/**************************************************************************** * drivers/audio/cxd56.c * * Copyright 2019 Sony Semiconductor Solutions Corporation * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include "cxd56.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ #define REG_BASE 0x0e300000 #define REG_BASE_INT 0xe0045000 #define CXD56_GEN_MASK(len, pos) (((len) == 32) ? 0xffffffff : \ ((1 << (len)) - 1) << (pos)) #define CXD56_IRQ1_BIT_MIC (1 << 6) /* AU0 */ #define CXD56_IRQ1_BIT_I2S1 (1 << 7) /* AU1 */ #define CXD56_VOL_MIN -1020 #define CXD56_VOL_MAX 120 #define CXD56_VOL_MUTE (CXD56_VOL_MIN - 1) #define CXD56_VOL_RANGE ((CXD56_VOL_MAX - CXD56_VOL_MIN) / 2) #define CXD56_VOL_NX_TO_CXD56(v) ((int)((float)((v) / 1000.0) * CXD56_VOL_RANGE) \ + CXD56_VOL_MIN + CXD56_VOL_RANGE) #define CXD56_VOL_WAIT_TIME 20 #define CXD56_VOL_TO_REG(vol) (((vol) / 5) & 0xff) #define CXD56_VOL_MUTE_REG 0x33 #define CXD56_VOL_MUTE_TIME(vol, cycles) \ (((CXD56_VOL_TO_REG(vol) - CXD56_VOL_MUTE_REG) & 0xff) \ * ((cycles) + 1) * 4 / 48 * 1000) #define CXD56_IN_CHANNELS_MAX 8 #define CXD56_OUT_CHANNELS_MAX 2 /* Samplerates field is split into low and high byte */ #define CXD56_SUPP_RATES_L (AUDIO_SAMP_RATE_8K | AUDIO_SAMP_RATE_11K | \ AUDIO_SAMP_RATE_16K | AUDIO_SAMP_RATE_22K | \ AUDIO_SAMP_RATE_32K | AUDIO_SAMP_RATE_44K | \ AUDIO_SAMP_RATE_48K) #define CXD56_SUPP_RATES_H ((AUDIO_SAMP_RATE_96K | AUDIO_SAMP_RATE_128K | \ AUDIO_SAMP_RATE_192K) >> 8) #define CXD56_SUPP_RATES (CXD56_SUPP_RATES_L | CXD56_SUPP_RATES_H) /* Mic selections */ #define CXD56_ACA_MIC_AMIC 1 /* Analog MIC */ /* External XTAL */ #define CXD56_AUD_MCLK_EXT (0u<<16) /* Oscillator modes */ #define CXD56_ACA_OSC_24_576MHZ 1 /* 24.576MHz */ #define CXD56_ACA_OSC_24_576MHZ_HIRES 2 /* 24.576MHz, Hi-Res */ #define CXD56_ACA_OSC_49_152MHZ 3 /* 49.152MHz */ #define CXD56_ACA_OSC_49_152MHZ_HIRES 4 /* 49.152MHz, Hi-Res */ /* Control IDs for external as_aca_control */ #define CXD56_ACA_CTL_CHECK_ID 0 #define CXD56_ACA_CTL_POWER_ON_COMMON 1 #define CXD56_ACA_CTL_POWER_ON_OUTPUT 3 #define CXD56_ACA_CTL_SET_SMASTER 5 #define CXD56_ACA_CTL_POWER_OFF_COMMON 6 #define CXD56_ACA_CTL_POWER_OFF_OUTPUT 8 #define CXD56_ACA_CTL_SET_OUTPUT_DEVICE 13 #define CXD56_EXP_REVID 0x20 #define CXD56_EXP_DEVICEID 0x02 #define CXD56_OUT_DEV_OFF (0) #define CXD56_OUT_DEV_SP (1) #define CXD56_SMSTR_MODE_FS_16 1 #define CXD56_SMSTR_MODE_FS_32 2 #define CXD56_SMSTR_MCK_FS_512 1 #define CXD56_SMSTR_MCK_FS_1024 2 #define CXD56_SMSTR_CHSEL_NORMAL 1 #define CXD56_SMSTR_PWMMD_BOTH 2 #define CXD56_ACA_OUT_OFF 6 #define CXD56_ACA_PWMOUT_UNKNOWN 0 #define CXD56_ACA_SP_DELAY_SEL_UNKNOWN 0 #define CXD56_ACA_SP_LOOP_MODE_UNKNOWN 0 #define CXD56_ACA_SP_DLY_FREE_UNKNOWN 0 #define CXD56_AUDAT_SEL_BUSIF1 4 #define CXD56_AUDAT_SEL_BUSIF2 4 #define CXD56_DMA_MSTATE_BUF_EMPTY 3 #define CXD56_DMA_TIMEOUT 10000 #define CXD56_DMA_START_RETRY_CNT 10 #define CXD56_DMA_SMP_WAIT_HIRES 10 /* usec per sample. */ #define CXD56_DMA_SMP_WAIT_NORMALT 40 /* usec per sample. */ #define CXD56_DMA_CMD_FIFO_NOT_FULL 1 #define CXD56_DMA_START_ADDR_MASK 0x3fffffff /* Queue extensions */ #define dq_push(q,n) (dq_addlast((dq_entry_t*)n,(q))) #define dq_pop(q) (dq_remfirst(q)) #define dq_clear(q) \ do \ { \ dq_remlast(q); \ } \ while (!dq_empty(q)) /**************************************************************************** * Public Function Prototypes ****************************************************************************/ /* Located in arch/arm/src/cxd56xx/cxd56_clock.c */ extern void cxd56_audio_clock_enable(uint32_t clk, uint32_t div); extern void cxd56_audio_clock_disable(void); extern bool cxd56_audio_clock_is_enabled(void); /* Located in arch/arm/src/cxd56xx/cxd56_farapistub.S */ extern uint32_t as_aca_control(uint8_t type, uint32_t param); /**************************************************************************** * Private Types ****************************************************************************/ /* CXD56 Audio register value definition */ struct cxd56_aureg_s { uint32_t addr; uint8_t pos; uint8_t len; }; typedef struct cxd56_aureg_s cxd56_aureg_t; /* DMA interrupt types */ enum cxd56_dma_int_e { CXD56_DMA_INT_DONE = 0x01, CXD56_DMA_INT_ERR = 0x02, CXD56_DMA_INT_SMP = 0x10, CXD56_DMA_INT_CMB = 0x20 }; /* Volume setting IDs */ enum cxd56_vol_id_e { CXD56_VOL_ID_MIXER_IN1, /* SDIN1_VOL */ CXD56_VOL_ID_MIXER_IN2, /* SDIN2_VOL */ CXD56_VOL_ID_MIXER_OUT /* DAC_VOL */ }; struct cxd56_aca_pwon_param_s { uint8_t osc_mode; uint8_t mic_dev; uint8_t gpo_ds; uint8_t ad_data_ds; uint8_t dmic_clk_ds; uint8_t mclk_ds; }; struct cxd56_aca_smaster_param_s { uint8_t mode; uint8_t mck_fs; uint8_t pwm_mode; uint8_t ch_sel; uint8_t out2dly; }; struct cxd56_aca_pwoutput_param_s { uint8_t out_dev; uint8_t pwm_out[2]; uint8_t sp_delay; uint8_t loop_mode; uint8_t mode; uint8_t sp_dly_free; uint8_t sp_spliton; uint8_t sp_drv; }; /**************************************************************************** * Private Function Prototypes ****************************************************************************/ /* Interface functions */ #ifdef CONFIG_AUDIO_MULTI_SESSION static int cxd56_configure(FAR struct audio_lowerhalf_s *lower, FAR void *session, FAR const struct audio_caps_s *caps); static int cxd56_start(FAR struct audio_lowerhalf_s *lower, FAR void *session); #ifndef CONFIG_AUDIO_EXCLUDE_STOP static int cxd56_stop(FAR struct audio_lowerhalf_s *lower, FAR void *session); #endif /* CONFIG_AUDIO_EXCLUDE_STOP */ #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME static int cxd56_pause(FAR struct audio_lowerhalf_s *lower, FAR void *session); static int cxd56_resume(FAR struct audio_lowerhalf_s *lower, FAR void *session); #endif /* CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME */ static int cxd56_reserve(FAR struct audio_lowerhalf_s *lower, FAR void** session); static int cxd56_release(FAR struct audio_lowerhalf_s *lower, FAR void *session); #else static int cxd56_configure(FAR struct audio_lowerhalf_s *lower, FAR const struct audio_caps_s *caps); static int