532 static int sc501ai_get_gain_reg(u32 total_gain, u32 *again, u32 *again_fine,  in sc501ai_get_gain_reg()  argument
538 	if (total_gain <= 0x60) { /* 1 - 1.5x gain */  in sc501ai_get_gain_reg()
539 		step = total_gain - 0x40;  in sc501ai_get_gain_reg()
545 	} else if (total_gain <= 0xc0) { /* 1.5x - 3x gain */  in sc501ai_get_gain_reg()
546 		step = (total_gain - 0x60) * 64 / 0x60 - 1;  in sc501ai_get_gain_reg()
552 	} else if (total_gain <= 0x180) { /* 3x - 6x gain */  in sc501ai_get_gain_reg()
553 		step = (total_gain - 0xc0) * 64 / 0xc0 - 1;  in sc501ai_get_gain_reg()
559 	} else if (total_gain <= 0x300) { /* 6x - 12x gain */  in sc501ai_get_gain_reg()
560 		step = (total_gain - 0x180) * 64 / 0x180 - 1;  in sc501ai_get_gain_reg()
566 	} else if (total_gain <= 0x600) { /* 12x - 24x gain */  in sc501ai_get_gain_reg()
567 		step = (total_gain - 0x300) * 64 / 0x300 - 1;  in sc501ai_get_gain_reg()
573 	} else if (total_gain <= 0xc00) { /* 24x - 48x gain */  in sc501ai_get_gain_reg()
574 		step = (total_gain - 0x600) * 128 / 0x600 - 1;  in sc501ai_get_gain_reg()
580 	} else if (total_gain <= 0x1800) { /* 48x - 96x gain */  in sc501ai_get_gain_reg()
581 		step = (total_gain - 0xc00) * 128 / 0xc00 - 1;  in sc501ai_get_gain_reg()
587 	} else if (total_gain <= 0x3000) { /* 96x - 192x gain */  in sc501ai_get_gain_reg()
588 		step  = (total_gain - 0x1800) * 128 / 0x1800 - 1;  in sc501ai_get_gain_reg()
594 	} else if (total_gain <= 0x6000) { /* 192x - 384x gain */  in sc501ai_get_gain_reg()
595 		step  = (total_gain - 0x3000) * 128 / 0x3000 - 1;  in sc501ai_get_gain_reg()
601 	} else if (total_gain <= 0xc000) { /* 384x - 768x gain */  in sc501ai_get_gain_reg()
602 		step  = (total_gain - 0x6000) * 128 / 0x6000 - 1;  in sc501ai_get_gain_reg()