forked from Minki/linux
f2055e145f
Create new directory to contain all Texas Instruments specific DAI,
platform and machine drivers instead of scattering them under davinci and
omap directories.
There is already inter dependency between the two directories becasue of
McASP (on dra7x it is serviced by sDMA, not EDMA).
With the upcoming AM654 we will need to introduce new platform driver for
UDMA and it does not fit under davinci, nor under omap.
With the move I have restructured the Kconfig to be more usable in the era
of simple-sound-card:
CPU DAIs can be selected individually and they will select the platform
driver they can be served with.
To avoid breakage, I have moved over deprecated Kconfig options so
defconfig builds will work without regression.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
For sound/soc/{omap => ti}:
Tested-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
325 lines
8.9 KiB
C
325 lines
8.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* OMAP Multi-Channel Buffered Serial Port
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*
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* Contact: Jarkko Nikula <jarkko.nikula@bitmer.com>
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* Peter Ujfalusi <peter.ujfalusi@ti.com>
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*/
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#ifndef __OMAP_MCBSP_PRIV_H__
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#define __OMAP_MCBSP_PRIV_H__
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#include <linux/platform_data/asoc-ti-mcbsp.h>
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#ifdef CONFIG_ARCH_OMAP1
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#define mcbsp_omap1() 1
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#else
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#define mcbsp_omap1() 0
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#endif
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/* McBSP register numbers. Register address offset = num * reg_step */
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enum {
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/* Common registers */
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OMAP_MCBSP_REG_SPCR2 = 4,
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OMAP_MCBSP_REG_SPCR1,
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OMAP_MCBSP_REG_RCR2,
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OMAP_MCBSP_REG_RCR1,
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OMAP_MCBSP_REG_XCR2,
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OMAP_MCBSP_REG_XCR1,
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OMAP_MCBSP_REG_SRGR2,
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OMAP_MCBSP_REG_SRGR1,
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OMAP_MCBSP_REG_MCR2,
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OMAP_MCBSP_REG_MCR1,
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OMAP_MCBSP_REG_RCERA,
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OMAP_MCBSP_REG_RCERB,
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OMAP_MCBSP_REG_XCERA,
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OMAP_MCBSP_REG_XCERB,
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OMAP_MCBSP_REG_PCR0,
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OMAP_MCBSP_REG_RCERC,
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OMAP_MCBSP_REG_RCERD,
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OMAP_MCBSP_REG_XCERC,
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OMAP_MCBSP_REG_XCERD,
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OMAP_MCBSP_REG_RCERE,
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OMAP_MCBSP_REG_RCERF,
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OMAP_MCBSP_REG_XCERE,
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OMAP_MCBSP_REG_XCERF,
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OMAP_MCBSP_REG_RCERG,
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OMAP_MCBSP_REG_RCERH,
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OMAP_MCBSP_REG_XCERG,
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OMAP_MCBSP_REG_XCERH,
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/* OMAP1-OMAP2420 registers */
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OMAP_MCBSP_REG_DRR2 = 0,
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OMAP_MCBSP_REG_DRR1,
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OMAP_MCBSP_REG_DXR2,
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OMAP_MCBSP_REG_DXR1,
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/* OMAP2430 and onwards */
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OMAP_MCBSP_REG_DRR = 0,
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OMAP_MCBSP_REG_DXR = 2,
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OMAP_MCBSP_REG_SYSCON = 35,
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OMAP_MCBSP_REG_THRSH2,
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OMAP_MCBSP_REG_THRSH1,
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OMAP_MCBSP_REG_IRQST = 40,
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OMAP_MCBSP_REG_IRQEN,
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OMAP_MCBSP_REG_WAKEUPEN,
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OMAP_MCBSP_REG_XCCR,
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OMAP_MCBSP_REG_RCCR,
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OMAP_MCBSP_REG_XBUFFSTAT,
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OMAP_MCBSP_REG_RBUFFSTAT,
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OMAP_MCBSP_REG_SSELCR,
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};
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/************************** McBSP SPCR1 bit definitions ***********************/
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#define RRST BIT(0)
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#define RRDY BIT(1)
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#define RFULL BIT(2)
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#define RSYNC_ERR BIT(3)
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#define RINTM(value) (((value) & 0x3) << 4) /* bits 4:5 */
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#define ABIS BIT(6)
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#define DXENA BIT(7)
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#define CLKSTP(value) (((value) & 0x3) << 11) /* bits 11:12 */
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#define RJUST(value) (((value) & 0x3) << 13) /* bits 13:14 */
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#define ALB BIT(15)
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#define DLB BIT(15)
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/************************** McBSP SPCR2 bit definitions ***********************/
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#define XRST BIT(0)
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#define XRDY BIT(1)
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#define XEMPTY BIT(2)
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#define XSYNC_ERR BIT(3)
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#define XINTM(value) (((value) & 0x3) << 4) /* bits 4:5 */
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#define GRST BIT(6)
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#define FRST BIT(7)
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#define SOFT BIT(8)
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#define FREE BIT(9)
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/************************** McBSP PCR bit definitions *************************/
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#define CLKRP BIT(0)
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#define CLKXP BIT(1)
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#define FSRP BIT(2)
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#define FSXP BIT(3)
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#define DR_STAT BIT(4)
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#define DX_STAT BIT(5)
