drivers/isdn/hisax/hfc_usb.h - linux-imx - Git at Google

 /* SPDX-License-Identifier: GPL-2.0 */
 /*
  * hfc_usb.h
  *
  * $Id: hfc_usb.h,v 1.1.2.5 2007/08/20 14:36:03 mbachem Exp $
  */

 #ifndef __HFC_USB_H__
 #define __HFC_USB_H__

 #define DRIVER_AUTHOR   "Peter Sprenger (sprenger@moving-byters.de)"
 #define DRIVER_DESC     "HFC-S USB based HiSAX ISDN driver"


 #define HFC_CTRL_TIMEOUT	20	/* 5ms timeout writing/reading regs */
 #define HFC_TIMER_T3		8000	/* timeout for l1 activation timer */
 #define HFC_TIMER_T4		500	/* time for state change interval */

 #define HFCUSB_L1_STATECHANGE	0	/* L1 state changed */
 #define HFCUSB_L1_DRX		1	/* D-frame received */
 #define HFCUSB_L1_ERX		2	/* E-frame received */
 #define HFCUSB_L1_DTX		4	/* D-frames completed */

 #define MAX_BCH_SIZE		2048	/* allowed B-channel packet size */

 #define HFCUSB_RX_THRESHOLD	64	/* threshold for fifo report bit rx */
 #define HFCUSB_TX_THRESHOLD	64	/* threshold for fifo report bit tx */

 #define HFCUSB_CHIP_ID		0x16	/* Chip ID register index */
 #define HFCUSB_CIRM		0x00	/* cirm register index */
 #define HFCUSB_USB_SIZE		0x07	/* int length register */
 #define HFCUSB_USB_SIZE_I	0x06	/* iso length register */
 #define HFCUSB_F_CROSS		0x0b	/* bit order register */
 #define HFCUSB_CLKDEL		0x37	/* bit delay register */
 #define HFCUSB_CON_HDLC		0xfa	/* channel connect register */
 #define HFCUSB_HDLC_PAR		0xfb
 #define HFCUSB_SCTRL		0x31	/* S-bus control register (tx) */
 #define HFCUSB_SCTRL_E		0x32	/* same for E and special funcs */
 #define HFCUSB_SCTRL_R		0x33	/* S-bus control register (rx) */
 #define HFCUSB_F_THRES		0x0c	/* threshold register */
 #define HFCUSB_FIFO		0x0f	/* fifo select register */
 #define HFCUSB_F_USAGE		0x1a	/* fifo usage register */
 #define HFCUSB_MST_MODE0	0x14
 #define HFCUSB_MST_MODE1	0x15
 #define HFCUSB_P_DATA		0x1f
 #define HFCUSB_INC_RES_F	0x0e
 #define HFCUSB_STATES		0x30

 #define HFCUSB_CHIPID		0x40	/* ID value of HFC-S USB */


 /* fifo registers */
 #define HFCUSB_NUM_FIFOS	8	/* maximum number of fifos */
 #define HFCUSB_B1_TX		0	/* index for B1 transmit bulk/int */
 #define HFCUSB_B1_RX		1	/* index for B1 receive bulk/int */
 #define HFCUSB_B2_TX		2
 #define HFCUSB_B2_RX		3
 #define HFCUSB_D_TX		4
 #define HFCUSB_D_RX		5
 #define HFCUSB_PCM_TX		6
 #define HFCUSB_PCM_RX		7

 /*
  * used to switch snd_transfer_mode for different TA modes e.g. the Billion USB TA just
  * supports ISO out, while the Cologne Chip EVAL TA just supports BULK out
  */
 #define USB_INT		0
 #define USB_BULK	1
 #define USB_ISOC	2

 #define ISOC_PACKETS_D	8
 #define ISOC_PACKETS_B	8
 #define ISO_BUFFER_SIZE	128

 /* Fifo flow Control for TX ISO */
 #define SINK_MAX	68
 #define SINK_MIN	48
 #define SINK_DMIN	12
 #define SINK_DMAX	18
 #define BITLINE_INF	(-64 * 8)

 /* HFC-S USB register access by Control-URSs */
 #define write_usb(a, b, c) usb_control_msg((a)->dev, (a)->ctrl_out_pipe, 0, 0x40, (c), (b), NULL, 0, HFC_CTRL_TIMEOUT)
 #define read_usb(a, b, c) usb_control_msg((a)->dev, (a)->ctrl_in_pipe, 1, 0xC0, 0, (b), (c), 1, HFC_CTRL_TIMEOUT)
 #define HFC_CTRL_BUFSIZE 32

 /* entry and size of output/input control buffer */
 typedef struct {
 	__u8 hfc_reg;		/* register number */
 	__u8 reg_val;		/* value to be written (or read) */
 	int action;		/* data for action handler */
 } ctrl_buft;

