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/* $FreeBSD: release/9.1.0/sys/dev/usb/serial/umcs.h 222696 2011-06-04 20:40:24Z hselasky $ */ /*- * Copyright (c) 2010 Lev Serebryakov <lev@FreeBSD.org>. * All rights reserved. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */ #ifndef _UMCS7840_H_ #define _UMCS7840_H_ #define UMCS7840_MAX_PORTS 4 #define UMCS7840_READ_LENGTH 1 /* bytes */ #define UMCS7840_CTRL_TIMEOUT 500 /* ms */ /* Read/Wrtire registers vendor commands */ #define MCS7840_RDREQ 0x0d #define MCS7840_WRREQ 0x0e /* Read/Wrtie EEPROM values */ #define MCS7840_EEPROM_RW_WVALUE 0x0900 /* * All these registers are documented only in full datasheet, * which can be requested from MosChip tech support. */ #define MCS7840_DEV_REG_SP1 0x00 /* Options for for UART 1, R/W */ #define MCS7840_DEV_REG_CONTROL1 0x01 /* Control bits for UART 1, * R/W */ #define MCS7840_DEV_REG_PINPONGHIGH 0x02 /* High bits of ping-pong * register, R/W */ #define MCS7840_DEV_REG_PINPONGLOW 0x03 /* Low bits of ping-pong * register, R/W */ /* DCRx_1 Registers goes here (see below, they are documented) */ #define MCS7840_DEV_REG_GPIO 0x07 /* GPIO_0 and GPIO_1 bits, * undocumented, see notes * below R/W */ #define MCS7840_DEV_REG_SP2 0x08 /* Options for for UART 2, R/W */ #define MCS7840_DEV_REG_CONTROL2 0x09 /* Control bits for UART 2, * R/W */ #define MCS7840_DEV_REG_SP3 0x0a /* Options for for UART 3, R/W */ #define MCS7840_DEV_REG_CONTROL3 0x0b /* Control bits for UART 3, * R/W */ #define MCS7840_DEV_REG_SP4 0x0c /* Options for for UART 4, R/W */ #define MCS7840_DEV_REG_CONTROL4 0x0d /* Control bits for UART 4, * R/W */ #define MCS7840_DEV_REG_PLL_DIV_M 0x0e /* Pre-diviedr for PLL, R/W */ #define MCS7840_DEV_REG_UNKNOWN1 0x0f /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_PLL_DIV_N 0x10 /* Loop divider for PLL, R/W */ #define MCS7840_DEV_REG_CLOCK_MUX 0x12 /* PLL input clock & Interrupt * endpoint control, R/W */ #define MCS7840_DEV_REG_UNKNOWN2 0x11 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_CLOCK_SELECT12 0x13 /* Clock source for ports 1 & * 2, R/W */ #define MCS7840_DEV_REG_CLOCK_SELECT34 0x14 /* Clock source for ports 3 & * 4, R/W */ #define MCS7840_DEV_REG_UNKNOWN3 0x15 /* NOT MENTIONED AND NOT USED */ /* DCRx_2-DCRx_4 Registers goes here (see below, they are documented) */ #define MCS7840_DEV_REG_UNKNOWN4 0x1f /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWN5 0x20 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWN6 0x21 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWN7 0x22 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWN8 0x23 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWN9 0x24 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWNA 0x25 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWNB 0x26 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWNC 0x27 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWND 0x28 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWNE 0x29 /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_UNKNOWNF 0x2a /* NOT MENTIONED AND NOT USED */ #define MCS7840_DEV_REG_MODE 0x2b /* Hardware configuration, * R/Only */ #define