cxd56_start(FAR struct audio_lowerhalf_s *lower); #ifndef CONFIG_AUDIO_EXCLUDE_STOP static int cxd56_stop(FAR struct audio_lowerhalf_s *lower); #endif /* CONFIG_AUDIO_EXCLUDE_STOP */ #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME static int cxd56_pause(FAR struct audio_lowerhalf_s *lower); static int cxd56_resume(FAR struct audio_lowerhalf_s *lower); #endif /* CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME */ static int cxd56_reserve(FAR struct audio_lowerhalf_s *lower); static int cxd56_release(FAR struct audio_lowerhalf_s *lower); #endif /* CONFIG_AUDIO_MULTI_SESSION */ static int cxd56_getcaps(FAR struct audio_lowerhalf_s *lower, int type, FAR struct audio_caps_s *caps); static int cxd56_shutdown(FAR struct audio_lowerhalf_s *lower); static int cxd56_enqueuebuffer(FAR struct audio_lowerhalf_s *lower, FAR struct ap_buffer_s *apb); static int cxd56_cancelbuffer(FAR struct audio_lowerhalf_s *lower, FAR struct ap_buffer_s *apb); static int cxd56_ioctl(FAR struct audio_lowerhalf_s *lower, int cmd, unsigned long arg); /* Non-interface functions */ static void cxd56_attach_irq(bool attach); static void cxd56_enable_irq(bool enable); static uint32_t cxd56_get_i2s_rate(uint32_t samplerate); static int cxd56_init_dma(FAR struct cxd56_dev_s *dev); static void cxd56_init_i2s1_output(uint8_t bits); static int cxd56_init_worker(FAR struct audio_lowerhalf_s *lower); static uint32_t cxd56_power_off(FAR struct cxd56_dev_s *dev); static uint32_t cxd56_power_on(FAR struct cxd56_dev_s *dev); static uint32_t cxd56_power_on_aca(uint32_t samplerate); static uint32_t cxd56_power_on_analog_output(FAR struct cxd56_dev_s *dev); static void cxd56_power_on_i2s1(FAR struct cxd56_dev_s *dev); static int cxd56_start_dma(FAR struct cxd56_dev_s *dev); static int cxd56_stop_dma(FAR struct cxd56_dev_s *priv); static void cxd56_set_dma_int_en(bool enabled); static void cxd56_set_dma_running(cxd56_dmahandle_t handle, bool running); static int cxd56_set_volume(enum cxd56_vol_id_e id, int16_t vol); static void cxd56_swap_buffer_rl(uint32_t addr, uint16_t size); static void *cxd56_workerthread(pthread_addr_t pvarg); /**************************************************************************** * Private Data ****************************************************************************/ static struct cxd56_dev_s *g_dev[CXD56_AUDIO_DMA_COUNT] = { NULL }; static uint16_t g_codec_start_count = 0; static const struct audio_ops_s g_audioops = { cxd56_getcaps, /* getcaps */ cxd56_configure, /* configure */ cxd56_shutdown, /* shutdown */ cxd56_start, /* start */ #ifndef CONFIG_AUDIO_EXCLUDE_STOP cxd56_stop, /* stop */ #endif #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME cxd56_pause, /* pause */ cxd56_resume, /* resume */ #endif NULL, /* alloc_buffer */ NULL, /* free_buffer */ cxd56_enqueuebuffer, /* enqueue_buffer */ cxd56_cancelbuffer, /* cancel_buffer */ cxd56_ioctl, /* ioctl */ NULL, /* read */ NULL, /* write */ cxd56_reserve, /* reserve */ cxd56_release /* release */ }; /* AC registers */ const cxd56_aureg_t REG_AC_REVID = { REG_BASE + 0x0000, 16, 8 }; const cxd56_aureg_t REG_AC_DEVICEID = { REG_BASE + 0x0000, 24, 8 }; const cxd56_aureg_t REG_AC_PDN_DSPB = { REG_BASE + 0x0100, 16, 1 }; const cxd56_aureg_t REG_AC_PDN_ANC = { REG_BASE + 0x0100, 17, 1 }; const cxd56_aureg_t REG_AC_PDN_DNC1 = { REG_BASE + 0x0100, 18, 1 }; const cxd56_aureg_t REG_AC_PDN_DNC2 = { REG_BASE + 0x0100, 19, 1 }; const cxd56_aureg_t REG_AC_PDN_SMSTR = { REG_BASE + 0x0100, 20, 1 }; const cxd56_aureg_t REG_AC_PDN_DSPS1 = { REG_BASE + 0x0100, 21, 1 }; const cxd56_aureg_t REG_AC_PDN_DSPS2 = { REG_BASE + 0x0100, 22, 1 }; const cxd56_aureg_t REG_AC_PDN_DSPC = { REG_BASE + 0x0100, 23, 1 }; const cxd56_aureg_t REG_AC_FS_FS = { REG_BASE + 0x0104, 0, 1 }; const cxd56_aureg_t REG_AC_DECIM0 = { REG_BASE + 0x0104, 16, 1 }; const cxd56_aureg_t REG_AC_DECIM1 = { REG_BASE + 0x0104, 17, 1 }; const cxd56_aureg_t REG_AC_SDES_EN = { REG_BASE + 0x0104, 18, 1 }; const cxd56_aureg_t REG_AC_MCK_AMBMSTR_EN = { REG_BASE + 0x0104, 19, 1 }; const cxd56_aureg_t REG_AC_AU_DAT_SEL2 = { REG_BASE + 0x0108, 16, 3 }; const cxd56_aureg_t REG_AC_AU_DAT_SEL1 = { REG_BASE + 0x0108, 20, 3 }; const cxd56_aureg_t REG_AC_AU_COD_INSEL3 = { REG_BASE + 0x0108, 24, 2 }; const cxd56_aureg_t REG_AC_AU_COD_INSEL2 = { REG_BASE + 0x0108, 26, 2 }; const cxd56_aureg_t REG_AC_DSR_RATE = { REG_BASE + 0x0200, 0, 3 }; const cxd56_aureg_t REG_AC_DIGSFT = { REG_BASE + 0x0200, 12, 1 }; const cxd56_aureg_t REG_AC_SRC1 = { REG_BASE + 0x0200, 16, 2 }; const cxd56_aureg_t REG_AC_SRC1IN_SEL = { REG_BASE + 0x0200, 18, 2 }; const cxd56_aureg_t REG_AC_SRC2IN_SEL = { REG_BASE + 0x0200, 22, 2 }; const cxd56_aureg_t REG_AC_DIF1 = { REG_BASE + 0x0200, 27, 1 }; const cxd56_aureg_t REG_AC_SD1MASTER = { REG_BASE + 0x0200, 29, 1 }; const cxd56_aureg_t REG_AC_SDCK_OUTENX = { REG_BASE + 0x0200, 30, 1 }; const cxd56_aureg_t REG_AC_SPC_EN = { REG_BASE + 0x021c, 15, 1 }; const cxd56_aureg_t REG_AC_ALC_EN = { REG_BASE + 0x021c, 31, 1 }; const cxd56_aureg_t REG_AC_CS_VOL = { REG_BASE + 0x0228, 0, 7 }; const cxd56_aureg_t REG_AC_CS_SIGN = { REG_BASE + 0x0228, 7, 1 }; const cxd56_aureg_t REG_AC_SDIN1_VOL = { REG_BASE + 0x0228, 16, 8 }; const cxd56_aureg_t REG_AC_SDIN2_VOL = { REG_BASE + 0x0228, 24, 8 }; const cxd56_aureg_t REG_AC_SDIN1_EN = { REG_BASE + 0x022c, 0, 1 }; const cxd56_aureg_t REG_AC_SDIN2_EN = { REG_BASE + 0x022c, 1, 1 }; const cxd56_aureg_t REG_AC_SDOUT1_EN = { REG_BASE + 0x022c, 2, 1 }; const cxd56_aureg_t REG_AC_SDOUT2_EN = { REG_BASE + 0x022c, 3, 1 }; const cxd56_aureg_t REG_AC_BLF_EN = { REG_BASE + 0x022c, 5, 1 }; const cxd56_aureg_t REG_AC_DAC_VOL = { REG_BASE + 0x022c, 8, 8 }; const cxd56_aureg_t REG_AC_DNC2_MUTE = { REG_BASE + 0x0304, 22, 1 }; const cxd56_aureg_t REG_AC_DNC2_START = { REG_BASE + 0x0304, 23, 1 }; const cxd56_aureg_t REG_AC_DNC1_MUTE = { REG_BASE + 0x0304, 30, 1 }; const cxd56_aureg_t REG_AC_DNC1_START = { REG_BASE + 0x0304, 31, 1 }; const cxd56_aureg_t REG_AC_NSX2 = { REG_BASE + 0x0340, 30, 1 }; const cxd56_aureg_t REG_AC_NSPMUTE = { REG_BASE + 0x0340, 31, 