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#define CLKS_STAT BIT(6)
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#define SCLKME BIT(7)
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#define CLKRM BIT(8)
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#define CLKXM BIT(9)
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#define FSRM BIT(10)
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#define FSXM BIT(11)
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#define RIOEN BIT(12)
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#define XIOEN BIT(13)
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#define IDLE_EN BIT(14)
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/************************** McBSP RCR1 bit definitions ************************/
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#define RWDLEN1(value) (((value) & 0x7) << 5) /* Bits 5:7 */
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#define RFRLEN1(value) (((value) & 0x7f) << 8) /* Bits 8:14 */
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/************************** McBSP XCR1 bit definitions ************************/
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#define XWDLEN1(value) (((value) & 0x7) << 5) /* Bits 5:7 */
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#define XFRLEN1(value) (((value) & 0x7f) << 8) /* Bits 8:14 */
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/*************************** McBSP RCR2 bit definitions ***********************/
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#define RDATDLY(value) ((value) & 0x3) /* Bits 0:1 */
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#define RFIG BIT(2)
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#define RCOMPAND(value) (((value) & 0x3) << 3) /* Bits 3:4 */
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#define RWDLEN2(value) (((value) & 0x7) << 5) /* Bits 5:7 */
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#define RFRLEN2(value) (((value) & 0x7f) << 8) /* Bits 8:14 */
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#define RPHASE BIT(15)
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/*************************** McBSP XCR2 bit definitions ***********************/
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#define XDATDLY(value) ((value) & 0x3) /* Bits 0:1 */
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#define XFIG BIT(2)
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#define XCOMPAND(value) (((value) & 0x3) << 3) /* Bits 3:4 */
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#define XWDLEN2(value) (((value) & 0x7) << 5) /* Bits 5:7 */
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#define XFRLEN2(value) (((value) & 0x7f) << 8) /* Bits 8:14 */
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#define XPHASE BIT(15)
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/************************* McBSP SRGR1 bit definitions ************************/
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#define CLKGDV(value) ((value) & 0x7f) /* Bits 0:7 */
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#define FWID(value) (((value) & 0xff) << 8) /* Bits 8:15 */
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/************************* McBSP SRGR2 bit definitions ************************/
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#define FPER(value) ((value) & 0x0fff) /* Bits 0:11 */
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#define FSGM BIT(12)
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#define CLKSM BIT(13)
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#define CLKSP BIT(14)
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#define GSYNC BIT(15)
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/************************* McBSP MCR1 bit definitions *************************/
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#define RMCM BIT(0)
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#define RCBLK(value) (((value) & 0x7) << 2) /* Bits 2:4 */
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#define RPABLK(value) (((value) & 0x3) << 5) /* Bits 5:6 */
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#define RPBBLK(value) (((value) & 0x3) << 7) /* Bits 7:8 */
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/************************* McBSP MCR2 bit definitions *************************/
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#define XMCM(value) ((value) & 0x3) /* Bits 0:1 */
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#define XCBLK(value) (((value) & 0x7) << 2) /* Bits 2:4 */
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#define XPABLK(value) (((value) & 0x3) << 5) /* Bits 5:6 */
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#define XPBBLK(value) (((value) & 0x3) << 7) /* Bits 7:8 */
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/*********************** McBSP XCCR bit definitions *************************/
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#define XDISABLE BIT(0)
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#define XDMAEN BIT(3)
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#define DILB BIT(5)
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#define XFULL_CYCLE BIT(11)
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#define DXENDLY(value) (((value) & 0x3) << 12) /* Bits 12:13 */
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#define PPCONNECT BIT(14)
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#define EXTCLKGATE BIT(15)
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/********************** McBSP RCCR bit definitions *************************/
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#define RDISABLE BIT(0)
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#define RDMAEN BIT(3)
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#define RFULL_CYCLE BIT(11)
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/********************** McBSP SYSCONFIG bit definitions ********************/
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#define SOFTRST BIT(1)
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#define ENAWAKEUP BIT(2)
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#define SIDLEMODE(value) (((value) & 0x3) << 3)
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#define CLOCKACTIVITY(value) (((value) & 0x3) << 8)
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/********************** McBSP DMA operating modes **************************/
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#define MCBSP_DMA_MODE_ELEMENT 0
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#define MCBSP_DMA_MODE_THRESHOLD 1
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/********************** McBSP WAKEUPEN/IRQST/IRQEN bit definitions *********/
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#define RSYNCERREN BIT(0)
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#define RFSREN BIT(1)
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#define REOFEN BIT(2)
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#define RRDYEN BIT(3)
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#define RUNDFLEN BIT(4)
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#define ROVFLEN BIT(5)
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#define XSYNCERREN BIT(7)
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#define XFSXEN BIT(8)
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#define XEOFEN BIT(9)
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#define XRDYEN BIT(10)
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#define XUNDFLEN BIT(11)
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#define XOVFLEN BIT(12)
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#define XEMPTYEOFEN BIT(14)
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/* Clock signal muxing options */
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#define CLKR_SRC_CLKR 0 /* CLKR signal is from the CLKR pin */
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#define CLKR_SRC_CLKX 1 /* CLKR signal is from the CLKX pin */
