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/* vim:set shiftwidth=4 ts=4 et: */

/*

 * PXA255 Sharp Zaurus SL-6000 PDA platform

 *

 * Copyright (c) 2008 Dmitry Baryshkov

 *

 * Code based on spitz platform by Andrzej Zaborowski <balrog@zabor.org>

 * This code is licensed under the GNU GPL v2.

 *

 * Contributions after 2012-01-13 are licensed under the terms of the

 * GNU GPL, version 2 or (at your option) any later version.

 */

#include "hw/hw.h"

#include "hw/arm/pxa.h"

#include "hw/arm.h"

#include "hw/arm/devices.h"

#include "hw/arm/sharpsl.h"

#include "hw/pcmcia.h"

#include "block/block.h"

#include "hw/boards.h"

#include "hw/i2c/i2c.h"

#include "hw/ssi.h"

#include "sysemu/blockdev.h"

#include "hw/sysbus.h"

#include "exec/address-spaces.h"

#define TOSA_RAM    0x04000000

#define TOSA_ROM        0x00800000

#define TOSA_GPIO_USB_IN                (5)

#define TOSA_GPIO_nSD_DETECT        (9)

#define TOSA_GPIO_ON_RESET                (19)

#define TOSA_GPIO_CF_IRQ                (21)        /* CF slot0 Ready */

#define TOSA_GPIO_CF_CD                        (13)

#define TOSA_GPIO_TC6393XB_INT  (15)

#define TOSA_GPIO_JC_CF_IRQ                (36)        /* CF slot1 Ready */

#define TOSA_SCOOP_GPIO_BASE        1

#define TOSA_GPIO_IR_POWERDWN        (TOSA_SCOOP_GPIO_BASE + 2)

#define TOSA_GPIO_SD_WP                        (TOSA_SCOOP_GPIO_BASE + 3)

#define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)

#define TOSA_SCOOP_JC_GPIO_BASE                1

#define TOSA_GPIO_BT_LED                (TOSA_SCOOP_JC_GPIO_BASE + 0)

#define TOSA_GPIO_NOTE_LED                (TOSA_SCOOP_JC_GPIO_BASE + 1)

#define TOSA_GPIO_CHRG_ERR_LED                (TOSA_SCOOP_JC_GPIO_BASE + 2)

#define TOSA_GPIO_TC6393XB_L3V_ON        (TOSA_SCOOP_JC_GPIO_BASE + 5)

#define TOSA_GPIO_WLAN_LED                (TOSA_SCOOP_JC_GPIO_BASE + 7)

#define        DAC_BASE        0x4e

#define DAC_CH1                0

#define DAC_CH2                1

static void tosa_microdrive_attach(PXA2xxState *cpu)

{

    PCMCIACardState *md;

    DriveInfo *dinfo;

    dinfo = drive_get(IF_IDE, 0, 0);

    if (!dinfo || dinfo->media_cd)

        return;

    md = dscm1xxxx_init(dinfo);

    pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);

}

static void tosa_out_switch(void *opaque, int line, int level)

{

    switch (line) {

        case 0:

            fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");

            break;

        case 1:

            fprintf(stderr, "green LED %s.\n", level ? "on" : "off");

            break;

        case 2:

            fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");

            break;

        case 3:

            fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");

            break;

        default:

            fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);

            break;

    }

}

static void tosa_gpio_setup(PXA2xxState *cpu,

                DeviceState *scp0,

                DeviceState *scp1,

                TC6393xbState *tmio)

{

    qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);

    /* MMC/SD host */

    pxa2xx_mmci_handlers(cpu->mmc,

                    qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),

                    qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));

    /* Handle reset */

    qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);

    /* PCMCIA signals: card's IRQ and Card-Detect */

    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],

                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),

                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));

    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],

                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),

                        NULL);

    qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);

    qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);

    qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);

    qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);

    qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));

    /* UDC Vbus */

    qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));

}

static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)

{

    fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);

    return 0;

}

static int tosa_ssp_init(SSISlave *dev)

{

    /* Nothing to do.  */

    return 0;

}

typedef struct {

    I2CSlave i2c;

    int len;

    char buf[3];

} TosaDACState;

static int tosa_dac_send(I2CSlave *i2c, uint8_t data)

{

    TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);

    s->buf[s->len] = data;

    if (s->len ++ > 2) {

#ifdef VERBOSE

        fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);

