/* * Texas Instruments TUSB6010 emulation. * Based on reverse-engineering of a linux driver. * * Copyright (C) 2008 Nokia Corporation * Written by Andrzej Zaborowski <andrew@openedhand.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 or * (at your option) version 3 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, see <http://www.gnu.org/licenses/>. */ #include "qemu-common.h" #include "qemu-timer.h" #include "usb.h" #include "omap.h" #include "irq.h" #include "devices.h" #include "sysbus.h" typedef struct TUSBState { SysBusDevice busdev; MemoryRegion iomem[2]; qemu_irq irq; MUSBState *musb; QEMUTimer *otg_timer; QEMUTimer *pwr_timer; int power; uint32_t scratch; uint16_t test_reset; uint32_t prcm_config; uint32_t prcm_mngmt; uint16_t otg_status; uint32_t dev_config; int host_mode; uint32_t intr; uint32_t intr_ok; uint32_t mask; uint32_t usbip_intr; uint32_t usbip_mask; uint32_t gpio_intr; uint32_t gpio_mask; uint32_t gpio_config; uint32_t dma_intr; uint32_t dma_mask; uint32_t dma_map; uint32_t dma_config; uint32_t ep0_config; uint32_t rx_config[15]; uint32_t tx_config[15]; uint32_t wkup_mask; uint32_t pullup[2]; uint32_t control_config; uint32_t otg_timer_val; } TUSBState; #define TUSB_DEVCLOCK 60000000 /* 60 MHz */ #define TUSB_VLYNQ_CTRL 0x004 /* Mentor Graphics OTG core registers. */ #define TUSB_BASE_OFFSET 0x400 /* FIFO registers, 32-bit. */ #define TUSB_FIFO_BASE 0x600 /* Device System & Control registers, 32-bit. */ #define TUSB_SYS_REG_BASE 0x800 #define TUSB_DEV_CONF (TUSB_SYS_REG_BASE + 0x000) #define TUSB_DEV_CONF_USB_HOST_MODE (1 << 16) #define TUSB_DEV_CONF_PROD_TEST_MODE (1 << 15) #define TUSB_DEV_CONF_SOFT_ID (1 << 1) #define TUSB_DEV_CONF_ID_SEL (1 << 0) #define TUSB_PHY_OTG_CTRL_ENABLE (TUSB_SYS_REG_BASE + 0x004) #define TUSB_PHY_OTG_CTRL (TUSB_SYS_REG_BASE + 0x008) #define TUSB_PHY_OTG_CTRL_WRPROTECT (0xa5 << 24) #define TUSB_PHY_OTG_CTRL_O_ID_PULLUP (1 << 23) #define TUSB_PHY_OTG_CTRL_O_VBUS_DET_EN (1 << 19) #define TUSB_PHY_OTG_CTRL_O_SESS_END_EN (1 << 18) #define TUSB_PHY_OTG_CTRL_TESTM2 (1 << 17) #define TUSB_PHY_OTG_CTRL_TESTM1 (1 << 16) #define TUSB_PHY_OTG_CTRL_TESTM0 (1 << 15) #define TUSB_PHY_OTG_CTRL_TX_DATA2 (1 << 14) #define TUSB_PHY_OTG_CTRL_TX_GZ2 (1 << 13) #define TUSB_PHY_OTG_CTRL_TX_ENABLE2 (1 << 12) #define TUSB_PHY_OTG_CTRL_DM_PULLDOWN (1 << 11) #define TUSB_PHY_OTG_CTRL_DP_PULLDOWN (1 << 10) #define TUSB_PHY_OTG_CTRL_OSC_EN (1 << 9) #define TUSB_PHY_OTG_CTRL_PHYREF_CLK(v) (((v) & 3) << 7) #define TUSB_PHY_OTG_CTRL_PD (1 << 6) #define TUSB_PHY_OTG_CTRL_PLL_ON (1 << 5) #define TUSB_PHY_OTG_CTRL_EXT_RPU (1 << 4) #define TUSB_PHY_OTG_CTRL_PWR_GOOD (1 << 3) #define TUSB_PHY_OTG_CTRL_RESET (1 << 2) #define