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#define FSR_SRC_FSR 2 /* FSR signal is from the FSR pin */
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#define FSR_SRC_FSX 3 /* FSR signal is from the FSX pin */
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/* McBSP functional clock sources */
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#define MCBSP_CLKS_PRCM_SRC 0
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#define MCBSP_CLKS_PAD_SRC 1
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/* we don't do multichannel for now */
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struct omap_mcbsp_reg_cfg {
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u16 spcr2;
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u16 spcr1;
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u16 rcr2;
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u16 rcr1;
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u16 xcr2;
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u16 xcr1;
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u16 srgr2;
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u16 srgr1;
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u16 mcr2;
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u16 mcr1;
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u16 pcr0;
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u16 rcerc;
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u16 rcerd;
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u16 xcerc;
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u16 xcerd;
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u16 rcere;
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u16 rcerf;
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u16 xcere;
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u16 xcerf;
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u16 rcerg;
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u16 rcerh;
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u16 xcerg;
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u16 xcerh;
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u16 xccr;
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u16 rccr;
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};
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struct omap_mcbsp_st_data;
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struct omap_mcbsp {
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struct device *dev;
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struct clk *fclk;
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spinlock_t lock;
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unsigned long phys_base;
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unsigned long phys_dma_base;
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void __iomem *io_base;
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u8 id;
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/*
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* Flags indicating is the bus already activated and configured by
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* another substream
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*/
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int active;
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int configured;
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u8 free;
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int irq;
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int rx_irq;
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int tx_irq;
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/* Protect the field .free, while checking if the mcbsp is in use */
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struct omap_mcbsp_platform_data *pdata;
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struct omap_mcbsp_st_data *st_data;
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struct omap_mcbsp_reg_cfg cfg_regs;
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struct snd_dmaengine_dai_dma_data dma_data[2];
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unsigned int dma_req[2];
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int dma_op_mode;
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u16 max_tx_thres;
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u16 max_rx_thres;
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void *reg_cache;
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int reg_cache_size;
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unsigned int fmt;
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unsigned int in_freq;
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unsigned int latency[2];
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int clk_div;
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int wlen;
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struct pm_qos_request pm_qos_req;
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};
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static inline void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
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{
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void __iomem *addr = mcbsp->io_base + reg * mcbsp->pdata->reg_step;
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if (mcbsp->pdata->reg_size == 2) {
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((u16 *)mcbsp->reg_cache)[reg] = (u16)val;
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writew_relaxed((u16)val, addr);
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} else {
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((u32 *)mcbsp->reg_cache)[reg] = val;
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writel_relaxed(val, addr);
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}
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}
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static inline int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg,
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bool from_cache)
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{
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void __iomem *addr = mcbsp->io_base + reg * mcbsp->pdata->reg_step;
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if (mcbsp->pdata->reg_size == 2) {
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return !from_cache ? readw_relaxed(addr) :
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((u16 *)mcbsp->reg_cache)[reg];
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} else {
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return !from_cache ? readl_relaxed(addr) :
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((u32 *)mcbsp->reg_cache)[reg];
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}
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}
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#define MCBSP_READ(mcbsp, reg) \
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omap_mcbsp_read(mcbsp, OMAP_MCBSP_REG_##reg, 0)
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#define MCBSP_WRITE(mcbsp, reg, val) \
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omap_mcbsp_write(mcbsp, OMAP_MCBSP_REG_##reg, val)
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#define MCBSP_READ_CACHE(mcbsp, reg) \
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omap_mcbsp_read(mcbsp, OMAP_MCBSP_REG_##reg, 1)
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/* Sidetone specific API */
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int omap_mcbsp_st_init(struct platform_device *pdev);
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void omap_mcbsp_st_cleanup(struct platform_device *pdev);
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int omap_mcbsp_st_start(struct omap_mcbsp *mcbsp);
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int omap_mcbsp_st_stop(struct omap_mcbsp *mcbsp);
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#endif /* __OMAP_MCBSP_PRIV_H__ */
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