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564 lines
17 KiB
564 lines
17 KiB
/* SPDX-License-Identifier: GPL-2.0+ */ |
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#ifndef __ASPEED_VHUB_H |
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#define __ASPEED_VHUB_H |
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#include <linux/usb.h> |
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#include <linux/usb/ch11.h> |
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/***************************** |
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* * |
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* VHUB register definitions * |
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* * |
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*****************************/ |
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#define AST_VHUB_CTRL 0x00 /* Root Function Control & Status Register */ |
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#define AST_VHUB_CONF 0x04 /* Root Configuration Setting Register */ |
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#define AST_VHUB_IER 0x08 /* Interrupt Ctrl Register */ |
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#define AST_VHUB_ISR 0x0C /* Interrupt Status Register */ |
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#define AST_VHUB_EP_ACK_IER 0x10 /* Programmable Endpoint Pool ACK Interrupt Enable Register */ |
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#define AST_VHUB_EP_NACK_IER 0x14 /* Programmable Endpoint Pool NACK Interrupt Enable Register */ |
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#define AST_VHUB_EP_ACK_ISR 0x18 /* Programmable Endpoint Pool ACK Interrupt Status Register */ |
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#define AST_VHUB_EP_NACK_ISR 0x1C /* Programmable Endpoint Pool NACK Interrupt Status Register */ |
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#define AST_VHUB_SW_RESET 0x20 /* Device Controller Soft Reset Enable Register */ |
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#define AST_VHUB_USBSTS 0x24 /* USB Status Register */ |
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#define AST_VHUB_EP_TOGGLE 0x28 /* Programmable Endpoint Pool Data Toggle Value Set */ |
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#define AST_VHUB_ISO_FAIL_ACC 0x2C /* Isochronous Transaction Fail Accumulator */ |
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#define AST_VHUB_EP0_CTRL 0x30 /* Endpoint 0 Contrl/Status Register */ |
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#define AST_VHUB_EP0_DATA 0x34 /* Base Address of Endpoint 0 In/OUT Data Buffer Register */ |
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#define AST_VHUB_EP1_CTRL 0x38 /* Endpoint 1 Contrl/Status Register */ |
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#define AST_VHUB_EP1_STS_CHG 0x3C /* Endpoint 1 Status Change Bitmap Data */ |
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#define AST_VHUB_SETUP0 0x80 /* Root Device Setup Data Buffer0 */ |
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#define AST_VHUB_SETUP1 0x84 /* Root Device Setup Data Buffer1 */ |
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/* Main control reg */ |
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#define VHUB_CTRL_PHY_CLK (1 << 31) |
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#define VHUB_CTRL_PHY_LOOP_TEST (1 << 25) |
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#define VHUB_CTRL_DN_PWN (1 << 24) |
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#define VHUB_CTRL_DP_PWN (1 << 23) |
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#define VHUB_CTRL_LONG_DESC (1 << 18) |
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#define VHUB_CTRL_ISO_RSP_CTRL (1 << 17) |
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#define VHUB_CTRL_SPLIT_IN (1 << 16) |
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#define VHUB_CTRL_LOOP_T_RESULT (1 << 15) |
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#define VHUB_CTRL_LOOP_T_STS (1 << 14) |
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#define VHUB_CTRL_PHY_BIST_RESULT (1 << 13) |
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#define VHUB_CTRL_PHY_BIST_CTRL (1 << 12) |
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#define VHUB_CTRL_PHY_RESET_DIS (1 << 11) |
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#define VHUB_CTRL_SET_TEST_MODE(x) ((x) << 8) |
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#define VHUB_CTRL_MANUAL_REMOTE_WAKEUP (1 << 4) |
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#define VHUB_CTRL_AUTO_REMOTE_WAKEUP (1 << 3) |
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#define VHUB_CTRL_CLK_STOP_SUSPEND (1 << 2) |
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#define VHUB_CTRL_FULL_SPEED_ONLY (1 << 1) |
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#define VHUB_CTRL_UPSTREAM_CONNECT (1 << 0) |
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/* IER & ISR */ |
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#define VHUB_IRQ_DEV1_BIT 9 |
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#define VHUB_IRQ_USB_CMD_DEADLOCK (1 << 18) |
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#define VHUB_IRQ_EP_POOL_NAK (1 << 17) |
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#define VHUB_IRQ_EP_POOL_ACK_STALL (1 << 16) |
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#define VHUB_IRQ_DEVICE1 (1 << (VHUB_IRQ_DEV1_BIT)) |
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#define VHUB_IRQ_BUS_RESUME (1 << 8) |
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#define VHUB_IRQ_BUS_SUSPEND (1 << 7) |
