, | |
1430 | icom_adapter_entry); | |
1431 | if (cur_adapter_entry->index != adapter_count) { | |
1432 | break; | |
1433 | } | |
1434 | adapter_count++; | |
1435 | } | |
1436 | ||
1437 | icom_adapter->index = adapter_count; | |
1438 | list_add_tail(&icom_adapter->icom_adapter_entry, tmp); | |
1439 | ||
1440 | *icom_adapter_ref = icom_adapter; | |
1441 | return 0; | |
1442 | } | |
1443 | ||
1444 | static void icom_free_adapter(struct icom_adapter *icom_adapter) | |
1445 | { | |
1446 | list_del(&icom_adapter->icom_adapter_entry); | |
1447 | kfree(icom_adapter); | |
1448 | } | |
1449 | ||
1450 | static void icom_remove_adapter(struct icom_adapter *icom_adapter) | |
1451 | { | |
1452 | struct icom_port *icom_port; | |
1453 | int index; | |
1454 | ||
1455 | for (index = 0; index < icom_adapter->numb_ports; index++) { | |
1456 | icom_port = &icom_adapter->port_info[index]; | |
1457 | ||
1458 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
1459 | dev_info(&icom_adapter->pci_dev->dev, | |
1460 | "Device removed\n"); | |
1461 | ||
1462 | uart_remove_one_port(&icom_uart_driver, | |
1463 | &icom_port->uart_port); | |
1464 | ||
1465 | /* be sure that DTR and RTS are dropped */ | |
1466 | writeb(0x00, &icom_port->dram->osr); | |
1467 | ||
1468 | /* Wait 0.1 Sec for simple Init to complete */ | |
1469 | msleep(100); | |
1470 | ||
1471 | /* Stop proccessor */ | |
1472 | stop_processor(icom_port); | |
1473 | ||
1474 | free_port_memory(icom_port); | |
1475 | } | |
1476 | } | |
1477 | ||
179fb0c7 | 1478 | free_irq(icom_adapter->pci_dev->irq, (void *) icom_adapter); |
1da177e4 | 1479 | iounmap(icom_adapter->base_addr); |
1da177e4 | 1480 | pci_release_regions(icom_adapter->pci_dev); |
95caa0a9 | 1481 | icom_free_adapter(icom_adapter); |
1da177e4 LT |
1482 | } |
1483 | ||
15f2bbb2 | 1484 | static void icom_kref_release(struct kref *kref) |
1da177e4 LT |
1485 | { |
1486 | struct icom_adapter *icom_adapter; | |
1487 | ||
15f2bbb2 | 1488 | icom_adapter = to_icom_adapter(kref); |
1da177e4 LT |
1489 | icom_remove_adapter(icom_adapter); |
1490 | } | |
1491 | ||
1da177e4 LT |
1492 | static int __devinit icom_probe(struct pci_dev *dev, |
1493 | const struct pci_device_id *ent) | |
1494 | { | |
1495 | int index; | |
75e3a6ae BL |
1496 | unsigned int command_reg; |
1497 | int retval; | |
1498 | struct icom_adapter *icom_adapter; | |
1499 | struct icom_port *icom_port; | |
1da177e4 | 1500 | |
75e3a6ae BL |
1501 | retval = pci_enable_device(dev); |
1502 | if (retval) { | |
1da177e4 | 1503 | dev_err(&dev->dev, "Device enable FAILED\n"); |
75e3a6ae | 1504 | return retval; |
1da177e4 LT |
1505 | } |
1506 | ||
1507 | if ( (retval = pci_request_regions(dev, "icom"))) { | |
87c18aa9 | 1508 | dev_err(&dev->dev, "pci_request_regions FAILED\n"); |
1da177e4 LT |
1509 | pci_disable_device(dev); |
1510 | return retval; | |
1511 | } | |
1512 | ||
75e3a6ae | 1513 | pci_set_master(dev); |
1da177e4 | 1514 | |
75e3a6ae | 1515 | if ( (retval = pci_read_config_dword(dev, PCI_COMMAND, &command_reg))) { |
1da177e4 | 1516 | dev_err(&dev->dev, "PCI Config read FAILED\n"); |
75e3a6ae BL |
1517 | return retval; |
1518 | } | |
1da177e4 LT |
1519 | |
1520 | pci_write_config_dword(dev, PCI_COMMAND, | |
1521 | command_reg | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | |
1522 | | PCI_COMMAND_PARITY | PCI_COMMAND_SERR); | |
1523 | ||
75e3a6ae | 1524 | if (ent->driver_data == ADAPTER_V1) { |
1da177e4 | 1525 | pci_write_config_dword(dev, 0x44, 0x8300830A); |
75e3a6ae | 1526 | } else { |
1da177e4 LT |
1527 | pci_write_config_dword(dev, 0x44, 0x42004200); |
1528 | pci_write_config_dword(dev, 0x48, 0x42004200); | |
75e3a6ae | 1529 | } |
1da177e4 LT |
1530 | |
1531 | ||
1532 | retval = icom_alloc_adapter(&icom_adapter); | |
1533 | if (retval) { | |
1534 | dev_err(&dev->dev, "icom_alloc_adapter FAILED\n"); | |
1535 | retval = -EIO; | |
1536 | goto probe_exit0; | |
1537 | } | |
1538 | ||
75e3a6ae BL |
1539 | icom_adapter->base_addr_pci = pci_resource_start(dev, 0); |
1540 | icom_adapter->pci_dev = dev; | |
1541 | icom_adapter->version = ent->driver_data; | |
