hw/tusb6010.c

   1 /*
   2  * Texas Instruments TUSB6010 emulation.
   3  * Based on reverse-engineering of a linux driver.
   4  *
   5  * Copyright (C) 2008 Nokia Corporation
   6  * Written by Andrzej Zaborowski <andrew@openedhand.com>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 or
  11  * (at your option) version 3 of the License.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; if not, see <http://www.gnu.org/licenses/>.
  20  */
  21 #include "qemu-common.h"
  22 #include "qemu-timer.h"
  23 #include "usb.h"
  24 #include "omap.h"
  25 #include "irq.h"
  26 #include "devices.h"
  27 #include "sysbus.h"
  28
  29 typedef struct TUSBState {
  30     SysBusDevice busdev;
  31     MemoryRegion iomem[2];
  32     qemu_irq irq;
  33     MUSBState *musb;
  34     QEMUTimer *otg_timer;
  35     QEMUTimer *pwr_timer;
  36
  37     int power;
  38     uint32_t scratch;
  39     uint16_t test_reset;
  40     uint32_t prcm_config;
  41     uint32_t prcm_mngmt;
  42     uint16_t otg_status;
  43     uint32_t dev_config;
  44     int host_mode;
  45     uint32_t intr;
  46     uint32_t intr_ok;
  47     uint32_t mask;
  48     uint32_t usbip_intr;
  49     uint32_t usbip_mask;
  50     uint32_t gpio_intr;
  51     uint32_t gpio_mask;
  52     uint32_t gpio_config;
  53     uint32_t dma_intr;
  54     uint32_t dma_mask;
  55     uint32_t dma_map;
  56     uint32_t dma_config;
  57     uint32_t ep0_config;
  58     uint32_t rx_config[15];
  59     uint32_t tx_config[15];
  60     uint32_t wkup_mask;
  61     uint32_t pullup[2];
  62     uint32_t control_config;
  63     uint32_t otg_timer_val;
  64 } TUSBState;
  65
  66 #define TUSB_DEVCLOCK                   60000000        /* 60 MHz */
  67
  68 #define TUSB_VLYNQ_CTRL                 0x004
  69
  70 /* Mentor Graphics OTG core registers.  */
  71 #define TUSB_BASE_OFFSET                0x400
  72
  73 /* FIFO registers, 32-bit.  */
  74 #define TUSB_FIFO_BASE                  0x600
  75
  76 /* Device System & Control registers, 32-bit.  */
  77 #define TUSB_SYS_REG_BASE               0x800
  78
  79 #define TUSB_DEV_CONF                   (TUSB_SYS_REG_BASE + 0x000)
  80 #define TUSB_DEV_CONF_USB_HOST_MODE     (1 << 16)
  81 #define TUSB_DEV_CONF_PROD_TEST_MODE    (1 << 15)
  82 #define TUSB_DEV_CONF_SOFT_ID           (1 << 1)
  83 #define TUSB_DEV_CONF_ID_SEL            (1 << 0)
  84
  85 #define TUSB_PHY_OTG_CTRL_ENABLE        (TUSB_SYS_REG_BASE + 0x004)
  86 #define TUSB_PHY_OTG_CTRL               (TUSB_SYS_REG_BASE + 0x008)
  87 #define TUSB_PHY_OTG_CTRL_WRPROTECT     (0xa5 << 24)
  88 #define TUSB_PHY_OTG_CTRL_O_ID_PULLUP   (1 << 23)
  89 #define TUSB_PHY_OTG_CTRL_O_VBUS_DET_EN (1 << 19)
  90 #define TUSB_PHY_OTG_CTRL_O_SESS_END_EN (1 << 18)
  91 #define TUSB_PHY_OTG_CTRL_TESTM2        (1 << 17)
  92 #define TUSB_PHY_OTG_CTRL_TESTM1        (1 << 16)
  93 #define TUSB_PHY_OTG_CTRL_TESTM0        (1 << 15)
  94 #define TUSB_PHY_OTG_CTRL_TX_DATA2      (1 << 14)
  95 #define TUSB_PHY_OTG_CTRL_TX_GZ2        (1 << 13)
  96 #define TUSB_PHY_OTG_CTRL_TX_ENABLE2    (1 << 12)
  97 #define TUSB_PHY_OTG_CTRL_DM_PULLDOWN   (1 << 11)
  98 #define TUSB_PHY_OTG_CTRL_DP_PULLDOWN   (1 << 10)
  99 #define TUSB_PHY_OTG_CTRL_OSC_EN        (1 << 9)
 100 #define TUSB_PHY_OTG_CTRL_PHYREF_CLK(v) (((v) & 3) << 7)
 101 #define TUSB_PHY_OTG_CTRL_PD            (1 << 6)
 102 #define TUSB_PHY_OTG_CTRL_PLL_ON        (1 << 5)
 103 #define TUSB_PHY_OTG_CTRL_EXT_RPU       (1 << 4)
