qemu/hw/arm/tosa.c
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   1/* vim:set shiftwidth=4 ts=4 et: */
   2/*
   3 * PXA255 Sharp Zaurus SL-6000 PDA platform
   4 *
   5 * Copyright (c) 2008 Dmitry Baryshkov
   6 *
   7 * Code based on spitz platform by Andrzej Zaborowski <balrog@zabor.org>
   8 * This code is licensed under the GNU GPL v2.
   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.
  12 */
  13
  14#include "hw/hw.h"
  15#include "hw/arm/pxa.h"
  16#include "hw/arm/arm.h"
  17#include "hw/devices.h"
  18#include "hw/arm/sharpsl.h"
  19#include "hw/pcmcia.h"
  20#include "hw/boards.h"
  21#include "hw/i2c/i2c.h"
  22#include "hw/ssi.h"
  23#include "sysemu/block-backend.h"
  24#include "hw/sysbus.h"
  25#include "exec/address-spaces.h"
  26
  27#define TOSA_RAM    0x04000000
  28#define TOSA_ROM        0x00800000
  29
  30#define TOSA_GPIO_USB_IN                (5)
  31#define TOSA_GPIO_nSD_DETECT    (9)
  32#define TOSA_GPIO_ON_RESET              (19)
  33#define TOSA_GPIO_CF_IRQ                (21)    /* CF slot0 Ready */
  34#define TOSA_GPIO_CF_CD                 (13)
  35#define TOSA_GPIO_TC6393XB_INT  (15)
  36#define TOSA_GPIO_JC_CF_IRQ             (36)    /* CF slot1 Ready */
  37
  38#define TOSA_SCOOP_GPIO_BASE    1
  39#define TOSA_GPIO_IR_POWERDWN   (TOSA_SCOOP_GPIO_BASE + 2)
  40#define TOSA_GPIO_SD_WP                 (TOSA_SCOOP_GPIO_BASE + 3)
  41#define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)
  42
  43#define TOSA_SCOOP_JC_GPIO_BASE         1
  44#define TOSA_GPIO_BT_LED                (TOSA_SCOOP_JC_GPIO_BASE + 0)
  45#define TOSA_GPIO_NOTE_LED              (TOSA_SCOOP_JC_GPIO_BASE + 1)
  46#define TOSA_GPIO_CHRG_ERR_LED          (TOSA_SCOOP_JC_GPIO_BASE + 2)
  47#define TOSA_GPIO_TC6393XB_L3V_ON       (TOSA_SCOOP_JC_GPIO_BASE + 5)
  48#define TOSA_GPIO_WLAN_LED              (TOSA_SCOOP_JC_GPIO_BASE + 7)
  49
  50#define DAC_BASE        0x4e
  51#define DAC_CH1         0
  52#define DAC_CH2         1
  53
  54static void tosa_microdrive_attach(PXA2xxState *cpu)
  55{
  56    PCMCIACardState *md;
  57    DriveInfo *dinfo;
  58
  59    dinfo = drive_get(IF_IDE, 0, 0);
  60    if (!dinfo || dinfo->media_cd)
  61        return;
  62    md = dscm1xxxx_init(dinfo);
  63    pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  64}
  65
  66static void tosa_out_switch(void *opaque, int line, int level)
  67{
  68    switch (line) {
  69        case 0:
  70            fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
  71            break;
  72        case 1:
  73            fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
  74            break;
  75        case 2:
  76            fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
  77            break;
  78        case 3:
  79            fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
  80            break;
  81        default:
  82            fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
  83            break;
  84    }
  85}
  86
  87
  88static void tosa_gpio_setup(PXA2xxState *cpu,
  89                DeviceState *scp0,
  90                DeviceState *scp1,
  91                TC6393xbState *tmio)
  92{
  93    qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
  94    /* MMC/SD host */
  95    pxa2xx_mmci_handlers(cpu->mmc,
  96                    qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
  97                    qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
  98
  99    /* Handle reset */
 100    qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);
 101
 102    /* PCMCIA signals: card's IRQ and Card-Detect */
 103    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 104                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 105                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 106
 107    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 108                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 109                        NULL);
 110
 111    qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
 112    qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
 113    qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
 114    qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
 115
 116    qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 117
 118    /* UDC Vbus */
 119    qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 120}
 121
 122static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
 123{
 124    fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
 125    return 0;
 126}
 127
 128static int tosa_ssp_init(SSISlave *dev)
 129{
 130    /* Nothing to do.  */
 131    return 0;
 132}
 133
 134#define TYPE_TOSA_DAC "tosa_dac"
 135#define TOSA_DAC(obj) OBJECT_CHECK(TosaDACState, (obj), TYPE_TOSA_DAC)
