718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
436 lines
16 KiB
C
436 lines
16 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2008 Alexander Motin <mav@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef __SDHCI_H__
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#define __SDHCI_H__
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#include "opt_mmccam.h"
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#define DMA_BLOCK_SIZE 4096
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#define DMA_BOUNDARY 0 /* DMA reload every 4K */
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/* Controller doesn't honor resets unless we touch the clock register */
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#define SDHCI_QUIRK_CLOCK_BEFORE_RESET (1 << 0)
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/* Controller really supports DMA */
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#define SDHCI_QUIRK_FORCE_DMA (1 << 1)
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/* Controller has unusable DMA engine */
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#define SDHCI_QUIRK_BROKEN_DMA (1 << 2)
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/* Controller doesn't like to be reset when there is no card inserted. */
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#define SDHCI_QUIRK_NO_CARD_NO_RESET (1 << 3)
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/* Controller has flaky internal state so reset it on each ios change */
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#define SDHCI_QUIRK_RESET_ON_IOS (1 << 4)
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/* Controller can only DMA chunk sizes that are a multiple of 32 bits */
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#define SDHCI_QUIRK_32BIT_DMA_SIZE (1 << 5)
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/* Controller needs to be reset after each request to stay stable */
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#define SDHCI_QUIRK_RESET_AFTER_REQUEST (1 << 6)
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/* Controller has an off-by-one issue with timeout value */
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#define SDHCI_QUIRK_INCR_TIMEOUT_CONTROL (1 << 7)
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/* Controller has broken read timings */
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#define SDHCI_QUIRK_BROKEN_TIMINGS (1 << 8)
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/* Controller needs lowered frequency */
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#define SDHCI_QUIRK_LOWER_FREQUENCY (1 << 9)
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/* Data timeout is invalid, should use SD clock */
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#define SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK (1 << 10)
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/* Timeout value is invalid, should be overriden */
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#define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL (1 << 11)
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/* SDHCI_CAPABILITIES is invalid */
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#define SDHCI_QUIRK_MISSING_CAPS (1 << 12)
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/* Hardware shifts the 136-bit response, don't do it in software. */
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#define SDHCI_QUIRK_DONT_SHIFT_RESPONSE (1 << 13)
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/* Wait to see reset bit asserted before waiting for de-asserted */
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#define SDHCI_QUIRK_WAITFOR_RESET_ASSERTED (1 << 14)
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/* Leave controller in standard mode when putting card in HS mode. */
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#define SDHCI_QUIRK_DONT_SET_HISPD_BIT (1 << 15)
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/* Alternate clock source is required when supplying a 400 KHz clock. */
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#define SDHCI_QUIRK_BCM577XX_400KHZ_CLKSRC (1 << 16)
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/* Card insert/remove interrupts don't work, polling required. */
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#define SDHCI_QUIRK_POLL_CARD_PRESENT (1 << 17)
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/* All controller slots are non-removable. */
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#define SDHCI_QUIRK_ALL_SLOTS_NON_REMOVABLE (1 << 18)
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/* Issue custom Intel controller reset sequence after power-up. */
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#define SDHCI_QUIRK_INTEL_POWER_UP_RESET (1 << 19)
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/* Data timeout is invalid, use 1 MHz clock instead. */
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#define SDHCI_QUIRK_DATA_TIMEOUT_1MHZ (1 << 20)
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/* Controller doesn't allow access boot partitions. */
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#define SDHCI_QUIRK_BOOT_NOACC (1 << 21)
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/* Controller waits for busy responses. */
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#define SDHCI_QUIRK_WAIT_WHILE_BUSY (1 << 22)
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/* Controller supports eMMC DDR52 mode. */
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#define SDHCI_QUIRK_MMC_DDR52 (1 << 23)
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/* Controller support for UHS DDR50 mode is broken. */
