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https://gitee.com/open-loongarch/linux-5.10.git
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maoxiaochuan
3904801f2b
1.Fix spidev delay-usec cannot work 2.Fix spi transfer failed when use gpio cs 3.Support EC200N-CN 4G model 4.Fix alert/critical temperature to 75/105 for 2k300 5.Enable ch341,pl2303 for 2k300_defconfig
154 lines
3.6 KiB
C
154 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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*
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* Includes for ch341.c
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*
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*/
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#ifndef _CH341_H
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#define _CH341_H
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/*
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* Baud rate and default timeout
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*/
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#define DEFAULT_BAUD_RATE 9600
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#define DEFAULT_TIMEOUT 2000
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/*
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* CMSPAR, some architectures can't have space and mark parity.
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*/
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#ifndef CMSPAR
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#define CMSPAR 0
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#endif
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/*
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* Major and minor numbers.
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*/
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#define CH341_TTY_MAJOR 169
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#define CH341_TTY_MINORS 256
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/*
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* Requests.
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*/
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#define USB_RT_CH341 (USB_TYPE_CLASS | USB_RECIP_INTERFACE)
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#define CMD_R 0x95
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#define CMD_W 0x9A
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#define CMD_C1 0xA1
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#define CMD_C2 0xA4
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#define CMD_C3 0x5F
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#define CH341_CTO_O 0x10
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#define CH341_CTO_D 0x20
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#define CH341_CTO_R 0x40
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#define CH341_CTI_C 0x01
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#define CH341_CTI_DS 0x02
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#define CH341_CTRL_RI 0x04
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#define CH341_CTI_DC 0x08
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#define CH341_CTI_ST 0x0f
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#define CH341_CTT_M BIT(3)
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#define CH341_CTT_F (BIT(2) | BIT(6))
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#define CH341_CTT_P BIT(2)
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#define CH341_CTT_O BIT(1)
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#define CH341_L_ER 0x80
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#define CH341_L_ET 0x40
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#define CH341_L_PS 0x38
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#define CH341_L_PM 0x28
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#define CH341_L_PE 0x18
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#define CH341_L_PO 0x08
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#define CH341_L_SB 0x04
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#define CH341_L_D8 0x03
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#define CH341_L_D7 0x02
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#define CH341_L_D6 0x01
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#define CH341_L_D5 0x00
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#define CH341_RB 0x05
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#define CH341_RL 0x18
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#define CH341_NB 0x01
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#define CH341_NW 2
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#define CH341_NR 4
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struct ch341_wb {
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unsigned char *buf;
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dma_addr_t dmah;
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int len;
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int use;
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struct urb *urb;
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struct ch341 *instance;
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};
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struct ch341_rb {
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int size;
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unsigned char *base;
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dma_addr_t dma;
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int index;
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struct ch341 *instance;
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};
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struct usb_ch341_line_coding {
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__le32 dwDTERate;
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__u8 bCharFormat;
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#define USB_CH341_1_STOP_BITS 0
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#define USB_CH341_1_5_STOP_BITS 1
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#define USB_CH341_2_STOP_BITS 2
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__u8 bParityType;
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#define USB_CH341_NO_PARITY 0
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#define USB_CH341_ODD_PARITY 1
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#define USB_CH341_EVEN_PARITY 2
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#define USB_CH341_MARK_PARITY 3
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#define USB_CH341_SPACE_PARITY 4
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__u8 bDataBits;
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} __attribute__((packed));
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struct ch341 {
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struct usb_device *dev; /* the corresponding usb device */
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struct usb_interface *data; /* data interface */
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struct tty_port port; /* our tty port data */
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struct urb *ctrlurb; /* urbs */
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u8 *ctrl_buffer; /* buffers of urbs */
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dma_addr_t ctrl_dma; /* dma handles of buffers */
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struct ch341_wb wb[CH341_NW];
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unsigned long read_urbs_free;
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struct urb *read_urbs[CH341_NR];
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struct ch341_rb read_buffers[CH341_NR];
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int rx_buflimit;
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int rx_endpoint;
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spinlock_t read_lock;
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int write_used; /* number of non-empty write buffers */
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int transmitting;
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spinlock_t write_lock;
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struct mutex mutex;
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bool disconnected;
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struct usb_ch341_line_coding line; /* baudrate, data format */
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struct work_struct work; /* used for line discipline waking up */
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unsigned int ctrlin; /* input lines (CTS, DSR, DCD, RI) */
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unsigned int ctrlout; /* output control lines (DTR, RTS) */
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struct async_icount iocount; /* counters for control line changes */
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struct async_icount oldcount; /* for comparison of counter */
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wait_queue_head_t wioctl; /* for ioctl */
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unsigned int writesize; /* max packet size */
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unsigned int readsize, ctrlsize; /* buffer sizes for freeing */
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unsigned int minor; /* ch341 minor number */
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unsigned char clocal; /* termios CLOCAL */
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unsigned int susp_count; /* number of suspended interfaces */
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u8 bInterval;
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struct usb_anchor delayed; /* used for a device about to be woken */
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unsigned long quirks;
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bool hardflow;
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};
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/* constants describing various quirks and errors */
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#define NO_UNION_NORMAL BIT(0)
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#define SINGLE_RX_URB BIT(1)
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#define NO_CAP_LINE BIT(2)
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#define NO_DATA_INTERFACE BIT(4)
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#define IGNORE_DEVICE BIT(5)
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#define QUIRK_CONTROL_LINE_STATE BIT(6)
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#define CLEAR_HALT_CONDITIONS BIT(7)
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#endif
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