/*
* 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/osdep.h"
#include "qemu/module.h"
#include "qemu/timer.h"
#include "hw/usb.h"
#include "hw/usb/hcd-musb.h"
#include "hw/arm/omap.h"
#include "hw/hw.h"
#include "hw/irq.h"
#include "hw/sysbus.h"
#include "qom/object.h"
#define TYPE_TUSB6010 "tusb6010"
OBJECT_DECLARE_SIMPLE_TYPE(TUSBState, TUSB6010)
struct TUSBState {
SysBusDevice parent_obj;
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;
};
#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? */
}
static uint32_t tusb_async_readb(void *opaque, hwaddr 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",
__func__, (int) (addr & 0xfff));
return 0;
}
static uint32_t tusb_async_readh(void *opaque, hwaddr 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",
__func__, (int) (addr & 0xfff));
return 0;
}
static uint32_t tusb_async_readw(void *opaque, hwaddr 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", __func__, offset);
return 0;
}
static void tusb_async_writeb(void *opaque, hwaddr 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",
__func__, (int) (addr & 0xfff));
return;
}
}
static void tusb_async_writeh(void *opaque, hwaddr 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",
__func__, (int) (addr & 0xfff));
return;
}
}
static void tusb_async_writew(void *opaque, hwaddr 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", __func__);
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)
timer_mod(s->otg_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
muldiv64(TUSB_DEV_OTG_TIMER_VAL(value),
NANOSECONDS_PER_SECOND, TUSB_DEVCLOCK));
else
timer_del(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", __func__, offset);
return;
}
}
static uint64_t tusb_async_readfn(void *opaque, hwaddr addr, unsigned size)
{
switch (size) {
case 1:
return tusb_async_readb(opaque, addr);
case 2:
return tusb_async_readh(opaque, addr);
case 4:
return tusb_async_readw(opaque, addr);
default:
g_assert_not_reached();
}
}
static void tusb_async_writefn(void *opaque, hwaddr addr,
uint64_t value, unsigned size)
{
switch (size) {
case 1:
tusb_async_writeb(opaque, addr, value);
break;
case 2:
tusb_async_writeh(opaque, addr, value);
break;
case 4:
tusb_async_writew(opaque, addr, value);
break;
default:
g_assert_not_reached();
}
}
static const MemoryRegionOps tusb_async_ops = {
.read = tusb_async_readfn,
.write = tusb_async_writefn,
.valid.min_access_size = 1,
.valid.max_access_size = 4,
.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);
timer_mod(s->pwr_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
NANOSECONDS_PER_SECOND / 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 = TUSB6010(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 void tusb6010_realize(DeviceState *dev, Error **errp)
{
TUSBState *s = TUSB6010(dev);
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
s->otg_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, tusb_otg_tick, s);
s->pwr_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, tusb_power_tick, s);
memory_region_init_io(&s->iomem[1], OBJECT(s), &tusb_async_ops, s,
"tusb-async", UINT32_MAX);
sysbus_init_mmio(sbd, &s->iomem[0]);
sysbus_init_mmio(sbd, &s->iomem[1]);
sysbus_init_irq(sbd, &s->irq);
qdev_init_gpio_in(dev, tusb6010_irq, musb_irq_max + 1);
s->musb = musb_init(dev, 1);
}
static void tusb6010_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = tusb6010_realize;
dc->reset = tusb6010_reset;
}
static const TypeInfo tusb6010_info = {
.name = TYPE_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)
