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<div class="title">USB OHCI/EHCI</div> </div>
<div class="ingroups"><a class="el" href="group__usbh__interface__gr.html">USB Host Interface</a></div></div><!--header-->
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<p>Driver API for USB OHCI/EHCI.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:struct_a_r_m___d_r_i_v_e_r___u_s_b_h___h_c_i"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#struct_a_r_m___d_r_i_v_e_r___u_s_b_h___h_c_i">ARM_DRIVER_USBH_HCI</a></td></tr>
<tr class="memdesc:struct_a_r_m___d_r_i_v_e_r___u_s_b_h___h_c_i"><td class="mdescLeft"> </td><td class="mdescRight">Access structure of USB Host HCI (OHCI/EHCI) Driver. <a href="group__usbh__hci__gr.html#struct_a_r_m___d_r_i_v_e_r___u_s_b_h___h_c_i">More...</a><br/></td></tr>
<tr class="separator:struct_a_r_m___d_r_i_v_e_r___u_s_b_h___h_c_i"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s">ARM_USBH_HCI_CAPABILITIES</a></td></tr>
<tr class="memdesc:struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s"><td class="mdescLeft"> </td><td class="mdescRight">USB Host HCI (OHCI/EHCI) Driver Capabilities. <a href="group__usbh__hci__gr.html#struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s">More...</a><br/></td></tr>
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Typedefs</h2></td></tr>
<tr class="memitem:gac60df9d1f2b3a769f2c30141800a9806"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#gac60df9d1f2b3a769f2c30141800a9806">ARM_USBH_HCI_Interrupt_t</a> )(void)</td></tr>
<tr class="memdesc:gac60df9d1f2b3a769f2c30141800a9806"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to Interrupt Handler Routine. <a href="#gac60df9d1f2b3a769f2c30141800a9806"></a><br/></td></tr>
<tr class="separator:gac60df9d1f2b3a769f2c30141800a9806"><td class="memSeparator" colspan="2"> </td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ga10109d0c2a9a128225b5e893d3f72d08"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#ga10109d0c2a9a128225b5e893d3f72d08">ARM_USBH_HCI_GetVersion</a> (void)</td></tr>
<tr class="memdesc:ga10109d0c2a9a128225b5e893d3f72d08"><td class="mdescLeft"> </td><td class="mdescRight">Get USB Host HCI (OHCI/EHCI) driver version. <a href="#ga10109d0c2a9a128225b5e893d3f72d08"></a><br/></td></tr>
<tr class="separator:ga10109d0c2a9a128225b5e893d3f72d08"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gae607c49ca97202500631473a901e8c2b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__usbh__hci__gr.html#struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s">ARM_USBH_HCI_CAPABILITIES</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#gae607c49ca97202500631473a901e8c2b">ARM_USBH_HCI_GetCapabilities</a> (void)</td></tr>
<tr class="memdesc:gae607c49ca97202500631473a901e8c2b"><td class="mdescLeft"> </td><td class="mdescRight">Get driver capabilities. <a href="#gae607c49ca97202500631473a901e8c2b"></a><br/></td></tr>
<tr class="separator:gae607c49ca97202500631473a901e8c2b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gabc1392a544cb64491b5ea5ce6590d832"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#gabc1392a544cb64491b5ea5ce6590d832">ARM_USBH_HCI_Initialize</a> (<a class="el" href="group__usbh__hci__gr.html#gac60df9d1f2b3a769f2c30141800a9806">ARM_USBH_HCI_Interrupt_t</a> *cb_interrupt)</td></tr>
<tr class="memdesc:gabc1392a544cb64491b5ea5ce6590d832"><td class="mdescLeft"> </td><td class="mdescRight">Initialize USB Host HCI (OHCI/EHCI) Interface. <a href="#gabc1392a544cb64491b5ea5ce6590d832"></a><br/></td></tr>
<tr class="separator:gabc1392a544cb64491b5ea5ce6590d832"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaacb68fdf201cdb1846b31642a760f041"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#gaacb68fdf201cdb1846b31642a760f041">ARM_USBH_HCI_Uninitialize</a> (void)</td></tr>
<tr class="memdesc:gaacb68fdf201cdb1846b31642a760f041"><td class="mdescLeft"> </td><td class="mdescRight">De-initialize USB Host HCI (OHCI/EHCI) Interface. <a href="#gaacb68fdf201cdb1846b31642a760f041"></a><br/></td></tr>
<tr class="separator:gaacb68fdf201cdb1846b31642a760f041"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga27fa5ec8854cd9877bbef4abffe9a12b"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#ga27fa5ec8854cd9877bbef4abffe9a12b">ARM_USBH_HCI_PowerControl</a> (<a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a> state)</td></tr>