 /* Debugging Flags */
 #define HFCUSB_DBG_INIT		0x0001
 #define HFCUSB_DBG_STATES	0x0002
 #define HFCUSB_DBG_DCHANNEL	0x0080
 #define HFCUSB_DBG_FIFO_ERR	0x4000
 #define HFCUSB_DBG_VERBOSE_USB	0x8000

 /*
  * URB error codes:
  * Used to represent a list of values and their respective symbolic names
  */
 struct hfcusb_symbolic_list {
 	const int num;
 	const char *name;
 };

 static struct hfcusb_symbolic_list urb_errlist[] = {
 	{-ENOMEM, "No memory for allocation of internal structures"},
 	{-ENOSPC, "The host controller's bandwidth is already consumed"},
 	{-ENOENT, "URB was canceled by unlink_urb"},
 	{-EXDEV, "ISO transfer only partially completed"},
 	{-EAGAIN, "Too match scheduled for the future"},
 	{-ENXIO, "URB already queued"},
 	{-EFBIG, "Too much ISO frames requested"},
 	{-ENOSR, "Buffer error (overrun)"},
 	{-EPIPE, "Specified endpoint is stalled (device not responding)"},
 	{-EOVERFLOW, "Babble (bad cable?)"},
 	{-EPROTO, "Bit-stuff error (bad cable?)"},
 	{-EILSEQ, "CRC/Timeout"},
 	{-ETIMEDOUT, "NAK (device does not respond)"},
 	{-ESHUTDOWN, "Device unplugged"},
 	{-1, NULL}
 };


 /*
  * device dependent information to support different
  * ISDN Ta's using the HFC-S USB chip
  */

 /* USB descriptor need to contain one of the following EndPoint combination: */
 #define CNF_4INT3ISO	1	// 4 INT IN, 3 ISO OUT
 #define CNF_3INT3ISO	2	// 3 INT IN, 3 ISO OUT
 #define CNF_4ISO3ISO	3	// 4 ISO IN, 3 ISO OUT
 #define CNF_3ISO3ISO	4	// 3 ISO IN, 3 ISO OUT

 #define EP_NUL	1	// Endpoint at this position not allowed
 #define EP_NOP	2	// all type of endpoints allowed at this position
 #define EP_ISO	3	// Isochron endpoint mandatory at this position
 #define EP_BLK	4	// Bulk endpoint mandatory at this position
 #define EP_INT	5	// Interrupt endpoint mandatory at this position

 /*
  * List of all supported endpoint configuration sets, used to find the
  * best matching endpoint configuration within a devices' USB descriptor.
  * We need at least 3 RX endpoints, and 3 TX endpoints, either
  * INT-in and ISO-out, or ISO-in and ISO-out)
  * with 4 RX endpoints even E-Channel logging is possible
  */
 static int validconf[][19] = {
 	// INT in, ISO out config
 	{EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NOP, EP_INT,
 	 EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_NUL, EP_NUL,
 	 CNF_4INT3ISO, 2, 1},
 	{EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_NUL,
 	 EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_NUL, EP_NUL,
 	 CNF_3INT3ISO, 2, 0},
 	// ISO in, ISO out config
 	{EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL,
 	 EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_NOP, EP_ISO,
 	 CNF_4ISO3ISO, 2, 1},
 	{EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL,
 	 EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_NUL, EP_NUL,
 	 CNF_3ISO3ISO, 2, 0},
 	{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}	// EOL element
 };

 #ifdef CONFIG_HISAX_DEBUG
 // string description of chosen config
 static char *conf_str[] = {
 	"4 Interrupt IN + 3 Isochron OUT",
 	"3 Interrupt IN + 3 Isochron OUT",
 	"4 Isochron IN + 3 Isochron OUT",
 	"3 Isochron IN + 3 Isochron OUT"
 };
 #endif

 typedef struct {
 	int vendor;		// vendor id
 	int prod_id;		// product id
 	char *vend_name;	// vendor string
 	__u8 led_scheme;	// led display scheme
 	signed short led_bits[8];	// array of 8 possible LED bitmask settings
 } vendor_data;

 #define LED_OFF		0	// no LED support
 #define LED_SCHEME1	1	// LED standard scheme
 #define LED_SCHEME2	2	// not used yet...

