[qemu.git] / hw / input / pxa2xx_keypad.c

/*
 * Intel PXA27X Keypad Controller emulation.
 *
 * Copyright (c) 2007 MontaVista Software, Inc
 * Written by Armin Kuster <[email protected]>
 *              or  <[email protected]>
 *
 * This code is licensed under the GPLv2.
 *
 * Contributions after 2012-01-13 are licensed under the terms of the
 * GNU GPL, version 2 or (at your option) any later version.
 */

#include "qemu/osdep.h"
#include "hw/hw.h"
#include "hw/arm/pxa.h"
#include "ui/console.h"

/*
 * Keypad
 */
#define KPC         0x00    /* Keypad Interface Control register */
#define KPDK        0x08    /* Keypad Interface Direct Key register */
#define KPREC       0x10    /* Keypad Interface Rotary Encoder register */
#define KPMK        0x18    /* Keypad Interface Matrix Key register */
#define KPAS        0x20    /* Keypad Interface Automatic Scan register */
#define KPASMKP0    0x28    /* Keypad Interface Automatic Scan Multiple
                                Key Presser register 0 */
#define KPASMKP1    0x30    /* Keypad Interface Automatic Scan Multiple
                                Key Presser register 1 */
#define KPASMKP2    0x38    /* Keypad Interface Automatic Scan Multiple
                                Key Presser register 2 */
#define KPASMKP3    0x40    /* Keypad Interface Automatic Scan Multiple
                                Key Presser register 3 */
#define KPKDI       0x48    /* Keypad Interface Key Debounce Interval
                                register */

/* Keypad defines */
#define KPC_AS          (0x1 << 30)  /* Automatic Scan bit */
#define KPC_ASACT       (0x1 << 29)  /* Automatic Scan on Activity */
#define KPC_MI          (0x1 << 22)  /* Matrix interrupt bit */
#define KPC_IMKP        (0x1 << 21)  /* Ignore Multiple Key Press */
#define KPC_MS7         (0x1 << 20)  /* Matrix scan line 7 */
#define KPC_MS6         (0x1 << 19)  /* Matrix scan line 6 */
#define KPC_MS5         (0x1 << 18)  /* Matrix scan line 5 */
#define KPC_MS4         (0x1 << 17)  /* Matrix scan line 4 */
#define KPC_MS3         (0x1 << 16)  /* Matrix scan line 3 */
#define KPC_MS2         (0x1 << 15)  /* Matrix scan line 2 */
#define KPC_MS1         (0x1 << 14)  /* Matrix scan line 1 */
#define KPC_MS0         (0x1 << 13)  /* Matrix scan line 0 */
#define KPC_ME          (0x1 << 12)  /* Matrix Keypad Enable */
#define KPC_MIE         (0x1 << 11)  /* Matrix Interrupt Enable */
#define KPC_DK_DEB_SEL  (0x1 <<  9)  /* Direct Keypad Debounce Select */
#define KPC_DI          (0x1 <<  5)  /* Direct key interrupt bit */
#define KPC_RE_ZERO_DEB (0x1 <<  4)  /* Rotary Encoder Zero Debounce */
#define KPC_REE1        (0x1 <<  3)  /* Rotary Encoder1 Enable */
#define KPC_REE0        (0x1 <<  2)  /* Rotary Encoder0 Enable */
#define KPC_DE          (0x1 <<  1)  /* Direct Keypad Enable */
#define KPC_DIE         (0x1 <<  0)  /* Direct Keypad interrupt Enable */

#define KPDK_DKP        (0x1 << 31)
#define KPDK_DK7        (0x1 <<  7)
#define KPDK_DK6        (0x1 <<  6)
#define KPDK_DK5        (0x1 <<  5)
#define KPDK_DK4        (0x1 <<  4)
#define KPDK_DK3        (0x1 <<  3)
#define KPDK_DK2        (0x1 <<  2)
#define KPDK_DK1        (0x1 <<  1)
#define KPDK_DK0        (0x1 <<  0)

