[net-next-2.6.git] / drivers / net / 3c505.h

/*****************************************************************
 *
 *  defines for 3Com Etherlink Plus adapter
 *
 *****************************************************************/

#define ELP_DMA       6
#define ELP_RX_PCBS   4
#define ELP_MAX_CARDS 4

/*
 * I/O register offsets
 */
#define	PORT_COMMAND	0x00	/* read/write, 8-bit */
#define	PORT_STATUS	0x02	/* read only, 8-bit */
#define	PORT_AUXDMA	0x02	/* write only, 8-bit */
#define	PORT_DATA	0x04	/* read/write, 16-bit */
#define	PORT_CONTROL	0x06	/* read/write, 8-bit */

#define ELP_IO_EXTENT	0x10	/* size of used IO registers */

/*
 * host control registers bits
 */
#define	ATTN	0x80	/* attention */
#define	FLSH	0x40	/* flush data register */
#define DMAE	0x20	/* DMA enable */
#define DIR	0x10	/* direction */
#define	TCEN	0x08	/* terminal count interrupt enable */
#define	CMDE	0x04	/* command register interrupt enable */
#define	HSF2	0x02	/* host status flag 2 */
#define	HSF1	0x01	/* host status flag 1 */

/*
 * combinations of HSF flags used for PCB transmission
 */
#define	HSF_PCB_ACK	HSF1
#define	HSF_PCB_NAK	HSF2
#define	HSF_PCB_END	(HSF2|HSF1)
#define	HSF_PCB_MASK	(HSF2|HSF1)

/*
 * host status register bits
 */
#define	HRDY	0x80	/* data register ready */
#define	HCRE	0x40	/* command register empty */
#define	ACRF	0x20	/* adapter command register full */
/* #define DIR 	0x10	direction - same as in control register */
#define	DONE	0x08	/* DMA done */
#define	ASF3	0x04	/* adapter status flag 3 */
#define	ASF2	0x02	/* adapter status flag 2 */
#define	ASF1	0x01	/* adapter status flag 1 */

/*
 * combinations of ASF flags used for PCB reception
 */
#define	ASF_PCB_ACK	ASF1
#define	ASF_PCB_NAK	ASF2
#define	ASF_PCB_END	(ASF2|ASF1)
#define	ASF_PCB_MASK	(ASF2|ASF1)

/*
 * host aux DMA register bits
 */
#define	DMA_BRST	0x01	/* DMA burst */

/*
 * maximum amount of data allowed in a PCB
 */
#define	MAX_PCB_DATA	62

/*****************************************************************
 *
 *  timeout value
 *	this is a rough value used for loops to stop them from
 *	locking up the whole machine in the case of failure or
 *	error conditions
 *
 *****************************************************************/

#define	TIMEOUT	300

/*****************************************************************
 *
 * PCB commands
 *
 *****************************************************************/

enum {
  /*
   * host PCB commands
   */
  CMD_CONFIGURE_ADAPTER_MEMORY	= 0x01,
  CMD_CONFIGURE_82586		= 0x02,
  CMD_STATION_ADDRESS		= 0x03,
  CMD_DMA_DOWNLOAD		= 0x04,
  CMD_DMA_UPLOAD		= 0x05,
  CMD_PIO_DOWNLOAD		= 0x06,
  CMD_PIO_UPLOAD		= 0x07,
  CMD_RECEIVE_PACKET		= 0x08,
  CMD_TRANSMIT_PACKET		= 0x09,
  CMD_NETWORK_STATISTICS	= 0x0a,
  CMD_LOAD_MULTICAST_LIST	= 0x0b,
  CMD_CLEAR_PROGRAM		= 0x0c,
  CMD_DOWNLOAD_PROGRAM		= 0x0d,
  CMD_EXECUTE_PROGRAM		= 0x0e,
  CMD_SELF_TEST			= 0x0f,
  CMD_SET_STATION_ADDRESS	= 0x10,
  CMD_ADAPTER_INFO		= 0x11,
  NUM_TRANSMIT_CMDS,

  /*
   * adapter PCB commands
   */
  CMD_CONFIGURE_ADAPTER_RESPONSE	= 0x31,
  CMD_CONFIGURE_82586_RESPONSE		= 0x32,
  CMD_ADDRESS_RESPONSE			= 0x33,
  CMD_DOWNLOAD_DATA_REQUEST		= 0x34,
  CMD_UPLOAD_DATA_REQUEST		= 0x35,
  CMD_RECEIVE_PACKET_COMPLETE		= 0x38,
  CMD_TRANSMIT_PACKET_COMPLETE		= 0x39,
  CMD_NETWORK_STATISTICS_RESPONSE	= 0x3a,
  CMD_LOAD_MULTICAST_RESPONSE		= 0x3b,
  CMD_CLEAR_PROGRAM_RESPONSE		= 0x3c,
  CMD_DOWNLOAD_PROGRAM_RESPONSE		= 0x3d,
  CMD_EXECUTE_RESPONSE			= 0x3e,
  CMD_SELF_TEST_RESPONSE		= 0x3f,
  CMD_SET_ADDRESS_RESPONSE		= 0x40,
  CMD_ADAPTER_INFO_RESPONSE		= 0x41
};

