/* * Copyright 2012-15 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: AMD *
*/
#define DCE_AUX_REG_FIELD_LIST(type)\
type AUX_EN;\
type AUX_RESET;\
type AUX_RESET_DONE;\
type AUX_REG_RW_CNTL_STATUS;\
type AUX_SW_USE_AUX_REG_REQ;\
type AUX_SW_DONE_USING_AUX_REG;\
type AUX_SW_AUTOINCREMENT_DISABLE;\
type AUX_SW_DATA_RW;\
type AUX_SW_INDEX;\
type AUX_SW_GO;\
type AUX_SW_DATA;\
type AUX_SW_REPLY_BYTE_COUNT;\
type AUX_SW_DONE;\
type AUX_SW_DONE_ACK;\
type AUXN_IMPCAL_ENABLE;\
type AUXP_IMPCAL_ENABLE;\
type AUXN_IMPCAL_OVERRIDE_ENABLE;\
type AUXP_IMPCAL_OVERRIDE_ENABLE;\
type AUX_RX_TIMEOUT_LEN;\
type AUX_RX_TIMEOUT_LEN_MUL;\
type AUXN_CALOUT_ERROR_AK;\
type AUXP_CALOUT_ERROR_AK;\
type AUX_SW_START_DELAY;\
type AUX_SW_WR_BYTES
enum { /* This is the timeout as defined in DP 1.2a, * 2.3.4 "Detailed uPacket TX AUX CH State Description".
*/
AUX_TIMEOUT_PERIOD = 400,
/* Ideally, the SW timeout should be just above 550usec * which is programmed in HW. * But the SW timeout of 600usec is not reliable, * because on some systems, delay_in_microseconds() * returns faster than it should. * EPR #379763: by trial-and-error on different systems, * 700usec is the minimum reliable SW timeout for polling * the AUX_SW_STATUS.AUX_SW_DONE bit. * This timeout expires *only* when there is * AUX Error or AUX Timeout conditions - not during normal operation. * During normal operation, AUX_SW_STATUS.AUX_SW_DONE bit is set * at most within ~240usec. That means, * increasing this timeout will not affect normal operation, * and we'll timeout after * SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD = 2400usec. * This timeout is especially important for * converters, resume from S3, and CTS.
*/
SW_AUX_TIMEOUT_PERIOD_MULTIPLIER = 6
};
struct dce_aux {
uint32_t inst; struct ddc *ddc; struct dc_context *ctx; /* following values are expressed in milliseconds */
uint32_t delay;
uint32_t max_defer_write_retry;
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