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#define SDHCI_QUIRK_BROKEN_UHS_DDR50 (1 << 24)
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/* Controller support for eMMC HS200 mode is broken. */
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#define SDHCI_QUIRK_BROKEN_MMC_HS200 (1 << 25)
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/* Controller reports support for eMMC HS400 mode as SDHCI_CAN_MMC_HS400. */
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#define SDHCI_QUIRK_CAPS_BIT63_FOR_MMC_HS400 (1 << 26)
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/* Controller support for SDHCI_CTRL2_PRESET_VALUE is broken. */
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#define SDHCI_QUIRK_PRESET_VALUE_BROKEN (1 << 27)
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/* Controller does not support or the support for ACMD12 is broken. */
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#define SDHCI_QUIRK_BROKEN_AUTO_STOP (1 << 28)
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/*
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* Controller registers
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*/
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#define SDHCI_DMA_ADDRESS 0x00
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#define SDHCI_BLOCK_SIZE 0x04
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#define SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 12) | (blksz & 0xFFF))
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#define SDHCI_BLOCK_COUNT 0x06
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#define SDHCI_ARGUMENT 0x08
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#define SDHCI_TRANSFER_MODE 0x0C
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#define SDHCI_TRNS_DMA 0x01
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#define SDHCI_TRNS_BLK_CNT_EN 0x02
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#define SDHCI_TRNS_ACMD12 0x04
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#define SDHCI_TRNS_READ 0x10
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#define SDHCI_TRNS_MULTI 0x20
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#define SDHCI_COMMAND_FLAGS 0x0E
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#define SDHCI_CMD_RESP_NONE 0x00
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#define SDHCI_CMD_RESP_LONG 0x01
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#define SDHCI_CMD_RESP_SHORT 0x02
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#define SDHCI_CMD_RESP_SHORT_BUSY 0x03
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#define SDHCI_CMD_RESP_MASK 0x03
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#define SDHCI_CMD_CRC 0x08
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#define SDHCI_CMD_INDEX 0x10
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#define SDHCI_CMD_DATA 0x20
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#define SDHCI_CMD_TYPE_NORMAL 0x00
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#define SDHCI_CMD_TYPE_SUSPEND 0x40
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#define SDHCI_CMD_TYPE_RESUME 0x80
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#define SDHCI_CMD_TYPE_ABORT 0xc0
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#define SDHCI_CMD_TYPE_MASK 0xc0
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#define SDHCI_COMMAND 0x0F
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#define SDHCI_RESPONSE 0x10
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#define SDHCI_BUFFER 0x20
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#define SDHCI_PRESENT_STATE 0x24
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#define SDHCI_CMD_INHIBIT 0x00000001
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#define SDHCI_DAT_INHIBIT 0x00000002
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#define SDHCI_DAT_ACTIVE 0x00000004
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#define SDHCI_RETUNE_REQUEST 0x00000008
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#define SDHCI_DOING_WRITE 0x00000100
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#define SDHCI_DOING_READ 0x00000200
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#define SDHCI_SPACE_AVAILABLE 0x00000400
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#define SDHCI_DATA_AVAILABLE 0x00000800
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#define SDHCI_CARD_PRESENT 0x00010000
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#define SDHCI_CARD_STABLE 0x00020000
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#define SDHCI_CARD_PIN 0x00040000
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#define SDHCI_WRITE_PROTECT 0x00080000
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#define SDHCI_STATE_DAT_MASK 0x00f00000
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#define SDHCI_STATE_CMD 0x01000000
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#define SDHCI_HOST_CONTROL 0x28
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#define SDHCI_CTRL_LED 0x01
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#define SDHCI_CTRL_4BITBUS 0x02
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#define SDHCI_CTRL_HISPD 0x04
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#define SDHCI_CTRL_SDMA 0x08
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#define SDHCI_CTRL_ADMA2 0x10
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#define SDHCI_CTRL_ADMA264 0x18
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#define SDHCI_CTRL_DMA_MASK 0x18
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#define SDHCI_CTRL_8BITBUS 0x20