 104 #define TUSB_PHY_OTG_CTRL_PWR_GOOD      (1 << 3)
 105 #define TUSB_PHY_OTG_CTRL_RESET         (1 << 2)
 106 #define TUSB_PHY_OTG_CTRL_SUSPENDM      (1 << 1)
 107 #define TUSB_PHY_OTG_CTRL_CLK_MODE      (1 << 0)
 108
 109 /* OTG status register */
 110 #define TUSB_DEV_OTG_STAT               (TUSB_SYS_REG_BASE + 0x00c)
 111 #define TUSB_DEV_OTG_STAT_PWR_CLK_GOOD  (1 << 8)
 112 #define TUSB_DEV_OTG_STAT_SESS_END      (1 << 7)
 113 #define TUSB_DEV_OTG_STAT_SESS_VALID    (1 << 6)
 114 #define TUSB_DEV_OTG_STAT_VBUS_VALID    (1 << 5)
 115 #define TUSB_DEV_OTG_STAT_VBUS_SENSE    (1 << 4)
 116 #define TUSB_DEV_OTG_STAT_ID_STATUS     (1 << 3)
 117 #define TUSB_DEV_OTG_STAT_HOST_DISCON   (1 << 2)
 118 #define TUSB_DEV_OTG_STAT_LINE_STATE    (3 << 0)
 119 #define TUSB_DEV_OTG_STAT_DP_ENABLE     (1 << 1)
 120 #define TUSB_DEV_OTG_STAT_DM_ENABLE     (1 << 0)
 121
 122 #define TUSB_DEV_OTG_TIMER              (TUSB_SYS_REG_BASE + 0x010)
 123 #define TUSB_DEV_OTG_TIMER_ENABLE       (1 << 31)
 124 #define TUSB_DEV_OTG_TIMER_VAL(v)       ((v) & 0x07ffffff)
 125 #define TUSB_PRCM_REV                   (TUSB_SYS_REG_BASE + 0x014)
 126
 127 /* PRCM configuration register */
 128 #define TUSB_PRCM_CONF                  (TUSB_SYS_REG_BASE + 0x018)
 129 #define TUSB_PRCM_CONF_SFW_CPEN         (1 << 24)
 130 #define TUSB_PRCM_CONF_SYS_CLKSEL(v)    (((v) & 3) << 16)
 131
 132 /* PRCM management register */
 133 #define TUSB_PRCM_MNGMT                 (TUSB_SYS_REG_BASE + 0x01c)
 134 #define TUSB_PRCM_MNGMT_SRP_FIX_TMR(v)  (((v) & 0xf) << 25)
 135 #define TUSB_PRCM_MNGMT_SRP_FIX_EN      (1 << 24)
 136 #define TUSB_PRCM_MNGMT_VBUS_VAL_TMR(v) (((v) & 0xf) << 20)
 137 #define TUSB_PRCM_MNGMT_VBUS_VAL_FLT_EN (1 << 19)
 138 #define TUSB_PRCM_MNGMT_DFT_CLK_DIS     (1 << 18)
 139 #define TUSB_PRCM_MNGMT_VLYNQ_CLK_DIS   (1 << 17)
 140 #define TUSB_PRCM_MNGMT_OTG_SESS_END_EN (1 << 10)
 141 #define TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN (1 << 9)
 142 #define TUSB_PRCM_MNGMT_OTG_ID_PULLUP   (1 << 8)
 143 #define TUSB_PRCM_MNGMT_15_SW_EN        (1 << 4)
 144 #define TUSB_PRCM_MNGMT_33_SW_EN        (1 << 3)
 145 #define TUSB_PRCM_MNGMT_5V_CPEN         (1 << 2)
 146 #define TUSB_PRCM_MNGMT_PM_IDLE         (1 << 1)
 147 #define TUSB_PRCM_MNGMT_DEV_IDLE        (1 << 0)
 148
 149 /* Wake-up source clear and mask registers */
 150 #define TUSB_PRCM_WAKEUP_SOURCE         (TUSB_SYS_REG_BASE + 0x020)
 151 #define TUSB_PRCM_WAKEUP_CLEAR          (TUSB_SYS_REG_BASE + 0x028)
 152 #define TUSB_PRCM_WAKEUP_MASK           (TUSB_SYS_REG_BASE + 0x02c)
 153 #define TUSB_PRCM_WAKEUP_RESERVED_BITS  (0xffffe << 13)
 154 #define TUSB_PRCM_WGPIO_7               (1 << 12)
 155 #define TUSB_PRCM_WGPIO_6               (1 << 11)
 156 #define TUSB_PRCM_WGPIO_5               (1 << 10)
 157 #define TUSB_PRCM_WGPIO_4               (1 << 9)
 158 #define TUSB_PRCM_WGPIO_3               (1 << 8)
 159 #define TUSB_PRCM_WGPIO_2               (1 << 7)
 160 #define TUSB_PRCM_WGPIO_1               (1 << 6)
 161 #define TUSB_PRCM_WGPIO_0               (1 << 5)
 162 #define TUSB_PRCM_WHOSTDISCON           (1 << 4)        /* Host disconnect */
 163 #define TUSB_PRCM_WBUS                  (1 << 3)        /* USB bus resume */
 164 #define TUSB_PRCM_WNORCS                (1 << 2)        /* NOR chip select */
 165 #define TUSB_PRCM_WVBUS                 (1 << 1)        /* OTG PHY VBUS */