MCS7840_DEV_REG_SP1_ICG 0x2c /* Inter character gap * configuration for Port 1, * R/W */ #define MCS7840_DEV_REG_SP2_ICG 0x2d /* Inter character gap * configuration for Port 2, * R/W */ #define MCS7840_DEV_REG_SP3_ICG 0x2e /* Inter character gap * configuration for Port 3, * R/W */ #define MCS7840_DEV_REG_SP4_ICG 0x2f /* Inter character gap * configuration for Port 4, * R/W */ #define MCS7840_DEV_REG_RX_SAMPLING12 0x30 /* RX sampling for ports 1 & * 2, R/W */ #define MCS7840_DEV_REG_RX_SAMPLING34 0x31 /* RX sampling for ports 3 & * 4, R/W */ #define MCS7840_DEV_REG_BI_FIFO_STAT1 0x32 /* Bulk-In FIFO Stat for Port * 1, contains number of * availiable bytes, R/Only */ #define MCS7840_DEV_REG_BO_FIFO_STAT1 0x33 /* Bulk-out FIFO Stat for Port * 1, contains number of * availiable bytes, R/Only */ #define MCS7840_DEV_REG_BI_FIFO_STAT2 0x34 /* Bulk-In FIFO Stat for Port * 2, contains number of * availiable bytes, R/Only */ #define MCS7840_DEV_REG_BO_FIFO_STAT2 0x35 /* Bulk-out FIFO Stat for Port * 2, contains number of * availiable bytes, R/Only */ #define MCS7840_DEV_REG_BI_FIFO_STAT3 0x36 /* Bulk-In FIFO Stat for Port * 3, contains number of * availiable bytes, R/Only */ #define MCS7840_DEV_REG_BO_FIFO_STAT3 0x37 /* Bulk-out FIFO Stat for Port * 3, contains number of * availiable bytes, R/Only */ #define MCS7840_DEV_REG_BI_FIFO_STAT4 0x38 /* Bulk-In FIFO Stat for Port * 4, contains number of * availiable bytes, R/Only */ #define MCS7840_DEV_REG_BO_FIFO_STAT4 0x39 /* Bulk-out FIFO Stat for Port * 4, contains number of * availiable bytes, R/Only */ #define MCS7840_DEV_REG_ZERO_PERIOD1 0x3a /* Period between zero out * frames for Port 1, R/W */ #define MCS7840_DEV_REG_ZERO_PERIOD2 0x3b /* Period between zero out * frames for Port 1, R/W */ #define MCS7840_DEV_REG_ZERO_PERIOD3 0x3c /* Period between zero out * frames for Port 1, R/W */ #define MCS7840_DEV_REG_ZERO_PERIOD4 0x3d /* Period between zero out * frames for Port 1, R/W */ #define MCS7840_DEV_REG_ZERO_ENABLE 0x3e /* Enable/disable of zero out * frames, R/W */ #define MCS7840_DEV_REG_THR_VAL_LOW1 0x3f /* Low 8 bits of threshhold * value for Bulk-Out for Port * 1, R/W */ #define MCS7840_DEV_REG_THR_VAL_HIGH1 0x40 /* High 1 bit of threshhold * value for Bulk-Out and * enable flag for Port 1, R/W */ #define MCS7840_DEV_REG_THR_VAL_LOW2 0x41 /* Low 8 bits of threshhold * value for Bulk-Out for Port * 2, R/W */ #define MCS7840_DEV_REG_THR_VAL_HIGH2 0x42 /* High 1 bit of threshhold * value for Bulk-Out and * enable flag for Port 2, R/W */ #define MCS7840_DEV_REG_THR_VAL_LOW3 0x43 /* Low 8 bits of threshhold * value for Bulk-Out for Port * 3, R/W */ #define MCS7840_DEV_REG_THR_VAL_HIGH3 0x44 /* High 1 bit of threshhold * value for Bulk-Out and * enable flag for Port 3, R/W */ #define MCS7840_DEV_REG_THR_VAL_LOW4 0x45 /* Low 8 bits of threshhold * value for Bulk-Out for Port * 4, R/W */ #define MCS7840_DEV_REG_THR_VAL_HIGH4 0x46 /* High 1 bit of threshhold * value for Bulk-Out and * enable flag for Port 4, R/W */ /* Bits for SPx registers */ #define MCS7840_DEV_SPx_LOOP_PIPES 0x01 /* Loop Bulk-Out FIFO to the * Bulk-In FIFO, default = 0 */ #define MCS7840_DEV_SPx_SKIP_ERR_DATA 