243 static void S24C16_set_bit(struct sym_device *np, u_char write_bit, u_char *gpreg,   in S24C16_set_bit()  argument
249 		*gpreg |= write_bit;  in S24C16_set_bit()
252 		*gpreg &= 0xfe;  in S24C16_set_bit()
255 		*gpreg |= 0x02;  in S24C16_set_bit()
258 		*gpreg &= 0xfd;  in S24C16_set_bit()
262 	OUTB(np, nc_gpreg, *gpreg);  in S24C16_set_bit()
270 static void S24C16_start(struct sym_device *np, u_char *gpreg)  in S24C16_start()  argument
272 	S24C16_set_bit(np, 1, gpreg, SET_BIT);  in S24C16_start()
273 	S24C16_set_bit(np, 0, gpreg, SET_CLK);  in S24C16_start()
274 	S24C16_set_bit(np, 0, gpreg, CLR_BIT);  in S24C16_start()
275 	S24C16_set_bit(np, 0, gpreg, CLR_CLK);  in S24C16_start()
281 static void S24C16_stop(struct sym_device *np, u_char *gpreg)  in S24C16_stop()  argument
283 	S24C16_set_bit(np, 0, gpreg, SET_CLK);  in S24C16_stop()
284 	S24C16_set_bit(np, 1, gpreg, SET_BIT);  in S24C16_stop()
292 			 u_char *gpreg)  in S24C16_do_bit()  argument
294 	S24C16_set_bit(np, write_bit, gpreg, SET_BIT);  in S24C16_do_bit()
295 	S24C16_set_bit(np, 0, gpreg, SET_CLK);  in S24C16_do_bit()
298 	S24C16_set_bit(np, 0, gpreg, CLR_CLK);  in S24C16_do_bit()
299 	S24C16_set_bit(np, 0, gpreg, CLR_BIT);  in S24C16_do_bit()
306 static void S24C16_write_ack(struct sym_device *np, u_char write_bit, u_char *gpreg,   in S24C16_write_ack()  argument
310 	S24C16_do_bit(np, NULL, write_bit, gpreg);  in S24C16_write_ack()
318 static void S24C16_read_ack(struct sym_device *np, u_char *read_bit, u_char *gpreg,   in S24C16_read_ack()  argument
322 	S24C16_do_bit(np, read_bit, 1, gpreg);  in S24C16_read_ack()
331 			     u_char *gpreg, u_char *gpcntl)  in S24C16_write_byte()  argument
336 		S24C16_do_bit(np, NULL, (write_data >> (7 - x)) & 0x01, gpreg);  in S24C16_write_byte()
338 	S24C16_read_ack(np, ack_data, gpreg, gpcntl);  in S24C16_write_byte()
346 			    u_char *gpreg, u_char *gpcntl)  in S24C16_read_byte()  argument
353 		S24C16_do_bit(np, &read_bit, 1, gpreg);  in S24C16_read_byte()
357 	S24C16_write_ack(np, ack_data, gpreg, gpcntl);  in S24C16_read_byte()
367 	u_char	gpcntl, gpreg;  in sym_write_S24C16_nvram()  local
382 	gpreg = old_gpreg;  in sym_write_S24C16_nvram()
383 	S24C16_set_bit(np, 0, &gpreg, CLR_CLK);  in sym_write_S24C16_nvram()
384 	S24C16_set_bit(np, 0, &gpreg, CLR_BIT);  in sym_write_S24C16_nvram()
387 	S24C16_stop(np, &gpreg);  in sym_write_S24C16_nvram()
392 			S24C16_start(np, &gpreg);  in sym_write_S24C16_nvram()
395 					  &gpreg, &gpcntl);  in sym_write_S24C16_nvram()
399 				  &gpreg, &gpcntl);  in sym_write_S24C16_nvram()
403 					  &gpreg, &gpcntl);  in sym_write_S24C16_nvram()
404 		S24C16_stop(np, &gpreg);  in sym_write_S24C16_nvram()
