Lines Matching +full:fw +full:- +full:gpios
5 * Copyright (C) 2012-2015 Intel Corporation. All rights reserved.
37 #include <linux/platform_data/nxp-nci.h>
42 #include "nxp-nci.h"
44 #define NXP_NCI_I2C_DRIVER_NAME "nxp-nci_i2c"
66 gpio_set_value(phy->gpio_fw, (mode == NXP_NCI_MODE_FW) ? 1 : 0); in nxp_nci_i2c_set_mode()
67 gpio_set_value(phy->gpio_en, (mode != NXP_NCI_MODE_COLD) ? 1 : 0); in nxp_nci_i2c_set_mode()
71 phy->hard_fault = 0; in nxp_nci_i2c_set_mode()
80 struct i2c_client *client = phy->i2c_dev; in nxp_nci_i2c_write()
82 if (phy->hard_fault != 0) in nxp_nci_i2c_write()
83 return phy->hard_fault; in nxp_nci_i2c_write()
85 r = i2c_master_send(client, skb->data, skb->len); in nxp_nci_i2c_write()
89 r = i2c_master_send(client, skb->data, skb->len); in nxp_nci_i2c_write()
93 nfc_err(&client->dev, "Error %d on I2C send\n", r); in nxp_nci_i2c_write()
94 } else if (r != skb->len) { in nxp_nci_i2c_write()
95 nfc_err(&client->dev, in nxp_nci_i2c_write()
97 r, skb->len); in nxp_nci_i2c_write()
98 r = -EREMOTEIO; in nxp_nci_i2c_write()
115 struct i2c_client *client = phy->i2c_dev; in nxp_nci_i2c_fw_read()
124 nfc_err(&client->dev, "Incorrect header length: %u\n", r); in nxp_nci_i2c_fw_read()
125 r = -EBADMSG; in nxp_nci_i2c_fw_read()
134 r = -ENOMEM; in nxp_nci_i2c_fw_read()
142 nfc_err(&client->dev, in nxp_nci_i2c_fw_read()
145 r = -EBADMSG; in nxp_nci_i2c_fw_read()
161 struct i2c_client *client = phy->i2c_dev; in nxp_nci_i2c_nci_read()
168 nfc_err(&client->dev, "Incorrect header length: %u\n", r); in nxp_nci_i2c_nci_read()
169 r = -EBADMSG; in nxp_nci_i2c_nci_read()
175 r = -ENOMEM; in nxp_nci_i2c_nci_read()
183 nfc_err(&client->dev, in nxp_nci_i2c_nci_read()
186 r = -EBADMSG; in nxp_nci_i2c_nci_read()
207 if (!phy || !phy->ndev) in nxp_nci_i2c_irq_thread_fn()
210 client = phy->i2c_dev; in nxp_nci_i2c_irq_thread_fn()
212 if (!client || irq != client->irq) in nxp_nci_i2c_irq_thread_fn()
215 info = nci_get_drvdata(phy->ndev); in nxp_nci_i2c_irq_thread_fn()
220 mutex_lock(&info->info_lock); in nxp_nci_i2c_irq_thread_fn()
222 if (phy->hard_fault != 0) in nxp_nci_i2c_irq_thread_fn()
225 switch (info->mode) { in nxp_nci_i2c_irq_thread_fn()
233 r = -EREMOTEIO; in nxp_nci_i2c_irq_thread_fn()
237 if (r == -EREMOTEIO) { in nxp_nci_i2c_irq_thread_fn()
238 phy->hard_fault = r; in nxp_nci_i2c_irq_thread_fn()
239 if (info->mode == NXP_NCI_MODE_FW) in nxp_nci_i2c_irq_thread_fn()
240 nxp_nci_fw_recv_frame(phy->ndev, NULL); in nxp_nci_i2c_irq_thread_fn()
243 nfc_err(&client->dev, "Read failed with error %d\n", r); in nxp_nci_i2c_irq_thread_fn()
247 switch (info->mode) { in nxp_nci_i2c_irq_thread_fn()
249 nci_recv_frame(phy->ndev, skb); in nxp_nci_i2c_irq_thread_fn()
252 nxp_nci_fw_recv_frame(phy->ndev, skb); in nxp_nci_i2c_irq_thread_fn()
259 mutex_unlock(&info->info_lock); in nxp_nci_i2c_irq_thread_fn()
272 pp = client->dev.of_node; in nxp_nci_i2c_parse_devtree()