0x02 /* Drop data bytes from UART, * which were recevied with * errors, default = 0 */ #define MCS7840_DEV_SPx_RESET_OUT_FIFO 0x04 /* Reset Bulk-Out FIFO */ #define MCS7840_DEV_SPx_RESET_IN_FIFO 0x08 /* Reset Bulk-In FIFO */ #define MCS7840_DEV_SPx_CLOCK_MASK 0x70 /* Mask to extract Baud CLK * source */ #define MCS7840_DEV_SPx_CLOCK_X1 0x00 /* CLK = 1.8432Mhz, max speed * = 115200 bps, default */ #define MCS7840_DEV_SPx_CLOCK_X2 0x10 /* CLK = 3.6864Mhz, max speed * = 230400 bps */ #define MCS7840_DEV_SPx_CLOCK_X35 0x20 /* CLK = 6.4512Mhz, max speed * = 403200 bps */ #define MCS7840_DEV_SPx_CLOCK_X4 0x30 /* CLK = 7.3728Mhz, max speed * = 460800 bps */ #define MCS7840_DEV_SPx_CLOCK_X7 0x40 /* CLK = 12.9024Mhz, max speed * = 806400 bps */ #define MCS7840_DEV_SPx_CLOCK_X8 0x50 /* CLK = 14.7456Mhz, max speed * = 921600 bps */ #define MCS7840_DEV_SPx_CLOCK_24MHZ 0x60 /* CLK = 24.0000Mhz, max speed * = 1.5 Mbps */ #define MCS7840_DEV_SPx_CLOCK_48MHZ 0x70 /* CLK = 48.0000Mhz, max speed * = 3.0 Mbps */ #define MCS7840_DEV_SPx_CLOCK_SHIFT 4 /* Value 0..7 can be shifted * to get clock value */ #define MCS7840_DEV_SPx_UART_RESET 0x80 /* Reset UART */ /* Bits for CONTROLx registers */ #define MCS7840_DEV_CONTROLx_HWFC 0x01 /* Enable hardware flow * control (when power * down? It is unclear * in documents), * default = 0 */ #define MCS7840_DEV_CONTROLx_UNUNSED1 0x02 /* Reserved */ #define MCS7840_DEV_CONTROLx_CTS_ENABLE 0x04 /* CTS changes are * translated to MSR, * default = 0 */ #define MCS7840_DEV_CONTROLx_UNUSED2 0x08 /* Reserved for ports * 2,3,4 */ #define MCS7840_DEV_CONTROL1_DRIVER_DONE 0x08 /* USB enumerating is * finished, USB * enumeration memory * can be used as FIFOs */ #define MCS7840_DEV_CONTROLx_RX_NEGATE 0x10 /* Negate RX input, * works for IrDA mode * only, default = 0 */ #define MCS7840_DEV_CONTROLx_RX_DISABLE 0x20 /* Disable RX logic, * works only for * RS-232/RS-485 mode, * default = 0 */ #define MCS7840_DEV_CONTROLx_FSM_CONTROL 0x40 /* Disable RX FSM when * TX is in progress, * works for IrDA mode * only, default = 0 */ #define MCS7840_DEV_CONTROLx_UNUSED3 0x80 /* Reserved */ /* * Bits for PINPONGx registers * These registers control how often two input buffers * for Bulk-In FIFOs are swapped. One of buffers is used * for USB trnasfer, other for receiving data from UART. * Exact meaning of 15 bit value in these registers is unknown */ #define MCS7840_DEV_PINPONGHIGH_MULT 128 /* Only 7 bits in PINPONGLOW * register */ #define MCS7840_DEV_PINPONGLOW_BITS 7 /* Only 7 bits in PINPONGLOW * register */ /* * THIS ONE IS UNDOCUMENTED IN FULL DATASHEET, but e-mail from tech support * confirms, that it is register for GPIO_0 and GPIO_1 data input/output. * Chips has 2 GPIO, but first one (lower bit) MUST be used by device * authors as "number of port" indicator, grounded (0) for two-port * devices and pulled-up to 1 for 4-port devices. */ #define MCS7840_DEV_GPIO_4PORTS 0x01 /* Device has 4 ports * configured */ #define MCS7840_DEV_GPIO_GPIO_0 0x01 /* The same as above */ #define MCS7840_DEV_GPIO_GPIO_1 0x02 /* GPIO_1 data */ /* * Constants for PLL dividers * Ouptut frequency of PLL is: * Fout = (N/M) * Fin. * Default