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1699 lines
44 KiB
1699 lines
44 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* TI 3410/5052 USB Serial Driver |
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* |
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* Copyright (C) 2004 Texas Instruments |
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* |
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* This driver is based on the Linux io_ti driver, which is |
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* Copyright (C) 2000-2002 Inside Out Networks |
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* Copyright (C) 2001-2002 Greg Kroah-Hartman |
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* |
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* For questions or problems with this driver, contact Texas Instruments |
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* technical support, or Al Borchers <[email protected]>, or |
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* Peter Berger <[email protected]>. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/errno.h> |
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#include <linux/firmware.h> |
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#include <linux/slab.h> |
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#include <linux/tty.h> |
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#include <linux/tty_driver.h> |
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#include <linux/tty_flip.h> |
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#include <linux/module.h> |
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#include <linux/spinlock.h> |
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#include <linux/ioctl.h> |
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#include <linux/serial.h> |
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#include <linux/kfifo.h> |
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#include <linux/mutex.h> |
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#include <linux/uaccess.h> |
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#include <linux/usb.h> |
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#include <linux/usb/serial.h> |
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/* Configuration ids */ |
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#define TI_BOOT_CONFIG 1 |
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#define TI_ACTIVE_CONFIG 2 |
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/* Vendor and product ids */ |
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#define TI_VENDOR_ID 0x0451 |
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#define IBM_VENDOR_ID 0x04b3 |
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#define TI_3410_PRODUCT_ID 0x3410 |
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#define IBM_4543_PRODUCT_ID 0x4543 |
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#define IBM_454B_PRODUCT_ID 0x454b |
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#define IBM_454C_PRODUCT_ID 0x454c |
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#define TI_3410_EZ430_ID 0xF430 /* TI ez430 development tool */ |
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#define TI_5052_BOOT_PRODUCT_ID 0x5052 /* no EEPROM, no firmware */ |
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#define TI_5152_BOOT_PRODUCT_ID 0x5152 /* no EEPROM, no firmware */ |
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#define TI_5052_EEPROM_PRODUCT_ID 0x505A /* EEPROM, no firmware */ |
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#define TI_5052_FIRMWARE_PRODUCT_ID 0x505F /* firmware is running */ |
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#define FRI2_PRODUCT_ID 0x5053 /* Fish River Island II */ |
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/* Multi-Tech vendor and product ids */ |
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#define MTS_VENDOR_ID 0x06E0 |
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#define MTS_GSM_NO_FW_PRODUCT_ID 0xF108 |
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#define MTS_CDMA_NO_FW_PRODUCT_ID 0xF109 |
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#define MTS_CDMA_PRODUCT_ID 0xF110 |
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#define MTS_GSM_PRODUCT_ID 0xF111 |
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#define MTS_EDGE_PRODUCT_ID 0xF112 |
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#define MTS_MT9234MU_PRODUCT_ID 0xF114 |
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#define MTS_MT9234ZBA_PRODUCT_ID 0xF115 |
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#define MTS_MT9234ZBAOLD_PRODUCT_ID 0x0319 |
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/* Abbott Diabetics vendor and product ids */ |
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#define ABBOTT_VENDOR_ID 0x1a61 |
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#define ABBOTT_STEREO_PLUG_ID 0x3410 |
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#define ABBOTT_PRODUCT_ID ABBOTT_STEREO_PLUG_ID |
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#define ABBOTT_STRIP_PORT_ID 0x3420 |
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/* Honeywell vendor and product IDs */ |
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#define HONEYWELL_VENDOR_ID 0x10ac |
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#define HONEYWELL_HGI80_PRODUCT_ID 0x0102 /* Honeywell HGI80 */ |
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/* Moxa UPORT 11x0 vendor and product IDs */ |
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#define MXU1_VENDOR_ID 0x110a |
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#define MXU1_1110_PRODUCT_ID 0x1110 |
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#define MXU1_1130_PRODUCT_ID 0x1130 |
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#define MXU1_1150_PRODUCT_ID 0x1150 |
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#define MXU1_1151_PRODUCT_ID 0x1151 |
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#define MXU1_1131_PRODUCT_ID 0x1131 |
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/* Commands */ |
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#define TI_GET_VERSION 0x01 |
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#define TI_GET_PORT_STATUS 0x02 |
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#define TI_GET_PORT_DEV_INFO 0x03 |
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#define TI_GET_CONFIG 0x04 |
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#define TI_SET_CONFIG 0x05 |
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#define TI_OPEN_PORT 0x06 |
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#define TI_CLOSE_PORT 0x07 |
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#define TI_START_PORT 0x08 |
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#define TI_STOP_PORT 0x09 |
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#define TI_TEST_PORT 0x0A |
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#define TI_PURGE_PORT 0x0B |
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#define TI_RESET_EXT_DEVICE 0x0C |
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#define TI_WRITE_DATA 0x80 |
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#define TI_READ_DATA 0x81 |
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#define TI_REQ_TYPE_CLASS 0x82 |
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/* Module identifiers */ |
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#define TI_I2C_PORT 0x01 |
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#define TI_IEEE1284_PORT 0x02 |
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#define TI_UART1_PORT 0x03 |
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#define TI_UART2_PORT 0x04 |
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#define TI_RAM_PORT 0x05 |
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/* Modem status */ |
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#define TI_MSR_DELTA_CTS 0x01 |
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#define TI_MSR_DELTA_DSR 0x02 |
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#define TI_MSR_DELTA_RI 0x04 |
