hw/arm/tosa.c

   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 "sysemu/runstate.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/irq.h"
  25 #include "hw/ssi/ssi.h"
  26 #include "hw/sysbus.h"
  27 #include "hw/misc/led.h"
  28 #include "exec/address-spaces.h"
  29 #include "qom/object.h"
  30
  31 #define TOSA_RAM 0x04000000
  32 #define TOSA_ROM 0x00800000
  33
  34 #define TOSA_GPIO_USB_IN                (5)
  35 #define TOSA_GPIO_nSD_DETECT            (9)
  36 #define TOSA_GPIO_ON_RESET              (19)
  37 #define TOSA_GPIO_CF_IRQ                (21)    /* CF slot0 Ready */
  38 #define TOSA_GPIO_CF_CD                 (13)
  39 #define TOSA_GPIO_TC6393XB_INT          (15)
  40 #define TOSA_GPIO_JC_CF_IRQ             (36)    /* CF slot1 Ready */
  41
  42 #define TOSA_SCOOP_GPIO_BASE            1
  43 #define TOSA_GPIO_IR_POWERDWN           (TOSA_SCOOP_GPIO_BASE + 2)
  44 #define TOSA_GPIO_SD_WP                 (TOSA_SCOOP_GPIO_BASE + 3)
  45 #define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)
  46
  47 #define TOSA_SCOOP_JC_GPIO_BASE         1
  48 #define TOSA_GPIO_BT_LED                (TOSA_SCOOP_JC_GPIO_BASE + 0)
  49 #define TOSA_GPIO_NOTE_LED              (TOSA_SCOOP_JC_GPIO_BASE + 1)
  50 #define TOSA_GPIO_CHRG_ERR_LED          (TOSA_SCOOP_JC_GPIO_BASE + 2)
  51 #define TOSA_GPIO_TC6393XB_L3V_ON       (TOSA_SCOOP_JC_GPIO_BASE + 5)
  52 #define TOSA_GPIO_WLAN_LED              (TOSA_SCOOP_JC_GPIO_BASE + 7)
  53
  54 #define DAC_BASE 0x4e
  55 #define DAC_CH1 0
  56 #define DAC_CH2 1
  57
  58 static void tosa_microdrive_attach(PXA2xxState *cpu)
  59 {
  60     PCMCIACardState *md;
  61     DriveInfo *dinfo;
  62
  63     dinfo = drive_get(IF_IDE, 0, 0);
  64     if (!dinfo || dinfo->media_cd)
  65         return;
  66     md = dscm1xxxx_init(dinfo);
  67     pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  68 }
  69
  70 /*
  71  * Encapsulation of some GPIO line behaviour for the Tosa board
  72  *
  73  * QEMU interface:
  74  *  + named GPIO inputs "leds[0..3]": assert to light LEDs
  75  *  + named GPIO input "reset": when asserted, resets the system
  76  */
  77
  78 #define TYPE_TOSA_MISC_GPIO "tosa-misc-gpio"
  79 OBJECT_DECLARE_SIMPLE_TYPE(TosaMiscGPIOState, TOSA_MISC_GPIO)
  80
  81 struct TosaMiscGPIOState {
  82     SysBusDevice parent_obj;
  83 };
  84
  85 static void tosa_reset(void *opaque, int line, int level)
  86 {
  87     if (level) {
  88         qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
  89     }
  90 }
  91
  92 static void tosa_misc_gpio_init(Object *obj)
  93 {
  94     DeviceState *dev = DEVICE(obj);
  95
  96     qdev_init_gpio_in_named(dev, tosa_reset, "reset", 1);
  97 }
  98
  99 static void tosa_gpio_setup(PXA2xxState *cpu,
 100                 DeviceState *scp0,
 101                 DeviceState *scp1,
 102                 TC6393xbState *tmio)
 103 {
 104     DeviceState *misc_gpio;
 105     LEDState *led[4];
 106
 107     misc_gpio = sysbus_create_simple(TYPE_TOSA_MISC_GPIO, -1, NULL);
 108
 109     /* MMC/SD host */
 110     pxa2xx_mmci_handlers(cpu->mmc,
 111                     qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
 112                     qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
 113
 114     /* Handle reset */
 115     qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET,
 116                           qdev_get_gpio_in_named(misc_gpio, "reset", 0));
 117
 118     /* PCMCIA signals: card's IRQ and Card-Detect */
 119     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 120                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 121                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 122
 123     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 124                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 125                         NULL);
 126
 127     led[0] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH,
 128                                LED_COLOR_BLUE, "bluetooth");
 129     led[1] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH,
 130                                LED_COLOR_GREEN, "note");
 131     led[2] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH,
 132                                LED_COLOR_AMBER, "charger-error");
 133     led[3] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH,
 134                                LED_COLOR_GREEN, "wlan");
 135
 136     qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED,
 137                           qdev_get_gpio_in(DEVICE(led[0]), 0));
 138     qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED,
 139                           qdev_get_gpio_in(DEVICE(led[1]), 0));
 140     qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED,
 141                           qdev_get_gpio_in(DEVICE(led[2]), 0));
 142     qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED,
 143                           qdev_get_gpio_in(DEVICE(led[3]), 0));
 144
 145     qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 146
 147     /* UDC Vbus */
 148     qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 149 }
 150
 151 static uint32_t tosa_ssp_tansfer(SSIPeripheral *dev, uint32_t value)
