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
  28 struct TUSBState {
  29     int iomemtype[2];
  30     qemu_irq irq;
  31     MUSBState *musb;
  32     QEMUTimer *otg_timer;
  33     QEMUTimer *pwr_timer;
  34
  35     int power;
  36     uint32_t scratch;
  37     uint16_t test_reset;
  38     uint32_t prcm_config;
  39     uint32_t prcm_mngmt;
  40     uint16_t otg_status;
  41     uint32_t dev_config;
  42     int host_mode;
  43     uint32_t intr;
  44     uint32_t intr_ok;
  45     uint32_t mask;
  46     uint32_t usbip_intr;
  47     uint32_t usbip_mask;
  48     uint32_t gpio_intr;
  49     uint32_t gpio_mask;
  50     uint32_t gpio_config;
  51     uint32_t dma_intr;
  52     uint32_t dma_mask;
  53     uint32_t dma_map;
  54     uint32_t dma_config;
  55     uint32_t ep0_config;
  56     uint32_t rx_config[15];
  57     uint32_t tx_config[15];
  58     uint32_t wkup_mask;
  59     uint32_t pullup[2];
  60     uint32_t control_config;
  61     uint32_t otg_timer_val;
  62 };
  63
  64 #define TUSB_DEVCLOCK                   60000000        /* 60 MHz */
  65
  66 #define TUSB_VLYNQ_CTRL                 0x004
  67
  68 /* Mentor Graphics OTG core registers.  */
  69 #define TUSB_BASE_OFFSET                0x400
  70
  71 /* FIFO registers, 32-bit.  */
  72 #define TUSB_FIFO_BASE                  0x600
  73
  74 /* Device System & Control registers, 32-bit.  */
  75 #define TUSB_SYS_REG_BASE               0x800
  76
  77 #define TUSB_DEV_CONF                   (TUSB_SYS_REG_BASE + 0x000)
  78 #define TUSB_DEV_CONF_USB_HOST_MODE     (1 << 16)
  79 #define TUSB_DEV_CONF_PROD_TEST_MODE    (1 << 15)
  80 #define TUSB_DEV_CONF_SOFT_ID           (1 << 1)
  81 #define TUSB_DEV_CONF_ID_SEL            (1 << 0)
  82
  83 #define TUSB_PHY_OTG_CTRL_ENABLE        (TUSB_SYS_REG_BASE + 0x004)
  84 #define TUSB_PHY_OTG_CTRL               (TUSB_SYS_REG_BASE + 0x008)
  85 #define TUSB_PHY_OTG_CTRL_WRPROTECT     (0xa5 << 24)
  86 #define TUSB_PHY_OTG_CTRL_O_ID_PULLUP   (1 << 23)
  87 #define TUSB_PHY_OTG_CTRL_O_VBUS_DET_EN (1 << 19)
  88 #define TUSB_PHY_OTG_CTRL_O_SESS_END_EN (1 << 18)
  89 #define TUSB_PHY_OTG_CTRL_TESTM2        (1 << 17)
  90 #define TUSB_PHY_OTG_CTRL_TESTM1        (1 << 16)
  91 #define TUSB_PHY_OTG_CTRL_TESTM0        (1 << 15)
  92 #define TUSB_PHY_OTG_CTRL_TX_DATA2      (1 << 14)
  93 #define TUSB_PHY_OTG_CTRL_TX_GZ2        (1 << 13)
  94 #define TUSB_PHY_OTG_CTRL_TX_ENABLE2    (1 << 12)
  95 #define TUSB_PHY_OTG_CTRL_DM_PULLDOWN   (1 << 11)
  96 #define TUSB_PHY_OTG_CTRL_DP_PULLDOWN   (1 << 10)
  97 #define TUSB_PHY_OTG_CTRL_OSC_EN        (1 << 9)
  98 #define TUSB_PHY_OTG_CTRL_PHYREF_CLK(v) (((v) & 3) << 7)
  99 #define TUSB_PHY_OTG_CTRL_PD            (1 << 6)
 100 #define TUSB_PHY_OTG_CTRL_PLL_ON        (1 << 5)
 101 #define TUSB_PHY_OTG_CTRL_EXT_RPU       (1 << 4)
 102 #define TUSB_PHY_OTG_CTRL_PWR_GOOD      (1 << 3)
 103 #define TUSB_PHY_OTG_CTRL_RESET         (1 << 2)
 104 #define TUSB_PHY_OTG_CTRL_SUSPENDM      (1 << 1)
 105 #define TUSB_PHY_OTG_CTRL_CLK_MODE      (1 << 0)
 106
 107 /* OTG status register */
 108 #define TUSB_DEV_OTG_STAT               (TUSB_SYS_REG_BASE + 0x00c)
 109 #define TUSB_DEV_OTG_STAT_PWR_CLK_GOOD  (1 << 8)
 110 #define TUSB_DEV_OTG_STAT_SESS_END      (1 << 7)
 111 #define TUSB_DEV_OTG_STAT_SESS_VALID    (1 << 6)
 112 #define TUSB_DEV_OTG_STAT_VBUS_VALID    (1 << 5)
