69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
/* Copyright (c) 2013, The Linux Foundation. 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 are
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* met:
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* * 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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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _GPIO_H_
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#define _GPIO_H_
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#define TLMM_PULL_MASK 0x3
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#define TLMM_HDRV_MASK 0x7
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/* Current values for tlmm pins */
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enum {
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TLMM_CUR_VAL_16MA = 0x7,
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TLMM_CUR_VAL_10MA = 0x4,
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} tlmm_drive_config;
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enum {
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TLMM_PULL_UP = 0x3,
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TLMM_NO_PULL = 0x0,
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} tlmm_pull_values;
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/* Bit offsets in the TLMM register */
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enum {
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SDC1_DATA_HDRV_CTL_OFF = 0,
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SDC1_CMD_HDRV_CTL_OFF = 3,
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SDC1_CLK_HDRV_CTL_OFF = 6,
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SDC1_DATA_PULL_CTL_OFF = 9,
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SDC1_CMD_PULL_CTL_OFF = 11,
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SDC1_CLK_PULL_CTL_OFF = 13,
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} tlmm_drv_ctrl;
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/* Input for the tlmm config function */
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struct tlmm_cfgs {
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uint32_t off; /* Bit offeset in the register */
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uint8_t val; /* Current value */
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uint8_t mask; /* Mask for the clk/dat/cmd control */
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};
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/* APIs: exposed for other drivers */
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/* API: Hdrive control for tlmm pins */
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void tlmm_set_hdrive_ctrl(struct tlmm_cfgs *, uint8_t);
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/* API: Pull control for tlmm pins */
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void tlmm_set_pull_ctrl(struct tlmm_cfgs *, uint8_t);
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#endif
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