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#define TI_MSR_DELTA_CD 0x08 |
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#define TI_MSR_CTS 0x10 |
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#define TI_MSR_DSR 0x20 |
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#define TI_MSR_RI 0x40 |
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#define TI_MSR_CD 0x80 |
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#define TI_MSR_DELTA_MASK 0x0F |
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#define TI_MSR_MASK 0xF0 |
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/* Line status */ |
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#define TI_LSR_OVERRUN_ERROR 0x01 |
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#define TI_LSR_PARITY_ERROR 0x02 |
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#define TI_LSR_FRAMING_ERROR 0x04 |
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#define TI_LSR_BREAK 0x08 |
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#define TI_LSR_ERROR 0x0F |
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#define TI_LSR_RX_FULL 0x10 |
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#define TI_LSR_TX_EMPTY 0x20 |
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/* Line control */ |
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#define TI_LCR_BREAK 0x40 |
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/* Modem control */ |
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#define TI_MCR_LOOP 0x04 |
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#define TI_MCR_DTR 0x10 |
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#define TI_MCR_RTS 0x20 |
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/* Mask settings */ |
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#define TI_UART_ENABLE_RTS_IN 0x0001 |
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#define TI_UART_DISABLE_RTS 0x0002 |
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#define TI_UART_ENABLE_PARITY_CHECKING 0x0008 |
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#define TI_UART_ENABLE_DSR_OUT 0x0010 |
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#define TI_UART_ENABLE_CTS_OUT 0x0020 |
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#define TI_UART_ENABLE_X_OUT 0x0040 |
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#define TI_UART_ENABLE_XA_OUT 0x0080 |
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#define TI_UART_ENABLE_X_IN 0x0100 |
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#define TI_UART_ENABLE_DTR_IN 0x0800 |
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#define TI_UART_DISABLE_DTR 0x1000 |
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#define TI_UART_ENABLE_MS_INTS 0x2000 |
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#define TI_UART_ENABLE_AUTO_START_DMA 0x4000 |
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/* Parity */ |
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#define TI_UART_NO_PARITY 0x00 |
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#define TI_UART_ODD_PARITY 0x01 |
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#define TI_UART_EVEN_PARITY 0x02 |
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#define TI_UART_MARK_PARITY 0x03 |
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#define TI_UART_SPACE_PARITY 0x04 |
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/* Stop bits */ |
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#define TI_UART_1_STOP_BITS 0x00 |
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#define TI_UART_1_5_STOP_BITS 0x01 |
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#define TI_UART_2_STOP_BITS 0x02 |
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/* Bits per character */ |
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#define TI_UART_5_DATA_BITS 0x00 |
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#define TI_UART_6_DATA_BITS 0x01 |
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#define TI_UART_7_DATA_BITS 0x02 |
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#define TI_UART_8_DATA_BITS 0x03 |
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/* 232/485 modes */ |
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#define TI_UART_232 0x00 |
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#define TI_UART_485_RECEIVER_DISABLED 0x01 |
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#define TI_UART_485_RECEIVER_ENABLED 0x02 |
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/* Pipe transfer mode and timeout */ |
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#define TI_PIPE_MODE_CONTINUOUS 0x01 |
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#define TI_PIPE_MODE_MASK 0x03 |
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#define TI_PIPE_TIMEOUT_MASK 0x7C |
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#define TI_PIPE_TIMEOUT_ENABLE 0x80 |
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/* Config struct */ |
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struct ti_uart_config { |
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__be16 wBaudRate; |
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__be16 wFlags; |
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u8 bDataBits; |
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u8 bParity; |
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u8 bStopBits; |
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char cXon; |
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char cXoff; |
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u8 bUartMode; |
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} __packed; |
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/* Get port status */ |
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struct ti_port_status { |
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u8 bCmdCode; |
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u8 bModuleId; |
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u8 bErrorCode; |
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u8 bMSR; |
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u8 bLSR; |
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} __packed; |
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/* Purge modes */ |
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#define TI_PURGE_OUTPUT 0x00 |
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#define TI_PURGE_INPUT 0x80 |
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/* Read/Write data */ |
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#define TI_RW_DATA_ADDR_SFR 0x10 |
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#define TI_RW_DATA_ADDR_IDATA 0x20 |
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#define TI_RW_DATA_ADDR_XDATA 0x30 |
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#define TI_RW_DATA_ADDR_CODE 0x40 |
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#define TI_RW_DATA_ADDR_GPIO 0x50 |
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#define TI_RW_DATA_ADDR_I2C 0x60 |
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#define TI_RW_DATA_ADDR_FLASH 0x70 |
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#define TI_RW_DATA_ADDR_DSP 0x80 |
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#define TI_RW_DATA_UNSPECIFIED 0x00 |
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#define TI_RW_DATA_BYTE 0x01 |
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#define TI_RW_DATA_WORD 0x02 |
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#define TI_RW_DATA_DOUBLE_WORD 0x04 |
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struct ti_write_data_bytes { |
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u8 bAddrType; |
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u8 bDataType; |
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u8 bDataCounter; |
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__be16 wBaseAddrHi; |
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__be16 wBaseAddrLo; |
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u8 bData[]; |
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} __packed; |
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struct ti_read_data_request { |
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__u8 bAddrType; |