 113 #define TUSB_DEV_OTG_STAT_VBUS_SENSE    (1 << 4)
 114 #define TUSB_DEV_OTG_STAT_ID_STATUS     (1 << 3)
 115 #define TUSB_DEV_OTG_STAT_HOST_DISCON   (1 << 2)
 116 #define TUSB_DEV_OTG_STAT_LINE_STATE    (3 << 0)
 117 #define TUSB_DEV_OTG_STAT_DP_ENABLE     (1 << 1)
 118 #define TUSB_DEV_OTG_STAT_DM_ENABLE     (1 << 0)
 119
 120 #define TUSB_DEV_OTG_TIMER              (TUSB_SYS_REG_BASE + 0x010)
 121 #define TUSB_DEV_OTG_TIMER_ENABLE       (1 << 31)
 122 #define TUSB_DEV_OTG_TIMER_VAL(v)       ((v) & 0x07ffffff)
 123 #define TUSB_PRCM_REV                   (TUSB_SYS_REG_BASE + 0x014)
 124
 125 /* PRCM configuration register */
 126 #define TUSB_PRCM_CONF                  (TUSB_SYS_REG_BASE + 0x018)
 127 #define TUSB_PRCM_CONF_SFW_CPEN         (1 << 24)
 128 #define TUSB_PRCM_CONF_SYS_CLKSEL(v)    (((v) & 3) << 16)
 129
 130 /* PRCM management register */
 131 #define TUSB_PRCM_MNGMT                 (TUSB_SYS_REG_BASE + 0x01c)
 132 #define TUSB_PRCM_MNGMT_SRP_FIX_TMR(v)  (((v) & 0xf) << 25)
 133 #define TUSB_PRCM_MNGMT_SRP_FIX_EN      (1 << 24)
 134 #define TUSB_PRCM_MNGMT_VBUS_VAL_TMR(v) (((v) & 0xf) << 20)
 135 #define TUSB_PRCM_MNGMT_VBUS_VAL_FLT_EN (1 << 19)
 136 #define TUSB_PRCM_MNGMT_DFT_CLK_DIS     (1 << 18)
 137 #define TUSB_PRCM_MNGMT_VLYNQ_CLK_DIS   (1 << 17)
 138 #define TUSB_PRCM_MNGMT_OTG_SESS_END_EN (1 << 10)
 139 #define TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN (1 << 9)
 140 #define TUSB_PRCM_MNGMT_OTG_ID_PULLUP   (1 << 8)
 141 #define TUSB_PRCM_MNGMT_15_SW_EN        (1 << 4)
 142 #define TUSB_PRCM_MNGMT_33_SW_EN        (1 << 3)
 143 #define TUSB_PRCM_MNGMT_5V_CPEN         (1 << 2)
 144 #define TUSB_PRCM_MNGMT_PM_IDLE         (1 << 1)
 145 #define TUSB_PRCM_MNGMT_DEV_IDLE        (1 << 0)
 146
 147 /* Wake-up source clear and mask registers */
 148 #define TUSB_PRCM_WAKEUP_SOURCE         (TUSB_SYS_REG_BASE + 0x020)
 149 #define TUSB_PRCM_WAKEUP_CLEAR          (TUSB_SYS_REG_BASE + 0x028)
 150 #define TUSB_PRCM_WAKEUP_MASK           (TUSB_SYS_REG_BASE + 0x02c)
 151 #define TUSB_PRCM_WAKEUP_RESERVED_BITS  (0xffffe << 13)
 152 #define TUSB_PRCM_WGPIO_7               (1 << 12)
 153 #define TUSB_PRCM_WGPIO_6               (1 << 11)
 154 #define TUSB_PRCM_WGPIO_5               (1 << 10)
 155 #define TUSB_PRCM_WGPIO_4               (1 << 9)
 156 #define TUSB_PRCM_WGPIO_3               (1 << 8)
 157 #define TUSB_PRCM_WGPIO_2               (1 << 7)
 158 #define TUSB_PRCM_WGPIO_1               (1 << 6)
 159 #define TUSB_PRCM_WGPIO_0               (1 << 5)
 160 #define TUSB_PRCM_WHOSTDISCON           (1 << 4)        /* Host disconnect */
 161 #define TUSB_PRCM_WBUS                  (1 << 3)        /* USB bus resume */
 162 #define TUSB_PRCM_WNORCS                (1 << 2)        /* NOR chip select */
 163 #define TUSB_PRCM_WVBUS                 (1 << 1)        /* OTG PHY VBUS */
 164 #define TUSB_PRCM_WID                   (1 << 0)        /* OTG PHY ID detect */
 165
 166 #define TUSB_PULLUP_1_CTRL              (TUSB_SYS_REG_BASE + 0x030)
 167 #define TUSB_PULLUP_2_CTRL              (TUSB_SYS_REG_BASE + 0x034)
 168 #define TUSB_INT_CTRL_REV               (TUSB_SYS_REG_BASE + 0x038)
 169 #define TUSB_INT_CTRL_CONF              (TUSB_SYS_REG_BASE + 0x03c)
 170 #define TUSB_USBIP_INT_SRC              (TUSB_SYS_REG_BASE + 0x040)
 171 #define TUSB_USBIP_INT_SET              (TUSB_SYS_REG_BASE + 0x044)
