| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Socionext UniPhier AIO ALSA driver. |
| * |
| * Copyright (c) 2016-2018 Socionext Inc. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; version 2 |
| * of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #ifndef SND_UNIPHIER_AIO_H__ |
| #define SND_UNIPHIER_AIO_H__ |
| |
| #include <linux/spinlock.h> |
| #include <linux/types.h> |
| #include <sound/pcm.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dai.h> |
| |
| struct platform_device; |
| |
| enum ID_PORT_TYPE { |
| PORT_TYPE_UNKNOWN, |
| PORT_TYPE_I2S, |
| PORT_TYPE_SPDIF, |
| PORT_TYPE_EVE, |
| PORT_TYPE_CONV, |
| }; |
| |
| enum ID_PORT_DIR { |
| PORT_DIR_OUTPUT, |
| PORT_DIR_INPUT, |
| }; |
| |
| enum IEC61937_PC { |
| IEC61937_PC_AC3 = 0x0001, |
| IEC61937_PC_PAUSE = 0x0003, |
| IEC61937_PC_MPA = 0x0004, |
| IEC61937_PC_MP3 = 0x0005, |
| IEC61937_PC_DTS1 = 0x000b, |
| IEC61937_PC_DTS2 = 0x000c, |
| IEC61937_PC_DTS3 = 0x000d, |
| IEC61937_PC_AAC = 0x0007, |
| }; |
| |
| /* IEC61937 Repetition period of data-burst in IEC60958 frames */ |
| #define IEC61937_FRM_STR_AC3 1536 |
| #define IEC61937_FRM_STR_MPA 1152 |
| #define IEC61937_FRM_STR_MP3 1152 |
| #define IEC61937_FRM_STR_DTS1 512 |
| #define IEC61937_FRM_STR_DTS2 1024 |
| #define IEC61937_FRM_STR_DTS3 2048 |
| #define IEC61937_FRM_STR_AAC 1024 |
| |
| /* IEC61937 Repetition period of Pause data-burst in IEC60958 frames */ |
| #define IEC61937_FRM_PAU_AC3 3 |
| #define IEC61937_FRM_PAU_MPA 32 |
| #define IEC61937_FRM_PAU_MP3 32 |
| #define IEC61937_FRM_PAU_DTS1 3 |
| #define IEC61937_FRM_PAU_DTS2 3 |
| #define IEC61937_FRM_PAU_DTS3 3 |
| #define IEC61937_FRM_PAU_AAC 32 |
| |
| /* IEC61937 Pa and Pb */ |
| #define IEC61937_HEADER_SIGN 0x1f4e72f8 |
| |
| #define AUD_HW_PCMIN1 0 |
| #define AUD_HW_PCMIN2 1 |
| #define AUD_HW_PCMIN3 2 |
| #define AUD_HW_IECIN1 3 |
| #define AUD_HW_DIECIN1 4 |
| |
| #define AUD_NAME_PCMIN1 "aio-pcmin1" |
| #define AUD_NAME_PCMIN2 "aio-pcmin2" |
| #define AUD_NAME_PCMIN3 "aio-pcmin3" |
| #define AUD_NAME_IECIN1 "aio-iecin1" |
| #define AUD_NAME_DIECIN1 "aio-diecin1" |
| |
| #define AUD_HW_HPCMOUT1 0 |
| #define AUD_HW_PCMOUT1 1 |
| #define AUD_HW_PCMOUT2 2 |
| #define AUD_HW_PCMOUT3 3 |
| #define AUD_HW_EPCMOUT1 4 |
| #define AUD_HW_EPCMOUT2 5 |
| #define AUD_HW_EPCMOUT3 6 |
| #define AUD_HW_EPCMOUT6 9 |
| #define AUD_HW_HIECOUT1 10 |
| #define AUD_HW_IECOUT1 11 |
| #define AUD_HW_CMASTER 31 |
| |
| #define AUD_NAME_HPCMOUT1 "aio-hpcmout1" |
| #define AUD_NAME_PCMOUT1 "aio-pcmout1" |
| #define AUD_NAME_PCMOUT2 "aio-pcmout2" |
| #define AUD_NAME_PCMOUT3 "aio-pcmout3" |
| #define AUD_NAME_EPCMOUT1 "aio-epcmout1" |
| #define AUD_NAME_EPCMOUT2 "aio-epcmout2" |
| #define AUD_NAME_EPCMOUT3 "aio-epcmout3" |
| #define AUD_NAME_EPCMOUT6 "aio-epcmout6" |
| #define AUD_NAME_HIECOUT1 "aio-hiecout1" |
| #define AUD_NAME_IECOUT1 "aio-iecout1" |
| #define AUD_NAME_CMASTER "aio-cmaster" |
| #define AUD_NAME_HIECCOMPOUT1 "aio-hieccompout1" |
| #define AUD_NAME_IECCOMPOUT1 "aio-ieccompout1" |
| |
| #define AUD_GNAME_HDMI "aio-hdmi" |
| #define AUD_GNAME_LINE "aio-line" |
| #define AUD_GNAME_AUX "aio-aux" |
| #define AUD_GNAME_IEC "aio-iec" |
| |
| #define AUD_CLK_IO 0 |
| #define AUD_CLK_A1 1 |
| #define AUD_CLK_F1 2 |
| #define AUD_CLK_A2 3 |
| #define AUD_CLK_F2 4 |
| #define AUD_CLK_A 5 |
| #define AUD_CLK_F 6 |
| #define AUD_CLK_APLL 7 |
| #define AUD_CLK_RX0 8 |
| #define AUD_CLK_USB0 9 |
| #define AUD_CLK_HSC0 10 |
| |
| #define AUD_PLL_A1 0 |
| #define AUD_PLL_F1 1 |
| #define AUD_PLL_A2 2 |
