diff options
author | Paolo Bonzini <pbonzini@redhat.com> | 2013-03-01 13:59:19 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-04-08 18:13:12 +0200 |
commit | 49ab747f668f421138d5b40d83fa279c4c5e278d (patch) | |
tree | 943225a04eac885aed038731adf058f2250a2f40 /hw/input/stellaris_input.c | |
parent | ce3b494cb504f96992f2d37ebc8f56deed202b06 (diff) |
hw: move target-independent files to subdirectories
This patch tackles all files that are compiled once, moving
them to subdirectories of hw/.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/input/stellaris_input.c')
-rw-r--r-- | hw/input/stellaris_input.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/hw/input/stellaris_input.c b/hw/input/stellaris_input.c new file mode 100644 index 0000000000..f83fc3f288 --- /dev/null +++ b/hw/input/stellaris_input.c @@ -0,0 +1,89 @@ +/* + * Gamepad style buttons connected to IRQ/GPIO lines + * + * Copyright (c) 2007 CodeSourcery. + * Written by Paul Brook + * + * This code is licensed under the GPL. + */ +#include "hw/hw.h" +#include "hw/arm/devices.h" +#include "ui/console.h" + +typedef struct { + qemu_irq irq; + int keycode; + uint8_t pressed; +} gamepad_button; + +typedef struct { + gamepad_button *buttons; + int num_buttons; + int extension; +} gamepad_state; + +static void stellaris_gamepad_put_key(void * opaque, int keycode) +{ + gamepad_state *s = (gamepad_state *)opaque; + int i; + int down; + + if (keycode == 0xe0 && !s->extension) { + s->extension = 0x80; + return; + } + + down = (keycode & 0x80) == 0; + keycode = (keycode & 0x7f) | s->extension; + + for (i = 0; i < s->num_buttons; i++) { + if (s->buttons[i].keycode == keycode + && s->buttons[i].pressed != down) { + s->buttons[i].pressed = down; + qemu_set_irq(s->buttons[i].irq, down); + } + } + + s->extension = 0; +} + +static const VMStateDescription vmstate_stellaris_button = { + .name = "stellaris_button", + .version_id = 0, + .minimum_version_id = 0, + .minimum_version_id_old = 0, + .fields = (VMStateField[]) { + VMSTATE_UINT8(pressed, gamepad_button), + VMSTATE_END_OF_LIST() + } +}; + +static const VMStateDescription vmstate_stellaris_gamepad = { + .name = "stellaris_gamepad", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField[]) { + VMSTATE_INT32(extension, gamepad_state), + VMSTATE_STRUCT_VARRAY_INT32(buttons, gamepad_state, num_buttons, 0, + vmstate_stellaris_button, gamepad_button), + VMSTATE_END_OF_LIST() + } +}; + +/* Returns an array 5 ouput slots. */ +void stellaris_gamepad_init(int n, qemu_irq *irq, const int *keycode) +{ + gamepad_state *s; + int i; + + s = (gamepad_state *)g_malloc0(sizeof (gamepad_state)); + s->buttons = (gamepad_button *)g_malloc0(n * sizeof (gamepad_button)); + for (i = 0; i < n; i++) { + s->buttons[i].irq = irq[i]; + s->buttons[i].keycode = keycode[i]; + } + s->num_buttons = n; + qemu_add_kbd_event_handler(stellaris_gamepad_put_key, s); + vmstate_register(NULL, -1, &vmstate_stellaris_gamepad, s); +} |