Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
3b2e46f8 RW |
2 | /* |
3 | * LED Driver for the Freecom FSG-3 | |
4 | * | |
5 | * Copyright (c) 2008 Rod Whitby <rod@whitby.id.au> | |
6 | * | |
7 | * Author: Rod Whitby <rod@whitby.id.au> | |
8 | * | |
9 | * Based on leds-spitz.c | |
10 | * Copyright 2005-2006 Openedhand Ltd. | |
11 | * Author: Richard Purdie <rpurdie@openedhand.com> | |
3b2e46f8 RW |
12 | */ |
13 | ||
14 | #include <linux/kernel.h> | |
3b2e46f8 RW |
15 | #include <linux/platform_device.h> |
16 | #include <linux/leds.h> | |
54f4dedb | 17 | #include <linux/module.h> |
aa2dcf9d | 18 | #include <linux/io.h> |
a09e64fb | 19 | #include <mach/hardware.h> |
3b2e46f8 | 20 | |
914e7bc2 KH |
21 | #define FSG_LED_WLAN_BIT 0 |
22 | #define FSG_LED_WAN_BIT 1 | |
23 | #define FSG_LED_SATA_BIT 2 | |
24 | #define FSG_LED_USB_BIT 4 | |
25 | #define FSG_LED_RING_BIT 5 | |
26 | #define FSG_LED_SYNC_BIT 7 | |
27 | ||
3b2e46f8 RW |
28 | static short __iomem *latch_address; |
29 | static unsigned short latch_value; | |
30 | ||
31 | ||
32 | static void fsg_led_wlan_set(struct led_classdev *led_cdev, | |
33 | enum led_brightness value) | |
34 | { | |
35 | if (value) { | |
36 | latch_value &= ~(1 << FSG_LED_WLAN_BIT); | |
37 | *latch_address = latch_value; | |
38 | } else { | |
39 | latch_value |= (1 << FSG_LED_WLAN_BIT); | |
40 | *latch_address = latch_value; | |
41 | } | |
42 | } | |
43 | ||
44 | static void fsg_led_wan_set(struct led_classdev *led_cdev, | |
45 | enum led_brightness value) | |
46 | { | |
47 | if (value) { | |
48 | latch_value &= ~(1 << FSG_LED_WAN_BIT); | |
49 | *latch_address = latch_value; | |
50 | } else { | |
51 | latch_value |= (1 << FSG_LED_WAN_BIT); | |
52 | *latch_address = latch_value; | |
53 | } | |
54 | } | |
55 | ||
56 | static void fsg_led_sata_set(struct led_classdev *led_cdev, | |
57 | enum led_brightness value) | |
58 | { | |
59 | if (value) { | |
60 | latch_value &= ~(1 << FSG_LED_SATA_BIT); | |
61 | *latch_address = latch_value; | |
62 | } else { | |
63 | latch_value |= (1 << FSG_LED_SATA_BIT); | |
64 | *latch_address = latch_value; | |
65 | } | |
66 | } | |
67 | ||
68 | static void fsg_led_usb_set(struct led_classdev *led_cdev, | |
69 | enum led_brightness value) | |
70 | { | |
71 | if (value) { | |
72 | latch_value &= ~(1 << FSG_LED_USB_BIT); | |
73 | *latch_address = latch_value; | |
74 | } else { | |
75 | latch_value |= (1 << FSG_LED_USB_BIT); | |
76 | *latch_address = latch_value; | |
77 | } | |
78 | } | |
79 | ||
80 | static void fsg_led_sync_set(struct led_classdev *led_cdev, | |
81 | enum led_brightness value) | |
82 | { | |
83 | if (value) { | |
84 | latch_value &= ~(1 << FSG_LED_SYNC_BIT); | |
85 | *latch_address = latch_value; | |
86 | } else { | |
87 | latch_value |= (1 << FSG_LED_SYNC_BIT); | |
88 | *latch_address = latch_value; | |
89 | } | |
90 | } | |
91 | ||
92 | static void fsg_led_ring_set(struct led_classdev *led_cdev, | |
93 | enum led_brightness value) | |
94 | { | |
95 | if (value) { | |
96 | latch_value &= ~(1 << FSG_LED_RING_BIT); | |
97 | *latch_address = latch_value; | |
98 | } else { | |
99 | latch_value |= (1 << FSG_LED_RING_BIT); | |
100 | *latch_address = latch_value; | |
101 | } | |
102 | } | |
103 | ||
104 | ||