 172 #define TUSB_USBIP_INT_CLEAR            (TUSB_SYS_REG_BASE + 0x048)
 173 #define TUSB_USBIP_INT_MASK             (TUSB_SYS_REG_BASE + 0x04c)
 174 #define TUSB_DMA_INT_SRC                (TUSB_SYS_REG_BASE + 0x050)
 175 #define TUSB_DMA_INT_SET                (TUSB_SYS_REG_BASE + 0x054)
 176 #define TUSB_DMA_INT_CLEAR              (TUSB_SYS_REG_BASE + 0x058)
 177 #define TUSB_DMA_INT_MASK               (TUSB_SYS_REG_BASE + 0x05c)
 178 #define TUSB_GPIO_INT_SRC               (TUSB_SYS_REG_BASE + 0x060)
 179 #define TUSB_GPIO_INT_SET               (TUSB_SYS_REG_BASE + 0x064)
 180 #define TUSB_GPIO_INT_CLEAR             (TUSB_SYS_REG_BASE + 0x068)
 181 #define TUSB_GPIO_INT_MASK              (TUSB_SYS_REG_BASE + 0x06c)
 182
 183 /* NOR flash interrupt source registers */
 184 #define TUSB_INT_SRC                    (TUSB_SYS_REG_BASE + 0x070)
 185 #define TUSB_INT_SRC_SET                (TUSB_SYS_REG_BASE + 0x074)
 186 #define TUSB_INT_SRC_CLEAR              (TUSB_SYS_REG_BASE + 0x078)
 187 #define TUSB_INT_MASK                   (TUSB_SYS_REG_BASE + 0x07c)
 188 #define TUSB_INT_SRC_TXRX_DMA_DONE      (1 << 24)
 189 #define TUSB_INT_SRC_USB_IP_CORE        (1 << 17)
 190 #define TUSB_INT_SRC_OTG_TIMEOUT        (1 << 16)
 191 #define TUSB_INT_SRC_VBUS_SENSE_CHNG    (1 << 15)
 192 #define TUSB_INT_SRC_ID_STATUS_CHNG     (1 << 14)
 193 #define TUSB_INT_SRC_DEV_WAKEUP         (1 << 13)
 194 #define TUSB_INT_SRC_DEV_READY          (1 << 12)
 195 #define TUSB_INT_SRC_USB_IP_TX          (1 << 9)
 196 #define TUSB_INT_SRC_USB_IP_RX          (1 << 8)
 197 #define TUSB_INT_SRC_USB_IP_VBUS_ERR    (1 << 7)
 198 #define TUSB_INT_SRC_USB_IP_VBUS_REQ    (1 << 6)
 199 #define TUSB_INT_SRC_USB_IP_DISCON      (1 << 5)
 200 #define TUSB_INT_SRC_USB_IP_CONN        (1 << 4)
 201 #define TUSB_INT_SRC_USB_IP_SOF         (1 << 3)
 202 #define TUSB_INT_SRC_USB_IP_RST_BABBLE  (1 << 2)
 203 #define TUSB_INT_SRC_USB_IP_RESUME      (1 << 1)
 204 #define TUSB_INT_SRC_USB_IP_SUSPEND     (1 << 0)
 205
 206 #define TUSB_GPIO_REV                   (TUSB_SYS_REG_BASE + 0x080)
 207 #define TUSB_GPIO_CONF                  (TUSB_SYS_REG_BASE + 0x084)
 208 #define TUSB_DMA_CTRL_REV               (TUSB_SYS_REG_BASE + 0x100)
 209 #define TUSB_DMA_REQ_CONF               (TUSB_SYS_REG_BASE + 0x104)
 210 #define TUSB_EP0_CONF                   (TUSB_SYS_REG_BASE + 0x108)
 211 #define TUSB_EP_IN_SIZE                 (TUSB_SYS_REG_BASE + 0x10c)
 212 #define TUSB_DMA_EP_MAP                 (TUSB_SYS_REG_BASE + 0x148)
 213 #define TUSB_EP_OUT_SIZE                (TUSB_SYS_REG_BASE + 0x14c)
 214 #define TUSB_EP_MAX_PACKET_SIZE_OFFSET  (TUSB_SYS_REG_BASE + 0x188)
 215 #define TUSB_SCRATCH_PAD                (TUSB_SYS_REG_BASE + 0x1c4)
 216 #define TUSB_WAIT_COUNT                 (TUSB_SYS_REG_BASE + 0x1c8)
 217 #define TUSB_PROD_TEST_RESET            (TUSB_SYS_REG_BASE + 0x1d8)
 218
 219 #define TUSB_DIDR1_LO                   (TUSB_SYS_REG_BASE + 0x1f8)
 220 #define TUSB_DIDR1_HI                   (TUSB_SYS_REG_BASE + 0x1fc)
 221
 222 /* Device System & Control register bitfields */
 223 #define TUSB_INT_CTRL_CONF_INT_RLCYC(v) (((v) & 0x7) << 18)
 224 #define TUSB_INT_CTRL_CONF_INT_POLARITY (1 << 17)
 225 #define TUSB_INT_CTRL_CONF_INT_MODE     (1 << 16)
 226 #define TUSB_GPIO_CONF_DMAREQ(v)        (((v) & 0x3f) << 24)