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#define VHUB_IRQ_BUS_RESET (1 << 6) |
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#define VHUB_IRQ_HUB_EP1_IN_DATA_ACK (1 << 5) |
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#define VHUB_IRQ_HUB_EP0_IN_DATA_NAK (1 << 4) |
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#define VHUB_IRQ_HUB_EP0_IN_ACK_STALL (1 << 3) |
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#define VHUB_IRQ_HUB_EP0_OUT_NAK (1 << 2) |
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#define VHUB_IRQ_HUB_EP0_OUT_ACK_STALL (1 << 1) |
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#define VHUB_IRQ_HUB_EP0_SETUP (1 << 0) |
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#define VHUB_IRQ_ACK_ALL 0x1ff |
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/* Downstream device IRQ mask. */ |
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#define VHUB_DEV_IRQ(n) (VHUB_IRQ_DEVICE1 << (n)) |
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/* SW reset reg */ |
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#define VHUB_SW_RESET_EP_POOL (1 << 9) |
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#define VHUB_SW_RESET_DMA_CONTROLLER (1 << 8) |
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#define VHUB_SW_RESET_DEVICE5 (1 << 5) |
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#define VHUB_SW_RESET_DEVICE4 (1 << 4) |
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#define VHUB_SW_RESET_DEVICE3 (1 << 3) |
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#define VHUB_SW_RESET_DEVICE2 (1 << 2) |
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#define VHUB_SW_RESET_DEVICE1 (1 << 1) |
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#define VHUB_SW_RESET_ROOT_HUB (1 << 0) |
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/* EP ACK/NACK IRQ masks */ |
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#define VHUB_EP_IRQ(n) (1 << (n)) |
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/* USB status reg */ |
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#define VHUB_USBSTS_HISPEED (1 << 27) |
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/* EP toggle */ |
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#define VHUB_EP_TOGGLE_VALUE (1 << 8) |
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#define VHUB_EP_TOGGLE_SET_EPNUM(x) ((x) & 0x1f) |
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/* HUB EP0 control */ |
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#define VHUB_EP0_CTRL_STALL (1 << 0) |
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#define VHUB_EP0_TX_BUFF_RDY (1 << 1) |
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#define VHUB_EP0_RX_BUFF_RDY (1 << 2) |
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#define VHUB_EP0_RX_LEN(x) (((x) >> 16) & 0x7f) |
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#define VHUB_EP0_SET_TX_LEN(x) (((x) & 0x7f) << 8) |
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/* HUB EP1 control */ |
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#define VHUB_EP1_CTRL_RESET_TOGGLE (1 << 2) |
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#define VHUB_EP1_CTRL_STALL (1 << 1) |
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#define VHUB_EP1_CTRL_ENABLE (1 << 0) |
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/*********************************** |
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* * |
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* per-device register definitions * |
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* * |
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***********************************/ |
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#define AST_VHUB_DEV_EN_CTRL 0x00 |
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#define AST_VHUB_DEV_ISR 0x04 |
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#define AST_VHUB_DEV_EP0_CTRL 0x08 |
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#define AST_VHUB_DEV_EP0_DATA 0x0c |
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/* Device enable control */ |
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#define VHUB_DEV_EN_SET_ADDR(x) ((x) << 8) |
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#define VHUB_DEV_EN_ADDR_MASK ((0xff) << 8) |
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#define VHUB_DEV_EN_EP0_NAK_IRQEN (1 << 6) |
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#define VHUB_DEV_EN_EP0_IN_ACK_IRQEN (1 << 5) |
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#define VHUB_DEV_EN_EP0_OUT_NAK_IRQEN (1 << 4) |
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#define VHUB_DEV_EN_EP0_OUT_ACK_IRQEN (1 << 3) |
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#define VHUB_DEV_EN_EP0_SETUP_IRQEN (1 << 2) |
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#define VHUB_DEV_EN_SPEED_SEL_HIGH (1 << 1) |
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#define VHUB_DEV_EN_ENABLE_PORT (1 << 0) |
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/* Interrupt status */ |
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#define VHUV_DEV_IRQ_EP0_IN_DATA_NACK (1 << 4) |
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#define VHUV_DEV_IRQ_EP0_IN_ACK_STALL (1 << 3) |
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#define VHUV_DEV_IRQ_EP0_OUT_DATA_NACK (1 << 2) |
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#define VHUV_DEV_IRQ_EP0_OUT_ACK_STALL (1 << 1) |
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#define VHUV_DEV_IRQ_EP0_SETUP (1 << 0) |
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/* Control bits. |
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* |
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* Note: The driver relies on the bulk of those bits |