| #define AUD_PLL_F2 3 |
| #define AUD_PLL_APLL 4 |
| #define AUD_PLL_RX0 5 |
| #define AUD_PLL_USB0 6 |
| #define AUD_PLL_HSC0 7 |
| |
| #define AUD_PLLDIV_1_2 0 |
| #define AUD_PLLDIV_1_3 1 |
| #define AUD_PLLDIV_1_1 2 |
| #define AUD_PLLDIV_2_3 3 |
| |
| #define AUD_RING_SIZE (128 * 1024) |
| |
| #define AUD_MIN_FRAGMENT 4 |
| #define AUD_MAX_FRAGMENT 8 |
| #define AUD_MIN_FRAGMENT_SIZE (4 * 1024) |
| #define AUD_MAX_FRAGMENT_SIZE (16 * 1024) |
| |
| /* |
| * This is a selector for virtual register map of AIO. |
| * |
| * map: Specify the index of virtual register map. |
| * hw : Specify the ID of real register map, selector uses this value. |
| * A meaning of this value depends specification of SoC. |
| */ |
| struct uniphier_aio_selector { |
| int map; |
| int hw; |
| }; |
| |
| /** |
| * 'SoftWare MAPping' setting of UniPhier AIO registers. |
| * |
| * We have to setup 'virtual' register maps to access 'real' registers of AIO. |
| * This feature is legacy and meaningless but AIO needs this to work. |
| * |
| * Each hardware blocks have own virtual register maps as following: |
| * |
| * Address Virtual Real |
| * ------- --------- --------------- |
| * 0x12000 DMAC map0 --> [selector] --> DMAC hardware 3 |
| * 0x12080 DMAC map1 --> [selector] --> DMAC hardware 1 |
| * ... |
| * 0x42000 Port map0 --> [selector] --> Port hardware 1 |
| * 0x42400 Port map1 --> [selector] --> Port hardware 2 |
| * ... |
| * |
| * ch : Input or output channel of DMAC |
| * rb : Ring buffer |
| * iport: PCM input port |
| * iif : Input interface |
| * oport: PCM output port |
| * oif : Output interface |
| * och : Output channel of DMAC for sampling rate converter |
| * |
| * These are examples for sound data paths: |
| * |
| * For caputure device: |
| * (outer of AIO) -> iport -> iif -> ch -> rb -> (CPU) |
| * For playback device: |
| * (CPU) -> rb -> ch -> oif -> oport -> (outer of AIO) |
| * For sampling rate converter device: |
| * (CPU) -> rb -> ch -> oif -> (HW SRC) -> iif -> och -> orb -> (CPU) |
| */ |
| struct uniphier_aio_swmap { |
| int type; |
| int dir; |
| |
| struct uniphier_aio_selector ch; |
| struct uniphier_aio_selector rb; |
| struct uniphier_aio_selector iport; |
| struct uniphier_aio_selector iif; |
| struct uniphier_aio_selector oport; |
| struct uniphier_aio_selector oif; |
| struct uniphier_aio_selector och; |
| }; |
| |
| struct uniphier_aio_spec { |
| const char *name; |
| const char *gname; |
| struct uniphier_aio_swmap swm; |
| }; |
| |
| struct uniphier_aio_pll { |
| bool enable; |
| unsigned int freq; |
| }; |
| |
| struct uniphier_aio_chip_spec { |
| const struct uniphier_aio_spec *specs; |
| int num_specs; |
| const struct uniphier_aio_pll *plls; |
| int num_plls; |
| struct snd_soc_dai_driver *dais; |
| int num_dais; |
| |
| /* DMA access mode, this is workaround for DMA hungup */ |
| int addr_ext; |
| }; |
| |
| struct uniphier_aio_sub { |
| struct uniphier_aio *aio; |
| |
| /* Guard sub->rd_offs and wr_offs from IRQ handler. */ |
| spinlock_t lock; |
| |
| const struct uniphier_aio_swmap *swm; |
| const struct uniphier_aio_spec *spec; |
| |
| /* For PCM audio */ |
| struct snd_pcm_substream *substream; |
| struct snd_pcm_hw_params params; |
| |
| /* For compress audio */ |
| struct snd_compr_stream *cstream; |
| struct snd_compr_params cparams; |
| unsigned char *compr_area; |
| dma_addr_t compr_addr; |
| size_t compr_bytes; |
| int pass_through; |
| enum IEC61937_PC iec_pc; |
| bool iec_header; |
| |
| /* Both PCM and compress audio */ |
| bool use_mmap; |