<tr class="memdesc:ga27fa5ec8854cd9877bbef4abffe9a12b"><td class="mdescLeft"> </td><td class="mdescRight">Control USB Host HCI (OHCI/EHCI) Interface Power. <a href="#ga27fa5ec8854cd9877bbef4abffe9a12b"></a><br/></td></tr>
<tr class="separator:ga27fa5ec8854cd9877bbef4abffe9a12b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gade1e83403c6ea965fe3e6c4c21fbbded"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#gade1e83403c6ea965fe3e6c4c21fbbded">ARM_USBH_HCI_PortVbusOnOff</a> (uint8_t port, bool vbus)</td></tr>
<tr class="memdesc:gade1e83403c6ea965fe3e6c4c21fbbded"><td class="mdescLeft"> </td><td class="mdescRight">USB Host HCI (OHCI/EHCI) Root HUB Port VBUS on/off. <a href="#gade1e83403c6ea965fe3e6c4c21fbbded"></a><br/></td></tr>
<tr class="separator:gade1e83403c6ea965fe3e6c4c21fbbded"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga79d3c2509ed869c8d7d1485acad7b6c6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#ga79d3c2509ed869c8d7d1485acad7b6c6">ARM_USBH_HCI_Interrupt</a> (void)</td></tr>
<tr class="memdesc:ga79d3c2509ed869c8d7d1485acad7b6c6"><td class="mdescLeft"> </td><td class="mdescRight">USB Host HCI Interrupt Handler. <a href="#ga79d3c2509ed869c8d7d1485acad7b6c6"></a><br/></td></tr>
<tr class="separator:ga79d3c2509ed869c8d7d1485acad7b6c6"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<p>Driver API for USB OHCI/EHCI. </p>
<p>OHCI and EHCI compliant interfaces have memory mapped registers that are used to control the USB host.</p>
<p>Only certain functionalities (interrupts, VBUS control, power control) require device specific interface which is provided through functions of the struct <a class="el" href="group__usbh__hci__gr.html#struct_a_r_m___d_r_i_v_e_r___u_s_b_h___h_c_i">ARM_DRIVER_USBH_HCI</a> (functionality accessed with the struct <a class="el" href="group__usbh__host__gr.html#struct_a_r_m___d_r_i_v_e_r___u_s_b_h">ARM_DRIVER_USBH</a> is not needed). </p>
<hr/><h2 class="groupheader">Data Structure Documentation</h2>
<a name="struct_a_r_m___d_r_i_v_e_r___u_s_b_h___h_c_i" id="struct_a_r_m___d_r_i_v_e_r___u_s_b_h___h_c_i"></a>
<div class="memitem">
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<table class="memname">
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<td class="memname">struct ARM_DRIVER_USBH_HCI</td>
</tr>
</table>
</div><div class="memdoc">
<div class="textblock"><p>Access structure of USB Host HCI (OHCI/EHCI) Driver. </p>
<p>The functions of the USB Host HCI (OHCI/EHCI) driver are accessed by function pointers. Refer to <a class="el" href="_theory_operation.html#DriverFunctions">Common Driver Functions</a> for overview information.</p>
<p>Each instance of an USBH provides such an access struct. The instance is indicated by a postfix in the symbol name of the access struct, for example:</p>
<ul>
<li><b>Driver_USBH0_HCI</b> is the name of the access struct of the first instance (no. 0).</li>
<li><b>Driver_USBH1_HCI</b> is the name of the access struct of the second instance (no. 1).</li>
</ul>
<p>A configuration setting in the middleware allows connecting the middleware to a specific driver instance <b>Driver_USBH<em>n</em>_HCI</b>. The default is <span class="XML-Token">0</span>, which connects a middleware to the first instance of a driver.</p>
<dl class="section note"><dt>Note</dt><dd>The struct must remain unchanged. </dd></dl>
</div><table class="memberdecls">
<tr><td colspan="2"><h3>Data Fields</h3></td></tr>
<tr class="memitem:a8834b281da48583845c044a81566c1b3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a>(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#a8834b281da48583845c044a81566c1b3">GetVersion</a> )(void)</td></tr>
<tr class="memdesc:a8834b281da48583845c044a81566c1b3"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__usbh__hci__gr.html#ga10109d0c2a9a128225b5e893d3f72d08">ARM_USBH_HCI_GetVersion</a> : Get USB Host HCI (OHCI/EHCI) driver version. <a href="#a8834b281da48583845c044a81566c1b3"></a><br/></td></tr>