PLL input frequency Fin is 12Mhz (on-chip). */ #define MCS7840_DEV_PLL_DIV_M_BITS 6 /* Number of useful bits for M * divider */ #define MCS7840_DEV_PLL_DIV_M_MASK 0x3f /* Mask for M divider */ #define MCS7840_DEV_PLL_DIV_M_MIN 1 /* Minimum value for M, 0 is * forbidden */ #define MCS7840_DEV_PLL_DIV_M_DEF 1 /* Default value for M */ #define MCS7840_DEV_PLL_DIV_M_MAX 63 /* Maximum value for M */ #define MCS7840_DEV_PLL_DIV_N_BITS 6 /* Number of useful bits for N * divider */ #define MCS7840_DEV_PLL_DIV_N_MASK 0x3f /* Mask for N divider */ #define MCS7840_DEV_PLL_DIV_N_MIN 1 /* Minimum value for N, 0 is * forbidden */ #define MCS7840_DEV_PLL_DIV_N_DEF 8 /* Default value for N */ #define MCS7840_DEV_PLL_DIV_N_MAX 63 /* Maximum value for N */ /* Bits for CLOCK_MUX register */ #define MCS7840_DEV_CLOCK_MUX_INPUTMASK 0x03 /* Mask to extract PLL clock * input */ #define MCS7840_DEV_CLOCK_MUX_IN12MHZ 0x00 /* 12Mhz PLL input, default */ #define MCS7840_DEV_CLOCK_MUX_INEXTRN 0x01 /* External (device-depended) * PLL input */ #define MCS7840_DEV_CLOCK_MUX_INRSV1 0x02 /* Reserved */ #define MCS7840_DEV_CLOCK_MUX_INRSV2 0x03 /* Reserved */ #define MCS7840_DEV_CLOCK_MUX_PLLHIGH 0x04 /* 0 = PLL Output is * 20MHz-100MHz (default), 1 = * 100MHz-300MHz range */ #define MCS7840_DEV_CLOCK_MUX_INTRFIFOS 0x08 /* Enable additional 8 bytes * fro Interrupt USB pipe with * USB FIFOs statuses, default * = 0 */ #define MCS7840_DEV_CLOCK_MUX_RESERVED1 0x10 /* Unused */ #define MCS7840_DEV_CLOCK_MUX_RESERVED2 0x20 /* Unused */ #define MCS7840_DEV_CLOCK_MUX_RESERVED3 0x40 /* Unused */ #define MCS7840_DEV_CLOCK_MUX_RESERVED4 0x80 /* Unused */ /* Bits for CLOCK_SELECTxx registers */ #define MCS7840_DEV_CLOCK_SELECT1_MASK 0x07 /* Bits for port 1 in * CLOCK_SELECT12 */ #define MCS7840_DEV_CLOCK_SELECT1_SHIFT 0 /* Shift for port 1in * CLOCK_SELECT12 */ #define MCS7840_DEV_CLOCK_SELECT2_MASK 0x38 /* Bits for port 2 in * CLOCK_SELECT12 */ #define MCS7840_DEV_CLOCK_SELECT2_SHIFT 3 /* Shift for port 2 in * CLOCK_SELECT12 */ #define MCS7840_DEV_CLOCK_SELECT3_MASK 0x07 /* Bits for port 3 in * CLOCK_SELECT23 */ #define MCS7840_DEV_CLOCK_SELECT3_SHIFT 0 /* Shift for port 3 in * CLOCK_SELECT23 */ #define MCS7840_DEV_CLOCK_SELECT4_MASK 0x38 /* Bits for port 4 in * CLOCK_SELECT23 */ #define MCS7840_DEV_CLOCK_SELECT4_SHIFT 3 /* Shift for port 4 in * CLOCK_SELECT23 */ #define MCS7840_DEV_CLOCK_SELECT_STD 0x00 /* STANDARD baudrate derived * from 96Mhz, default for all * ports */ #define MCS7840_DEV_CLOCK_SELECT_30MHZ 0x01 /* 30Mhz */ #define MCS7840_DEV_CLOCK_SELECT_96MHZ 0x02 /* 96Mhz direct */ #define MCS7840_DEV_CLOCK_SELECT_120MHZ 0x03 /* 120Mhz */ #define MCS7840_DEV_CLOCK_SELECT_PLL 0x04 /* PLL output (see for M and N * dividers) */ #define MCS7840_DEV_CLOCK_SELECT_EXT 0x05 /* External clock input * (device-dependend) */ #define MCS7840_DEV_CLOCK_SELECT_RES1 0x06 /* Unused */ #define MCS7840_DEV_CLOCK_SELECT_RES2 0x07 /* Unused */ /* Bits for MODE register */ #define MCS7840_DEV_MODE_RESERVED1 0x01 /* Unused */ #define MCS7840_DEV_MODE_RESET 0x02 /* 0: RESET = Active High * (default), 1: Reserved (?) */ #define MCS7840_DEV_MODE_SER_PRSNT 0x04 /* 0: Reserved, 1: Do not use * hardocded values (default) * (?) */ #define MCS7840_DEV_MODE_PLLBYPASS 0x08 /* 1: PLL output is bypassed, * default = 0 */ #define MCS7840_DEV_MODE_PORBYPASS 0x10 /* 1: Power-On Reset is * bypassed, default = 0 */ #define MCS7840_DEV_MODE_SELECT24S 0x20 /* 0: 4 Serial Ports / IrDA * active, 1: 2 Serial Ports / * IrDA active */ #define MCS7840_DEV_MODE_EEPROMWR 0x40 /* EEPROM write is enabled, * default */ #define MCS7840_DEV_MODE_IRDA 0x80 /* IrDA mode is activated * (could be turned on), * default */ /* Bits for SPx ICG */ #define MCS7840_DEV_SPx_ICG_DEF 0x24 /* All 8 bits is used as * number of BAUD clocks of * pause */ /* * Bits for RX_SAMPLINGxx registers * These registers control when bit value will be sampled within * the baud period. * 0 is very beginning of period, 15 is very end, 7 is the middle. */ #define MCS7840_DEV_RX_SAMPLING1_MASK 0x0f /* Bits for port 1 in * RX_SAMPLING12 */ #define MCS7840_DEV_RX_SAMPLING1_SHIFT 0 /* Shift for port 1in * RX_SAMPLING12 */ #define MCS7840_DEV_RX_SAMPLING2_MASK 0xf0 /* Bits for port 2 in * RX_SAMPLING12 */ #define MCS7840_DEV_RX_SAMPLING2_SHIFT 4 /* Shift for port 2 in * RX_SAMPLING12 */ #define MCS7840_DEV_RX_SAMPLING3_MASK 0x0f /* Bits for port 3 in * RX_SAMPLING23 */ #define MCS7840_DEV_RX_SAMPLING3_SHIFT 0 /* Shift for port 3 in * RX_SAMPLING23 */ #define MCS7840_DEV_RX_SAMPLING4_MASK 0xf0 /* Bits for port 4 in * RX_SAMPLING23 */ #define MCS7840_DEV_RX_SAMPLING4_SHIFT 4 /* Shift for port 4 in * RX_SAMPLING23 */ #define MCS7840_DEV_RX_SAMPLINGx_MIN 0 /* Max for any RX Sampling */ #define MCS7840_DEV_RX_SAMPLINGx_DEF 7 /* Default for any RX * Sampling, center of period */ #define MCS7840_DEV_RX_SAMPLINGx_MAX 15 /* Min for any RX Sampling */ /* Bits for ZERO_PERIODx */ #define MCS7840_DEV_ZERO_PERIODx_DEF 20 /* Number of Bulk-in requests * befor sending zero-sized * reply */ /* Bits for ZERO_ENABLE */ #define MCS7840_DEV_ZERO_ENABLE_PORT1 0x01 /* Enable of sending * zero-sized replies for port * 1, default */ #define MCS7840_DEV_ZERO_ENABLE_PORT2 0x02 /* Enable of sending * zero-sized replies for port * 2, default */ #define MCS7840_DEV_ZERO_ENABLE_PORT3 0x04 /* Enable of sending * zero-sized replies for port * 3, default */ #define MCS7840_DEV_ZERO_ENABLE_PORT4 0x08 /* Enable of sending * zero-sized replies for port * 4, default */ /* Bits for THR_VAL_HIGHx */ #define MCS7840_DEV_THR_VAL_HIGH_MASK 0x01 /* Only one bit is used */ #define MCS7840_DEV_THR_VAL_HIGH_MUL 256 /* This one bit is means "256" */ #define MCS7840_DEV_THR_VAL_HIGH_SHIFT 8 /* This one bit is means "256" */ #define MCS7840_DEV_THR_VAL_HIGH_ENABLE 0x80 /* Enable threshold */ /* These are documented in "public" datasheet */ #define MCS7840_DEV_REG_DCR0_1 0x04 /* Device contol register 0 for Port * 1, R/W */ #define MCS7840_DEV_REG_DCR1_1 0x05 /* Device contol register 1 for Port * 1, R/W */ #define MCS7840_DEV_REG_DCR2_1 0x06 /* Device contol register 2 for Port * 1, R/W */ #define MCS7840_DEV_REG_DCR0_2 0x16 /* Device contol register 0 for Port * 2, R/W */ #define MCS7840_DEV_REG_DCR1_2 0x17 /* Device contol register 1 for Port * 2, R/W */ #define MCS7840_DEV_REG_DCR2_2 