diff options
Diffstat (limited to 'drivers/misc/i2s/msp_i2s.h')
| -rw-r--r-- | drivers/misc/i2s/msp_i2s.h | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/drivers/misc/i2s/msp_i2s.h b/drivers/misc/i2s/msp_i2s.h new file mode 100644 index 00000000000..2ac86e7700e --- /dev/null +++ b/drivers/misc/i2s/msp_i2s.h @@ -0,0 +1,362 @@ +/*----------------------------------------------------------------------------------*/ +/* copyright STMicroelectronics, 2007. */ +/* */ +/* 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; either version 2.1 of the License, or (at your option) */ +/* any later version. */ +/* */ +/* 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 STM_MSP_HEADER +#define STM_MSP_HEADER + +#define MSP_DR 0x00 +#define MSP_GCR 0x04 +#define MSP_TCF 0x08 +#define MSP_RCF 0x0c +#define MSP_SRG 0x10 +#define MSP_FLR 0x14 +#define MSP_DMACR 0x18 + +#define MSP_IMSC 0x20 +#define MSP_RI 0x24 +#define MSP_MIS 0x28 +#define MSP_ICR 0x2c +#define MSP_MCR 0x30 +#define MSP_RCV 0x34 +#define MSP_RCM 0x38 + +#define MSP_TCE0 0x40 +#define MSP_TCE1 0x44 +#define MSP_TCE2 0x48 +#define MSP_TCE3 0x4c + +#define MSP_RCE0 0x60 +#define MSP_RCE1 0x64 +#define MSP_RCE2 0x68 +#define MSP_RCE3 0x6c + +#define MSP_ITCR 0x80 +#define MSP_ITIP 0x84 +#define MSP_ITOP 0x88 +#define MSP_TSTDR 0x8c + +#define MSP_PID0 0xfe0 +#define MSP_PID1 0xfe4 +#define MSP_PID2 0xfe8 +#define MSP_PID3 0xfec + +#define MSP_CID0 0xff0 +#define MSP_CID1 0xff4 +#define MSP_CID2 0xff8 +#define MSP_CID3 0xffc + + +/* Single or dual phase mode */ +enum +{ + MSP_SINGLE_PHASE, + MSP_DUAL_PHASE +}; + + +/* Transmit/Receive shifter status +-----------------------------------*/ +enum +{ + MSP_SxHIFTER_IDLE = 0, + MSP_SHIFTER_WORKING = 1 +}; + + +/* Transmit/Receive FIFO status +---------------------------------*/ +enum +{ + MSP_FIFO_FULL, + MSP_FIFO_PART_FILLED, + MSP_FIFO_EMPTY +}; + + +/* Frame length +------------------*/ +enum +{ + MSP_FRAME_LENGTH_1 = 0, + MSP_FRAME_LENGTH_2 = 1, + MSP_FRAME_LENGTH_4 = 3, + MSP_FRAME_LENGTH_8 = 7, + MSP_FRAME_LENGTH_12 = 11, + MSP_FRAME_LENGTH_16 = 15, + MSP_FRAME_LENGTH_20 = 19, + MSP_FRAME_LENGTH_32 = 31, + MSP_FRAME_LENGTH_48 = 47, + MSP_FRAME_LENGTH_64 = 63 +}; + +/* Element length */ +enum +{ + MSP_ELEM_LENGTH_8 = 0, + MSP_ELEM_LENGTH_10 = 1, + MSP_ELEM_LENGTH_12 = 2, + MSP_ELEM_LENGTH_14 = 3, + MSP_ELEM_LENGTH_16 = 4, + MSP_ELEM_LENGTH_20 = 5, + MSP_ELEM_LENGTH_24 = 6, + MSP_ELEM_LENGTH_32 = 7 +}; + + +/* Data delay (in bit clock cycles) +---------------------------------------*/ +enum +{ + MSP_DELAY_0 = 0, + MSP_DELAY_1 = 1, + MSP_DELAY_2 = 2, + MSP_DELAY_3 = 3 +}; + + +/* Configurations of clocks (transmit, receive or sample rate generator) +-------------------------------------------------------------------------*/ +enum +{ + MSP_RISING_EDGE = 0, + MSP_FALLING_EDGE = 1 +}; + +/* Protocol dependant parameters list */ +struct msp_protocol_desc +{ + u32 phase_mode; + u32 frame_len_1; + u32 frame_len_2; + u32 element_len_1; + u32 element_len_2; + u32 data_delay; + u32 tx_clock_edge; + u32 rx_clock_edge; +}; +#define RX_ENABLE_MASK 0x00000001 +#define RX_FIFO_ENABLE_MASK 0x00000002 +#define RX_FRAME_SYNC_MASK 0x00000004 +#define DIRECT_COMPANDING_MASK 0x00000008 +#define RX_SYNC_SEL_MASK 0x00000010 +#define RX_CLK_POL_MASK 0x00000020 +#define RX_CLK_SEL_MASK 0x00000040 +#define LOOPBACK_MASK 0x00000080 +#define TX_ENABLE_MASK 0x00000100 +#define TX_FIFO_ENABLE_MASK 0x00000200 +#define TX_FRAME_SYNC_MASK 0x00000400 +#define TX_MSP_TDR_TSR 0x00000800 +#define TX_SYNC_SEL_MASK 0x00001800 +#define TX_CLK_POL_MASK 0x00002000 +#define TX_CLK_SEL_MASK 0x00004000 +#define TX_EXTRA_DELAY_MASK 0x00008000 +#define SRG_ENABLE_MASK 0x00010000 +#define SRG_CLK_POL_MASK 0x00020000 +#define SRG_CLK_SEL_MASK 0x000C0000 +#define FRAME_GEN_EN_MASK 0x00100000 +#define SPI_CLK_MODE_MASK 0x00600000 +#define SPI_BURST_MODE_MASK 0x00800000 + +#define RXEN_BIT 0 +#define RFFEN_BIT 1 +#define RFSPOL_BIT 2 +#define DCM_BIT 3 +#define RFSSEL_BIT 4 +#define RCKPOL_BIT 5 +#define RCKSEL_BIT 6 +#define LBM_BIT 7 +#define TXEN_BIT 8 +#define TFFEN_BIT 9 +#define TFSPOL_BIT 10 +#define TFSSEL_BIT 11 +#define TCKPOL_BIT 13 +#define TCKSEL_BIT 14 +#define TXDDL_BIT 15 +#define SGEN_BIT 16 +#define SCKPOL_BIT 17 +#define SCKSEL_BIT 18 +#define FGEN_BIT 20 +#define SPICKM_BIT 21 + +#define msp_rx_clkpol_bit(n) ((n & 1) << RCKPOL_BIT) +#define msp_tx_clkpol_bit(n) ((n & 1) << TCKPOL_BIT) +#define msp_spi_clk_mode_bits(n) ((n & 3) << SPICKM_BIT) + + +/* Use this to clear the clock mode bits to non-spi */ +#define MSP_NON_SPI_CLK_MASK 0x00600000 + +#define P1ELEN_BIT 0 +#define P1FLEN_BIT 3 +#define DTYP_BIT 10 +#define ENDN_BIT 12 +#define DDLY_BIT 13 +#define FSIG_BIT 15 +#define P2ELEN_BIT 16 +#define P2FLEN_BIT 19 +#define P2SM_BIT 26 +#define P2EN_BIT 27 + +#define msp_p1_elem_len_bits(n) (n & 0x00000007) +#define msp_p2_elem_len_bits(n) (((n) << P2ELEN_BIT) & 0x00070000) +#define msp_p1_frame_len_bits(n) (((n) << P1FLEN_BIT) & 0x00000378) +#define msp_p2_frame_len_bits(n) (((n) << P2FLEN_BIT) & 0x03780000) +#define msp_data_delay_bits(n) (((n) << DDLY_BIT) & 0x00003000) +#define msp_data_type_bits(n) (((n) << DTYP_BIT) & 0x00000600) +#define msp_p2_start_mode_bit(n) (n << P2SM_BIT) +#define msp_p2_enable_bit(n) (n << P2EN_BIT) + +/* Flag register +--------------------*/ +#define RX_BUSY 0x00000001 +#define RX_FIFO_EMPTY 0x00000002 +#define RX_FIFO_FULL 0x00000004 +#define TX_BUSY 0x00000008 +#define TX_FIFO_EMPTY 0x00000010 +#define TX_FIFO_FULL 0x00000020 + +#define RBUSY_BIT 0 +#define RFE_BIT 1 +#define RFU_BIT 2 +#define TBUSY_BIT 3 +#define TFE_BIT 4 +#define TFU_BIT 5 + +/* Multichannel control register +---------------------------------*/ +#define RMCEN_BIT 0 +#define RMCSF_BIT 