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 void h3600_lcd_power(int enable) 32 { 33 if (gpio_request(H3XXX_EGPIO_LCD_ON, "LCD power")) { 34 pr_err("%s: can't request H3XXX_EGPIO_LCD_ON\n", __func__); 35 goto err1; 36 } 37 if (gpio_request(H3600_EGPIO_LCD_PCI, "LCD control")) { 38 pr_err("%s: can't request H3XXX_EGPIO_LCD_PCI\n", __func__); 39 goto err2; 40 } 41 if (gpio_request(H3600_EGPIO_LCD_5V_ON, "LCD 5v")) { 42 pr_err("%s: can't request H3XXX_EGPIO_LCD_5V_ON\n", __func__); 43 goto err3; 44 } 45 if (gpio_request(H3600_EGPIO_LVDD_ON, "LCD 9v/-6.5v")) { 46 pr_err("%s: can't request H3600_EGPIO_LVDD_ON\n", __func__); 47 goto err4; 48 } 49 50 gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable); 51 gpio_direction_output(H3600_EGPIO_LCD_PCI, enable); 52 gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable); 53 gpio_direction_output(H3600_EGPIO_LVDD_ON, enable); 54 55 gpio_free(H3600_EGPIO_LVDD_ON); 56 err4: gpio_free(H3600_EGPIO_LCD_5V_ON); 57 err3: gpio_free(H3600_EGPIO_LCD_PCI); 58 err2: gpio_free(H3XXX_EGPIO_LCD_ON); 59 err1: return; 60 } 61 62 static const struct sa1100fb_rgb h3600_rgb_16 = { 63 .red = { .offset = 12, .length = 4, }, 64 .green = { .offset = 7, .length = 4, }, 65 .blue = { .offset = 1, .length = 4, }, 66 .transp = { .offset = 0, .length = 0, }, 67 }; 68 69 static struct sa1100fb_mach_info h3600_lcd_info = { 70 .pixclock = 174757, .bpp = 16, 71 .xres = 320, .yres = 240, 72 73 .hsync_len = 3, .vsync_len = 3, 74 .left_margin = 12, .upper_margin = 10, 75 .right_margin = 17, .lower_margin = 1, 76 77 .cmap_static = 1, 78 79 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act, 80 .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2), 81 82 .rgb[RGB_16] = &h3600_rgb_16, 83 84 .lcd_power = h3600_lcd_power, 85 }; 86 87 88 static void __init h3600_map_io(void) 89 { 90 h3xxx_map_io(); 91 } 92 93 /* 94 * This turns the IRDA power on or off on the Compaq H3600 95 */ 96 static int h3600_irda_set_power(struct device *dev, unsigned int state) 97 { 98 gpio_set_value(H3600_EGPIO_IR_ON, state); 99 return 0; 100 } 101 102 static void h3600_irda_set_speed(struct device *dev, unsigned int speed) 103 { 104 gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000)); 105 } 106 107 static int h3600_irda_startup(struct device *dev) 108 { 109 int err = gpio_request(H3600_EGPIO_IR_ON, "IrDA power"); 110 if (err) 111 goto err1; 112 err = gpio_direction_output(H3600_EGPIO_IR_ON, 0); 113 if (err) 114 goto err2; 115 err = gpio_request(H3600_EGPIO_IR_FSEL, "IrDA fsel"); 116 if (err) 117 goto err2; 118 err = gpio_direction_output(H3600_EGPIO_IR_FSEL, 0); 119 if (err) 120 goto err3; 121 return 0; 122 123 err3: gpio_free(H3600_EGPIO_IR_FSEL); 124 err2: gpio_free(H3600_EGPIO_IR_ON); 125 err1: return err; 126 } 127 128 static void h3600_irda_shutdown(struct device *dev) 129 { 130 gpio_free(H3600_EGPIO_IR_ON); 131 gpio_free(H3600_EGPIO_IR_FSEL); 132 } 133 134 static struct irda_platform_data h3600_irda_data = { 135 .set_power = h3600_irda_set_power, 136 .set_speed = h3600_irda_set_speed, 137 .startup = h3600_irda_startup, 138 .shutdown = h3600_irda_shutdown, 139 }; 140 141 static struct gpio_default_state h3600_default_gpio[] = { 142 { H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" }, 143 { H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" }, 144 { H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" }, 145 }; 146 147 static void __init h3600_mach_init(void) 148 { 149 h3xxx_init_gpio(h3600_default_gpio, ARRAY_SIZE(h3600_default_gpio)); 150 h3xxx_mach_init(); 151 152 sa11x0_register_lcd(&h3600_lcd_info); 153 sa11x0_register_irda(&h3600_irda_data); 154 } 155 156 MACHINE_START(H3600, "Compaq iPAQ H3600") 157 .atag_offset = 0x100, 158 .map_io = h3600_map_io, 159 .nr_irqs = SA1100_NR_IRQS, 160 .init_irq = sa1100_init_irq, 161 .init_time = sa1100_timer_init, 162 .init_machine = h3600_mach_init, 163 .init_late = sa11x0_init_late, 164 .restart = sa11x0_restart, 165 MACHINE_END 166 167