/* Definitions for the PCB data structure */

/* Data units */
typedef unsigned char         byte;
typedef unsigned short int    word;
typedef unsigned long int     dword;

/* Data structures */
struct Memconf {
	word	cmd_q,
		rcv_q,
		mcast,
		frame,
		rcv_b,
		progs;
};

struct Rcv_pkt {
	word	buf_ofs,
		buf_seg,
		buf_len,
		timeout;
};

struct Xmit_pkt {
	word	buf_ofs,
		buf_seg,
		pkt_len;
};

struct Rcv_resp {
	word	buf_ofs,
		buf_seg,
		buf_len,
		pkt_len,
		timeout,
		status;
	dword	timetag;
};

struct Xmit_resp {
	word	buf_ofs,
		buf_seg,
		c_stat,
		status;
};


struct Netstat {
	dword	tot_recv,
		tot_xmit;
	word	err_CRC,
		err_align,
		err_res,
		err_ovrrun;
};


struct Selftest {
	word	error;
	union {
		word ROM_cksum;
		struct {
			word ofs, seg;
		} RAM;
		word i82586;
	} failure;
};

struct Info {
	byte	minor_vers,
		major_vers;
	word	ROM_cksum,
		RAM_sz,
		free_ofs,
		free_seg;
};

struct Memdump {
       word size,
            off,
            seg;
};

/*
Primary Command Block. The most important data structure. All communication
between the host and the adapter is done with these. (Except for the actual
Ethernet data, which has different packaging.)
*/
typedef struct {
	byte	command;
	byte	length;
	union	{
		struct Memconf		memconf;
		word			configure;
		struct Rcv_pkt		rcv_pkt;
		struct Xmit_pkt		xmit_pkt;
		byte			multicast[10][6];
		byte			eth_addr[6];
		byte			failed;
		struct Rcv_resp		rcv_resp;
		struct Xmit_resp	xmit_resp;
		struct Netstat		netstat;
		struct Selftest		selftest;
		struct Info		info;
		struct Memdump    	memdump;
		byte			raw[62];
	} data;
} pcb_struct;

/* These defines for 'configure' */
#define RECV_STATION	0x00
#define RECV_BROAD	0x01
#define RECV_MULTI	0x02
#define RECV_PROMISC	0x04
#define NO_LOOPBACK	0x00
#define INT_LOOPBACK	0x08
#define EXT_LOOPBACK	0x10

/*****************************************************************
 *
 *  structure to hold context information for adapter
 *
 *****************************************************************/

#define DMA_BUFFER_SIZE  1600
#define BACKLOG_SIZE      4

typedef struct {
	volatile short got[NUM_TRANSMIT_CMDS];	/* flags for
						   command completion */
	pcb_struct tx_pcb;	/* PCB for foreground sending */
	pcb_struct rx_pcb;	/* PCB for foreground receiving */
	pcb_struct itx_pcb;	/* PCB for background sending */
	pcb_struct irx_pcb;	/* PCB for background receiving */

	void *dma_buffer;

	struct {
		unsigned int length[BACKLOG_SIZE];
		unsigned int in;
		unsigned int out;
	} rx_backlog;

	struct {
		unsigned int direction;
		unsigned int length;
		struct sk_buff *skb;
	        void *target;
		unsigned long start_time;
	} current_dma;

	/* flags */
	unsigned long send_pcb_semaphore;
	unsigned long dmaing;
	unsigned long busy;

