dm: Move s3c24xx USB driver to a proper place

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David Müller <d.mueller@elsoft.ch>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: U-Boot DM <u-boot-dm@lists.denx.de>

1 files changed, 409 insertions, 0 deletions

diff --git a/drivers/usb/host/ohci-s3c24xx.h b/drivers/usb/host/ohci-s3c24xx.h
new file mode 100644
index 0000000..f272d78
--- /dev/null
+++ b/drivers/usb/host/ohci-s3c24xx.h
@@ -0,0 +1,409 @@
+/*
+ * URB OHCI HCD (Host Controller Driver) for USB.
+ *
+ * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
+ * (C) Copyright 2000-2001 David Brownell <dbrownell@users.sourceforge.net>
+ *
+ * usb-ohci.h
+ */
+
+
+static int cc_to_error[16] = {
+
+/* mapping of the OHCI CC status to error codes */
+	/* No  Error  */ 0,
+	/* CRC Error  */ USB_ST_CRC_ERR,
+	/* Bit Stuff  */ USB_ST_BIT_ERR,
+	/* Data Togg  */ USB_ST_CRC_ERR,
+	/* Stall      */ USB_ST_STALLED,
+	/* DevNotResp */ -1,
+	/* PIDCheck   */ USB_ST_BIT_ERR,
+	/* UnExpPID   */ USB_ST_BIT_ERR,
+	/* DataOver   */ USB_ST_BUF_ERR,
+	/* DataUnder  */ USB_ST_BUF_ERR,
+	/* reservd    */ -1,
+	/* reservd    */ -1,
+	/* BufferOver */ USB_ST_BUF_ERR,
+	/* BuffUnder  */ USB_ST_BUF_ERR,
+	/* Not Access */ -1,
+	/* Not Access */ -1
+};
+
+/* ED States */
+#define ED_NEW		0x00
+#define ED_UNLINK	0x01
+#define ED_OPER		0x02
+#define ED_DEL		0x04
+#define ED_URB_DEL	0x08
+
+/* usb_ohci_ed */
+struct ed {
+	__u32 hwINFO;
+	__u32 hwTailP;
+	__u32 hwHeadP;
+	__u32 hwNextED;
+
+	struct ed *ed_prev;
+	__u8 int_period;
+	__u8 int_branch;
+	__u8 int_load;
+	__u8 int_interval;
+	__u8 state;
+	__u8 type;
+	__u16 last_iso;
+	struct ed *ed_rm_list;
+
+	struct usb_device *usb_dev;
+	__u32 unused[3];
+} __attribute__ ((aligned(16)));
+
+/* TD info field */
+#define TD_CC			0xf0000000
+#define TD_CC_GET(td_p)		(((td_p) >> 28) & 0x0f)
+#define TD_CC_SET(td_p, cc) \
+	{(td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28)}
+#define TD_EC			0x0C000000
+#define TD_T			0x03000000
+#define TD_T_DATA0		0x02000000
+#define TD_T_DATA1		0x03000000
+#define TD_T_TOGGLE		0x00000000
+#define TD_R			0x00040000
+#define TD_DI			0x00E00000
+#define TD_DI_SET(X)		(((X) & 0x07)<< 21)
+#define TD_DP			0x00180000
+#define TD_DP_SETUP		0x00000000
+#define TD_DP_IN		0x00100000
+#define TD_DP_OUT		0x00080000
+
+#define TD_ISO			0x00010000
+#define TD_DEL			0x00020000
+
+/* CC Codes */
+#define TD_CC_NOERROR		0x00
+#define TD_CC_CRC		0x01
+#define TD_CC_BITSTUFFING	0x02
+#define TD_CC_DATATOGGLEM	0x03
+#define TD_CC_STALL		0x04
+#define TD_DEVNOTRESP		0x05
+#define TD_PIDCHECKFAIL	0x06
+#define TD_UNEXPECTEDPID	0x07
+#define TD_DATAOVERRUN		0x08
+#define TD_DATAUNDERRUN	0x09
+#define TD_BUFFEROVERRUN	0x0C
+#define TD_BUFFERUNDERRUN	0x0D
+#define TD_NOTACCESSED		0x0F
+
+
+#define MAXPSW 1
+
+struct td {
+	__u32 hwINFO;
+	__u32 hwCBP;		/* Current Buffer Pointer */
+	__u32 hwNextTD;		/* Next TD Pointer */
+	__u32 hwBE;		/* Memory Buffer End Pointer */
+
+	__u8 unused;
+	__u8 index;
+	struct ed *ed;
+	struct td *next_dl_td;
+	struct usb_device *usb_dev;
+	int transfer_len;
+	__u32 data;
+
+	__u32 unused2[2];
+} __attribute__ ((aligned(32)));
+
+#define OHCI_ED_SKIP	(1 << 14)
+
+/*
+ * The HCCA (Host Controller Communications Area) is a 256 byte
+ * structure defined in the OHCI spec. that the host controller is
+ * told the base address of.  It must be 256-byte aligned.
