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/* SPDX-License-Identifier: GPL-2.0 */
/***************************************************************************
* copyright : (C) 2004 by Frank Mori Hess *
***************************************************************************/
#include <linux/kernel.h>
#include <linux/mutex.h>
#include <linux/completion.h>
#include <linux/usb.h>
#include <linux/timer.h>
#include <linux/compiler_attributes.h>
#include "gpibP.h"
#include "tms9914.h"
enum usb_vendor_ids {
USB_VENDOR_ID_AGILENT = 0x0957
};
enum usb_device_ids {
USB_DEVICE_ID_AGILENT_82357A = 0x0107,
USB_DEVICE_ID_AGILENT_82357A_PREINIT = 0x0007, // device id before firmware is loaded
USB_DEVICE_ID_AGILENT_82357B = 0x0718, // device id before firmware is loaded
USB_DEVICE_ID_AGILENT_82357B_PREINIT = 0x0518, // device id before firmware is loaded
};
enum endpoint_addresses {
AGILENT_82357_CONTROL_ENDPOINT = 0x0,
AGILENT_82357_BULK_IN_ENDPOINT = 0x2,
AGILENT_82357A_BULK_OUT_ENDPOINT = 0x4,
AGILENT_82357A_INTERRUPT_IN_ENDPOINT = 0x6,
AGILENT_82357B_BULK_OUT_ENDPOINT = 0x6,
AGILENT_82357B_INTERRUPT_IN_ENDPOINT = 0x8,
};
enum bulk_commands {
DATA_PIPE_CMD_WRITE = 0x1,
DATA_PIPE_CMD_READ = 0x3,
DATA_PIPE_CMD_WR_REGS = 0x4,
DATA_PIPE_CMD_RD_REGS = 0x5
};
enum agilent_82357a_read_flags {
ARF_END_ON_EOI = 0x1,
ARF_NO_ADDRESS = 0x2,
ARF_END_ON_EOS_CHAR = 0x4,
ARF_SPOLL = 0x8
};
enum agilent_82357a_trailing_read_flags {
ATRF_EOI = 0x1,
ATRF_ATN = 0x2,
ATRF_IFC = 0x4,
ATRF_EOS = 0x8,
ATRF_ABORT = 0x10,
ATRF_COUNT = 0x20,
ATRF_DEAD_BUS = 0x40,
ATRF_UNADDRESSED = 0x80
};
enum agilent_82357a_write_flags {
AWF_SEND_EOI = 0x1,
AWF_NO_FAST_TALKER_FIRST_BYTE = 0x2,
AWF_NO_FAST_TALKER = 0x4,
AWF_NO_ADDRESS = 0x8,
AWF_ATN = 0x10,
AWF_SEPARATE_HEADER = 0x80
};
enum agilent_82357a_interrupt_flag_bit_numbers {
AIF_SRQ_BN = 0,
AIF_WRITE_COMPLETE_BN = 1,
AIF_READ_COMPLETE_BN = 2,
};
enum agilent_82357_error_codes {
UGP_SUCCESS = 0,
UGP_ERR_INVALID_CMD = 1,
UGP_ERR_INVALID_PARAM = 2,
UGP_ERR_INVALID_REG = 3,
UGP_ERR_GPIB_READ = 4,
UGP_ERR_GPIB_WRITE = 5,
UGP_ERR_FLUSHING = 6,
UGP_ERR_FLUSHING_ALREADY = 7,
UGP_ERR_UNSUPPORTED = 8,
UGP_ERR_OTHER = 9
};
enum agilent_82357_control_values {
XFER_ABORT = 0xa0,
XFER_STATUS = 0xb0,
};
enum xfer_status_bits {
XS_COMPLETED = 0x1,
XS_READ = 0x2,
};
enum xfer_status_completion_bits {
XSC_EOI = 0x1,
XSC_ATN = 0x2,
XSC_IFC = 0x4,
XSC_EOS = 0x8,
XSC_ABORT = 0x10,
XSC_COUNT = 0x20,
XSC_DEAD_BUS = 0x40,
XSC_BUS_NOT_ADDRESSED = 0x80
};
enum xfer_abort_type {
XA_FLUSH = 0x1
};
#define STATUS_DATA_LEN 8
#define INTERRUPT_BUF_LEN 8
struct agilent_82357a_urb_ctx {
struct completion complete;
unsigned timed_out : 1;
};
// struct which defines local data for each 82357 device
struct agilent_82357a_priv {
struct usb_interface *bus_interface;
unsigned short eos_char;
unsigned short eos_mode;
unsigned short hw_control_bits;
unsigned long interrupt_flags;
struct urb *bulk_urb;
struct urb *interrupt_urb;
u8 *interrupt_buffer;
struct mutex bulk_transfer_lock; // bulk transfer lock
struct mutex bulk_alloc_lock; // bulk transfer allocation lock
struct mutex interrupt_alloc_lock; // interrupt allocation lock
struct mutex control_alloc_lock; // control message allocation lock
struct timer_list bulk_timer;
struct agilent_82357a_urb_ctx context;
unsigned int bulk_out_endpoint;
unsigned int interrupt_in_endpoint;
unsigned is_cic : 1;
unsigned ren_state : 1;
};
struct agilent_82357a_register_pairlet {
short address;
unsigned short value;
};
enum firmware_registers {
HW_CONTROL = 0xa,
LED_CONTROL = 0xb,
RESET_TO_POWERUP = 0xc,
PROTOCOL_CONTROL = 0xd,
FAST_TALKER_T1 = 0xe
};
enum hardware_control_bits {
NOT_TI_RESET = 0x1,
SYSTEM_CONTROLLER = 0x2,
NOT_PARALLEL_POLL = 0x4,
OSCILLATOR_5V_ON = 0x8,
OUTPUT_5V_ON = 0x20,
CPLD_3V_ON = 0x80,
};
enum led_control_bits {
FIRMWARE_LED_CONTROL = 0x1,
FAIL_LED_ON = 0x20,
READY_LED_ON = 0x40,
ACCESS_LED_ON = 0x80
};
enum reset_to_powerup_bits {
RESET_SPACEBALL = 0x1, // wait 2 millisec after sending
};
enum protocol_control_bits {
WRITE_COMPLETE_INTERRUPT_EN = 0x1,
};
static const int agilent_82357a_control_request = 0x4;
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