/****************************************************************************** * i8259.c * * Well, this is required for SMP systems as well, as it build interrupt * tables for IO APICS as well as uniprocessor 8259-alikes. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * Common place to define all x86 IRQ vectors * * This builds up the IRQ handler stubs using some ugly macros in irq.h * * These macros create the low-level assembly IRQ routines that save * register context and call do_IRQ(). do_IRQ() then does all the * operations that are needed to keep the AT (or SMP IOAPIC) * interrupt-controller happy. */ BUILD_COMMON_IRQ() #define BI(x,y) \ BUILD_IRQ(x##y) #define BUILD_16_IRQS(x) \ BI(x,0) BI(x,1) BI(x,2) BI(x,3) \ BI(x,4) BI(x,5) BI(x,6) BI(x,7) \ BI(x,8) BI(x,9) BI(x,a) BI(x,b) \ BI(x,c) BI(x,d) BI(x,e) BI(x,f) /* * ISA PIC or low IO-APIC triggered (INTA-cycle or APIC) interrupts: * (these are usually mapped to vectors 0x30-0x3f) */ BUILD_16_IRQS(0x0) #ifdef CONFIG_X86_IO_APIC /* * The IO-APIC gives us many more interrupt sources. Most of these * are unused but an SMP system is supposed to have enough memory ... * sometimes (mostly wrt. hw bugs) we get corrupted vectors all * across the spectrum, so we really want to be prepared to get all * of these. Plus, more powerful systems might have more than 64 * IO-APIC registers. * * (these are usually mapped into the 0x30-0xff vector range) */ BUILD_16_IRQS(0x1) BUILD_16_IRQS(0x2) BUILD_16_IRQS(0x3) BUILD_16_IRQS(0x4) BUILD_16_IRQS(0x5) BUILD_16_IRQS(0x6) BUILD_16_IRQS(0x7) BUILD_16_IRQS(0x8) BUILD_16_IRQS(0x9) BUILD_16_IRQS(0xa) BUILD_16_IRQS(0xb) BUILD_16_IRQS(0xc) #endif #undef BUILD_16_IRQS #undef BI /* * The following vectors are part of the Linux architecture, there * is no hardware IRQ pin equivalent for them, they are triggered * through the ICC by us (IPIs) */ #ifdef CONFIG_SMP BUILD_SMP_INTERRUPT(event_check_interrupt,EVENT_CHECK_VECTOR) BUILD_SMP_INTERRUPT(invalidate_interrupt,INVALIDATE_TLB_VECTOR) BUILD_SMP_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR) #endif /* * Every pentium local APIC has two 'local interrupts', with a * soft-definable vector attached to both interrupts, one of * which is a timer interrupt, the other one is error counter * overflow. Linux uses the local APIC timer interrupt to get * a much simpler SMP time architecture: */ BUILD_SMP_TIMER_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR) BUILD_SMP_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR) BUILD_SMP_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR) #define IRQ(x,y) \ IRQ##x##y##_interrupt #define IRQLIST_16(x) \ IRQ(x,0), IRQ(x,1), IRQ(x,2), IRQ(x,3), \ IRQ(x,4), IRQ(x,5), IRQ(x,6), IRQ(x,7), \ IRQ(x,8), IRQ(x,9), IRQ(x,a), IRQ(x,b), \ IRQ(x,c), IRQ(x,d), IRQ(x,e), IRQ(x,f) void *interrupt[NR_IRQS] = { IRQLIST_16(0x0), #ifdef CONFIG_X86_IO_APIC IRQLIST_16(0x1), IRQLIST_16(0x2), IRQLIST_16(0x3), IRQLIST_16(0x4), IRQLIST_16(0x5), IRQLIST_16(0x6), IRQLIST_16(0x7), IRQLIST_16(0x8), IRQLIST_16(0x9), IRQLIST_16(0xa), IRQLIST_16(0xb), IRQLIST_16(0xc) #endif }; #undef IRQ #undef IRQLIST_16 /* * This is the 'legacy' 8259A Programmable Interrupt Controller, * present in the majority of PC/AT boxes. * plus some generic x86 specific things if generic specifics makes * any sense at all. * this file should become arch/i386/kernel/irq.c when the old irq.c * moves to arch independent land */ spinlock_t i8259A_lock = SPIN_LOCK_UNLOCKED; static void end_8259A_irq (unsigned int irq) { if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) enable_8259A_irq(irq); } #define shutdown_8259A_irq disable_8259A_irq void mask_and_ack_8259A(unsigned int); static unsigned int startup_8259A_irq(unsigned int irq) { enable_8259A_irq(irq); return 0; /* never anything pending */ } static struct hw_interrupt_type i8259A_irq_type = { "XT-PIC", startup_8259A_irq, shutdown_8259A_irq, enable_8259A_irq, disable_8259A_irq, mask_and_ack_8259A, end_8259A_irq, NULL }; /* * 8259A PIC functions to handle ISA devices: */ /* * This contains the irq mask for both 8259A irq controllers, */ static unsigned int cached_irq_mask = 0xffff; #define __byte(x,y) (((unsigned char *)&(y))[x]) #define cached_21 (__byte(0,cached_irq_mask)) #define cached_A1 (__byte(1,cached_irq_mask)) /* * Not all IRQs can be routed through the IO-APIC, eg. on certain (older) * boards the timer interrupt is not really connected to any IO-APIC pin, * it's fed to the master 8259A's IR0 line only. * * Any '1' bit in this mask means the IRQ is routed through the IO-APIC. * this 'mixed mode' IRQ handling costs nothing because it's only used * at IRQ setup time. */ unsigned long io_apic_irqs; void disable_8259A_irq(unsigned int irq) { unsigned int mask = 1 << irq; unsigned long flags; spin_lock_irqsave(&i8259A_lock, flags); cached_irq_mask |= mask; if (irq & 8) outb(cached_A1,0xA1); else outb(cached_21,0x21); spin_unlock_irqrestore(&i8259A_lock, flags); } void enable_8259A_irq(unsigned int irq) { unsigned int mask = ~(1 << irq); unsigned long flags; spin_lock_irqsave(&i8259A_lock, flags); cached_irq_mask &= mask; if (irq & 8) outb(cached_A1,0xA1); else outb(cached_21,0x21); spin_unlock_irqrestore(&i8259A_lock, flags); } int i8259A_irq_pending(unsigned int irq) { unsigned int mask = 1<> 8); spin_unlock_irqrestore(&i8259A_lock, flags); return ret; } void make_8259A_irq(unsigned int irq) { disable_irq_nosync(irq); io_apic_irqs &= ~(1<> 8); outb(0x0A,0xA0); /* back to the IRR register */ return value; } /* * Careful! The 8259A is a fragile beast, it pretty * much _has_ to be done exactly like this (mask it * first, _then_ send the EOI, and the order of EOI * to the two 8259s is important! */ void mask_and_ack_8259A(unsigned int irq) { unsigned int irqmask = 1 << irq; unsigned long flags; spin_lock_irqsave(&i8259A_lock, flags); /* * Lightweight spurious IRQ detection. We do not want * to overdo spurious IRQ handling - it's usually a sign * of hardware problems, so we only do the checks we can * do without slowing down good hardware unnecesserily. * * Note that IRQ7 and IRQ15 (the two spurious IRQs * usually resulting from the 8259A-1|2 PICs) occur * even if the IRQ is masked in the 8259A. Thus we * can check spurious 8259A IRQs without doing the * quite slow i8259A_irq_real() call for every IRQ. * This does not cover 100% of spurious interrupts, * but should be enough to warn the user that there * is something bad going on ... */ if (cached_irq_mask & irqmask) goto spurious_8259A_irq; cached_irq_mask |= irqmask; handle_real_irq: if (irq & 8) { inb(0xA1); /* DUMMY - (do we need this?) */ outb(cached_A1,0xA1); outb(0x60+(irq&7),0xA0);/* 'Specific EOI' to slave */ outb(0x62,0x20); /* 'Specific EOI' to master-IRQ2 */ } else { inb(0x21); /* DUMMY - (do we need this?) */ outb(cached_21,0x21); outb(0x60+irq,0x20); /* 'Specific EOI' to master */ } spin_unlock_irqrestore(&i8259A_lock, flags); return; spurious_8259A_irq: /* * this is the slow path - should happen rarely. */ if (i8259A_irq_real(irq)) /* * oops, the IRQ _is_ in service according to the * 8259A - not spurious, go handle it. */ goto handle_real_irq; { static int spurious_irq_mask; /* * At this point we can be sure the IRQ is spurious, * lets ACK and report it. [once per IRQ] */ if (!(spurious_irq_mask & irqmask)) { printk("spurious 8259A interrupt: IRQ%d.\n", irq); spurious_irq_mask |= irqmask; } atomic_inc(&irq_err_count); /* * Theoretically we do not have to handle this IRQ, * but in Linux this does not cause problems and is * simpler for us. */ goto handle_real_irq; } } void __init init_8259A(int auto_eoi) { unsigned long flags; spin_lock_irqsave(&i8259A_lock, flags); outb(0xff, 0x21); /* mask all of 8259A-1 */ outb(0xff, 0xA1); /* mask all of 8259A-2 */ /* * outb_p - this has to work on a wide range of PC hardware. */ outb_p(0x11, 0x20); /* ICW1: select 8259A-1 init */ outb_p(0x30 + 0, 0x21); /* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 */ outb_p(0x04, 0x21); /* 8259A-1 (the master) has a slave on IR2 */ if (auto_eoi) outb_p(0x03, 0x21); /* master does Auto EOI */ else outb_p(0x01, 0x21); /* master expects normal EOI */ outb_p(0x11, 0xA0); /* ICW1: select 8259A-2 init */ outb_p(0x30 + 8, 0xA1); /* ICW2: 8259A-2 IR0-7 mapped to 0x38-0x3f */ outb_p(0x02, 0xA1); /* 8259A-2 is a slave on master's IR2 */ outb_p(0x01, 0xA1); /* (slave's support for AEOI in flat mode is to be investigated) */ if (auto_eoi) /* * in AEOI mode we