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 "qemu/osdep.h"
  15#include "qapi/error.h"
  16#include "hw/hw.h"
  17#include "hw/arm/pxa.h"
  18#include "hw/arm/boot.h"
  19#include "hw/arm/sharpsl.h"
  20#include "hw/pcmcia.h"
  21#include "hw/boards.h"
  22#include "hw/display/tc6393xb.h"
  23#include "hw/i2c/i2c.h"
  24#include "hw/ssi/ssi.h"
  25#include "hw/sysbus.h"
  26#include "exec/address-spaces.h"
  27#include "sysemu/sysemu.h"
  28
  29#define TOSA_RAM    0x04000000
  30#define TOSA_ROM        0x00800000
  31
  32#define TOSA_GPIO_USB_IN                (5)
  33#define TOSA_GPIO_nSD_DETECT    (9)
  34#define TOSA_GPIO_ON_RESET              (19)
  35#define TOSA_GPIO_CF_IRQ                (21)    /* CF slot0 Ready */
  36#define TOSA_GPIO_CF_CD                 (13)
  37#define TOSA_GPIO_TC6393XB_INT  (15)
  38#define TOSA_GPIO_JC_CF_IRQ             (36)    /* CF slot1 Ready */
  39
  40#define TOSA_SCOOP_GPIO_BASE    1
  41#define TOSA_GPIO_IR_POWERDWN   (TOSA_SCOOP_GPIO_BASE + 2)
  42#define TOSA_GPIO_SD_WP                 (TOSA_SCOOP_GPIO_BASE + 3)
  43#define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)
  44
  45#define TOSA_SCOOP_JC_GPIO_BASE         1
  46#define TOSA_GPIO_BT_LED                (TOSA_SCOOP_JC_GPIO_BASE + 0)
  47#define TOSA_GPIO_NOTE_LED              (TOSA_SCOOP_JC_GPIO_BASE + 1)
  48#define TOSA_GPIO_CHRG_ERR_LED          (TOSA_SCOOP_JC_GPIO_BASE + 2)
  49#define TOSA_GPIO_TC6393XB_L3V_ON       (TOSA_SCOOP_JC_GPIO_BASE + 5)
  50#define TOSA_GPIO_WLAN_LED              (TOSA_SCOOP_JC_GPIO_BASE + 7)
  51
  52#define DAC_BASE        0x4e
  53#define DAC_CH1         0
  54#define DAC_CH2         1
  55
  56static void tosa_microdrive_attach(PXA2xxState *cpu)
  57{
  58    PCMCIACardState *md;
  59    DriveInfo *dinfo;
  60
  61    dinfo = drive_get(IF_IDE, 0, 0);
  62    if (!dinfo || dinfo->media_cd)
  63        return;
  64    md = dscm1xxxx_init(dinfo);
  65    pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  66}
  67
  68static void tosa_out_switch(void *opaque, int line, int level)
  69{
  70    switch (line) {
  71        case 0:
  72            fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
  73            break;
  74        case 1:
  75            fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
  76            break;
  77        case 2:
  78            fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
  79            break;
  80        case 3:
  81            fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
  82            break;
  83        default:
  84            fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
  85            break;
  86    }
  87}
  88
  89static void tosa_reset(void *opaque, int line, int level)
  90{
  91    if (level) {
  92        qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
  93    }
  94}
  95
  96static void tosa_gpio_setup(PXA2xxState *cpu,
  97                DeviceState *scp0,
  98                DeviceState *scp1,
  99                TC6393xbState *tmio)
 100{
 101    qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
 102    qemu_irq reset;
 103
 104    /* MMC/SD host */
 105    pxa2xx_mmci_handlers(cpu->mmc,
 106                    qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
 107                    qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
 108
 109    /* Handle reset */
 110    reset = qemu_allocate_irq(tosa_reset, cpu, 0);
 111    qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, reset);
 112
 113    /* PCMCIA signals: card's IRQ and Card-Detect */
 114    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 115                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 116                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 117
 118    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 119                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 120                        NULL);
 121
 122    qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
 123    qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
 124    qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
 125    qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
 126
 127    qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 128
 129    /* UDC Vbus */