 166 #define TUSB_PRCM_WID                   (1 << 0)        /* OTG PHY ID detect */
 167
 168 #define TUSB_PULLUP_1_CTRL              (TUSB_SYS_REG_BASE + 0x030)
 169 #define TUSB_PULLUP_2_CTRL              (TUSB_SYS_REG_BASE + 0x034)
 170 #define TUSB_INT_CTRL_REV               (TUSB_SYS_REG_BASE + 0x038)
 171 #define TUSB_INT_CTRL_CONF              (TUSB_SYS_REG_BASE + 0x03c)
 172 #define TUSB_USBIP_INT_SRC              (TUSB_SYS_REG_BASE + 0x040)
 173 #define TUSB_USBIP_INT_SET              (TUSB_SYS_REG_BASE + 0x044)
 174 #define TUSB_USBIP_INT_CLEAR            (TUSB_SYS_REG_BASE + 0x048)
 175 #define TUSB_USBIP_INT_MASK             (TUSB_SYS_REG_BASE + 0x04c)
 176 #define TUSB_DMA_INT_SRC                (TUSB_SYS_REG_BASE + 0x050)
 177 #define TUSB_DMA_INT_SET                (TUSB_SYS_REG_BASE + 0x054)
 178 #define TUSB_DMA_INT_CLEAR              (TUSB_SYS_REG_BASE + 0x058)
 179 #define TUSB_DMA_INT_MASK               (TUSB_SYS_REG_BASE + 0x05c)
 180 #define TUSB_GPIO_INT_SRC               (TUSB_SYS_REG_BASE + 0x060)
 181 #define TUSB_GPIO_INT_SET               (TUSB_SYS_REG_BASE + 0x064)
 182 #define TUSB_GPIO_INT_CLEAR             (TUSB_SYS_REG_BASE + 0x068)
 183 #define TUSB_GPIO_INT_MASK              (TUSB_SYS_REG_BASE + 0x06c)
 184
 185 /* NOR flash interrupt source registers */
 186 #define TUSB_INT_SRC                    (TUSB_SYS_REG_BASE + 0x070)
 187 #define TUSB_INT_SRC_SET                (TUSB_SYS_REG_BASE + 0x074)
 188 #define TUSB_INT_SRC_CLEAR              (TUSB_SYS_REG_BASE + 0x078)
 189 #define TUSB_INT_MASK                   (TUSB_SYS_REG_BASE + 0x07c)
 190 #define TUSB_INT_SRC_TXRX_DMA_DONE      (1 << 24)
 191 #define TUSB_INT_SRC_USB_IP_CORE        (1 << 17)
 192 #define TUSB_INT_SRC_OTG_TIMEOUT        (1 << 16)
 193 #define TUSB_INT_SRC_VBUS_SENSE_CHNG    (1 << 15)
 194 #define TUSB_INT_SRC_ID_STATUS_CHNG     (1 << 14)
 195 #define TUSB_INT_SRC_DEV_WAKEUP         (1 << 13)
 196 #define TUSB_INT_SRC_DEV_READY          (1 << 12)
 197 #define TUSB_INT_SRC_USB_IP_TX          (1 << 9)
 198 #define TUSB_INT_SRC_USB_IP_RX          (1 << 8)
 199 #define TUSB_INT_SRC_USB_IP_VBUS_ERR    (1 << 7)
 200 #define TUSB_INT_SRC_USB_IP_VBUS_REQ    (1 << 6)
 201 #define TUSB_INT_SRC_USB_IP_DISCON      (1 << 5)
 202 #define TUSB_INT_SRC_USB_IP_CONN        (1 << 4)
 203 #define TUSB_INT_SRC_USB_IP_SOF         (1 << 3)
 204 #define TUSB_INT_SRC_USB_IP_RST_BABBLE  (1 << 2)
 205 #define TUSB_INT_SRC_USB_IP_RESUME      (1 << 1)
 206 #define TUSB_INT_SRC_USB_IP_SUSPEND     (1 << 0)
 207
 208 #define TUSB_GPIO_REV                   (TUSB_SYS_REG_BASE + 0x080)
 209 #define TUSB_GPIO_CONF                  (TUSB_SYS_REG_BASE + 0x084)
 210 #define TUSB_DMA_CTRL_REV               (TUSB_SYS_REG_BASE + 0x100)
 211 #define TUSB_DMA_REQ_CONF               (TUSB_SYS_REG_BASE + 0x104)
 212 #define TUSB_EP0_CONF                   (TUSB_SYS_REG_BASE + 0x108)
 213 #define TUSB_EP_IN_SIZE                 (TUSB_SYS_REG_BASE + 0x10c)
 214 #define TUSB_DMA_EP_MAP                 (TUSB_SYS_REG_BASE + 0x148)
 215 #define TUSB_EP_OUT_SIZE                (TUSB_SYS_REG_BASE + 0x14c)
 216 #define TUSB_EP_MAX_PACKET_SIZE_OFFSET  (TUSB_SYS_REG_BASE + 0x188)
 217 #define TUSB_SCRATCH_PAD                (TUSB_SYS_REG_BASE + 0x1c4)
 218 #define TUSB_WAIT_COUNT                 (TUSB_SYS_REG_BASE + 0x1c8)
 219 #define TUSB_PROD_TEST_RESET            (TUSB_SYS_REG_BASE + 0x1d8)
 220
 221 #define TUSB_DIDR1_LO                   (TUSB_SYS_REG_BASE + 0x1f8)