 152 {
 153     fprintf(stderr, "TG: %u %02x\n", value >> 5, value & 0x1f);
 154     return 0;
 155 }
 156
 157 static void tosa_ssp_realize(SSIPeripheral *dev, Error **errp)
 158 {
 159     /* Nothing to do.  */
 160 }
 161
 162 #define TYPE_TOSA_DAC "tosa_dac"
 163 OBJECT_DECLARE_SIMPLE_TYPE(TosaDACState, TOSA_DAC)
 164
 165 struct TosaDACState {
 166     I2CSlave parent_obj;
 167
 168     int len;
 169     char buf[3];
 170 };
 171
 172 static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 173 {
 174     TosaDACState *s = TOSA_DAC(i2c);
 175
 176     s->buf[s->len] = data;
 177     if (s->len ++ > 2) {
 178 #ifdef VERBOSE
 179         fprintf(stderr, "%s: message too long (%i bytes)\n", __func__, s->len);
 180 #endif
 181         return 1;
 182     }
 183
 184     if (s->len == 2) {
 185         fprintf(stderr, "dac: channel %d value 0x%02x\n",
 186                 s->buf[0], s->buf[1]);
 187     }
 188
 189     return 0;
 190 }
 191
 192 static int tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
 193 {
 194     TosaDACState *s = TOSA_DAC(i2c);
 195
 196     s->len = 0;
 197     switch (event) {
 198     case I2C_START_SEND:
 199         break;
 200     case I2C_START_RECV:
 201         printf("%s: recv not supported!!!\n", __func__);
 202         break;
 203     case I2C_FINISH:
 204 #ifdef VERBOSE
 205         if (s->len < 2)
 206             printf("%s: message too short (%i bytes)\n", __func__, s->len);
 207         if (s->len > 2)
 208             printf("%s: message too long\n", __func__);
 209 #endif
 210         break;
 211     default:
 212         break;
 213     }
 214
 215     return 0;
 216 }
 217
 218 static uint8_t tosa_dac_recv(I2CSlave *s)
 219 {
 220     printf("%s: recv not supported!!!\n", __func__);
 221     return 0xff;
 222 }
 223
 224 static void tosa_tg_init(PXA2xxState *cpu)
 225 {
 226     I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 227     i2c_slave_create_simple(bus, TYPE_TOSA_DAC, DAC_BASE);
 228     ssi_create_peripheral(cpu->ssp[1], "tosa-ssp");
 229 }
 230
 231
 232 static struct arm_boot_info tosa_binfo = {
 233     .loader_start = PXA2XX_SDRAM_BASE,
 234     .ram_size = 0x04000000,
 235 };
 236
 237 static void tosa_init(MachineState *machine)
 238 {
 239     MemoryRegion *address_space_mem = get_system_memory();
 240     MemoryRegion *rom = g_new(MemoryRegion, 1);
 241     PXA2xxState *mpu;
 242     TC6393xbState *tmio;
 243     DeviceState *scp0, *scp1;
 244
 245     mpu = pxa255_init(tosa_binfo.ram_size);
 246
 247     memory_region_init_rom(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
 248     memory_region_add_subregion(address_space_mem, 0, rom);
 249
 250     tmio = tc6393xb_init(address_space_mem, 0x10000000,
 251             qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));
 252
 253     scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 254     scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 255
 256     tosa_gpio_setup(mpu, scp0, scp1, tmio);
 257
 258     tosa_microdrive_attach(mpu);
 259
 260     tosa_tg_init(mpu);
 261
 262     tosa_binfo.board_id = 0x208;
 263     arm_load_kernel(mpu->cpu, machine, &tosa_binfo);
 264     sl_bootparam_write(SL_PXA_PARAM_BASE);
 265 }
 266
 267 static void tosapda_machine_init(MachineClass *mc)
 268 {
 269     mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)";
 270     mc->init = tosa_init;
 271     mc->block_default_type = IF_IDE;
 272     mc->ignore_memory_transaction_failures = true;
 273 }
 274
 275 DEFINE_MACHINE("tosa", tosapda_machine_init)
 276
 277 static void tosa_dac_class_init(ObjectClass *klass, void *data)
 278 {
 279     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 280
 281     k->event = tosa_dac_event;
 282     k->recv = tosa_dac_recv;
 283     k->send = tosa_dac_send;
 284 }
 285
 286 static const TypeInfo tosa_dac_info = {
 287     .name          = TYPE_TOSA_DAC,
 288     .parent        = TYPE_I2C_SLAVE,
 289     .instance_size = sizeof(TosaDACState),
 290     .class_init    = tosa_dac_class_init,
 291 };
 292
 293 static void tosa_ssp_class_init(ObjectClass *klass, void *data)
 294 {
 295     SSIPeripheralClass *k = SSI_PERIPHERAL_CLASS(klass);
 296
 297     k->realize = tosa_ssp_realize;
 298     k->transfer = tosa_ssp_tansfer;
 299 }
 300
 301 static const TypeInfo tosa_ssp_info = {
 302     .name          = "tosa-ssp",
 303     .parent        = TYPE_SSI_PERIPHERAL,
 304     .instance_size = sizeof(SSIPeripheral),
 305     .class_init    = tosa_ssp_class_init,
 306 };
 307
 308 static const TypeInfo tosa_misc_gpio_info = {
 309     .name          = TYPE_TOSA_MISC_GPIO,
 310     .parent        = TYPE_SYS_BUS_DEVICE,
 311     .instance_size = sizeof(TosaMiscGPIOState),
 312     .instance_init = tosa_misc_gpio_init,
 313     /*
 314      * No class init required: device has no internal state so does not
 315      * need to set up reset or vmstate, and has no realize method.
 316      */
 317 };
 318
 319 static void tosa_register_types(void)
 320 {
 321     type_register_static(&tosa_dac_info);
 322     type_register_static(&tosa_ssp_info);
 323     type_register_static(&tosa_misc_gpio_info);
 324 }
 325
 326 type_init(tosa_register_types)