TUSB_PHY_OTG_CTRL_SUSPENDM (1 << 1) #define TUSB_PHY_OTG_CTRL_CLK_MODE (1 << 0) /* OTG status register */ #define TUSB_DEV_OTG_STAT (TUSB_SYS_REG_BASE + 0x00c) #define TUSB_DEV_OTG_STAT_PWR_CLK_GOOD (1 << 8) #define TUSB_DEV_OTG_STAT_SESS_END (1 << 7) #define TUSB_DEV_OTG_STAT_SESS_VALID (1 << 6) #define TUSB_DEV_OTG_STAT_VBUS_VALID (1 << 5) #define TUSB_DEV_OTG_STAT_VBUS_SENSE (1 << 4) #define TUSB_DEV_OTG_STAT_ID_STATUS (1 << 3) #define TUSB_DEV_OTG_STAT_HOST_DISCON (1 << 2) #define TUSB_DEV_OTG_STAT_LINE_STATE (3 << 0) #define TUSB_DEV_OTG_STAT_DP_ENABLE (1 << 1) #define TUSB_DEV_OTG_STAT_DM_ENABLE (1 << 0) #define TUSB_DEV_OTG_TIMER (TUSB_SYS_REG_BASE + 0x010) #define TUSB_DEV_OTG_TIMER_ENABLE (1 << 31) #define TUSB_DEV_OTG_TIMER_VAL(v) ((v) & 0x07ffffff) #define TUSB_PRCM_REV (TUSB_SYS_REG_BASE + 0x014) /* PRCM configuration register */ #define TUSB_PRCM_CONF (TUSB_SYS_REG_BASE + 0x018) #define TUSB_PRCM_CONF_SFW_CPEN (1 << 24) #define TUSB_PRCM_CONF_SYS_CLKSEL(v) (((v) & 3) << 16) /* PRCM management register */ #define TUSB_PRCM_MNGMT (TUSB_SYS_REG_BASE + 0x01c) #define TUSB_PRCM_MNGMT_SRP_FIX_TMR(v) (((v) & 0xf) << 25) #define TUSB_PRCM_MNGMT_SRP_FIX_EN (1 << 24) #define TUSB_PRCM_MNGMT_VBUS_VAL_TMR(v) (((v) & 0xf) << 20) #define TUSB_PRCM_MNGMT_VBUS_VAL_FLT_EN (1 << 19) #define TUSB_PRCM_MNGMT_DFT_CLK_DIS (1 << 18) #define TUSB_PRCM_MNGMT_VLYNQ_CLK_DIS (1 << 17) #define TUSB_PRCM_MNGMT_OTG_SESS_END_EN (1 << 10) #define TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN (1 << 9) #define TUSB_PRCM_MNGMT_OTG_ID_PULLUP (1 << 8) #define TUSB_PRCM_MNGMT_15_SW_EN (1 << 4) #define TUSB_PRCM_MNGMT_33_SW_EN (1 << 3) #define TUSB_PRCM_MNGMT_5V_CPEN (1 << 2) #define TUSB_PRCM_MNGMT_PM_IDLE (1 << 1) #define TUSB_PRCM_MNGMT_DEV_IDLE (1 << 0) /* Wake-up source clear and mask registers */ #define TUSB_PRCM_WAKEUP_SOURCE (TUSB_SYS_REG_BASE + 0x020) #define TUSB_PRCM_WAKEUP_CLEAR (TUSB_SYS_REG_BASE + 0x028) #define TUSB_PRCM_WAKEUP_MASK (TUSB_SYS_REG_BASE + 0x02c) #define TUSB_PRCM_WAKEUP_RESERVED_BITS (0xffffe << 13) #define TUSB_PRCM_WGPIO_7 (1 << 12) #define TUSB_PRCM_WGPIO_6 (1 << 11) #define TUSB_PRCM_WGPIO_5 (1 << 10) #define TUSB_PRCM_WGPIO_4 (1 << 9) #define TUSB_PRCM_WGPIO_3 (1 << 8) #define TUSB_PRCM_WGPIO_2 (1 << 7) #define TUSB_PRCM_WGPIO_1 (1 << 6) #define TUSB_PRCM_WGPIO_0 (1 << 5) #define TUSB_PRCM_WHOSTDISCON (1 << 4) /* Host disconnect */ #define TUSB_PRCM_WBUS (1 << 3) /* USB bus resume */ #define TUSB_PRCM_WNORCS (1 << 2) /* NOR chip select */ #define TUSB_PRCM_WVBUS (1 << 1) /* OTG PHY VBUS */ #define TUSB_PRCM_WID (1 << 0) /* OTG PHY ID detect */ #define TUSB_PULLUP_1_CTRL (TUSB_SYS_REG_BASE + 0x030) #define TUSB_PULLUP_2_CTRL (TUSB_SYS_REG_BASE + 0x034) #define TUSB_INT_CTRL_REV (TUSB_SYS_REG_BASE + 0x038) #define TUSB_INT_CTRL_CONF (TUSB_SYS_REG_BASE + 0x03c) #define TUSB_USBIP_INT_SRC (TUSB_SYS_REG_BASE + 0x040) #define TUSB_USBIP_INT_SET (TUSB_SYS_REG_BASE + 0x044) #define TUSB_USBIP_INT_CLEAR (TUSB_SYS_REG_BASE + 0x048) #define TUSB_USBIP_INT_MASK (TUSB_SYS_REG_BASE + 0x04c) #define TUSB_DMA_INT_SRC (TUSB_SYS_REG_BASE + 0x050) #define TUSB_DMA_INT_SET (TUSB_SYS_REG_BASE + 0x054) #define TUSB_DMA_INT_CLEAR (TUSB_SYS_REG_BASE + 0x058) #define TUSB_DMA_INT_MASK (TUSB_SYS_REG_BASE + 0x05c) #define TUSB_GPIO_INT_SRC (TUSB_SYS_REG_BASE + 0x060) #define TUSB_GPIO_INT_SET (TUSB_SYS_REG_BASE + 0x064) #define TUSB_GPIO_INT_CLEAR (TUSB_SYS_REG_BASE + 0x068) #define TUSB_GPIO_INT_MASK (TUSB_SYS_REG_BASE + 0x06c) /* NOR flash interrupt source registers */ #define TUSB_INT_SRC (TUSB_SYS_REG_BASE + 0x070) #define TUSB_INT_SRC_SET (TUSB_SYS_REG_BASE + 0x074) #define TUSB_INT_SRC_CLEAR (TUSB_SYS_REG_BASE + 0x078) #define TUSB_INT_MASK (TUSB_SYS_REG_BASE + 0x07c) #define TUSB_INT_SRC_TXRX_DMA_DONE (1 << 24) #define TUSB_INT_SRC_USB_IP_CORE (1 << 17) #define TUSB_INT_SRC_OTG_TIMEOUT (1 << 16) #define TUSB_INT_SRC_VBUS_SENSE_CHNG (1 << 15) #define TUSB_INT_SRC_ID_STATUS_CHNG (1 << 14) #define TUSB_INT_SRC_DEV_WAKEUP (1 << 13) #define TUSB_INT_SRC_DEV_READY (1 << 12) #define TUSB_INT_SRC_USB_IP_TX (1 << 9) #define TUSB_INT_SRC_USB_IP_RX (1 << 8) #define TUSB_INT_SRC_USB_IP_VBUS_ERR (1 << 7) #define TUSB_INT_SRC_USB_IP_VBUS_REQ (1 << 6) #define TUSB_INT_SRC_USB_IP_DISCON (1 << 5) #define TUSB_INT_SRC_USB_IP_CONN (1 << 4) #define TUSB_INT_SRC_USB_IP_SOF (1 << 3) #define TUSB_INT_SRC_USB_IP_RST_BABBLE (1 << 2) #define TUSB_INT_SRC_USB_IP_RESUME (1 << 1) #define TUSB_INT_SRC_USB_IP_SUSPEND (1 << 0) #define TUSB_GPIO_REV (TUSB_SYS_REG_BASE + 0x080) #define TUSB_GPIO_CONF (TUSB_SYS_REG_BASE + 0x084) #define TUSB_DMA_CTRL_REV (TUSB_SYS_REG_BASE + 0x100) #define TUSB_DMA_REQ_CONF (TUSB_SYS_REG_BASE + 0x104) #define TUSB_EP0_CONF (TUSB_SYS_REG_BASE + 0x108) #define TUSB_EP_IN_SIZE (TUSB_SYS_REG_BASE + 0x10c) #define TUSB_DMA_EP_MAP (TUSB_SYS_REG_BASE + 0x148) #define TUSB_EP_OUT_SIZE (TUSB_SYS_REG_BASE + 0x14c) #define TUSB_EP_MAX_PACKET_SIZE_OFFSET (TUSB_SYS_REG_BASE + 0x188) #define TUSB_SCRATCH_PAD (TUSB_SYS_REG_BASE + 0x1c4) #define TUSB_WAIT_COUNT (TUSB_SYS_REG_BASE + 0x1c8) #define TUSB_PROD_TEST_RESET (TUSB_SYS_REG_BASE + 0x1d8) #define TUSB_DIDR1_LO (TUSB_SYS_REG_BASE + 0x1f8) #define TUSB_DIDR1_HI (TUSB_SYS_REG_BASE + 0x1fc) /* Device System & Control register bitfields */ #define TUSB_INT_CTRL_CONF_INT_RLCYC(v) (((v) & 0x7) << 18) #define TUSB_INT_CTRL_CONF_INT_POLARITY (1 << 17) #define TUSB_INT_CTRL_CONF_INT_MODE (1 << 16) #define TUSB_GPIO_CONF_DMAREQ(v) (((v) & 0x3f) << 24) #define TUSB_DMA_REQ_CONF_BURST_SIZE(v) (((v) & 3) << 26) #define TUSB_DMA_REQ_CONF_DMA_RQ_EN(v) (((v) & 0x3f) << 20) #define TUSB_DMA_REQ_CONF_DMA_RQ_ASR(v) (((v) & 0xf) << 16) #define TUSB_EP0_CONFIG_SW_EN (1 << 8) #define TUSB_EP0_CONFIG_DIR_TX (1 << 7) #define TUSB_EP0_CONFIG_XFR_SIZE(v) ((v) & 0x7f) #define TUSB_EP_CONFIG_SW_EN (1 << 31) #define TUSB_EP_CONFIG_XFR_SIZE(v) ((v) & 0x7fffffff) #define TUSB_PROD_TEST_RESET_VAL 0xa596 static void tusb_intr_update(TUSBState *s) { if (s->control_config & TUSB_INT_CTRL_CONF_INT_POLARITY) qemu_set_irq(s->irq, s->intr & ~s->mask & s->intr_ok); else qemu_set_irq(s->irq, (!(s->intr & ~s->mask)) & s->intr_ok); } static void tusb_usbip_intr_update(TUSBState *s) { /* TX interrupt in the MUSB */ if (s->usbip_intr & 0x0000ffff & ~s->usbip_mask) s->intr |= TUSB_INT_SRC_USB_IP_TX; else s->intr &= ~TUSB_INT_SRC_USB_IP_TX; /* RX interrupt in the MUSB */ if (s->usbip_intr & 0xffff0000 & ~s->usbip_mask) s->intr |= TUSB_INT_SRC_USB_IP_RX; else s->intr &= ~TUSB_INT_SRC_USB_IP_RX; /* XXX: What about TUSB_INT_SRC_USB_IP_CORE? */ tusb_intr_update(s); } static void tusb_dma_intr_update(TUSBState *s) { if (s->dma_intr & ~s->dma_mask) s->intr |= TUSB_INT_SRC_TXRX_DMA_DONE; else s->intr &= ~TUSB_INT_SRC_TXRX_DMA_DONE; tusb_intr_update(s); } static void tusb_gpio_intr_update(TUSBState *s) { /* TODO: How is this signalled? */ } extern CPUReadMemoryFunc * const musb_read[]; extern CPUWriteMemoryFunc * const musb_write[]; static uint32_t tusb_async_readb(void *opaque, target_phys_addr_t addr) { TUSBState *s = (TUSBState *) opaque; switch (addr & 0xfff) { case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff): return musb_read[0](s->musb, addr & 0x1ff); case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff): return musb_read[0](s->musb, 0x20 + ((addr >> 3) & 0x3c)); } printf("%s: unknown register at %03x\n", __FUNCTION__, (int) (addr & 0xfff)); return 0; } static uint32_t tusb_async_readh(void *opaque, target_phys_addr_t addr) { TUSBState *s = (TUSBState *) opaque; switch (addr & 0xfff) { case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff): return musb_read[1](s->musb, addr & 0x1ff); case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff): return musb_read[1](s->musb, 0x20 + ((addr >> 3) & 0x3c)); } printf("%s: unknown register at %03x\n", __FUNCTION__, (int) (addr & 0xfff)); return 0; } static uint32_t tusb_async_readw(void *opaque, target_phys_addr_t addr) { TUSBState *s = (TUSBState *) opaque; int offset = addr & 0xfff; int epnum; uint32_t ret; switch (offset) { case TUSB_DEV_CONF: return s->dev_config; case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff): return musb_read[2](s->musb, offset & 0x1ff); case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff): return musb_read[2](s->musb, 0x20 + ((addr >> 3) & 0x3c)); case TUSB_PHY_OTG_CTRL_ENABLE: case TUSB_PHY_OTG_CTRL: return 0x00; /* TODO */ case TUSB_DEV_OTG_STAT: ret = s->otg_status; #if 0 if (!