1/*
2 * arch/arm/mach-mvbu/board-netxbig.c
3 *
4 * LaCie 2Big and 5Big Network v2 board setup
5 *
6 * Copyright (C) 2010 Simon Guinot <sguinot@lacie.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 */
18
19#include <linux/kernel.h>
20#include <linux/of.h>
21#include <linux/platform_device.h>
22#include <linux/platform_data/leds-kirkwood-netxbig.h>
23#include "common.h"
24
25/*****************************************************************************
26 * GPIO extension LEDs
27 ****************************************************************************/
28
29/*
30 * The LEDs are controlled by a CPLD and can be configured through a GPIO
31 * extension bus:
32 *
33 * - address register : bit [0-2] -> GPIO [47-49]
34 * - data register    : bit [0-2] -> GPIO [44-46]
35 * - enable register  : GPIO 29
36 */
37
38static int netxbig_v2_gpio_ext_addr[] = { 47, 48, 49 };
39static int netxbig_v2_gpio_ext_data[] = { 44, 45, 46 };
40
41static struct netxbig_gpio_ext netxbig_v2_gpio_ext = {
42	.addr		= netxbig_v2_gpio_ext_addr,
43	.num_addr	= ARRAY_SIZE(netxbig_v2_gpio_ext_addr),
44	.data		= netxbig_v2_gpio_ext_data,
45	.num_data	= ARRAY_SIZE(netxbig_v2_gpio_ext_data),
46	.enable		= 29,
47};
48
49/*
50 * Address register selection:
51 *
52 * addr | register
53 * ----------------------------
54 *   0  | front LED
55 *   1  | front LED brightness
56 *   2  | SATA LED brightness
57 *   3  | SATA0 LED
58 *   4  | SATA1 LED
59 *   5  | SATA2 LED
60 *   6  | SATA3 LED
61 *   7  | SATA4 LED
62 *
63 * Data register configuration:
64 *
65 * data | LED brightness
66 * -------------------------------------------------
67 *   0  | min (off)
68 *   -  | -
69 *   7  | max
70 *
71 * data | front LED mode
72 * -------------------------------------------------
73 *   0  | fix off
74 *   1  | fix blue on
75 *   2  | fix red on
76 *   3  | blink blue on=1 sec and blue off=1 sec
77 *   4  | blink red on=1 sec and red off=1 sec
78 *   5  | blink blue on=2.5 sec and red on=0.5 sec
79 *   6  | blink blue on=1 sec and red on=1 sec
80 *   7  | blink blue on=0.5 sec and blue off=2.5 sec
81 *
82 * data | SATA LED mode
83 * -------------------------------------------------
84 *   0  | fix off
85 *   1  | SATA activity blink
86 *   2  | fix red on
87 *   3  | blink blue on=1 sec and blue off=1 sec
88 *   4  | blink red on=1 sec and red off=1 sec
89 *   5  | blink blue on=2.5 sec and red on=0.5 sec
90 *   6  | blink blue on=1 sec and red on=1 sec
91 *   7  | fix blue on
92 */
93
94static int netxbig_v2_red_mled[NETXBIG_LED_MODE_NUM] = {
95	[NETXBIG_LED_OFF]	= 0,
96	[NETXBIG_LED_ON]	= 2,
97	[NETXBIG_LED_SATA]	= NETXBIG_LED_INVALID_MODE,
98	[NETXBIG_LED_TIMER1]	= 4,
99	[NETXBIG_LED_TIMER2]	= NETXBIG_LED_INVALID_MODE,
100};
101
102static int netxbig_v2_blue_pwr_mled[NETXBIG_LED_MODE_NUM] = {
103	[NETXBIG_LED_OFF]	= 0,
104	[NETXBIG_LED_ON]	= 1,
105	[NETXBIG_LED_SATA]	= NETXBIG_LED_INVALID_MODE,
106	[NETXBIG_LED_TIMER1]	= 3,
107	[NETXBIG_LED_TIMER2]	= 7,
108};
109
110static int netxbig_v2_blue_sata_mled[NETXBIG_LED_MODE_NUM] = {