 222 #define TUSB_DIDR1_HI                   (TUSB_SYS_REG_BASE + 0x1fc)
 223
 224 /* Device System & Control register bitfields */
 225 #define TUSB_INT_CTRL_CONF_INT_RLCYC(v) (((v) & 0x7) << 18)
 226 #define TUSB_INT_CTRL_CONF_INT_POLARITY (1 << 17)
 227 #define TUSB_INT_CTRL_CONF_INT_MODE     (1 << 16)
 228 #define TUSB_GPIO_CONF_DMAREQ(v)        (((v) & 0x3f) << 24)
 229 #define TUSB_DMA_REQ_CONF_BURST_SIZE(v) (((v) & 3) << 26)
 230 #define TUSB_DMA_REQ_CONF_DMA_RQ_EN(v)  (((v) & 0x3f) << 20)
 231 #define TUSB_DMA_REQ_CONF_DMA_RQ_ASR(v) (((v) & 0xf) << 16)
 232 #define TUSB_EP0_CONFIG_SW_EN           (1 << 8)
 233 #define TUSB_EP0_CONFIG_DIR_TX          (1 << 7)
 234 #define TUSB_EP0_CONFIG_XFR_SIZE(v)     ((v) & 0x7f)
 235 #define TUSB_EP_CONFIG_SW_EN            (1 << 31)
 236 #define TUSB_EP_CONFIG_XFR_SIZE(v)      ((v) & 0x7fffffff)
 237 #define TUSB_PROD_TEST_RESET_VAL        0xa596
 238
 239 static void tusb_intr_update(TUSBState *s)
 240 {
 241     if (s->control_config & TUSB_INT_CTRL_CONF_INT_POLARITY)
 242         qemu_set_irq(s->irq, s->intr & ~s->mask & s->intr_ok);
 243     else
 244         qemu_set_irq(s->irq, (!(s->intr & ~s->mask)) & s->intr_ok);
 245 }
 246
 247 static void tusb_usbip_intr_update(TUSBState *s)
 248 {
 249     /* TX interrupt in the MUSB */
 250     if (s->usbip_intr & 0x0000ffff & ~s->usbip_mask)
 251         s->intr |= TUSB_INT_SRC_USB_IP_TX;
 252     else
 253         s->intr &= ~TUSB_INT_SRC_USB_IP_TX;
 254
 255     /* RX interrupt in the MUSB */
 256     if (s->usbip_intr & 0xffff0000 & ~s->usbip_mask)
 257         s->intr |= TUSB_INT_SRC_USB_IP_RX;
 258     else
 259         s->intr &= ~TUSB_INT_SRC_USB_IP_RX;
 260
 261     /* XXX: What about TUSB_INT_SRC_USB_IP_CORE?  */
 262
 263     tusb_intr_update(s);
 264 }
 265
 266 static void tusb_dma_intr_update(TUSBState *s)
 267 {
 268     if (s->dma_intr & ~s->dma_mask)
 269         s->intr |= TUSB_INT_SRC_TXRX_DMA_DONE;
 270     else
 271         s->intr &= ~TUSB_INT_SRC_TXRX_DMA_DONE;
 272
 273     tusb_intr_update(s);
 274 }
 275
 276 static void tusb_gpio_intr_update(TUSBState *s)
 277 {
 278     /* TODO: How is this signalled?  */
 279 }
 280
 281 extern CPUReadMemoryFunc * const musb_read[];
 282 extern CPUWriteMemoryFunc * const musb_write[];
 283
 284 static uint32_t tusb_async_readb(void *opaque, target_phys_addr_t addr)
 285 {
 286     TUSBState *s = (TUSBState *) opaque;
 287
 288     switch (addr & 0xfff) {
 289     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 290         return musb_read[0](s->musb, addr & 0x1ff);
 291
 292     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 293         return musb_read[0](s->musb, 0x20 + ((addr >> 3) & 0x3c));
 294     }
 295
 296     printf("%s: unknown register at %03x\n",
 297                     __FUNCTION__, (int) (addr & 0xfff));
 298     return 0;
 299 }
 300
 301 static uint32_t tusb_async_readh(void *opaque, target_phys_addr_t addr)
 302 {
 303     TUSBState *s = (TUSBState *) opaque;
 304
 305     switch (addr & 0xfff) {
 306     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 307         return musb_read[1](s->musb, addr & 0x1ff);
 308
 309     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 310         return musb_read[1](s->musb, 0x20 + ((addr >> 3) & 0x3c));
 311     }
 312
 313     printf("%s: unknown register at %03x\n",
 314                     __FUNCTION__, (int) (addr & 0xfff));
 315     return 0;
 316 }
 317
