256 static void S24C16_set_bit(struct sym_device *np, u_char write_bit, u_char *gpreg,   in S24C16_set_bit()  argument
262 		*gpreg |= write_bit;  in S24C16_set_bit()
265 		*gpreg &= 0xfe;  in S24C16_set_bit()
268 		*gpreg |= 0x02;  in S24C16_set_bit()
271 		*gpreg &= 0xfd;  in S24C16_set_bit()
275 	OUTB(np, nc_gpreg, *gpreg);  in S24C16_set_bit()
283 static void S24C16_start(struct sym_device *np, u_char *gpreg)  in S24C16_start()  argument
285 	S24C16_set_bit(np, 1, gpreg, SET_BIT);  in S24C16_start()
286 	S24C16_set_bit(np, 0, gpreg, SET_CLK);  in S24C16_start()
287 	S24C16_set_bit(np, 0, gpreg, CLR_BIT);  in S24C16_start()
288 	S24C16_set_bit(np, 0, gpreg, CLR_CLK);  in S24C16_start()
294 static void S24C16_stop(struct sym_device *np, u_char *gpreg)  in S24C16_stop()  argument
296 	S24C16_set_bit(np, 0, gpreg, SET_CLK);  in S24C16_stop()
297 	S24C16_set_bit(np, 1, gpreg, SET_BIT);  in S24C16_stop()
305 			 u_char *gpreg)  in S24C16_do_bit()  argument
307 	S24C16_set_bit(np, write_bit, gpreg, SET_BIT);  in S24C16_do_bit()
308 	S24C16_set_bit(np, 0, gpreg, SET_CLK);  in S24C16_do_bit()
311 	S24C16_set_bit(np, 0, gpreg, CLR_CLK);  in S24C16_do_bit()
312 	S24C16_set_bit(np, 0, gpreg, CLR_BIT);  in S24C16_do_bit()
319 static void S24C16_write_ack(struct sym_device *np, u_char write_bit, u_char *gpreg,   in S24C16_write_ack()  argument
323 	S24C16_do_bit(np, NULL, write_bit, gpreg);  in S24C16_write_ack()
331 static void S24C16_read_ack(struct sym_device *np, u_char *read_bit, u_char *gpreg,   in S24C16_read_ack()  argument
335 	S24C16_do_bit(np, read_bit, 1, gpreg);  in S24C16_read_ack()
344 			     u_char *gpreg, u_char *gpcntl)  in S24C16_write_byte()  argument
349 		S24C16_do_bit(np, NULL, (write_data >> (7 - x)) & 0x01, gpreg);  in S24C16_write_byte()
351 	S24C16_read_ack(np, ack_data, gpreg, gpcntl);  in S24C16_write_byte()
359 			    u_char *gpreg, u_char *gpcntl)  in S24C16_read_byte()  argument
366 		S24C16_do_bit(np, &read_bit, 1, gpreg);  in S24C16_read_byte()
370 	S24C16_write_ack(np, ack_data, gpreg, gpcntl);  in S24C16_read_byte()
380 	u_char	gpcntl, gpreg;  in sym_write_S24C16_nvram()  local
395 	gpreg = old_gpreg;  in sym_write_S24C16_nvram()
396 	S24C16_set_bit(np, 0, &gpreg, CLR_CLK);  in sym_write_S24C16_nvram()
397 	S24C16_set_bit(np, 0, &gpreg, CLR_BIT);  in sym_write_S24C16_nvram()
400 	S24C16_stop(np, &gpreg);  in sym_write_S24C16_nvram()
405 			S24C16_start(np, &gpreg);  in sym_write_S24C16_nvram()
408 					  &gpreg, &gpcntl);  in sym_write_S24C16_nvram()
412 				  &gpreg, &gpcntl);  in sym_write_S24C16_nvram()
416 					  &gpreg, &gpcntl);  in sym_write_S24C16_nvram()
417 		S24C16_stop(np, &gpreg);  in sym_write_S24C16_nvram()