 227 #define TUSB_DMA_REQ_CONF_BURST_SIZE(v) (((v) & 3) << 26)
 228 #define TUSB_DMA_REQ_CONF_DMA_RQ_EN(v)  (((v) & 0x3f) << 20)
 229 #define TUSB_DMA_REQ_CONF_DMA_RQ_ASR(v) (((v) & 0xf) << 16)
 230 #define TUSB_EP0_CONFIG_SW_EN           (1 << 8)
 231 #define TUSB_EP0_CONFIG_DIR_TX          (1 << 7)
 232 #define TUSB_EP0_CONFIG_XFR_SIZE(v)     ((v) & 0x7f)
 233 #define TUSB_EP_CONFIG_SW_EN            (1 << 31)
 234 #define TUSB_EP_CONFIG_XFR_SIZE(v)      ((v) & 0x7fffffff)
 235 #define TUSB_PROD_TEST_RESET_VAL        0xa596
 236
 237 int tusb6010_sync_io(TUSBState *s)
 238 {
 239     return s->iomemtype[0];
 240 }
 241
 242 int tusb6010_async_io(TUSBState *s)
 243 {
 244     return s->iomemtype[1];
 245 }
 246
 247 static void tusb_intr_update(TUSBState *s)
 248 {
 249     if (s->control_config & TUSB_INT_CTRL_CONF_INT_POLARITY)
 250         qemu_set_irq(s->irq, s->intr & ~s->mask & s->intr_ok);
 251     else
 252         qemu_set_irq(s->irq, (!(s->intr & ~s->mask)) & s->intr_ok);
 253 }
 254
 255 static void tusb_usbip_intr_update(TUSBState *s)
 256 {
 257     /* TX interrupt in the MUSB */
 258     if (s->usbip_intr & 0x0000ffff & ~s->usbip_mask)
 259         s->intr |= TUSB_INT_SRC_USB_IP_TX;
 260     else
 261         s->intr &= ~TUSB_INT_SRC_USB_IP_TX;
 262
 263     /* RX interrupt in the MUSB */
 264     if (s->usbip_intr & 0xffff0000 & ~s->usbip_mask)
 265         s->intr |= TUSB_INT_SRC_USB_IP_RX;
 266     else
 267         s->intr &= ~TUSB_INT_SRC_USB_IP_RX;
 268
 269     /* XXX: What about TUSB_INT_SRC_USB_IP_CORE?  */
 270
 271     tusb_intr_update(s);
 272 }
 273
 274 static void tusb_dma_intr_update(TUSBState *s)
 275 {
 276     if (s->dma_intr & ~s->dma_mask)
 277         s->intr |= TUSB_INT_SRC_TXRX_DMA_DONE;
 278     else
 279         s->intr &= ~TUSB_INT_SRC_TXRX_DMA_DONE;
 280
 281     tusb_intr_update(s);
 282 }
 283
 284 static void tusb_gpio_intr_update(TUSBState *s)
 285 {
 286     /* TODO: How is this signalled?  */
 287 }
 288
 289 extern CPUReadMemoryFunc * const musb_read[];
 290 extern CPUWriteMemoryFunc * const musb_write[];
 291
 292 static uint32_t tusb_async_readb(void *opaque, target_phys_addr_t addr)
 293 {
 294     TUSBState *s = (TUSBState *) opaque;
 295
 296     switch (addr & 0xfff) {
 297     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 298         return musb_read[0](s->musb, addr & 0x1ff);
 299
 300     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 301         return musb_read[0](s->musb, 0x20 + ((addr >> 3) & 0x3c));
 302     }
 303
 304     printf("%s: unknown register at %03x\n",
 305                     __FUNCTION__, (int) (addr & 0xfff));
 306     return 0;
 307 }
 308
 309 static uint32_t tusb_async_readh(void *opaque, target_phys_addr_t addr)
 310 {
 311     TUSBState *s = (TUSBState *) opaque;
 312
 313     switch (addr & 0xfff) {
 314     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 315         return musb_read[1](s->musb, addr & 0x1ff);
 316
 317     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 318         return musb_read[1](s->musb, 0x20 + ((addr >> 3) & 0x3c));
 319     }
 320
 321     printf("%s: unknown register at %03x\n",
 322                     __FUNCTION__, (int) (addr & 0xfff));
 323     return 0;
 324 }
 325
 326 static uint32_t tusb_async_readw(void *opaque, target_phys_addr_t addr)
 327 {