 #define LED_POWER_ON	1
 #define LED_POWER_OFF	2
 #define LED_S0_ON	3
 #define LED_S0_OFF	4
 #define LED_B1_ON	5
 #define LED_B1_OFF	6
 #define LED_B1_DATA	7
 #define LED_B2_ON	8
 #define LED_B2_OFF	9
 #define LED_B2_DATA	10

 #define LED_NORMAL	0	// LEDs are normal
 #define LED_INVERTED	1	// LEDs are inverted


 #endif	// __HFC_USB_H__
	/* SPDX-License-Identifier: GPL-2.0 */
	/*
	* hfc_usb.h
	*
	* $Id: hfc_usb.h,v 1.1.2.5 2007/08/20 14:36:03 mbachem Exp $
	*/

	#ifndef __HFC_USB_H__
	#define __HFC_USB_H__

	#define DRIVER_AUTHOR "Peter Sprenger (sprenger@moving-byters.de)"
	#define DRIVER_DESC "HFC-S USB based HiSAX ISDN driver"


	#define HFC_CTRL_TIMEOUT 20 /* 5ms timeout writing/reading regs */
	#define HFC_TIMER_T3 8000 /* timeout for l1 activation timer */
	#define HFC_TIMER_T4 500 /* time for state change interval */

	#define HFCUSB_L1_STATECHANGE 0 /* L1 state changed */
	#define HFCUSB_L1_DRX 1 /* D-frame received */
	#define HFCUSB_L1_ERX 2 /* E-frame received */
	#define HFCUSB_L1_DTX 4 /* D-frames completed */

	#define MAX_BCH_SIZE 2048 /* allowed B-channel packet size */

	#define HFCUSB_RX_THRESHOLD 64 /* threshold for fifo report bit rx */
	#define HFCUSB_TX_THRESHOLD 64 /* threshold for fifo report bit tx */

	#define HFCUSB_CHIP_ID 0x16 /* Chip ID register index */
	#define HFCUSB_CIRM 0x00 /* cirm register index */
	#define HFCUSB_USB_SIZE 0x07 /* int length register */
	#define HFCUSB_USB_SIZE_I 0x06 /* iso length register */
	#define HFCUSB_F_CROSS 0x0b /* bit order register */
	#define HFCUSB_CLKDEL 0x37 /* bit delay register */
	#define HFCUSB_CON_HDLC 0xfa /* channel connect register */
	#define HFCUSB_HDLC_PAR 0xfb
	#define HFCUSB_SCTRL 0x31 /* S-bus control register (tx) */
	#define HFCUSB_SCTRL_E 0x32 /* same for E and special funcs */
	#define HFCUSB_SCTRL_R 0x33 /* S-bus control register (rx) */
	#define HFCUSB_F_THRES 0x0c /* threshold register */
	#define HFCUSB_FIFO 0x0f /* fifo select register */
	#define HFCUSB_F_USAGE 0x1a /* fifo usage register */
	#define HFCUSB_MST_MODE0 0x14
	#define HFCUSB_MST_MODE1 0x15
	#define HFCUSB_P_DATA 0x1f
	#define HFCUSB_INC_RES_F 0x0e
	#define HFCUSB_STATES 0x30

	#define HFCUSB_CHIPID 0x40 /* ID value of HFC-S USB */


	/* fifo registers */
	#define HFCUSB_NUM_FIFOS 8 /* maximum number of fifos */
	#define HFCUSB_B1_TX 0 /* index for B1 transmit bulk/int */
	#define HFCUSB_B1_RX 1 /* index for B1 receive bulk/int */
	#define HFCUSB_B2_TX 2
	#define HFCUSB_B2_RX 3
	#define HFCUSB_D_TX 4
	#define HFCUSB_D_RX 5
	#define HFCUSB_PCM_TX 6
	#define HFCUSB_PCM_RX 7

	/*
	* used to switch snd_transfer_mode for different TA modes e.g. the Billion USB TA just
	* supports ISO out, while the Cologne Chip EVAL TA just supports BULK out
	*/
	#define USB_INT 0
	#define USB_BULK 1
	#define USB_ISOC 2

	#define ISOC_PACKETS_D 8
	#define ISOC_PACKETS_B 8
	#define ISO_BUFFER_SIZE 128

	/* Fifo flow Control for TX ISO */
	#define SINK_MAX 68
	#define SINK_MIN 48
	#define SINK_DMIN 12
	#define SINK_DMAX 18
	#define BITLINE_INF (-64 * 8)

	/* HFC-S USB register access by Control-URSs */
	#define write_usb(a, b, c) usb_control_msg((a)->dev, (a)->ctrl_out_pipe, 0, 0x40, (c), (b), NULL, 0, HFC_CTRL_TIMEOUT)
	#define read_usb(a, b, c) usb_control_msg((a)->dev, (a)->ctrl_in_pipe, 1, 0xC0, 0, (b), (c), 1, HFC_CTRL_TIMEOUT)
	#define HFC_CTRL_BUFSIZE 32

	/* entry and size of output/input control buffer */
	typedef struct {
	__u8 hfc_reg; /* register number */
	__u8 reg_val; /* value to be written (or read) */
	int action; /* data for action handler */
	} ctrl_buft;