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__u8 bDataType; |
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__u8 bDataCounter; |
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__be16 wBaseAddrHi; |
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__be16 wBaseAddrLo; |
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} __packed; |
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struct ti_read_data_bytes { |
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__u8 bCmdCode; |
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__u8 bModuleId; |
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__u8 bErrorCode; |
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__u8 bData[]; |
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} __packed; |
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/* Interrupt struct */ |
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struct ti_interrupt { |
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__u8 bICode; |
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__u8 bIInfo; |
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} __packed; |
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/* Interrupt codes */ |
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#define TI_CODE_HARDWARE_ERROR 0xFF |
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#define TI_CODE_DATA_ERROR 0x03 |
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#define TI_CODE_MODEM_STATUS 0x04 |
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/* Download firmware max packet size */ |
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#define TI_DOWNLOAD_MAX_PACKET_SIZE 64 |
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/* Firmware image header */ |
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struct ti_firmware_header { |
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__le16 wLength; |
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u8 bCheckSum; |
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} __packed; |
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/* UART addresses */ |
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#define TI_UART1_BASE_ADDR 0xFFA0 /* UART 1 base address */ |
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#define TI_UART2_BASE_ADDR 0xFFB0 /* UART 2 base address */ |
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#define TI_UART_OFFSET_LCR 0x0002 /* UART MCR register offset */ |
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#define TI_UART_OFFSET_MCR 0x0004 /* UART MCR register offset */ |
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#define TI_DRIVER_AUTHOR "Al Borchers <[email protected]>" |
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#define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver" |
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#define TI_FIRMWARE_BUF_SIZE 16284 |
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#define TI_TRANSFER_TIMEOUT 2 |
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#define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ |
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/* read urb states */ |
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#define TI_READ_URB_RUNNING 0 |
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#define TI_READ_URB_STOPPING 1 |
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#define TI_READ_URB_STOPPED 2 |
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#define TI_EXTRA_VID_PID_COUNT 5 |
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struct ti_port { |
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int tp_is_open; |
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u8 tp_msr; |
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u8 tp_shadow_mcr; |
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u8 tp_uart_mode; /* 232 or 485 modes */ |
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unsigned int tp_uart_base_addr; |
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struct ti_device *tp_tdev; |
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struct usb_serial_port *tp_port; |
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spinlock_t tp_lock; |
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int tp_read_urb_state; |
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int tp_write_urb_in_use; |
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}; |
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struct ti_device { |
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struct mutex td_open_close_lock; |
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int td_open_port_count; |
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struct usb_serial *td_serial; |
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int td_is_3410; |
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bool td_rs485_only; |
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}; |
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static int ti_startup(struct usb_serial *serial); |
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static void ti_release(struct usb_serial *serial); |
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static int ti_port_probe(struct usb_serial_port *port); |
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static void ti_port_remove(struct usb_serial_port *port); |
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static int ti_open(struct tty_struct *tty, struct usb_serial_port *port); |
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static void ti_close(struct usb_serial_port *port); |
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static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
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const unsigned char *data, int count); |
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static int ti_write_room(struct tty_struct *tty); |
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static int ti_chars_in_buffer(struct tty_struct *tty); |
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static bool ti_tx_empty(struct usb_serial_port *port); |
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static void ti_throttle(struct tty_struct *tty); |
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static void ti_unthrottle(struct tty_struct *tty); |
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static void ti_set_termios(struct tty_struct *tty, |
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struct usb_serial_port *port, struct ktermios *old_termios); |
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static int ti_tiocmget(struct tty_struct *tty); |
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static int ti_tiocmset(struct tty_struct *tty, |
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unsigned int set, unsigned int clear); |
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static void ti_break(struct tty_struct *tty, int break_state); |
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static void ti_interrupt_callback(struct urb *urb); |
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static void ti_bulk_in_callback(struct urb *urb); |
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static void ti_bulk_out_callback(struct urb *urb); |
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static void ti_recv(struct usb_serial_port *port, unsigned char *data, |
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int length); |
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static void ti_send(struct ti_port *tport); |
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static int ti_set_mcr(struct ti_port *tport, unsigned int mcr); |
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static int ti_get_lsr(struct ti_port *tport, u8 *lsr); |
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static int ti_get_serial_info(struct tty_struct *tty, |
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struct serial_struct *ss); |
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static int ti_set_serial_info(struct tty_struct *tty, |
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struct serial_struct *ss); |