(s->prcm_mngmt & TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN)) ret &= ~TUSB_DEV_OTG_STAT_VBUS_VALID; #endif return ret; case TUSB_DEV_OTG_TIMER: return s->otg_timer_val; case TUSB_PRCM_REV: return 0x20; case TUSB_PRCM_CONF: return s->prcm_config; case TUSB_PRCM_MNGMT: return s->prcm_mngmt; case TUSB_PRCM_WAKEUP_SOURCE: case TUSB_PRCM_WAKEUP_CLEAR: /* TODO: What does this one return? */ return 0x00000000; case TUSB_PRCM_WAKEUP_MASK: return s->wkup_mask; case TUSB_PULLUP_1_CTRL: return s->pullup[0]; case TUSB_PULLUP_2_CTRL: return s->pullup[1]; case TUSB_INT_CTRL_REV: return 0x20; case TUSB_INT_CTRL_CONF: return s->control_config; case TUSB_USBIP_INT_SRC: case TUSB_USBIP_INT_SET: /* TODO: What do these two return? */ case TUSB_USBIP_INT_CLEAR: return s->usbip_intr; case TUSB_USBIP_INT_MASK: return s->usbip_mask; case TUSB_DMA_INT_SRC: case TUSB_DMA_INT_SET: /* TODO: What do these two return? */ case TUSB_DMA_INT_CLEAR: return s->dma_intr; case TUSB_DMA_INT_MASK: return s->dma_mask; case TUSB_GPIO_INT_SRC: /* TODO: What do these two return? */ case TUSB_GPIO_INT_SET: case TUSB_GPIO_INT_CLEAR: return s->gpio_intr; case TUSB_GPIO_INT_MASK: return s->gpio_mask; case TUSB_INT_SRC: case TUSB_INT_SRC_SET: /* TODO: What do these two return? */ case TUSB_INT_SRC_CLEAR: return s->intr; case TUSB_INT_MASK: return s->mask; case TUSB_GPIO_REV: return 0x30; case TUSB_GPIO_CONF: return s->gpio_config; case TUSB_DMA_CTRL_REV: return 0x30; case TUSB_DMA_REQ_CONF: return s->dma_config; case TUSB_EP0_CONF: return s->ep0_config; case TUSB_EP_IN_SIZE ... (TUSB_EP_IN_SIZE + 0x3b): epnum = (offset - TUSB_EP_IN_SIZE) >> 2; return s->tx_config[epnum]; case TUSB_DMA_EP_MAP: return s->dma_map; case TUSB_EP_OUT_SIZE ... (TUSB_EP_OUT_SIZE + 0x3b): epnum = (offset - TUSB_EP_OUT_SIZE) >> 2; return s->rx_config[epnum]; case TUSB_EP_MAX_PACKET_SIZE_OFFSET ... (TUSB_EP_MAX_PACKET_SIZE_OFFSET + 0x3b): return 0x00000000; /* TODO */ case TUSB_WAIT_COUNT: return 0x00; /* TODO */ case TUSB_SCRATCH_PAD: return s->scratch; case TUSB_PROD_TEST_RESET: return s->test_reset; /* DIE IDs */ case TUSB_DIDR1_LO: return 0xa9453c59; case TUSB_DIDR1_HI: return 0x54059adf; } printf("%s: unknown register at %03x\n", __FUNCTION__, offset); return 0; } static void tusb_async_writeb(void *opaque, target_phys_addr_t addr, uint32_t value) { TUSBState *s = (TUSBState *) opaque; switch (addr & 0xfff) { case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff): musb_write[0](s->musb, addr & 0x1ff, value); break; case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff): musb_write[0](s->musb, 0x20 + ((addr >> 3) & 0x3c), value); break; default: printf("%s: unknown register at %03x\n", __FUNCTION__, (int) (addr & 0xfff)); return; } } static void tusb_async_writeh(void *opaque, target_phys_addr_t addr, uint32_t value) { TUSBState *s = (TUSBState *) opaque; switch (addr & 0xfff) { case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff): musb_write[1](s->musb, addr & 0x1ff, value); break; case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff): musb_write[1](s->musb, 0x20 + ((addr >> 3) & 0x3c), value); break; default: printf("%s: unknown register at %03x\n", __FUNCTION__, (int) (addr & 0xfff)); return; } } static void tusb_async_writew(void *opaque, target_phys_addr_t addr, uint32_t value) { TUSBState *s = (TUSBState *) opaque; int offset = addr & 0xfff; int epnum; switch (offset) { case TUSB_VLYNQ_CTRL: break; case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff): musb_write[2](s->musb, offset & 0x1ff, value); break; case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff): musb_write[2](s->musb, 0x20 + ((addr >> 3) & 0x3c), value); break; case TUSB_DEV_CONF: s->dev_config = value; s->host_mode = (value & TUSB_DEV_CONF_USB_HOST_MODE); if (value & TUSB_DEV_CONF_PROD_TEST_MODE) hw_error("%s: Product Test mode not allowed\n", __FUNCTION__); break; case TUSB_PHY_OTG_CTRL_ENABLE: case TUSB_PHY_OTG_CTRL: return; /* TODO */ case TUSB_DEV_OTG_TIMER: s->otg_timer_val = value; if (value & TUSB_DEV_OTG_TIMER_ENABLE) qemu_mod_timer(s->otg_timer, qemu_get_clock_ns(vm_clock) + muldiv64(TUSB_DEV_OTG_TIMER_VAL(value), get_ticks_per_sec(), TUSB_DEVCLOCK)); else qemu_del_timer(s->otg_timer); break; case TUSB_PRCM_CONF: s->prcm_config = value; break; case TUSB_PRCM_MNGMT: s->prcm_mngmt = value; break; case TUSB_PRCM_WAKEUP_CLEAR: break; case TUSB_PRCM_WAKEUP_MASK: s->wkup_mask = value; break; case TUSB_PULLUP_1_CTRL: s->pullup[0] = value; break; case TUSB_PULLUP_2_CTRL: s->pullup[1] = value; break; case TUSB_INT_CTRL_CONF: s->control_config = value; tusb_intr_update(s); break; case TUSB_USBIP_INT_SET: s->usbip_intr |= value; tusb_usbip_intr_update(s); break; case TUSB_USBIP_INT_CLEAR: s->usbip_intr &= ~value; tusb_usbip_intr_update(s); musb_core_intr_clear(s->musb, ~value); break; case TUSB_USBIP_INT_MASK: s->usbip_mask = value; tusb_usbip_intr_update(s); break; case TUSB_DMA_INT_SET: s->dma_intr |= value; tusb_dma_intr_update(s); break; case TUSB_DMA_INT_CLEAR: s->dma_intr &= ~value; tusb_dma_intr_update(s); break; case