1542 | icom_adapter->subsystem_id = ent->subdevice; | |
1da177e4 LT |
1543 | |
1544 | ||
1545 | retval = icom_init_ports(icom_adapter); | |
1546 | if (retval) { | |
1547 | dev_err(&dev->dev, "Port configuration failed\n"); | |
1548 | goto probe_exit1; | |
1549 | } | |
1550 | ||
75e3a6ae | 1551 | icom_adapter->base_addr = pci_ioremap_bar(dev, 0); |
1da177e4 LT |
1552 | |
1553 | if (!icom_adapter->base_addr) | |
1554 | goto probe_exit1; | |
1555 | ||
1556 | /* save off irq and request irq line */ | |
1557 | if ( (retval = request_irq(dev->irq, icom_interrupt, | |
40663cc7 | 1558 | IRQF_DISABLED | IRQF_SHARED, ICOM_DRIVER_NAME, |
1da177e4 LT |
1559 | (void *) icom_adapter))) { |
1560 | goto probe_exit2; | |
1561 | } | |
1562 | ||
1563 | retval = icom_load_ports(icom_adapter); | |
1564 | ||
75e3a6ae | 1565 | for (index = 0; index < icom_adapter->numb_ports; index++) { |
1da177e4 LT |
1566 | icom_port = &icom_adapter->port_info[index]; |
1567 | ||
1568 | if (icom_port->status == ICOM_PORT_ACTIVE) { | |
179fb0c7 | 1569 | icom_port->uart_port.irq = icom_port->adapter->pci_dev->irq; |
1da177e4 LT |
1570 | icom_port->uart_port.type = PORT_ICOM; |
1571 | icom_port->uart_port.iotype = UPIO_MEM; | |
1572 | icom_port->uart_port.membase = | |
1573 | (char *) icom_adapter->base_addr_pci; | |
1574 | icom_port->uart_port.fifosize = 16; | |
1575 | icom_port->uart_port.ops = &icom_ops; | |
1576 | icom_port->uart_port.line = | |
1577 | icom_port->port + icom_adapter->index * 4; | |
1578 | if (uart_add_one_port (&icom_uart_driver, &icom_port->uart_port)) { | |
1579 | icom_port->status = ICOM_PORT_OFF; | |
1580 | dev_err(&dev->dev, "Device add failed\n"); | |
1581 | } else | |
75e3a6ae | 1582 | dev_info(&dev->dev, "Device added\n"); |
1da177e4 LT |
1583 | } |
1584 | } | |
1585 | ||
15f2bbb2 | 1586 | kref_init(&icom_adapter->kref); |
1da177e4 LT |
1587 | return 0; |
1588 | ||
1589 | probe_exit2: | |
1590 | iounmap(icom_adapter->base_addr); | |
1591 | probe_exit1: | |
1592 | icom_free_adapter(icom_adapter); | |
1593 | ||
1594 | probe_exit0: | |
1595 | pci_release_regions(dev); | |
1596 | pci_disable_device(dev); | |
1597 | ||
75e3a6ae | 1598 | return retval; |
1da177e4 LT |
1599 | } |
1600 | ||
1601 | static void __devexit icom_remove(struct pci_dev *dev) | |
1602 | { | |
1603 | struct icom_adapter *icom_adapter; | |
1604 | struct list_head *tmp; | |
1605 | ||
1606 | list_for_each(tmp, &icom_adapter_head) { | |
1607 | icom_adapter = list_entry(tmp, struct icom_adapter, | |
1608 | icom_adapter_entry); | |
1609 | if (icom_adapter->pci_dev == dev) { | |
15f2bbb2 | 1610 | kref_put(&icom_adapter->kref, icom_kref_release); |
1da177e4 LT |
1611 | return; |
1612 | } | |
1613 | } | |
1614 | ||
1615 | dev_err(&dev->dev, "Unable to find device to remove\n"); | |
1616 | } | |
1617 | ||
1618 | static struct pci_driver icom_pci_driver = { | |
1619 | .name = ICOM_DRIVER_NAME, | |
1620 | .id_table = icom_pci_table, | |
1621 | .probe = icom_probe, | |
1622 | .remove = __devexit_p(icom_remove), | |
1623 | }; | |
1624 | ||
1625 | static int __init icom_init(void) | |
1626 | { | |
1627 | int ret; | |
1628 | ||
1629 | spin_lock_init(&icom_lock); | |
1630 | ||
1631 | ret = uart_register_driver(&icom_uart_driver); | |
1632 | if (ret) | |
1633 | return ret; | |
1634 | ||
1635 | ret = pci_register_driver(&icom_pci_driver); | |
1636 | ||
1637 | if (ret < 0) | |
1638 | uart_unregister_driver(&icom_uart_driver); | |
1639 | ||
1640 | return ret; | |
1641 | } | |
1642 | ||
1643 | static void __exit icom_exit(void) | |
1644 | { | |
1645 | pci_unregister_driver(&icom_pci_driver); | |
1646 | uart_unregister_driver(&icom_uart_driver); | |
1647 | } | |
1648 | ||
1649 | module_init(icom_init); | |
1650 | module_exit(icom_exit); | |
1651 | ||
1da177e4 LT |
1652 | MODULE_AUTHOR("Michael Anderson <mjanders@us.ibm.com>"); |
1653 | MODULE_DESCRIPTION("IBM iSeries Serial IOA driver"); | |
1654 | MODULE_SUPPORTED_DEVICE | |
1655 | ("IBM iSeries 2745, 2771, 2772, 2742, 2793 and 2805 Communications adapters"); | |
1656 | MODULE_LICENSE("GPL"); | |
1657 |