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static void ti_handle_new_msr(struct ti_port *tport, u8 msr); |
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static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty); |
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static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty); |
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static int ti_command_out_sync(struct ti_device *tdev, __u8 command, |
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__u16 moduleid, __u16 value, __u8 *data, int size); |
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static int ti_command_in_sync(struct ti_device *tdev, __u8 command, |
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__u16 moduleid, __u16 value, __u8 *data, int size); |
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static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev, |
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unsigned long addr, u8 mask, u8 byte); |
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static int ti_download_firmware(struct ti_device *tdev); |
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static int closing_wait = TI_DEFAULT_CLOSING_WAIT; |
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static const struct usb_device_id ti_id_table_3410[] = { |
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{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, |
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{ USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
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{ USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
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{ USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, |
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{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STEREO_PLUG_ID) }, |
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{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
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{ USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) }, |
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{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1110_PRODUCT_ID) }, |
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{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1130_PRODUCT_ID) }, |
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{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1131_PRODUCT_ID) }, |
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{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1150_PRODUCT_ID) }, |
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{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1151_PRODUCT_ID) }, |
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{ } /* terminator */ |
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}; |
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static const struct usb_device_id ti_id_table_5052[] = { |
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{ USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, |
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{ } |
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}; |
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static const struct usb_device_id ti_id_table_combined[] = { |
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{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, |
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{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, |
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{ USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
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{ USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
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{ USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, |
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{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
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{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) }, |
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{ USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
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{ USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) }, |
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{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1110_PRODUCT_ID) }, |
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{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1130_PRODUCT_ID) }, |
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{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1131_PRODUCT_ID) }, |
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{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1150_PRODUCT_ID) }, |
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{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1151_PRODUCT_ID) }, |
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{ } /* terminator */ |
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}; |
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static struct usb_serial_driver ti_1port_device = { |
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.driver = { |
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.owner = THIS_MODULE, |
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.name = "ti_usb_3410_5052_1", |
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}, |
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.description = "TI USB 3410 1 port adapter", |
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.id_table = ti_id_table_3410, |
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.num_ports = 1, |
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.num_bulk_out = 1, |
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.attach = ti_startup, |
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.release = ti_release, |
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.port_probe = ti_port_probe, |
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.port_remove = ti_port_remove, |
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.open = ti_open, |
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.close = ti_close, |
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.write = ti_write, |
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.write_room = ti_write_room, |
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.chars_in_buffer = ti_chars_in_buffer, |
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.tx_empty = ti_tx_empty, |
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.throttle = ti_throttle, |
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.unthrottle = ti_unthrottle, |
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.get_serial = ti_get_serial_info, |
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.set_serial = ti_set_serial_info, |
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.set_termios = ti_set_termios, |
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.tiocmget = ti_tiocmget, |
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.tiocmset = ti_tiocmset, |
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.tiocmiwait = usb_serial_generic_tiocmiwait, |
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.get_icount = usb_serial_generic_get_icount, |
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.break_ctl = ti_break, |
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.read_int_callback = ti_interrupt_callback, |
|
.read_bulk_callback = ti_bulk_in_callback, |
|
.write_bulk_callback = ti_bulk_out_callback, |
|
}; |
|
|
|
static struct usb_serial_driver ti_2port_device = { |
|
.driver = { |
|
.owner = THIS_MODULE, |
|
.name = "ti_usb_3410_5052_2", |
|
}, |
|
.description = "TI USB 5052 2 port adapter", |
|
.id_table = ti_id_table_5052, |
|
.num_ports = 2, |
|
.num_bulk_out = 1, |
|
.attach = ti_startup, |
|
.release = ti_release, |
|
.port_probe = ti_port_probe, |
|
.port_remove = ti_port_remove, |
|
.open = ti_open, |
|
.close = ti_close, |
|
.write = ti_write, |
|
.write_room = ti_write_room, |
|
.chars_in_buffer = ti_chars_in_buffer, |
|
.tx_empty = ti_tx_empty, |
|
.throttle = ti_throttle, |
|
.unthrottle = ti_unthrottle, |
|