TUSB_DMA_INT_MASK: s->dma_mask = value; tusb_dma_intr_update(s); break; case TUSB_GPIO_INT_SET: s->gpio_intr |= value; tusb_gpio_intr_update(s); break; case TUSB_GPIO_INT_CLEAR: s->gpio_intr &= ~value; tusb_gpio_intr_update(s); break; case TUSB_GPIO_INT_MASK: s->gpio_mask = value; tusb_gpio_intr_update(s); break; case TUSB_INT_SRC_SET: s->intr |= value; tusb_intr_update(s); break; case TUSB_INT_SRC_CLEAR: s->intr &= ~value; tusb_intr_update(s); break; case TUSB_INT_MASK: s->mask = value; tusb_intr_update(s); break; case TUSB_GPIO_CONF: s->gpio_config = value; break; case TUSB_DMA_REQ_CONF: s->dma_config = value; break; case TUSB_EP0_CONF: s->ep0_config = value & 0x1ff; musb_set_size(s->musb, 0, TUSB_EP0_CONFIG_XFR_SIZE(value), value & TUSB_EP0_CONFIG_DIR_TX); break; case TUSB_EP_IN_SIZE ... (TUSB_EP_IN_SIZE + 0x3b): epnum = (offset - TUSB_EP_IN_SIZE) >> 2; s->tx_config[epnum] = value; musb_set_size(s->musb, epnum + 1, TUSB_EP_CONFIG_XFR_SIZE(value), 1); break; case TUSB_DMA_EP_MAP: s->dma_map = value; break; case TUSB_EP_OUT_SIZE ... (TUSB_EP_OUT_SIZE + 0x3b): epnum = (offset - TUSB_EP_OUT_SIZE) >> 2; s->rx_config[epnum] = value; musb_set_size(s->musb, epnum + 1, TUSB_EP_CONFIG_XFR_SIZE(value), 0); break; case TUSB_EP_MAX_PACKET_SIZE_OFFSET ... (TUSB_EP_MAX_PACKET_SIZE_OFFSET + 0x3b): return; /* TODO */ case TUSB_WAIT_COUNT: return; /* TODO */ case TUSB_SCRATCH_PAD: s->scratch = value; break; case TUSB_PROD_TEST_RESET: s->test_reset = value; break; default: printf("%s: unknown register at %03x\n", __FUNCTION__, offset); return; } } static const MemoryRegionOps tusb_async_ops = { .old_mmio = { .read = { tusb_async_readb, tusb_async_readh, tusb_async_readw, }, .write = { tusb_async_writeb, tusb_async_writeh, tusb_async_writew, }, }, .endianness = DEVICE_NATIVE_ENDIAN, }; static void tusb_otg_tick(void *opaque) { TUSBState *s = (TUSBState *) opaque; s->otg_timer_val = 0; s->intr |= TUSB_INT_SRC_OTG_TIMEOUT; tusb_intr_update(s); } static void tusb_power_tick(void *opaque) { TUSBState *s = (TUSBState *) opaque; if (s->power) { s->intr_ok = ~0; tusb_intr_update(s); } } static void tusb_musb_core_intr(void *opaque, int source, int level) { TUSBState *s = (TUSBState *) opaque; uint16_t otg_status = s->otg_status; switch (source) { case musb_set_vbus: if (level) otg_status |= TUSB_DEV_OTG_STAT_VBUS_VALID; else otg_status &= ~TUSB_DEV_OTG_STAT_VBUS_VALID; /* XXX: only if TUSB_PHY_OTG_CTRL_OTG_VBUS_DET_EN set? */ /* XXX: only if TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN set? */ if (s->otg_status != otg_status) { s->otg_status = otg_status; s->intr |= TUSB_INT_SRC_VBUS_SENSE_CHNG; tusb_intr_update(s); } break; case musb_set_session: /* XXX: only if