 318 static uint32_t tusb_async_readw(void *opaque, target_phys_addr_t addr)
 319 {
 320     TUSBState *s = (TUSBState *) opaque;
 321     int offset = addr & 0xfff;
 322     int epnum;
 323     uint32_t ret;
 324
 325     switch (offset) {
 326     case TUSB_DEV_CONF:
 327         return s->dev_config;
 328
 329     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 330         return musb_read[2](s->musb, offset & 0x1ff);
 331
 332     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 333         return musb_read[2](s->musb, 0x20 + ((addr >> 3) & 0x3c));
 334
 335     case TUSB_PHY_OTG_CTRL_ENABLE:
 336     case TUSB_PHY_OTG_CTRL:
 337         return 0x00;    /* TODO */
 338
 339     case TUSB_DEV_OTG_STAT:
 340         ret = s->otg_status;
 341 #if 0
 342         if (!(s->prcm_mngmt & TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN))
 343             ret &= ~TUSB_DEV_OTG_STAT_VBUS_VALID;
 344 #endif
 345         return ret;
 346     case TUSB_DEV_OTG_TIMER:
 347         return s->otg_timer_val;
 348
 349     case TUSB_PRCM_REV:
 350         return 0x20;
 351     case TUSB_PRCM_CONF:
 352         return s->prcm_config;
 353     case TUSB_PRCM_MNGMT:
 354         return s->prcm_mngmt;
 355     case TUSB_PRCM_WAKEUP_SOURCE:
 356     case TUSB_PRCM_WAKEUP_CLEAR:        /* TODO: What does this one return?  */
 357         return 0x00000000;
 358     case TUSB_PRCM_WAKEUP_MASK:
 359         return s->wkup_mask;
 360
 361     case TUSB_PULLUP_1_CTRL:
 362         return s->pullup[0];
 363     case TUSB_PULLUP_2_CTRL:
 364         return s->pullup[1];
 365
 366     case TUSB_INT_CTRL_REV:
 367         return 0x20;
 368     case TUSB_INT_CTRL_CONF:
 369         return s->control_config;
 370
 371     case TUSB_USBIP_INT_SRC:
 372     case TUSB_USBIP_INT_SET:    /* TODO: What do these two return?  */
 373     case TUSB_USBIP_INT_CLEAR:
 374         return s->usbip_intr;
 375     case TUSB_USBIP_INT_MASK:
 376         return s->usbip_mask;
 377
 378     case TUSB_DMA_INT_SRC:
 379     case TUSB_DMA_INT_SET:      /* TODO: What do these two return?  */
 380     case TUSB_DMA_INT_CLEAR:
 381         return s->dma_intr;
 382     case TUSB_DMA_INT_MASK:
 383         return s->dma_mask;
 384
 385     case TUSB_GPIO_INT_SRC:     /* TODO: What do these two return?  */
 386     case TUSB_GPIO_INT_SET:
 387     case TUSB_GPIO_INT_CLEAR:
 388         return s->gpio_intr;
 389     case TUSB_GPIO_INT_MASK:
 390         return s->gpio_mask;
 391
 392     case TUSB_INT_SRC:
 393     case TUSB_INT_SRC_SET:      /* TODO: What do these two return?  */
 394     case TUSB_INT_SRC_CLEAR:
 395         return s->intr;
 396     case TUSB_INT_MASK:
 397         return s->mask;
 398
 399     case TUSB_GPIO_REV:
 400         return 0x30;
 401     case TUSB_GPIO_CONF:
 402         return s->gpio_config;
 403
 404     case TUSB_DMA_CTRL_REV:
 405         return 0x30;
 406     case TUSB_DMA_REQ_CONF:
 407         return s->dma_config;
 408     case TUSB_EP0_CONF:
 409         return s->ep0_config;
 410     case TUSB_EP_IN_SIZE ... (TUSB_EP_IN_SIZE + 0x3b):
 411         epnum = (offset - TUSB_EP_IN_SIZE) >> 2;
 412         return s->tx_config[epnum];
 413     case TUSB_DMA_EP_MAP:
 414         return s->dma_map;
 415     case TUSB_EP_OUT_SIZE ... (TUSB_EP_OUT_SIZE + 0x3b):
 416         epnum = (offset - TUSB_EP_OUT_SIZE) >> 2;
 417         return s->rx_config[epnum];
 418     case TUSB_EP_MAX_PACKET_SIZE_OFFSET ...