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<tr class="memitem:a7a41769405bb3bb4cc9eaba26cf220d4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__usbh__hci__gr.html#struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s">ARM_USBH_HCI_CAPABILITIES</a>(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#a7a41769405bb3bb4cc9eaba26cf220d4">GetCapabilities</a> )(void)</td></tr>
<tr class="memdesc:a7a41769405bb3bb4cc9eaba26cf220d4"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__usbh__hci__gr.html#gae607c49ca97202500631473a901e8c2b">ARM_USBH_HCI_GetCapabilities</a> : Get driver capabilities. <a href="#a7a41769405bb3bb4cc9eaba26cf220d4"></a><br/></td></tr>
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<tr class="memitem:a40cbaad9fd2458b1008d31e1469903bb"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#a40cbaad9fd2458b1008d31e1469903bb">Initialize</a> )(<a class="el" href="group__usbh__hci__gr.html#gac60df9d1f2b3a769f2c30141800a9806">ARM_USBH_HCI_Interrupt_t</a> cb_interrupt)</td></tr>
<tr class="memdesc:a40cbaad9fd2458b1008d31e1469903bb"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__usbh__hci__gr.html#gabc1392a544cb64491b5ea5ce6590d832">ARM_USBH_HCI_Initialize</a> : Initialize USB Host HCI (OHCI/EHCI) Interface. <a href="#a40cbaad9fd2458b1008d31e1469903bb"></a><br/></td></tr>
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<tr class="memitem:adcf20681a1402869ecb5c6447fada17b"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#adcf20681a1402869ecb5c6447fada17b">Uninitialize</a> )(void)</td></tr>
<tr class="memdesc:adcf20681a1402869ecb5c6447fada17b"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__usbh__hci__gr.html#gaacb68fdf201cdb1846b31642a760f041">ARM_USBH_HCI_Uninitialize</a> : De-initialize USB Host HCI (OHCI/EHCI) Interface. <a href="#adcf20681a1402869ecb5c6447fada17b"></a><br/></td></tr>
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<tr class="memitem:aba8f1c8019af95ffe19c32403e3240ef"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#aba8f1c8019af95ffe19c32403e3240ef">PowerControl</a> )(<a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a> state)</td></tr>
<tr class="memdesc:aba8f1c8019af95ffe19c32403e3240ef"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__usbh__hci__gr.html#ga27fa5ec8854cd9877bbef4abffe9a12b">ARM_USBH_HCI_PowerControl</a> : Control USB Host HCI (OHCI/EHCI) Interface Power. <a href="#aba8f1c8019af95ffe19c32403e3240ef"></a><br/></td></tr>
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<tr class="memitem:ab859fb9f73a60ffa1ce71ed961d4744f"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__hci__gr.html#ab859fb9f73a60ffa1ce71ed961d4744f">PortVbusOnOff</a> )(uint8_t port, bool vbus)</td></tr>
<tr class="memdesc:ab859fb9f73a60ffa1ce71ed961d4744f"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__usbh__hci__gr.html#gade1e83403c6ea965fe3e6c4c21fbbded">ARM_USBH_HCI_PortVbusOnOff</a> : USB Host HCI (OHCI/EHCI) Root HUB Port VBUS on/off. <a href="#ab859fb9f73a60ffa1ce71ed961d4744f"></a><br/></td></tr>
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<h4 class="groupheader">Field Documentation</h4>
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<td class="memname"><a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a>(* GetVersion)(void)</td>
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<p>Pointer to <a class="el" href="group__usbh__hci__gr.html#ga10109d0c2a9a128225b5e893d3f72d08">ARM_USBH_HCI_GetVersion</a> : Get USB Host HCI (OHCI/EHCI) driver version. </p>
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<td class="memname"><a class="el" href="group__usbh__hci__gr.html#struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s">ARM_USBH_HCI_CAPABILITIES</a>(* GetCapabilities)(void)</td>
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<p>Pointer to <a class="el" href="group__usbh__hci__gr.html#gae607c49ca97202500631473a901e8c2b">ARM_USBH_HCI_GetCapabilities</a> : Get driver capabilities. </p>
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<td class="memname">int32_t(* Initialize)(<a class="el" href="group__usbh__hci__gr.html#gac60df9d1f2b3a769f2c30141800a9806">ARM_USBH_HCI_Interrupt_t</a> cb_interrupt)</td>
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<p>Pointer to <a class="el" href="group__usbh__hci__gr.html#gabc1392a544cb64491b5ea5ce6590d832">ARM_USBH_HCI_Initialize</a> : Initialize USB Host HCI (OHCI/EHCI) Interface. </p>