	unsigned int rx_active;  /* number of receive PCBs */
        volatile unsigned char hcr_val;  /* what we think the HCR contains */
        spinlock_t lock;	/* Interrupt v tx lock */
} elp_device;
Commit	Line	Data
1da177e4 LT	1	/*****************************************************************
	2	*
	3	* defines for 3Com Etherlink Plus adapter
	4	*
	5	*****************************************************************/
	6
	7	#define ELP_DMA 6
	8	#define ELP_RX_PCBS 4
	9	#define ELP_MAX_CARDS 4
	10
	11	/*
	12	* I/O register offsets
	13	*/
	14	#define PORT_COMMAND 0x00 /* read/write, 8-bit */
	15	#define PORT_STATUS 0x02 /* read only, 8-bit */
	16	#define PORT_AUXDMA 0x02 /* write only, 8-bit */
	17	#define PORT_DATA 0x04 /* read/write, 16-bit */
	18	#define PORT_CONTROL 0x06 /* read/write, 8-bit */
	19
	20	#define ELP_IO_EXTENT 0x10 /* size of used IO registers */
	21
	22	/*
	23	* host control registers bits
	24	*/
	25	#define ATTN 0x80 /* attention */
	26	#define FLSH 0x40 /* flush data register */
	27	#define DMAE 0x20 /* DMA enable */
	28	#define DIR 0x10 /* direction */
	29	#define TCEN 0x08 /* terminal count interrupt enable */
	30	#define CMDE 0x04 /* command register interrupt enable */
	31	#define HSF2 0x02 /* host status flag 2 */
	32	#define HSF1 0x01 /* host status flag 1 */
	33
	34	/*
	35	* combinations of HSF flags used for PCB transmission
	36	*/
	37	#define HSF_PCB_ACK HSF1
	38	#define HSF_PCB_NAK HSF2
	39	#define HSF_PCB_END (HSF2\|HSF1)
	40	#define HSF_PCB_MASK (HSF2\|HSF1)
	41
	42	/*
	43	* host status register bits
	44	*/
	45	#define HRDY 0x80 /* data register ready */
	46	#define HCRE 0x40 /* command register empty */
	47	#define ACRF 0x20 /* adapter command register full */
	48	/* #define DIR 0x10 direction - same as in control register */
	49	#define DONE 0x08 /* DMA done */
	50	#define ASF3 0x04 /* adapter status flag 3 */
	51	#define ASF2 0x02 /* adapter status flag 2 */
	52	#define ASF1 0x01 /* adapter status flag 1 */
	53
	54	/*
	55	* combinations of ASF flags used for PCB reception
	56	*/
	57	#define ASF_PCB_ACK ASF1
	58	#define ASF_PCB_NAK ASF2
	59	#define ASF_PCB_END (ASF2\|ASF1)
	60	#define ASF_PCB_MASK (ASF2\|ASF1)
	61
	62	/*
	63	* host aux DMA register bits
	64	*/
65	#define DMA_BRST 0x01 /* DMA burst */
66
67	/*
68	* maximum amount of data allowed in a PCB
69	*/
70	#define MAX_PCB_DATA 62
71
72	/*****************************************************************
73	*
74	* timeout value
6aa20a22	75	* this is a rough value used for loops to stop them from
1da177e4 LT	76	* locking up the whole machine in the case of failure or
	77	* error conditions
	78	*
	79	*****************************************************************/
	80
	81	#define TIMEOUT 300
	82
	83	/*****************************************************************
	84	*
	85	* PCB commands
	86	*
	87	*****************************************************************/
	88
	89	enum {
	90	/*
	91	* host PCB commands
	92	*/
	93	CMD_CONFIGURE_ADAPTER_MEMORY = 0x01,
	94	CMD_CONFIGURE_82586 = 0x02,
	95	CMD_STATION_ADDRESS = 0x03,
	96	CMD_DMA_DOWNLOAD = 0x04,
	97	CMD_DMA_UPLOAD = 0x05,
	98	CMD_PIO_DOWNLOAD = 0x06,
	99	CMD_PIO_UPLOAD = 0x07,
	100	CMD_RECEIVE_PACKET = 0x08,
	101	CMD_TRANSMIT_PACKET = 0x09,
	102	CMD_NETWORK_STATISTICS = 0x0a,
	103	CMD_LOAD_MULTICAST_LIST = 0x0b,
	104	CMD_CLEAR_PROGRAM = 0x0c,
	105	CMD_DOWNLOAD_PROGRAM = 0x0d,
	106	CMD_EXECUTE_PROGRAM = 0x0e,
	107	CMD_SELF_TEST = 0x0f,
	108	CMD_SET_STATION_ADDRESS = 0x10,
	109	CMD_ADAPTER_INFO = 0x11,
	110	NUM_TRANSMIT_CMDS,
	111
	112	/*
	113	* adapter PCB commands
	114	*/
	115	CMD_CONFIGURE_ADAPTER_RESPONSE = 0x31,
	116	CMD_CONFIGURE_82586_RESPONSE = 0x32,
	117	CMD_ADDRESS_RESPONSE = 0x33,
	118	CMD_DOWNLOAD_DATA_REQUEST = 0x34,
	119	CMD_UPLOAD_DATA_REQUEST = 0x35,
