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# mouse_task.c

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    00001 /*This file is prepared for Doxygen automatic documentation generation.*/
    00013
    00014 /* Copyright (c) 2009 Atmel Corporation. All rights reserved.
    00015  *
    00016  * Redistribution and use in source and binary forms, with or without
    00017  * modification, are permitted provided that the following conditions are met:
    00018  *
    00019  * 1. Redistributions of source code must retain the above copyright notice,
    00020  * this list of conditions and the following disclaimer.
    00021  *
    00022  * 2. Redistributions in binary form must reproduce the above copyright notice,
    00023  * this list of conditions and the following disclaimer in the documentation
    00024  * and/or other materials provided with the distribution.
    00025  *
    00026  * 3. The name of Atmel may not be used to endorse or promote products derived
    00027  * from this software without specific prior written permission.
    00028  *
    00029  * 4. This software may only be redistributed and used in connection with an Atmel
    00030  * AVR product.
    00031  *
    00032  * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
    00033  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    00034  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE EXPRESSLY AND
    00035  * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT,
    00036  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    00037  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    00038  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    00039  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    00040  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    00041  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00042  */
    00043
    00044 //_____  I N C L U D E S ___________________________________________________
    00045
    00046 #include "config.h"
    00047 #include "conf_usb.h"
    00048
    00049 #include "mouse_task.h"
    00050 #include "usb_descriptors.h"
    00051
    00052 #include "lib_mcu/usb/usb_drv.h"
    00053 #include "lib_mcu/wdt/wdt_drv.h"
    00054 #include "lib_mcu/power/power_drv.h"
    00055 #include "lib_mcu/pll/pll_drv.h"
    00056 #include "lib_mcu/util/start_boot.h"
    00057 #include "lib_mcu/flash/flash_drv.h"
    00058 #include "lib_mcu/cal_inter_rc/cal_inter_rc.h"
    00059 #include "modules/usb/device_chap9/usb_standard_request.h"
    00060
    00061
    00062 //_____ M A C R O S ________________________________________________________
    00063
    00066 #define  Hid_mouse_report_up()            (g_hid_mouse_report[2]-=MOUSE_SPEED)
    00067 #define  Hid_mouse_report_down()          (g_hid_mouse_report[2]+=MOUSE_SPEED)
    00068 #define  Hid_mouse_report_left()          (g_hid_mouse_report[1]-=MOUSE_SPEED)
    00069 #define  Hid_mouse_report_right()         (g_hid_mouse_report[1]+=MOUSE_SPEED)
    00070
    00071 #define  Hid_mouse_report_scroll_up()     (g_hid_mouse_report[3]+=MOUSE_SPEED)
    00072 #define  Hid_mouse_report_scroll_down()   (g_hid_mouse_report[3]-=MOUSE_SPEED)
    00073
    00074 #define  Hid_mouse_report_click_left()    (g_hid_mouse_report[0] |= 0x01)
    00075 #define  Hid_mouse_report_click_right()   (g_hid_mouse_report[0] |= 0x02)
    00076 #define  Hid_mouse_report_click_middle()  (g_hid_mouse_report[0] |= 0x04)
    00077
    00078
    00079 #define  Hid_mouse_report_reset()         (g_hid_mouse_report[0]=0,g_hid_mouse_report[1]=0,g_hid_mouse_report[2]=0,g_hid_mouse_report[3]=0)
    00080
    00081
    00084 #define Is_mouse_left_event()             Is_switch_3()
    00085 #define Is_mouse_right_event()            Is_switch_2()
    00086 #define Is_mouse_up_event()               Is_switch_1()
    00087 #define Is_mouse_down_event()             Is_switch_0()
    00088
    00089 #define Is_mouse_scroll_up_event()        FALSE
    00090 #define Is_mouse_scroll_down_event()      FALSE
    00091
    00092 #define Is_mouse_click_left_event()       Is_switch_6()
    00093 #define Is_mouse_click_middle_event()     Is_switch_5()
    00094 #define Is_mouse_click_right_event()      Is_switch_4()
    00095
    00096
    00097
    00098 //_____ D E C L A R A T I O N S ____________________________________________
    00099
    00100 bit   is_mouse_event(void);
    00101
    00103 Bool  g_b_send_report;
    00105 Bool  g_b_send_ack_report;
    00107 U8    g_hid_mouse_report[4];
    00109 volatile U8 g_u8_cpt_sof;
    00110 volatile int g_int_cpt_cal_update;
    00111
    00112
    00115 void mouse_task_init(void)
    00116 {
    00117    // Init SOF
    00118    g_u8_cpt_sof=0;
    00119    Usb_enable_sof_interrupt();
    00120
    00121    // Init interface board
    00122    Switches_init();
    00123    Leds_init();
