drivers/tty/serial/msm_serial_hs_hwreg.h

/* drivers/serial/msm_serial_hs_hwreg.h
 *
 * Copyright (c) 2007-2009, 2012-2013,The Linux Foundation. All rights reserved.
 * 
 * All source code in this file is licensed under the following license
 * except where indicated.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 * 
 * 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, you can find it at http://www.fsf.org
 */

#ifndef MSM_SERIAL_HS_HWREG_H
#define MSM_SERIAL_HS_HWREG_H

#define GSBI_CONTROL_ADDR              0x0
#define GSBI_PROTOCOL_CODE_MASK        0x30
#define GSBI_PROTOCOL_I2C_UART         0x60
#define GSBI_PROTOCOL_UART             0x40
#define GSBI_PROTOCOL_IDLE             0x0

#define TCSR_ADM_1_A_CRCI_MUX_SEL      0x78
#define TCSR_ADM_1_B_CRCI_MUX_SEL      0x7C
#define ADM1_CRCI_GSBI6_RX_SEL         0x800
#define ADM1_CRCI_GSBI6_TX_SEL         0x400

enum msm_hsl_regs {
	UARTDM_MR1,
	UARTDM_MR2,
	UARTDM_IMR,
	UARTDM_SR,
	UARTDM_CR,
	UARTDM_CSR,
	UARTDM_IPR,
	UARTDM_ISR,
	UARTDM_RX_TOTAL_SNAP,
	UARTDM_RFWR,
	UARTDM_TFWR,
	UARTDM_RF,
	UARTDM_TF,
	UARTDM_MISR,
	UARTDM_DMRX,
	UARTDM_NCF_TX,
	UARTDM_DMEN,
	UARTDM_BCR,
	UARTDM_TXFS,
	UARTDM_RXFS,
	UARTDM_LAST,
};

#define UARTDM_MR1_ADDR 0x0
#define UARTDM_MR2_ADDR 0x4

/* Backward Compatability Register for UARTDM Core v1.4 */
#define UARTDM_BCR_ADDR	0xc8

/*
 * UARTDM Core v1.4 STALE_IRQ_EMPTY bit defination
 * Stale interrupt will fire if bit is set when RX-FIFO is empty
 */
#define UARTDM_BCR_STALE_IRQ_EMPTY	0x2

/* TRANSFER_CONTROL Register for UARTDM Core v1.4 */
#define UARTDM_RX_TRANS_CTRL_ADDR      0xcc

/* TRANSFER_CONTROL Register bits */
#define RX_STALE_AUTO_RE_EN		0x1
#define RX_TRANS_AUTO_RE_ACTIVATE	0x2
#define RX_DMRX_CYCLIC_EN		0x4

/* write only register */
#define UARTDM_CSR_115200 0xFF
#define UARTDM_CSR_57600  0xEE
#define UARTDM_CSR_38400  0xDD
#define UARTDM_CSR_28800  0xCC
#define UARTDM_CSR_19200  0xBB
#define UARTDM_CSR_14400  0xAA
#define UARTDM_CSR_9600   0x99
#define UARTDM_CSR_7200   0x88
#define UARTDM_CSR_4800   0x77
#define UARTDM_CSR_3600   0x66
#define UARTDM_CSR_2400   0x55
#define UARTDM_CSR_1200   0x44
#define UARTDM_CSR_600    0x33
#define UARTDM_CSR_300    0x22
#define UARTDM_CSR_150    0x11
#define UARTDM_CSR_75     0x00

/* write only register */
#define UARTDM_IPR_ADDR 0x18
#define UARTDM_TFWR_ADDR 0x1c
#define UARTDM_RFWR_ADDR 0x20
#define UARTDM_HCR_ADDR 0x24
#define UARTDM_DMRX_ADDR 0x34
#define UARTDM_DMEN_ADDR 0x3c

/* UART_DM_NO_CHARS_FOR_TX */
#define UARTDM_NCF_TX_ADDR 0x40

#define UARTDM_BADR_ADDR 0x44

#define UARTDM_SIM_CFG_ADDR 0x80

/* Read Only register */
#define UARTDM_TXFS_ADDR 0x4C
#define UARTDM_RXFS_ADDR 0x50