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#define SDHCI_CTRL_CARD_DET 0x40
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#define SDHCI_CTRL_FORCE_CARD 0x80
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#define SDHCI_POWER_CONTROL 0x29
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#define SDHCI_POWER_ON 0x01
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#define SDHCI_POWER_180 0x0A
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#define SDHCI_POWER_300 0x0C
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#define SDHCI_POWER_330 0x0E
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#define SDHCI_BLOCK_GAP_CONTROL 0x2A
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#define SDHCI_WAKE_UP_CONTROL 0x2B
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#define SDHCI_CLOCK_CONTROL 0x2C
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#define SDHCI_DIVIDER_MASK 0xff
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#define SDHCI_DIVIDER_MASK_LEN 8
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#define SDHCI_DIVIDER_SHIFT 8
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#define SDHCI_DIVIDER_HI_MASK 3
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#define SDHCI_DIVIDER_HI_SHIFT 6
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#define SDHCI_CLOCK_CARD_EN 0x0004
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#define SDHCI_CLOCK_INT_STABLE 0x0002
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#define SDHCI_CLOCK_INT_EN 0x0001
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#define SDHCI_DIVIDERS_MASK \
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((SDHCI_DIVIDER_MASK << SDHCI_DIVIDER_SHIFT) | \
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(SDHCI_DIVIDER_HI_MASK << SDHCI_DIVIDER_HI_SHIFT))
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#define SDHCI_TIMEOUT_CONTROL 0x2E
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#define SDHCI_SOFTWARE_RESET 0x2F
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#define SDHCI_RESET_ALL 0x01
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#define SDHCI_RESET_CMD 0x02
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#define SDHCI_RESET_DATA 0x04
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#define SDHCI_INT_STATUS 0x30
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#define SDHCI_INT_ENABLE 0x34
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#define SDHCI_SIGNAL_ENABLE 0x38
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#define SDHCI_INT_RESPONSE 0x00000001
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#define SDHCI_INT_DATA_END 0x00000002
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#define SDHCI_INT_BLOCK_GAP 0x00000004
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#define SDHCI_INT_DMA_END 0x00000008
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#define SDHCI_INT_SPACE_AVAIL 0x00000010
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#define SDHCI_INT_DATA_AVAIL 0x00000020
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#define SDHCI_INT_CARD_INSERT 0x00000040
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#define SDHCI_INT_CARD_REMOVE 0x00000080
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#define SDHCI_INT_CARD_INT 0x00000100
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#define SDHCI_INT_INT_A 0x00000200
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#define SDHCI_INT_INT_B 0x00000400
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#define SDHCI_INT_INT_C 0x00000800
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#define SDHCI_INT_RETUNE 0x00001000
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#define SDHCI_INT_ERROR 0x00008000
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#define SDHCI_INT_TIMEOUT 0x00010000
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#define SDHCI_INT_CRC 0x00020000
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#define SDHCI_INT_END_BIT 0x00040000
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#define SDHCI_INT_INDEX 0x00080000
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#define SDHCI_INT_DATA_TIMEOUT 0x00100000
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#define SDHCI_INT_DATA_CRC 0x00200000
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#define SDHCI_INT_DATA_END_BIT 0x00400000
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#define SDHCI_INT_BUS_POWER 0x00800000
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#define SDHCI_INT_ACMD12ERR 0x01000000
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#define SDHCI_INT_ADMAERR 0x02000000
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#define SDHCI_INT_TUNEERR 0x04000000
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#define SDHCI_INT_NORMAL_MASK 0x00007FFF
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#define SDHCI_INT_ERROR_MASK 0xFFFF8000
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#define SDHCI_INT_CMD_ERROR_MASK (SDHCI_INT_TIMEOUT | \
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SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX)
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#define SDHCI_INT_CMD_MASK (SDHCI_INT_RESPONSE | SDHCI_INT_CMD_ERROR_MASK)
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#define SDHCI_INT_DATA_MASK (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \
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SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \
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SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \
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SDHCI_INT_DATA_END_BIT)