0x18 /* Device contol register 2 for Port * 2, R/W */ #define MCS7840_DEV_REG_DCR0_3 0x19 /* Device contol register 0 for Port * 3, R/W */ #define MCS7840_DEV_REG_DCR1_3 0x1a /* Device contol register 1 for Port * 3, R/W */ #define MCS7840_DEV_REG_DCR2_3 0x1b /* Device contol register 2 for Port * 3, R/W */ #define MCS7840_DEV_REG_DCR0_4 0x1c /* Device contol register 0 for Port * 4, R/W */ #define MCS7840_DEV_REG_DCR1_4 0x1d /* Device contol register 1 for Port * 4, R/W */ #define MCS7840_DEV_REG_DCR2_4 0x1e /* Device contol register 2 for Port * 4, R/W */ /* Bits of DCR0 registers, documented in datasheet */ #define MCS7840_DEV_DCR0_PWRSAVE 0x01 /* Shutdown transiver * when USB Suspend is * engaged, default = 1 */ #define MCS7840_DEV_DCR0_RESERVED1 0x02 /* Unused */ #define MCS7840_DEV_DCR0_GPIO_MODE_MASK 0x0c /* GPIO Mode bits, WORKS * ONLY FOR PORT 1 */ #define MCS7840_DEV_DCR0_GPIO_MODE_IN 0x00 /* GPIO Mode - Input * (0b00), WORKS ONLY * FOR PORT 1 */ #define MCS7840_DEV_DCR0_GPIO_MODE_OUT 0x08 /* GPIO Mode - Input * (0b10), WORKS ONLY * FOR PORT 1 */ #define MCS7840_DEV_DCR0_RTS_ACTIVE_HIGH 0x10 /* RTS Active is HIGH, * default = 0 (low) */ #define MCS7840_DEV_DCR0_RTS_AUTO 0x20 /* RTS is controlled by * state of TX buffer, * default = 0 * (controlled by MCR) */ #define MCS7840_DEV_DCR0_IRDA 0x40 /* IrDA mode */ #define MCS7840_DEV_DCR0_RESERVED2 0x80 /* Unused */ /* Bits of DCR1 registers, documented in datasheet */ #define MCS7840_DEV_DCR1_GPIO_CURRENT_MASK 0x03 /* Mask to extract GPIO * current value, WORKS * ONLY FOR PORT 1 */ #define MCS7840_DEV_DCR1_GPIO_CURRENT_6MA 0x00 /* GPIO output current * 6mA, WORKS ONLY FOR * PORT 1 */ #define MCS7840_DEV_DCR1_GPIO_CURRENT_8MA 0x01 /* GPIO output current * 8mA, defauilt, WORKS * ONLY FOR PORT 1 */ #define MCS7840_DEV_DCR1_GPIO_CURRENT_10MA 0x02 /* GPIO output current * 10mA, WORKS ONLY FOR * PORT 1 */ #define MCS7840_DEV_DCR1_GPIO_CURRENT_12MA 0x03 /* GPIO output current * 12mA, WORKS ONLY FOR * PORT 1 */ #define MCS7840_DEV_DCR1_UART_CURRENT_MASK 0x0c /* Mask to extract UART * signals current value */ #define MCS7840_DEV_DCR1_UART_CURRENT_6MA 0x00 /* UART output current * 6mA */ #define MCS7840_DEV_DCR1_UART_CURRENT_8MA 0x04 /* UART output current * 8mA, defauilt */ #define MCS7840_DEV_DCR1_UART_CURRENT_10MA 0x08 /* UART output current * 10mA */ #define MCS7840_DEV_DCR1_UART_CURRENT_12MA 0x0c /* UART output current * 12mA */ #define MCS7840_DEV_DCR1_WAKEUP_DISABLE 0x10 /* Disable Remote USB * Wakeup */ #define MCS7840_DEV_DCR1_PLLPWRDOWN_DISABLE 0x20 /* Disable PLL power * down when not needed, * WORKS ONLY FOR PORT 1 */ #define MCS7840_DEV_DCR1_LONG_INTERRUPT 0x40 /* Enable 13 bytes of * interrupt data, with * FIFO statistics, * WORKS ONLY FOR PORT 1 */ #define MCS7840_DEV_DCR1_RESERVED1 0x80 /* Unused */ /* * Bits of DCR2 registers, documented in datasheet * Wakeup will work only if DCR0_IRDA = 0 (RS-xxx mode) and * DCR1_WAKEUP_DISABLE = 0 (wakeup enabled). */ #define MCS7840_DEV_DCR2_WAKEUP_CTS 0x01 /* Wakeup on CTS change, * default = 0 */ #define MCS7840_DEV_DCR2_WAKEUP_DCD 0x02 /* Wakeup on DCD change, * default = 0 */ #define MCS7840_DEV_DCR2_WAKEUP_RI 