/* Register field Mask Mapping */
#define UARTDM_SR_RX_BREAK_BMSK	        BIT(6)
#define UARTDM_SR_PAR_FRAME_BMSK	BIT(5)
#define UARTDM_SR_OVERRUN_BMSK		BIT(4)
#define UARTDM_SR_TXEMT_BMSK		BIT(3)
#define UARTDM_SR_TXRDY_BMSK		BIT(2)
#define UARTDM_SR_RXRDY_BMSK		BIT(0)

#define UARTDM_CR_TX_DISABLE_BMSK	BIT(3)
#define UARTDM_CR_RX_DISABLE_BMSK	BIT(1)
#define UARTDM_CR_TX_EN_BMSK		BIT(2)
#define UARTDM_CR_RX_EN_BMSK		BIT(0)

/* UARTDM_CR channel_comman bit value (register field is bits 8:4) */
#define RESET_RX		0x10
#define RESET_TX		0x20
#define RESET_ERROR_STATUS	0x30
#define RESET_BREAK_INT		0x40
#define START_BREAK		0x50
#define STOP_BREAK		0x60
#define RESET_CTS		0x70
#define RESET_STALE_INT		0x80
#define RFR_LOW			0xD0
#define RFR_HIGH		0xE0
#define CR_PROTECTION_EN	0x100
#define STALE_EVENT_ENABLE	0x500
#define STALE_EVENT_DISABLE	0x600
#define FORCE_STALE_EVENT	0x400
#define CLEAR_TX_READY		0x300
#define RESET_TX_ERROR		0x800
#define RESET_TX_DONE		0x810

/*
 * UARTDM_CR BAM IFC comman bit value
 * for UARTDM Core v1.4
 */
#define START_RX_BAM_IFC	0x850
#define START_TX_BAM_IFC	0x860

#define UARTDM_MR1_AUTO_RFR_LEVEL1_BMSK 0xffffff00
#define UARTDM_MR1_AUTO_RFR_LEVEL0_BMSK 0x3f
#define UARTDM_MR1_CTS_CTL_BMSK 0x40
#define UARTDM_MR1_RX_RDY_CTL_BMSK 0x80

/*
 * UARTDM Core v1.4 MR2_RFR_CTS_LOOP bitmask
 * Enables internal loopback between RFR_N of
 * RX channel and CTS_N of TX channel.
 */
#define UARTDM_MR2_RFR_CTS_LOOP_MODE_BMSK	0x400

#define UARTDM_MR2_LOOP_MODE_BMSK		0x80
#define UARTDM_MR2_ERROR_MODE_BMSK		0x40
#define UARTDM_MR2_BITS_PER_CHAR_BMSK		0x30
#define UARTDM_MR2_RX_ZERO_CHAR_OFF		0x100
#define UARTDM_MR2_RX_ERROR_CHAR_OFF		0x200
#define UARTDM_MR2_RX_BREAK_ZERO_CHAR_OFF	0x100

#define UARTDM_MR2_BITS_PER_CHAR_8	(0x3 << 4)

/* bits per character configuration */
#define FIVE_BPC  (0 << 4)
#define SIX_BPC   (1 << 4)
#define SEVEN_BPC (2 << 4)
#define EIGHT_BPC (3 << 4)

#define UARTDM_MR2_STOP_BIT_LEN_BMSK 0xc
#define STOP_BIT_ONE (1 << 2)
#define STOP_BIT_TWO (3 << 2)

#define UARTDM_MR2_PARITY_MODE_BMSK 0x3

/* Parity configuration */
#define NO_PARITY 0x0
#define EVEN_PARITY 0x2
#define ODD_PARITY 0x1
#define SPACE_PARITY 0x3

#define UARTDM_IPR_STALE_TIMEOUT_MSB_BMSK 0xffffff80
#define UARTDM_IPR_STALE_LSB_BMSK 0x1f

/* These can be used for both ISR and IMR register */
#define UARTDM_ISR_TX_READY_BMSK	BIT(7)
#define UARTDM_ISR_CURRENT_CTS_BMSK	BIT(6)
#define UARTDM_ISR_DELTA_CTS_BMSK	BIT(5)
#define UARTDM_ISR_RXLEV_BMSK		BIT(4)
#define UARTDM_ISR_RXSTALE_BMSK		BIT(3)
#define UARTDM_ISR_RXBREAK_BMSK		BIT(2)
#define UARTDM_ISR_RXHUNT_BMSK		BIT(1)
#define UARTDM_ISR_TXLEV_BMSK		BIT(0)