.get_serial = ti_get_serial_info, |
|
.set_serial = ti_set_serial_info, |
|
.set_termios = ti_set_termios, |
|
.tiocmget = ti_tiocmget, |
|
.tiocmset = ti_tiocmset, |
|
.tiocmiwait = usb_serial_generic_tiocmiwait, |
|
.get_icount = usb_serial_generic_get_icount, |
|
.break_ctl = ti_break, |
|
.read_int_callback = ti_interrupt_callback, |
|
.read_bulk_callback = ti_bulk_in_callback, |
|
.write_bulk_callback = ti_bulk_out_callback, |
|
}; |
|
|
|
static struct usb_serial_driver * const serial_drivers[] = { |
|
&ti_1port_device, &ti_2port_device, NULL |
|
}; |
|
|
|
MODULE_AUTHOR(TI_DRIVER_AUTHOR); |
|
MODULE_DESCRIPTION(TI_DRIVER_DESC); |
|
MODULE_LICENSE("GPL"); |
|
|
|
MODULE_FIRMWARE("ti_3410.fw"); |
|
MODULE_FIRMWARE("ti_5052.fw"); |
|
MODULE_FIRMWARE("mts_cdma.fw"); |
|
MODULE_FIRMWARE("mts_gsm.fw"); |
|
MODULE_FIRMWARE("mts_edge.fw"); |
|
MODULE_FIRMWARE("mts_mt9234mu.fw"); |
|
MODULE_FIRMWARE("mts_mt9234zba.fw"); |
|
MODULE_FIRMWARE("moxa/moxa-1110.fw"); |
|
MODULE_FIRMWARE("moxa/moxa-1130.fw"); |
|
MODULE_FIRMWARE("moxa/moxa-1131.fw"); |
|
MODULE_FIRMWARE("moxa/moxa-1150.fw"); |
|
MODULE_FIRMWARE("moxa/moxa-1151.fw"); |
|
|
|
module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
|
MODULE_PARM_DESC(closing_wait, |
|
"Maximum wait for data to drain in close, in .01 secs, default is 4000"); |
|
|
|
MODULE_DEVICE_TABLE(usb, ti_id_table_combined); |
|
|
|
module_usb_serial_driver(serial_drivers, ti_id_table_combined); |
|
|
|
static int ti_startup(struct usb_serial *serial) |
|
{ |
|
struct ti_device *tdev; |
|
struct usb_device *dev = serial->dev; |
|
struct usb_host_interface *cur_altsetting; |
|
int num_endpoints; |
|
u16 vid, pid; |
|
int status; |
|
|
|
dev_dbg(&dev->dev, |
|
"%s - product 0x%4X, num configurations %d, configuration value %d\n", |
|
__func__, le16_to_cpu(dev->descriptor.idProduct), |
|
dev->descriptor.bNumConfigurations, |
|
dev->actconfig->desc.bConfigurationValue); |
|
|
|
tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); |
|
if (!tdev) |
|
return -ENOMEM; |
|
|
|
mutex_init(&tdev->td_open_close_lock); |
|
tdev->td_serial = serial; |
|
usb_set_serial_data(serial, tdev); |
|
|
|
/* determine device type */ |
|
if (serial->type == &ti_1port_device) |
|
tdev->td_is_3410 = 1; |
|
dev_dbg(&dev->dev, "%s - device type is %s\n", __func__, |
|
tdev->td_is_3410 ? "3410" : "5052"); |
|
|
|
vid = le16_to_cpu(dev->descriptor.idVendor); |
|
pid = le16_to_cpu(dev->descriptor.idProduct); |
|
if (vid == MXU1_VENDOR_ID) { |
|
switch (pid) { |
|
case MXU1_1130_PRODUCT_ID: |
|
case MXU1_1131_PRODUCT_ID: |
|
tdev->td_rs485_only = true; |
|
break; |
|
} |
|
} |
|
|
|
cur_altsetting = serial->interface->cur_altsetting; |
|
num_endpoints = cur_altsetting->desc.bNumEndpoints; |
|
|
|
/* if we have only 1 configuration and 1 endpoint, download firmware */ |
|
if (dev->descriptor.bNumConfigurations == 1 && num_endpoints == 1) { |
|
status = ti_download_firmware(tdev); |
|
|
|
if (status != 0) |
|
goto free_tdev; |
|
|
|
/* 3410 must be reset, 5052 resets itself */ |
|
if (tdev->td_is_3410) { |
|
msleep_interruptible(100); |
|
usb_reset_device(dev); |
|
} |
|
|
|
status = -ENODEV; |
|
goto free_tdev; |
|
} |
|
|
|
/* the second configuration must be set */ |
|
if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) { |
|
status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG); |
|
status = status ? status : -ENODEV; |
|
goto free_tdev; |
|
} |
|
|
|
if (serial->num_bulk_in < serial->num_ports || |
|
serial->num_bulk_out < serial->num_ports) { |
|
dev_err(&serial->interface->dev, "missing endpoints\n"); |
|
status = -ENODEV; |
|
goto free_tdev; |
|
} |
|
|
|
return 0; |
|
|
|
free_tdev: |
|
kfree(tdev); |
|
usb_set_serial_data(serial, NULL); |
|
return status; |
|
} |
|
|
|
|
|
static void ti_release(struct usb_serial *serial) |
|
{ |
|
struct ti_device *tdev = usb_get_serial_data(serial); |
|
|
|
kfree(tdev); |
|
} |
|
|
|
static int ti_port_probe(struct usb_serial_port *port) |
|
{ |
|
struct ti_port *tport; |
|
|
|
tport = kzalloc(sizeof(*tport), GFP_KERNEL); |
|
if (!tport) |
|
return -ENOMEM; |
|
|
|
spin_lock_init(&tport->tp_lock); |
|
if (port == port->serial->port[0]) |
|
tport->tp_uart_base_addr = TI_UART1_BASE_ADDR; |
|
else |
|
tport->tp_uart_base_addr = TI_UART2_BASE_ADDR; |
|
port->port.closing_wait = msecs_to_jiffies(10 * closing_wait); |
|
tport->tp_port = port; |
|
tport->tp_tdev = usb_get_serial_data(port->serial); |
|
|
|
if (tport->tp_tdev->td_rs485_only) |
|
tport->tp_uart_mode = TI_UART_485_RECEIVER_DISABLED; |
|
else |
|
tport->tp_uart_mode = TI_UART_232; |
|
|
|
usb_set_serial_port_data(port, tport); |
|
|
|
port->port.drain_delay = 3; |
|
|
|
return 0; |
|
} |
|
|
|
static void ti_port_remove(struct usb_serial_port *port) |
|
{ |
|
struct ti_port *tport; |
|
|
|
tport = usb_get_serial_port_data(port); |
|
kfree(tport); |
|
} |
|
|
|
static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) |
|
{ |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
struct ti_device *tdev; |
|
struct usb_device *dev; |
|
struct urb *urb; |
|
int port_number; |
|
int status; |
|
u16 open_settings; |
|
|
|
open_settings = (TI_PIPE_MODE_CONTINUOUS | |
|
TI_PIPE_TIMEOUT_ENABLE | |
|
(TI_TRANSFER_TIMEOUT << 2)); |
|
|
|
dev = port->serial->dev; |
|
tdev = tport->tp_tdev; |
|
|
|
/* only one open on any port on a device at a time */ |
|
if (mutex_lock_interruptible(&tdev->td_open_close_lock)) |
|
return -ERESTARTSYS; |
|
|
|
port_number = port->port_number; |
|
|
|
tport->tp_msr = 0; |
|
tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR); |
|
|
|
/* start interrupt urb the first time a port is opened on this device */ |
|
if (tdev->td_open_port_count == 0) { |
|
dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__); |
|
urb = tdev->td_serial->port[0]->interrupt_in_urb; |
|
if (!urb) { |
|
dev_err(&port->dev, "%s - no interrupt urb\n", __func__); |
|
status = -EINVAL; |
|
goto release_lock; |
|
} |
|
urb->context = tdev; |
|
status = usb_submit_urb(urb, GFP_KERNEL); |
|
if (status) { |
|
dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status); |
|
goto release_lock; |
|
} |
|
} |
|
|
|
if (tty) |
|
ti_set_termios(tty, port, &tty->termios); |
|
|
|
status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
|
(__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); |
|
if (status) { |
|
dev_err(&port->dev, "%s - cannot send open command, %d\n", |
|
__func__, status); |
|
goto unlink_int_urb; |
|
} |
|
|
|
status = ti_command_out_sync(tdev, TI_START_PORT, |
|
(__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); |
|
if (status) { |
|
dev_err(&port->dev, "%s - cannot send start command, %d\n", |
|
__func__, status); |
|
goto unlink_int_urb; |
|
} |
|
|
|
status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
|
(__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0); |
|
if (status) { |
|
dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", |
|
__func__, status); |
|
goto unlink_int_urb; |
|
} |
|
status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
|
(__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0); |
|
if (status) { |
|
dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", |
|
__func__, status); |
|
goto unlink_int_urb; |
|
} |
|
|
|
/* reset the data toggle on the bulk endpoints to work around bug in |
|
* host controllers where things get out of sync some times */ |
|
usb_clear_halt(dev, port->write_urb->pipe); |
|
usb_clear_halt(dev, port->read_urb->pipe); |
|
|
|
if (tty) |
|
ti_set_termios(tty, port, &tty->termios); |
|
|
|
status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
|
(__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); |
|
if (status) { |
|
dev_err(&port->dev, "%s - cannot send open command (2), %d\n", |
|
__func__, status); |
|
goto unlink_int_urb; |
|
} |
|
|
|
status = ti_command_out_sync(tdev, TI_START_PORT, |
|
(__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); |
|
if (status) { |
|
dev_err(&port->dev, "%s - cannot send start command (2), %d\n", |
|
__func__, status); |
|
goto unlink_int_urb; |
|
} |
|
|
|
/* start read urb */ |
|
urb = port->read_urb; |
|
if (!urb) { |
|
dev_err(&port->dev, "%s - no read urb\n", __func__); |
|
status = -EINVAL; |
|
goto unlink_int_urb; |
|
} |
|
tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
|
urb->context = tport; |
|
status = usb_submit_urb(urb, GFP_KERNEL); |
