treewide: remove redundant IS_ERR() before error code check

[linux/fpc-iii.git] / sound / soc / sirf / sirf-usp.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * arch/arm/mach-prima2/include/mach/sirfsoc_usp.h
 *
 * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
 */

#ifndef _SIRF_USP_H
#define _SIRF_USP_H

/* USP Registers */
#define USP_MODE1               0x00
#define USP_MODE2               0x04
#define USP_TX_FRAME_CTRL       0x08
#define USP_RX_FRAME_CTRL       0x0C
#define USP_TX_RX_ENABLE        0x10
#define USP_INT_ENABLE          0x14
#define USP_INT_STATUS          0x18
#define USP_PIN_IO_DATA         0x1C
#define USP_RISC_DSP_MODE       0x20
#define USP_AYSNC_PARAM_REG     0x24
#define USP_IRDA_X_MODE_DIV     0x28
#define USP_SM_CFG              0x2C
#define USP_TX_DMA_IO_CTRL      0x100
#define USP_TX_DMA_IO_LEN       0x104
#define USP_TX_FIFO_CTRL        0x108
#define USP_TX_FIFO_LEVEL_CHK   0x10C
#define USP_TX_FIFO_OP          0x110
#define USP_TX_FIFO_STATUS      0x114
#define USP_TX_FIFO_DATA        0x118
#define USP_RX_DMA_IO_CTRL      0x120
#define USP_RX_DMA_IO_LEN       0x124
#define USP_RX_FIFO_CTRL        0x128
#define USP_RX_FIFO_LEVEL_CHK   0x12C
#define USP_RX_FIFO_OP          0x130
#define USP_RX_FIFO_STATUS      0x134
#define USP_RX_FIFO_DATA        0x138

/* USP MODE register-1 */
#define USP_SYNC_MODE                   0x00000001
#define USP_CLOCK_MODE_SLAVE            0x00000002
#define USP_LOOP_BACK_EN                0x00000004
#define USP_HPSIR_EN                    0x00000008
#define USP_ENDIAN_CTRL_LSBF            0x00000010
#define USP_EN                          0x00000020
#define USP_RXD_ACT_EDGE_FALLING        0x00000040
#define USP_TXD_ACT_EDGE_FALLING        0x00000080
#define USP_RFS_ACT_LEVEL_LOGIC1        0x00000100
#define USP_TFS_ACT_LEVEL_LOGIC1        0x00000200
#define USP_SCLK_IDLE_MODE_TOGGLE       0x00000400
#define USP_SCLK_IDLE_LEVEL_LOGIC1      0x00000800
#define USP_SCLK_PIN_MODE_IO    0x00001000
#define USP_RFS_PIN_MODE_IO     0x00002000
#define USP_TFS_PIN_MODE_IO     0x00004000
#define USP_RXD_PIN_MODE_IO     0x00008000
#define USP_TXD_PIN_MODE_IO     0x00010000
#define USP_SCLK_IO_MODE_INPUT  0x00020000
#define USP_RFS_IO_MODE_INPUT   0x00040000
#define USP_TFS_IO_MODE_INPUT   0x00080000
#define USP_RXD_IO_MODE_INPUT   0x00100000
#define USP_TXD_IO_MODE_INPUT   0x00200000
#define USP_IRDA_WIDTH_DIV_MASK 0x3FC00000
#define USP_IRDA_WIDTH_DIV_OFFSET       0
#define USP_IRDA_IDLE_LEVEL_HIGH        0x40000000
#define USP_TX_UFLOW_REPEAT_ZERO        0x80000000
#define USP_TX_ENDIAN_MODE              0x00000020
#define USP_RX_ENDIAN_MODE              0x00000020

/* USP Mode Register-2 */
#define USP_RXD_DELAY_LEN_MASK          0x000000FF
#define USP_RXD_DELAY_LEN_OFFSET        0

#define USP_TXD_DELAY_LEN_MASK          0x0000FF00
#define USP_TXD_DELAY_LEN_OFFSET        8

#define USP_ENA_CTRL_MODE               0x00010000
#define USP_FRAME_CTRL_MODE             0x00020000
#define USP_TFS_SOURCE_MODE             0x00040000
#define USP_TFS_MS_MODE                 0x00080000
#define USP_CLK_DIVISOR_MASK            0x7FE00000
#define USP_CLK_DIVISOR_OFFSET          21

#define USP_TFS_CLK_SLAVE_MODE          (1<<20)
#define USP_RFS_CLK_SLAVE_MODE          (1<<19)

#define USP_IRDA_DATA_WIDTH             0x80000000

/* USP Transmit Frame Control Register */

#define USP_TXC_DATA_LEN_MASK           0x000000FF
#define USP_TXC_DATA_LEN_OFFSET         0

