spi.c (a1269dd116319335db6d73013a31c038486c813e) spi.c (3648dc6d27f648b8e3ce9b48874627a833d53c3a)
1/*
2 * SPI Link Layer for ST NCI based Driver
3 * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *

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48MODULE_DEVICE_TABLE(spi, st_nci_spi_id_table);
49
50struct st_nci_spi_phy {
51 struct spi_device *spi_dev;
52 struct llt_ndlc *ndlc;
53
54 unsigned int gpio_reset;
55 unsigned int irq_polarity;
1/*
2 * SPI Link Layer for ST NCI based Driver
3 * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *

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48MODULE_DEVICE_TABLE(spi, st_nci_spi_id_table);
49
50struct st_nci_spi_phy {
51 struct spi_device *spi_dev;
52 struct llt_ndlc *ndlc;
53
54 unsigned int gpio_reset;
55 unsigned int irq_polarity;
56
57 struct st_nci_se_status se_status;
56};
57
58#define SPI_DUMP_SKB(info, skb) \
59do { \
60 pr_debug("%s:\n", info); \
61 print_hex_dump(KERN_DEBUG, "spi: ", DUMP_PREFIX_OFFSET, \
62 16, 1, (skb)->data, (skb)->len, 0); \
63} while (0)

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255 if (r) {
256 nfc_err(&dev->dev, "Failed to request reset pin\n");
257 return r;
258 }
259 phy->gpio_reset = gpio;
260
261 phy->irq_polarity = irq_get_trigger_type(dev->irq);
262
58};
59
60#define SPI_DUMP_SKB(info, skb) \
61do { \
62 pr_debug("%s:\n", info); \
63 print_hex_dump(KERN_DEBUG, "spi: ", DUMP_PREFIX_OFFSET, \
64 16, 1, (skb)->data, (skb)->len, 0); \
65} while (0)

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257 if (r) {
258 nfc_err(&dev->dev, "Failed to request reset pin\n");
259 return r;
260 }
261 phy->gpio_reset = gpio;
262
263 phy->irq_polarity = irq_get_trigger_type(dev->irq);
264
265 phy->se_status.is_ese_present =
266 of_property_read_bool(pp, "ese-present");
267 phy->se_status.is_uicc_present =
268 of_property_read_bool(pp, "uicc-present");
269
263 return 0;
264}
265#else
266static int st_nci_spi_of_request_resources(struct spi_device *dev)
267{
268 return -ENODEV;
269}
270#endif

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287
288 r = devm_gpio_request_one(&dev->dev,
289 phy->gpio_reset, GPIOF_OUT_INIT_HIGH, "clf_reset");
290 if (r) {
291 pr_err("%s : reset gpio_request failed\n", __FILE__);
292 return r;
293 }
294
270 return 0;
271}
272#else
273static int st_nci_spi_of_request_resources(struct spi_device *dev)
274{
275 return -ENODEV;
276}
277#endif

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294
295 r = devm_gpio_request_one(&dev->dev,
296 phy->gpio_reset, GPIOF_OUT_INIT_HIGH, "clf_reset");
297 if (r) {
298 pr_err("%s : reset gpio_request failed\n", __FILE__);
299 return r;
300 }
301
302 phy->se_status.is_ese_present = pdata->is_ese_present;
303 phy->se_status.is_uicc_present = pdata->is_uicc_present;
304
295 return 0;
296}
297
298static int st_nci_spi_probe(struct spi_device *dev)
299{
300 struct st_nci_spi_phy *phy;
301 struct st_nci_nfc_platform_data *pdata;
302 int r;

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337 } else {
338 nfc_err(&dev->dev,
339 "st_nci platform resources not available\n");
340 return -ENODEV;
341 }
342
343 r = ndlc_probe(phy, &spi_phy_ops, &dev->dev,
344 ST_NCI_FRAME_HEADROOM, ST_NCI_FRAME_TAILROOM,
305 return 0;
306}
307
308static int st_nci_spi_probe(struct spi_device *dev)
309{
310 struct st_nci_spi_phy *phy;
311 struct st_nci_nfc_platform_data *pdata;
312 int r;

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347 } else {
348 nfc_err(&dev->dev,
349 "st_nci platform resources not available\n");
350 return -ENODEV;
351 }
352
353 r = ndlc_probe(phy, &spi_phy_ops, &dev->dev,
354 ST_NCI_FRAME_HEADROOM, ST_NCI_FRAME_TAILROOM,
345 &phy->ndlc);
355 &phy->ndlc, &phy->se_status);
346 if (r < 0) {
347 nfc_err(&dev->dev, "Unable to register ndlc layer\n");
348 return r;
349 }
350
351 r = devm_request_threaded_irq(&dev->dev, dev->irq, NULL,
352 st_nci_irq_thread_fn,
353 phy->irq_polarity | IRQF_ONESHOT,

--- 41 unchanged lines hidden --- 		356 if (r < 0) {
357 nfc_err(&dev->dev, "Unable to register ndlc layer\n");
358 return r;
359 }
360
361 r = devm_request_threaded_irq(&dev->dev, dev->irq, NULL,
362 st_nci_irq_thread_fn,
363 phy->irq_polarity | IRQF_ONESHOT,

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