|
if (status) { |
|
dev_err(&port->dev, "%s - submit read urb failed, %d\n", |
|
__func__, status); |
|
goto unlink_int_urb; |
|
} |
|
|
|
tport->tp_is_open = 1; |
|
++tdev->td_open_port_count; |
|
|
|
goto release_lock; |
|
|
|
unlink_int_urb: |
|
if (tdev->td_open_port_count == 0) |
|
usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
|
release_lock: |
|
mutex_unlock(&tdev->td_open_close_lock); |
|
return status; |
|
} |
|
|
|
|
|
static void ti_close(struct usb_serial_port *port) |
|
{ |
|
struct ti_device *tdev; |
|
struct ti_port *tport; |
|
int port_number; |
|
int status; |
|
unsigned long flags; |
|
|
|
tdev = usb_get_serial_data(port->serial); |
|
tport = usb_get_serial_port_data(port); |
|
|
|
tport->tp_is_open = 0; |
|
|
|
usb_kill_urb(port->read_urb); |
|
usb_kill_urb(port->write_urb); |
|
tport->tp_write_urb_in_use = 0; |
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
kfifo_reset_out(&port->write_fifo); |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
|
|
port_number = port->port_number; |
|
|
|
status = ti_command_out_sync(tdev, TI_CLOSE_PORT, |
|
(__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); |
|
if (status) |
|
dev_err(&port->dev, |
|
"%s - cannot send close port command, %d\n" |
|
, __func__, status); |
|
|
|
mutex_lock(&tdev->td_open_close_lock); |
|
--tdev->td_open_port_count; |
|
if (tdev->td_open_port_count == 0) { |
|
/* last port is closed, shut down interrupt urb */ |
|
usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
|
} |
|
mutex_unlock(&tdev->td_open_close_lock); |
|
} |
|
|
|
|
|
static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
|
const unsigned char *data, int count) |
|
{ |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
|
|
if (count == 0) { |
|
return 0; |
|
} |
|
|
|
if (!tport->tp_is_open) |
|
return -ENODEV; |
|
|
|
count = kfifo_in_locked(&port->write_fifo, data, count, |
|
&tport->tp_lock); |
|
ti_send(tport); |
|
|
|
return count; |
|
} |
|
|
|
|
|
static int ti_write_room(struct tty_struct *tty) |
|
{ |
|
struct usb_serial_port *port = tty->driver_data; |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
int room = 0; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
room = kfifo_avail(&port->write_fifo); |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
|
|
dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
|
return room; |
|
} |
|
|
|
|
|
static int ti_chars_in_buffer(struct tty_struct *tty) |
|
{ |
|
struct usb_serial_port *port = tty->driver_data; |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
int chars = 0; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
chars = kfifo_len(&port->write_fifo); |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
|
|
dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
|
return chars; |
|
} |
|
|
|
static bool ti_tx_empty(struct usb_serial_port *port) |
|
{ |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
int ret; |
|
u8 lsr; |
|
|
|
ret = ti_get_lsr(tport, &lsr); |
|
if (!ret && !(lsr & TI_LSR_TX_EMPTY)) |
|
return false; |
|
|
|
return true; |
|
} |
|
|
|
static void ti_throttle(struct tty_struct *tty) |
|
{ |
|
struct usb_serial_port *port = tty->driver_data; |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
|
|
if (I_IXOFF(tty) || C_CRTSCTS(tty)) |
|
ti_stop_read(tport, tty); |
|
|
|
} |
|
|
|
|
|
static void ti_unthrottle(struct tty_struct *tty) |
|
{ |
|
struct usb_serial_port *port = tty->driver_data; |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
int status; |
|
|
|
if (I_IXOFF(tty) || C_CRTSCTS(tty)) { |
|
status = ti_restart_read(tport, tty); |
|
if (status) |
|
dev_err(&port->dev, "%s - cannot restart read, %d\n", |
|
__func__, status); |
|
} |
|
} |
|
|
|
static void ti_set_termios(struct tty_struct *tty, |
|
struct usb_serial_port *port, struct ktermios *old_termios) |
|
{ |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
struct ti_uart_config *config; |
|
int baud; |
|
int status; |
|
int port_number = port->port_number; |
|
unsigned int mcr; |
|
u16 wbaudrate; |
|
u16 wflags = 0; |
|
|
|
config = kmalloc(sizeof(*config), GFP_KERNEL); |
|
if (!config) |
|
return; |
|
|
|
/* these flags must be set */ |
|
wflags |= TI_UART_ENABLE_MS_INTS; |
|
wflags |= TI_UART_ENABLE_AUTO_START_DMA; |
|
config->bUartMode = tport->tp_uart_mode; |
|
|
|
switch (C_CSIZE(tty)) { |
|
case CS5: |
|
config->bDataBits = TI_UART_5_DATA_BITS; |
|
break; |
|
case CS6: |
|
config->bDataBits = TI_UART_6_DATA_BITS; |
|
break; |
|
case CS7: |
|
config->bDataBits = TI_UART_7_DATA_BITS; |
|
break; |
|
default: |
|
case CS8: |
|
config->bDataBits = TI_UART_8_DATA_BITS; |
|
break; |
|
} |
|
|
|
/* CMSPAR isn't supported by this driver */ |
|
tty->termios.c_cflag &= ~CMSPAR; |
|
|
|
if (C_PARENB(tty)) { |
|
if (C_PARODD(tty)) { |
|
wflags |= TI_UART_ENABLE_PARITY_CHECKING; |
|
config->bParity = TI_UART_ODD_PARITY; |
|
} else { |
|
wflags |= TI_UART_ENABLE_PARITY_CHECKING; |
|
config->bParity = TI_UART_EVEN_PARITY; |
|
} |
|
} else { |
|
wflags &= ~TI_UART_ENABLE_PARITY_CHECKING; |
|
config->bParity = TI_UART_NO_PARITY; |
|
} |
|
|
|
if (C_CSTOPB(tty)) |
|
config->bStopBits = TI_UART_2_STOP_BITS; |
|
else |
|
config->bStopBits = TI_UART_1_STOP_BITS; |
|
|
|
if (C_CRTSCTS(tty)) { |
|
/* RTS flow control must be off to drop RTS for baud rate B0 */ |
|
if ((C_BAUD(tty)) != B0) |
|
wflags |= TI_UART_ENABLE_RTS_IN; |
|
wflags |= TI_UART_ENABLE_CTS_OUT; |
|
} else { |
|
ti_restart_read(tport, tty); |
|
} |
|
|
|
if (I_IXOFF(tty) || I_IXON(tty)) { |
|
config->cXon = START_CHAR(tty); |
|
config->cXoff = STOP_CHAR(tty); |
|
|
|
if (I_IXOFF(tty)) |
|
wflags |= TI_UART_ENABLE_X_IN; |
|
else |
|
ti_restart_read(tport, tty); |
|
|
|
if (I_IXON(tty)) |
|
wflags |= TI_UART_ENABLE_X_OUT; |
|
} |
|
|
|
baud = tty_get_baud_rate(tty); |
|
if (!baud) |
|
baud = 9600; |
|
if (tport->tp_tdev->td_is_3410) |
|
wbaudrate = (923077 + baud/2) / baud; |
|
else |
|
wbaudrate = (461538 + baud/2) / baud; |
|
|
|
/* FIXME: Should calculate resulting baud here and report it back */ |
|
if ((C_BAUD(tty)) != B0) |
|
tty_encode_baud_rate(tty, baud, baud); |
|
|
|
dev_dbg(&port->dev, |
|
"%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d\n", |
|
__func__, baud, wbaudrate, wflags, |
|
config->bDataBits, config->bParity, config->bStopBits, |
|
config->cXon, config->cXoff, config->bUartMode); |
|
|
|
config->wBaudRate = cpu_to_be16(wbaudrate); |
|
config->wFlags = cpu_to_be16(wflags); |
|
|
|
status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG, |
|
(__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config, |
|
sizeof(*config)); |
|
if (status) |
|
dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", |
|
__func__, port_number, status); |
|
|
|
/* SET_CONFIG asserts RTS and DTR, reset them correctly */ |
|
mcr = tport->tp_shadow_mcr; |
|
/* if baud rate is B0, clear RTS and DTR */ |
|
if (C_BAUD(tty) == B0) |
|
mcr &= ~(TI_MCR_DTR | TI_MCR_RTS); |
|
status = ti_set_mcr(tport, mcr); |
|
if (status) |
|
dev_err(&port->dev, |
|
"%s - cannot set modem control on port %d, %d\n", |
|
__func__, port_number, status); |
|
|
|
kfree(config); |
|
} |
|
|
|
|
|
static int ti_tiocmget(struct tty_struct *tty) |
|
{ |
|
struct usb_serial_port *port = tty->driver_data; |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
unsigned int result; |
|
unsigned int msr; |
|
unsigned int mcr; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
msr = tport->tp_msr; |
|
mcr = tport->tp_shadow_mcr; |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
|
|
result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0) |
|
| ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0) |
|
| ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0) |
|
| ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0) |
|
| ((msr & TI_MSR_CD) ? TIOCM_CAR : 0) |
|
| ((msr & TI_MSR_RI) ? TIOCM_RI : 0) |
|
| ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0); |
|
|
|
dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result); |
|
|
|
return result; |
|
} |
|
|
|
|
|
static int ti_tiocmset(struct tty_struct *tty, |
|
unsigned int set, unsigned int clear) |
|
{ |
|
struct usb_serial_port *port = tty->driver_data; |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
unsigned int mcr; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
mcr = tport->tp_shadow_mcr; |
|
|
|