just have to mask the interrupt * when acking. */ i8259A_irq_type.ack = disable_8259A_irq; else i8259A_irq_type.ack = mask_and_ack_8259A; udelay(100); /* wait for 8259A to initialize */ outb(cached_21, 0x21); /* restore master IRQ mask */ outb(cached_A1, 0xA1); /* restore slave IRQ mask */ spin_unlock_irqrestore(&i8259A_lock, flags); } static struct irqaction cascade = { no_action, "cascade", NULL}; void __init init_IRQ(void) { int i; init_bsp_APIC(); init_8259A(0); for ( i = 0; i < NR_IRQS; i++ ) { irq_desc[i].status = IRQ_DISABLED; irq_desc[i].handler = (i<16) ? &i8259A_irq_type : &no_irq_type; irq_desc[i].action = NULL; irq_desc[i].depth = 1; spin_lock_init(&irq_desc[i].lock); set_intr_gate(FIRST_EXTERNAL_VECTOR+i, interrupt[i]); } #ifdef CONFIG_SMP /* * IRQ0 must be given a fixed assignment and initialized, * because it's used before the IO-APIC is set up. */ set_intr_gate(FIRST_DEVICE_VECTOR, interrupt[0]); /* Various IPI functions. */ set_intr_gate(EVENT_CHECK_VECTOR, event_check_interrupt); set_intr_gate(INVALIDATE_TLB_VECTOR, invalidate_interrupt); set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt); #endif /* Self-generated IPI for local APIC timer. */ set_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt); /* IPI vectors for APIC spurious and error interrupts. */ set_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt); set_intr_gate(ERROR_APIC_VECTOR, error_interrupt); /* Set the clock to HZ Hz */ #define CLOCK_TICK_RATE 1193180 /* crystal freq (Hz) */ #define LATCH (((CLOCK_TICK_RATE)+(HZ/2))/HZ) outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */ outb_p(LATCH & 0xff , 0x40); /* LSB */ outb(LATCH >> 8 , 0x40); /* MSB */ setup_irq(2, &cascade); } ound-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
namespace Project1HostApp
{
    partial class frmDataloggerSettings
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.btnSetValues = new System.Windows.Forms.Button();
            this.dtpTime = new System.Windows.Forms.DateTimePicker();
            this.lblTime = new System.Windows.Forms.Label();
            this.lblLoggingInterval = new System.Windows.Forms.Label();
            this.nudLogInterval = new System.Windows.Forms.NumericUpDown();
            this.lblSeconds = new System.Windows.Forms.Label();
            this.btnGetValues = new System.Windows.Forms.Button();
            this.lblDate = new System.Windows.Forms.Label();
            this.dtpDate = new System.Windows.Forms.DateTimePicker();
            ((System.ComponentModel.ISupportInitialize)(this.nudLogInterval)).BeginInit();
            this.SuspendLayout();
            // 
            // btnSetValues
            // 
            this.btnSetValues.Location = new System.Drawing.Point(168, 136);
            this.btnSetValues.Name = "btnSetValues";
            this.btnSetValues.Size = new System.Drawing.Size(90, 35);
            this.btnSetValues.TabIndex = 0;
            this.btnSetValues.Text = "Set Values";
            this.btnSetValues.UseVisualStyleBackColor = true;
            this.btnSetValues.Click += new System.EventHandler(this.btnSetValues_Click);
            // 
            // dtpTime
            // 
            this.dtpTime.CustomFormat = "";
            this.dtpTime.Format = System.Windows.Forms.DateTimePickerFormat.Time;
            this.dtpTime.Location = new System.Drawing.Point(148, 61);
            this.dtpTime.Name = "dtpTime";
            this.dtpTime.ShowUpDown = true;
            this.dtpTime.Size = new System.Drawing.Size(110, 20);
            this.dtpTime.TabIndex = 1;
            // 
            // lblTime
            // 
            this.lblTime.AutoSize = true;
            this.lblTime.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.lblTime.Location = new System.Drawing.Point(51, 67);
            this.lblTime.Name = "lblTime";
            this.lblTime.Size = new System.Drawing.Size(82, 13);
            this.lblTime.TabIndex = 2;
            this.lblTime.Text = "Device Time:";
            // 
            // lblLoggingInterval
            // 
            this.lblLoggingInterval.AutoSize = true;
            this.lblLoggingInterval.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.lblLoggingInterval.Location = new System.Drawing.Point(30, 101);