+ */
+
+#define NUM_INTS 32		/* part of the OHCI standard */
+struct ohci_hcca {
+	__u32 int_table[NUM_INTS];	/* Interrupt ED table */
+	__u16 frame_no;		/* current frame number */
+	__u16 pad1;		/* set to 0 on each frame_no change */
+	__u32 done_head;	/* info returned for an interrupt */
+	u8 reserved_for_hc[116];
+} __attribute__ ((aligned(256)));
+
+/*
+ * Maximum number of root hub ports.
+ */
+#define MAX_ROOT_PORTS	15	/* maximum OHCI root hub ports */
+
+/*
+ * This is the structure of the OHCI controller's memory mapped I/O
+ * region.  This is Memory Mapped I/O.	You must use the readl() and
+ * writel() macros defined in asm/io.h to access these!!
+ */
+struct ohci_regs {
+	/* control and status registers */
+	__u32 revision;
+	__u32 control;
+	__u32 cmdstatus;
+	__u32 intrstatus;
+	__u32 intrenable;
+	__u32 intrdisable;
+	/* memory pointers */
+	__u32 hcca;
+	__u32 ed_periodcurrent;
+	__u32 ed_controlhead;
+	__u32 ed_controlcurrent;
+	__u32 ed_bulkhead;
+	__u32 ed_bulkcurrent;
+	__u32 donehead;
+	/* frame counters */
+	__u32 fminterval;
+	__u32 fmremaining;
+	__u32 fmnumber;
+	__u32 periodicstart;
+	__u32 lsthresh;
+	/* Root hub ports */
+	struct ohci_roothub_regs {
+		__u32 a;
+		__u32 b;
+		__u32 status;
+		__u32 portstatus[MAX_ROOT_PORTS];
+	} roothub;
+} __attribute__ ((aligned(32)));
+
+/* OHCI CONTROL AND STATUS REGISTER MASKS */
+
+/*
+ * HcControl (control) register masks
+ */
+#define OHCI_CTRL_CBSR	(3 << 0)	/* control/bulk service ratio */
+#define OHCI_CTRL_PLE	(1 << 2)	/* periodic list enable */
+#define OHCI_CTRL_IE	(1 << 3)	/* isochronous enable */
+#define OHCI_CTRL_CLE	(1 << 4)	/* control list enable */
+#define OHCI_CTRL_BLE	(1 << 5)	/* bulk list enable */
+#define OHCI_CTRL_HCFS	(3 << 6)	/* host controller functional state */
+#define OHCI_CTRL_IR	(1 << 8)	/* interrupt routing */
+#define OHCI_CTRL_RWC	(1 << 9)	/* remote wakeup connected */
+#define OHCI_CTRL_RWE	(1 << 10)	/* remote wakeup enable */
+
+/* pre-shifted values for HCFS */
+#	define OHCI_USB_RESET	(0 << 6)
+#	define OHCI_USB_RESUME	(1 << 6)
+#	define OHCI_USB_OPER	(2 << 6)
+#	define OHCI_USB_SUSPEND	(3 << 6)
+
+/*
+ * HcCommandStatus (cmdstatus) register masks
+ */
+#define OHCI_HCR	(1 << 0)	/* host controller reset */
+#define OHCI_CLF	(1 << 1)	/* control list filled */
+#define OHCI_BLF	(1 << 2)	/* bulk list filled */
+#define OHCI_OCR	(1 << 3)	/* ownership change request */
+#define OHCI_SOC	(3 << 16)	/* scheduling overrun count */
+
+/*
+ * masks used with interrupt registers:
+ * HcInterruptStatus (intrstatus)
+ * HcInterruptEnable (intrenable)
+ * HcInterruptDisable (intrdisable)
+ */
+#define OHCI_INTR_SO	(1 << 0)	/* scheduling overrun */
+#define OHCI_INTR_WDH	(1 << 1)	/* writeback of done_head */
+#define OHCI_INTR_SF	(1 << 2)	/* start frame */
+#define OHCI_INTR_RD	(1 << 3)	/* resume detect */
+#define OHCI_INTR_UE	(1 << 4)	/* unrecoverable error */