if (set & TIOCM_RTS) |
|
mcr |= TI_MCR_RTS; |
|
if (set & TIOCM_DTR) |
|
mcr |= TI_MCR_DTR; |
|
if (set & TIOCM_LOOP) |
|
mcr |= TI_MCR_LOOP; |
|
|
|
if (clear & TIOCM_RTS) |
|
mcr &= ~TI_MCR_RTS; |
|
if (clear & TIOCM_DTR) |
|
mcr &= ~TI_MCR_DTR; |
|
if (clear & TIOCM_LOOP) |
|
mcr &= ~TI_MCR_LOOP; |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
|
|
return ti_set_mcr(tport, mcr); |
|
} |
|
|
|
|
|
static void ti_break(struct tty_struct *tty, int break_state) |
|
{ |
|
struct usb_serial_port *port = tty->driver_data; |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
int status; |
|
|
|
dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state); |
|
|
|
status = ti_write_byte(port, tport->tp_tdev, |
|
tport->tp_uart_base_addr + TI_UART_OFFSET_LCR, |
|
TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0); |
|
|
|
if (status) |
|
dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status); |
|
} |
|
|
|
static int ti_get_port_from_code(unsigned char code) |
|
{ |
|
return (code >> 6) & 0x01; |
|
} |
|
|
|
static int ti_get_func_from_code(unsigned char code) |
|
{ |
|
return code & 0x0f; |
|
} |
|
|
|
static void ti_interrupt_callback(struct urb *urb) |
|
{ |
|
struct ti_device *tdev = urb->context; |
|
struct usb_serial_port *port; |
|
struct usb_serial *serial = tdev->td_serial; |
|
struct ti_port *tport; |
|
struct device *dev = &urb->dev->dev; |
|
unsigned char *data = urb->transfer_buffer; |
|
int length = urb->actual_length; |
|
int port_number; |
|
int function; |
|
int status = urb->status; |
|
int retval; |
|
u8 msr; |
|
|
|
switch (status) { |
|
case 0: |
|
break; |
|
case -ECONNRESET: |
|
case -ENOENT: |
|
case -ESHUTDOWN: |
|
dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
|
return; |
|
default: |
|
dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status); |
|
goto exit; |
|
} |
|
|
|
if (length != 2) { |
|
dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length); |
|
goto exit; |
|
} |
|
|
|
if (data[0] == TI_CODE_HARDWARE_ERROR) { |
|
dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]); |
|
goto exit; |
|
} |
|
|
|
port_number = ti_get_port_from_code(data[0]); |
|
function = ti_get_func_from_code(data[0]); |
|
|
|
dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n", |
|
__func__, port_number, function, data[1]); |
|
|
|
if (port_number >= serial->num_ports) { |
|
dev_err(dev, "%s - bad port number, %d\n", |
|
__func__, port_number); |
|
goto exit; |
|
} |
|
|
|
port = serial->port[port_number]; |
|
|
|
tport = usb_get_serial_port_data(port); |
|
if (!tport) |
|
goto exit; |
|
|
|
switch (function) { |
|
case TI_CODE_DATA_ERROR: |
|
dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n", |
|
__func__, port_number, data[1]); |
|
break; |
|
|
|
case TI_CODE_MODEM_STATUS: |
|
msr = data[1]; |
|
dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr); |
|
ti_handle_new_msr(tport, msr); |
|
break; |
|
|
|
default: |
|
dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", |
|
__func__, data[1]); |
|
break; |
|
} |
|
|
|
exit: |
|
retval = usb_submit_urb(urb, GFP_ATOMIC); |
|
if (retval) |
|
dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", |
|
__func__, retval); |
|
} |
|
|
|
|
|
static void ti_bulk_in_callback(struct urb *urb) |
|
{ |
|
struct ti_port *tport = urb->context; |
|
struct usb_serial_port *port = tport->tp_port; |
|
struct device *dev = &urb->dev->dev; |
|
int status = urb->status; |
|
unsigned long flags; |
|
int retval = 0; |
|
|
|
switch (status) { |
|
case 0: |
|
break; |
|
case -ECONNRESET: |
|
case -ENOENT: |
|
case -ESHUTDOWN: |
|
dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
|
return; |
|
default: |
|
dev_err(dev, "%s - nonzero urb status, %d\n", |
|
__func__, status); |
|
} |
|
|
|
if (status == -EPIPE) |
|
goto exit; |
|
|
|
if (status) { |
|
dev_err(dev, "%s - stopping read!\n", __func__); |
|
return; |
|
} |
|
|
|
if (urb->actual_length) { |
|
usb_serial_debug_data(dev, __func__, urb->actual_length, |
|
urb->transfer_buffer); |
|
|
|
if (!tport->tp_is_open) |
|
dev_dbg(dev, "%s - port closed, dropping data\n", |
|
__func__); |
|
else |
|
ti_recv(port, urb->transfer_buffer, urb->actual_length); |
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
port->icount.rx += urb->actual_length; |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
} |
|
|
|
exit: |
|
/* continue to read unless stopping */ |
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
|
retval = usb_submit_urb(urb, GFP_ATOMIC); |
|
else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) |
|
tport->tp_read_urb_state = TI_READ_URB_STOPPED; |
|
|
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
if (retval) |
|
dev_err(dev, "%s - resubmit read urb failed, %d\n", |
|
__func__, retval); |
|
} |
|
|
|
|
|
static void ti_bulk_out_callback(struct urb *urb) |
|
{ |
|
struct ti_port *tport = urb->context; |
|
struct usb_serial_port *port = tport->tp_port; |
|
int status = urb->status; |
|
|
|
tport->tp_write_urb_in_use = 0; |
|
|
|
switch (status) { |
|
case 0: |
|
break; |
|
case -ECONNRESET: |
|
case -ENOENT: |
|
case -ESHUTDOWN: |
|
dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status); |
|
return; |
|
default: |
|
dev_err_console(port, "%s - nonzero urb status, %d\n", |
|
__func__, status); |
|
} |
|
|
|
/* send any buffered data */ |
|
ti_send(tport); |
|
} |
|
|
|
|
|
static void ti_recv(struct usb_serial_port *port, unsigned char *data, |
|
int length) |
|
{ |
|
int cnt; |
|
|
|
do { |
|
cnt = tty_insert_flip_string(&port->port, data, length); |
|
if (cnt < length) { |
|
dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
|
__func__, length - cnt); |
|
if (cnt == 0) |
|
break; |
|
} |
|
tty_flip_buffer_push(&port->port); |
|
data += cnt; |
|
length -= cnt; |
|
} while (length > 0); |
|
} |
|
|
|
|
|
static void ti_send(struct ti_port *tport) |
|
{ |
|
int count, result; |
|
struct usb_serial_port *port = tport->tp_port; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
|
|
if (tport->tp_write_urb_in_use) |
|
goto unlock; |
|
|
|
count = kfifo_out(&port->write_fifo, |
|
port->write_urb->transfer_buffer, |
|
port->bulk_out_size); |
|
|
|
if (count == 0) |
|
goto unlock; |
|
|
|
tport->tp_write_urb_in_use = 1; |
|
|
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
|
|
usb_serial_debug_data(&port->dev, __func__, count, |
|
port->write_urb->transfer_buffer); |
|
|
|
usb_fill_bulk_urb(port->write_urb, port->serial->dev, |
|
usb_sndbulkpipe(port->serial->dev, |
|
port->bulk_out_endpointAddress), |
|
port->write_urb->transfer_buffer, count, |
|
ti_bulk_out_callback, tport); |
|
|
|
result = usb_submit_urb(port->write_urb, GFP_ATOMIC); |
|
if (result) { |
|
dev_err_console(port, "%s - submit write urb failed, %d\n", |
|
__func__, result); |
|
tport->tp_write_urb_in_use = 0; |
|
/* TODO: reschedule ti_send */ |
|
} else { |
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
port->icount.tx += count; |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
} |
|
|
|
/* more room in the buffer for new writes, wakeup */ |
|
tty_port_tty_wakeup(&port->port); |
|
|
|
return; |
|
unlock: |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
return; |
|
} |
|
|
|
|
|
static int ti_set_mcr(struct ti_port *tport, unsigned int mcr) |
|
{ |
|
unsigned long flags; |
|
int status; |
|
|
|
status = ti_write_byte(tport->tp_port, tport->tp_tdev, |
|
tport->tp_uart_base_addr + TI_UART_OFFSET_MCR, |
|
TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr); |
|
|
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
if (!status) |
|
tport->tp_shadow_mcr = mcr; |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
|
|
return status; |
|
} |
|
|
|
|
|
static int ti_get_lsr(struct ti_port *tport, u8 *lsr) |
|
{ |
|
int size, status; |
|
struct ti_device *tdev = tport->tp_tdev; |
|
struct usb_serial_port *port = tport->tp_port; |
|
int port_number = port->port_number; |
|
struct ti_port_status *data; |
|
|
|
size = sizeof(struct ti_port_status); |
|
data = kmalloc(size, GFP_KERNEL); |
|
if (!data) |
|
return -ENOMEM; |
|
|
|
status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, |
|
(__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); |
|
if (status) { |
|
dev_err(&port->dev, |
|
"%s - get port status command failed, %d\n", |
|
__func__, status); |
|
goto free_data; |
|
} |
|
|
|
dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR); |