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* matching corresponding vHub EP0 control bits |
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*/ |
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#define VHUB_DEV_EP0_CTRL_STALL VHUB_EP0_CTRL_STALL |
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#define VHUB_DEV_EP0_TX_BUFF_RDY VHUB_EP0_TX_BUFF_RDY |
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#define VHUB_DEV_EP0_RX_BUFF_RDY VHUB_EP0_RX_BUFF_RDY |
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#define VHUB_DEV_EP0_RX_LEN(x) VHUB_EP0_RX_LEN(x) |
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#define VHUB_DEV_EP0_SET_TX_LEN(x) VHUB_EP0_SET_TX_LEN(x) |
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/************************************* |
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* * |
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* per-endpoint register definitions * |
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* * |
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*************************************/ |
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#define AST_VHUB_EP_CONFIG 0x00 |
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#define AST_VHUB_EP_DMA_CTLSTAT 0x04 |
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#define AST_VHUB_EP_DESC_BASE 0x08 |
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#define AST_VHUB_EP_DESC_STATUS 0x0C |
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/* EP config reg */ |
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#define VHUB_EP_CFG_SET_MAX_PKT(x) (((x) & 0x3ff) << 16) |
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#define VHUB_EP_CFG_AUTO_DATA_DISABLE (1 << 13) |
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#define VHUB_EP_CFG_STALL_CTRL (1 << 12) |
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#define VHUB_EP_CFG_SET_EP_NUM(x) (((x) & 0xf) << 8) |
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#define VHUB_EP_CFG_SET_TYPE(x) ((x) << 5) |
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#define EP_TYPE_OFF 0 |
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#define EP_TYPE_BULK 1 |
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#define EP_TYPE_INT 2 |
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#define EP_TYPE_ISO 3 |
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#define VHUB_EP_CFG_DIR_OUT (1 << 4) |
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#define VHUB_EP_CFG_SET_DEV(x) ((x) << 1) |
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#define VHUB_EP_CFG_ENABLE (1 << 0) |
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/* EP DMA control */ |
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#define VHUB_EP_DMA_PROC_STATUS(x) (((x) >> 4) & 0xf) |
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#define EP_DMA_PROC_RX_IDLE 0 |
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#define EP_DMA_PROC_TX_IDLE 8 |
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#define VHUB_EP_DMA_IN_LONG_MODE (1 << 3) |
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#define VHUB_EP_DMA_OUT_CONTIG_MODE (1 << 3) |
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#define VHUB_EP_DMA_CTRL_RESET (1 << 2) |
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#define VHUB_EP_DMA_SINGLE_STAGE (1 << 1) |
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#define VHUB_EP_DMA_DESC_MODE (1 << 0) |
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/* EP DMA status */ |
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#define VHUB_EP_DMA_SET_TX_SIZE(x) ((x) << 16) |
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#define VHUB_EP_DMA_TX_SIZE(x) (((x) >> 16) & 0x7ff) |
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#define VHUB_EP_DMA_RPTR(x) (((x) >> 8) & 0xff) |
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#define VHUB_EP_DMA_SET_RPTR(x) (((x) & 0xff) << 8) |
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#define VHUB_EP_DMA_SET_CPU_WPTR(x) (x) |
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#define VHUB_EP_DMA_SINGLE_KICK (1 << 0) /* WPTR = 1 for single mode */ |
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/******************************* |
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* * |
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* DMA descriptors definitions * |
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* * |
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*******************************/ |
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/* Desc W1 IN */ |
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#define VHUB_DSC1_IN_INTERRUPT (1 << 31) |
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#define VHUB_DSC1_IN_SPID_DATA0 (0 << 14) |
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#define VHUB_DSC1_IN_SPID_DATA2 (1 << 14) |
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#define VHUB_DSC1_IN_SPID_DATA1 (2 << 14) |
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#define VHUB_DSC1_IN_SPID_MDATA (3 << 14) |
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#define VHUB_DSC1_IN_SET_LEN(x) ((x) & 0xfff) |
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#define VHUB_DSC1_IN_LEN(x) ((x) & 0xfff) |
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/**************************************** |
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* * |
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* Data structures and misc definitions * |
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* * |
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****************************************/ |