#define KPREC_OF1       (0x1 << 31)
#define KPREC_UF1       (0x1 << 30)
#define KPREC_OF0       (0x1 << 15)
#define KPREC_UF0       (0x1 << 14)

#define KPMK_MKP        (0x1 << 31)
#define KPAS_SO         (0x1 << 31)
#define KPASMKPx_SO     (0x1 << 31)


#define KPASMKPx_MKC(row, col)  (1 << (row + 16 * (col % 2)))

#define PXAKBD_MAXROW   8
#define PXAKBD_MAXCOL   8

struct PXA2xxKeyPadState {
    MemoryRegion iomem;
    qemu_irq    irq;
    const struct  keymap *map;
    int         pressed_cnt;
    int         alt_code;

    uint32_t    kpc;
    uint32_t    kpdk;
    uint32_t    kprec;
    uint32_t    kpmk;
    uint32_t    kpas;
    uint32_t    kpasmkp[4];
    uint32_t    kpkdi;
};

static void pxa27x_keypad_find_pressed_key(PXA2xxKeyPadState *kp, int *row, int *col)
{
    int i;
    for (i = 0; i < 4; i++)
    {
        *col = i * 2;
        for (*row = 0; *row < 8; (*row)++) {
            if (kp->kpasmkp[i] & (1 << *row))
                return;
        }
        *col = i * 2 + 1;
        for (*row = 0; *row < 8; (*row)++) {
            if (kp->kpasmkp[i] & (1 << (*row + 16)))
                return;
        }
    }
}

static void pxa27x_keyboard_event (PXA2xxKeyPadState *kp, int keycode)
{
    int row, col, rel, assert_irq = 0;
    uint32_t val;

    if (keycode == 0xe0) {
        kp->alt_code = 1;
        return;
    }

    if(!(kp->kpc & KPC_ME)) /* skip if not enabled */
        return;

    rel = (keycode & 0x80) ? 1 : 0; /* key release from qemu */
    keycode &= ~0x80; /* strip qemu key release bit */
    if (kp->alt_code) {
        keycode |= 0x80;
        kp->alt_code = 0;
    }

    row = kp->map[keycode].row;
    col = kp->map[keycode].column;
    if (row == -1 || col == -1) {
        return;
    }

    val = KPASMKPx_MKC(row, col);
    if (rel) {
        if (kp->kpasmkp[col / 2] & val) {
            kp->kpasmkp[col / 2] &= ~val;
            kp->pressed_cnt--;
            assert_irq = 1;
        }
    } else {
        if (!(kp->kpasmkp[col / 2] & val)) {
            kp->kpasmkp[col / 2] |= val;
            kp->pressed_cnt++;
            assert_irq = 1;
        }
    }
    kp->kpas = ((kp->pressed_cnt & 0x1f) << 26) | (0xf << 4) | 0xf;
    if (kp->pressed_cnt == 1) {
        kp->kpas &= ~((0xf << 4) | 0xf);
        if (rel) {
            pxa27x_keypad_find_pressed_key(kp, &row, &col);
        }
        kp->kpas |= ((row & 0xf) << 4) | (col & 0xf);
    }

    if (!(kp->kpc & (KPC_AS | KPC_ASACT)))
        assert_irq = 0;

    if (assert_irq && (kp->kpc & KPC_MIE)) {
        kp->kpc |= KPC_MI;
        qemu_irq_raise(kp->irq);
    }
}

static uint64_t pxa2xx_keypad_read(void *opaque, hwaddr offset,
                                   unsigned size)
{
    PXA2xxKeyPadState *s = (PXA2xxKeyPadState *) opaque;
    uint32_t tmp;

