arch/arm/mach-mvebu/netxbig.c

   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
  38 static int netxbig_v2_gpio_ext_addr[] = { 47, 48, 49 };
  39 static int netxbig_v2_gpio_ext_data[] = { 44, 45, 46 };
  40
  41 static 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
  94 static 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
 102 static 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
 110 static 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
 118 static 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
 137 static 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
 146 static 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
 154 static 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
 169 static 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
 177 static 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
 185 void __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 }