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 "block/block.h"
  21#include "hw/boards.h"
  22#include "hw/i2c/i2c.h"
  23#include "hw/ssi.h"
  24#include "sysemu/blockdev.h"
  25#include "hw/sysbus.h"
  26#include "exec/address-spaces.h"
  27
  28#define TOSA_RAM    0x04000000
  29#define TOSA_ROM        0x00800000
  30
  31#define TOSA_GPIO_USB_IN                (5)
  32#define TOSA_GPIO_nSD_DETECT    (9)
  33#define TOSA_GPIO_ON_RESET              (19)
  34#define TOSA_GPIO_CF_IRQ                (21)    /* CF slot0 Ready */
  35#define TOSA_GPIO_CF_CD                 (13)
  36#define TOSA_GPIO_TC6393XB_INT  (15)
  37#define TOSA_GPIO_JC_CF_IRQ             (36)    /* CF slot1 Ready */
  38
  39#define TOSA_SCOOP_GPIO_BASE    1
  40#define TOSA_GPIO_IR_POWERDWN   (TOSA_SCOOP_GPIO_BASE + 2)
  41#define TOSA_GPIO_SD_WP                 (TOSA_SCOOP_GPIO_BASE + 3)
  42#define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)
  43
  44#define TOSA_SCOOP_JC_GPIO_BASE         1
  45#define TOSA_GPIO_BT_LED                (TOSA_SCOOP_JC_GPIO_BASE + 0)
  46#define TOSA_GPIO_NOTE_LED              (TOSA_SCOOP_JC_GPIO_BASE + 1)
  47#define TOSA_GPIO_CHRG_ERR_LED          (TOSA_SCOOP_JC_GPIO_BASE + 2)
  48#define TOSA_GPIO_TC6393XB_L3V_ON       (TOSA_SCOOP_JC_GPIO_BASE + 5)
  49#define TOSA_GPIO_WLAN_LED              (TOSA_SCOOP_JC_GPIO_BASE + 7)
  50
  51#define DAC_BASE        0x4e
  52#define DAC_CH1         0
  53#define DAC_CH2         1
  54
  55static void tosa_microdrive_attach(PXA2xxState *cpu)
  56{
  57    PCMCIACardState *md;
  58    DriveInfo *dinfo;
  59
  60    dinfo = drive_get(IF_IDE, 0, 0);
  61    if (!dinfo || dinfo->media_cd)
  62        return;
  63    md = dscm1xxxx_init(dinfo);
  64    pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  65}
  66
  67static void tosa_out_switch(void *opaque, int line, int level)
  68{
  69    switch (line) {
  70        case 0:
  71            fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
  72            break;
  73        case 1:
  74            fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
  75            break;
  76        case 2:
  77            fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
  78            break;
  79        case 3:
  80            fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
  81            break;
  82        default:
  83            fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
  84            break;
  85    }
  86}
  87
  88
  89static void tosa_gpio_setup(PXA2xxState *cpu,
  90                DeviceState *scp0,
  91                DeviceState *scp1,
  92                TC6393xbState *tmio)
  93{
  94    qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
  95    /* MMC/SD host */
  96    pxa2xx_mmci_handlers(cpu->mmc,
  97                    qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
  98                    qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
  99
 100    /* Handle reset */
 101    qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);
 102
 103    /* PCMCIA signals: card's IRQ and Card-Detect */
 104    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 105                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 106                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 107
 108    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 109                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 110                        NULL);
 111
 112    qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
 113    qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
 114    qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
 115    qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
 116
 117    qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 118
 119    /* UDC Vbus */
 120    qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 121}
 122
 123static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
 124{
 125    fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
 126    return 0;
 127}
 128
 129static int tosa_ssp_init(SSISlave *dev)
 130{
 131    /* Nothing to do.  */
 132    return 0;
 133}
 134
 135#define TYPE_TOSA_DAC "tosa_dac"
 136#define TOSA_DAC(obj) OBJECT_CHECK(TosaDACState, (obj), TYPE_TOSA_DAC)
 137
 138typedef struct {
 139    I2CSlave parent_obj;
 140
 141    int len;
 142    char buf[3];
 143} TosaDACState;
 144
 145static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 146{
 147    TosaDACState *s = TOSA_DAC(i2c);
 148
 149    s->buf[s->len] = data;
 150    if (s->len ++ > 2) {