    switch (offset) {
    case KPC:
        tmp = s->kpc;
        if(tmp & KPC_MI)
            s->kpc &= ~(KPC_MI);
        if(tmp & KPC_DI)
            s->kpc &= ~(KPC_DI);
        qemu_irq_lower(s->irq);
        return tmp;
        break;
    case KPDK:
        return s->kpdk;
        break;
    case KPREC:
        tmp = s->kprec;
        if(tmp & KPREC_OF1)
            s->kprec &= ~(KPREC_OF1);
        if(tmp & KPREC_UF1)
            s->kprec &= ~(KPREC_UF1);
        if(tmp & KPREC_OF0)
            s->kprec &= ~(KPREC_OF0);
        if(tmp & KPREC_UF0)
            s->kprec &= ~(KPREC_UF0);
        return tmp;
        break;
    case KPMK:
        tmp = s->kpmk;
        if(tmp & KPMK_MKP)
            s->kpmk &= ~(KPMK_MKP);
        return tmp;
        break;
    case KPAS:
        return s->kpas;
        break;
    case KPASMKP0:
        return s->kpasmkp[0];
        break;
    case KPASMKP1:
        return s->kpasmkp[1];
        break;
    case KPASMKP2:
        return s->kpasmkp[2];
        break;
    case KPASMKP3:
        return s->kpasmkp[3];
        break;
    case KPKDI:
        return s->kpkdi;
        break;
    default:
        hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
    }

    return 0;
}

static void pxa2xx_keypad_write(void *opaque, hwaddr offset,
                                uint64_t value, unsigned size)
{
    PXA2xxKeyPadState *s = (PXA2xxKeyPadState *) opaque;

    switch (offset) {
    case KPC:
        s->kpc = value;
        if (s->kpc & KPC_AS) {
            s->kpc &= ~(KPC_AS);
        }
        break;
    case KPDK:
        s->kpdk = value;
        break;
    case KPREC:
        s->kprec = value;
        break;
    case KPMK:
        s->kpmk = value;
        break;
    case KPAS:
        s->kpas = value;
        break;
    case KPASMKP0:
        s->kpasmkp[0] = value;
        break;
    case KPASMKP1:
        s->kpasmkp[1] = value;
        break;
    case KPASMKP2:
        s->kpasmkp[2] = value;
        break;
    case KPASMKP3:
        s->kpasmkp[3] = value;
        break;
    case KPKDI:
        s->kpkdi = value;
        break;

    default:
        hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
    }
}

static const MemoryRegionOps pxa2xx_keypad_ops = {
    .read = pxa2xx_keypad_read,
    .write = pxa2xx_keypad_write,
    .endianness = DEVICE_NATIVE_ENDIAN,
};

static const VMStateDescription vmstate_pxa2xx_keypad = {
    .name = "pxa2xx_keypad",
    .version_id = 0,
    .minimum_version_id = 0,
    .fields = (VMStateField[]) {
        VMSTATE_UINT32(kpc, PXA2xxKeyPadState),
        VMSTATE_UINT32(kpdk, PXA2xxKeyPadState),
        VMSTATE_UINT32(kprec, PXA2xxKeyPadState),
        VMSTATE_UINT32(kpmk, PXA2xxKeyPadState),
        VMSTATE_UINT32(kpas, PXA2xxKeyPadState),
        VMSTATE_UINT32_ARRAY(kpasmkp, PXA2xxKeyPadState, 4),
        VMSTATE_UINT32(kpkdi, PXA2xxKeyPadState),
        VMSTATE_END_OF_LIST()
    }
};

PXA2xxKeyPadState *pxa27x_keypad_init(MemoryRegion *sysmem,
                                      hwaddr base,
                                      qemu_irq irq)
{
    PXA2xxKeyPadState *s;

    s = (PXA2xxKeyPadState *) g_malloc0(sizeof(PXA2xxKeyPadState));
    s->irq = irq;

    memory_region_init_io(&s->iomem, NULL, &pxa2xx_keypad_ops, s,
                          "pxa2xx-keypad", 0x00100000);
    memory_region_add_subregion(sysmem, base, &s->iomem);

    vmstate_register(NULL, 0, &vmstate_pxa2xx_keypad, s);

    return s;
}

void pxa27x_register_keypad(PXA2xxKeyPadState *kp,
                            const struct keymap *map, int size)
{
    if(!map || size < 0x80) {
        fprintf(stderr, "%s - No PXA keypad map defined\n", __FUNCTION__);
        exit(-1);
    }