 328     TUSBState *s = (TUSBState *) opaque;
 329     int offset = addr & 0xfff;
 330     int epnum;
 331     uint32_t ret;
 332
 333     switch (offset) {
 334     case TUSB_DEV_CONF:
 335         return s->dev_config;
 336
 337     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 338         return musb_read[2](s->musb, offset & 0x1ff);
 339
 340     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 341         return musb_read[2](s->musb, 0x20 + ((addr >> 3) & 0x3c));
 342
 343     case TUSB_PHY_OTG_CTRL_ENABLE:
 344     case TUSB_PHY_OTG_CTRL:
 345         return 0x00;    /* TODO */
 346
 347     case TUSB_DEV_OTG_STAT:
 348         ret = s->otg_status;
 349 #if 0
 350         if (!(s->prcm_mngmt & TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN))
 351             ret &= ~TUSB_DEV_OTG_STAT_VBUS_VALID;
 352 #endif
 353         return ret;
 354     case TUSB_DEV_OTG_TIMER:
 355         return s->otg_timer_val;
 356
 357     case TUSB_PRCM_REV:
 358         return 0x20;
 359     case TUSB_PRCM_CONF:
 360         return s->prcm_config;
 361     case TUSB_PRCM_MNGMT:
 362         return s->prcm_mngmt;
 363     case TUSB_PRCM_WAKEUP_SOURCE:
 364     case TUSB_PRCM_WAKEUP_CLEAR:        /* TODO: What does this one return?  */
 365         return 0x00000000;
 366     case TUSB_PRCM_WAKEUP_MASK:
 367         return s->wkup_mask;
 368
 369     case TUSB_PULLUP_1_CTRL:
 370         return s->pullup[0];
 371     case TUSB_PULLUP_2_CTRL:
 372         return s->pullup[1];
 373
 374     case TUSB_INT_CTRL_REV:
 375         return 0x20;
 376     case TUSB_INT_CTRL_CONF:
 377         return s->control_config;
 378
 379     case TUSB_USBIP_INT_SRC:
 380     case TUSB_USBIP_INT_SET:    /* TODO: What do these two return?  */
 381     case TUSB_USBIP_INT_CLEAR:
 382         return s->usbip_intr;
 383     case TUSB_USBIP_INT_MASK:
 384         return s->usbip_mask;
 385
 386     case TUSB_DMA_INT_SRC:
 387     case TUSB_DMA_INT_SET:      /* TODO: What do these two return?  */
 388     case TUSB_DMA_INT_CLEAR:
 389         return s->dma_intr;
 390     case TUSB_DMA_INT_MASK:
 391         return s->dma_mask;
 392
 393     case TUSB_GPIO_INT_SRC:     /* TODO: What do these two return?  */
 394     case TUSB_GPIO_INT_SET:
 395     case TUSB_GPIO_INT_CLEAR:
 396         return s->gpio_intr;
 397     case TUSB_GPIO_INT_MASK:
 398         return s->gpio_mask;
 399
 400     case TUSB_INT_SRC:
 401     case TUSB_INT_SRC_SET:      /* TODO: What do these two return?  */
 402     case TUSB_INT_SRC_CLEAR:
 403         return s->intr;
 404     case TUSB_INT_MASK:
 405         return s->mask;
 406
 407     case TUSB_GPIO_REV:
 408         return 0x30;
 409     case TUSB_GPIO_CONF:
 410         return s->gpio_config;
 411
 412     case TUSB_DMA_CTRL_REV:
 413         return 0x30;
 414     case TUSB_DMA_REQ_CONF:
 415         return s->dma_config;
 416     case TUSB_EP0_CONF:
 417         return s->ep0_config;
 418     case TUSB_EP_IN_SIZE ... (TUSB_EP_IN_SIZE + 0x3b):
 419         epnum = (offset - TUSB_EP_IN_SIZE) >> 2;
 420         return s->tx_config[epnum];
 421     case TUSB_DMA_EP_MAP:
 422         return s->dma_map;
 423     case TUSB_EP_OUT_SIZE ... (TUSB_EP_OUT_SIZE + 0x3b):
 424         epnum = (offset - TUSB_EP_OUT_SIZE) >> 2;
 425         return s->rx_config[epnum];
 426     case TUSB_EP_MAX_PACKET_SIZE_OFFSET ...