1 +#define RCMPM_BIT 3 +#define TMCEN_BIT 5 +#define TNCSF_BIT 6 + +/* Sample rate generator register +------------------------------------*/ +#define SCKDIV_BIT 0 +#define FRWID_BIT 10 +#define FRPER_BIT 16 + +#define SCK_DIV_MASK 0x0000003FF +#define frame_width_bits(n) (((n) << FRWID_BIT) &0x0000FC00) +#define frame_period_bits(n) (((n) << FRPER_BIT) &0x1FFF0000) + + +/* DMA controller register +---------------------------*/ +#define RX_DMA_ENABLE 0x00000001 +#define TX_DMA_ENABLE 0x00000002 + +#define RDMAE_BIT 0 +#define TDMAE_BIT 1 + +/*Interrupt Register +-----------------------------------------*/ +#define RECEIVE_SERVICE_INT 0x00000001 +#define RECEIVE_OVERRUN_ERROR_INT 0x00000002 +#define RECEIVE_FRAME_SYNC_ERR_INT 0x00000004 +#define RECEIVE_FRAME_SYNC_INT 0x00000008 +#define TRANSMIT_SERVICE_INT 0x00000010 +#define TRANSMIT_UNDERRUN_ERR_INT 0x00000020 +#define TRANSMIT_FRAME_SYNC_ERR_INT 0x00000040 +#define TRANSMIT_FRAME_SYNC_INT 0x00000080 +#define ALL_INT 0x000000ff + +/* Protocol configuration values +* I2S: Single phase, 16 bits, 2 words per frame +-----------------------------------------------*/ +#define I2S_PROTOCOL_DESC \ +{ \ + MSP_SINGLE_PHASE, \ + MSP_FRAME_LENGTH_1, \ + MSP_FRAME_LENGTH_1, \ + MSP_ELEM_LENGTH_32, \ + MSP_ELEM_LENGTH_32, \ + MSP_DELAY_1, \ + MSP_FALLING_EDGE, \ + MSP_FALLING_EDGE \ +} + +#define PCM_PROTOCOL_DESC \ +{ \ + MSP_SINGLE_PHASE, \ + MSP_FRAME_LENGTH_1, \ + MSP_FRAME_LENGTH_1, \ + MSP_ELEM_LENGTH_16, \ + MSP_ELEM_LENGTH_16, \ + MSP_DATA_DELAY, \ + MSP_TX_CLOCK_EDGE, \ + MSP_RX_CLOCK_EDGE \ +} + +/* Companded PCM: Single phase, 8 bits, 1 word per frame +--------------------------------------------------------*/ +#define PCM_COMPAND_PROTOCOL_DESC \ +{ \ + MSP_SINGLE_PHASE, \ + MSP_FRAME_LENGTH_1, \ + MSP_FRAME_LENGTH_1, \ + MSP_ELEM_LENGTH_8, \ + MSP_ELEM_LENGTH_8, \ + MSP_DELAY_0, \ + MSP_RISING_EDGE, \ + MSP_FALLING_EDGE \ +} + +/* AC97: Double phase, 1 element of 16 bits during first phase, +* 12 elements of 20 bits in second phase. +--------------------------------------------------------------*/ +#define AC97_PROTOCOL_DESC \ +{ \ + MSP_DUAL_PHASE, \ + MSP_FRAME_LENGTH_1, \ + MSP_FRAME_LENGTH_12, \ + MSP_ELEM_LENGTH_16, \ + MSP_ELEM_LENGTH_20, \ + MSP_DELAY_1, \ + MSP_RISING_EDGE, \ + MSP_FALLING_EDGE \ +} + +#define SPI_MASTER_PROTOCOL_DESC \ +{ \ + MSP_SINGLE_PHASE, \ + MSP_FRAME_LENGTH_1, \ + MSP_FRAME_LENGTH_1, \ + MSP_ELEM_LENGTH_8, \ + MSP_ELEM_LENGTH_8, \ + MSP_DELAY_1, \ + MSP_FALLING_EDGE, \ + MSP_RISING_EDGE \ +} +#define SPI_SLAVE_PROTOCOL_DESC \ +{ \ + MSP_SINGLE_PHASE, \ + MSP_FRAME_LENGTH_1, \ + MSP_FRAME_LENGTH_1, \ + MSP_ELEM_LENGTH_8, \ + MSP_ELEM_LENGTH_8, \ + MSP_DELAY_1, \ + MSP_FALLING_EDGE, \ + MSP_RISING_EDGE \ +} + +#define MSP_FRAME_PERIOD_IN_MONO_MODE 256 +#define MSP_FRAME_PERIOD_IN_STEREO_MODE 32 +#define MSP_FRAME_WIDTH_IN_STEREO_MODE 16 + +#endif + |