	120	CMD_RECEIVE_PACKET_COMPLETE = 0x38,
	121	CMD_TRANSMIT_PACKET_COMPLETE = 0x39,
	122	CMD_NETWORK_STATISTICS_RESPONSE = 0x3a,
	123	CMD_LOAD_MULTICAST_RESPONSE = 0x3b,
	124	CMD_CLEAR_PROGRAM_RESPONSE = 0x3c,
	125	CMD_DOWNLOAD_PROGRAM_RESPONSE = 0x3d,
	126	CMD_EXECUTE_RESPONSE = 0x3e,
	127	CMD_SELF_TEST_RESPONSE = 0x3f,
	128	CMD_SET_ADDRESS_RESPONSE = 0x40,
	129	CMD_ADAPTER_INFO_RESPONSE = 0x41
	130	};
	131
	132	/* Definitions for the PCB data structure */
	133
	134	/* Data units */
	135	typedef unsigned char byte;
	136	typedef unsigned short int word;
	137	typedef unsigned long int dword;
	138
	139	/* Data structures */
140	struct Memconf {
141	word cmd_q,
142	rcv_q,
143	mcast,
144	frame,
145	rcv_b,
146	progs;
147	};
148
149	struct Rcv_pkt {
150	word buf_ofs,
151	buf_seg,
152	buf_len,
153	timeout;
154	};
155
156	struct Xmit_pkt {
157	word buf_ofs,
158	buf_seg,
159	pkt_len;
160	};
161
162	struct Rcv_resp {
163	word buf_ofs,
164	buf_seg,
165	buf_len,
166	pkt_len,
167	timeout,
168	status;
169	dword timetag;
170	};
171
172	struct Xmit_resp {
173	word buf_ofs,
174	buf_seg,
175	c_stat,
176	status;
177	};
178
179
180	struct Netstat {
181	dword tot_recv,
182	tot_xmit;
183	word err_CRC,
184	err_align,
185	err_res,
186	err_ovrrun;
187	};
188
189
190	struct Selftest {
191	word error;
192	union {
193	word ROM_cksum;
194	struct {
195	word ofs, seg;
196	} RAM;
197	word i82586;
198	} failure;
199	};
200
201	struct Info {
202	byte minor_vers,
203	major_vers;
204	word ROM_cksum,
205	RAM_sz,
206	free_ofs,
207	free_seg;
208	};
209
210	struct Memdump {
211	word size,
212	off,
213	seg;
214	};
215
216	/*
217	Primary Command Block. The most important data structure. All communication
218	between the host and the adapter is done with these. (Except for the actual
219	Ethernet data, which has different packaging.)
220	*/
221	typedef struct {
222	byte command;
223	byte length;
224	union {
225	struct Memconf memconf;
226	word configure;
227	struct Rcv_pkt rcv_pkt;
228	struct Xmit_pkt xmit_pkt;
229	byte multicast[10][6];
230	byte eth_addr[6];
231	byte failed;
232	struct Rcv_resp rcv_resp;
233	struct Xmit_resp xmit_resp;
234	struct Netstat netstat;
235	struct Selftest selftest;
236	struct Info info;
237	struct Memdump memdump;
238	byte raw[62];
239	} data;
240	} pcb_struct;
241
242	/* These defines for 'configure' */
243	#define RECV_STATION 0x00
244	#define RECV_BROAD 0x01
245	#define RECV_MULTI 0x02
246	#define RECV_PROMISC 0x04
247	#define NO_LOOPBACK 0x00
248	#define INT_LOOPBACK 0x08
249	#define EXT_LOOPBACK 0x10
250
251	/*****************************************************************
252	*
253	* structure to hold context information for adapter
254	*
255	*****************************************************************/
256
257	#define DMA_BUFFER_SIZE 1600
258	#define BACKLOG_SIZE 4
259
260	typedef struct {
261	volatile short got[NUM_TRANSMIT_CMDS]; /* flags for
262	command completion */
263	pcb_struct tx_pcb; /* PCB for foreground sending */
264	pcb_struct rx_pcb; /* PCB for foreground receiving */
265	pcb_struct itx_pcb; /* PCB for background sending */
266	pcb_struct irx_pcb; /* PCB for background receiving */
1da177e4 LT	267
	268	void *dma_buffer;
	269
	270	struct {
	271	unsigned int length[BACKLOG_SIZE];
	272	unsigned int in;
	273	unsigned int out;
	274	} rx_backlog;
	275
	276	struct {
	277	unsigned int direction;
	278	unsigned int length;
	279	struct sk_buff *skb;
	280	void *target;
	281	unsigned long start_time;
	282	} current_dma;
	283
	284	/* flags */
	285	unsigned long send_pcb_semaphore;
	286	unsigned long dmaing;
	287	unsigned long busy;
	288
	289	unsigned int rx_active; /* number of receive PCBs */
	290	volatile unsigned char hcr_val; /* what we think the HCR contains */
	291	spinlock_t lock; /* Interrupt v tx lock */
	292	} elp_device;