 427             (TUSB_EP_MAX_PACKET_SIZE_OFFSET + 0x3b):
 428         return 0x00000000;      /* TODO */
 429     case TUSB_WAIT_COUNT:
 430         return 0x00;            /* TODO */
 431
 432     case TUSB_SCRATCH_PAD:
 433         return s->scratch;
 434
 435     case TUSB_PROD_TEST_RESET:
 436         return s->test_reset;
 437
 438     /* DIE IDs */
 439     case TUSB_DIDR1_LO:
 440         return 0xa9453c59;
 441     case TUSB_DIDR1_HI:
 442         return 0x54059adf;
 443     }
 444
 445     printf("%s: unknown register at %03x\n", __FUNCTION__, offset);
 446     return 0;
 447 }
 448
 449 static void tusb_async_writeb(void *opaque, target_phys_addr_t addr,
 450                 uint32_t value)
 451 {
 452     TUSBState *s = (TUSBState *) opaque;
 453
 454     switch (addr & 0xfff) {
 455     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 456         musb_write[0](s->musb, addr & 0x1ff, value);
 457         break;
 458
 459     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 460         musb_write[0](s->musb, 0x20 + ((addr >> 3) & 0x3c), value);
 461         break;
 462
 463     default:
 464         printf("%s: unknown register at %03x\n",
 465                         __FUNCTION__, (int) (addr & 0xfff));
 466         return;
 467     }
 468 }
 469
 470 static void tusb_async_writeh(void *opaque, target_phys_addr_t addr,
 471                 uint32_t value)
 472 {
 473     TUSBState *s = (TUSBState *) opaque;
 474
 475     switch (addr & 0xfff) {
 476     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 477         musb_write[1](s->musb, addr & 0x1ff, value);
 478         break;
 479
 480     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 481         musb_write[1](s->musb, 0x20 + ((addr >> 3) & 0x3c), value);
 482         break;
 483
 484     default:
 485         printf("%s: unknown register at %03x\n",
 486                         __FUNCTION__, (int) (addr & 0xfff));
 487         return;
 488     }
 489 }
 490
 491 static void tusb_async_writew(void *opaque, target_phys_addr_t addr,
 492                 uint32_t value)
 493 {
 494     TUSBState *s = (TUSBState *) opaque;
 495     int offset = addr & 0xfff;
 496     int epnum;
 497
 498     switch (offset) {
 499     case TUSB_VLYNQ_CTRL:
 500         break;
 501
 502     case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
 503         musb_write[2](s->musb, offset & 0x1ff, value);
 504         break;
 505
 506     case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
 507         musb_write[2](s->musb, 0x20 + ((addr >> 3) & 0x3c), value);
 508         break;
 509
 510     case TUSB_DEV_CONF:
 511         s->dev_config = value;
 512         s->host_mode = (value & TUSB_DEV_CONF_USB_HOST_MODE);
 513         if (value & TUSB_DEV_CONF_PROD_TEST_MODE)
 514             hw_error("%s: Product Test mode not allowed\n", __FUNCTION__);
 515         break;
 516
 517     case TUSB_PHY_OTG_CTRL_ENABLE:
 518     case TUSB_PHY_OTG_CTRL:
 519         return;         /* TODO */
 520     case TUSB_DEV_OTG_TIMER:
 521         s->otg_timer_val = value;
 522         if (value & TUSB_DEV_OTG_TIMER_ENABLE)
 523             qemu_mod_timer(s->otg_timer, qemu_get_clock(vm_clock) +
 524                             muldiv64(TUSB_DEV_OTG_TIMER_VAL(value),
 525                                      get_ticks_per_sec(), TUSB_DEVCLOCK));