    kp->map = map;
    qemu_add_kbd_event_handler((QEMUPutKBDEvent *) pxa27x_keyboard_event, kp);
}
Commit	Line	Data
31b87f2e AZ	1	/*
	2	* Intel PXA27X Keypad Controller emulation.
	3	*
	4	* Copyright (c) 2007 MontaVista Software, Inc
	5	* Written by Armin Kuster <[email protected]>
	6	* or <[email protected]>
	7	*
	8	* This code is licensed under the GPLv2.
6b620ca3 PB	9	*
	10	* Contributions after 2012-01-13 are licensed under the terms of the
	11	* GNU GPL, version 2 or (at your option) any later version.
31b87f2e AZ	12	*/
31b87f2e AZ	13
8ef94f0b	14	#include "qemu/osdep.h"
83c9f4ca	15	#include "hw/hw.h"
0d09e41a	16	#include "hw/arm/pxa.h"
28ecbaee	17	#include "ui/console.h"
31b87f2e AZ	18
	19	/*
	20	* Keypad
	21	*/
	22	#define KPC 0x00 /* Keypad Interface Control register */
	23	#define KPDK 0x08 /* Keypad Interface Direct Key register */
	24	#define KPREC 0x10 /* Keypad Interface Rotary Encoder register */
	25	#define KPMK 0x18 /* Keypad Interface Matrix Key register */
	26	#define KPAS 0x20 /* Keypad Interface Automatic Scan register */
	27	#define KPASMKP0 0x28 /* Keypad Interface Automatic Scan Multiple
	28	Key Presser register 0 */
	29	#define KPASMKP1 0x30 /* Keypad Interface Automatic Scan Multiple
	30	Key Presser register 1 */
	31	#define KPASMKP2 0x38 /* Keypad Interface Automatic Scan Multiple
	32	Key Presser register 2 */
	33	#define KPASMKP3 0x40 /* Keypad Interface Automatic Scan Multiple
	34	Key Presser register 3 */
	35	#define KPKDI 0x48 /* Keypad Interface Key Debounce Interval
	36	register */
	37
	38	/* Keypad defines */
	39	#define KPC_AS (0x1 << 30) /* Automatic Scan bit */
	40	#define KPC_ASACT (0x1 << 29) /* Automatic Scan on Activity */
	41	#define KPC_MI (0x1 << 22) /* Matrix interrupt bit */
	42	#define KPC_IMKP (0x1 << 21) /* Ignore Multiple Key Press */
	43	#define KPC_MS7 (0x1 << 20) /* Matrix scan line 7 */
	44	#define KPC_MS6 (0x1 << 19) /* Matrix scan line 6 */
	45	#define KPC_MS5 (0x1 << 18) /* Matrix scan line 5 */
	46	#define KPC_MS4 (0x1 << 17) /* Matrix scan line 4 */
	47	#define KPC_MS3 (0x1 << 16) /* Matrix scan line 3 */
	48	#define KPC_MS2 (0x1 << 15) /* Matrix scan line 2 */
	49	#define KPC_MS1 (0x1 << 14) /* Matrix scan line 1 */
	50	#define KPC_MS0 (0x1 << 13) /* Matrix scan line 0 */
	51	#define KPC_ME (0x1 << 12) /* Matrix Keypad Enable */
	52	#define KPC_MIE (0x1 << 11) /* Matrix Interrupt Enable */
	53	#define KPC_DK_DEB_SEL (0x1 << 9) /* Direct Keypad Debounce Select */
	54	#define KPC_DI (0x1 << 5) /* Direct key interrupt bit */
	55	#define KPC_RE_ZERO_DEB (0x1 << 4) /* Rotary Encoder Zero Debounce */