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<td class="memname">int32_t(* Uninitialize)(void)</td>
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<p>Pointer to <a class="el" href="group__usbh__hci__gr.html#gaacb68fdf201cdb1846b31642a760f041">ARM_USBH_HCI_Uninitialize</a> : De-initialize USB Host HCI (OHCI/EHCI) Interface. </p>
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<td class="memname">int32_t(* PowerControl)(<a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a> state)</td>
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<p>Pointer to <a class="el" href="group__usbh__hci__gr.html#ga27fa5ec8854cd9877bbef4abffe9a12b">ARM_USBH_HCI_PowerControl</a> : Control USB Host HCI (OHCI/EHCI) Interface Power. </p>
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<td class="memname">int32_t(* PortVbusOnOff)(uint8_t port, bool vbus)</td>
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<p>Pointer to <a class="el" href="group__usbh__hci__gr.html#gade1e83403c6ea965fe3e6c4c21fbbded">ARM_USBH_HCI_PortVbusOnOff</a> : USB Host HCI (OHCI/EHCI) Root HUB Port VBUS on/off. </p>
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<td class="memname">struct ARM_USBH_HCI_CAPABILITIES</td>
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<div class="textblock"><p>USB Host HCI (OHCI/EHCI) Driver Capabilities. </p>
<p>A USB Host HCI (OHCI/EHCI) driver can be implemented with different capabilities. The data fields of this structure encode the capabilities implemented by this driver.</p>
<p><b>Returned by:</b></p>
<ul>
<li><a class="el" href="group__usbh__hci__gr.html#gae607c49ca97202500631473a901e8c2b">ARM_USBH_HCI_GetCapabilities</a></li>
</ul>
<dl class="section note"><dt>Note</dt><dd>The struct must remain unchanged. </dd></dl>
</div><table class="fieldtable">
<tr><th colspan="3">Data Fields</th></tr>
<tr><td class="fieldtype">
<a class="anchor" id="ac37c09b54483c2a1e41fa8a976721fc4"></a>uint32_t</td>
<td class="fieldname">
port_mask: 15</td>
<td class="fielddoc">
Root HUB available Ports Mask. </td></tr>
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<h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">ARM_USBH_HCI_Interrupt_t</td>
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<p>Pointer to Interrupt Handler Routine. </p>
<p>Provides the typedef for the interrupt handler <a class="el" href="group__usbh__hci__gr.html#ga79d3c2509ed869c8d7d1485acad7b6c6">ARM_USBH_HCI_Interrupt</a>.</p>
<p><b>Parameter for:</b></p>
<ul>
<li><a class="el" href="group__usbh__hci__gr.html#gabc1392a544cb64491b5ea5ce6590d832">ARM_USBH_HCI_Initialize</a> </li>
</ul>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname"><a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a> ARM_USBH_HCI_GetVersion </td>
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<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
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<p>Get USB Host HCI (OHCI/EHCI) driver version. </p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a></dd></dl>
<p>The function <b>ARM_USBH_HCI_GetVersion</b> returns version information of the driver implementation in <a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a></p>
<ul>
<li>API version is the version of the CMSIS-Driver specification used to implement this driver.</li>
<li>Driver version is source code version of the actual driver implementation.</li>
</ul>
<p>Example: </p>
<div class="fragment"><div class="line"><span class="keyword">extern</span> <a class="code" href="group__usbh__host__gr.html#struct_a_r_m___d_r_i_v_e_r___u_s_b_h" title="Access structure of USB Host Driver.">ARM_DRIVER_USBH</a> Driver_USBH0_HCI;</div>
<div class="line"><a class="code" href="group__usbh__host__gr.html#struct_a_r_m___d_r_i_v_e_r___u_s_b_h" title="Access structure of USB Host Driver.">ARM_DRIVER_USBH</a> *drv_info;</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">void</span> setup_usbh (<span class="keywordtype">void</span>) {</div>
<div class="line"> <a class="code" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n" title="Driver Version.">ARM_DRIVER_VERSION</a> version;</div>
