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4ff028f6c1
The LPASS hardware allows configuring the MI2S SD lines to use
when playing/recording audio. However, at the moment the lpass-cpu
driver has SD0 hard-coded for mono/stereo (or additional fixed
SD lines for more channels).
For weird reasons there seems to be hardware that uses one of the
other SD lines for mono/stereo. For example, some Samsung devices
use an external Speaker amplifier connected to Quaternary MI2S.
For some reason, the SD line for audio playback was connected to
SD1 rather than SD0. (I have no idea why...)
At the moment, the lpass-cpu driver cannot be configured to work
for the Speaker on these devices.
The q6afe driver already allows configuring the MI2S SD lines
through the "qcom,sd-lines" device tree property, but this works
only when routing audio through the ADSP.
This commit adds a very similar configuration for the lpass-cpu driver.
It is now possible to add additional subnodes to the lpass device in
the device tree, to configure the SD lines for playback and/or capture.
E.g. for the Samsung devices mentioned above:
&lpass {
dai@3 {
reg = <MI2S_QUATERNARY>;
qcom,playback-sd-lines = <1>;
};
};
qcom,playback/capture-sd-lines takes a list of SD lines (0-3)
in the same format as the q6afe driver. (The difference here is that
q6afe has separate DAIs for playback/capture, while lpass-cpu has one
for both...)
For backwards compatibility with older device trees, the lpass-cpu driver
defaults to LPAIF_I2SCTL_MODE_8CH if the subnode for a DAI is missing.
This is equivalent to the previous behavior: Up to 8 channels can be
configured, and SD0/QUAT01 will be chosen when setting up a stream
with fewer channels.
This allows the speaker to work on Samsung MSM8916 devices
that use an external speaker amplifier.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200425184657.121991-2-stephan@gerhold.net
Signed-off-by: Mark Brown <broonie@kernel.org>
163 lines
6.8 KiB
C
163 lines
6.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
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*/
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#ifndef __LPASS_LPAIF_REG_H__
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#define __LPASS_LPAIF_REG_H__
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/* LPAIF I2S */
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#define LPAIF_I2SCTL_REG_ADDR(v, addr, port) \
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(v->i2sctrl_reg_base + (addr) + v->i2sctrl_reg_stride * (port))
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#define LPAIF_I2SCTL_REG(v, port) LPAIF_I2SCTL_REG_ADDR(v, 0x0, (port))
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#define LPAIF_I2SCTL_LOOPBACK_MASK 0x8000
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#define LPAIF_I2SCTL_LOOPBACK_SHIFT 15
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#define LPAIF_I2SCTL_LOOPBACK_DISABLE (0 << LPAIF_I2SCTL_LOOPBACK_SHIFT)
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#define LPAIF_I2SCTL_LOOPBACK_ENABLE (1 << LPAIF_I2SCTL_LOOPBACK_SHIFT)
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#define LPAIF_I2SCTL_SPKEN_MASK 0x4000
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#define LPAIF_I2SCTL_SPKEN_SHIFT 14
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#define LPAIF_I2SCTL_SPKEN_DISABLE (0 << LPAIF_I2SCTL_SPKEN_SHIFT)
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#define LPAIF_I2SCTL_SPKEN_ENABLE (1 << LPAIF_I2SCTL_SPKEN_SHIFT)
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#define LPAIF_I2SCTL_MODE_NONE 0
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#define LPAIF_I2SCTL_MODE_SD0 1
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#define LPAIF_I2SCTL_MODE_SD1 2
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#define LPAIF_I2SCTL_MODE_SD2 3
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#define LPAIF_I2SCTL_MODE_SD3 4
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#define LPAIF_I2SCTL_MODE_QUAD01 5
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#define LPAIF_I2SCTL_MODE_QUAD23 6
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#define LPAIF_I2SCTL_MODE_6CH 7
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#define LPAIF_I2SCTL_MODE_8CH 8
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#define LPAIF_I2SCTL_SPKMODE_MASK 0x3C00
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#define LPAIF_I2SCTL_SPKMODE_SHIFT 10
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#define LPAIF_I2SCTL_SPKMODE(mode) ((mode) << LPAIF_I2SCTL_SPKMODE_SHIFT)
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#define LPAIF_I2SCTL_SPKMONO_MASK 0x0200
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#define LPAIF_I2SCTL_SPKMONO_SHIFT 9
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#define LPAIF_I2SCTL_SPKMONO_STEREO (0 << LPAIF_I2SCTL_SPKMONO_SHIFT)
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#define LPAIF_I2SCTL_SPKMONO_MONO (1 << LPAIF_I2SCTL_SPKMONO_SHIFT)
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#define LPAIF_I2SCTL_MICEN_MASK GENMASK(8, 8)
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#define LPAIF_I2SCTL_MICEN_SHIFT 8