|
|
|
*lsr = data->bLSR; |
|
|
|
free_data: |
|
kfree(data); |
|
return status; |
|
} |
|
|
|
|
|
static int ti_get_serial_info(struct tty_struct *tty, |
|
struct serial_struct *ss) |
|
{ |
|
struct usb_serial_port *port = tty->driver_data; |
|
struct ti_port *tport = usb_get_serial_port_data(port); |
|
unsigned cwait; |
|
|
|
cwait = port->port.closing_wait; |
|
if (cwait != ASYNC_CLOSING_WAIT_NONE) |
|
cwait = jiffies_to_msecs(cwait) / 10; |
|
|
|
ss->type = PORT_16550A; |
|
ss->line = port->minor; |
|
ss->port = port->port_number; |
|
ss->xmit_fifo_size = kfifo_size(&port->write_fifo); |
|
ss->baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; |
|
ss->closing_wait = cwait; |
|
return 0; |
|
} |
|
|
|
|
|
static int ti_set_serial_info(struct tty_struct *tty, |
|
struct serial_struct *ss) |
|
{ |
|
struct usb_serial_port *port = tty->driver_data; |
|
struct tty_port *tport = &port->port; |
|
unsigned cwait; |
|
|
|
cwait = ss->closing_wait; |
|
if (cwait != ASYNC_CLOSING_WAIT_NONE) |
|
cwait = msecs_to_jiffies(10 * ss->closing_wait); |
|
|
|
if (!capable(CAP_SYS_ADMIN)) { |
|
if (cwait != tport->closing_wait) |
|
return -EPERM; |
|
} |
|
|
|
tport->closing_wait = cwait; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static void ti_handle_new_msr(struct ti_port *tport, u8 msr) |
|
{ |
|
struct async_icount *icount; |
|
struct tty_struct *tty; |
|
unsigned long flags; |
|
|
|
dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr); |
|
|
|
if (msr & TI_MSR_DELTA_MASK) { |
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
icount = &tport->tp_port->icount; |
|
if (msr & TI_MSR_DELTA_CTS) |
|
icount->cts++; |
|
if (msr & TI_MSR_DELTA_DSR) |
|
icount->dsr++; |
|
if (msr & TI_MSR_DELTA_CD) |
|
icount->dcd++; |
|
if (msr & TI_MSR_DELTA_RI) |
|
icount->rng++; |
|
wake_up_interruptible(&tport->tp_port->port.delta_msr_wait); |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
} |
|
|
|
tport->tp_msr = msr & TI_MSR_MASK; |
|
|
|
/* handle CTS flow control */ |
|
tty = tty_port_tty_get(&tport->tp_port->port); |
|
if (tty && C_CRTSCTS(tty)) { |
|
if (msr & TI_MSR_CTS) |
|
tty_wakeup(tty); |
|
} |
|
tty_kref_put(tty); |
|
} |
|
|
|
|
|
static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty) |
|
{ |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
|
|
if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
|
tport->tp_read_urb_state = TI_READ_URB_STOPPING; |
|
|
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
} |
|
|
|
|
|
static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) |
|
{ |
|
struct urb *urb; |
|
int status = 0; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&tport->tp_lock, flags); |
|
|
|
if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) { |
|
tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
|
urb = tport->tp_port->read_urb; |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
urb->context = tport; |
|
status = usb_submit_urb(urb, GFP_KERNEL); |
|
} else { |
|
tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
|
spin_unlock_irqrestore(&tport->tp_lock, flags); |
|
} |
|
|
|
return status; |
|
} |
|
|
|
|
|
static int ti_command_out_sync(struct ti_device *tdev, __u8 command, |
|
__u16 moduleid, __u16 value, __u8 *data, int size) |
|
{ |
|
int status; |
|
|
|
status = usb_control_msg(tdev->td_serial->dev, |
|
usb_sndctrlpipe(tdev->td_serial->dev, 0), command, |
|
(USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), |
|
value, moduleid, data, size, 1000); |
|
|
|
if (status < 0) |
|
return status; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static int ti_command_in_sync(struct ti_device *tdev, __u8 command, |
|
__u16 moduleid, __u16 value, __u8 *data, int size) |
|
{ |
|
int status; |
|
|
|
status = usb_control_msg(tdev->td_serial->dev, |
|
usb_rcvctrlpipe(tdev->td_serial->dev, 0), command, |
|
(USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), |
|
value, moduleid, data, size, 1000); |
|
|
|
if (status == size) |
|
status = 0; |
|
else if (status >= 0) |
|
status = -ECOMM; |
|
|
|
return status; |
|
} |
|
|
|
|
|
static int ti_write_byte(struct usb_serial_port *port, |
|
struct ti_device *tdev, unsigned long addr, |
|
u8 mask, u8 byte) |
|
{ |
|
int status; |
|
unsigned int size; |
|
struct ti_write_data_bytes *data; |
|
|
|
dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__, |
|
addr, mask, byte); |
|
|
|
size = sizeof(struct ti_write_data_bytes) + 2; |
|
data = kmalloc(size, GFP_KERNEL); |
|
if (!data) |
|
return -ENOMEM; |
|
|
|
data->bAddrType = TI_RW_DATA_ADDR_XDATA; |
|
data->bDataType = TI_RW_DATA_BYTE; |
|
data->bDataCounter = 1; |
|
data->wBaseAddrHi = cpu_to_be16(addr>>16); |
|
data->wBaseAddrLo = cpu_to_be16(addr); |
|
data->bData[0] = mask; |
|
data->bData[1] = byte; |
|
|
|
status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0, |
|
(__u8 *)data, size); |
|
|
|
if (status < 0) |
|
dev_err(&port->dev, "%s - failed, %d\n", __func__, status); |
|
|
|
kfree(data); |
|
|
|
return status; |
|
} |
|
|
|
static int ti_do_download(struct usb_device *dev, int pipe, |
|
u8 *buffer, int size) |
|
{ |
|
int pos; |
|
u8 cs = 0; |
|
int done; |
|
struct ti_firmware_header *header; |
|
int status = 0; |
|
int len; |
|
|
|
for (pos = sizeof(struct ti_firmware_header); pos < size; pos++) |
|
cs = (u8)(cs + buffer[pos]); |
|
|
|
header = (struct ti_firmware_header *)buffer; |
|
header->wLength = cpu_to_le16(size - sizeof(*header)); |
|
header->bCheckSum = cs; |
|
|
|
dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__); |
|
for (pos = 0; pos < size; pos += done) { |
|
len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); |
|
status = usb_bulk_msg(dev, pipe, buffer + pos, len, |
|
&done, 1000); |
|
if (status) |
|
break; |
|
} |
|
return status; |
|
} |
|
|
|
static int ti_download_firmware(struct ti_device *tdev) |
|
{ |
|
int status; |
|
int buffer_size; |
|
u8 *buffer; |
|
struct usb_device *dev = tdev->td_serial->dev; |
|
unsigned int pipe = usb_sndbulkpipe(dev, |
|
tdev->td_serial->port[0]->bulk_out_endpointAddress); |
|
const struct firmware *fw_p; |
|
char buf[32]; |
|
|
|
if (le16_to_cpu(dev->descriptor.idVendor) == MXU1_VENDOR_ID) { |
|
snprintf(buf, |
|
sizeof(buf), |
|
"moxa/moxa-%04x.fw", |
|
le16_to_cpu(dev->descriptor.idProduct)); |
|
|
|
status = request_firmware(&fw_p, buf, &dev->dev); |
|
goto check_firmware; |
|
} |
|
|
|
/* try ID specific firmware first, then try generic firmware */ |
|
sprintf(buf, "ti_usb-v%04x-p%04x.fw", |
|
le16_to_cpu(dev->descriptor.idVendor), |
|
le16_to_cpu(dev->descriptor.idProduct)); |
|
status = request_firmware(&fw_p, buf, &dev->dev); |
|
|
|
if (status != 0) { |
|
buf[0] = '\0'; |
|
if (le16_to_cpu(dev->descriptor.idVendor) == MTS_VENDOR_ID) { |
|
switch (le16_to_cpu(dev->descriptor.idProduct)) { |
|
case MTS_CDMA_PRODUCT_ID: |
|
strcpy(buf, "mts_cdma.fw"); |
|
break; |
|
case MTS_GSM_PRODUCT_ID: |
|
strcpy(buf, "mts_gsm.fw"); |
|
break; |
|
case MTS_EDGE_PRODUCT_ID: |
|
strcpy(buf, "mts_edge.fw"); |
|
break; |
|
case MTS_MT9234MU_PRODUCT_ID: |
|
strcpy(buf, "mts_mt9234mu.fw"); |
|
break; |
|
case MTS_MT9234ZBA_PRODUCT_ID: |
|
strcpy(buf, "mts_mt9234zba.fw"); |
|
break; |
|
case MTS_MT9234ZBAOLD_PRODUCT_ID: |
|
strcpy(buf, "mts_mt9234zba.fw"); |
|
break; } |
|
} |
|
if (buf[0] == '\0') { |
|
if (tdev->td_is_3410) |
|
strcpy(buf, "ti_3410.fw"); |
|
else |
|
strcpy(buf, "ti_5052.fw"); |
|
} |
|
status = request_firmware(&fw_p, buf, &dev->dev); |
|
} |
|
|
|
check_firmware: |
|
if (status) { |
|
dev_err(&dev->dev, "%s - firmware not found\n", __func__); |
|
return -ENOENT; |
|
} |
|
if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { |
|
dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size); |
|
release_firmware(fw_p); |
|
return -ENOENT; |
|
} |
|
|
|
buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); |
|
buffer = kmalloc(buffer_size, GFP_KERNEL); |
|
if (buffer) { |
|
memcpy(buffer, fw_p->data, fw_p->size); |
|
memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); |
|
status = ti_do_download(dev, pipe, buffer, fw_p->size); |
|
kfree(buffer); |
|
} else { |
|
status = -ENOMEM; |
|
} |
|
release_firmware(fw_p); |
|
if (status) { |
|
dev_err(&dev->dev, "%s - error downloading firmware, %d\n", |
|
__func__, status); |
|
return status; |
|
} |
|
|
|
dev_dbg(&dev->dev, "%s - download successful\n", __func__); |
|
|
|
return 0; |
|
}
|
|
|