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30#include "smscoreapi.h"
31
32#include <linux/moduleparam.h>
33#include <linux/slab.h>
34#include <linux/firmware.h>
35#include <linux/delay.h>
36#include <linux/mmc/card.h>
37#include <linux/mmc/sdio_func.h>
38#include <linux/mmc/sdio_ids.h>
39#include <linux/module.h>
40
41#include "sms-cards.h"
42#include "smsendian.h"
43
44
45
46#define SMSSDIO_DATA 0x00
47#define SMSSDIO_INT 0x04
48#define SMSSDIO_BLOCK_SIZE 128
49
50static const struct sdio_device_id smssdio_ids[] = {
51 {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, SDIO_DEVICE_ID_SIANO_STELLAR),
52 .driver_data = SMS1XXX_BOARD_SIANO_STELLAR},
53 {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, SDIO_DEVICE_ID_SIANO_NOVA_A0),
54 .driver_data = SMS1XXX_BOARD_SIANO_NOVA_A},
55 {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, SDIO_DEVICE_ID_SIANO_NOVA_B0),
56 .driver_data = SMS1XXX_BOARD_SIANO_NOVA_B},
57 {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, SDIO_DEVICE_ID_SIANO_VEGA_A0),
58 .driver_data = SMS1XXX_BOARD_SIANO_VEGA},
59 {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, SDIO_DEVICE_ID_SIANO_VENICE),
60 .driver_data = SMS1XXX_BOARD_SIANO_VEGA},
61 {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, 0x302),
62 .driver_data = SMS1XXX_BOARD_SIANO_MING},
63 {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, 0x500),
64 .driver_data = SMS1XXX_BOARD_SIANO_PELE},
65 {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, 0x600),
66 .driver_data = SMS1XXX_BOARD_SIANO_RIO},
67 {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, 0x700),
68 .driver_data = SMS1XXX_BOARD_SIANO_DENVER_2160},
69 {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, 0x800),
70 .driver_data = SMS1XXX_BOARD_SIANO_DENVER_1530},
71 { },
72};
73
74MODULE_DEVICE_TABLE(sdio, smssdio_ids);
75
76struct smssdio_device {
77 struct sdio_func *func;
78
79 struct smscore_device_t *coredev;
80
81 struct smscore_buffer_t *split_cb;
82};
83
84
85
86
87
88static int smssdio_sendrequest(void *context, void *buffer, size_t size)
89{
90 int ret = 0;
91 struct smssdio_device *smsdev;
92
93 smsdev = context;
94
95 sdio_claim_host(smsdev->func);
96
97 smsendian_handle_tx_message((struct sms_msg_data *) buffer);
98 while (size >= smsdev->func->cur_blksize) {
99 ret = sdio_memcpy_toio(smsdev->func, SMSSDIO_DATA,
100 buffer, smsdev->func->cur_blksize);
101 if (ret)
102 goto out;
103
104 buffer += smsdev->func->cur_blksize;
105 size -= smsdev->func->cur_blksize;
106 }
107
108 if (size) {
109 ret = sdio_memcpy_toio(smsdev->func, SMSSDIO_DATA,
110 buffer, size);
111 }
112
113out:
114 sdio_release_host(smsdev->func);
115
116 return ret;
117}
118
119
120
121
122
123static void smssdio_interrupt(struct sdio_func *func)
124{
125 int ret;
126
127 struct smssdio_device *smsdev;
128 struct smscore_buffer_t *cb;
129 struct sms_msg_hdr *hdr;
130 size_t size;
131
132 smsdev = sdio_get_drvdata(func);
133
134
135
136
137
138 (void)sdio_readb(func, SMSSDIO_INT, &ret);
139 if (ret) {
140 pr_err("Unable to read interrupt register!\n");
141 return;
142 }
143
144 if (smsdev->split_cb == NULL) {
145 cb = smscore_getbuffer(smsdev->coredev);
146 if (!cb) {
147 pr_err("Unable to allocate data buffer!\n");
148 return;
149 }
150
151 ret = sdio_memcpy_fromio(smsdev->func,
152 cb->p,
153 SMSSDIO_DATA,
154 SMSSDIO_BLOCK_SIZE);
155 if (ret) {
156 pr_err("Error %d reading initial block!\n", ret);
157 return;
158 }
159
160 hdr = cb->p;
161
162 if (hdr->msg_flags & MSG_HDR_FLAG_SPLIT_MSG) {
163 smsdev->split_cb = cb;
164 return;
165 }
166
167 if (hdr->msg_length > smsdev->func->cur_blksize)
168 size = hdr->msg_length - smsdev->func->cur_blksize;
169 else
170 size = 0;
171 } else {
172 cb = smsdev->split_cb;
173 hdr = cb->p;
174
175 size = hdr->msg_length - sizeof(struct sms_msg_hdr);
176
177 smsdev->split_cb = NULL;
178 }
179
180 if (size) {
181 void *buffer;
182
183 buffer = cb->p + (hdr->msg_length - size);
184 size = ALIGN(size, SMSSDIO_BLOCK_SIZE);