274 return -ENODEV; in nxp_nci_i2c_parse_devtree()
276 r = of_get_named_gpio(pp, "enable-gpios", 0); in nxp_nci_i2c_parse_devtree()
277 if (r == -EPROBE_DEFER) in nxp_nci_i2c_parse_devtree()
278 r = of_get_named_gpio(pp, "enable-gpios", 0); in nxp_nci_i2c_parse_devtree()
280 nfc_err(&client->dev, "Failed to get EN gpio, error: %d\n", r); in nxp_nci_i2c_parse_devtree()
283 phy->gpio_en = r; in nxp_nci_i2c_parse_devtree()
285 r = of_get_named_gpio(pp, "firmware-gpios", 0); in nxp_nci_i2c_parse_devtree()
286 if (r == -EPROBE_DEFER) in nxp_nci_i2c_parse_devtree()
287 r = of_get_named_gpio(pp, "firmware-gpios", 0); in nxp_nci_i2c_parse_devtree()
289 nfc_err(&client->dev, "Failed to get FW gpio, error: %d\n", r); in nxp_nci_i2c_parse_devtree()
292 phy->gpio_fw = r; in nxp_nci_i2c_parse_devtree()
299 struct i2c_client *client = phy->i2c_dev; in nxp_nci_i2c_acpi_config()
302 gpiod_en = devm_gpiod_get_index(&client->dev, NULL, 2, GPIOD_OUT_LOW); in nxp_nci_i2c_acpi_config()
303 gpiod_fw = devm_gpiod_get_index(&client->dev, NULL, 1, GPIOD_OUT_LOW); in nxp_nci_i2c_acpi_config()
306 nfc_err(&client->dev, "No GPIOs\n"); in nxp_nci_i2c_acpi_config()
307 return -EINVAL; in nxp_nci_i2c_acpi_config()
310 phy->gpio_en = desc_to_gpio(gpiod_en); in nxp_nci_i2c_acpi_config()
311 phy->gpio_fw = desc_to_gpio(gpiod_fw); in nxp_nci_i2c_acpi_config()
323 if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { in nxp_nci_i2c_probe()
324 nfc_err(&client->dev, "Need I2C_FUNC_I2C\n"); in nxp_nci_i2c_probe()
325 r = -ENODEV; in nxp_nci_i2c_probe()
329 phy = devm_kzalloc(&client->dev, sizeof(struct nxp_nci_i2c_phy), in nxp_nci_i2c_probe()
332 r = -ENOMEM; in nxp_nci_i2c_probe()
336 phy->i2c_dev = client; in nxp_nci_i2c_probe()
339 pdata = client->dev.platform_data; in nxp_nci_i2c_probe()
341 if (!pdata && client->dev.of_node) { in nxp_nci_i2c_probe()
344 nfc_err(&client->dev, "Failed to get DT data\n"); in nxp_nci_i2c_probe()
348 phy->gpio_en = pdata->gpio_en; in nxp_nci_i2c_probe()
349 phy->gpio_fw = pdata->gpio_fw; in nxp_nci_i2c_probe()
350 } else if (ACPI_HANDLE(&client->dev)) { in nxp_nci_i2c_probe()
356 nfc_err(&client->dev, "No platform data\n"); in nxp_nci_i2c_probe()
357 r = -EINVAL; in nxp_nci_i2c_probe()
361 r = devm_gpio_request_one(&phy->i2c_dev->dev, phy->gpio_en, in nxp_nci_i2c_probe()
366 r = devm_gpio_request_one(&phy->i2c_dev->dev, phy->gpio_fw, in nxp_nci_i2c_probe()
372 r = nxp_nci_probe(phy, &client->dev, &i2c_phy_ops, in nxp_nci_i2c_probe()
373 NXP_NCI_I2C_MAX_PAYLOAD, &phy->ndev); in nxp_nci_i2c_probe()
377 r = request_threaded_irq(client->irq, NULL, in nxp_nci_i2c_probe()
382 nfc_err(&client->dev, "Unable to register IRQ handler\n"); in nxp_nci_i2c_probe()
392 nxp_nci_remove(phy->ndev); in nxp_nci_i2c_remove()
393 free_irq(client->irq, phy); in nxp_nci_i2c_remove()
399 {"nxp-nci_i2c", 0},
405 { .compatible = "nxp,nxp-nci-i2c", },