    00124    Led7_on();
    00125    Led6_off();
    00126
    00127    // Send a ack report at startup
    00128    g_b_send_report      = FALSE;
    00129    g_b_send_ack_report  = TRUE;
    00130
    00131    // Init the internal OSC calibration counter
    00132    g_int_cpt_cal_update = 0;
    00133 }
    00134
    00135
    00138 void mouse_task(void)
    00139 {
    00140    if(!Is_device_enumerated())
    00141       return;  // Device not ready
    00142
    00143 #if (USB_LOW_SPEED_DEVICE==DISABLE)
    00144    // The SOF is used to schedule the task at the same frequency that Endpoint Interrupt frequency
    00145    // This check allow to win a CPU time
    00146    if(g_u8_cpt_sof<NB_IDLE_POLLING_SOF)
    00147       return;  // Wait a delay
    00148    g_u8_cpt_sof=0;
    00149 #endif
    00150
    00151    if(!g_b_send_report)
    00152    {
    00153       // No report sending on going then check mouse event to eventualy fill a new report
    00154       if(is_mouse_event())
    00155       {
    00156          // Enable sending of report
    00157          g_b_send_report      = TRUE;
    00158       }
    00159    }
    00160
    00161    if((!g_b_send_report)&&(!g_b_send_ack_report))
    00162       return;  // No report and ack to send
    00163
    00164    //** A report or ack must be send
    00165    Usb_select_endpoint(EP_MOUSE_IN);
    00166    if(!Is_usb_write_enabled())
    00167       return;  // Endpoint no free
    00168
    00169    Led6_on();
    00170    if( g_b_send_report )
    00171    {
    00172       g_b_send_report      = FALSE;
    00173       // Send an ack after a "clic" report only
    00174       g_b_send_ack_report = (0!=g_hid_mouse_report[0]);
    00175    }
    00176    else
    00177    {
    00178       Hid_mouse_report_reset();     // Reset report to have a ack report
    00179       g_b_send_ack_report  = FALSE;
    00180    }
    00181    // Send report
    00182    Usb_write_byte(g_hid_mouse_report[0]);
    00183    Usb_write_byte(g_hid_mouse_report[1]);
    00184    Usb_write_byte(g_hid_mouse_report[2]);
    00185    Usb_write_byte(g_hid_mouse_report[3]);
    00186    Usb_ack_in_ready();
    00187    Led6_off();
    00188 }
    00189
    00190
    00196 bit is_mouse_event(void)
    00197 {
    00198    Hid_mouse_report_reset();
    00199
    00200    // Check Click events
    00201    if(Is_mouse_click_left_event()) {
    00202       Hid_mouse_report_click_left();
    00203    }
    00204    if(Is_mouse_click_middle_event()) {
    00205       Hid_mouse_report_click_middle();
    00206    }
    00207    if(Is_mouse_click_right_event()) {
    00208       Hid_mouse_report_click_right();
    00209    }
    00210
    00211    // Check Mouve events
    00212    if (Is_mouse_left_event()) {
    00213       Hid_mouse_report_left();
    00214    }
    00215    if (Is_mouse_right_event()) {
    00216       Hid_mouse_report_right();
    00217    }
    00218    if (Is_mouse_up_event()) {
    00219       Hid_mouse_report_up();
    00220    }
    00221    if (Is_mouse_down_event()) {
    00222       Hid_mouse_report_down();
    00223    }
    00224    if (Is_mouse_scroll_up_event()) {
    00225       Hid_mouse_report_scroll_up();
    00226    }
    00227    if (Is_mouse_scroll_down_event()) {
    00228       Hid_mouse_report_scroll_down();
    00229    }
    00230
    00231    // Check report
    00232    if((0==g_hid_mouse_report[0])
    00233    && (0==g_hid_mouse_report[1])
    00234    && (0==g_hid_mouse_report[2])
    00235    && (0==g_hid_mouse_report[3]))
    00236    {
    00237       return FALSE;  // No event
    00238    }
    00239    return TRUE;      // Event(s) occurs
    00240 }
    00241
    00242
    00250 void sof_action()
    00251 {
    00252    g_u8_cpt_sof++;
    00253
    00254 }
    00261 void update_osc_cal_task()
    00262 {
    00263   g_int_cpt_cal_update++;
    00264   if(g_int_cpt_cal_update > 3000)
    00265  {
    00266    g_int_cpt_cal_update = 0;
    00267    calibrate_inter_osc(vcc_5);
    00268  }
    00269 }
    00270
    00277 void suspend_action(void)
    00278 {
    00279 #if (USB_REMOTE_WAKEUP_FEATURE == ENABLED)
    00280    if (remote_wakeup_feature == ENABLED)
    00281    {
    00282       Switches_enable_it();
    00283    }
    00284    Led7_off();
    00285    Enable_interrupt();
    00286    Enter_power_down_mode();
    00287    Led7_on();
    00288 #endif
    00289 }
    00290
    00291
    00292 #if (USB_REMOTE_WAKEUP_FEATURE == ENABLED)
    00293
    00294
    00295
    00296
    00297
    00298
    00299 #ifdef __GNUC__
    00300  ISR(PCINT0_vect)
    00301 #else
    00302 #pragma vector = PCINT0_vect
    00303 __interrupt void switch_event_int()
    00304 #endif
    00305 {
    00306    Switches_disable_it();
    00307    usb_generate_remote_wakeup();
    00308 }
    00309 #endif
    00310