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/* |
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* AST_VHUB_NUM_GEN_EPs and AST_VHUB_NUM_PORTS are kept to avoid breaking |
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* existing AST2400/AST2500 platforms. AST2600 and future vhub revisions |
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* should define number of downstream ports and endpoints in device tree. |
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*/ |
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#define AST_VHUB_NUM_GEN_EPs 15 /* Generic non-0 EPs */ |
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#define AST_VHUB_NUM_PORTS 5 /* vHub ports */ |
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#define AST_VHUB_EP0_MAX_PACKET 64 /* EP0's max packet size */ |
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#define AST_VHUB_EPn_MAX_PACKET 1024 /* Generic EPs max packet size */ |
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#define AST_VHUB_DESCS_COUNT 256 /* Use 256 descriptor mode (valid |
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* values are 256 and 32) |
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*/ |
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struct ast_vhub; |
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struct ast_vhub_dev; |
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/* |
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* DMA descriptor (generic EPs only, currently only used |
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* for IN endpoints |
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*/ |
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struct ast_vhub_desc { |
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__le32 w0; |
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__le32 w1; |
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}; |
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/* A transfer request, either core-originated or internal */ |
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struct ast_vhub_req { |
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struct usb_request req; |
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struct list_head queue; |
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/* Actual count written to descriptors (desc mode only) */ |
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unsigned int act_count; |
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/* |
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* Desc number of the final packet or -1. For non-desc |
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* mode (or ep0), any >= 0 value means "last packet" |
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*/ |
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int last_desc; |
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/* Request active (pending DMAs) */ |
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bool active : 1; |
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/* Internal request (don't call back core) */ |
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bool internal : 1; |
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}; |
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#define to_ast_req(__ureq) container_of(__ureq, struct ast_vhub_req, req) |
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/* Current state of an EP0 */ |
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enum ep0_state { |
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ep0_state_token, |
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ep0_state_data, |
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ep0_state_status, |
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ep0_state_stall, |
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}; |
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/* |
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* An endpoint, either generic, ep0, actual gadget EP |
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* or internal use vhub EP0. vhub EP1 doesn't have an |
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* associated structure as it's mostly HW managed. |
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*/ |
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struct ast_vhub_ep { |
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struct usb_ep ep; |
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/* Request queue */ |
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struct list_head queue; |
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/* EP index in the device, 0 means this is an EP0 */ |
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unsigned int d_idx; |
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/* Dev pointer or NULL for vHub EP0 */ |
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struct ast_vhub_dev *dev; |
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/* vHub itself */ |
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struct ast_vhub *vhub; |
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/* |
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* DMA buffer for EP0, fallback DMA buffer for misaligned |
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* OUT transfers for generic EPs |
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*/ |
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void *buf; |
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dma_addr_t buf_dma; |
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/* The rest depends on the EP type */ |
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union { |