<div class="line"> </div>
<div class="line"> drv_info = &Driver_USBH0_HCI; </div>
<div class="line"> version = drv_info-><a class="code" href="group__usbh__host__gr.html#a8834b281da48583845c044a81566c1b3" title="Pointer to ARM_USBH_GetVersion : Get driver version.">GetVersion</a> ();</div>
<div class="line"> <span class="keywordflow">if</span> (version.<a class="code" href="group__common__drv__gr.html#ad180da20fbde1d3dafc074af87c19540" title="API version.">api</a> < 0x10A) { <span class="comment">// requires at minimum API version 1.10 or higher</span></div>
<div class="line"> <span class="comment">// error handling</span></div>
<div class="line"> <span class="keywordflow">return</span>;</div>
<div class="line"> }</div>
<div class="line">}</div>
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<td class="memname"><a class="el" href="group__usbh__hci__gr.html#struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s">ARM_USBH_HCI_CAPABILITIES</a> ARM_USBH_HCI_GetCapabilities </td>
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<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
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<p>Get driver capabilities. </p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__usbh__hci__gr.html#struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s">ARM_USBH_HCI_CAPABILITIES</a></dd></dl>
<p>The function <b>ARM_USBH_HCI_GetCapabilities</b> returns information about capabilities in this driver implementation. The data fields of the structure <a class="el" href="group__usbh__hci__gr.html#struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s">ARM_USBH_HCI_CAPABILITIES</a> encode various capabilities, for example available HUB ports.</p>
<p>Example: </p>
<div class="fragment"><div class="line"><span class="keyword">extern</span> <a class="code" href="group__usbh__hci__gr.html#struct_a_r_m___d_r_i_v_e_r___u_s_b_h___h_c_i" title="Access structure of USB Host HCI (OHCI/EHCI) Driver.">ARM_DRIVER_USBH_HCI</a> Driver_USBH0_HCI;</div>
<div class="line"><a class="code" href="group__usbh__hci__gr.html#struct_a_r_m___d_r_i_v_e_r___u_s_b_h___h_c_i" title="Access structure of USB Host HCI (OHCI/EHCI) Driver.">ARM_DRIVER_USBH_HCI</a> *drv_info;</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">void</span> read_capabilities (<span class="keywordtype">void</span>) {</div>
<div class="line"> <a class="code" href="group__usbh__hci__gr.html#struct_a_r_m___u_s_b_h___h_c_i___c_a_p_a_b_i_l_i_t_i_e_s" title="USB Host HCI (OHCI/EHCI) Driver Capabilities.">ARM_USBH_HCI_CAPABILITIES</a> drv_capabilities;</div>
<div class="line"> </div>
<div class="line"> drv_info = &Driver_USBH0_HCI; </div>
<div class="line"> drv_capabilities = drv_info-><a class="code" href="group__usbh__hci__gr.html#a7a41769405bb3bb4cc9eaba26cf220d4" title="Pointer to ARM_USBH_HCI_GetCapabilities : Get driver capabilities.">GetCapabilities</a> ();</div>
<div class="line"> <span class="comment">// interrogate capabilities</span></div>
<div class="line"> </div>
<div class="line">}</div>
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<td class="memname">int32_t ARM_USBH_HCI_Initialize </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__usbh__hci__gr.html#gac60df9d1f2b3a769f2c30141800a9806">ARM_USBH_HCI_Interrupt_t</a> * </td>
<td class="paramname"><em>cb_interrupt</em></td><td>)</td>
<td></td>
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</table>
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<p>Initialize USB Host HCI (OHCI/EHCI) Interface. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">cb_interrupt</td><td>Pointer to Interrupt Handler Routine </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>The function <b>ARM_USBH_HCI_Initialize</b> initializes the USB Host HCI (OHCI/EHCI) interface. It is called when the middleware component starts operation.</p>
<p>The function performs the following operations:</p>
<ul>
<li>Initializes the resources needed for the USBH interface.</li>
<li>Registers the <a class="el" href="group__usbh__hci__gr.html#ga79d3c2509ed869c8d7d1485acad7b6c6">ARM_USBH_HCI_Interrupt</a> interrupt handler.</li>
</ul>
<p>The parameter <em>cb_interrupt</em> is a pointer to the interrupt routine of the OHCI/EHCI peripheral that needs to be registered. This function is called as ECHI Interrupt Service Handler.</p>