 419             (TUSB_EP_MAX_PACKET_SIZE_OFFSET + 0x3b):
 420         return 0x00000000;      /* TODO */
 421     case TUSB_WAIT_COUNT:
 422         return 0x00;            /* TODO */
 423
 424     case TUSB_SCRATCH_PAD:
 425         return s->scratch;
 426
 427     case TUSB_PROD_TEST_RESET:
 428         return s->test_reset;
 429
 430     /* DIE IDs */
 431     case TUSB_DIDR1_LO:
 432         return 0xa9453c59;
 433     case TUSB_DIDR1_HI:
 434         return 0x54059adf;
 435     }
 436
 437     printf("%s: unknown register at %03x\n", __FUNCTION__, offset);
 438     return 0;
 439 }
 440
 441 static void tusb_async_writeb(void *opaque, target_phys_addr_t addr,
 442                 uint32_t value)
 443 {
 444     TUSBState *s = (TUSBState *) opaque;
 445
 446     switch (addr & 0xfff) {
 447     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 448         musb_write[0](s->musb, addr & 0x1ff, value);
 449         break;
 450
 451     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 452         musb_write[0](s->musb, 0x20 + ((addr >> 3) & 0x3c), value);
 453         break;
 454
 455     default:
 456         printf("%s: unknown register at %03x\n",
 457                         __FUNCTION__, (int) (addr & 0xfff));
 458         return;
 459     }
 460 }
 461
 462 static void tusb_async_writeh(void *opaque, target_phys_addr_t addr,
 463                 uint32_t value)
 464 {
 465     TUSBState *s = (TUSBState *) opaque;
 466
 467     switch (addr & 0xfff) {
 468     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 469         musb_write[1](s->musb, addr & 0x1ff, value);
 470         break;
 471
 472     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 473         musb_write[1](s->musb, 0x20 + ((addr >> 3) & 0x3c), value);
 474         break;
 475
 476     default:
 477         printf("%s: unknown register at %03x\n",
 478                         __FUNCTION__, (int) (addr & 0xfff));
 479         return;
 480     }
 481 }
 482
 483 static void tusb_async_writew(void *opaque, target_phys_addr_t addr,
 484                 uint32_t value)
 485 {
 486     TUSBState *s = (TUSBState *) opaque;
 487     int offset = addr & 0xfff;
 488     int epnum;
 489
 490     switch (offset) {
 491     case TUSB_VLYNQ_CTRL:
 492         break;
 493
 494     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 495         musb_write[2](s->musb, offset & 0x1ff, value);
 496         break;
 497
 498     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 499         musb_write[2](s->musb, 0x20 + ((addr >> 3) & 0x3c), value);
 500         break;
 501
 502     case TUSB_DEV_CONF:
 503         s->dev_config = value;
 504         s->host_mode = (value & TUSB_DEV_CONF_USB_HOST_MODE);
 505         if (value & TUSB_DEV_CONF_PROD_TEST_MODE)
 506             hw_error("%s: Product Test mode not allowed\n", __FUNCTION__);
 507         break;
 508
 509     case TUSB_PHY_OTG_CTRL_ENABLE:
 510     case TUSB_PHY_OTG_CTRL:
 511         return;         /* TODO */
 512     case TUSB_DEV_OTG_TIMER:
 513         s->otg_timer_val = value;
 514         if (value & TUSB_DEV_OTG_TIMER_ENABLE)
 515             qemu_mod_timer(s->otg_timer, qemu_get_clock_ns(vm_clock) +
 516                             muldiv64(TUSB_DEV_OTG_TIMER_VAL(value),
 517                                      get_ticks_per_sec(), TUSB_DEVCLOCK));
 518         else
 519             qemu_del_timer(s->otg_timer);
 520         break;
 521
 522     case TUSB_PRCM_CONF:
 523         s->prcm_config = value;
 524         break;
 525     case TUSB_PRCM_MNGMT:
 526         s->prcm_mngmt = value;
 527         break;
 528     case TUSB_PRCM_WAKEUP_CLEAR:
 529         break;
 530     case TUSB_PRCM_WAKEUP_MASK:
 531         s->wkup_mask = value;
 532         break;
 533
 534     case TUSB_PULLUP_1_CTRL:
 535         s->pullup[0] = value;
 536         break;
 537     case TUSB_PULLUP_2_CTRL:
 538         s->pullup[1] = value;
 539         break;
 540     case TUSB_INT_CTRL_CONF:
 541         s->control_config = value;
 542         tusb_intr_update(s);
 543         break;
 544
 545     case TUSB_USBIP_INT_SET:
 546         s->usbip_intr |= value;
 547         tusb_usbip_intr_update(s);
 548         break;
 549     case TUSB_USBIP_INT_CLEAR:
 550         s->usbip_intr &= ~value;
 551         tusb_usbip_intr_update(s);
 552         musb_core_intr_clear(s->musb, ~value);
 553         break;
 554     case TUSB_USBIP_INT_MASK:
 555         s->usbip_mask = value;
 556         tusb_usbip_intr_update(s);
 557         break;
 558
 559     case TUSB_DMA_INT_SET:
 560         s->dma_intr |= value;
 561         tusb_dma_intr_update(s);
 562         break;
 563     case TUSB_DMA_INT_CLEAR:
 564         s->dma_intr &= ~value;
 565         tusb_dma_intr_update(s);
 566         break;
 567     case TUSB_DMA_INT_MASK:
 568         s->dma_mask = value;
 569         tusb_dma_intr_update(s);
 570         break;
 571
 572     case TUSB_GPIO_INT_SET:
 573         s->gpio_intr |= value;
 574         tusb_gpio_intr_update(s);
 575         break;
 576     case TUSB_GPIO_INT_CLEAR:
 577         s->gpio_intr &= ~value;
 578         tusb_gpio_intr_update(s);
 579         break;
 580     case TUSB_GPIO_INT_MASK:
 581         s->gpio_mask = value;
 582         tusb_gpio_intr_update(s);
 583         break;
 584
 585     case TUSB_INT_SRC_SET:
 586         s->intr |= value;
 587         tusb_intr_update(s);
 588         break;
 589     case TUSB_INT_SRC_CLEAR:
 590         s->intr &= ~value;
 591         tusb_intr_update(s);
 592         break;
 593     case TUSB_INT_MASK:
 594         s->mask = value;
 595         tusb_intr_update(s);
 596         break;
 597
 598     case TUSB_GPIO_CONF:
 599         s->gpio_config = value;
 600         break;
 601     case TUSB_DMA_REQ_CONF:
 602         s->dma_config = value;
 603         break;
 604     case TUSB_EP0_CONF:
 605         s->ep0_config = value & 0x1ff;
 606         musb_set_size(s->musb, 0, TUSB_EP0_CONFIG_XFR_SIZE(value),
 607                         value & TUSB_EP0_CONFIG_DIR_TX);
 608         break;
 609     case TUSB_EP_IN_SIZE ... (TUSB_EP_IN_SIZE + 0x3b):
 610         epnum = (offset - TUSB_EP_IN_SIZE) >> 2;
 611         s->tx_config[epnum] = value;
 612         musb_set_size(s->musb, epnum + 1, TUSB_EP_CONFIG_XFR_SIZE(value), 1);
 613         break;
 614     case TUSB_DMA_EP_MAP:
 615         s->dma_map = value;
 616         break;
 617     case TUSB_EP_OUT_SIZE ... (TUSB_EP_OUT_SIZE + 0x3b):
 618         epnum = (offset - TUSB_EP_OUT_SIZE) >> 2;
 619         s->rx_config[epnum] = value;
 620         musb_set_size(s->musb, epnum + 1, TUSB_EP_CONFIG_XFR_SIZE(value), 0);
 621         break;
 622     case TUSB_EP_MAX_PACKET_SIZE_OFFSET ...
 623             (TUSB_EP_MAX_PACKET_SIZE_OFFSET + 0x3b):
 624         return;         /* TODO */
 625     case TUSB_WAIT_COUNT:
 626         return;         /* TODO */
 627
 628     case TUSB_SCRATCH_PAD:
 629         s->scratch = value;
 630         break;
 631
 632     case TUSB_PROD_TEST_RESET:
 633         s->test_reset = value;
 634         break;
 635
 636     default:
 637         printf("%s: unknown register at %03x\n", __FUNCTION__, offset);
 638         return;
 639     }
 640 }
 641
 642 static const MemoryRegionOps tusb_async_ops = {
 643     .old_mmio = {
 644         .read = { tusb_async_readb, tusb_async_readh, tusb_async_readw, },
 645         .write =  { tusb_async_writeb, tusb_async_writeh, tusb_async_writew, },
 646     },
 647     .endianness = DEVICE_NATIVE_ENDIAN,
 648 };
 649
 650 static void tusb_otg_tick(void *opaque)
 651 {
 652     TUSBState *s = (TUSBState *) opaque;
 653
 654     s->otg_timer_val = 0;
 655     s->intr |= TUSB_INT_SRC_OTG_TIMEOUT;
 656     tusb_intr_update(s);
 657 }
 658
 659 static void tusb_power_tick(void *opaque)
 660 {
 661     TUSBState *s = (TUSBState *) opaque;
 662
 663     if (s->power) {
 664         s->intr_ok = ~0;
 665         tusb_intr_update(s);
 666     }
 667 }
 668
 669 static void tusb_musb_core_intr(void *opaque, int source, int level)
 670 {
 671     TUSBState *s = (TUSBState *) opaque;
 672     uint16_t otg_status = s->otg_status;
 673
 674     switch (source) {
 675     case musb_set_vbus:
 676         if (level)
 677             otg_status |= TUSB_DEV_OTG_STAT_VBUS_VALID;
 678         else
 679             otg_status &= ~TUSB_DEV_OTG_STAT_VBUS_VALID;
 680
 681         /* XXX: only if TUSB_PHY_OTG_CTRL_OTG_VBUS_DET_EN set?  */
 682         /* XXX: only if TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN set?  */