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/* EP0 (either device or vhub) */ |
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struct { |
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/* |
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* EP0 registers are "similar" for |
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* vHub and devices but located in |
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* different places. |
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*/ |
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void __iomem *ctlstat; |
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void __iomem *setup; |
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/* Current state & direction */ |
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enum ep0_state state; |
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bool dir_in; |
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/* Internal use request */ |
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struct ast_vhub_req req; |
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} ep0; |
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/* Generic endpoint (aka EPn) */ |
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struct { |
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/* Registers */ |
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void __iomem *regs; |
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/* Index in global pool (zero-based) */ |
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unsigned int g_idx; |
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/* DMA Descriptors */ |
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struct ast_vhub_desc *descs; |
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dma_addr_t descs_dma; |
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unsigned int d_next; |
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unsigned int d_last; |
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unsigned int dma_conf; |
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/* Max chunk size for IN EPs */ |
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unsigned int chunk_max; |
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/* State flags */ |
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bool is_in : 1; |
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bool is_iso : 1; |
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bool stalled : 1; |
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bool wedged : 1; |
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bool enabled : 1; |
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bool desc_mode : 1; |
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} epn; |
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}; |
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}; |
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#define to_ast_ep(__uep) container_of(__uep, struct ast_vhub_ep, ep) |
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/* A device attached to a vHub port */ |
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struct ast_vhub_dev { |
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struct ast_vhub *vhub; |
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void __iomem *regs; |
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/* Device index (zero-based) and name string */ |
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unsigned int index; |
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const char *name; |
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/* sysfs enclosure for the gadget gunk */ |
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struct device *port_dev; |
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/* Link to gadget core */ |
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struct usb_gadget gadget; |
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struct usb_gadget_driver *driver; |
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bool registered : 1; |
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bool wakeup_en : 1; |
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bool enabled : 1; |
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/* Endpoint structures */ |
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struct ast_vhub_ep ep0; |
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struct ast_vhub_ep **epns; |
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u32 max_epns; |
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}; |
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#define to_ast_dev(__g) container_of(__g, struct ast_vhub_dev, gadget) |
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/* Per vhub port stateinfo structure */ |
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struct ast_vhub_port { |
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/* Port status & status change registers */ |
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u16 status; |
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u16 change; |
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/* Associated device slot */ |
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struct ast_vhub_dev dev; |
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}; |
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struct ast_vhub_full_cdesc { |
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struct usb_config_descriptor cfg; |
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struct usb_interface_descriptor intf; |
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struct usb_endpoint_descriptor ep; |
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} __packed; |