1 }; const cxd56_aureg_t REG_AC_NSDD = { REG_BASE + 0x0344, 0, 20 }; const cxd56_aureg_t REG_AC_TEST_OUT_SEL0 = { REG_BASE + 0x0400, 6, 1 }; const cxd56_aureg_t REG_AC_DSPRAM4_CLR = { REG_BASE + 0x0400, 28, 1 }; const cxd56_aureg_t REG_AC_DSPRAM2_CLR = { REG_BASE + 0x0400, 29, 1 }; const cxd56_aureg_t REG_AC_DSPRAM1_CLR = { REG_BASE + 0x0400, 31, 1 }; const cxd56_aureg_t REG_AC_S_RESET = { REG_BASE + 0x0400, 16, 1 }; const cxd56_aureg_t REG_AC_PDM_OUT_EN = { REG_BASE + 0x0500, 16, 1 }; const cxd56_aureg_t REG_AC_FS_CLK_EN = { REG_BASE + 0x0500, 24, 1 }; const cxd56_aureg_t REG_AC_DEQ_EN = { REG_BASE + 0x0600, 31, 1 }; const cxd56_aureg_t REG_AC_LR_SWAP1 = { REG_BASE + 0x0678, 0, 1 }; /* BCA registers */ const cxd56_aureg_t REG_MIC_RTD_TRG = { REG_BASE + 0x1008, 0, 3 }; const cxd56_aureg_t REG_MIC_CH8_SEL = { REG_BASE + 0x1010, 0, 4 }; const cxd56_aureg_t REG_MIC_MON_START = { REG_BASE + 0x1014, 3, 1 }; const cxd56_aureg_t REG_MIC_MON_ERROR_SET = { REG_BASE + 0x1014, 8, 8 }; const cxd56_aureg_t REG_MIC_MON_MONBUF = { REG_BASE + 0x1014, 16, 4 }; const cxd56_aureg_t REG_I2S1_OUT_START_ADR = { REG_BASE + 0x10c0, 0, 30 }; const cxd56_aureg_t REG_I2S1_OUT_SAMPLE_NO = { REG_BASE + 0x10c4, 0, 32 }; const cxd56_aureg_t REG_I2S1_OUT_RTD_TRG = { REG_BASE + 0x10c8, 0, 3 }; const cxd56_aureg_t REG_I2S1_OUT_BITWT = { REG_BASE + 0x10cc, 0, 1 }; const cxd56_aureg_t REG_I2S1_OUT_SD1_R_SEL = { REG_BASE + 0x10d0, 0, 2 }; const cxd56_aureg_t REG_I2S1_OUT_SD1_L_SEL = { REG_BASE + 0x10d0, 4, 2 }; const cxd56_aureg_t REG_I2S1_OUT_MON_START = { REG_BASE + 0x10d4, 0, 1 }; const cxd56_aureg_t REG_I2S1_OUT_MON_ERRSET = { REG_BASE + 0x10d4, 8, 8 }; const cxd56_aureg_t REG_I2S1_OUT_MON_MONBUF = { REG_BASE + 0x10d4, 16, 4 }; const cxd56_aureg_t REG_I2S_ENSEL = { REG_BASE + 0x1110, 0, 1 }; const cxd56_aureg_t REG_CLK_EN_AHBMSTR_MIC = { REG_BASE + 0x11f0, 0, 1 }; const cxd56_aureg_t REG_CLK_EN_AHBMSTR_I2S1 = { REG_BASE + 0x11f0, 1, 1 }; const cxd56_aureg_t REG_MIC_INT_CTRL_DONE = { REG_BASE + 0x1140, 0, 1 }; const cxd56_aureg_t REG_MIC_INT_CTRL_ERR = { REG_BASE + 0x1140, 1, 1 }; const cxd56_aureg_t REG_MIC_INT_CTRL_CMB = { REG_BASE + 0x1140, 3, 1 }; const cxd56_aureg_t REG_I2S1_INT_CTRL_DONE = { REG_BASE + 0x1144, 0, 1 }; const cxd56_aureg_t REG_I2S1_INT_CTRL_ERR = { REG_BASE + 0x1144, 1, 1 }; const cxd56_aureg_t REG_I2S1_INT_CTRL_SMP = { REG_BASE + 0x1144, 4, 1 }; const cxd56_aureg_t REG_I2S1_INT_CTRL_CMB = { REG_BASE + 0x1144, 5, 1 }; const cxd56_aureg_t REG_MIC_INT_MASK_DONE = { REG_BASE + 0x114c, 0, 1 }; const cxd56_aureg_t REG_MIC_INT_MASK_ERR = { REG_BASE + 0x114c, 1, 1 }; const cxd56_aureg_t REG_MIC_INT_MASK_CMB = { REG_BASE + 0x114c, 3, 1 }; const cxd56_aureg_t REG_I2S1_INT_MASK_DONE = { REG_BASE + 0x1150, 0, 1 }; const cxd56_aureg_t REG_I2S1_INT_MASK_ERR = { REG_BASE + 0x1150, 1, 1 }; const cxd56_aureg_t REG_I2S1_INT_MASK_SMP = { REG_BASE + 0x1150, 4, 1 }; const cxd56_aureg_t REG_I2S1_INT_MASK_CMB = { REG_BASE + 0x1150, 5, 1 }; const cxd56_aureg_t REG_INT_M_I2S1_BCL_ERR1 = { REG_BASE + 0x1158, 8, 1 }; const cxd56_aureg_t REG_INT_M_I2S1_BCL_ERR2 = { REG_BASE + 0x1158, 9, 1 }; const cxd56_aureg_t REG_INT_M_OVF_SMASL = { REG_BASE + 0x1158, 17, 1 }; const cxd56_aureg_t REG_INT_M_OVF_SMASR = { REG_BASE + 0x1158, 18, 1 }; const cxd56_aureg_t REG_INT_HRESP_ERR = { REG_BASE + 0x1160, 0, 1 }; const cxd56_aureg_t REG_AHB_MASTER_MIC_MASK = { REG_BASE + 0x1730, 0, 32 }; const cxd56_aureg_t REG_AHB_MASTER_I2S1_MASK = { REG_BASE + 0x1f30, 0, 32 }; /* Interrupt registers */ const cxd56_aureg_t REG_INT_IRQ1 = { REG_BASE_INT + 0x30 + 3 * 4, 0, 32 }; const cxd56_aureg_t REG_INT_EN1 = { REG_BASE_INT + 0x10 + 3 * 4, 0, 32 }; const cxd56_aureg_t REG_INT_EN1_BITS = { REG_BASE_INT + 0x10 + 3 * 4, 6, 4 }; /**************************************************************************** * Private Functions ****************************************************************************/ static uint32_t read_reg_addr(const cxd56_aureg_t *reg) { uint32_t mask; mask = CXD56_GEN_MASK(reg->len, reg->pos); return (*((volatile uint32_t *)reg->addr) & mask) >> reg->pos; } static void write_reg_addr(const cxd56_aureg_t *reg, uint32_t val) { uint32_t mask; uint32_t curr; mask = CXD56_GEN_MASK(reg->len, reg->pos); curr = *((volatile uint32_t *)reg->addr) & ~mask; *((volatile uint32_t *)reg->addr) = curr | ((val << reg->pos) & mask); } #define read_reg(reg) (read_reg_addr(&(reg))) #define read_reg32(reg) (*((volatile uint32_t *)(reg).addr)) #define write_reg(reg, val) (write_reg_addr(&(reg), (val))) #define write_reg32(reg, val) (*((volatile uint32_t *)(reg).addr) = (val)) /* Aquire semaphore */ static void cxd56_take_sem(sem_t *sem) { int ret; do { ret = nxsem_wait(sem); if (ret != 0 && ret != -EINTR) { auderr("cxd56_take_sem failed. (%d)\n", ret); } } while (ret == -EINTR); } /* Release semaphore */ static void cxd56_give_sem(sem_t *sem) { int ret; do { ret = nxsem_post(sem); if (ret != 0 && ret != -EINTR) { auderr("cxd56_give_sem failed. (%d)\n", ret); } } while (ret == -EINTR); } static void cxd56_int_clear(cxd56_dmahandle_t handle, uint8_t intbits) { if (handle == CXD56_AUDIO_DMA_I2S0_DOWN) { write_reg32(REG_I2S1_INT_CTRL_DONE, intbits); } } static void cxd56_int_mask(cxd56_dmahandle_t handle, uint8_t intbits) { if (handle == CXD56_AUDIO_DMA_I2S0_DOWN) { intbits |= read_reg32(REG_I2S1_INT_MASK_DONE); write_reg32(REG_I2S1_INT_MASK_DONE, intbits); } } static void cxd56_int_unmask(cxd56_dmahandle_t handle, uint8_t intbits) { uint32_t curr; if (handle == CXD56_AUDIO_DMA_I2S0_DOWN) { curr = read_reg32(REG_I2S1_INT_MASK_DONE); write_reg32(REG_I2S1_INT_MASK_DONE, curr & ~intbits); } } static void cxd56_int_unmask_ahb(cxd56_dmahandle_t handle) { if (handle == CXD56_AUDIO_DMA_I2S0_DOWN) { write_reg32(REG_AHB_MASTER_I2S1_MASK, 0x00000202); } } static uint32_t cxd56_int_get_state(cxd56_dmahandle_t handle) { if (handle == CXD56_AUDIO_DMA_I2S0_DOWN) { return (0x3f & read_reg32(REG_I2S1_INT_CTRL_DONE) & ~(read_reg32(REG_I2S1_INT_MASK_DONE))); } return 0; } static uint8_t cxd56_get_monbuf_state(cxd56_dmahandle_t handle) { if (handle == CXD56_AUDIO_DMA_I2S0_DOWN) { return read_reg(REG_I2S1_OUT_MON_MONBUF); } return 0; } static void cxd56_reset_channel_sel(cxd56_dmahandle_t handle) { uint32_t sel; if (handle == CXD56_AUDIO_DMA_I2S0_DOWN) { sel = read_reg32(REG_I2S1_OUT_SD1_R_SEL); write_reg32(REG_I2S1_OUT_SD1_R_SEL, 0xffffffff); write_reg32(REG_I2S1_OUT_SD1_R_SEL, sel); } } static void cxd56_dma_int_handler(void) { uint16_t ecode = CXD56_AUDIO_ECODE_DMA_HANDLE_INV; cxd56_dmahandle_t hdl; uint32_t int_irq = read_reg32(REG_INT_IRQ1); uint32_t int_i2s = cxd56_int_get_state(CXD56_AUDIO_DMA_I2S0_DOWN); if ((int_irq & CXD56_IRQ1_BIT_I2S1) && (int_i2s != 0)) { hdl = CXD56_AUDIO_DMA_I2S0_DOWN; write_reg32(REG_I2S1_INT_CTRL_DONE, int_i2s); if (int_i2s & (1 << REG_I2S1_INT_CTRL_DONE.pos)) { ecode = CXD56_AUDIO_ECODE_DMA_CMPLT; } if (int_i2s & (1 << REG_I2S1_INT_CTRL_ERR.pos)) { /* Mask and clear transfer error interrupt */ write_reg(REG_I2S1_INT_MASK_ERR, 1); write_reg(REG_I2S1_INT_CTRL_ERR, 1); ecode = CXD56_AUDIO_ECODE_DMA_TRANS; } if (int_i2s & (1 << REG_I2S1_INT_CTRL_CMB.pos)) { /* Mask and clear bus error interrupt */ write_reg(REG_I2S1_INT_MASK_CMB, 1); write_reg(REG_I2S1_INT_CTRL_CMB, 1); ecode = CXD56_AUDIO_ECODE_DMA_CMB; } } else { _warn("cxd56_dma_int_handler: Unhandled interrupt\n"); return; } if (ecode != CXD56_AUDIO_ECODE_DMA_HANDLE_INV) { struct audio_msg_s msg; struct cxd56_dev_s *dev; dev = g_dev[hdl]; /* Trigger new DMA job */ cxd56_take_sem(&dev->pendsem); if (dq_count(&dev->runningq) > 0) { FAR struct ap_buffer_s *apb; apb = (struct ap_buffer_s *) dq_pop(&dev->runningq); dev->dev.upper(dev->dev.priv, AUDIO_CALLBACK_DEQUEUE, apb, OK); } cxd56_give_sem(&dev->pendsem); if (dev->mq != NULL) { /* Request more data */ msg.msg_id = AUDIO_MSG_DATA_REQUEST; msg.u.data = 0; (void)nxmq_send(dev->mq, (FAR const char *) &msg, sizeof(msg), CONFIG_CXD56_MSG_PRIO); } if (ecode == CXD56_AUDIO_ECODE_DMA_TRANS) { /* Notify end of data */ if (dev->state != CXD56_DEV_STATE_PAUSED) { msg.msg_id = AUDIO_MSG_STOP; msg.u.data = 0; (void)nxmq_send(dev->mq, (FAR const char *)&msg, sizeof(msg), CONFIG_CXD56_MSG_PRIO); } } } } static void cxd56_attach_irq(bool attach) { if (attach) { irq_attach(CXD56_IRQ_AUDIO_0, (xcpt_t)cxd56_dma_int_handler, NULL); irq_attach(CXD56_IRQ_AUDIO_1, (xcpt_t)cxd56_dma_int_handler, NULL); irq_attach(CXD56_IRQ_AUDIO_2, (xcpt_t)cxd56_dma_int_handler, NULL); irq_attach(CXD56_IRQ_AUDIO_3, (xcpt_t)cxd56_dma_int_handler, NULL); } else { irq_detach(CXD56_IRQ_AUDIO_0); irq_detach(CXD56_IRQ_AUDIO_1); irq_detach(CXD56_IRQ_AUDIO_2); irq_detach(CXD56_IRQ_AUDIO_3); } } static void cxd56_enable_irq(bool enable) { if (enable) { up_enable_irq(CXD56_IRQ_AUDIO_0); up_enable_irq(CXD56_IRQ_AUDIO_1); up_enable_irq(CXD56_IRQ_AUDIO_2); } else { up_disable_irq(CXD56_IRQ_AUDIO_0); up_disable_irq(CXD56_IRQ_AUDIO_1); up_disable_irq(CXD56_IRQ_AUDIO_2); } } static int cxd56_set_volume(enum cxd56_vol_id_e id, int16_t vol) { int ret; if (vol == CXD56_VOL_MUTE) { vol = CXD56_VOL_MUTE_REG; } else { vol = CXD56_VOL_TO_REG(vol); } switch (id) { case CXD56_VOL_ID_MIXER_IN1: write_reg(REG_AC_SDIN1_VOL, vol); break; case CXD56_VOL_ID_MIXER_IN2: write_reg(REG_AC_SDIN2_VOL, vol); break; case CXD56_VOL_ID_MIXER_OUT: write_reg(REG_AC_DAC_VOL, vol); break; } if (vol == CXD56_VOL_MUTE_REG) { /* Disable analog out */ ret = as_aca_control(CXD56_ACA_CTL_SET_OUTPUT_DEVICE, (uint32_t)CXD56_OUT_DEV_OFF); if (ret != CXD56_AUDIO_ECODE_OK) { auderr("cxd56_set_volume analog out disable failed. (%d)\n", ret); ret = -EBUSY; goto error; } } else { /* Enable analog out */ ret = as_aca_control(CXD56_ACA_CTL_SET_OUTPUT_DEVICE, (uint32_t)CXD56_OUT_DEV_SP); if (ret != CXD56_AUDIO_ECODE_OK) { auderr("cxd56_set_volume analog out enable failed. (%d)\n", ret); ret = -EBUSY; goto error; } } ret = OK; error: return ret; } static void cxd56_init_i2s1_output(uint8_t bits) { write_reg(REG_I2S1_OUT_SD1_L_SEL, 1); write_reg(REG_I2S1_OUT_SD1_R_SEL, 0); write_reg(REG_I2S1_OUT_BITWT, (bits == 16)); write_reg(REG_CLK_EN_AHBMSTR_I2S1, 1); write_reg(REG_I2S1_OUT_START_ADR, 0); write_reg(REG_I2S1_OUT_SAMPLE_NO, 0); } static void cxd56_set_dma_int_en(bool enabled) { if (enabled) { write_reg(REG_INT_EN1_BITS, 0xf); write_reg(REG_INT_HRESP_ERR, 1); } else { write_reg32(REG_INT_EN1_BITS, 0x0); write_reg32(REG_INT_HRESP_ERR, 0); } } static void cxd56_set_dma_running(cxd56_dmahandle_t handle, bool running) { if (handle == CXD56_AUDIO_DMA_I2S0_DOWN) { write_reg(REG_I2S1_OUT_RTD_TRG, (running ? 0x01 : 0x04)); } } static int cxd56_init_dma(FAR struct cxd56_dev_s *dev) { int ret = CXD56_AUDIO_ECODE_OK; FAR struct cxd56_dev_s *priv = (FAR struct cxd56_dev_s *)dev; uint8_t ints = CXD56_DMA_INT_DONE | CXD56_DMA_INT_ERR | CXD56_DMA_INT_CMB; audinfo("cxd56_init_dma: state = %d, hdl = %d.\n", dev->state, dev->dma_handle); dq_clear(&dev->pendingq); dq_clear(&dev->runningq); /* Enable DMA */ write_reg(REG_AC_MCK_AMBMSTR_EN, 1); /* Setup output, bit width etc */ cxd56_init_i2s1_output(priv->bitwidth); /* Clear interrupt states */ cxd56_int_clear(dev->dma_handle, ints); /* Enable interrupts */ cxd56_int_unmask(dev->dma_handle, ints); cxd56_int_unmask_ahb(dev->dma_handle); cxd56_set_dma_int_en(true); return ret; } static uint32_t cxd56_get_i2s_rate(uint32_t samplerate) { if (samplerate <= 48000) { return 1; /* low */ } else if (samplerate <= 96000) { return 2; /* medium */ } return 3; /* high */ } static void cxd56_power_on_i2s1(FAR struct cxd56_dev_s *dev) { uint32_t rate; write_reg(REG_AC_PDN_DSPS1, 0); /* Power on SRC1 */ write_reg(REG_AC_SD1MASTER, CXD56_I2S1_MODE); /* I2S1 mode */ write_reg(REG_AC_DIF1, CXD56_I2S1_FORMAT); /* I2S1 format */ write_reg(REG_AC_LR_SWAP1, CXD56_I2S1_FORMAT); write_reg(REG_AC_TEST_OUT_SEL0, CXD56_I2S1_BYPASS); /* I2S1 bypass mode */ rate = cxd56_get_i2s_rate(CXD56_I2S1_DATA_RATE); write_reg(REG_AC_SRC1, rate); /* I2S1 rate */ } static uint32_t cxd56_power_on_aca(uint32_t samplerate) { struct cxd56_aca_pwon_param_s pwon_param; if (as_aca_control(CXD56_ACA_CTL_CHECK_ID, (uint32_t)NULL) != 0) { return CXD56_AUDIO_ECODE_ANA_CHKID; } if (samplerate > 48000) { pwon_param.osc_mode = (CXD56_AUDIO_MCLK == CXD56_XTAL_24_576MHZ ? CXD56_ACA_OSC_24_576MHZ_HIRES : CXD56_ACA_OSC_49_152MHZ_HIRES); } else { pwon_param.osc_mode = (CXD56_AUDIO_MCLK == CXD56_XTAL_24_576MHZ ? CXD56_ACA_OSC_24_576MHZ : CXD56_ACA_OSC_49_152MHZ); } pwon_param.dmic_clk_ds = CXD56_DMIC_CLK_DS; pwon_param.ad_data_ds = CXD56_DA_DS; pwon_param.mic_dev = CXD56_ACA_MIC_AMIC; /* TODO: analog/digital mic select */ pwon_param.mclk_ds = CXD56_MCLKOUT_DS; pwon_param.gpo_ds = CXD56_GPO_A_DS; if (as_aca_control(CXD56_ACA_CTL_POWER_ON_COMMON, (uint32_t)&pwon_param) != 0) { return CXD56_AUDIO_ECODE_ANA_PWON; } return CXD56_AUDIO_ECODE_OK; } static uint32_t cxd56_power_on_analog_output(FAR struct cxd56_dev_s *dev) { struct cxd56_aca_smaster_param_s smaster_param; struct cxd56_aca_pwoutput_param_s pwon_param; if (dev->samplerate > 48000) { smaster_param.mode = CXD56_SMSTR_MODE_FS_32; smaster_param.mck_fs = CXD56_SMSTR_MCK_FS_1024; pwon_param.mode = CXD56_SMSTR_MODE_FS_32; } else { smaster_param.mode = CXD56_SMSTR_MODE_FS_16; smaster_param.mck_fs = CXD56_SMSTR_MCK_FS_512; pwon_param.mode = CXD56_SMSTR_MODE_FS_16; } smaster_param.ch_sel = CXD56_SMSTR_CHSEL_NORMAL; smaster_param.out2dly = 0x00; smaster_param.pwm_mode = CXD56_SMSTR_PWMMD_BOTH; pwon_param.out_dev = CXD56_ACA_OUT_OFF; pwon_param.pwm_out[0] = CXD56_ACA_PWMOUT_UNKNOWN; pwon_param.pwm_out[1] = CXD56_ACA_PWMOUT_UNKNOWN; pwon_param.sp_delay = CXD56_ACA_SP_DELAY_SEL_UNKNOWN; pwon_param.loop_mode = CXD56_ACA_SP_LOOP_MODE_UNKNOWN; pwon_param.sp_dly_free = CXD56_ACA_SP_DLY_FREE_UNKNOWN; pwon_param.sp_spliton = CXD56_SP_SPLIT_ON; pwon_param.sp_drv = CXD56_SP_DRIVER; if (as_aca_control(CXD56_ACA_CTL_SET_SMASTER, (uint32_t)&smaster_param) != 0) { return CXD56_AUDIO_ECODE_ANA_SET_SMASTER; } if (as_aca_control(CXD56_ACA_CTL_POWER_ON_OUTPUT, (uint32_t)&pwon_param) != 0) { return CXD56_AUDIO_ECODE_ANA_PWON_OUTPUT; } /* Power on S-Mster. */ write_reg(REG_AC_PDN_SMSTR, 0); /* Set NSDD. */ write_reg(REG_AC_NSDD, 0x07fb5); /* Set NSX2. */ if (dev->samplerate > 48000 && CXD56_AUDIO_MCLK == CXD56_XTAL_49_152MHZ) { write_reg(REG_AC_NSX2, 1); } else { write_reg(REG_AC_NSX2, 0); } /* Set smaster and enable */ write_reg(REG_INT_M_OVF_SMASL, 0); write_reg(REG_INT_M_OVF_SMASR, 0); write_reg(REG_AC_NSPMUTE, 0); cxd56_set_volume(CXD56_AUDIO_VOLID_MIXER_OUT, dev->volume); return CXD56_AUDIO_ECODE_OK; } static uint32_t cxd56_power_on(FAR struct cxd56_dev_s *dev) { if (g_codec_start_count == 0) { board_audio_i2s_enable(); board_audio_initialize(); /* Power on analog audio */ if (board_aca_power_control(CXD5247_AVDD | CXD5247_DVDD, true) != 0) { return CXD56_AUDIO_ECODE_ANA_PWON; } if (!board_aca_power_monitor(CXD5247_AVDD | CXD5247_DVDD)) { return CXD56_AUDIO_ECODE_ANA_PWON; } cxd56_power_on_aca(dev->samplerate); cxd56_audio_clock_enable(CXD56_AUD_MCLK_EXT, 0); /* Power_on_codec */ if (read_reg(REG_AC_REVID) != CXD56_EXP_REVID) { auderr("cxd56_power_on REVID mismatch (%x vs. %x).\n", REG_AC_REVID, CXD56_EXP_REVID); return CXD56_AUDIO_ECODE_ANA_CHKID; } if (read_reg(REG_AC_DEVICEID) != CXD56_EXP_DEVICEID) { auderr("cxd56_power_on DEVICEID mismatch (%x vs. %x).\n", REG_AC_DEVICEID, CXD56_EXP_DEVICEID); return CXD56_AUDIO_ECODE_ANA_CHKID; } /* Power on serializeer */ write_reg(REG_AC_SDES_EN, 1); /* Power on codec */ write_reg(REG_AC_PDN_DSPC, 0); write_reg(REG_AC_DSR_RATE, 1); write_reg(REG_AC_DIGSFT, 1); /* Clear interrupt status of bck_err */ write_reg(REG_INT_M_I2S1_BCL_ERR1, 0); write_reg(REG_INT_M_I2S1_BCL_ERR2, 0); cxd56_power_on_i2s1(dev); /* Enable I2S data input and output of SRC1 */ write_reg(REG_AC_SDIN1_EN, 1); write_reg(REG_AC_SDOUT1_EN, 1); /* Enable BCK, LRCK output if master (1). */ write_reg(REG_AC_SDCK_OUTENX, CXD56_I2S1_MODE); /* Enable serial interface */ write_reg(REG_AC_FS_CLK_EN, 1); write_reg(REG_AC_PDM_OUT_EN, 1); /* Initialize data path selection */ write_reg(REG_AC_AU_DAT_SEL1, 4); write_reg(REG_AC_AU_DAT_SEL2, 4); write_reg(REG_AC_AU_COD_INSEL2, 2); write_reg(REG_AC_AU_COD_INSEL3, 3); write_reg(REG_AC_SRC1IN_SEL, 0); write_reg(REG_AC_SRC2IN_SEL, 1); /* Set BCA data rate */ write_reg(REG_I2S_ENSEL, (dev->samplerate > 48000) ? 1 : 0); /* Disable DEQ */ write_reg(REG_AC_DEQ_EN, 0); /* Disable DNC. */ write_reg(REG_AC_DNC1_MUTE, 1); write_reg(REG_AC_DNC2_MUTE, 1); write_reg(REG_AC_DNC1_START, 0); write_reg(REG_AC_DNC2_START, 0); /* Disable ALC/SPC */ write_reg(REG_AC_ALC_EN, 0); write_reg(REG_AC_SPC_EN, 0); /* Disable Clear Stereo */ write_reg(REG_AC_CS_SIGN, 0); write_reg(REG_AC_CS_VOL, 0x00); cxd56_attach_irq(true); cxd56_enable_irq(true); } g_codec_start_count++; return CXD56_AUDIO_ECODE_OK; } static uint32_t cxd56_power_off(FAR struct cxd56_dev_s *dev) { audinfo("cxd56_power_off\n"); /* Disable AHBMASTER. */ write_reg(REG_AC_MCK_AMBMSTR_EN, 0); /* Disable SRC. */ write_reg(REG_AC_SDIN1_EN, 0); write_reg(REG_AC_SDIN2_EN, 0); write_reg(REG_AC_SDOUT1_EN, 0); write_reg(REG_AC_SDOUT2_EN, 0); write_reg(REG_AC_SDCK_OUTENX, 1); write_reg(REG_AC_BLF_EN, 0); /* Disable SDES. */ write_reg(REG_AC_PDM_OUT_EN, 0); write_reg(REG_AC_FS_CLK_EN, 0); write_reg(REG_AC_SDES_EN, 0); /* Power off SRC. */ write_reg(REG_AC_PDN_DSPS1, 1); write_reg(REG_AC_PDN_DSPS2, 1); write_reg(REG_AC_PDN_DSPB, 1); /* Power off CODEC. */ write_reg(REG_AC_PDN_DSPC, 1); /* Power off DNC. */ write_reg(REG_AC_PDN_DNC1, 1); write_reg(REG_AC_PDN_DNC2, 1); write_reg(REG_AC_PDN_ANC, 1); /* Disable audio clock */ cxd56_audio_clock_disable(); if (as_aca_control(CXD56_ACA_CTL_POWER_OFF_COMMON, (uint32_t)NULL) != 0) { return CXD56_AUDIO_ECODE_ANA_PWOFF; } board_aca_power_control(CXD5247_AVDD | CXD5247_DVDD, false); /* Disable interrupts */ cxd56_attach_irq(false); cxd56_enable_irq(false); board_audio_finalize(); return CXD56_AUDIO_ECODE_OK; } /**************************************************************************** * Name: cxd56_getcaps * * Description: Get the audio device capabilities. * ****************************************************************************/ static int cxd56_getcaps(FAR struct audio_lowerhalf_s *lower, int type, FAR struct audio_caps_s *caps) { DEBUGASSERT(caps && caps->ac_len >= sizeof(struct audio_caps_s)); /* Fill in the caller's structure based on requested info */ caps->ac_format.hw = 0; caps->ac_controls.w = 0; switch (caps->ac_type) { /* Query for supported types of units */ case AUDIO_TYPE_QUERY: /* Stereo output */ caps->ac_channels = 2; switch (caps->ac_subtype) { case AUDIO_TYPE_QUERY: /* The types of audio units we implement */ caps->ac_controls.b[0] = AUDIO_TYPE_OUTPUT | AUDIO_TYPE_INPUT | AUDIO_TYPE_FEATURE; break; default: caps->ac_controls.b[0] = AUDIO_SUBFMT_END; break; } break; /* Output capabilities */ case AUDIO_TYPE_OUTPUT: caps->ac_channels = CXD56_OUT_CHANNELS_MAX; switch (caps->ac_subtype) { case AUDIO_TYPE_QUERY: /* Report supported output sample rates */ caps->ac_controls.b[0] = CXD56_SUPP_RATES_L; caps->ac_controls.b[1] = CXD56_SUPP_RATES_H; break; default: break; } break; /* Feature capabilities */ case AUDIO_TYPE_FEATURE: /* Report supported feature units */ if (caps->ac_subtype == AUDIO_FU_UNDEF) { caps->ac_controls.b[0] = AUDIO_FU_VOLUME; } break; /* Others are unsupported */ default: /* Zero out the fields to indicate no support */ caps->ac_subtype = 0; caps->ac_channels = 0; break; } /* Return the length of the audio_caps_s struct for validation */ return caps->ac_len; } /**************************************************************************** * Name: cxd56_shutdown * * Description: Shutdown the chip and puts it in the lowest power * state possible. * ****************************************************************************/ static int cxd56_shutdown(FAR struct audio_lowerhalf_s *lower) { FAR struct cxd56_dev_s *priv = (FAR struct cxd56_dev_s *)lower; int ret = OK; audinfo("cxd56_shutdown\n"); if (priv->state != CXD56_DEV_STATE_OFF) { ret = cxd56_power_off(priv); if (ret != CXD56_AUDIO_ECODE_OK) { auderr("cxd56_audio_poweroff() failed. (%d)\n", ret); goto error; } g_codec_start_count = 0; priv->state = CXD56_DEV_STATE_OFF; } error: return ret; } /**************************************************************************** * Name: cxd56_configure * * Description: Configure the audio device for the specified mode. * ****************************************************************************/ #ifdef CONFIG_AUDIO_MULTI_SESSION static int cxd56_configure(FAR struct audio_lowerhalf_s *lower, FAR void *session, FAR const struct audio_caps_s *caps) #else static int cxd56_configure(FAR struct audio_lowerhalf_s *lower, FAR const struct audio_caps_s *caps) #endif { FAR struct cxd56_dev_s *priv = (FAR struct cxd56_dev_s *)lower; int ret = OK; switch (caps->ac_type) { case AUDIO_TYPE_FEATURE: audinfo(" AUDIO_TYPE_FEATURE\n"); switch (caps->ac_format.hw) { #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME case AUDIO_FU_VOLUME: { uint16_t volume = caps->ac_controls.hw[0]; if (volume >= 0 && volume <= 1000) { /* Scale the volume setting to the range {-1020..120} */ priv->volume = CXD56_VOL_NX_TO_CXD56(volume); cxd56_set_volume(CXD56_AUDIO_VOLID_MIXER_OUT, priv->volume); cxd56_set_volume(CXD56_AUDIO_VOLID_MIXER_IN1, priv->volume); cxd56_set_volume(CXD56_AUDIO_VOLID_MIXER_IN2, priv->volume); } else { ret = -EDOM; } } break; #endif /* CONFIG_AUDIO_EXCLUDE_VOLUME */ default: auderr("Unrecognized feature unit\n"); ret = -ENOTTY; break; } break; case AUDIO_TYPE_OUTPUT: { if (caps->ac_controls.b[2] != 16 && caps->ac_controls.b[2] != 24) { auderr("Unsupported bits per sample: %d\n", caps->ac_controls.b[2]); ret = -ERANGE; break; } /* Save the configuration */ priv->dma_handle = CXD56_AUDIO_DMA_I2S0_DOWN; priv->samplerate = caps->ac_controls.hw[0]; priv->channels = caps->ac_channels; priv->bitwidth = caps->ac_controls.b[2]; g_dev[priv->dma_handle] = priv; audinfo("Configured output using %d:\n", priv->dma_handle); audinfo(" Channels: %d\n", priv->channels); audinfo(" Samplerate: %d\n", priv->samplerate); audinfo(" Bit width: %d\n", priv->bitwidth); /* Get ready to start receiving buffers */ ret = cxd56_power_on(priv); if (ret != CXD56_AUDIO_ECODE_OK) { auderr("Power on error. (%d)\n", ret); goto error; } ret = cxd56_init_dma(priv); if (ret != CXD56_AUDIO_ECODE_OK) { auderr("DMA init failed. (%d)\n", ret); goto error; } priv->state = CXD56_DEV_STATE_STOPPED; } break; } error: return ret; } /**************************************************************************** * Name: cxd56_start * * Description: Starts playback with the current configuration. * ****************************************************************************/ #ifdef CONFIG_AUDIO_MULTI_SESSION static int cxd56_start(FAR struct audio_lowerhalf_s *lower, FAR void *session) #else static int cxd56_start(FAR struct audio_lowerhalf_s *lower) #endif { int ret; FAR struct cxd56_dev_s *priv = (FAR struct cxd56_dev_s *)lower; audinfo("cxd56_start\n"); /* Set audio path and enable output */ if (priv->dma_handle == CXD56_AUDIO_DMA_I2S0_DOWN) { write_reg(REG_AC_AU_DAT_SEL1, CXD56_AUDAT_SEL_BUSIF1); } ret = cxd56_power_on_analog_output(priv); if (ret != CXD56_AUDIO_ECODE_OK) { auderr("Power on analog output failed- (%d)\n", ret); goto error; } ret = cxd56_init_worker(lower); if (ret != CXD56_AUDIO_ECODE_OK) { auderr("Could not feed DMA. (%d)\n", ret); goto error; } error: return ret; } /**************************************************************************** * Name: cxd56_stop * * Description: Stops playback with the current configuration. * ****************************************************************************/ static int cxd56_stop_dma(FAR struct cxd56_dev_s *priv) { int ret = OK; if (priv->state != CXD56_DEV_STATE_STOPPED) { audinfo("Stopping DMA for handle %d.