This source file includes following definitions.
- s3fwrn5_firmware_update
- s3fwrn5_nci_open
- s3fwrn5_nci_close
- s3fwrn5_nci_send
- s3fwrn5_nci_post_setup
- s3fwrn5_probe
- s3fwrn5_remove
- s3fwrn5_recv_frame
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8
9 #include <linux/module.h>
10 #include <net/nfc/nci_core.h>
11
12 #include "s3fwrn5.h"
13 #include "firmware.h"
14 #include "nci.h"
15
16 #define S3FWRN5_NFC_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \
17 NFC_PROTO_MIFARE_MASK | \
18 NFC_PROTO_FELICA_MASK | \
19 NFC_PROTO_ISO14443_MASK | \
20 NFC_PROTO_ISO14443_B_MASK | \
21 NFC_PROTO_ISO15693_MASK)
22
23 static int s3fwrn5_firmware_update(struct s3fwrn5_info *info)
24 {
25 bool need_update;
26 int ret;
27
28 s3fwrn5_fw_init(&info->fw_info, "sec_s3fwrn5_firmware.bin");
29
30
31
32 s3fwrn5_set_wake(info, false);
33 s3fwrn5_set_mode(info, S3FWRN5_MODE_FW);
34
35 ret = s3fwrn5_fw_setup(&info->fw_info);
36 if (ret < 0)
37 return ret;
38
39 need_update = s3fwrn5_fw_check_version(&info->fw_info,
40 info->ndev->manufact_specific_info);
41 if (!need_update)
42 goto out;
43
44 dev_info(&info->ndev->nfc_dev->dev, "Detected new firmware version\n");
45
46 ret = s3fwrn5_fw_download(&info->fw_info);
47 if (ret < 0)
48 goto out;
49
50
51
52 s3fwrn5_set_mode(info, S3FWRN5_MODE_NCI);
53
54 s3fwrn5_set_wake(info, true);
55 ret = s3fwrn5_nci_rf_configure(info, "sec_s3fwrn5_rfreg.bin");
56 s3fwrn5_set_wake(info, false);
57
58 out:
59 s3fwrn5_set_mode(info, S3FWRN5_MODE_COLD);
60 s3fwrn5_fw_cleanup(&info->fw_info);
61 return ret;
62 }
63
64 static int s3fwrn5_nci_open(struct nci_dev *ndev)
65 {
66 struct s3fwrn5_info *info = nci_get_drvdata(ndev);
67
68 if (s3fwrn5_get_mode(info) != S3FWRN5_MODE_COLD)
69 return -EBUSY;
70
71 s3fwrn5_set_mode(info, S3FWRN5_MODE_NCI);
72 s3fwrn5_set_wake(info, true);
73
74 return 0;
75 }
76
77 static int s3fwrn5_nci_close(struct nci_dev *ndev)
78 {
79 struct s3fwrn5_info *info = nci_get_drvdata(ndev);
80
81 s3fwrn5_set_wake(info, false);
82 s3fwrn5_set_mode(info, S3FWRN5_MODE_COLD);
83
84 return 0;
85 }
86
87 static int s3fwrn5_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
88 {
89 struct s3fwrn5_info *info = nci_get_drvdata(ndev);
90 int ret;
91
92 mutex_lock(&info->mutex);
93
94 if (s3fwrn5_get_mode(info) != S3FWRN5_MODE_NCI) {
95 mutex_unlock(&info->mutex);
96 return -EINVAL;
97 }
98
99 ret = s3fwrn5_write(info, skb);
100 if (ret < 0)
101 kfree_skb(skb);
102
103 mutex_unlock(&info->mutex);
104 return ret;
105 }
106
107 static int s3fwrn5_nci_post_setup(struct nci_dev *ndev)
108 {
109 struct s3fwrn5_info *info = nci_get_drvdata(ndev);
110 int ret;
111
112 ret = s3fwrn5_firmware_update(info);
113 if (ret < 0)
114 goto out;
115
116
117
118 s3fwrn5_set_mode(info, S3FWRN5_MODE_NCI);
119 s3fwrn5_set_wake(info, true);
120
121 ret = nci_core_reset(info->ndev);
122 if (ret < 0)
123 goto out;
124
125 ret = nci_core_init(info->ndev);
126
127 out:
128 return ret;
129 }
130
131 static struct nci_ops s3fwrn5_nci_ops = {
132 .open = s3fwrn5_nci_open,
133 .close = s3fwrn5_nci_close,
134 .send = s3fwrn5_nci_send,
135 .post_setup = s3fwrn5_nci_post_setup,
136 };
137
138 int s3fwrn5_probe(struct nci_dev **ndev, void *phy_id, struct device *pdev,
139 const struct s3fwrn5_phy_ops *phy_ops, unsigned int max_payload)
140 {
141 struct s3fwrn5_info *info;
142 int ret;
143
144 info = devm_kzalloc(pdev, sizeof(*info), GFP_KERNEL);
145 if (!info)
146 return -ENOMEM;
147
148 info->phy_id = phy_id;
149 info->pdev = pdev;
150 info->phy_ops = phy_ops;
151 info->max_payload = max_payload;
152 mutex_init(&info->mutex);
153
154 s3fwrn5_set_mode(info, S3FWRN5_MODE_COLD);
155
156 s3fwrn5_nci_get_prop_ops(&s3fwrn5_nci_ops.prop_ops,
157 &s3fwrn5_nci_ops.n_prop_ops);
158
159 info->ndev = nci_allocate_device(&s3fwrn5_nci_ops,
160 S3FWRN5_NFC_PROTOCOLS, 0, 0);
161 if (!info->ndev)
162 return -ENOMEM;
163
164 nci_set_parent_dev(info->ndev, pdev);
165 nci_set_drvdata(info->ndev, info);
166
167 ret = nci_register_device(info->ndev);
168 if (ret < 0) {
169 nci_free_device(info->ndev);
170 return ret;
171 }
172
173 info->fw_info.ndev = info->ndev;
174
175 *ndev = info->ndev;
176
177 return ret;
178 }
179 EXPORT_SYMBOL(s3fwrn5_probe);
180
181 void s3fwrn5_remove(struct nci_dev *ndev)
182 {
183 struct s3fwrn5_info *info = nci_get_drvdata(ndev);
184
185 s3fwrn5_set_mode(info, S3FWRN5_MODE_COLD);
186
187 nci_unregister_device(ndev);
188 nci_free_device(ndev);
189 }
190 EXPORT_SYMBOL(s3fwrn5_remove);
191
192 int s3fwrn5_recv_frame(struct nci_dev *ndev, struct sk_buff *skb,
193 enum s3fwrn5_mode mode)
194 {
195 switch (mode) {
196 case S3FWRN5_MODE_NCI:
197 return nci_recv_frame(ndev, skb);
198 case S3FWRN5_MODE_FW:
199 return s3fwrn5_fw_recv_frame(ndev, skb);
200 default:
201 return -ENODEV;
202 }
203 }
204 EXPORT_SYMBOL(s3fwrn5_recv_frame);
205
206 MODULE_LICENSE("GPL");
207 MODULE_DESCRIPTION("Samsung S3FWRN5 NFC driver");
208 MODULE_AUTHOR("Robert Baldyga <r.baldyga@samsung.com>");