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/* Global vhub structure */ |
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struct ast_vhub { |
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struct platform_device *pdev; |
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void __iomem *regs; |
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int irq; |
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spinlock_t lock; |
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struct work_struct wake_work; |
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struct clk *clk; |
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/* EP0 DMA buffers allocated in one chunk */ |
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void *ep0_bufs; |
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dma_addr_t ep0_bufs_dma; |
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/* EP0 of the vhub itself */ |
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struct ast_vhub_ep ep0; |
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/* State of vhub ep1 */ |
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bool ep1_stalled : 1; |
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/* Per-port info */ |
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struct ast_vhub_port *ports; |
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u32 max_ports; |
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u32 port_irq_mask; |
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/* Generic EP data structures */ |
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struct ast_vhub_ep *epns; |
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u32 max_epns; |
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/* Upstream bus is suspended ? */ |
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bool suspended : 1; |
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/* Hub itself can signal remote wakeup */ |
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bool wakeup_en : 1; |
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/* Force full speed only */ |
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bool force_usb1 : 1; |
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/* Upstream bus speed captured at bus reset */ |
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unsigned int speed; |
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/* Standard USB Descriptors of the vhub. */ |
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struct usb_device_descriptor vhub_dev_desc; |
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struct ast_vhub_full_cdesc vhub_conf_desc; |
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struct usb_hub_descriptor vhub_hub_desc; |
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struct list_head vhub_str_desc; |
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}; |
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/* Standard request handlers result codes */ |
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enum std_req_rc { |
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std_req_stall = -1, /* Stall requested */ |
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std_req_complete = 0, /* Request completed with no data */ |
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std_req_data = 1, /* Request completed with data */ |
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std_req_driver = 2, /* Pass to driver pls */ |
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}; |
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#ifdef CONFIG_USB_GADGET_VERBOSE |
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#define UDCVDBG(u, fmt...) dev_dbg(&(u)->pdev->dev, fmt) |
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#define EPVDBG(ep, fmt, ...) do { \ |
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dev_dbg(&(ep)->vhub->pdev->dev, \ |
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"%s:EP%d " fmt, \ |
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(ep)->dev ? (ep)->dev->name : "hub", \ |
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(ep)->d_idx, ##__VA_ARGS__); \ |
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} while(0) |
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#define DVDBG(d, fmt, ...) do { \ |
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dev_dbg(&(d)->vhub->pdev->dev, \ |
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"%s " fmt, (d)->name, \ |
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##__VA_ARGS__); \ |
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} while(0) |
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#else |
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#define UDCVDBG(u, fmt...) do { } while(0) |
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#define EPVDBG(ep, fmt, ...) do { } while(0) |
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#define DVDBG(d, fmt, ...) do { } while(0) |
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#endif |
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#ifdef CONFIG_USB_GADGET_DEBUG |
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#define UDCDBG(u, fmt...) dev_dbg(&(u)->pdev->dev, fmt) |
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#define EPDBG(ep, fmt, ...) do { \ |
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dev_dbg(&(ep)->vhub->pdev->dev, \ |
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"%s:EP%d " fmt, \ |
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(ep)->dev ? (ep)->dev->name : "hub", \ |
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(ep)->d_idx, ##__VA_ARGS__); \ |
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} while(0) |