433 	u_char	gpcntl, gpreg;  in sym_read_S24C16_nvram()  local
449 	gpreg = old_gpreg;  in sym_read_S24C16_nvram()
450 	S24C16_set_bit(np, 0, &gpreg, CLR_CLK);  in sym_read_S24C16_nvram()
451 	S24C16_set_bit(np, 0, &gpreg, CLR_BIT);  in sym_read_S24C16_nvram()
454 	S24C16_stop(np, &gpreg);  in sym_read_S24C16_nvram()
457 	S24C16_start(np, &gpreg);  in sym_read_S24C16_nvram()
461 		0xa0 | ((offset >> 7) & 0x0e), &gpreg, &gpcntl);  in sym_read_S24C16_nvram()
467 		offset & 0xff, &gpreg, &gpcntl);  in sym_read_S24C16_nvram()
472 	S24C16_start(np, &gpreg);  in sym_read_S24C16_nvram()
476 		0xa1 | ((offset >> 7) & 0x0e), &gpreg, &gpcntl);  in sym_read_S24C16_nvram()
486 		S24C16_read_byte(np, &data[x], (x == (len-1)), &gpreg, &gpcntl);  in sym_read_S24C16_nvram()
491 	S24C16_stop(np, &gpreg);  in sym_read_S24C16_nvram()
551 static void T93C46_Clk(struct sym_device *np, u_char *gpreg)  in T93C46_Clk()  argument
553 	OUTB(np, nc_gpreg, *gpreg | 0x04);  in T93C46_Clk()
556 	OUTB(np, nc_gpreg, *gpreg);  in T93C46_Clk()
562 static void T93C46_Read_Bit(struct sym_device *np, u_char *read_bit, u_char *gpreg)  in T93C46_Read_Bit()  argument
565 	T93C46_Clk(np, gpreg);  in T93C46_Read_Bit()
572 static void T93C46_Write_Bit(struct sym_device *np, u_char write_bit, u_char *gpreg)  in T93C46_Write_Bit()  argument
575 		*gpreg |= 0x02;  in T93C46_Write_Bit()
577 		*gpreg &= 0xfd;  in T93C46_Write_Bit()
579 	*gpreg |= 0x10;  in T93C46_Write_Bit()
581 	OUTB(np, nc_gpreg, *gpreg);  in T93C46_Write_Bit()
585 	T93C46_Clk(np, gpreg);  in T93C46_Write_Bit()
591 static void T93C46_Stop(struct sym_device *np, u_char *gpreg)  in T93C46_Stop()  argument
593 	*gpreg &= 0xef;  in T93C46_Stop()
594 	OUTB(np, nc_gpreg, *gpreg);  in T93C46_Stop()
598 	T93C46_Clk(np, gpreg);  in T93C46_Stop()
605 				u_char *read_bit, u_char *gpreg)  in T93C46_Send_Command()  argument
611 		T93C46_Write_Bit(np, (u_char) (write_data >> (8 - x)), gpreg);  in T93C46_Send_Command()
620 		unsigned short *nvram_data, unsigned char *gpreg)  in T93C46_Read_Word()  argument
627 		T93C46_Read_Bit(np, &read_bit, gpreg);  in T93C46_Read_Word()
640 		int len, unsigned char *gpreg)  in T93C46_Read_Data()  argument
647 		T93C46_Send_Command(np, 0x180 | x, &read_bit, gpreg);  in T93C46_Read_Data()
650 		T93C46_Read_Word(np, &data[x], gpreg);  in T93C46_Read_Data()
651 		T93C46_Stop(np, gpreg);  in T93C46_Read_Data()
662 	u_char gpcntl, gpreg;  in sym_read_T93C46_nvram()  local
672 	gpreg = old_gpreg & 0xe9;  in sym_read_T93C46_nvram()
673 	OUTB(np, nc_gpreg, gpreg);  in sym_read_T93C46_nvram()
679 				sizeof(*nvram) / sizeof(short), &gpreg);  in sym_read_T93C46_nvram()