qemu/hw/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.h"
  15#include "pxa.h"
  16#include "arm-misc.h"
  17#include "devices.h"
  18#include "sharpsl.h"
  19#include "pcmcia.h"
  20#include "block.h"
  21#include "boards.h"
  22#include "i2c.h"
  23#include "ssi.h"
  24#include "blockdev.h"
  25#include "sysbus.h"
  26#include "exec-memory.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
 135typedef struct {
 136    I2CSlave i2c;
 137    int len;
 138    char buf[3];
 139} TosaDACState;
 140
 141static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 142{
 143    TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 144    s->buf[s->len] = data;
 145    if (s->len ++ > 2) {
 146#ifdef VERBOSE
 147        fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 148#endif
 149        return 1;
 150    }
 151
 152    if (s->len == 2) {
 153        fprintf(stderr, "dac: channel %d value 0x%02x\n",
 154                s->buf[0], s->buf[1]);
 155    }
 156
 157    return 0;
 158}
 159
 160static void tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
 161{
 162    TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 163    s->len = 0;
 164    switch (event) {
 165    case I2C_START_SEND:
 166        break;
 167    case I2C_START_RECV:
 168        printf("%s: recv not supported!!!\n", __FUNCTION__);
 169        break;
 170    case I2C_FINISH:
 171#ifdef VERBOSE
 172        if (s->len < 2)
 173            printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 174        if (s->len > 2)
 175            printf("%s: message too long\n", __FUNCTION__);
 176#endif
 177        break;
 178    default:
 179        break;
 180    }
 181}
 182
 183static int tosa_dac_recv(I2CSlave *s)
 184{
 185    printf("%s: recv not supported!!!\n", __FUNCTION__);
 186    return -1;
 187}
 188
 189static int tosa_dac_init(I2CSlave *i2c)
 190{
 191    /* Nothing to do.  */
 192    return 0;
 193}
 194
 195static void tosa_tg_init(PXA2xxState *cpu)
 196{
 197    i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 198    i2c_create_slave(bus, "tosa_dac", DAC_BASE);
 199    ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 200}
 201
 202
 203static struct arm_boot_info tosa_binfo = {
 204    .loader_start = PXA2XX_SDRAM_BASE,
 205    .ram_size = 0x04000000,
 206};
 207
 208static void tosa_init(QEMUMachineInitArgs *args)
 209{
 210    const char *cpu_model = args->cpu_model;
 211    const char *kernel_filename = args->kernel_filename;
 212    const char *kernel_cmdline = args->kernel_cmdline;
 213    const char *initrd_filename = args->initrd_filename;
 214    MemoryRegion *address_space_mem = get_system_memory();
 215    MemoryRegion *rom = g_new(MemoryRegion, 1);
 216    PXA2xxState *mpu;
 217    TC6393xbState *tmio;
 218    DeviceState *scp0, *scp1;
 219
 220    if (!cpu_model)
 221        cpu_model = "pxa255";
 222
 223    mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 224
 225    memory_region_init_ram(rom, "tosa.rom", TOSA_ROM);
 226    vmstate_register_ram_global(rom);
 227    memory_region_set_readonly(rom, true);
 228    memory_region_add_subregion(address_space_mem, 0, rom);
 229
 230    tmio = tc6393xb_init(address_space_mem, 0x10000000,
 231            qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));
 232
 233    scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 234    scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 235
 236    tosa_gpio_setup(mpu, scp0, scp1, tmio);
 237
 238    tosa_microdrive_attach(mpu);
 239
 240    tosa_tg_init(mpu);
 241
 242    tosa_binfo.kernel_filename = kernel_filename;
 243    tosa_binfo.kernel_cmdline = kernel_cmdline;
 244    tosa_binfo.initrd_filename = initrd_filename;
 245    tosa_binfo.board_id = 0x208;
 246    arm_load_kernel(mpu->cpu, &tosa_binfo);
 247    sl_bootparam_write(SL_PXA_PARAM_BASE);
 248}
 249
 250static QEMUMachine tosapda_machine = {
 251    .name = "tosa",
 252    .desc = "Tosa PDA (PXA255)",
 253    .init = tosa_init,
 254};
 255
 256static void tosapda_machine_init(void)
 257{
 258    qemu_register_machine(&tosapda_machine);
 259}
 260
 261machine_init(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 TypeInfo tosa_dac_info = {
 274    .name          = "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 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