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#define SDHCI_ACMD12_ERR 0x3C
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#define SDHCI_HOST_CONTROL2 0x3E
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#define SDHCI_CTRL2_PRESET_VALUE 0x8000
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#define SDHCI_CTRL2_ASYNC_INTR 0x4000
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#define SDHCI_CTRL2_64BIT_ENABLE 0x2000
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#define SDHCI_CTRL2_HOST_V4_ENABLE 0x1000
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#define SDHCI_CTRL2_CMD23_ENABLE 0x0800
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#define SDHCI_CTRL2_ADMA2_LENGTH_MODE 0x0400
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#define SDHCI_CTRL2_UHS2_IFACE_ENABLE 0x0100
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#define SDHCI_CTRL2_SAMPLING_CLOCK 0x0080
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#define SDHCI_CTRL2_EXEC_TUNING 0x0040
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#define SDHCI_CTRL2_DRIVER_TYPE_MASK 0x0030
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#define SDHCI_CTRL2_DRIVER_TYPE_B 0x0000
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#define SDHCI_CTRL2_DRIVER_TYPE_A 0x0010
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#define SDHCI_CTRL2_DRIVER_TYPE_C 0x0020
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#define SDHCI_CTRL2_DRIVER_TYPE_D 0x0030
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#define SDHCI_CTRL2_S18_ENABLE 0x0008
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#define SDHCI_CTRL2_UHS_MASK 0x0007
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#define SDHCI_CTRL2_UHS_SDR12 0x0000
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#define SDHCI_CTRL2_UHS_SDR25 0x0001
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#define SDHCI_CTRL2_UHS_SDR50 0x0002
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#define SDHCI_CTRL2_UHS_SDR104 0x0003
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#define SDHCI_CTRL2_UHS_DDR50 0x0004
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#define SDHCI_CTRL2_MMC_HS400 0x0005 /* non-standard */
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#define SDHCI_CAPABILITIES 0x40
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#define SDHCI_TIMEOUT_CLK_MASK 0x0000003F
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#define SDHCI_TIMEOUT_CLK_SHIFT 0
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#define SDHCI_TIMEOUT_CLK_UNIT 0x00000080
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#define SDHCI_CLOCK_BASE_MASK 0x00003F00
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#define SDHCI_CLOCK_V3_BASE_MASK 0x0000FF00
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#define SDHCI_CLOCK_BASE_SHIFT 8
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#define SDHCI_MAX_BLOCK_MASK 0x00030000
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#define SDHCI_MAX_BLOCK_SHIFT 16
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#define SDHCI_CAN_DO_8BITBUS 0x00040000
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#define SDHCI_CAN_DO_ADMA2 0x00080000
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#define SDHCI_CAN_DO_HISPD 0x00200000
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#define SDHCI_CAN_DO_DMA 0x00400000
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#define SDHCI_CAN_DO_SUSPEND 0x00800000
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#define SDHCI_CAN_VDD_330 0x01000000
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#define SDHCI_CAN_VDD_300 0x02000000
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#define SDHCI_CAN_VDD_180 0x04000000
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#define SDHCI_CAN_DO_64BIT 0x10000000
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#define SDHCI_CAN_ASYNC_INTR 0x20000000
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#define SDHCI_SLOTTYPE_MASK 0xC0000000
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#define SDHCI_SLOTTYPE_REMOVABLE 0x00000000
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#define SDHCI_SLOTTYPE_EMBEDDED 0x40000000
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#define SDHCI_SLOTTYPE_SHARED 0x80000000
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#define SDHCI_CAPABILITIES2 0x44
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#define SDHCI_CAN_SDR50 0x00000001
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#define SDHCI_CAN_SDR104 0x00000002
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#define SDHCI_CAN_DDR50 0x00000004
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#define SDHCI_CAN_DRIVE_TYPE_A 0x00000010
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#define SDHCI_CAN_DRIVE_TYPE_C 0x00000020
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#define SDHCI_CAN_DRIVE_TYPE_D 0x00000040
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#define SDHCI_RETUNE_CNT_MASK 0x00000F00
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#define SDHCI_RETUNE_CNT_SHIFT 8
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#define SDHCI_TUNE_SDR50 0x00002000
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#define SDHCI_RETUNE_MODES_MASK 0x0000C000
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#define SDHCI_RETUNE_MODES_SHIFT 14
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#define SDHCI_CLOCK_MULT_MASK 0x00FF0000
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#define SDHCI_CLOCK_MULT_SHIFT 16
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#define SDHCI_CAN_MMC_HS400 0x80000000 /* non-standard */