+#define OHCI_INTR_FNO	(1 << 5)	/* frame number overflow */
+#define OHCI_INTR_RHSC	(1 << 6)	/* root hub status change */
+#define OHCI_INTR_OC	(1 << 30)	/* ownership change */
+#define OHCI_INTR_MIE	(1 << 31)	/* master interrupt enable */
+
+/* Virtual Root HUB */
+struct virt_root_hub {
+	int devnum;		/* Address of Root Hub endpoint */
+	void *dev;		/* was urb */
+	void *int_addr;
+	int send;
+	int interval;
+};
+
+/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */
+
+/* destination of request */
+#define RH_INTERFACE		0x01
+#define RH_ENDPOINT		0x02
+#define RH_OTHER		0x03
+
+#define RH_CLASS		0x20
+#define RH_VENDOR		0x40
+
+/* Requests: bRequest << 8 | bmRequestType */
+#define RH_GET_STATUS		0x0080
+#define RH_CLEAR_FEATURE	0x0100
+#define RH_SET_FEATURE		0x0300
+#define RH_SET_ADDRESS		0x0500
+#define RH_GET_DESCRIPTOR	0x0680
+#define RH_SET_DESCRIPTOR	0x0700
+#define RH_GET_CONFIGURATION	0x0880
+#define RH_SET_CONFIGURATION	0x0900
+#define RH_GET_STATE		0x0280
+#define RH_GET_INTERFACE	0x0A80
+#define RH_SET_INTERFACE	0x0B00
+#define RH_SYNC_FRAME		0x0C80
+/* Our Vendor Specific Request */
+#define RH_SET_EP		0x2000
+
+
+/* Hub port features */
+#define RH_PORT_CONNECTION	0x00
+#define RH_PORT_ENABLE		0x01
+#define RH_PORT_SUSPEND		0x02
+#define RH_PORT_OVER_CURRENT	0x03
+#define RH_PORT_RESET		0x04
+#define RH_PORT_POWER		0x08
+#define RH_PORT_LOW_SPEED	0x09
+
+#define RH_C_PORT_CONNECTION	0x10
+#define RH_C_PORT_ENABLE	0x11
+#define RH_C_PORT_SUSPEND	0x12
+#define RH_C_PORT_OVER_CURRENT	0x13
+#define RH_C_PORT_RESET		0x14
+
+/* Hub features */
+#define RH_C_HUB_LOCAL_POWER	0x00
+#define RH_C_HUB_OVER_CURRENT	0x01
+
+#define RH_DEVICE_REMOTE_WAKEUP 0x00
+#define RH_ENDPOINT_STALL	0x01
+
+#define RH_ACK			0x01
+#define RH_REQ_ERR		-1
+#define RH_NACK			0x00
+
+
+/* OHCI ROOT HUB REGISTER MASKS */
+
+/* roothub.portstatus [i] bits */
+#define RH_PS_CCS		0x00000001 /* current connect status */
+#define RH_PS_PES		0x00000002 /* port enable status */
+#define RH_PS_PSS		0x00000004 /* port suspend status */
+#define RH_PS_POCI		0x00000008 /* port over current indicator */
+#define RH_PS_PRS		0x00000010 /* port reset status */
+#define RH_PS_PPS		0x00000100 /* port power status */
+#define RH_PS_LSDA		0x00000200 /* low speed device attached */
+#define RH_PS_CSC		0x00010000 /* connect status change */
+#define RH_PS_PESC		0x00020000 /* port enable status change */
+#define RH_PS_PSSC		0x00040000 /* port suspend status change */
+#define RH_PS_OCIC		0x00080000 /* over current indicator change */
+#define RH_PS_PRSC		0x00100000 /* port reset status change */
+
+/* roothub.status bits */
+#define RH_HS_LPS		0x00000001 /* local power status */
+#define RH_HS_OCI		0x00000002 /* over current indicator */
+#define RH_HS_DRWE		0x00008000 /* device remote wakeup enable */
+#define RH_HS_LPSC		0x00010000 /* local power status change */