111	[NETXBIG_LED_OFF]	= 0,
112	[NETXBIG_LED_ON]	= 7,
113	[NETXBIG_LED_SATA]	= 1,
114	[NETXBIG_LED_TIMER1]	= 3,
115	[NETXBIG_LED_TIMER2]	= NETXBIG_LED_INVALID_MODE,
116};
117
118static struct netxbig_led_timer netxbig_v2_led_timer[] = {
119	[0] = {
120		.delay_on	= 500,
121		.delay_off	= 500,
122		.mode		= NETXBIG_LED_TIMER1,
123	},
124	[1] = {
125		.delay_on	= 500,
126		.delay_off	= 1000,
127		.mode		= NETXBIG_LED_TIMER2,
128	},
129};
130
131#define NETXBIG_LED(_name, maddr, mval, baddr)			\
132	{ .name		= _name,				\
133	  .mode_addr	= maddr,				\
134	  .mode_val	= mval,					\
135	  .bright_addr	= baddr }
136
137static struct netxbig_led net2big_v2_leds_ctrl[] = {
138	NETXBIG_LED("net2big-v2:blue:power", 0, netxbig_v2_blue_pwr_mled,  1),
139	NETXBIG_LED("net2big-v2:red:power",  0, netxbig_v2_red_mled,       1),
140	NETXBIG_LED("net2big-v2:blue:sata0", 3, netxbig_v2_blue_sata_mled, 2),
141	NETXBIG_LED("net2big-v2:red:sata0",  3, netxbig_v2_red_mled,       2),
142	NETXBIG_LED("net2big-v2:blue:sata1", 4, netxbig_v2_blue_sata_mled, 2),
143	NETXBIG_LED("net2big-v2:red:sata1",  4, netxbig_v2_red_mled,       2),
144};
145
146static struct netxbig_led_platform_data net2big_v2_leds_data = {
147	.gpio_ext	= &netxbig_v2_gpio_ext,
148	.timer		= netxbig_v2_led_timer,
149	.num_timer	= ARRAY_SIZE(netxbig_v2_led_timer),
150	.leds		= net2big_v2_leds_ctrl,
151	.num_leds	= ARRAY_SIZE(net2big_v2_leds_ctrl),
152};
153
154static struct netxbig_led net5big_v2_leds_ctrl[] = {
155	NETXBIG_LED("net5big-v2:blue:power", 0, netxbig_v2_blue_pwr_mled,  1),
156	NETXBIG_LED("net5big-v2:red:power",  0, netxbig_v2_red_mled,       1),
157	NETXBIG_LED("net5big-v2:blue:sata0", 3, netxbig_v2_blue_sata_mled, 2),
158	NETXBIG_LED("net5big-v2:red:sata0",  3, netxbig_v2_red_mled,       2),
159	NETXBIG_LED("net5big-v2:blue:sata1", 4, netxbig_v2_blue_sata_mled, 2),
160	NETXBIG_LED("net5big-v2:red:sata1",  4, netxbig_v2_red_mled,       2),
161	NETXBIG_LED("net5big-v2:blue:sata2", 5, netxbig_v2_blue_sata_mled, 2),
162	NETXBIG_LED("net5big-v2:red:sata2",  5, netxbig_v2_red_mled,       2),
163	NETXBIG_LED("net5big-v2:blue:sata3", 6, netxbig_v2_blue_sata_mled, 2),
164	NETXBIG_LED("net5big-v2:red:sata3",  6, netxbig_v2_red_mled,       2),
165	NETXBIG_LED("net5big-v2:blue:sata4", 7, netxbig_v2_blue_sata_mled, 2),
166	NETXBIG_LED("net5big-v2:red:sata4",  7, netxbig_v2_red_mled,       2),
167};
168
169static struct netxbig_led_platform_data net5big_v2_leds_data = {
170	.gpio_ext	= &netxbig_v2_gpio_ext,
171	.timer		= netxbig_v2_led_timer,
172	.num_timer	= ARRAY_SIZE(netxbig_v2_led_timer),
173	.leds		= net5big_v2_leds_ctrl,
174	.num_leds	= ARRAY_SIZE(net5big_v2_leds_ctrl),
175};
176
177static struct platform_device netxbig_v2_leds = {
178	.name		= "leds-netxbig",
179	.id		= -1,
180	.dev		= {
181		.platform_data	= &net2big_v2_leds_data,
182	},
183};
184
185void __init netxbig_init(void)
186{
187
188	if (of_machine_is_compatible("lacie,net5big_v2"))
189		netxbig_v2_leds.dev.platform_data = &net5big_v2_leds_data;
190	platform_device_register(&netxbig_v2_leds);
191}
192