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#define DDBG(d, fmt, ...) do { \ |
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dev_dbg(&(d)->vhub->pdev->dev, \ |
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"%s " fmt, (d)->name, \ |
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##__VA_ARGS__); \ |
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} while(0) |
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#else |
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#define UDCDBG(u, fmt...) do { } while(0) |
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#define EPDBG(ep, fmt, ...) do { } while(0) |
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#define DDBG(d, fmt, ...) do { } while(0) |
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#endif |
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static inline void vhub_dma_workaround(void *addr) |
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{ |
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/* |
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* This works around a confirmed HW issue with the Aspeed chip. |
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* |
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* The core uses a different bus to memory than the AHB going to |
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* the USB device controller. Due to the latter having a higher |
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* priority than the core for arbitration on that bus, it's |
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* possible for an MMIO to the device, followed by a DMA by the |
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* device from memory to all be performed and services before |
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* a previous store to memory gets completed. |
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* |
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* This the following scenario can happen: |
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* |
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* - Driver writes to a DMA descriptor (Mbus) |
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* - Driver writes to the MMIO register to start the DMA (AHB) |
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* - The gadget sees the second write and sends a read of the |
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* descriptor to the memory controller (Mbus) |
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* - The gadget hits memory before the descriptor write |
|
* causing it to read an obsolete value. |
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* |
|
* Thankfully the problem is limited to the USB gadget device, other |
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* masters in the SoC all have a lower priority than the core, thus |
|
* ensuring that the store by the core arrives first. |
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* |
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* The workaround consists of using a dummy read of the memory before |
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* doing the MMIO writes. This will ensure that the previous writes |
|
* have been "pushed out". |
|
*/ |
|
mb(); |
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(void)__raw_readl((void __iomem *)addr); |
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} |
|
|
|
/* core.c */ |
|
void ast_vhub_done(struct ast_vhub_ep *ep, struct ast_vhub_req *req, |
|
int status); |
|
void ast_vhub_nuke(struct ast_vhub_ep *ep, int status); |
|
struct usb_request *ast_vhub_alloc_request(struct usb_ep *u_ep, |
|
gfp_t gfp_flags); |
|
void ast_vhub_free_request(struct usb_ep *u_ep, struct usb_request *u_req); |
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void ast_vhub_init_hw(struct ast_vhub *vhub); |
|
|
|
/* ep0.c */ |
|
void ast_vhub_ep0_handle_ack(struct ast_vhub_ep *ep, bool in_ack); |
|
void ast_vhub_ep0_handle_setup(struct ast_vhub_ep *ep); |
|
void ast_vhub_reset_ep0(struct ast_vhub_dev *dev); |
|
void ast_vhub_init_ep0(struct ast_vhub *vhub, struct ast_vhub_ep *ep, |
|
struct ast_vhub_dev *dev); |
|
int ast_vhub_reply(struct ast_vhub_ep *ep, char *ptr, int len); |
|
int __ast_vhub_simple_reply(struct ast_vhub_ep *ep, int len, ...); |
|
#define ast_vhub_simple_reply(udc, ...) \ |
|
__ast_vhub_simple_reply((udc), \ |
|
sizeof((u8[]) { __VA_ARGS__ })/sizeof(u8), \ |
|
__VA_ARGS__) |
|
|
|
/* hub.c */ |
|
int ast_vhub_init_hub(struct ast_vhub *vhub); |
|
enum std_req_rc ast_vhub_std_hub_request(struct ast_vhub_ep *ep, |
|
struct usb_ctrlrequest *crq); |
|
enum std_req_rc ast_vhub_class_hub_request(struct ast_vhub_ep *ep, |
|
struct usb_ctrlrequest *crq); |
|
void ast_vhub_device_connect(struct ast_vhub *vhub, unsigned int port, |
|
bool on); |
|
void ast_vhub_hub_suspend(struct ast_vhub *vhub); |
|
void ast_vhub_hub_resume(struct ast_vhub *vhub); |
|
void ast_vhub_hub_reset(struct ast_vhub *vhub); |
|
void ast_vhub_hub_wake_all(struct ast_vhub *vhub); |
|
|
|
/* dev.c */ |
|
int ast_vhub_init_dev(struct ast_vhub *vhub, unsigned int idx); |
|
void ast_vhub_del_dev(struct ast_vhub_dev *d); |
|
void ast_vhub_dev_irq(struct ast_vhub_dev *d); |
|
int ast_vhub_std_dev_request(struct ast_vhub_ep *ep, |
|
struct usb_ctrlrequest *crq); |
|
|
|
/* epn.c */ |
|
void ast_vhub_epn_ack_irq(struct ast_vhub_ep *ep); |
|
void ast_vhub_update_epn_stall(struct ast_vhub_ep *ep); |
|
struct ast_vhub_ep *ast_vhub_alloc_epn(struct ast_vhub_dev *d, u8 addr); |
|
void ast_vhub_dev_suspend(struct ast_vhub_dev *d); |
|
void ast_vhub_dev_resume(struct ast_vhub_dev *d); |
|
void ast_vhub_dev_reset(struct ast_vhub_dev *d); |
|
|
|
#endif /* __ASPEED_VHUB_H */
|
|
|