/* Field definitions for UART_DM_DMEN*/
#define UARTDM_TX_DM_EN_BMSK 0x1
#define UARTDM_RX_DM_EN_BMSK 0x2

/*
 * UARTDM Core v1.4 bitmask
 * Bitmasks for enabling Rx and Tx BAM Interface
 */
#define UARTDM_TX_BAM_ENABLE_BMSK 0x4
#define UARTDM_RX_BAM_ENABLE_BMSK 0x8

/*
 * Some of the BLSP Based UART Core(v14) existing register offsets
 * are different compare to GSBI based UART Core(v13)
 * Hence add the changed register offsets for UART Core v14
 */
#ifdef CONFIG_MSM_UARTDM_Core_v14

/* write only register */
#define UARTDM_CSR_ADDR    0xa0

/* write only register */
#define UARTDM_TF_ADDR   0x100
#define UARTDM_TF2_ADDR  0x104
#define UARTDM_TF3_ADDR  0x108
#define UARTDM_TF4_ADDR  0x10c
#define UARTDM_TF5_ADDR  0x110
#define UARTDM_TF6_ADDR  0x114
#define UARTDM_TF7_ADDR  0x118
#define UARTDM_TF8_ADDR  0x11c
#define UARTDM_TF9_ADDR  0x120
#define UARTDM_TF10_ADDR 0x124
#define UARTDM_TF11_ADDR 0x128
#define UARTDM_TF12_ADDR 0x12c
#define UARTDM_TF13_ADDR 0x130
#define UARTDM_TF14_ADDR 0x134
#define UARTDM_TF15_ADDR 0x138
#define UARTDM_TF16_ADDR 0x13c

/* write only register */
#define UARTDM_CR_ADDR 0xa8
/* write only register */
#define UARTDM_IMR_ADDR 0xb0
#define UARTDM_IRDA_ADDR 0xb8

/* Read Only register */
#define UARTDM_SR_ADDR 0xa4

/* Read Only register */
#define UARTDM_RF_ADDR   0x140
#define UARTDM_RF2_ADDR  0x144
#define UARTDM_RF3_ADDR  0x148
#define UARTDM_RF4_ADDR  0x14c
#define UARTDM_RF5_ADDR  0x150
#define UARTDM_RF6_ADDR  0x154
#define UARTDM_RF7_ADDR  0x158
#define UARTDM_RF8_ADDR  0x15c
#define UARTDM_RF9_ADDR  0x160
#define UARTDM_RF10_ADDR 0x164
#define UARTDM_RF11_ADDR 0x168
#define UARTDM_RF12_ADDR 0x16c
#define UARTDM_RF13_ADDR 0x170
#define UARTDM_RF14_ADDR 0x174
#define UARTDM_RF15_ADDR 0x178
#define UARTDM_RF16_ADDR 0x17c

/* Read Only register */
#define UARTDM_MISR_ADDR 0xac

/* Read Only register */
#define UARTDM_ISR_ADDR 0xb4
#define UARTDM_RX_TOTAL_SNAP_ADDR 0xbc

#else

/* Register offsets for UART Core v13 */

/* write only register */
#define UARTDM_CSR_ADDR    0x8

/* write only register */
#define UARTDM_TF_ADDR   0x70
#define UARTDM_TF2_ADDR  0x74
#define UARTDM_TF3_ADDR  0x78
#define UARTDM_TF4_ADDR  0x7c

/* write only register */
#define UARTDM_CR_ADDR 0x10
/* write only register */
#define UARTDM_IMR_ADDR 0x14
#define UARTDM_IRDA_ADDR 0x38

/* Read Only register */
#define UARTDM_SR_ADDR 0x8

/* Read Only register */
#define UARTDM_RF_ADDR   0x70
#define UARTDM_RF2_ADDR  0x74
#define UARTDM_RF3_ADDR  0x78
#define UARTDM_RF4_ADDR  0x7c

/* Read Only register */
#define UARTDM_MISR_ADDR 0x10

/* Read Only register */
#define UARTDM_ISR_ADDR 0x14
#define UARTDM_RX_TOTAL_SNAP_ADDR 0x38

#endif

#endif /* MSM_SERIAL_HS_HWREG_H */