 683         if (s->otg_status != otg_status) {
 684             s->otg_status = otg_status;
 685             s->intr |= TUSB_INT_SRC_VBUS_SENSE_CHNG;
 686             tusb_intr_update(s);
 687         }
 688         break;
 689
 690     case musb_set_session:
 691         /* XXX: only if TUSB_PHY_OTG_CTRL_OTG_SESS_END_EN set?  */
 692         /* XXX: only if TUSB_PRCM_MNGMT_OTG_SESS_END_EN set?  */
 693         if (level) {
 694             s->otg_status |= TUSB_DEV_OTG_STAT_SESS_VALID;
 695             s->otg_status &= ~TUSB_DEV_OTG_STAT_SESS_END;
 696         } else {
 697             s->otg_status &= ~TUSB_DEV_OTG_STAT_SESS_VALID;
 698             s->otg_status |= TUSB_DEV_OTG_STAT_SESS_END;
 699         }
 700
 701         /* XXX: some IRQ or anything?  */
 702         break;
 703
 704     case musb_irq_tx:
 705     case musb_irq_rx:
 706         s->usbip_intr = musb_core_intr_get(s->musb);
 707         /* Fall through.  */
 708     default:
 709         if (level)
 710             s->intr |= 1 << source;
 711         else
 712             s->intr &= ~(1 << source);
 713         tusb_intr_update(s);
 714         break;
 715     }
 716 }
 717
 718 static void tusb6010_power(TUSBState *s, int on)
 719 {
 720     if (!on) {
 721         s->power = 0;
 722     } else if (!s->power && on) {
 723         s->power = 1;
 724         /* Pull the interrupt down after TUSB6010 comes up.  */
 725         s->intr_ok = 0;
 726         tusb_intr_update(s);
 727         qemu_mod_timer(s->pwr_timer,
 728                        qemu_get_clock_ns(vm_clock) + get_ticks_per_sec() / 2);
 729     }
 730 }
 731
 732 static void tusb6010_irq(void *opaque, int source, int level)
 733 {
 734     if (source) {
 735         tusb_musb_core_intr(opaque, source - 1, level);
 736     } else {
 737         tusb6010_power(opaque, level);
 738     }
 739 }
 740
 741 static void tusb6010_reset(DeviceState *dev)
 742 {
 743     TUSBState *s = FROM_SYSBUS(TUSBState, sysbus_from_qdev(dev));
 744     int i;
 745
 746     s->test_reset = TUSB_PROD_TEST_RESET_VAL;
 747     s->host_mode = 0;
 748     s->dev_config = 0;
 749     s->otg_status = 0;  /* !TUSB_DEV_OTG_STAT_ID_STATUS means host mode */
 750     s->power = 0;
 751     s->mask = 0xffffffff;
 752     s->intr = 0x00000000;
 753     s->otg_timer_val = 0;
 754     s->scratch = 0;
 755     s->prcm_config = 0;
 756     s->prcm_mngmt = 0;
 757     s->intr_ok = 0;
 758     s->usbip_intr = 0;
 759     s->usbip_mask = 0;
 760     s->gpio_intr = 0;
 761     s->gpio_mask = 0;
 762     s->gpio_config = 0;
 763     s->dma_intr = 0;
 764     s->dma_mask = 0;
 765     s->dma_map = 0;
 766     s->dma_config = 0;
 767     s->ep0_config = 0;
 768     s->wkup_mask = 0;
 769     s->pullup[0] = s->pullup[1] = 0;
 770     s->control_config = 0;
 771     for (i = 0; i < 15; i++) {
 772         s->rx_config[i] = s->tx_config[i] = 0;
 773     }
 774     musb_reset(s->musb);
 775 }
 776
 777 static int tusb6010_init(SysBusDevice *dev)
 778 {
 779     TUSBState *s = FROM_SYSBUS(TUSBState, dev);
 780     s->otg_timer = qemu_new_timer_ns(vm_clock, tusb_otg_tick, s);
 781     s->pwr_timer = qemu_new_timer_ns(vm_clock, tusb_power_tick, s);
 782     memory_region_init_io(&s->iomem[1], &tusb_async_ops, s, "tusb-async",
 783                           UINT32_MAX);
 784     sysbus_init_mmio(dev, &s->iomem[0]);
 785     sysbus_init_mmio(dev, &s->iomem[1]);
 786     sysbus_init_irq(dev, &s->irq);
 787     qdev_init_gpio_in(&dev->qdev, tusb6010_irq, musb_irq_max + 1);
 788     s->musb = musb_init(&dev->qdev, 1);
 789     return 0;
 790 }
 791
 792 static void tusb6010_class_init(ObjectClass *klass, void *data)
 793 {
 794     DeviceClass *dc = DEVICE_CLASS(klass);
 795     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 796
 797     k->init = tusb6010_init;
 798     dc->reset = tusb6010_reset;
 799 }
 800
 801 static TypeInfo tusb6010_info = {
 802     .name          = "tusb6010",
 803     .parent        = TYPE_SYS_BUS_DEVICE,
 804     .instance_size = sizeof(TUSBState),
 805     .class_init    = tusb6010_class_init,
 806 };
 807
 808 static void tusb6010_register_types(void)
 809 {
 810     type_register_static(&tusb6010_info);
 811 }
 812
 813 type_init(tusb6010_register_types)