[PATCH 02/20] soundwire: intel: add ACE2.x SHIM definitions

Bard Liao
2023-03-23T05:30:47Z

With the HDaudio extended link integration, the SHIM and IP registers
are split in blocks

a) SHIM generic registers
b) IP registers (same offsets for Cadence IP as before)
c) SHIM vendor-specific registers

Add offsets and definitions as defined in the hardware specifications.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
include/linux/soundwire/sdw_intel.h | 75 +++++++++++++++++++++++++++++
1 file changed, 75 insertions(+)

diff --git a/include/linux/soundwire/sdw_intel.h b/include/linux/soundwire/sdw_intel.h
index 207701aeeb47..8e6183e029fa 100644
--- a/include/linux/soundwire/sdw_intel.h
+++ b/include/linux/soundwire/sdw_intel.h
@@ -7,6 +7,10 @@
#include <linux/irqreturn.h>
#include <linux/soundwire/sdw.h>

+/*********************************************************************
+ * cAVS and ACE1.x definitions
+ *********************************************************************/
+
#define SDW_SHIM_BASE 0x2C000
#define SDW_ALH_BASE 0x2C800
#define SDW_SHIM_BASE_ACE 0x38000
@@ -101,6 +105,77 @@
#define SDW_ALH_STRMZCFG_DMAT GENMASK(7, 0)
#define SDW_ALH_STRMZCFG_CHN GENMASK(19, 16)

+/*********************************************************************
+ * ACE2.x definitions for SHIM registers - only accessible when the
+ * HDAudio extended link LCTL.SPA/CPA = 1.
+ *********************************************************************/
+/* x variable is link index */
+#define SDW_SHIM2_GENERIC_BASE(x) (0x00030000 + 0x8000 * (x))
+#define SDW_IP_BASE(x) (0x00030100 + 0x8000 * (x))
+#define SDW_SHIM2_VS_BASE(x) (0x00036000 + 0x8000 * (x))
+
+/* SHIM2 Generic Registers */
+/* Read-only capabilities */
+#define SDW_SHIM2_LECAP 0x00
+#define SDW_SHIM2_LECAP_HDS BIT(0) /* unset -> Host mode */
+#define SDW_SHIM2_LECAP_MLC GENMASK(3, 1) /* Number of Lanes */
+
+/* PCM Stream capabilities */
+#define SDW_SHIM2_PCMSCAP 0x10
+#define SDW_SHIM2_PCMSCAP_ISS GENMASK(3, 0) /* Input-only streams */
+#define SDW_SHIM2_PCMSCAP_OSS GENMASK(7, 4) /* Output-only streams */
+#define SDW_SHIM2_PCMSCAP_BSS GENMASK(12, 8) /* Bidirectional streams */
+
+/* Read-only PCM Stream Channel Count, y variable is stream */
+#define SDW_SHIM2_PCMSYCHC(y) (0x14 + (0x4 * (y)))
+#define SDW_SHIM2_PCMSYCHC_CS GENMASK(3, 0) /* Channels Supported */
+
+/* PCM Stream Channel Map */
+#define SDW_SHIM2_PCMSYCHM(y) (0x16 + (0x4 * (y)))
+#define SDW_SHIM2_PCMSYCHM_LCHAN GENMASK(3, 0) /* Lowest channel used by the FIFO port */
+#define SDW_SHIM2_PCMSYCHM_HCHAN GENMASK(7, 4) /* Lowest channel used by the FIFO port */
+#define SDW_SHIM2_PCMSYCHM_STRM GENMASK(13, 8) /* HDaudio stream tag */
+#define SDW_SHIM2_PCMSYCHM_DIR BIT(15) /* HDaudio stream direction */
+
+/* SHIM2 vendor-specific registers */
+#define SDW_SHIM2_INTEL_VS_LVSCTL 0x04
+#define SDW_SHIM2_INTEL_VS_LVSCTL_FCG BIT(26)
+#define SDW_SHIM2_INTEL_VS_LVSCTL_MLCS GENMASK(29, 27)
+#define SDW_SHIM2_INTEL_VS_LVSCTL_DCGD BIT(30)
+#define SDW_SHIM2_INTEL_VS_LVSCTL_ICGD BIT(31)
+
+#define SDW_SHIM2_MLCS_XTAL_CLK 0x0
+#define SDW_SHIM2_MLCS_CARDINAL_CLK 0x1
+#define SDW_SHIM2_MLCS_AUDIO_PLL_CLK 0x2
+#define SDW_SHIM2_MLCS_MCLK_INPUT_CLK 0x3
+#define SDW_SHIM2_MLCS_WOV_RING_OSC_CLK 0x4
+
+#define SDW_SHIM2_INTEL_VS_WAKEEN 0x08
+#define SDW_SHIM2_INTEL_VS_WAKEEN_PWE BIT(0)
+
+#define SDW_SHIM2_INTEL_VS_WAKESTS 0x0A
+#define SDW_SHIM2_INTEL_VS_WAKEEN_PWS BIT(0)
+
+#define SDW_SHIM2_INTEL_VS_IOCTL 0x0C
+#define SDW_SHIM2_INTEL_VS_IOCTL_MIF BIT(0)
+#define SDW_SHIM2_INTEL_VS_IOCTL_CO BIT(1)
+#define SDW_SHIM2_INTEL_VS_IOCTL_COE BIT(2)
+#define SDW_SHIM2_INTEL_VS_IOCTL_DO BIT(3)
+#define SDW_SHIM2_INTEL_VS_IOCTL_DOE BIT(4)
+#define SDW_SHIM2_INTEL_VS_IOCTL_BKE BIT(5)
+#define SDW_SHIM2_INTEL_VS_IOCTL_WPDD BIT(6)
+#define SDW_SHIM2_INTEL_VS_IOCTL_ODC BIT(7)
+#define SDW_SHIM2_INTEL_VS_IOCTL_CIBD BIT(8)
+#define SDW_SHIM2_INTEL_VS_IOCTL_DIBD BIT(9)
+#define SDW_SHIM2_INTEL_VS_IOCTL_HAMIFD BIT(10)
+
+#define SDW_SHIM2_INTEL_VS_ACTMCTL 0x0E
+#define SDW_SHIM2_INTEL_VS_ACTMCTL_DACTQE BIT(0)
+#define SDW_SHIM2_INTEL_VS_ACTMCTL_DODS BIT(1)
+#define SDW_SHIM2_INTEL_VS_ACTMCTL_DODSE BIT(2)
+#define SDW_SHIM2_INTEL_VS_ACTMCTL_DOAIS GENMASK(4, 3)
+#define SDW_SHIM2_INTEL_VS_ACTMCTL_DOAISE BIT(5)
+
/**
* struct sdw_intel_stream_params_data: configuration passed during
* the @params_stream callback, e.g. for interaction with DSP
--
2.25.1