185
186 BUG_ON(smsdev->func->cur_blksize != SMSSDIO_BLOCK_SIZE);
187
188
189
190
191 ret = sdio_memcpy_fromio(smsdev->func,
192 buffer,
193 SMSSDIO_DATA,
194 size);
195 if (ret && ret != -EINVAL) {
196 smscore_putbuffer(smsdev->coredev, cb);
197 pr_err("Error %d reading data from card!\n", ret);
198 return;
199 }
200
201
202
203
204
205
206
207
208 if (ret == -EINVAL) {
209 while (size) {
210 ret = sdio_memcpy_fromio(smsdev->func,
211 buffer, SMSSDIO_DATA,
212 smsdev->func->cur_blksize);
213 if (ret) {
214 smscore_putbuffer(smsdev->coredev, cb);
215 pr_err("Error %d reading data from card!\n",
216 ret);
217 return;
218 }
219
220 buffer += smsdev->func->cur_blksize;
221 if (size > smsdev->func->cur_blksize)
222 size -= smsdev->func->cur_blksize;
223 else
224 size = 0;
225 }
226 }
227 }
228
229 cb->size = hdr->msg_length;
230 cb->offset = 0;
231
232 smsendian_handle_rx_message((struct sms_msg_data *) cb->p);
233 smscore_onresponse(smsdev->coredev, cb);
234}
235
236static int smssdio_probe(struct sdio_func *func,
237 const struct sdio_device_id *id)
238{
239 int ret;
240
241 int board_id;
242 struct smssdio_device *smsdev;
243 struct smsdevice_params_t params;
244
245 board_id = id->driver_data;
246
247 smsdev = kzalloc(sizeof(struct smssdio_device), GFP_KERNEL);
248 if (!smsdev)
249 return -ENOMEM;
250
251 smsdev->func = func;
252
253 memset(¶ms, 0, sizeof(struct smsdevice_params_t));
254
255 params.device = &func->dev;
256 params.buffer_size = 0x5000;
257 params.num_buffers = 22;
258 params.context = smsdev;
259
260 snprintf(params.devpath, sizeof(params.devpath),
261 "sdio\\%s", sdio_func_id(func));
262
263 params.sendrequest_handler = smssdio_sendrequest;
264
265 params.device_type = sms_get_board(board_id)->type;
266
267 if (params.device_type != SMS_STELLAR)
268 params.flags |= SMS_DEVICE_FAMILY2;
269 else {
270
271
272
273 ret = -ENODEV;
274 goto free;
275 }
276
277 ret = smscore_register_device(¶ms, &smsdev->coredev, GFP_DMA, NULL);
278 if (ret < 0)
279 goto free;
280
281 smscore_set_board_id(smsdev->coredev, board_id);
282
283 sdio_claim_host(func);
284
285 ret = sdio_enable_func(func);
286 if (ret)
287 goto release;
288
289 ret = sdio_set_block_size(func, SMSSDIO_BLOCK_SIZE);
290 if (ret)
291 goto disable;
292
293 ret = sdio_claim_irq(func, smssdio_interrupt);
294 if (ret)
295 goto disable;
296
297 sdio_set_drvdata(func, smsdev);
298
299 sdio_release_host(func);
300
301 ret = smscore_start_device(smsdev->coredev);
302 if (ret < 0)
303 goto reclaim;
304
305 return 0;
306
307reclaim:
308 sdio_claim_host(func);
309 sdio_release_irq(func);
310disable:
311 sdio_disable_func(func);
312release:
313 sdio_release_host(func);
314 smscore_unregister_device(smsdev->coredev);
315free:
316 kfree(smsdev);
317
318 return ret;
319}
320
321static void smssdio_remove(struct sdio_func *func)
322{
323 struct smssdio_device *smsdev;
324
325 smsdev = sdio_get_drvdata(func);
326
327
328 if (smsdev->split_cb)
329 smscore_putbuffer(smsdev->coredev, smsdev->split_cb);
330
331 smscore_unregister_device(smsdev->coredev);
332
333 sdio_claim_host(func);
334 sdio_release_irq(func);
335 sdio_disable_func(func);
336 sdio_release_host(func);
337
338 kfree(smsdev);
339}
340
341static struct sdio_driver smssdio_driver = {
342 .name = "smssdio",
343 .id_table = smssdio_ids,
344 .probe = smssdio_probe,
345 .remove = smssdio_remove,
346};
347
348
349
350
351
352static int __init smssdio_module_init(void)
353{
354 int ret = 0;
355
356 printk(KERN_INFO "smssdio: Siano SMS1xxx SDIO driver\n");
357 printk(KERN_INFO "smssdio: Copyright Pierre Ossman\n");
358
359 ret = sdio_register_driver(&smssdio_driver);
360
361 return ret;
362}
363
364static void __exit smssdio_module_exit(void)
365{
366 sdio_unregister_driver(&smssdio_driver);
367}
368
369module_init(smssdio_module_init);
370module_exit(smssdio_module_exit);
371
372MODULE_DESCRIPTION("Siano SMS1xxx SDIO driver");
373MODULE_AUTHOR("Pierre Ossman");
374MODULE_LICENSE("GPL");
375