 526         else
 527             qemu_del_timer(s->otg_timer);
 528         break;
 529
 530     case TUSB_PRCM_CONF:
 531         s->prcm_config = value;
 532         break;
 533     case TUSB_PRCM_MNGMT:
 534         s->prcm_mngmt = value;
 535         break;
 536     case TUSB_PRCM_WAKEUP_CLEAR:
 537         break;
 538     case TUSB_PRCM_WAKEUP_MASK:
 539         s->wkup_mask = value;
 540         break;
 541
 542     case TUSB_PULLUP_1_CTRL:
 543         s->pullup[0] = value;
 544         break;
 545     case TUSB_PULLUP_2_CTRL:
 546         s->pullup[1] = value;
 547         break;
 548     case TUSB_INT_CTRL_CONF:
 549         s->control_config = value;
 550         tusb_intr_update(s);
 551         break;
 552
 553     case TUSB_USBIP_INT_SET:
 554         s->usbip_intr |= value;
 555         tusb_usbip_intr_update(s);
 556         break;
 557     case TUSB_USBIP_INT_CLEAR:
 558         s->usbip_intr &= ~value;
 559         tusb_usbip_intr_update(s);
 560         musb_core_intr_clear(s->musb, ~value);
 561         break;
 562     case TUSB_USBIP_INT_MASK:
 563         s->usbip_mask = value;
 564         tusb_usbip_intr_update(s);
 565         break;
 566
 567     case TUSB_DMA_INT_SET:
 568         s->dma_intr |= value;
 569         tusb_dma_intr_update(s);
 570         break;
 571     case TUSB_DMA_INT_CLEAR:
 572         s->dma_intr &= ~value;
 573         tusb_dma_intr_update(s);
 574         break;
 575     case TUSB_DMA_INT_MASK:
 576         s->dma_mask = value;
 577         tusb_dma_intr_update(s);
 578         break;
 579
 580     case TUSB_GPIO_INT_SET:
 581         s->gpio_intr |= value;
 582         tusb_gpio_intr_update(s);
 583         break;
 584     case TUSB_GPIO_INT_CLEAR:
 585         s->gpio_intr &= ~value;
 586         tusb_gpio_intr_update(s);
 587         break;
 588     case TUSB_GPIO_INT_MASK:
 589         s->gpio_mask = value;
 590         tusb_gpio_intr_update(s);
 591         break;
 592
 593     case TUSB_INT_SRC_SET:
 594         s->intr |= value;
 595         tusb_intr_update(s);
 596         break;
 597     case TUSB_INT_SRC_CLEAR:
 598         s->intr &= ~value;
 599         tusb_intr_update(s);
 600         break;
 601     case TUSB_INT_MASK:
 602         s->mask = value;
 603         tusb_intr_update(s);
 604         break;
 605
 606     case TUSB_GPIO_CONF:
 607         s->gpio_config = value;
 608         break;
 609     case TUSB_DMA_REQ_CONF:
 610         s->dma_config = value;
 611         break;
 612     case TUSB_EP0_CONF:
 613         s->ep0_config = value & 0x1ff;
 614         musb_set_size(s->musb, 0, TUSB_EP0_CONFIG_XFR_SIZE(value),
 615                         value & TUSB_EP0_CONFIG_DIR_TX);
 616         break;
 617     case TUSB_EP_IN_SIZE ... (TUSB_EP_IN_SIZE + 0x3b):
 618         epnum = (offset - TUSB_EP_IN_SIZE) >> 2;
 619         s->tx_config[epnum] = value;
 620         musb_set_size(s->musb, epnum + 1, TUSB_EP_CONFIG_XFR_SIZE(value), 1);
 621         break;
 622     case TUSB_DMA_EP_MAP:
 623         s->dma_map = value;
 624         break;
 625     case TUSB_EP_OUT_SIZE ... (TUSB_EP_OUT_SIZE + 0x3b):
 626         epnum = (offset - TUSB_EP_OUT_SIZE) >> 2;
 627         s->rx_config[epnum] = value;
 628         musb_set_size(s->musb, epnum + 1, TUSB_EP_CONFIG_XFR_SIZE(value), 0);
 629         break;
 630     case TUSB_EP_MAX_PACKET_SIZE_OFFSET ...