0x04 /* Wakeup on RI change, * default = 1 */ #define MCS7840_DEV_DCR2_WAKEUP_DSR 0x08 /* Wakeup on DSR change, * default = 0 */ #define MCS7840_DEV_DCR2_WAKEUP_RXD 0x10 /* Wakeup on RX Data change, * default = 0 */ #define MCS7840_DEV_DCR2_WAKEUP_RESUME 0x20 /* Wakeup issues RESUME * signal, DISCONNECT * otherwise, default = 1 */ #define MCS7840_DEV_DCR2_RESERVED1 0x40 /* Unused */ #define MCS7840_DEV_DCR2_SHDN_POLARITY 0x80 /* 0: Pin 12 Active Low, 1: * Pin 12 Active High, default * = 0 */ /* Interrupt endpoint bytes & bits */ #define MCS7840_IEP_FIFO_STATUS_INDEX 5 /* * Thesse can be calculated as "1 << portnumber" for Bulk-out and * "1 << (portnumber+1)" for Bulk-in */ #define MCS7840_IEP_BO_PORT1_HASDATA 0x01 #define MCS7840_IEP_BI_PORT1_HASDATA 0x02 #define MCS7840_IEP_BO_PORT2_HASDATA 0x04 #define MCS7840_IEP_BI_PORT2_HASDATA 0x08 #define MCS7840_IEP_BO_PORT3_HASDATA 0x10 #define MCS7840_IEP_BI_PORT3_HASDATA 0x20 #define MCS7840_IEP_BO_PORT4_HASDATA 0x40 #define MCS7840_IEP_BI_PORT4_HASDATA 0x80 /* Documented UART registers (fully compatible with 16550 UART) */ #define MCS7840_UART_REG_THR 0x00 /* Transmitter Holding * Register W/Only */ #define MCS7840_UART_REG_RHR 0x00 /* Receiver Holding Register * R/Only */ #define MCS7840_UART_REG_IER 0x01 /* Interrupt enable register - * R/W */ #define MCS7840_UART_REG_FCR 0x02 /* FIFO Control register - * W/Only */ #define MCS7840_UART_REG_ISR 0x02 /* Interrupt Status Registter * R/Only */ #define MCS7840_UART_REG_LCR 0x03 /* Line control register R/W */ #define MCS7840_UART_REG_MCR 0x04 /* Modem control register R/W */ #define MCS7840_UART_REG_LSR 0x05 /* Line status register R/Only */ #define MCS7840_UART_REG_MSR 0x06 /* Modem status register * R/Only */ #define MCS7840_UART_REG_SCRATCHPAD 0x07 /* Scratch pad register */ #define MCS7840_UART_REG_DLL 0x00 /* Low bits of BAUD divider */ #define MCS7840_UART_REG_DLM 0x01 /* High bits of BAUD divider */ /* IER bits */ #define MCS7840_UART_IER_RXREADY 0x01 /* RX Ready interrumpt mask */ #define MCS7840_UART_IER_TXREADY 0x02 /* TX Ready interrumpt mask */ #define MCS7840_UART_IER_RXSTAT 0x04 /* RX Status interrumpt mask */ #define MCS7840_UART_IER_MODEM 0x08 /* Modem status change * interrumpt mask */ #define MCS7840_UART_IER_SLEEP 0x10 /* SLEEP enable */ /* FCR bits */ #define MCS7840_UART_FCR_ENABLE 0x01 /* Enable FIFO */ #define MCS7840_UART_FCR_FLUSHRHR 0x02 /* Flush RHR and FIFO */ #define MCS7840_UART_FCR_FLUSHTHR 0x04 /* Flush THR and FIFO */ #define MCS7840_UART_FCR_RTLMASK 0xa0 /* Mask to select RHR * Interrupt Trigger level */ #define MCS7840_UART_FCR_RTL_1_1 0x00 /* L1 = 1, L2 = 1 */ #define MCS7840_UART_FCR_RTL_1_4 0x40 /* L1 = 1, L2 = 4 */ #define MCS7840_UART_FCR_RTL_1_8 0x80 /* L1 = 1, L2 = 8 */ #define MCS7840_UART_FCR_RTL_1_14 0xa0 /* L1 = 1, L2 = 14 */ /* ISR bits */ #define MCS7840_UART_ISR_NOPENDING 0x01 /* No interrupt pending */ #define MCS7840_UART_ISR_INTMASK 0x3f /* Mask to select interrupt * source */ #define MCS7840_UART_ISR_RXERR 0x06 /* Recevir error */ #define MCS7840_UART_ISR_RXHASDATA 0x04 /* Recevier has data */ #define MCS7840_UART_ISR_RXTIMEOUT 0x0c /* Recevier timeout */ #define MCS7840_UART_ISR_TXEMPTY 0x02 /* Transmitter empty */ #define MCS7840_UART_ISR_MSCHANGE 0x00 /* Modem status change */ /* LCR bits */ #define MCS7840_UART_LCR_DATALENMASK 0x03 /* Mask for data length */ #define MCS7840_UART_LCR_DATALEN5 0x00 /* 5 data bits */ #define MCS7840_UART_LCR_DATALEN6 0x01 /* 6 data bits */ #define MCS7840_UART_LCR_DATALEN7 0x02 /* 7 data bits */ #define MCS7840_UART_LCR_DATALEN8 0x03 /* 8 data bits */ #define MCS7840_UART_LCR_STOPBMASK 0x04 /* Mask for stop bits */ #define MCS7840_UART_LCR_STOPB1 0x00 /* 1 stop bit in any case */ #define MCS7840_UART_LCR_STOPB2 0x04 /* 1.5-2 stop bits depends on * data length */ #define MCS7840_UART_LCR_PARITYMASK 0x38 /* Mask for all parity data */ #define MCS7840_UART_LCR_PARITYON 0x08 /* Parity ON/OFF - ON */ #define MCS7840_UART_LCR_PARITYODD 0x00 /* Parity Odd */ #define MCS7840_UART_LCR_PARITYEVEN 0x10 /* Parity Even */ #define MCS7840_UART_LCR_PARITYODD 0x00 /* Parity Odd */ #define MCS7840_UART_LCR_PARITYFORCE 0x20 /* Force parity odd/even */ #define MCS7840_UART_LCR_BREAK 0x40 /* Send BREAK */ #define MCS7840_UART_LCR_DIVISORS 0x80 /* Map DLL/DLM instead of * xHR/IER */ /* LSR bits */ #define MCS7840_UART_LSR_RHRAVAIL 0x01 /* Data available for read */ #define MCS7840_UART_LSR_RHROVERRUN 0x02 /* Data FIFO/register overflow */ #define MCS7840_UART_LSR_PARITYERR 0x04 /* Parity error */ #define MCS7840_UART_LSR_FRAMEERR 0x10 /* Framing error */ #define MCS7840_UART_LSR_BREAKERR 0x20 /* BREAK sigmal received */ #define MCS7840_UART_LSR_THREMPTY 0x40 /* THR register is empty, * ready for transmit */ #define MCS7840_UART_LSR_HASERR 0x80 /* Has error in receiver FIFO */ /* MCR bits */ #define MCS7840_UART_MCR_DTR 0x01 /* Force DTR to be active * (low) */ #define MCS7840_UART_MCR_RTS 0x02 /* Force RTS to be active * (low) */ #define MCS7840_UART_MCR_IE 0x04 /* Enable interrupts (from * code, not documented) */ #define MCS7840_UART_MCR_LOOPBACK 0x10 /* Enable local loopback test * mode */ #define MCS7840_UART_MCR_CTSRTS 0x20 /* Enable CTS/RTS flow control * in 550 (FIFO) mode */ #define MCS7840_UART_MCR_DTRDSR 0x40 /* Enable DTR/DSR flow control * in 550 (FIFO) mode */ #define MCS7840_UART_MCR_DCD 0x80 /* Enable DCD flow control in * 550 (FIFO) mode */ /* MSR bits */ #define MCS7840_UART_MSR_DELTACTS 0x01 /* CTS was changed since last * read */ #define MCS7840_UART_MSR_DELTADSR 0x02 /* DSR was changed since last * read */ #define MCS7840_UART_MSR_DELTARI 0x04 /* RI was changed from low to * high since last read */ #define MCS7840_UART_MSR_DELTADCD 0x08 /* DCD was changed since last * read */ #define MCS7840_UART_MSR_NEGCTS 0x10 /* Negated CTS signal */ #define MCS7840_UART_MSR_NEGDSR 0x20 /* Negated DSR signal */ #define MCS7840_UART_MSR_NEGRI 0x40 /* Negated RI signal */ #define MCS7840_UART_MSR_NEGDCD 0x80 /* Negated DCD signal */ /* SCRATCHPAD bits */ #define MCS7840_UART_SCRATCHPAD_RS232 0x00 /* RS-485 disabled */ #define MCS7840_UART_SCRATCHPAD_RS485_DTRRX 0x80 /* RS-485 mode, DTR High * = RX */ #define MCS7840_UART_SCRATCHPAD_RS485_DTRTX 0xc0 /* RS-485 mode, DTR High * = TX */ #define MCS7840_CONFIG_INDEX 0 #define MCS7840_IFACE_INDEX 0 #endif