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19#include <linux/nl80211.h>
20#include <linux/platform_device.h>
21#include <linux/module.h>
22#include <linux/mod_devicetable.h>
23#include "ath9k.h"
24
25static const struct platform_device_id ath9k_platform_id_table[] = {
26 {
27 .name = "ath9k",
28 .driver_data = AR5416_AR9100_DEVID,
29 },
30 {
31 .name = "ar933x_wmac",
32 .driver_data = AR9300_DEVID_AR9330,
33 },
34 {
35 .name = "ar934x_wmac",
36 .driver_data = AR9300_DEVID_AR9340,
37 },
38 {
39 .name = "qca955x_wmac",
40 .driver_data = AR9300_DEVID_QCA955X,
41 },
42 {
43 .name = "qca953x_wmac",
44 .driver_data = AR9300_DEVID_AR953X,
45 },
46 {
47 .name = "qca956x_wmac",
48 .driver_data = AR9300_DEVID_QCA956X,
49 },
50 {},
51};
52
53
54static void ath_ahb_read_cachesize(struct ath_common *common, int *csz)
55{
56 *csz = L1_CACHE_BYTES >> 2;
57}
58
59static bool ath_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
60{
61 ath_err(common, "%s: eeprom data has to be provided externally\n",
62 __func__);
63 return false;
64}
65
66static const struct ath_bus_ops ath_ahb_bus_ops = {
67 .ath_bus_type = ATH_AHB,
68 .read_cachesize = ath_ahb_read_cachesize,
69 .eeprom_read = ath_ahb_eeprom_read,
70};
71
72static int ath_ahb_probe(struct platform_device *pdev)
73{
74 void __iomem *mem;
75 struct ath_softc *sc;
76 struct ieee80211_hw *hw;
77 struct resource *res;
78 const struct platform_device_id *id = platform_get_device_id(pdev);
79 int irq;
80 int ret = 0;
81 struct ath_hw *ah;
82 char hw_name[64];
83
84 if (!dev_get_platdata(&pdev->dev)) {
85 dev_err(&pdev->dev, "no platform data specified\n");
86 return -EINVAL;
87 }
88
89 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
90 if (res == NULL) {
91 dev_err(&pdev->dev, "no memory resource found\n");
92 return -ENXIO;
93 }
94
95 mem = devm_ioremap(&pdev->dev, res->start, resource_size(res));
96 if (mem == NULL) {
97 dev_err(&pdev->dev, "ioremap failed\n");
98 return -ENOMEM;
99 }
100
101 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
102 if (res == NULL) {
103 dev_err(&pdev->dev, "no IRQ resource found\n");
104 return -ENXIO;
105 }
106
107 irq = res->start;
108
109 ath9k_fill_chanctx_ops();
110 hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops);
111 if (hw == NULL) {
112 dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
113 return -ENOMEM;
114 }
115
116 SET_IEEE80211_DEV(hw, &pdev->dev);
117 platform_set_drvdata(pdev, hw);
118
119 sc = hw->priv;
120 sc->hw = hw;
121 sc->dev = &pdev->dev;
122 sc->mem = mem;
123 sc->irq = irq;
124
125 ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc);
126 if (ret) {
127 dev_err(&pdev->dev, "request_irq failed\n");
128 goto err_free_hw;
129 }
130
131 ret = ath9k_init_device(id->driver_data, sc, &ath_ahb_bus_ops);
132 if (ret) {
133 dev_err(&pdev->dev, "failed to initialize device\n");
134 goto err_irq;
135 }
136
137 ah = sc->sc_ah;
138 ath9k_hw_name(ah, hw_name, sizeof(hw_name));
139 wiphy_info(hw->wiphy, "%s mem=0x%lx, irq=%d\n",
140 hw_name, (unsigned long)mem, irq);
141
142 return 0;
143
144 err_irq:
145 free_irq(irq, sc);
146 err_free_hw:
147 ieee80211_free_hw(hw);
148 return ret;
149}
150
151static int ath_ahb_remove(struct platform_device *pdev)
152{
153 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
154
155 if (hw) {
156 struct ath_softc *sc = hw->priv;
157
158 ath9k_deinit_device(sc);
159 free_irq(sc->irq, sc);
160 ieee80211_free_hw(sc->hw);
161 }
162
163 return 0;
164}
165
166static struct platform_driver ath_ahb_driver = {
167 .probe = ath_ahb_probe,
168 .remove = ath_ahb_remove,
169 .driver = {
170 .name = "ath9k",
171 },
172 .id_table = ath9k_platform_id_table,
173};
174
175MODULE_DEVICE_TABLE(platform, ath9k_platform_id_table);
176
177int ath_ahb_init(void)
178{
179 return platform_driver_register(&ath_ahb_driver);
180}
181
182void ath_ahb_exit(void)
183{
184 platform_driver_unregister(&ath_ahb_driver);
185}
186