 631             (TUSB_EP_MAX_PACKET_SIZE_OFFSET + 0x3b):
 632         return;         /* TODO */
 633     case TUSB_WAIT_COUNT:
 634         return;         /* TODO */
 635
 636     case TUSB_SCRATCH_PAD:
 637         s->scratch = value;
 638         break;
 639
 640     case TUSB_PROD_TEST_RESET:
 641         s->test_reset = value;
 642         break;
 643
 644     default:
 645         printf("%s: unknown register at %03x\n", __FUNCTION__, offset);
 646         return;
 647     }
 648 }
 649
 650 static CPUReadMemoryFunc * const tusb_async_readfn[] = {
 651     tusb_async_readb,
 652     tusb_async_readh,
 653     tusb_async_readw,
 654 };
 655
 656 static CPUWriteMemoryFunc * const tusb_async_writefn[] = {
 657     tusb_async_writeb,
 658     tusb_async_writeh,
 659     tusb_async_writew,
 660 };
 661
 662 static void tusb_otg_tick(void *opaque)
 663 {
 664     TUSBState *s = (TUSBState *) opaque;
 665
 666     s->otg_timer_val = 0;
 667     s->intr |= TUSB_INT_SRC_OTG_TIMEOUT;
 668     tusb_intr_update(s);
 669 }
 670
 671 static void tusb_power_tick(void *opaque)
 672 {
 673     TUSBState *s = (TUSBState *) opaque;
 674
 675     if (s->power) {
 676         s->intr_ok = ~0;
 677         tusb_intr_update(s);
 678     }
 679 }
 680
 681 static void tusb_musb_core_intr(void *opaque, int source, int level)
 682 {
 683     TUSBState *s = (TUSBState *) opaque;
 684     uint16_t otg_status = s->otg_status;
 685
 686     switch (source) {
 687     case musb_set_vbus:
 688         if (level)
 689             otg_status |= TUSB_DEV_OTG_STAT_VBUS_VALID;
 690         else
 691             otg_status &= ~TUSB_DEV_OTG_STAT_VBUS_VALID;
 692
 693         /* XXX: only if TUSB_PHY_OTG_CTRL_OTG_VBUS_DET_EN set?  */
 694         /* XXX: only if TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN set?  */
 695         if (s->otg_status != otg_status) {
 696             s->otg_status = otg_status;
 697             s->intr |= TUSB_INT_SRC_VBUS_SENSE_CHNG;
 698             tusb_intr_update(s);
 699         }
 700         break;
 701
 702     case musb_set_session:
 703         /* XXX: only if TUSB_PHY_OTG_CTRL_OTG_SESS_END_EN set?  */
 704         /* XXX: only if TUSB_PRCM_MNGMT_OTG_SESS_END_EN set?  */
 705         if (level) {
 706             s->otg_status |= TUSB_DEV_OTG_STAT_SESS_VALID;
 707             s->otg_status &= ~TUSB_DEV_OTG_STAT_SESS_END;
 708         } else {
 709             s->otg_status &= ~TUSB_DEV_OTG_STAT_SESS_VALID;
 710             s->otg_status |= TUSB_DEV_OTG_STAT_SESS_END;
 711         }
 712
 713         /* XXX: some IRQ or anything?  */
 714         break;
 715
 716     case musb_irq_tx:
 717     case musb_irq_rx:
 718         s->usbip_intr = musb_core_intr_get(s->musb);
 719         /* Fall through.  */
 720     default:
 721         if (level)
 722             s->intr |= 1 << source;
 723         else
 724             s->intr &= ~(1 << source);
 725         tusb_intr_update(s);
 726         break;
 727     }
 728 }
 729
 730 TUSBState *tusb6010_init(qemu_irq intr)
 731 {
 732     TUSBState *s = qemu_mallocz(sizeof(*s));
 733
 734     s->test_reset = TUSB_PROD_TEST_RESET_VAL;
 735     s->host_mode = 0;
 736     s->dev_config = 0;
 737     s->otg_status = 0;  /* !TUSB_DEV_OTG_STAT_ID_STATUS means host mode */
 738     s->power = 0;
 739     s->mask = 0xffffffff;
 740     s->intr = 0x00000000;
 741     s->otg_timer_val = 0;
 742     s->iomemtype[1] = cpu_register_io_memory(tusb_async_readfn,
 743                     tusb_async_writefn, s);
 744     s->irq = intr;
 745     s->otg_timer = qemu_new_timer(vm_clock, tusb_otg_tick, s);
 746     s->pwr_timer = qemu_new_timer(vm_clock, tusb_power_tick, s);
 747     s->musb = musb_init(qemu_allocate_irqs(tusb_musb_core_intr, s,
 748                             __musb_irq_max));
 749
 750     return s;
 751 }
 752
 753 void tusb6010_power(TUSBState *s, int on)
 754 {
 755     if (!on)
 756         s->power = 0;
 757     else if (!s->power && on) {
 758         s->power = 1;
 759
 760         /* Pull the interrupt down after TUSB6010 comes up.  */
 761         s->intr_ok = 0;
 762         tusb_intr_update(s);
 763         qemu_mod_timer(s->pwr_timer,
 764                        qemu_get_clock(vm_clock) + get_ticks_per_sec() / 2);
 765     }
 766 }