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#define SDHCI_MAX_CURRENT 0x48
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#define SDHCI_FORCE_AUTO_EVENT 0x50
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#define SDHCI_FORCE_INTR_EVENT 0x52
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#define SDHCI_ADMA_ERR 0x54
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#define SDHCI_ADMA_ERR_LENGTH 0x04
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#define SDHCI_ADMA_ERR_STATE_MASK 0x03
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#define SDHCI_ADMA_ERR_STATE_STOP 0x00
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#define SDHCI_ADMA_ERR_STATE_FDS 0x01
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#define SDHCI_ADMA_ERR_STATE_TFR 0x03
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#define SDHCI_ADMA_ADDRESS_LO 0x58
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#define SDHCI_ADMA_ADDRESS_HI 0x5C
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#define SDHCI_PRESET_VALUE 0x60
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#define SDHCI_SHARED_BUS_CTRL 0xE0
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#define SDHCI_SLOT_INT_STATUS 0xFC
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#define SDHCI_HOST_VERSION 0xFE
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#define SDHCI_VENDOR_VER_MASK 0xFF00
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#define SDHCI_VENDOR_VER_SHIFT 8
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#define SDHCI_SPEC_VER_MASK 0x00FF
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#define SDHCI_SPEC_VER_SHIFT 0
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#define SDHCI_SPEC_100 0
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#define SDHCI_SPEC_200 1
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#define SDHCI_SPEC_300 2
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#define SDHCI_SPEC_400 3
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#define SDHCI_SPEC_410 4
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#define SDHCI_SPEC_420 5
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SYSCTL_DECL(_hw_sdhci);
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extern u_int sdhci_quirk_clear;
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extern u_int sdhci_quirk_set;
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struct sdhci_slot {
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struct mtx mtx; /* Slot mutex */
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u_int quirks; /* Chip specific quirks */
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u_int caps; /* Override SDHCI_CAPABILITIES */
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u_int caps2; /* Override SDHCI_CAPABILITIES2 */
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device_t bus; /* Bus device */
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device_t dev; /* Slot device */
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u_char num; /* Slot number */
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u_char opt; /* Slot options */
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#define SDHCI_HAVE_DMA 0x01
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#define SDHCI_PLATFORM_TRANSFER 0x02
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#define SDHCI_NON_REMOVABLE 0x04
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#define SDHCI_TUNING_SUPPORTED 0x08
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#define SDHCI_TUNING_ENABLED 0x10
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#define SDHCI_SDR50_NEEDS_TUNING 0x20
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#define SDHCI_SLOT_EMBEDDED 0x40
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u_char version;
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int timeout; /* Transfer timeout */
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uint32_t max_clk; /* Max possible freq */
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uint32_t timeout_clk; /* Timeout freq */
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bus_dma_tag_t dmatag;
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bus_dmamap_t dmamap;
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u_char *dmamem;
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bus_addr_t paddr; /* DMA buffer address */
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struct task card_task; /* Card presence check task */
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struct timeout_task
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card_delayed_task;/* Card insert delayed task */
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struct callout card_poll_callout;/* Card present polling callout */
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struct callout timeout_callout;/* Card command/data response timeout */
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struct callout retune_callout; /* Re-tuning mode 1 callout */
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struct mmc_host host; /* Host parameters */
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struct mmc_request *req; /* Current request */
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struct mmc_command *curcmd; /* Current command of current request */
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struct mmc_request *tune_req; /* Tuning request */
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struct mmc_command *tune_cmd; /* Tuning command of tuning request */
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struct mmc_data *tune_data; /* Tuning data of tuning command */