| int setting; |
| int running; |
| u64 rd_offs; |
| u64 wr_offs; |
| u32 threshold; |
| u64 rd_org; |
| u64 wr_org; |
| u64 rd_total; |
| u64 wr_total; |
| }; |
| |
| struct uniphier_aio { |
| struct uniphier_aio_chip *chip; |
| |
| struct uniphier_aio_sub sub[2]; |
| |
| unsigned int fmt; |
| /* Set one of AUD_CLK_X */ |
| int clk_in; |
| int clk_out; |
| /* Set one of AUD_PLL_X */ |
| int pll_in; |
| int pll_out; |
| /* Set one of AUD_PLLDIV_X */ |
| int plldiv; |
| }; |
| |
| struct uniphier_aio_chip { |
| struct platform_device *pdev; |
| const struct uniphier_aio_chip_spec *chip_spec; |
| |
| struct uniphier_aio *aios; |
| int num_aios; |
| struct uniphier_aio_pll *plls; |
| int num_plls; |
| |
| struct clk *clk; |
| struct reset_control *rst; |
| struct regmap *regmap; |
| int active; |
| }; |
| |
| static inline struct uniphier_aio *uniphier_priv(struct snd_soc_dai *dai) |
| { |
| struct uniphier_aio_chip *chip = snd_soc_dai_get_drvdata(dai); |
| |
| return &chip->aios[dai->id]; |
| } |
| |
| int uniphier_aiodma_soc_register_platform(struct platform_device *pdev); |
| extern const struct snd_compr_ops uniphier_aio_compr_ops; |
| |
| int uniphier_aio_dai_probe(struct snd_soc_dai *dai); |
| int uniphier_aio_dai_remove(struct snd_soc_dai *dai); |
| int uniphier_aio_dai_suspend(struct snd_soc_dai *dai); |
| int uniphier_aio_dai_resume(struct snd_soc_dai *dai); |
| int uniphier_aio_probe(struct platform_device *pdev); |
| int uniphier_aio_remove(struct platform_device *pdev); |
| extern const struct snd_soc_dai_ops uniphier_aio_i2s_ops; |
| extern const struct snd_soc_dai_ops uniphier_aio_spdif_ops; |
| |
| u64 aio_rb_cnt(struct uniphier_aio_sub *sub); |
| u64 aio_rbt_cnt_to_end(struct uniphier_aio_sub *sub); |
| u64 aio_rb_space(struct uniphier_aio_sub *sub); |
| u64 aio_rb_space_to_end(struct uniphier_aio_sub *sub); |
| |
| int aio_chip_set_pll(struct uniphier_aio_chip *chip, int pll_id, |
| unsigned int freq); |
| void aio_chip_init(struct uniphier_aio_chip *chip); |
| int aio_init(struct uniphier_aio_sub *sub); |
| void aio_port_reset(struct uniphier_aio_sub *sub); |
| int aio_port_set_rate(struct uniphier_aio_sub *sub, int rate); |
| int aio_port_set_fmt(struct uniphier_aio_sub *sub); |
| int aio_port_set_clk(struct uniphier_aio_sub *sub); |
| int aio_port_set_param(struct uniphier_aio_sub *sub, int pass_through, |
| const struct snd_pcm_hw_params *params); |
| void aio_port_set_enable(struct uniphier_aio_sub *sub, int enable); |
| int aio_if_set_param(struct uniphier_aio_sub *sub, int pass_through); |
| int aio_oport_set_stream_type(struct uniphier_aio_sub *sub, |
| enum IEC61937_PC pc); |
| void aio_src_reset(struct uniphier_aio_sub *sub); |
| int aio_src_set_param(struct uniphier_aio_sub *sub, |
| const struct snd_pcm_hw_params *params); |
| int aio_srcif_set_param(struct uniphier_aio_sub *sub); |
| int aio_srcch_set_param(struct uniphier_aio_sub *sub); |
| void aio_srcch_set_enable(struct uniphier_aio_sub *sub, int enable); |
| |
| int aiodma_ch_set_param(struct uniphier_aio_sub *sub); |
| void aiodma_ch_set_enable(struct uniphier_aio_sub *sub, int enable); |
| int aiodma_rb_set_threshold(struct uniphier_aio_sub *sub, u64 size, u32 th); |
| int aiodma_rb_set_buffer(struct uniphier_aio_sub *sub, u64 start, u64 end, |
| int period); |
| void aiodma_rb_sync(struct uniphier_aio_sub *sub, u64 start, u64 size, |
| int period); |
| bool aiodma_rb_is_irq(struct uniphier_aio_sub *sub); |
| void aiodma_rb_clear_irq(struct uniphier_aio_sub *sub); |
| |
| #endif /* SND_UNIPHIER_AIO_H__ */ |
