Archipelago » qemu

/* 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.

 */

#include "hw.h"

#include "pxa.h"

#include "arm-misc.h"

#include "sysemu.h"

#include "devices.h"

#include "sharpsl.h"

#include "pcmcia.h"

#include "block.h"

#include "boards.h"

#include "i2c.h"

#define TOSA_RAM    0x04000000

#define TOSA_ROM        0x00800000

#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(struct pxa2xx_state_s *cpu)

{

    struct pcmcia_card_s *md;

    int index;

    BlockDriverState *bs;

    index = drive_get_index(IF_IDE, 0, 0);

    if (index == -1)

        return;

    bs = drives_table[index].bdrv;

    if (bdrv_is_inserted(bs) && !bdrv_is_removable(bs)) {

        md = dscm1xxxx_init(bs);

        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(struct pxa2xx_state_s *cpu,

                struct scoop_info_s *scp0,

                struct scoop_info_s *scp1,

                struct tc6393xb_s *tmio)

{

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

    /* MMC/SD host */

    pxa2xx_mmci_handlers(cpu->mmc,

                    scoop_gpio_in_get(scp0)[TOSA_GPIO_SD_WP],

                    qemu_irq_invert(pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_nSD_DETECT]));

    /* Handle reset */

    pxa2xx_gpio_out_set(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);

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

    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],

                        pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_CF_IRQ],

                        pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_CF_CD]);

    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],

                        pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_JC_CF_IRQ],

                        NULL);

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

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

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

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

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

}

static uint32_t tosa_ssp_read(void *opaque)

{

    return 0;

}

static void tosa_ssp_write(void *opaque, uint32_t value)

{

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

}

struct tosa_dac_i2c {

    i2c_slave i2c;

    int len;

    char buf[3];

};

static int tosa_dac_send(i2c_slave *i2c, uint8_t data)

{

    struct tosa_dac_i2c *s = (struct tosa_dac_i2c *)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(i2c_slave *i2c, enum i2c_event event)

{

    struct tosa_dac_i2c *s = (struct tosa_dac_i2c *)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(i2c_slave *s)

{

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

    return -1;

}

static void tosa_tg_init(struct pxa2xx_state_s *cpu)

{

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

    struct i2c_slave *dac = i2c_slave_init(bus, 0, sizeof(struct tosa_dac_i2c));

    dac->send = tosa_dac_send;

    dac->event = tosa_dac_event;

    dac->recv = tosa_dac_recv;

    i2c_set_slave_address(dac, DAC_BASE);

    pxa2xx_ssp_attach(cpu->ssp[1], tosa_ssp_read,

                    tosa_ssp_write, cpu);

}

static struct arm_boot_info tosa_binfo = {

    .loader_start = PXA2XX_SDRAM_BASE,

    .ram_size = 0x04000000,

};

static void tosa_init(ram_addr_t ram_size, int vga_ram_size,

                const char *boot_device,

                const char *kernel_filename, const char *kernel_cmdline,

                const char *initrd_filename, const char *cpu_model)

{

    struct pxa2xx_state_s *cpu;

    struct tc6393xb_s *tmio;

    struct scoop_info_s *scp0, *scp1;

    if (ram_size < (TOSA_RAM + TOSA_ROM + PXA2XX_INTERNAL_SIZE + TC6393XB_RAM)) {

        fprintf(stderr, "This platform requires %i bytes of memory\n",

                TOSA_RAM + TOSA_ROM + PXA2XX_INTERNAL_SIZE);

        exit(1);

    }

    if (!cpu_model)

        cpu_model = "pxa255";

    cpu = pxa255_init(tosa_binfo.ram_size);

    cpu_register_physical_memory(0, TOSA_ROM,

                    qemu_ram_alloc(TOSA_ROM) | IO_MEM_ROM);

    tmio = tc6393xb_init(0x10000000,

            pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_TC6393XB_INT]);

    scp0 = scoop_init(cpu, 0, 0x08800000);

    scp1 = scoop_init(cpu, 1, 0x14800040);

    tosa_gpio_setup(cpu, scp0, scp1, tmio);

    tosa_microdrive_attach(cpu);

    tosa_tg_init(cpu);

    /* Setup initial (reset) machine state */

    cpu->env->regs[15] = tosa_binfo.loader_start;

    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(cpu->env, &tosa_binfo);

    sl_bootparam_write(SL_PXA_PARAM_BASE - PXA2XX_SDRAM_BASE);

}

QEMUMachine tosapda_machine = {

    .name = "tosa",

    .desc = "Tosa PDA (PXA255)",

    .init = tosa_init,

    .ram_require = TOSA_RAM + TOSA_ROM + PXA2XX_INTERNAL_SIZE + RAMSIZE_FIXED + TC6393XB_RAM,

};