+#define RH_HS_OCIC		0x00020000 /* over current indicator change */
+#define RH_HS_CRWE		0x80000000 /* clear remote wakeup enable */
+
+/* roothub.b masks */
+#define RH_B_DR			0x0000ffff /* device removable flags */
+#define RH_B_PPCM		0xffff0000 /* port power control mask */
+
+/* roothub.a masks */
+#define	RH_A_NDP		(0xff << 0)  /* number of downstream ports */
+#define	RH_A_PSM		(1 << 8)     /* power switching mode */
+#define	RH_A_NPS		(1 << 9)     /* no power switching */
+#define	RH_A_DT			(1 << 10)    /* device type (mbz) */
+#define	RH_A_OCPM		(1 << 11)    /* over current protection mode */
+#define	RH_A_NOCP		(1 << 12)    /* no over current protection */
+#define	RH_A_POTPGT		(0xff << 24) /* power on to power good time */
+
+/* urb */
+#define N_URB_TD 48
+struct urb_priv {
+	struct ed *ed;
+	__u16 length;		/* number of tds associated with this request */
+	__u16 td_cnt;		/* number of tds already serviced */
+	int state;
+	unsigned long pipe;
+	int actual_length;
+	struct td *td[N_URB_TD];	/* list pointer to all corresponding TDs
+					   associated with this request */
+};
+#define URB_DEL 1
+
+/*
+ * This is the full ohci controller description
+ *
+ * Note how the "proper" USB information is just
+ * a subset of what the full implementation needs. (Linus)
+ */
+
+
+struct ohci {
+	struct ohci_hcca *hcca;	/* hcca */
+	/*dma_addr_t hcca_dma; */
+
+	int irq;
+	int disabled;		/* e.g. got a UE, we're hung */
+	int sleeping;
+	unsigned long flags;	/* for HC bugs */
+
+	struct ohci_regs *regs;	/* OHCI controller's memory */
+
+	struct ed *ed_rm_list[2];  /* lists of all endpoints to be removed */
+	struct ed *ed_bulktail;    /* last endpoint of bulk list */
+	struct ed *ed_controltail; /* last endpoint of control list */
+	int intrstatus;
+	__u32 hc_control;	/* copy of the hc control reg */
+	struct usb_device *dev[32];
+	struct virt_root_hub rh;
+
+	const char *slot_name;
+};
+
+#define NUM_EDS 8		/* num of preallocated endpoint descriptors */
+
+struct ohci_device {
+	struct ed ed[NUM_EDS];
+	int ed_cnt;
+};
+
+/* hcd */
+/* endpoint */
+static int ep_link(struct ohci *ohci, struct ed *ed);
+static int ep_unlink(struct ohci *ohci, struct ed *ed);
+static struct ed *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe);
+
+/*-------------------------------------------------------------------------*/
+
+/* we need more TDs than EDs */
+#define NUM_TD 64
+
+/* +1 so we can align the storage */
+struct td gtd[NUM_TD + 1];
+
+/* pointers to aligned storage */
+struct td *ptd;
+
+/* TDs ... */
+static inline struct td *td_alloc(struct usb_device *usb_dev)
+{
+	int i;
+	struct td *td;
+
+	td = NULL;
+	for (i = 0; i < NUM_TD; i++) {
+		if (ptd[i].usb_dev == NULL) {
+			td = &ptd[i];
+			td->usb_dev = usb_dev;
+			break;
+		}
+	}
+
+	return td;
+}
+
+static inline void ed_free(struct ed *ed)
+{
+	ed->usb_dev = NULL;
+}