	/* Debugging Flags */
	#define HFCUSB_DBG_INIT 0x0001
	#define HFCUSB_DBG_STATES 0x0002
	#define HFCUSB_DBG_DCHANNEL 0x0080
	#define HFCUSB_DBG_FIFO_ERR 0x4000
	#define HFCUSB_DBG_VERBOSE_USB 0x8000

	/*
	* URB error codes:
	* Used to represent a list of values and their respective symbolic names
	*/
	struct hfcusb_symbolic_list {
	const int num;
	const char *name;
	};

	static struct hfcusb_symbolic_list urb_errlist[] = {
	{-ENOMEM, "No memory for allocation of internal structures"},
	{-ENOSPC, "The host controller's bandwidth is already consumed"},
	{-ENOENT, "URB was canceled by unlink_urb"},
	{-EXDEV, "ISO transfer only partially completed"},
	{-EAGAIN, "Too match scheduled for the future"},
	{-ENXIO, "URB already queued"},
	{-EFBIG, "Too much ISO frames requested"},
	{-ENOSR, "Buffer error (overrun)"},
	{-EPIPE, "Specified endpoint is stalled (device not responding)"},
	{-EOVERFLOW, "Babble (bad cable?)"},
	{-EPROTO, "Bit-stuff error (bad cable?)"},
	{-EILSEQ, "CRC/Timeout"},
	{-ETIMEDOUT, "NAK (device does not respond)"},
	{-ESHUTDOWN, "Device unplugged"},
	{-1, NULL}
	};


	/*
	* device dependent information to support different
	* ISDN Ta's using the HFC-S USB chip
	*/

	/* USB descriptor need to contain one of the following EndPoint combination: */
	#define CNF_4INT3ISO 1 // 4 INT IN, 3 ISO OUT
	#define CNF_3INT3ISO 2 // 3 INT IN, 3 ISO OUT
	#define CNF_4ISO3ISO 3 // 4 ISO IN, 3 ISO OUT
	#define CNF_3ISO3ISO 4 // 3 ISO IN, 3 ISO OUT

	#define EP_NUL 1 // Endpoint at this position not allowed
	#define EP_NOP 2 // all type of endpoints allowed at this position
	#define EP_ISO 3 // Isochron endpoint mandatory at this position
	#define EP_BLK 4 // Bulk endpoint mandatory at this position
	#define EP_INT 5 // Interrupt endpoint mandatory at this position

	/*
	* List of all supported endpoint configuration sets, used to find the
	* best matching endpoint configuration within a devices' USB descriptor.
	* We need at least 3 RX endpoints, and 3 TX endpoints, either
	* INT-in and ISO-out, or ISO-in and ISO-out)
	* with 4 RX endpoints even E-Channel logging is possible
	*/
	static int validconf[][19] = {
	// INT in, ISO out config
	{EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NOP, EP_INT,
	EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_NUL, EP_NUL,
	CNF_4INT3ISO, 2, 1},
	{EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_NUL,
	EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_NUL, EP_NUL,
	CNF_3INT3ISO, 2, 0},
	// ISO in, ISO out config
	{EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL,
	EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_NOP, EP_ISO,
	CNF_4ISO3ISO, 2, 1},
	{EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL,
	EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_NUL, EP_NUL,
	CNF_3ISO3ISO, 2, 0},
	{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} // EOL element
	};

	#ifdef CONFIG_HISAX_DEBUG
	// string description of chosen config
	static char *conf_str[] = {
	"4 Interrupt IN + 3 Isochron OUT",
	"3 Interrupt IN + 3 Isochron OUT",
	"4 Isochron IN + 3 Isochron OUT",
	"3 Isochron IN + 3 Isochron OUT"
	};
	#endif

	typedef struct {
	int vendor; // vendor id
	int prod_id; // product id
	char *vend_name; // vendor string
	__u8 led_scheme; // led display scheme
	signed short led_bits[8]; // array of 8 possible LED bitmask settings
	} vendor_data;

	#define LED_OFF 0 // no LED support
	#define LED_SCHEME1 1 // LED standard scheme
	#define LED_SCHEME2 2 // not used yet...

	#define LED_POWER_ON 1
	#define LED_POWER_OFF 2
	#define LED_S0_ON 3
	#define LED_S0_OFF 4
	#define LED_B1_ON 5
	#define LED_B1_OFF 6
	#define LED_B1_DATA 7
	#define LED_B2_ON 8
	#define LED_B2_OFF 9
	#define LED_B2_DATA 10

	#define LED_NORMAL 0 // LEDs are normal
	#define LED_INVERTED 1 // LEDs are inverted


	#endif // __HFC_USB_H__