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#define LPAIF_I2SCTL_MICEN_DISABLE (0 << LPAIF_I2SCTL_MICEN_SHIFT)
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#define LPAIF_I2SCTL_MICEN_ENABLE (1 << LPAIF_I2SCTL_MICEN_SHIFT)
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#define LPAIF_I2SCTL_MICMODE_MASK GENMASK(7, 4)
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#define LPAIF_I2SCTL_MICMODE_SHIFT 4
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#define LPAIF_I2SCTL_MICMODE(mode) ((mode) << LPAIF_I2SCTL_MICMODE_SHIFT)
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#define LPAIF_I2SCTL_MIMONO_MASK GENMASK(3, 3)
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#define LPAIF_I2SCTL_MICMONO_SHIFT 3
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#define LPAIF_I2SCTL_MICMONO_STEREO (0 << LPAIF_I2SCTL_MICMONO_SHIFT)
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#define LPAIF_I2SCTL_MICMONO_MONO (1 << LPAIF_I2SCTL_MICMONO_SHIFT)
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#define LPAIF_I2SCTL_WSSRC_MASK 0x0004
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#define LPAIF_I2SCTL_WSSRC_SHIFT 2
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#define LPAIF_I2SCTL_WSSRC_INTERNAL (0 << LPAIF_I2SCTL_WSSRC_SHIFT)
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#define LPAIF_I2SCTL_WSSRC_EXTERNAL (1 << LPAIF_I2SCTL_WSSRC_SHIFT)
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#define LPAIF_I2SCTL_BITWIDTH_MASK 0x0003
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#define LPAIF_I2SCTL_BITWIDTH_SHIFT 0
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#define LPAIF_I2SCTL_BITWIDTH_16 (0 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
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#define LPAIF_I2SCTL_BITWIDTH_24 (1 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
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#define LPAIF_I2SCTL_BITWIDTH_32 (2 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
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/* LPAIF IRQ */
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#define LPAIF_IRQ_REG_ADDR(v, addr, port) \
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(v->irq_reg_base + (addr) + v->irq_reg_stride * (port))
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#define LPAIF_IRQ_PORT_HOST 0
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#define LPAIF_IRQEN_REG(v, port) LPAIF_IRQ_REG_ADDR(v, 0x0, (port))
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#define LPAIF_IRQSTAT_REG(v, port) LPAIF_IRQ_REG_ADDR(v, 0x4, (port))
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#define LPAIF_IRQCLEAR_REG(v, port) LPAIF_IRQ_REG_ADDR(v, 0xC, (port))
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#define LPAIF_IRQ_BITSTRIDE 3
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#define LPAIF_IRQ_PER(chan) (1 << (LPAIF_IRQ_BITSTRIDE * (chan)))
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#define LPAIF_IRQ_XRUN(chan) (2 << (LPAIF_IRQ_BITSTRIDE * (chan)))
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#define LPAIF_IRQ_ERR(chan) (4 << (LPAIF_IRQ_BITSTRIDE * (chan)))
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#define LPAIF_IRQ_ALL(chan) (7 << (LPAIF_IRQ_BITSTRIDE * (chan)))
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/* LPAIF DMA */
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#define LPAIF_RDMA_REG_ADDR(v, addr, chan) \
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(v->rdma_reg_base + (addr) + v->rdma_reg_stride * (chan))
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#define LPAIF_RDMACTL_AUDINTF(id) (id << LPAIF_RDMACTL_AUDINTF_SHIFT)
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#define LPAIF_RDMACTL_REG(v, chan) LPAIF_RDMA_REG_ADDR(v, 0x00, (chan))
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#define LPAIF_RDMABASE_REG(v, chan) LPAIF_RDMA_REG_ADDR(v, 0x04, (chan))
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#define LPAIF_RDMABUFF_REG(v, chan) LPAIF_RDMA_REG_ADDR(v, 0x08, (chan))
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#define LPAIF_RDMACURR_REG(v, chan) LPAIF_RDMA_REG_ADDR(v, 0x0C, (chan))
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#define LPAIF_RDMAPER_REG(v, chan) LPAIF_RDMA_REG_ADDR(v, 0x10, (chan))
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#define LPAIF_RDMAPERCNT_REG(v, chan) LPAIF_RDMA_REG_ADDR(v, 0x14, (chan))
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#define LPAIF_WRDMA_REG_ADDR(v, addr, chan) \
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(v->wrdma_reg_base + (addr) + \
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v->wrdma_reg_stride * (chan - v->wrdma_channel_start))
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#define LPAIF_WRDMACTL_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x00, (chan))
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#define LPAIF_WRDMABASE_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x04, (chan))
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#define LPAIF_WRDMABUFF_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x08, (chan))
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#define LPAIF_WRDMACURR_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x0C, (chan))
