148 lines
3.8 KiB
C
148 lines
3.8 KiB
C
/*
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* Copyright (c) 2018 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/** @file
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* @brief I2S bus (SSP) driver for Intel CAVS.
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*
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* Limitations:
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* - DMA is used in simple single block transfer mode (with linked list
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* enabled) and "interrupt on full transfer completion" mode.
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*/
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#ifndef ZEPHYR_DRIVERS_I2S_I2S_CAVS_H_
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#define ZEPHYR_DRIVERS_I2S_I2S_CAVS_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct i2s_cavs_ssp {
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uint32_t ssc0; /* 0x00 - Control0 */
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uint32_t ssc1; /* 0x04 - Control1 */
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uint32_t sss; /* 0x08 - Status */
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uint32_t ssit; /* 0x0C - Interrupt Test */
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uint32_t ssd; /* 0x10 - Data */
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uint32_t reserved0[5];
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uint32_t ssto; /* 0x28 - Time Out */
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uint32_t sspsp; /* 0x2C - Programmable Serial Protocol */
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uint32_t sstsa; /* 0x30 - TX Time Slot Active */
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uint32_t ssrsa; /* 0x34 - RX Time Slot Active */
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uint32_t sstss; /* 0x38 - Time Slot Status */
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uint32_t reserved1;
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uint32_t ssc2; /* 0x40 - Command / Status 2 */
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uint32_t sspsp2; /* 0x44 - Programmable Serial Protocol 2 */
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uint32_t ssc3; /* 0x48 - Command / Status 3 */
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uint32_t ssioc; /* 0x4C - IO Control */
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};
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/* SSCR0 bits */
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#define SSCR0_DSS_MASK (0x0000000f)
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#define SSCR0_DSIZE(x) ((x) - 1)
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#define SSCR0_FRF (0x00000030)
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#define SSCR0_MOT (00 << 4)
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#define SSCR0_TI (1 << 4)
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#define SSCR0_NAT (2 << 4)
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#define SSCR0_PSP (3 << 4)
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#define SSCR0_ECS (1 << 6)
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#define SSCR0_SSE (1 << 7)
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#define SSCR0_SCR_MASK (0x000fff00)
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#define SSCR0_SCR(x) ((x) << 8)
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#define SSCR0_EDSS (1 << 20)
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#define SSCR0_NCS (1 << 21)
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#define SSCR0_RIM (1 << 22)
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#define SSCR0_TIM (1 << 23)
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#define SSCR0_FRDC(x) (((x) - 1) << 24)
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#define SSCR0_ACS (1 << 30)
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#define SSCR0_MOD (1 << 31)
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/* SSCR1 bits */
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#define SSCR1_RIE (1 << 0)
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#define SSCR1_TIE (1 << 1)
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#define SSCR1_LBM (1 << 2)
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#define SSCR1_SPO (1 << 3)
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#define SSCR1_SPH (1 << 4)
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#define SSCR1_MWDS (1 << 5)
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#define SSCR1_EFWR (1 << 14)
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#define SSCR1_STRF (1 << 15)
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#define SSCR1_IFS (1 << 16)
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#define SSCR1_PINTE (1 << 18)
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#define SSCR1_TINTE (1 << 19)
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#define SSCR1_RSRE (1 << 20)
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#define SSCR1_TSRE (1 << 21)
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#define SSCR1_TRAIL (1 << 22)
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#define SSCR1_RWOT (1 << 23)
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#define SSCR1_SFRMDIR (1 << 24)
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#define SSCR1_SCLKDIR (1 << 25)
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#define SSCR1_ECRB (1 << 26)
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#define SSCR1_ECRA (1 << 27)
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#define SSCR1_SCFR (1 << 28)
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#define SSCR1_EBCEI (1 << 29)
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#define SSCR1_TTE (1 << 30)
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#define SSCR1_TTELP (1 << 31)
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/* SSCR2 bits */
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#define SSCR2_TURM1 (1 << 1)
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#define SSCR2_SDFD (1 << 14)
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#define SSCR2_SDPM (1 << 16)
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#define SSCR2_LJDFD (1 << 17)
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/* SSR bits */
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#define SSSR_TNF (1 << 2)
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#define SSSR_RNE (1 << 3)
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#define SSSR_BSY (1 << 4)
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#define SSSR_TFS (1 << 5)
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#define SSSR_RFS (1 << 6)
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#define SSSR_ROR (1 << 7)
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#define SSSR_TUR (1 << 21)
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/* SSPSP bits */
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#define SSPSP_SCMODE(x) ((x) << 0)
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#define SSPSP_SFRMP(x) ((x) << 2)
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#define SSPSP_ETDS (1 << 3)
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#define SSPSP_STRTDLY(x) ((x) << 4)
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#define SSPSP_DMYSTRT(x) ((x) << 7)
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#define SSPSP_SFRMDLY(x) ((x) << 9)
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#define SSPSP_SFRMWDTH(x) ((x) << 16)
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#define SSPSP_DMYSTOP(x) ((x) << 23)
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#define SSPSP_FSRT (1 << 25)
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#define SSPSP_EDMYSTOP(x) ((x) << 26)
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/* SSTSA bits */
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#define SSTSA_TTSA(x) (1 << x)
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#define SSTSA_TXEN (1 << 8)
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/* SSRSA bits */
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#define SSRSA_RTSA(x) (1 << x)
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#define SSRSA_RXEN (1 << 8)
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/* SSCR3 bits */
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#define SSCR3_TFL_MASK (0x0000003f)
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#define SSCR3_RFL_MASK (0x00003f00)
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#define SSCR3_TFT_MASK (0x003f0000)
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#define SSCR3_TX(x) (((x) - 1) << 16)
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#define SSCR3_RFT_MASK (0x3f000000)
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#define SSCR3_RX(x) (((x) - 1) << 24)
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/* SSIOC bits */
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#define SSIOC_TXDPDEB (1 << 1)
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#define SSIOC_SFCR (1 << 4)
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#define SSIOC_SCOE (1 << 5)
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struct i2s_cavs_mn_div {
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uint32_t mval; /* 0x00 - M value */
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uint32_t nval; /* 0x04 - N value */
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};
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/* MVAL & NVAL bits */
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#define I2S_MNVAL_MASK (BIT_MASK(24))
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#define I2S_MNVAL(x) ((x) & I2S_MNVAL_MASK)
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZEPHYR_DRIVERS_I2S_I2S_CAVS_H_ */
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