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uint32_t retune_ticks; /* Re-tuning callout ticks [hz] */
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uint32_t intmask; /* Current interrupt mask */
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uint32_t clock; /* Current clock freq. */
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size_t offset; /* Data buffer offset */
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uint8_t hostctrl; /* Current host control register */
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uint8_t retune_count; /* Controller re-tuning count [s] */
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uint8_t retune_mode; /* Controller re-tuning mode */
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#define SDHCI_RETUNE_MODE_1 0x00
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#define SDHCI_RETUNE_MODE_2 0x01
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#define SDHCI_RETUNE_MODE_3 0x02
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uint8_t retune_req; /* Re-tuning request status */
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#define SDHCI_RETUNE_REQ_NEEDED 0x01 /* Re-tuning w/o circuit reset needed */
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#define SDHCI_RETUNE_REQ_RESET 0x02 /* Re-tuning w/ circuit reset needed */
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u_char power; /* Current power */
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u_char bus_busy; /* Bus busy status */
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u_char cmd_done; /* CMD command part done flag */
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u_char data_done; /* DAT command part done flag */
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u_char flags; /* Request execution flags */
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#define CMD_STARTED 1
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#define STOP_STARTED 2
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#define SDHCI_USE_DMA 4 /* Use DMA for this req. */
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#define PLATFORM_DATA_STARTED 8 /* Data xfer is handled by platform */
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#ifdef MMCCAM
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/* CAM stuff */
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union ccb *ccb;
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struct cam_devq *devq;
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struct cam_sim *sim;
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struct mtx sim_mtx;
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u_char card_present; /* XXX Maybe derive this from elsewhere? */
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#endif
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};
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int sdhci_generic_read_ivar(device_t bus, device_t child, int which,
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uintptr_t *result);
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int sdhci_generic_write_ivar(device_t bus, device_t child, int which,
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uintptr_t value);
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int sdhci_init_slot(device_t dev, struct sdhci_slot *slot, int num);
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void sdhci_start_slot(struct sdhci_slot *slot);
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/* performs generic clean-up for platform transfers */
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void sdhci_finish_data(struct sdhci_slot *slot);
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int sdhci_cleanup_slot(struct sdhci_slot *slot);
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int sdhci_generic_suspend(struct sdhci_slot *slot);
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int sdhci_generic_resume(struct sdhci_slot *slot);
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int sdhci_generic_update_ios(device_t brdev, device_t reqdev);
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int sdhci_generic_tune(device_t brdev, device_t reqdev, bool hs400);
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int sdhci_generic_switch_vccq(device_t brdev, device_t reqdev);
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int sdhci_generic_retune(device_t brdev, device_t reqdev, bool reset);
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int sdhci_generic_request(device_t brdev, device_t reqdev,
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|
struct mmc_request *req);
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int sdhci_generic_get_ro(device_t brdev, device_t reqdev);
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int sdhci_generic_acquire_host(device_t brdev, device_t reqdev);
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int sdhci_generic_release_host(device_t brdev, device_t reqdev);
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void sdhci_generic_intr(struct sdhci_slot *slot);
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uint32_t sdhci_generic_min_freq(device_t brdev, struct sdhci_slot *slot);
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bool sdhci_generic_get_card_present(device_t brdev, struct sdhci_slot *slot);
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void sdhci_generic_set_uhs_timing(device_t brdev, struct sdhci_slot *slot);
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void sdhci_handle_card_present(struct sdhci_slot *slot, bool is_present);
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#endif /* __SDHCI_H__ */
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