            this.lblLoggingInterval.Name = "lblLoggingInterval";
            this.lblLoggingInterval.Size = new System.Drawing.Size(103, 13);
            this.lblLoggingInterval.TabIndex = 3;
            this.lblLoggingInterval.Text = "Logging Interval:";
            // 
            // nudLogInterval
            // 
            this.nudLogInterval.Location = new System.Drawing.Point(148, 94);
            this.nudLogInterval.Maximum = new decimal(new int[] {
            60,
            0,
            0,
            0});
            this.nudLogInterval.Minimum = new decimal(new int[] {
            1,
            0,
            0,
            0});
            this.nudLogInterval.Name = "nudLogInterval";
            this.nudLogInterval.Size = new System.Drawing.Size(51, 20);
            this.nudLogInterval.TabIndex = 5;
            this.nudLogInterval.Value = new decimal(new int[] {
            5,
            0,
            0,
            0});
            // 
            // lblSeconds
            // 
            this.lblSeconds.AutoSize = true;
            this.lblSeconds.Location = new System.Drawing.Point(209, 101);
            this.lblSeconds.Name = "lblSeconds";
            this.lblSeconds.Size = new System.Drawing.Size(49, 13);
            this.lblSeconds.TabIndex = 6;
            this.lblSeconds.Text = "Seconds";
            // 
            // btnGetValues
            // 
            this.btnGetValues.Location = new System.Drawing.Point(30, 136);
            this.btnGetValues.Name = "btnGetValues";
            this.btnGetValues.Size = new System.Drawing.Size(90, 35);
            this.btnGetValues.TabIndex = 7;
            this.btnGetValues.Text = "Get Values";
            this.btnGetValues.UseVisualStyleBackColor = true;
            this.btnGetValues.Click += new System.EventHandler(this.btnGetValues_Click);
            // 
            // lblDate
            // 
            this.lblDate.AutoSize = true;
            this.lblDate.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.lblDate.Location = new System.Drawing.Point(51, 33);
            this.lblDate.Name = "lblDate";
            this.lblDate.Size = new System.Drawing.Size(82, 13);
            this.lblDate.TabIndex = 8;
            this.lblDate.Text = "Device Date:";
            // 
            // dtpDate
            // 
            this.dtpDate.CustomFormat = "dd/MM/yyyy";
            this.dtpDate.Format = System.Windows.Forms.DateTimePickerFormat.Custom;
            this.dtpDate.Location = new System.Drawing.Point(148, 27);
            this.dtpDate.Name = "dtpDate";
            this.dtpDate.Size = new System.Drawing.Size(110, 20);
            this.dtpDate.TabIndex = 9;
            // 
            // frmDataloggerSettings
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(300, 197);
            this.Controls.Add(this.dtpDate);
            this.Controls.Add(this.lblDate);
            this.Controls.Add(this.btnGetValues);
            this.Controls.Add(this.lblSeconds);
            this.Controls.Add(this.nudLogInterval);
            this.Controls.Add(this.lblLoggingInterval);
            this.Controls.Add(this.lblTime);
            this.Controls.Add(this.dtpTime);
            this.Controls.Add(this.btnSetValues);
            this.MaximizeBox = false;
            this.MinimizeBox = false;
            this.Name = "frmDataloggerSettings";
            this.Text = "Datalogger";
            this.Load += new System.EventHandler(this.frmDataloggerSettings_Load);
            ((System.ComponentModel.ISupportInitialize)(this.nudLogInterval)).EndInit();
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button btnSetValues;
        private System.Windows.Forms.DateTimePicker dtpTime;
        private System.Windows.Forms.Label lblTime;
        private System.Windows.Forms.Label lblLoggingInterval;
        private System.Windows.Forms.NumericUpDown nudLogInterval;
        private System.Windows.Forms.Label lblSeconds;
        private System.Windows.Forms.Button btnGetValues;
        private System.Windows.Forms.Label lblDate;
        private System.Windows.Forms.DateTimePicker dtpDate;
    }
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-19 21:56:45 +0000