	56	#define KPC_REE1 (0x1 << 3) /* Rotary Encoder1 Enable */
	57	#define KPC_REE0 (0x1 << 2) /* Rotary Encoder0 Enable */
	58	#define KPC_DE (0x1 << 1) /* Direct Keypad Enable */
	59	#define KPC_DIE (0x1 << 0) /* Direct Keypad interrupt Enable */
	60
	61	#define KPDK_DKP (0x1 << 31)
	62	#define KPDK_DK7 (0x1 << 7)
	63	#define KPDK_DK6 (0x1 << 6)
	64	#define KPDK_DK5 (0x1 << 5)
	65	#define KPDK_DK4 (0x1 << 4)
	66	#define KPDK_DK3 (0x1 << 3)
	67	#define KPDK_DK2 (0x1 << 2)
	68	#define KPDK_DK1 (0x1 << 1)
	69	#define KPDK_DK0 (0x1 << 0)
	70
	71	#define KPREC_OF1 (0x1 << 31)
	72	#define KPREC_UF1 (0x1 << 30)
	73	#define KPREC_OF0 (0x1 << 15)
	74	#define KPREC_UF0 (0x1 << 14)
	75
	76	#define KPMK_MKP (0x1 << 31)
	77	#define KPAS_SO (0x1 << 31)
	78	#define KPASMKPx_SO (0x1 << 31)
	79
	80
	81	#define KPASMKPx_MKC(row, col) (1 << (row + 16 * (col % 2)))
82
83	#define PXAKBD_MAXROW 8
84	#define PXAKBD_MAXCOL 8
85
bc24a225	86	struct PXA2xxKeyPadState {
6cd816b8	87	MemoryRegion iomem;
31b87f2e	88	qemu_irq irq;
52975c31	89	const struct keymap *map;
b976b4c0	90	int pressed_cnt;
582798b5	91	int alt_code;
31b87f2e AZ	92
	93	uint32_t kpc;
	94	uint32_t kpdk;
	95	uint32_t kprec;
	96	uint32_t kpmk;
	97	uint32_t kpas;
b976b4c0	98	uint32_t kpasmkp[4];
31b87f2e AZ	99	uint32_t kpkdi;
	100	};
	101
b976b4c0 VK	102	static void pxa27x_keypad_find_pressed_key(PXA2xxKeyPadState kp, int row, int *col)
	103	{
	104	int i;
	105	for (i = 0; i < 4; i++)
	106	{
	107	col = i 2;
	108	for (row = 0; row < 8; (*row)++) {
	109	if (kp->kpasmkp[i] & (1 << *row))
	110	return;
	111	}
	112	col = i 2 + 1;
	113	for (row = 0; row < 8; (*row)++) {
	114	if (kp->kpasmkp[i] & (1 << (*row + 16)))
	115	return;
	116	}
	117	}
	118	}
	119
bc24a225	120	static void pxa27x_keyboard_event (PXA2xxKeyPadState *kp, int keycode)
31b87f2e	121	{
b976b4c0 VK	122	int row, col, rel, assert_irq = 0;
b976b4c0 VK	123	uint32_t val;
31b87f2e	124
582798b5 VK	125	if (keycode == 0xe0) {
	126	kp->alt_code = 1;
	127	return;
	128	}
	129
31b87f2e AZ	130	if(!(kp->kpc & KPC_ME)) /* skip if not enabled */
	131	return;
	132
753a97c6 VK	133	rel = (keycode & 0x80) ? 1 : 0; /* key release from qemu */
	134	keycode &= ~0x80; /* strip qemu key release bit */
	135	if (kp->alt_code) {
	136	keycode \|= 0x80;
	137	kp->alt_code = 0;
	138	}
b976b4c0	139
753a97c6 VK	140	row = kp->map[keycode].row;
	141	col = kp->map[keycode].column;
	142	if (row == -1 \|\| col == -1) {
	143	return;
	144	}
b976b4c0	145
753a97c6 VK	146	val = KPASMKPx_MKC(row, col);
	147	if (rel) {
	148	if (kp->kpasmkp[col / 2] & val) {
	149	kp->kpasmkp[col / 2] &= ~val;