<p><b>Example:</b> </p>
<ul>
<li>see <a class="el" href="group__usbh__interface__gr.html">USB Host Interface</a> - Driver Functions </li>
</ul>
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<td class="memname">int32_t ARM_USBH_HCI_Uninitialize </td>
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<td class="paramname"></td><td>)</td>
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<p>De-initialize USB Host HCI (OHCI/EHCI) Interface. </p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>The function <a class="el" href="group__usbh__hci__gr.html#gaacb68fdf201cdb1846b31642a760f041">ARM_USBH_HCI_Uninitialize</a> de-initializes the resources of USB Host HCI (OHCI/EHCI) interface.</p>
<p>It is called when the middleware component stops operation and releases the software resources used by the interface. </p>
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<td class="memname">int32_t ARM_USBH_HCI_PowerControl </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a> </td>
<td class="paramname"><em>state</em></td><td>)</td>
<td></td>
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<p>Control USB Host HCI (OHCI/EHCI) Interface Power. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">state</td><td>Power state </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>The function <b>ARM_USBH_HCI_PowerControl</b> operates the power modes of the USB Host HCI (OHCI/EHCI) interface.</p>
<p>The parameter <em>state</em> sets the operation and can have the following values:</p>
<ul>
<li><a class="el" href="_driver___common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5abed52b77a9ce4775570e44a842b1295e">ARM_POWER_FULL</a> : set-up peripheral for data transfers, enable interrupts (NVIC) and optionally DMA. Can be called multiple times. If the peripheral is already in this mode the function performs no operation and returns with <a class="el" href="group__execution__status.html#ga85752c5de59e8adeb001e35ff5be6be7">ARM_DRIVER_OK</a>.</li>
<li><a class="el" href="_driver___common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5a9ef9e57cbcc948d0e22314e73dc8c434">ARM_POWER_LOW</a> : may use power saving. Returns <a class="el" href="group__execution__status.html#ga2efa59e480d82697795439220e6884e4">ARM_DRIVER_ERROR_UNSUPPORTED</a> when not implemented.</li>
<li><a class="el" href="_driver___common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5ab6f5becc85ebd51c3dd2524a95d2ca35">ARM_POWER_OFF</a> : terminates any pending data transfers, disables peripheral, disables related interrupts and DMA.</li>
</ul>
<p>Refer to <a class="el" href="_theory_operation.html#CallSequence">Function Call Sequence</a> for more information. </p>
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<td class="memname">int32_t ARM_USBH_HCI_PortVbusOnOff </td>
<td>(</td>
<td class="paramtype">uint8_t </td>
<td class="paramname"><em>port</em>, </td>
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<td class="paramtype">bool </td>
<td class="paramname"><em>vbus</em> </td>
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<p>USB Host HCI (OHCI/EHCI) Root HUB Port VBUS on/off. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">port</td><td>Root HUB Port Number </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">vbus</td><td><ul>
<li><b>false</b> VBUS off</li>
<li><b>true</b> VBUS on </li>
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<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>The function <b>ARM_USBH_HCI_PortVbusOnOff</b> controls the VBUS signal of the specified port. Most HCI complained USB Host controllers do not require this optional function. It is only required when a external VBUS interface (for example via I/O pin) is required. </p>
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<td class="memname">void ARM_USBH_HCI_Interrupt </td>
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<p>USB Host HCI Interrupt Handler. </p>
<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
<p>The function <b>ARM_USBH_HCI_Interrupt</b> is called from the USBH HCI Interrupt Handler. </p>
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