include/soc/fsl/cpm.h

Source file repositories/reference/linux-study-clean/include/soc/fsl/cpm.h

File Facts

System
Linux kernel
Corpus path
include/soc/fsl/cpm.h
Extension
.h
Size
5204 bytes
Lines
172
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct spi_pram {
	__be16	rbase;	/* Rx Buffer descriptor base address */
	__be16	tbase;	/* Tx Buffer descriptor base address */
	u8	rfcr;	/* Rx function code */
	u8	tfcr;	/* Tx function code */
	__be16	mrblr;	/* Max receive buffer length */
	__be32	rstate;	/* Internal */
	__be32	rdp;	/* Internal */
	__be16	rbptr;	/* Internal */
	__be16	rbc;	/* Internal */
	__be32	rxtmp;	/* Internal */
	__be32	tstate;	/* Internal */
	__be32	tdp;	/* Internal */
	__be16	tbptr;	/* Internal */
	__be16	tbc;	/* Internal */
	__be32	txtmp;	/* Internal */
	__be32	res;	/* Tx temp. */
	__be16  rpbase;	/* Relocation pointer (CPM1 only) */
	__be16	res1;	/* Reserved */
};

/*
 * USB Controller pram common to QE and CPM.
 */
struct usb_ctlr {
	u8	usb_usmod;
	u8	usb_usadr;
	u8	usb_uscom;
	u8	res1[1];
	__be16	usb_usep[4];
	u8	res2[4];
	__be16	usb_usber;
	u8	res3[2];
	__be16	usb_usbmr;
	u8	res4[1];
	u8	usb_usbs;
	/* Fields down below are QE-only */
	__be16	usb_ussft;
	u8	res5[2];
	__be16	usb_usfrn;
	u8	res6[0x22];
} __attribute__ ((packed));

/*
 * Function code bits, usually generic to devices.
 */
#ifdef CONFIG_CPM1
#define CPMFCR_GBL	((u_char)0x00)	/* Flag doesn't exist in CPM1 */
#define CPMFCR_TC2	((u_char)0x00)	/* Flag doesn't exist in CPM1 */
#define CPMFCR_DTB	((u_char)0x00)	/* Flag doesn't exist in CPM1 */
#define CPMFCR_BDB	((u_char)0x00)	/* Flag doesn't exist in CPM1 */
#else
#define CPMFCR_GBL	((u_char)0x20)	/* Set memory snooping */
#define CPMFCR_TC2	((u_char)0x04)	/* Transfer code 2 value */
#define CPMFCR_DTB	((u_char)0x02)	/* Use local bus for data when set */
#define CPMFCR_BDB	((u_char)0x01)	/* Use local bus for BD when set */
#endif
#define CPMFCR_EB	((u_char)0x10)	/* Set big endian byte order */

/* Opcodes common to CPM1 and CPM2
*/
#define CPM_CR_INIT_TRX		((ushort)0x0000)
#define CPM_CR_INIT_RX		((ushort)0x0001)
#define CPM_CR_INIT_TX		((ushort)0x0002)
#define CPM_CR_HUNT_MODE	((ushort)0x0003)
#define CPM_CR_STOP_TX		((ushort)0x0004)
#define CPM_CR_GRA_STOP_TX	((ushort)0x0005)
#define CPM_CR_RESTART_TX	((ushort)0x0006)
#define CPM_CR_CLOSE_RX_BD	((ushort)0x0007)
#define CPM_CR_SET_GADDR	((ushort)0x0008)
#define CPM_CR_SET_TIMER	((ushort)0x0008)
#define CPM_CR_STOP_IDMA	((ushort)0x000b)

/* Buffer descriptors used by many of the CPM protocols. */
typedef struct cpm_buf_desc {
	ushort	cbd_sc;		/* Status and Control */
	ushort	cbd_datlen;	/* Data length in buffer */
	uint	cbd_bufaddr;	/* Buffer address in host memory */
} cbd_t;

/* Buffer descriptor control/status used by serial
 */

#define BD_SC_EMPTY	(0x8000)	/* Receive is empty */
#define BD_SC_READY	(0x8000)	/* Transmit is ready */
#define BD_SC_WRAP	(0x2000)	/* Last buffer descriptor */
#define BD_SC_INTRPT	(0x1000)	/* Interrupt on change */
#define BD_SC_LAST	(0x0800)	/* Last buffer in frame */
#define BD_SC_TC	(0x0400)	/* Transmit CRC */
#define BD_SC_CM	(0x0200)	/* Continuous mode */

Annotation

Implementation Notes