 151#ifdef VERBOSE
 152        fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 153#endif
 154        return 1;
 155    }
 156
 157    if (s->len == 2) {
 158        fprintf(stderr, "dac: channel %d value 0x%02x\n",
 159                s->buf[0], s->buf[1]);
 160    }
 161
 162    return 0;
 163}
 164
 165static void tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
 166{
 167    TosaDACState *s = TOSA_DAC(i2c);
 168
 169    s->len = 0;
 170    switch (event) {
 171    case I2C_START_SEND:
 172        break;
 173    case I2C_START_RECV:
 174        printf("%s: recv not supported!!!\n", __FUNCTION__);
 175        break;
 176    case I2C_FINISH:
 177#ifdef VERBOSE
 178        if (s->len < 2)
 179            printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 180        if (s->len > 2)
 181            printf("%s: message too long\n", __FUNCTION__);
 182#endif
 183        break;
 184    default:
 185        break;
 186    }
 187}
 188
 189static int tosa_dac_recv(I2CSlave *s)
 190{
 191    printf("%s: recv not supported!!!\n", __FUNCTION__);
 192    return -1;
 193}
 194
 195static int tosa_dac_init(I2CSlave *i2c)
 196{
 197    /* Nothing to do.  */
 198    return 0;
 199}
 200
 201static void tosa_tg_init(PXA2xxState *cpu)
 202{
 203    I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 204    i2c_create_slave(bus, TYPE_TOSA_DAC, DAC_BASE);
 205    ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 206}
 207
 208
 209static struct arm_boot_info tosa_binfo = {
 210    .loader_start = PXA2XX_SDRAM_BASE,
 211    .ram_size = 0x04000000,
 212};
 213
 214static void tosa_init(QEMUMachineInitArgs *args)
 215{
 216    const char *cpu_model = args->cpu_model;
 217    const char *kernel_filename = args->kernel_filename;
 218    const char *kernel_cmdline = args->kernel_cmdline;
 219    const char *initrd_filename = args->initrd_filename;
 220    MemoryRegion *address_space_mem = get_system_memory();
 221    MemoryRegion *rom = g_new(MemoryRegion, 1);
 222    PXA2xxState *mpu;
 223    TC6393xbState *tmio;
 224    DeviceState *scp0, *scp1;
 225
 226    if (!cpu_model)
 227        cpu_model = "pxa255";
 228
 229    mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 230
 231    memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM);
 232    vmstate_register_ram_global(rom);
 233    memory_region_set_readonly(rom, true);
 234    memory_region_add_subregion(address_space_mem, 0, rom);
 235
 236    tmio = tc6393xb_init(address_space_mem, 0x10000000,
 237            qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));
 238
 239    scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 240    scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 241
 242    tosa_gpio_setup(mpu, scp0, scp1, tmio);
 243
 244    tosa_microdrive_attach(mpu);
 245
 246    tosa_tg_init(mpu);
 247
 248    tosa_binfo.kernel_filename = kernel_filename;
 249    tosa_binfo.kernel_cmdline = kernel_cmdline;
 250    tosa_binfo.initrd_filename = initrd_filename;
 251    tosa_binfo.board_id = 0x208;
 252    arm_load_kernel(mpu->cpu, &tosa_binfo);
 253    sl_bootparam_write(SL_PXA_PARAM_BASE);
 254}
 255
 256static QEMUMachine tosapda_machine = {
 257    .name = "tosa",
 258    .desc = "Tosa PDA (PXA255)",
 259    .init = tosa_init,
 260};
 261
 262static void tosapda_machine_init(void)
 263{
 264    qemu_register_machine(&tosapda_machine);
 265}
 266
 267machine_init(tosapda_machine_init);
 268
 269static void tosa_dac_class_init(ObjectClass *klass, void *data)
 270{
 271    I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 272
 273    k->init = tosa_dac_init;
 274    k->event = tosa_dac_event;
 275    k->recv = tosa_dac_recv;
 276    k->send = tosa_dac_send;
 277}
 278
 279static const TypeInfo tosa_dac_info = {
 280    .name          = TYPE_TOSA_DAC,
 281    .parent        = TYPE_I2C_SLAVE,
 282    .instance_size = sizeof(TosaDACState),
 283    .class_init    = tosa_dac_class_init,
 284};
 285
 286static void tosa_ssp_class_init(ObjectClass *klass, void *data)
 287{
 288    SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
 289
 290    k->init = tosa_ssp_init;
 291    k->transfer = tosa_ssp_tansfer;
 292}
 293
 294static const TypeInfo tosa_ssp_info = {
 295    .name          = "tosa-ssp",
 296    .parent        = TYPE_SSI_SLAVE,
 297    .instance_size = sizeof(SSISlave),
 298    .class_init    = tosa_ssp_class_init,
 299};
 300
 301static void tosa_register_types(void)
 302{
 303    type_register_static(&tosa_dac_info);
 304    type_register_static(&tosa_ssp_info);
 305}
 306
 307type_init(tosa_register_types)
 308