 130    qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 131}
 132
 133static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
 134{
 135    fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
 136    return 0;
 137}
 138
 139static void tosa_ssp_realize(SSISlave *dev, Error **errp)
 140{
 141    /* Nothing to do.  */
 142}
 143
 144#define TYPE_TOSA_DAC "tosa_dac"
 145#define TOSA_DAC(obj) OBJECT_CHECK(TosaDACState, (obj), TYPE_TOSA_DAC)
 146
 147typedef struct {
 148    I2CSlave parent_obj;
 149
 150    int len;
 151    char buf[3];
 152} TosaDACState;
 153
 154static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 155{
 156    TosaDACState *s = TOSA_DAC(i2c);
 157
 158    s->buf[s->len] = data;
 159    if (s->len ++ > 2) {
 160#ifdef VERBOSE
 161        fprintf(stderr, "%s: message too long (%i bytes)\n", __func__, s->len);
 162#endif
 163        return 1;
 164    }
 165
 166    if (s->len == 2) {
 167        fprintf(stderr, "dac: channel %d value 0x%02x\n",
 168                s->buf[0], s->buf[1]);
 169    }
 170
 171    return 0;
 172}
 173
 174static int tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
 175{
 176    TosaDACState *s = TOSA_DAC(i2c);
 177
 178    s->len = 0;
 179    switch (event) {
 180    case I2C_START_SEND:
 181        break;
 182    case I2C_START_RECV:
 183        printf("%s: recv not supported!!!\n", __func__);
 184        break;
 185    case I2C_FINISH:
 186#ifdef VERBOSE
 187        if (s->len < 2)
 188            printf("%s: message too short (%i bytes)\n", __func__, s->len);
 189        if (s->len > 2)
 190            printf("%s: message too long\n", __func__);
 191#endif
 192        break;
 193    default:
 194        break;
 195    }
 196
 197    return 0;
 198}
 199
 200static uint8_t tosa_dac_recv(I2CSlave *s)
 201{
 202    printf("%s: recv not supported!!!\n", __func__);
 203    return 0xff;
 204}
 205
 206static void tosa_tg_init(PXA2xxState *cpu)
 207{
 208    I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 209    i2c_create_slave(bus, TYPE_TOSA_DAC, DAC_BASE);
 210    ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 211}
 212
 213
 214static struct arm_boot_info tosa_binfo = {
 215    .loader_start = PXA2XX_SDRAM_BASE,
 216    .ram_size = 0x04000000,
 217};
 218
 219static void tosa_init(MachineState *machine)
 220{
 221    const char *kernel_filename = machine->kernel_filename;
 222    const char *kernel_cmdline = machine->kernel_cmdline;
 223    const char *initrd_filename = machine->initrd_filename;
 224    MemoryRegion *address_space_mem = get_system_memory();
 225    MemoryRegion *rom = g_new(MemoryRegion, 1);
 226    PXA2xxState *mpu;
 227    TC6393xbState *tmio;
 228    DeviceState *scp0, *scp1;
 229
 230    mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 231
 232    memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
 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 void tosapda_machine_init(MachineClass *mc)
 257{
 258    mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)";
 259    mc->init = tosa_init;
 260    mc->block_default_type = IF_IDE;
 261    mc->ignore_memory_transaction_failures = true;
 262}
 263
 264DEFINE_MACHINE("tosa", tosapda_machine_init)
 265
 266static void tosa_dac_class_init(ObjectClass *klass, void *data)
 267{
 268    I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 269
 270    k->event = tosa_dac_event;
 271    k->recv = tosa_dac_recv;
 272    k->send = tosa_dac_send;
 273}
 274
 275static const TypeInfo tosa_dac_info = {
 276    .name          = TYPE_TOSA_DAC,
 277    .parent        = TYPE_I2C_SLAVE,
 278    .instance_size = sizeof(TosaDACState),
 279    .class_init    = tosa_dac_class_init,
 280};
 281
 282static void tosa_ssp_class_init(ObjectClass *klass, void *data)
 283{
 284    SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
 285
 286    k->realize = tosa_ssp_realize;
 287    k->transfer = tosa_ssp_tansfer;
 288}
 289
 290static const TypeInfo tosa_ssp_info = {
 291    .name          = "tosa-ssp",
 292    .parent        = TYPE_SSI_SLAVE,
 293    .instance_size = sizeof(SSISlave),
 294    .class_init    = tosa_ssp_class_init,
 295};
 296
 297static void tosa_register_types(void)
 298{
 299    type_register_static(&tosa_dac_info);
 300    type_register_static(&tosa_ssp_info);
 301}
 302
 303type_init(tosa_register_types)
 304