1 /* 2 * Support for Compaq iPAQ H3600 handheld computer 3 * 4 * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks) 5 * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 */ 12 13 #include <linux/init.h> 14 #include <linux/kernel.h> 15 #include <linux/gpio.h> 16 17 #include <video/sa1100fb.h> 18 19 #include <asm/mach-types.h> 20 #include <asm/mach/arch.h> 21 #include <asm/mach/irda.h> 22 23 #include <mach/h3xxx.h> 24 #include <mach/irqs.h> 25 26 #include "generic.h" 27 28 /* 29 * helper for sa1100fb 30 */ 31 static struct gpio h3600_lcd_gpio[] = { 32 { H3XXX_EGPIO_LCD_ON, GPIOF_OUT_INIT_LOW, "LCD power" }, 33 { H3600_EGPIO_LCD_PCI, GPIOF_OUT_INIT_LOW, "LCD control" }, 34 { H3600_EGPIO_LCD_5V_ON, GPIOF_OUT_INIT_LOW, "LCD 5v" }, 35 { H3600_EGPIO_LVDD_ON, GPIOF_OUT_INIT_LOW, "LCD 9v/-6.5v" }, 36 }; 37 38 static bool h3600_lcd_request(void) 39 { 40 static bool h3600_lcd_ok; 41 int rc; 42 43 if (h3600_lcd_ok) 44 return true; 45 46 rc = gpio_request_array(h3600_lcd_gpio, ARRAY_SIZE(h3600_lcd_gpio)); 47 if (rc) 48 pr_err("%s: can't request GPIOs\n", __func__); 49 else 50 h3600_lcd_ok = true; 51 52 return h3600_lcd_ok; 53 } 54 55 static void h3600_lcd_power(int enable) 56 { 57 if (!h3600_lcd_request()) 58 return; 59 60 gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable); 61 gpio_direction_output(H3600_EGPIO_LCD_PCI, enable); 62 gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable); 63 gpio_direction_output(H3600_EGPIO_LVDD_ON, enable); 64 } 65 66 static const struct sa1100fb_rgb h3600_rgb_16 = { 67 .red = { .offset = 12, .length = 4, }, 68 .green = { .offset = 7, .length = 4, }, 69 .blue = { .offset = 1, .length = 4, }, 70 .transp = { .offset = 0, .length = 0, }, 71 }; 72 73 static struct sa1100fb_mach_info h3600_lcd_info = { 74 .pixclock = 174757, .bpp = 16, 75 .xres = 320, .yres = 240, 76 77 .hsync_len = 3, .vsync_len = 3, 78 .left_margin = 12, .upper_margin = 10, 79 .right_margin = 17, .lower_margin = 1, 80 81 .cmap_static = 1, 82 83 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act, 84 .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2), 85 86 .rgb[RGB_16] = &h3600_rgb_16, 87 88 .lcd_power = h3600_lcd_power, 89 }; 90 91 92 static void __init h3600_map_io(void) 93 { 94 h3xxx_map_io(); 95 } 96 97 /* 98 * This turns the IRDA power on or off on the Compaq H3600 99 */ 100 static struct gpio h3600_irda_gpio[] = { 101 { H3600_EGPIO_IR_ON, GPIOF_OUT_INIT_LOW, "IrDA power" }, 102 { H3600_EGPIO_IR_FSEL, GPIOF_OUT_INIT_LOW, "IrDA fsel" }, 103 }; 104 105 static int h3600_irda_set_power(struct device *dev, unsigned int state) 106 { 107 gpio_set_value(H3600_EGPIO_IR_ON, state); 108 return 0; 109 } 110 111 static void h3600_irda_set_speed(struct device *dev, unsigned int speed) 112 { 113 gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000)); 114 } 115 116 static int h3600_irda_startup(struct device *dev) 117 { 118 return gpio_request_array(h3600_irda_gpio, sizeof(h3600_irda_gpio)); 119 } 120 121 static void h3600_irda_shutdown(struct device *dev) 122 { 123 return gpio_free_array(h3600_irda_gpio, sizeof(h3600_irda_gpio)); 124 } 125 126 static struct irda_platform_data h3600_irda_data = { 127 .set_power = h3600_irda_set_power, 128 .set_speed = h3600_irda_set_speed, 129 .startup = h3600_irda_startup, 130 .shutdown = h3600_irda_shutdown, 131 }; 132 133 static struct gpio_default_state h3600_default_gpio[] = { 134 { H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" }, 135 { H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" }, 136 { H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" }, 137 }; 138 139 static void __init h3600_mach_init(void) 140 { 141 h3xxx_init_gpio(h3600_default_gpio, ARRAY_SIZE(h3600_default_gpio)); 142 h3xxx_mach_init(); 143 144 sa11x0_register_lcd(&h3600_lcd_info); 145 sa11x0_register_irda(&h3600_irda_data); 146 } 147 148 MACHINE_START(H3600, "Compaq iPAQ H3600") 149 .atag_offset = 0x100, 150 .map_io = h3600_map_io, 151 .nr_irqs = SA1100_NR_IRQS, 152 .init_irq = sa1100_init_irq, 153 .init_time = sa1100_timer_init, 154 .init_machine = h3600_mach_init, 155 .init_late = sa11x0_init_late, 156 .restart = sa11x0_restart, 157 MACHINE_END 158 159