Luminary board input support.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3689 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2007-11-18 14:36:08 +00:00
parent f090c9d4ad
commit cf0dbb2115
5 changed files with 102 additions and 7 deletions

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@ -54,7 +54,7 @@ OBJS+=block.o
OBJS+=irq.o
OBJS+=i2c.o smbus.o smbus_eeprom.o max7310.o max111x.o wm8750.o
OBJS+=ssd0303.o ssd0323.o ads7846.o
OBJS+=ssd0303.o ssd0323.o ads7846.o stellaris_input.o
OBJS+=scsi-disk.o cdrom.o
OBJS+=usb.o usb-hub.o usb-linux.o usb-hid.o usb-msd.o usb-wacom.o

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@ -16,4 +16,7 @@ uint32_t ads7846_read(void *opaque);
void ads7846_write(void *opaque, uint32_t value);
struct ads7846_state_s *ads7846_init(qemu_irq penirq);
/* stellaris_input.c */
void stellaris_gamepad_init(int n, qemu_irq *irq, const int *keycode);
#endif

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@ -65,5 +65,7 @@ static void qemu_notirq(void *opaque, int line, int level)
qemu_irq qemu_irq_invert(qemu_irq irq)
{
/* The default state for IRQs is low, so raise the output now. */
qemu_irq_raise(irq);
return qemu_allocate_irqs(qemu_notirq, irq, 1)[0];
}

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@ -16,6 +16,18 @@
#include "sysemu.h"
#include "boards.h"
#define GPIO_A 0
#define GPIO_B 1
#define GPIO_C 2
#define GPIO_D 3
#define GPIO_E 4
#define GPIO_F 5
#define GPIO_G 6
#define BP_OLED_I2C 0x01
#define BP_OLED_SSI 0x02
#define BP_GAMEPAD 0x04
typedef const struct {
const char *name;
uint32_t did0;
@ -25,7 +37,7 @@ typedef const struct {
uint32_t dc2;
uint32_t dc3;
uint32_t dc4;
enum {OLED_I2C, OLED_SSI} oled;
uint32_t peripherals;
} stellaris_board_info;
/* General purpose timer module. */
@ -991,7 +1003,7 @@ static stellaris_board_info stellaris_boards[] = {
0x01071013,
0x3f0f01ff,
0x0000001f,
OLED_I2C
BP_OLED_I2C
},
{ "LM3S6965EVB",
0x10010002,
@ -1001,7 +1013,7 @@ static stellaris_board_info stellaris_boards[] = {
0x030f5317,
0x0f0f87ff,
0x5000007f,
OLED_SSI
BP_OLED_SSI | BP_GAMEPAD
}
};
@ -1052,7 +1064,7 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
if (board->dc2 & (1 << 12)) {
i2c = i2c_init_bus();
stellaris_i2c_init(0x40020000, pic[8], i2c);
if (board->oled == OLED_I2C) {
if (board->peripherals & BP_OLED_I2C) {
ssd0303_init(ds, i2c, 0x3d);
}
}
@ -1064,15 +1076,27 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
}
}
if (board->dc2 & (1 << 4)) {
if (board->oled == OLED_SSI) {
if (board->peripherals & BP_OLED_SSI) {
void * oled;
/* FIXME: Implement chip select for OLED/MMC. */
oled = ssd0323_init(ds, &gpio_out[2][7]);
oled = ssd0323_init(ds, &gpio_out[GPIO_C][7]);
pl022_init(0x40008000, pic[7], ssd0323_xfer_ssi, oled);
} else {
pl022_init(0x40008000, pic[7], NULL, NULL);
}
}
if (board->peripherals & BP_GAMEPAD) {
qemu_irq gpad_irq[5];
static const int gpad_keycode[5] = { 0xc8, 0xd0, 0xcb, 0xcd, 0x1d };
gpad_irq[0] = qemu_irq_invert(gpio_in[GPIO_E][0]); /* up */
gpad_irq[1] = qemu_irq_invert(gpio_in[GPIO_E][1]); /* down */
gpad_irq[2] = qemu_irq_invert(gpio_in[GPIO_E][2]); /* left */
gpad_irq[3] = qemu_irq_invert(gpio_in[GPIO_E][3]); /* right */
gpad_irq[4] = qemu_irq_invert(gpio_in[GPIO_F][1]); /* select */
stellaris_gamepad_init(5, gpad_irq, gpad_keycode);
}
}
/* FIXME: Figure out how to generate these from stellaris_boards. */

66
hw/stellaris_input.c Normal file
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@ -0,0 +1,66 @@
/*
* Gamepad style buttons connected to IRQ/GPIO lines
*
* Copyright (c) 2007 CodeSourcery.
* Written by Paul Brook
*
* This code is licenced under the GPL.
*/
#include "hw.h"
#include "devices.h"
#include "console.h"
typedef struct {
qemu_irq irq;
int keycode;
int 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;
}
/* 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 *)qemu_mallocz(sizeof (gamepad_state));
s->buttons = (gamepad_button *)qemu_mallocz(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);
}