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#define LPAIF_WRDMAPER_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x10, (chan))
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#define LPAIF_WRDMAPERCNT_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x14, (chan))
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#define __LPAIF_DMA_REG(v, chan, dir, reg) \
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(dir == SNDRV_PCM_STREAM_PLAYBACK) ? \
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LPAIF_RDMA##reg##_REG(v, chan) : \
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LPAIF_WRDMA##reg##_REG(v, chan)
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#define LPAIF_DMACTL_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, CTL)
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#define LPAIF_DMABASE_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, BASE)
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#define LPAIF_DMABUFF_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, BUFF)
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#define LPAIF_DMACURR_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, CURR)
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#define LPAIF_DMAPER_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, PER)
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#define LPAIF_DMAPERCNT_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, PERCNT)
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#define LPAIF_DMACTL_BURSTEN_MASK 0x800
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#define LPAIF_DMACTL_BURSTEN_SHIFT 11
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#define LPAIF_DMACTL_BURSTEN_SINGLE (0 << LPAIF_DMACTL_BURSTEN_SHIFT)
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#define LPAIF_DMACTL_BURSTEN_INCR4 (1 << LPAIF_DMACTL_BURSTEN_SHIFT)
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#define LPAIF_DMACTL_WPSCNT_MASK 0x700
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#define LPAIF_DMACTL_WPSCNT_SHIFT 8
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#define LPAIF_DMACTL_WPSCNT_ONE (0 << LPAIF_DMACTL_WPSCNT_SHIFT)
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#define LPAIF_DMACTL_WPSCNT_TWO (1 << LPAIF_DMACTL_WPSCNT_SHIFT)
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#define LPAIF_DMACTL_WPSCNT_THREE (2 << LPAIF_DMACTL_WPSCNT_SHIFT)
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#define LPAIF_DMACTL_WPSCNT_FOUR (3 << LPAIF_DMACTL_WPSCNT_SHIFT)
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#define LPAIF_DMACTL_WPSCNT_SIX (5 << LPAIF_DMACTL_WPSCNT_SHIFT)
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#define LPAIF_DMACTL_WPSCNT_EIGHT (7 << LPAIF_DMACTL_WPSCNT_SHIFT)
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#define LPAIF_DMACTL_AUDINTF_MASK 0x0F0
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#define LPAIF_DMACTL_AUDINTF_SHIFT 4
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#define LPAIF_DMACTL_AUDINTF(id) (id << LPAIF_DMACTL_AUDINTF_SHIFT)
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#define LPAIF_DMACTL_FIFOWM_MASK 0x00E
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#define LPAIF_DMACTL_FIFOWM_SHIFT 1
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#define LPAIF_DMACTL_FIFOWM_1 (0 << LPAIF_DMACTL_FIFOWM_SHIFT)
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#define LPAIF_DMACTL_FIFOWM_2 (1 << LPAIF_DMACTL_FIFOWM_SHIFT)
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#define LPAIF_DMACTL_FIFOWM_3 (2 << LPAIF_DMACTL_FIFOWM_SHIFT)
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#define LPAIF_DMACTL_FIFOWM_4 (3 << LPAIF_DMACTL_FIFOWM_SHIFT)
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#define LPAIF_DMACTL_FIFOWM_5 (4 << LPAIF_DMACTL_FIFOWM_SHIFT)
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#define LPAIF_DMACTL_FIFOWM_6 (5 << LPAIF_DMACTL_FIFOWM_SHIFT)
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#define LPAIF_DMACTL_FIFOWM_7 (6 << LPAIF_DMACTL_FIFOWM_SHIFT)
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#define LPAIF_DMACTL_FIFOWM_8 (7 << LPAIF_DMACTL_FIFOWM_SHIFT)
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#define LPAIF_DMACTL_ENABLE_MASK 0x1
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#define LPAIF_DMACTL_ENABLE_SHIFT 0
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#define LPAIF_DMACTL_ENABLE_OFF (0 << LPAIF_DMACTL_ENABLE_SHIFT)
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#define LPAIF_DMACTL_ENABLE_ON (1 << LPAIF_DMACTL_ENABLE_SHIFT)
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#define LPAIF_DMACTL_DYNCLK_MASK BIT(12)
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#define LPAIF_DMACTL_DYNCLK_SHIFT 12
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#define LPAIF_DMACTL_DYNCLK_OFF (0 << LPAIF_DMACTL_DYNCLK_SHIFT)
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#define LPAIF_DMACTL_DYNCLK_ON (1 << LPAIF_DMACTL_DYNCLK_SHIFT)
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#endif /* __LPASS_LPAIF_REG_H__ */
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