3b2e46f8 RW |
105 | static struct led_classdev fsg_wlan_led = { |
106 | .name = "fsg:blue:wlan", | |
107 | .brightness_set = fsg_led_wlan_set, | |
859cb7f2 | 108 | .flags = LED_CORE_SUSPENDRESUME, |
3b2e46f8 RW |
109 | }; |
110 | ||
111 | static struct led_classdev fsg_wan_led = { | |
112 | .name = "fsg:blue:wan", | |
113 | .brightness_set = fsg_led_wan_set, | |
859cb7f2 | 114 | .flags = LED_CORE_SUSPENDRESUME, |
3b2e46f8 RW |
115 | }; |
116 | ||
117 | static struct led_classdev fsg_sata_led = { | |
118 | .name = "fsg:blue:sata", | |
119 | .brightness_set = fsg_led_sata_set, | |
859cb7f2 | 120 | .flags = LED_CORE_SUSPENDRESUME, |
3b2e46f8 RW |
121 | }; |
122 | ||
123 | static struct led_classdev fsg_usb_led = { | |
124 | .name = "fsg:blue:usb", | |
125 | .brightness_set = fsg_led_usb_set, | |
859cb7f2 | 126 | .flags = LED_CORE_SUSPENDRESUME, |
3b2e46f8 RW |
127 | }; |
128 | ||
129 | static struct led_classdev fsg_sync_led = { | |
130 | .name = "fsg:blue:sync", | |
131 | .brightness_set = fsg_led_sync_set, | |
859cb7f2 | 132 | .flags = LED_CORE_SUSPENDRESUME, |
3b2e46f8 RW |
133 | }; |
134 | ||
135 | static struct led_classdev fsg_ring_led = { | |
136 | .name = "fsg:blue:ring", | |
137 | .brightness_set = fsg_led_ring_set, | |
859cb7f2 | 138 | .flags = LED_CORE_SUSPENDRESUME, |
3b2e46f8 RW |
139 | }; |
140 | ||
141 | ||
3b2e46f8 RW |
142 | static int fsg_led_probe(struct platform_device *pdev) |
143 | { | |
144 | int ret; | |
145 | ||
07f696c7 | 146 | /* Map the LED chip select address space */ |
aa2dcf9d JH |
147 | latch_address = (unsigned short *) devm_ioremap(&pdev->dev, |
148 | IXP4XX_EXP_BUS_BASE(2), 512); | |
149 | if (!latch_address) | |
150 | return -ENOMEM; | |
07f696c7 SW |
151 | |
152 | latch_value = 0xffff; | |
153 | *latch_address = latch_value; | |
154 | ||
c2d4af93 | 155 | ret = devm_led_classdev_register(&pdev->dev, &fsg_wlan_led); |
3b2e46f8 | 156 | if (ret < 0) |
c2d4af93 | 157 | return ret; |
3b2e46f8 | 158 | |
c2d4af93 | 159 | ret = devm_led_classdev_register(&pdev->dev, &fsg_wan_led); |
3b2e46f8 | 160 | if (ret < 0) |
c2d4af93 | 161 | return ret; |
3b2e46f8 | 162 | |
c2d4af93 | 163 | ret = devm_led_classdev_register(&pdev->dev, &fsg_sata_led); |
3b2e46f8 | 164 | if (ret < 0) |
c2d4af93 | 165 | return ret; |
3b2e46f8 | 166 | |
c2d4af93 | 167 | ret = devm_led_classdev_register(&pdev->dev, &fsg_usb_led); |
3b2e46f8 | 168 | if (ret < 0) |
c2d4af93 | 169 | return ret; |
3b2e46f8 | 170 | |
c2d4af93 | 171 | ret = devm_led_classdev_register(&pdev->dev, &fsg_sync_led); |
3b2e46f8 | 172 | if (ret < 0) |
c2d4af93 | 173 | return ret; |
3b2e46f8 | 174 | |
c2d4af93 | 175 | ret = devm_led_classdev_register(&pdev->dev, &fsg_ring_led); |
3b2e46f8 | 176 | if (ret < 0) |
c2d4af93 | 177 | return ret; |
3b2e46f8 RW |
178 | |
179 | return ret; | |
180 | } | |
181 | ||
3b2e46f8 RW |
182 | static struct platform_driver fsg_led_driver = { |
183 | .probe = fsg_led_probe, | |
3b2e46f8 RW |
184 | .driver = { |
185 | .name = "fsg-led", | |
186 | }, | |
187 | }; | |
188 | ||
892a8843 | 189 | module_platform_driver(fsg_led_driver); |
3b2e46f8 RW |
190 | |
191 | MODULE_AUTHOR("Rod Whitby <rod@whitby.id.au>"); | |
192 | MODULE_DESCRIPTION("Freecom FSG-3 LED driver"); | |
193 | MODULE_LICENSE("GPL"); |