	150	kp->pressed_cnt--;
	151	assert_irq = 1;
b976b4c0	152	}
753a97c6 VK	153	} else {
	154	if (!(kp->kpasmkp[col / 2] & val)) {
	155	kp->kpasmkp[col / 2] \|= val;
	156	kp->pressed_cnt++;
	157	assert_irq = 1;
b976b4c0	158	}
31b87f2e	159	}
753a97c6 VK	160	kp->kpas = ((kp->pressed_cnt & 0x1f) << 26) \| (0xf << 4) \| 0xf;
	161	if (kp->pressed_cnt == 1) {
	162	kp->kpas &= ~((0xf << 4) \| 0xf);
	163	if (rel) {
	164	pxa27x_keypad_find_pressed_key(kp, &row, &col);
	165	}
	166	kp->kpas \|= ((row & 0xf) << 4) \| (col & 0xf);
	167	}
	168
8c4ec5c0	169	if (!(kp->kpc & (KPC_AS \| KPC_ASACT)))
753a97c6	170	assert_irq = 0;
31b87f2e	171
b976b4c0	172	if (assert_irq && (kp->kpc & KPC_MIE)) {
31b87f2e AZ	173	kp->kpc \|= KPC_MI;
	174	qemu_irq_raise(kp->irq);
	175	}
31b87f2e AZ	176	}
31b87f2e AZ	177
a8170e5e	178	static uint64_t pxa2xx_keypad_read(void *opaque, hwaddr offset,
6cd816b8	179	unsigned size)
31b87f2e	180	{
bc24a225	181	PXA2xxKeyPadState s = (PXA2xxKeyPadState ) opaque;
31b87f2e	182	uint32_t tmp;
31b87f2e AZ	183
	184	switch (offset) {
	185	case KPC:
	186	tmp = s->kpc;
	187	if(tmp & KPC_MI)
	188	s->kpc &= ~(KPC_MI);
	189	if(tmp & KPC_DI)
	190	s->kpc &= ~(KPC_DI);
	191	qemu_irq_lower(s->irq);
	192	return tmp;
	193	break;
	194	case KPDK:
	195	return s->kpdk;
	196	break;
	197	case KPREC:
	198	tmp = s->kprec;
	199	if(tmp & KPREC_OF1)
	200	s->kprec &= ~(KPREC_OF1);
	201	if(tmp & KPREC_UF1)
	202	s->kprec &= ~(KPREC_UF1);
	203	if(tmp & KPREC_OF0)
	204	s->kprec &= ~(KPREC_OF0);
	205	if(tmp & KPREC_UF0)
	206	s->kprec &= ~(KPREC_UF0);
	207	return tmp;
	208	break;
	209	case KPMK:
	210	tmp = s->kpmk;
	211	if(tmp & KPMK_MKP)
	212	s->kpmk &= ~(KPMK_MKP);
	213	return tmp;
	214	break;
	215	case KPAS:
	216	return s->kpas;
	217	break;
	218	case KPASMKP0:
b976b4c0	219	return s->kpasmkp[0];
31b87f2e AZ	220	break;
31b87f2e AZ	221	case KPASMKP1:
b976b4c0	222	return s->kpasmkp[1];
31b87f2e AZ	223	break;
31b87f2e AZ	224	case KPASMKP2:
b976b4c0	225	return s->kpasmkp[2];
31b87f2e AZ	226	break;
31b87f2e AZ	227	case KPASMKP3:
b976b4c0	228	return s->kpasmkp[3];
31b87f2e AZ	229	break;
	230	case KPKDI:
	231	return s->kpkdi;
	232	break;
	233	default:
2ac71179	234	hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
31b87f2e AZ	235	}
	236
	237	return 0;
	238	}
	239
a8170e5e	240	static void pxa2xx_keypad_write(void *opaque, hwaddr offset,
6cd816b8	241	uint64_t value, unsigned size)
31b87f2e	242	{
bc24a225	243	PXA2xxKeyPadState s = (PXA2xxKeyPadState ) opaque;
31b87f2e AZ	244
	245	switch (offset) {
	246	case KPC:
	247	s->kpc = value;
753a97c6 VK	248	if (s->kpc & KPC_AS) {
