diff options
Diffstat (limited to 'kernel/arch/arm/mach-sa1100/h3600.c')
| -rw-r--r-- | kernel/arch/arm/mach-sa1100/h3600.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-sa1100/h3600.c b/kernel/arch/arm/mach-sa1100/h3600.c new file mode 100644 index 000000000..118338efd --- /dev/null +++ b/kernel/arch/arm/mach-sa1100/h3600.c @@ -0,0 +1,151 @@ +/* + * Support for Compaq iPAQ H3600 handheld computer + * + * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks) + * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/gpio.h> + +#include <video/sa1100fb.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <linux/platform_data/irda-sa11x0.h> + +#include <mach/h3xxx.h> +#include <mach/irqs.h> + +#include "generic.h" + +/* + * helper for sa1100fb + */ +static struct gpio h3600_lcd_gpio[] = { + { H3XXX_EGPIO_LCD_ON, GPIOF_OUT_INIT_LOW, "LCD power" }, + { H3600_EGPIO_LCD_PCI, GPIOF_OUT_INIT_LOW, "LCD control" }, + { H3600_EGPIO_LCD_5V_ON, GPIOF_OUT_INIT_LOW, "LCD 5v" }, + { H3600_EGPIO_LVDD_ON, GPIOF_OUT_INIT_LOW, "LCD 9v/-6.5v" }, +}; + +static bool h3600_lcd_request(void) +{ + static bool h3600_lcd_ok; + int rc; + + if (h3600_lcd_ok) + return true; + + rc = gpio_request_array(h3600_lcd_gpio, ARRAY_SIZE(h3600_lcd_gpio)); + if (rc) + pr_err("%s: can't request GPIOs\n", __func__); + else + h3600_lcd_ok = true; + + return h3600_lcd_ok; +} + +static void h3600_lcd_power(int enable) +{ + if (!h3600_lcd_request()) + return; + + gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable); + gpio_direction_output(H3600_EGPIO_LCD_PCI, enable); + gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable); + gpio_direction_output(H3600_EGPIO_LVDD_ON, enable); +} + +static const struct sa1100fb_rgb h3600_rgb_16 = { + .red = { .offset = 12, .length = 4, }, + .green = { .offset = 7, .length = 4, }, + .blue = { .offset = 1, .length = 4, }, + .transp = { .offset = 0, .length = 0, }, +}; + +static struct sa1100fb_mach_info h3600_lcd_info = { + .pixclock = 174757, .bpp = 16, + .xres = 320, .yres = 240, + + .hsync_len = 3, .vsync_len = 3, + .left_margin = 12, .upper_margin = 10, + .right_margin = 17, .lower_margin = 1, + + .cmap_static = 1, + + .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act, + .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2), + + .rgb[RGB_16] = &h3600_rgb_16, + + .lcd_power = h3600_lcd_power, +}; + + +static void __init h3600_map_io(void) +{ + h3xxx_map_io(); +} + +/* + * This turns the IRDA power on or off on the Compaq H3600 + */ +static struct gpio h3600_irda_gpio[] = { + { H3600_EGPIO_IR_ON, GPIOF_OUT_INIT_LOW, "IrDA power" }, + { H3600_EGPIO_IR_FSEL, GPIOF_OUT_INIT_LOW, "IrDA fsel" }, +}; + +static int h3600_irda_set_power(struct device *dev, unsigned int state) +{ + gpio_set_value(H3600_EGPIO_IR_ON, state); + return 0; +} + +static void h3600_irda_set_speed(struct device *dev, unsigned int speed) +{ + gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000)); +} + +static int h3600_irda_startup(struct device *dev) +{ + return gpio_request_array(h3600_irda_gpio, sizeof(h3600_irda_gpio)); +} + +static void h3600_irda_shutdown(struct device *dev) +{ + return gpio_free_array(h3600_irda_gpio, sizeof(h3600_irda_gpio)); +} + +static struct irda_platform_data h3600_irda_data = { + .set_power = h3600_irda_set_power, + .set_speed = h3600_irda_set_speed, + .startup = h3600_irda_startup, + .shutdown = h3600_irda_shutdown, +}; + +static void __init h3600_mach_init(void) +{ + h3xxx_mach_init(); + + sa11x0_register_lcd(&h3600_lcd_info); + sa11x0_register_irda(&h3600_irda_data); +} + +MACHINE_START(H3600, "Compaq iPAQ H3600") + .atag_offset = 0x100, + .map_io = h3600_map_io, + .nr_irqs = SA1100_NR_IRQS, + .init_irq = sa1100_init_irq, + .init_time = sa1100_timer_init, + .init_machine = h3600_mach_init, + .init_late = sa11x0_init_late, + .restart = sa11x0_restart, +MACHINE_END + |