TUSB_PHY_OTG_CTRL_OTG_SESS_END_EN set? */ /* XXX: only if TUSB_PRCM_MNGMT_OTG_SESS_END_EN set? */ if (level) { s->otg_status |= TUSB_DEV_OTG_STAT_SESS_VALID; s->otg_status &= ~TUSB_DEV_OTG_STAT_SESS_END; } else { s->otg_status &= ~TUSB_DEV_OTG_STAT_SESS_VALID; s->otg_status |= TUSB_DEV_OTG_STAT_SESS_END; } /* XXX: some IRQ or anything? */ break; case musb_irq_tx: case musb_irq_rx: s->usbip_intr = musb_core_intr_get(s->musb); /* Fall through. */ default: if (level) s->intr |= 1 << source; else s->intr &= ~(1 << source); tusb_intr_update(s); break; } } static void tusb6010_power(TUSBState *s, int on) { if (!on) { s->power = 0; } else if (!s->power && on) { s->power = 1; /* Pull the interrupt down after TUSB6010 comes up. */ s->intr_ok = 0; tusb_intr_update(s); qemu_mod_timer(s->pwr_timer, qemu_get_clock_ns(vm_clock) + get_ticks_per_sec() / 2); } } static void tusb6010_irq(void *opaque, int source, int level) { if (source) { tusb_musb_core_intr(opaque, source - 1, level); } else { tusb6010_power(opaque, level); } } static void tusb6010_reset(DeviceState *dev) { TUSBState *s = FROM_SYSBUS(TUSBState, sysbus_from_qdev(dev)); int i; s->test_reset = TUSB_PROD_TEST_RESET_VAL; s->host_mode = 0; s->dev_config = 0; s->otg_status = 0; /* !TUSB_DEV_OTG_STAT_ID_STATUS means host mode */ s->power = 0; s->mask = 0xffffffff; s->intr = 0x00000000; s->otg_timer_val = 0; s->scratch = 0; s->prcm_config = 0; s->prcm_mngmt = 0; s->intr_ok = 0; s->usbip_intr = 0; s->usbip_mask = 0; s->gpio_intr = 0; s->gpio_mask = 0; s->gpio_config = 0; s->dma_intr = 0; s->dma_mask = 0; s->dma_map = 0; s->dma_config = 0; s->ep0_config = 0; s->wkup_mask = 0; s->pullup[0] = s->pullup[1] = 0; s->control_config = 0; for (i = 0; i < 15; i++) { s->rx_config[i] = s->tx_config[i] = 0; } musb_reset(s->musb); } static int tusb6010_init(SysBusDevice *dev) { TUSBState *s = FROM_SYSBUS(TUSBState, dev); s->otg_timer = qemu_new_timer_ns(vm_clock, tusb_otg_tick, s); s->pwr_timer = qemu_new_timer_ns(vm_clock, tusb_power_tick, s); memory_region_init_io(&s->iomem[1], &tusb_async_ops, s, "tusb-async", UINT32_MAX); sysbus_init_mmio(dev, &s->iomem[0]); sysbus_init_mmio(dev, &s->iomem[1]); sysbus_init_irq(dev, &s->irq); qdev_init_gpio_in(&dev->qdev, tusb6010_irq, musb_irq_max + 1); s->musb = musb_init(&dev->qdev, 1); return 0; } static void tusb6010_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); k->init = tusb6010_init; dc->reset = tusb6010_reset; } static TypeInfo tusb6010_info = { .name = "tusb6010", .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(TUSBState), .class_init = tusb6010_class_init, }; static void tusb6010_register_types(void) { type_register_static(&tusb6010_info); } type_init(tusb6010_register_types)