#define USP_TXC_SYNC_LEN_MASK           0x0000FF00
#define USP_TXC_SYNC_LEN_OFFSET         8

#define USP_TXC_FRAME_LEN_MASK          0x00FF0000
#define USP_TXC_FRAME_LEN_OFFSET        16

#define USP_TXC_SHIFTER_LEN_MASK        0x1F000000
#define USP_TXC_SHIFTER_LEN_OFFSET      24

#define USP_TXC_SLAVE_CLK_SAMPLE        0x20000000

#define USP_TXC_CLK_DIVISOR_MASK        0xC0000000
#define USP_TXC_CLK_DIVISOR_OFFSET      30

/* USP Receive Frame Control Register */

#define USP_RXC_DATA_LEN_MASK           0x000000FF
#define USP_RXC_DATA_LEN_OFFSET         0

#define USP_RXC_FRAME_LEN_MASK          0x0000FF00
#define USP_RXC_FRAME_LEN_OFFSET        8

#define USP_RXC_SHIFTER_LEN_MASK        0x001F0000
#define USP_RXC_SHIFTER_LEN_OFFSET      16

#define USP_START_EDGE_MODE     0x00800000
#define USP_I2S_SYNC_CHG        0x00200000

#define USP_RXC_CLK_DIVISOR_MASK        0x0F000000
#define USP_RXC_CLK_DIVISOR_OFFSET      24
#define USP_SINGLE_SYNC_MODE            0x00400000

/* Tx - RX Enable Register */

#define USP_RX_ENA              0x00000001
#define USP_TX_ENA              0x00000002

/* USP Interrupt Enable and status Register */
#define USP_RX_DONE_INT                 0x00000001
#define USP_TX_DONE_INT                 0x00000002
#define USP_RX_OFLOW_INT                0x00000004
#define USP_TX_UFLOW_INT                0x00000008
#define USP_RX_IO_DMA_INT               0x00000010
#define USP_TX_IO_DMA_INT               0x00000020
#define USP_RXFIFO_FULL_INT             0x00000040
#define USP_TXFIFO_EMPTY_INT            0x00000080
#define USP_RXFIFO_THD_INT              0x00000100
#define USP_TXFIFO_THD_INT              0x00000200
#define USP_UART_FRM_ERR_INT            0x00000400
#define USP_RX_TIMEOUT_INT              0x00000800
#define USP_TX_ALLOUT_INT               0x00001000
#define USP_RXD_BREAK_INT               0x00008000

/* All possible TX interruots */
#define USP_TX_INTERRUPT                (USP_TX_DONE_INT|USP_TX_UFLOW_INT|\
                                        USP_TX_IO_DMA_INT|\
                                        USP_TXFIFO_EMPTY_INT|\
                                        USP_TXFIFO_THD_INT)
/* All possible RX interruots */
#define USP_RX_INTERRUPT                (USP_RX_DONE_INT|USP_RX_OFLOW_INT|\
                                        USP_RX_IO_DMA_INT|\
                                        USP_RXFIFO_FULL_INT|\
                                        USP_RXFIFO_THD_INT|\
                                        USP_RX_TIMEOUT_INT)

#define USP_INT_ALL        0x1FFF

/* USP Pin I/O Data Register */

#define USP_RFS_PIN_VALUE_MASK  0x00000001
#define USP_TFS_PIN_VALUE_MASK  0x00000002
#define USP_RXD_PIN_VALUE_MASK  0x00000004
#define USP_TXD_PIN_VALUE_MASK  0x00000008
#define USP_SCLK_PIN_VALUE_MASK 0x00000010

/* USP RISC/DSP Mode Register */
#define USP_RISC_DSP_SEL        0x00000001

/* USP ASYNC PARAMETER Register*/

#define USP_ASYNC_TIMEOUT_MASK  0x0000FFFF
#define USP_ASYNC_TIMEOUT_OFFSET        0
#define USP_ASYNC_TIMEOUT(x)    (((x)&USP_ASYNC_TIMEOUT_MASK) \
                                <<USP_ASYNC_TIMEOUT_OFFSET)

#define USP_ASYNC_DIV2_MASK             0x003F0000
#define USP_ASYNC_DIV2_OFFSET           16

/* USP TX DMA I/O MODE Register */
#define USP_TX_MODE_IO                  0x00000001

/* USP TX DMA I/O Length Register */
#define USP_TX_DATA_LEN_MASK            0xFFFFFFFF
#define USP_TX_DATA_LEN_OFFSET          0

/* USP TX FIFO Control Register */
#define USP_TX_FIFO_WIDTH_MASK          0x00000003
#define USP_TX_FIFO_WIDTH_OFFSET        0

#define USP_TX_FIFO_THD_MASK            0x000001FC
#define USP_TX_FIFO_THD_OFFSET          2