#endif

        return 1;

    }

    if (s->len == 2) {

        fprintf(stderr, "dac: channel %d value 0x%02x\n",

                s->buf[0], s->buf[1]);

    }

    return 0;

}

static void tosa_dac_event(I2CSlave *i2c, enum i2c_event event)

{

    TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);

    s->len = 0;

    switch (event) {

    case I2C_START_SEND:

        break;

    case I2C_START_RECV:

        printf("%s: recv not supported!!!\n", __FUNCTION__);

        break;

    case I2C_FINISH:

#ifdef VERBOSE

        if (s->len < 2)

            printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);

        if (s->len > 2)

            printf("%s: message too long\n", __FUNCTION__);

#endif

        break;

    default:

        break;

    }

}

static int tosa_dac_recv(I2CSlave *s)

{

    printf("%s: recv not supported!!!\n", __FUNCTION__);

    return -1;

}

static int tosa_dac_init(I2CSlave *i2c)

{

    /* Nothing to do.  */

    return 0;

}

static void tosa_tg_init(PXA2xxState *cpu)

{

    i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);

    i2c_create_slave(bus, "tosa_dac", DAC_BASE);

    ssi_create_slave(cpu->ssp[1], "tosa-ssp");

}

static struct arm_boot_info tosa_binfo = {

    .loader_start = PXA2XX_SDRAM_BASE,

    .ram_size = 0x04000000,

};

static void tosa_init(QEMUMachineInitArgs *args)

{

    const char *cpu_model = args->cpu_model;

    const char *kernel_filename = args->kernel_filename;

    const char *kernel_cmdline = args->kernel_cmdline;

    const char *initrd_filename = args->initrd_filename;

    MemoryRegion *address_space_mem = get_system_memory();

    MemoryRegion *rom = g_new(MemoryRegion, 1);

    PXA2xxState *mpu;

    TC6393xbState *tmio;

    DeviceState *scp0, *scp1;

    if (!cpu_model)

        cpu_model = "pxa255";

    mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);

    memory_region_init_ram(rom, "tosa.rom", TOSA_ROM);

    vmstate_register_ram_global(rom);

    memory_region_set_readonly(rom, true);

    memory_region_add_subregion(address_space_mem, 0, rom);

    tmio = tc6393xb_init(address_space_mem, 0x10000000,

            qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));

    scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);

    scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);

    tosa_gpio_setup(mpu, scp0, scp1, tmio);

    tosa_microdrive_attach(mpu);

    tosa_tg_init(mpu);

    tosa_binfo.kernel_filename = kernel_filename;

    tosa_binfo.kernel_cmdline = kernel_cmdline;

    tosa_binfo.initrd_filename = initrd_filename;

    tosa_binfo.board_id = 0x208;

    arm_load_kernel(mpu->cpu, &tosa_binfo);

    sl_bootparam_write(SL_PXA_PARAM_BASE);

}

static QEMUMachine tosapda_machine = {

    .name = "tosa",

    .desc = "Tosa PDA (PXA255)",

    .init = tosa_init,

    DEFAULT_MACHINE_OPTIONS,

};

static void tosapda_machine_init(void)

{

    qemu_register_machine(&tosapda_machine);

}

machine_init(tosapda_machine_init);

static void tosa_dac_class_init(ObjectClass *klass, void *data)

{

    I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);

    k->init = tosa_dac_init;

    k->event = tosa_dac_event;

    k->recv = tosa_dac_recv;

    k->send = tosa_dac_send;

}

static const TypeInfo tosa_dac_info = {

    .name          = "tosa_dac",

    .parent        = TYPE_I2C_SLAVE,

    .instance_size = sizeof(TosaDACState),

    .class_init    = tosa_dac_class_init,

};

static void tosa_ssp_class_init(ObjectClass *klass, void *data)

{

    SSISlaveClass *k = SSI_SLAVE_CLASS(klass);

    k->init = tosa_ssp_init;

    k->transfer = tosa_ssp_tansfer;

}

static const TypeInfo tosa_ssp_info = {

    .name          = "tosa-ssp",

    .parent        = TYPE_SSI_SLAVE,

    .instance_size = sizeof(SSISlave),

    .class_init    = tosa_ssp_class_init,

};

static void tosa_register_types(void)

{

    type_register_static(&tosa_dac_info);

    type_register_static(&tosa_ssp_info);

}

type_init(tosa_register_types)