420 	u_char	gpcntl, gpreg;  in sym_read_S24C16_nvram()  local
436 	gpreg = old_gpreg;  in sym_read_S24C16_nvram()
437 	S24C16_set_bit(np, 0, &gpreg, CLR_CLK);  in sym_read_S24C16_nvram()
438 	S24C16_set_bit(np, 0, &gpreg, CLR_BIT);  in sym_read_S24C16_nvram()
441 	S24C16_stop(np, &gpreg);  in sym_read_S24C16_nvram()
444 	S24C16_start(np, &gpreg);  in sym_read_S24C16_nvram()
448 		0xa0 | ((offset >> 7) & 0x0e), &gpreg, &gpcntl);  in sym_read_S24C16_nvram()
454 		offset & 0xff, &gpreg, &gpcntl);  in sym_read_S24C16_nvram()
459 	S24C16_start(np, &gpreg);  in sym_read_S24C16_nvram()
463 		0xa1 | ((offset >> 7) & 0x0e), &gpreg, &gpcntl);  in sym_read_S24C16_nvram()
473 		S24C16_read_byte(np, &data[x], (x == (len-1)), &gpreg, &gpcntl);  in sym_read_S24C16_nvram()
478 	S24C16_stop(np, &gpreg);  in sym_read_S24C16_nvram()
538 static void T93C46_Clk(struct sym_device *np, u_char *gpreg)  in T93C46_Clk()  argument
540 	OUTB(np, nc_gpreg, *gpreg | 0x04);  in T93C46_Clk()
543 	OUTB(np, nc_gpreg, *gpreg);  in T93C46_Clk()
549 static void T93C46_Read_Bit(struct sym_device *np, u_char *read_bit, u_char *gpreg)  in T93C46_Read_Bit()  argument
552 	T93C46_Clk(np, gpreg);  in T93C46_Read_Bit()
559 static void T93C46_Write_Bit(struct sym_device *np, u_char write_bit, u_char *gpreg)  in T93C46_Write_Bit()  argument
562 		*gpreg |= 0x02;  in T93C46_Write_Bit()
564 		*gpreg &= 0xfd;  in T93C46_Write_Bit()
566 	*gpreg |= 0x10;  in T93C46_Write_Bit()
568 	OUTB(np, nc_gpreg, *gpreg);  in T93C46_Write_Bit()
572 	T93C46_Clk(np, gpreg);  in T93C46_Write_Bit()
578 static void T93C46_Stop(struct sym_device *np, u_char *gpreg)  in T93C46_Stop()  argument
580 	*gpreg &= 0xef;  in T93C46_Stop()
581 	OUTB(np, nc_gpreg, *gpreg);  in T93C46_Stop()
585 	T93C46_Clk(np, gpreg);  in T93C46_Stop()
592 				u_char *read_bit, u_char *gpreg)  in T93C46_Send_Command()  argument
598 		T93C46_Write_Bit(np, (u_char) (write_data >> (8 - x)), gpreg);  in T93C46_Send_Command()
607 		unsigned short *nvram_data, unsigned char *gpreg)  in T93C46_Read_Word()  argument
614 		T93C46_Read_Bit(np, &read_bit, gpreg);  in T93C46_Read_Word()
627 		int len, unsigned char *gpreg)  in T93C46_Read_Data()  argument
634 		T93C46_Send_Command(np, 0x180 | x, &read_bit, gpreg);  in T93C46_Read_Data()
637 		T93C46_Read_Word(np, &data[x], gpreg);  in T93C46_Read_Data()
638 		T93C46_Stop(np, gpreg);  in T93C46_Read_Data()
649 	u_char gpcntl, gpreg;  in sym_read_T93C46_nvram()  local
659 	gpreg = old_gpreg & 0xe9;  in sym_read_T93C46_nvram()
660 	OUTB(np, nc_gpreg, gpreg);  in sym_read_T93C46_nvram()
666 				sizeof(*nvram) / sizeof(short), &gpreg);  in sym_read_T93C46_nvram()