/* USP TX FIFO Level Check Register */
#define USP_TX_FIFO_LEVEL_CHECK_MASK    0x1F
#define USP_TX_FIFO_SC_OFFSET   0
#define USP_TX_FIFO_LC_OFFSET   10
#define USP_TX_FIFO_HC_OFFSET   20

#define TX_FIFO_SC(x)           (((x) & USP_TX_FIFO_LEVEL_CHECK_MASK) \
                                << USP_TX_FIFO_SC_OFFSET)
#define TX_FIFO_LC(x)           (((x) & USP_TX_FIFO_LEVEL_CHECK_MASK) \
                                << USP_TX_FIFO_LC_OFFSET)
#define TX_FIFO_HC(x)           (((x) & USP_TX_FIFO_LEVEL_CHECK_MASK) \
                                << USP_TX_FIFO_HC_OFFSET)

/* USP TX FIFO Operation Register */
#define USP_TX_FIFO_RESET               0x00000001
#define USP_TX_FIFO_START               0x00000002

/* USP TX FIFO Status Register */
#define USP_TX_FIFO_LEVEL_MASK          0x0000007F
#define USP_TX_FIFO_LEVEL_OFFSET        0

#define USP_TX_FIFO_FULL                0x00000080
#define USP_TX_FIFO_EMPTY               0x00000100

/* USP TX FIFO Data Register */
#define USP_TX_FIFO_DATA_MASK           0xFFFFFFFF
#define USP_TX_FIFO_DATA_OFFSET         0

/* USP RX DMA I/O MODE Register */
#define USP_RX_MODE_IO                  0x00000001
#define USP_RX_DMA_FLUSH                0x00000004

/* USP RX DMA I/O Length Register */
#define USP_RX_DATA_LEN_MASK            0xFFFFFFFF
#define USP_RX_DATA_LEN_OFFSET          0

/* USP RX FIFO Control Register */
#define USP_RX_FIFO_WIDTH_MASK          0x00000003
#define USP_RX_FIFO_WIDTH_OFFSET        0

#define USP_RX_FIFO_THD_MASK            0x000001FC
#define USP_RX_FIFO_THD_OFFSET          2

/* USP RX FIFO Level Check Register */

#define USP_RX_FIFO_LEVEL_CHECK_MASK    0x1F
#define USP_RX_FIFO_SC_OFFSET   0
#define USP_RX_FIFO_LC_OFFSET   10
#define USP_RX_FIFO_HC_OFFSET   20

#define RX_FIFO_SC(x)           (((x) & USP_RX_FIFO_LEVEL_CHECK_MASK) \
                                << USP_RX_FIFO_SC_OFFSET)
#define RX_FIFO_LC(x)           (((x) & USP_RX_FIFO_LEVEL_CHECK_MASK) \
                                << USP_RX_FIFO_LC_OFFSET)
#define RX_FIFO_HC(x)           (((x) & USP_RX_FIFO_LEVEL_CHECK_MASK) \
                                << USP_RX_FIFO_HC_OFFSET)

/* USP RX FIFO Operation Register */
#define USP_RX_FIFO_RESET               0x00000001
#define USP_RX_FIFO_START               0x00000002

/* USP RX FIFO Status Register */

#define USP_RX_FIFO_LEVEL_MASK          0x0000007F
#define USP_RX_FIFO_LEVEL_OFFSET        0

#define USP_RX_FIFO_FULL                0x00000080
#define USP_RX_FIFO_EMPTY               0x00000100

/* USP RX FIFO Data Register */

#define USP_RX_FIFO_DATA_MASK           0xFFFFFFFF
#define USP_RX_FIFO_DATA_OFFSET         0

/*
 * When rx thd irq occur, sender just disable tx empty irq,
 * Remaining data in tx fifo wil also be sent out.
 */
#define USP_FIFO_SIZE                   128
#define USP_TX_FIFO_THRESHOLD           (USP_FIFO_SIZE/2)
#define USP_RX_FIFO_THRESHOLD           (USP_FIFO_SIZE/2)

/* FIFO_WIDTH for the USP_TX_FIFO_CTRL and USP_RX_FIFO_CTRL registers */
#define USP_FIFO_WIDTH_BYTE  0x00
#define USP_FIFO_WIDTH_WORD  0x01
#define USP_FIFO_WIDTH_DWORD 0x02

#define USP_ASYNC_DIV2          16

#define USP_PLUGOUT_RETRY_CNT   2

#define USP_TX_RX_FIFO_WIDTH_DWORD    2

#define SIRF_USP_DIV_MCLK       0

#define SIRF_USP_I2S_TFS_SYNC   0
#define SIRF_USP_I2S_RFS_SYNC   1
#endif