 136
 137typedef struct {
 138    I2CSlave parent_obj;
 139
 140    int len;
 141    char buf[3];
 142} TosaDACState;
 143
 144static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 145{
 146    TosaDACState *s = TOSA_DAC(i2c);
 147
 148    s->buf[s->len] = data;
 149    if (s->len ++ > 2) {
 150#ifdef VERBOSE
 151        fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 152#endif
 153        return 1;
 154    }
 155
 156    if (s->len == 2) {
 157        fprintf(stderr, "dac: channel %d value 0x%02x\n",
 158                s->buf[0], s->buf[1]);
 159    }
 160
 161    return 0;
 162}
 163
 164static void tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
 165{
 166    TosaDACState *s = TOSA_DAC(i2c);
 167
 168    s->len = 0;
 169    switch (event) {
 170    case I2C_START_SEND:
 171        break;
 172    case I2C_START_RECV:
 173        printf("%s: recv not supported!!!\n", __FUNCTION__);
 174        break;
 175    case I2C_FINISH:
 176#ifdef VERBOSE
 177        if (s->len < 2)
 178            printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 179        if (s->len > 2)
 180            printf("%s: message too long\n", __FUNCTION__);
 181#endif
 182        break;
 183    default:
 184        break;
 185    }
 186}
 187
 188static int tosa_dac_recv(I2CSlave *s)
 189{
 190    printf("%s: recv not supported!!!\n", __FUNCTION__);
 191    return -1;
 192}
 193
 194static int tosa_dac_init(I2CSlave *i2c)
 195{
 196    /* Nothing to do.  */
 197    return 0;
 198}
 199
 200static void tosa_tg_init(PXA2xxState *cpu)
 201{
 202    I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 203    i2c_create_slave(bus, TYPE_TOSA_DAC, DAC_BASE);
 204    ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 205}
 206
 207
 208static struct arm_boot_info tosa_binfo = {
 209    .loader_start = PXA2XX_SDRAM_BASE,
 210    .ram_size = 0x04000000,
 211};
 212
 213static void tosa_init(MachineState *machine)
 214{
 215    const char *cpu_model = machine->cpu_model;
 216    const char *kernel_filename = machine->kernel_filename;
 217    const char *kernel_cmdline = machine->kernel_cmdline;
 218    const char *initrd_filename = machine->initrd_filename;
 219    MemoryRegion *address_space_mem = get_system_memory();
 220    MemoryRegion *rom = g_new(MemoryRegion, 1);
 221    PXA2xxState *mpu;
 222    TC6393xbState *tmio;
 223    DeviceState *scp0, *scp1;
 224
 225    if (!cpu_model)
 226        cpu_model = "pxa255";
 227
 228    mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 229
 230    memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
 231    vmstate_register_ram_global(rom);
 232    memory_region_set_readonly(rom, true);
 233    memory_region_add_subregion(address_space_mem, 0, rom);
 234
 235    tmio = tc6393xb_init(address_space_mem, 0x10000000,
 236            qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));
 237
 238    scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 239    scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 240
 241    tosa_gpio_setup(mpu, scp0, scp1, tmio);
 242
 243    tosa_microdrive_attach(mpu);
 244
 245    tosa_tg_init(mpu);
 246
 247    tosa_binfo.kernel_filename = kernel_filename;
 248    tosa_binfo.kernel_cmdline = kernel_cmdline;
 249    tosa_binfo.initrd_filename = initrd_filename;
 250    tosa_binfo.board_id = 0x208;
 251    arm_load_kernel(mpu->cpu, &tosa_binfo);
 252    sl_bootparam_write(SL_PXA_PARAM_BASE);
 253}
 254
 255static void tosapda_machine_init(MachineClass *mc)
 256{
 257    mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)";
 258    mc->init = tosa_init;
 259}
 260
 261DEFINE_MACHINE("tosa", tosapda_machine_init)
 262
 263static void tosa_dac_class_init(ObjectClass *klass, void *data)
 264{
 265    I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 266
 267    k->init = tosa_dac_init;
 268    k->event = tosa_dac_event;
 269    k->recv = tosa_dac_recv;
 270    k->send = tosa_dac_send;
 271}
 272
 273static const TypeInfo tosa_dac_info = {
 274    .name          = TYPE_TOSA_DAC,
 275    .parent        = TYPE_I2C_SLAVE,
 276    .instance_size = sizeof(TosaDACState),
 277    .class_init    = tosa_dac_class_init,
 278};
 279
 280static void tosa_ssp_class_init(ObjectClass *klass, void *data)
 281{
 282    SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
 283
 284    k->init = tosa_ssp_init;
 285    k->transfer = tosa_ssp_tansfer;
 286}
 287
 288static const TypeInfo tosa_ssp_info = {
 289    .name          = "tosa-ssp",
 290    .parent        = TYPE_SSI_SLAVE,
 291    .instance_size = sizeof(SSISlave),
 292    .class_init    = tosa_ssp_class_init,
 293};
 294
 295static void tosa_register_types(void)
 296{
 297    type_register_static(&tosa_dac_info);
 298    type_register_static(&tosa_ssp_info);
 299}
 300
 301type_init(tosa_register_types)
 302