	249	s->kpc &= ~(KPC_AS);
	250	}
31b87f2e AZ	251	break;
	252	case KPDK:
	253	s->kpdk = value;
	254	break;
	255	case KPREC:
	256	s->kprec = value;
	257	break;
	258	case KPMK:
	259	s->kpmk = value;
	260	break;
	261	case KPAS:
	262	s->kpas = value;
	263	break;
	264	case KPASMKP0:
b976b4c0	265	s->kpasmkp[0] = value;
31b87f2e AZ	266	break;
31b87f2e AZ	267	case KPASMKP1:
b976b4c0	268	s->kpasmkp[1] = value;
31b87f2e AZ	269	break;
31b87f2e AZ	270	case KPASMKP2:
b976b4c0	271	s->kpasmkp[2] = value;
31b87f2e AZ	272	break;
31b87f2e AZ	273	case KPASMKP3:
b976b4c0	274	s->kpasmkp[3] = value;
31b87f2e AZ	275	break;
	276	case KPKDI:
	277	s->kpkdi = value;
	278	break;
	279
	280	default:
2ac71179	281	hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
31b87f2e AZ	282	}
	283	}
	284
6cd816b8 BC	285	static const MemoryRegionOps pxa2xx_keypad_ops = {
	286	.read = pxa2xx_keypad_read,
	287	.write = pxa2xx_keypad_write,
	288	.endianness = DEVICE_NATIVE_ENDIAN,
31b87f2e AZ	289	};
31b87f2e AZ	290
25f5a1b7 JQ	291	static const VMStateDescription vmstate_pxa2xx_keypad = {
	292	.name = "pxa2xx_keypad",
	293	.version_id = 0,
	294	.minimum_version_id = 0,
8f1e884b	295	.fields = (VMStateField[]) {
25f5a1b7 JQ	296	VMSTATE_UINT32(kpc, PXA2xxKeyPadState),
	297	VMSTATE_UINT32(kpdk, PXA2xxKeyPadState),
	298	VMSTATE_UINT32(kprec, PXA2xxKeyPadState),
	299	VMSTATE_UINT32(kpmk, PXA2xxKeyPadState),
	300	VMSTATE_UINT32(kpas, PXA2xxKeyPadState),
	301	VMSTATE_UINT32_ARRAY(kpasmkp, PXA2xxKeyPadState, 4),
	302	VMSTATE_UINT32(kpkdi, PXA2xxKeyPadState),
	303	VMSTATE_END_OF_LIST()
	304	}
	305	};
31b87f2e	306
6cd816b8	307	PXA2xxKeyPadState pxa27x_keypad_init(MemoryRegion sysmem,
a8170e5e	308	hwaddr base,
6cd816b8	309	qemu_irq irq)
31b87f2e	310	{
bc24a225	311	PXA2xxKeyPadState *s;
31b87f2e	312
7267c094	313	s = (PXA2xxKeyPadState *) g_malloc0(sizeof(PXA2xxKeyPadState));
31b87f2e AZ	314	s->irq = irq;
31b87f2e AZ	315
2c9b15ca	316	memory_region_init_io(&s->iomem, NULL, &pxa2xx_keypad_ops, s,
6cd816b8 BC	317	"pxa2xx-keypad", 0x00100000);
6cd816b8 BC	318	memory_region_add_subregion(sysmem, base, &s->iomem);
31b87f2e	319
25f5a1b7	320	vmstate_register(NULL, 0, &vmstate_pxa2xx_keypad, s);
31b87f2e AZ	321
	322	return s;
	323	}
	324
52975c31 SW	325	void pxa27x_register_keypad(PXA2xxKeyPadState *kp,
52975c31 SW	326	const struct keymap *map, int size)
31b87f2e	327	{
bd464c2e	328	if(!map \|\| size < 0x80) {
31b87f2e AZ	329	fprintf(stderr, "%s - No PXA keypad map defined\n", __FUNCTION__);
	330	exit(-1);
	331	}
	332
	333	kp->map = map;
	334	qemu_add_kbd_event_handler((QEMUPutKBDEvent *) pxa27x_keyboard_event, kp);
	335	}