\n", priv->dma_handle); /* Stop DMA */ cxd56_set_dma_running(priv->dma_handle, false); if (priv->dma_handle == CXD56_AUDIO_DMA_I2S0_DOWN) { /* Turn off amplifier */ board_external_amp_mute_control(true); /* Mute and disable output */ write_reg(REG_AC_NSPMUTE, 1); write_reg(REG_AC_PDN_SMSTR, 1); as_aca_control(CXD56_ACA_CTL_POWER_OFF_OUTPUT, (uint32_t)NULL); } } return ret; } #ifndef CONFIG_AUDIO_EXCLUDE_STOP #ifdef CONFIG_AUDIO_MULTI_SESSION static int cxd56_stop(FAR struct audio_lowerhalf_s *lower, FAR void *session) #else static int cxd56_stop(FAR struct audio_lowerhalf_s *lower) #endif { int ret = OK; FAR void *value; struct audio_msg_s msg; FAR struct cxd56_dev_s *priv = (FAR struct cxd56_dev_s *)lower; audinfo("cxd56_stop\n"); if (priv->state == CXD56_DEV_STATE_STOPPED) { goto error; } msg.msg_id = AUDIO_MSG_STOP; msg.u.data = 0; (void)nxmq_send(priv->mq, (FAR const char *)&msg, sizeof(msg), CONFIG_CXD56_MSG_PRIO); /* Join the worker thread */ pthread_join(priv->threadid, &value); priv->threadid = 0; error: return ret; } #endif /* CONFIG_AUDIO_EXCLUDE_STOP */ /**************************************************************************** * Name: cxd56_pause * * Description: Pauses the playback. * ****************************************************************************/ #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME #ifdef CONFIG_AUDIO_MULTI_SESSION static int cxd56_pause(FAR struct audio_lowerhalf_s *lower, FAR void *session) #else static int cxd56_pause(FAR struct audio_lowerhalf_s *lower) #endif { int ret = OK; FAR struct cxd56_dev_s *dev = (FAR struct cxd56_dev_s *)lower; audinfo("cxd56_pause\n"); if (dev->state == CXD56_DEV_STATE_STARTED) { dev->state = CXD56_DEV_STATE_PAUSED; ret = cxd56_stop_dma(dev); if (ret != CXD56_AUDIO_ECODE_OK) { auderr("Could not stop DMA transfer. (%d)\n", ret); } } return ret; } /**************************************************************************** * Name: cxd56_resume * * Description: Resumes the playback. * ****************************************************************************/ #ifdef CONFIG_AUDIO_MULTI_SESSION static int cxd56_resume(FAR struct audio_lowerhalf_s *lower, FAR void *session) #else static int cxd56_resume(FAR struct audio_lowerhalf_s *lower) #endif { int ret = OK; FAR struct cxd56_dev_s *dev = (FAR struct cxd56_dev_s *)lower; audinfo("cxd56_resume\n"); if (dev->state == CXD56_DEV_STATE_PAUSED) { dev->state = CXD56_DEV_STATE_STARTED; cxd56_power_on_analog_output(dev); board_external_amp_mute_control(false); ret = cxd56_start_dma(dev); if (ret != CXD56_AUDIO_ECODE_OK) { audinfo("Could not resume DMA transfer. (%d)\n", ret); } } return ret; } #endif /* CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME */ /**************************************************************************** * Name: cxd56_release * * Description: Releases the session. * ****************************************************************************/ #ifdef CONFIG_AUDIO_MULTI_SESSION static int cxd56_release(FAR struct audio_lowerhalf_s *lower, FAR void *session) #else static int cxd56_release(FAR struct audio_lowerhalf_s *lower) #endif { audinfo("cxd56_release\n"); return OK; } /**************************************************************************** * Name: cxd56_reserve * * Description: Reserves a session. * ****************************************************************************/ #ifdef CONFIG_AUDIO_MULTI_SESSION static int cxd56_reserve(FAR struct audio_lowerhalf_s *lower, FAR void **session) #else static int cxd56_reserve(FAR struct audio_lowerhalf_s *lower) #endif { audinfo("cxd56_reserve\n"); return OK; } static void cxd56_swap_buffer_rl(uint32_t addr, uint16_t size) { uint32_t i = 0; uint16_t tmp_buffer; uint16_t *p_lch = (uint16_t *)addr; uint16_t *p_rch = p_lch + 1; while (i++ < size / 4) { tmp_buffer = *p_lch; *p_lch = *p_rch; *p_rch = tmp_buffer; p_lch += 2; p_rch += 2; } } static int cxd56_start_dma(FAR struct cxd56_dev_s *dev) { FAR struct ap_buffer_s *apb; int retry; int timeout; uint32_t addr; uint32_t size; CXD56_AUDIO_ECODE ret = CXD56_AUDIO_ECODE_OK; cxd56_take_sem(&dev->pendsem); if (dq_count(&dev->pendingq) == 0) { /* Pending queue empty, nothing to do */ struct audio_msg_s msg; msg.msg_id = AUDIO_MSG_STOP; msg.u.data = 0; (void)nxmq_send(dev->mq, (FAR const char *)&msg, sizeof(msg), CONFIG_CXD56_MSG_PRIO); } else { /* Fill up with as many DMA requests as we can */ while (dq_count(&dev->pendingq) > 0) { if (read_reg(REG_I2S1_OUT_RTD_TRG) != CXD56_DMA_CMD_FIFO_NOT_FULL) { /* DMA busy, will retry next time */ ret = CXD56_AUDIO_ECODE_OK; goto exit; } apb = (struct ap_buffer_s *) dq_peek(&dev->pendingq); addr = ((uint32_t)apb->samp) & CXD56_DMA_START_ADDR_MASK; size = (apb->nbytes / ((dev->bitwidth / 8) + dev->channels)) - 1; if (dev->bitwidth == 16 && CXD56_DMA_FORMAT == CXD56_DMA_FORMAT_RL) { cxd56_swap_buffer_rl((uint32_t)apb->samp, apb->nbytes); } write_reg(REG_I2S1_OUT_START_ADR, addr); write_reg(REG_I2S1_OUT_SAMPLE_NO, size); /* Start DMA, use workaround with first buffer */ if (dev->state != CXD56_DEV_STATE_STARTED) { /* Turn on amplifier */ board_external_amp_mute_control(false); /* Mask interrupts */ cxd56_int_mask(dev->dma_handle, CXD56_DMA_INT_ERR); cxd56_int_mask(dev->dma_handle, CXD56_DMA_INT_DONE); /* Sync workaround loop */ for (retry = 0; retry < CXD56_DMA_START_RETRY_CNT; retry++) { /* Clear interrupt status */ cxd56_int_clear(dev->dma_handle, CXD56_DMA_INT_ERR); cxd56_int_clear(dev->dma_handle, CXD56_DMA_INT_SMP); /* Lock interrupt */ up_irq_disable(); sched_lock(); for (timeout = 0; timeout < CXD56_DMA_TIMEOUT; timeout++) { if (read_reg(REG_I2S1_INT_CTRL_SMP)) { break; } } if (timeout == CXD56_DMA_TIMEOUT) { ret = CXD56_AUDIO_ECODE_DMA_SMP_TIMEOUT; goto exit; } /* Reset channel select */ cxd56_reset_channel_sel(dev->dma_handle); /* Start DMA */ cxd56_set_dma_running(CXD56_AUDIO_DMA_I2S0_DOWN, true); /* Unlock interrupt */ sched_unlock(); up_irq_enable(); /* Wait for 1sample tramsfer */ if (dev->samplerate > 48000) { up_udelay(CXD56_DMA_SMP_WAIT_HIRES); } else { up_udelay(CXD56_DMA_SMP_WAIT_NORMALT); } /* Check whether an error interrupt has occurred */ if (read_reg(REG_I2S1_INT_CTRL_ERR)) { cxd56_set_dma_running(CXD56_AUDIO_DMA_I2S0_DOWN, false); cxd56_int_clear(dev->dma_handle, CXD56_DMA_INT_ERR); for (timeout = 0; timeout < CXD56_DMA_TIMEOUT; timeout++) { if (CXD56_DMA_MSTATE_BUF_EMPTY == cxd56_get_monbuf_state(dev->dma_handle)) { if (read_reg(REG_I2S1_INT_CTRL_DONE)) { cxd56_int_clear(dev->dma_handle, CXD56_DMA_INT_DONE); break; } } } } else { break; } } cxd56_int_unmask(dev->dma_handle, CXD56_DMA_INT_DONE); cxd56_int_clear(dev->dma_handle, CXD56_DMA_INT_ERR); cxd56_int_unmask(dev->dma_handle, CXD56_DMA_INT_ERR); } else { /* start DMA */ cxd56_set_dma_running(CXD56_AUDIO_DMA_I2S0_DOWN, true); } dq_pop(&dev->pendingq); dq_push(&dev->runningq, &apb->dq_entry); dev->state = CXD56_DEV_STATE_STARTED; } } exit: cxd56_give_sem(&dev->pendsem); return ret; } /**************************************************************************** * Name: cxd56_enqueuebuffer * * Description: Enqueue an audio buffer for playback. * ****************************************************************************/ static int cxd56_enqueuebuffer(FAR struct audio_lowerhalf_s *lower, FAR struct ap_buffer_s *apb) { FAR struct cxd56_dev_s *priv = (FAR struct cxd56_dev_s *)lower; struct audio_msg_s msg; int ret = OK; cxd56_take_sem(&priv->pendsem); dq_push(&priv->pendingq, &apb->dq_entry); cxd56_give_sem(&priv->pendsem); if (priv->mq != NULL) { msg.msg_id = AUDIO_MSG_ENQUEUE; msg.u.data = 0; (void)nxmq_send(priv->mq, (FAR const char *) &msg, sizeof(msg), CONFIG_CXD56_MSG_PRIO); } return ret; } /**************************************************************************** * Name: cxd56_cancelbuffer * * Description: Called when an enqueued buffer is being cancelled. * ****************************************************************************/ static int cxd56_cancelbuffer(FAR struct audio_lowerhalf_s *lower, FAR struct ap_buffer_s *apb) { audinfo("cxd56_cancelbuffer\n"); return OK; } /**************************************************************************** * Name: cxd56_ioctl * * Description: Perform a device ioctl * ****************************************************************************/ static int cxd56_ioctl(FAR struct audio_lowerhalf_s *lower, int cmd, unsigned long arg) { #ifdef CONFIG_AUDIO_DRIVER_SPECIFIC_BUFFERS FAR struct ap_buffer_info_s *bufinfo; #endif audinfo("cxd56_ioctl\n"); /* Handle ioctl commands from the upper-half driver */ switch (cmd) { /* Return our preferred buffer size and count */ #ifdef CONFIG_AUDIO_DRIVER_SPECIFIC_BUFFERS case AUDIOIOC_GETBUFFERINFO: { audinfo("AUDIOIOC_GETBUFFERINFO:\n"); bufinfo = (FAR struct ap_buffer_info_s *) arg; bufinfo->buffer_size = CONFIG_CXD56_AUDIO_BUFFER_SIZE; bufinfo->nbuffers = CONFIG_CXD56_AUDIO_NUM_BUFFERS; } break; #endif default: audinfo("Unhandled ioctl: %d\n", cmd); break; } return OK; } /**************************************************************************** * Name: cxd56_workerthread * * This is the thread that feeds data to the chip and keeps the audio * stream going. * ****************************************************************************/ static void *cxd56_workerthread(pthread_addr_t pvarg) { FAR struct cxd56_dev_s *priv = (struct cxd56_dev_s *)pvarg; struct audio_msg_s msg; unsigned int prio; int ret; int size; audinfo("Workerthread started.\n"); #ifndef CONFIG_AUDIO_EXCLUDE_STOP priv->terminating = false; #endif /* Mark ourself as running */ priv->running = true; /* Initial buffering */ ret = cxd56_start_dma(priv); if (ret != CXD56_AUDIO_ECODE_OK) { auderr("Could not start DMA transfer. (%d)\n", ret); priv->running = false; } while (priv->running) { size = nxmq_receive(priv->mq, (FAR char *)&msg, sizeof(msg), &prio); /* Handle the case when we return with no message */ if (size == 0) { priv->running = false; break; } /* Process the message */ switch (msg.msg_id) { case AUDIO_MSG_STOP: ret = cxd56_stop_dma(priv); if (ret != CXD56_AUDIO_ECODE_OK) { auderr("Could not stop DMA transfer. (%d)\n", ret); priv->running = false; } priv->state = CXD56_DEV_STATE_STOPPED; priv->running = false; audinfo("Workerthread stopped.\n"); break; case AUDIO_MSG_DATA_REQUEST: if (priv->state == CXD56_DEV_STATE_STARTED) { cxd56_start_dma(priv); } break; case AUDIO_MSG_ENQUEUE: default: break; } } mq_close(priv->mq); mq_unlink(priv->mqname); priv->mq = NULL; /* Send AUDIO_MSG_COMPLETE to the client */ #ifdef CONFIG_AUDIO_MULTI_SESSION priv->dev.upper(priv->dev.priv, AUDIO_CALLBACK_COMPLETE, NULL, OK, NULL); #else priv->dev.upper(priv->dev.priv, AUDIO_CALLBACK_COMPLETE, NULL, OK); #endif return NULL; } /* Setup worker thread and message queue */ static int cxd56_init_worker(FAR struct audio_lowerhalf_s *dev) { FAR struct cxd56_dev_s *priv = (FAR struct cxd56_dev_s *)dev; struct sched_param sparam; struct mq_attr m_attr; pthread_attr_t t_attr; void *value; int ret = CXD56_AUDIO_ECODE_OK; snprintf(priv->mqname, sizeof(priv->mqname), "/tmp/%X", priv); m_attr.mq_maxmsg = 16; m_attr.mq_msgsize = sizeof(struct audio_msg_s); m_attr.mq_curmsgs = 0; m_attr.mq_flags = 0; priv->mq = mq_open(priv->mqname, O_RDWR | O_CREAT, 0644, &m_attr); if (priv->mq == NULL) { auderr("Could not allocate message queue.\n"); ret = -ENOMEM; goto error; } /* Join any old worker thread we had created to prevent a memory leak */ if (priv->threadid != 0) { pthread_join(priv->threadid, &value); } pthread_attr_init(&t_attr); sparam.sched_priority = sched_get_priority_max(SCHED_FIFO) - 3; (void)pthread_attr_setschedparam(&t_attr, &sparam); (void)pthread_attr_setstacksize(&t_attr, CONFIG_CXD56_AUDIO_WORKER_STACKSIZE); ret = pthread_create(&priv->threadid, &t_attr, cxd56_workerthread, (pthread_addr_t)priv); if (ret != OK) { auderr("pthread_create failed. (%d)\n", ret); goto error; } else { pthread_setname_np(priv->threadid, "cxd56"); } error: return ret; } /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: cxd56_initialize * * Description: * Initialize audio on the CXD56 device * * Input Parameters: * ****************************************************************************/ struct audio_lowerhalf_s *cxd56_initialize( FAR const struct cxd56_lower_s *lower) { FAR struct cxd56_dev_s *priv; audinfo("cxd56_initialize\n"); priv = (FAR struct cxd56_dev_s *)kmm_zalloc(sizeof(struct cxd56_dev_s)); if (priv) { priv->dev.ops = &g_audioops; priv->lower = lower; priv->state = CXD56_DEV_STATE_OFF; nxsem_init(&priv->pendsem, 0, 1); dq_init(&priv->pendingq); dq_init(&priv->runningq); } return &priv->dev; }