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<section id="usb-ip">
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<h1>USB IP 勘误<a class="headerlink" href="#usb-ip" title="Link to this heading"></a></h1>
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<p>本节主要对已经支持的 USB IP 在不同厂家上的一些差别说明并进行校对。欢迎补充。</p>
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<section id="fsdev">
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<h2>FSDEV<a class="headerlink" href="#fsdev" title="Link to this heading"></a></h2>
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<p>FSDEV 仅支持从机。这个 ip 不同厂家基本都是基于标准的 usb 寄存器，有些芯片可能还需要配置 <cite>PMA_ACCESS</cite> 的值，默认为2。下表为具体芯片相关宏的修改值：</p>
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<table class="docutils align-default">
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<colgroup>
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<col style="width: 21.4%" />
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<col style="width: 14.3%" />
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<col style="width: 21.4%" />
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<col style="width: 21.4%" />
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<col style="width: 21.4%" />
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</colgroup>
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<thead>
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<tr class="row-odd"><th class="head"><p>芯片</p></th>
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<th class="head"><p>中断名</p></th>
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<th class="head"><p>寄存器地址</p></th>
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<th class="head"><p>CONFIG_USBDEV_EP_NUM</p></th>
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<th class="head"><p>PMA_ACCESS</p></th>
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</tr>
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</thead>
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<tbody>
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<tr class="row-even"><td><p>STM32F0</p></td>
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<td><p>USB_IRQHandler</p></td>
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<td><p>0x40005C00</p></td>
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<td><p>8</p></td>
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<td><p>1</p></td>
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</tr>
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<tr class="row-odd"><td><p>STM32F1</p></td>
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<td><p>USB_LP_CAN1_RX0_IRQHandler</p></td>
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<td><p>同上</p></td>
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<td><p>同上</p></td>
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<td><p>同上</p></td>
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</tr>
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<tr class="row-even"><td><p>STM32F3</p></td>
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<td><p>USB_LP_CAN_RX0_IRQHandler</p></td>
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<td><p>同上</p></td>
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<td><p>同上</p></td>
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<td><p>1 or 2</p></td>
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</tr>
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<tr class="row-odd"><td><p>STM32L0</p></td>
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<td><p>USB_IRQHandler</p></td>
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<td><p>同上</p></td>
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<td><p>同上</p></td>
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<td><p>1</p></td>
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</tr>
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<tr class="row-even"><td><p>STM32L1</p></td>
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<td><p>USB_LP_IRQHandler</p></td>
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<td><p>同上</p></td>
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<td><p>同上</p></td>
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<td><p>2</p></td>
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</tr>
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<tr class="row-odd"><td><p>STM32L4</p></td>
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<td><p>USB_IRQHandler</p></td>
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<td><p>同上</p></td>
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<td><p>同上</p></td>
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<td><p>1</p></td>
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</tr>
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</tbody>
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</table>
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<p>fsdev 需要外置 dp 上拉才能使用，有些芯片可能是接上拉电阻，有些芯片可能是设置寄存器，举例如下：</p>
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<div class="highlight-C notranslate"><div class="highlight"><pre><span></span><span class="n">USB</span><span class="o">-></span><span class="n">BCDR</span><span class="w"> </span><span class="o">|=</span><span class="w"> </span><span class="p">(</span><span class="kt">uint16_t</span><span class="p">)</span><span class="n">USB_BCDR_DPPU</span><span class="p">;</span>
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</pre></div>
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</div>
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<p>如果不存在 BCDR 寄存器，则一般是配置如下，并且该设置需要配置到 <cite>usb_dc_low_level_init</cite> 中或者 <cite>usb_dc_init</cite> 最后都行：</p>
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<div class="highlight-C notranslate"><div class="highlight"><pre><span></span><span class="cm">/* Pull up controller register */</span>
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<span class="cp">#define DP_CTRL ((__IO unsigned*)(0x40001820))</span>
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<span class="cp">#define _EnPortPullup() (*DP_CTRL = (*DP_CTRL) | 0x10000000);</span>
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<span class="cp">#define _DisPortPullup() (*DP_CTRL = (*DP_CTRL) & 0xEFFFFFFF);</span>
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</pre></div>
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</div>
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</section>
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<section id="musb">
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<h2>MUSB<a class="headerlink" href="#musb" title="Link to this heading"></a></h2>
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<p>MUSB IP 支持主从，并且由 <strong>mentor</strong> 定义了一套标准的寄存器偏移，如果非标准，则需要实现以下宏的偏移，以标准为例：</p>
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<div class="highlight-C notranslate"><div class="highlight"><pre><span></span><span class="cp">#define MUSB_FADDR_OFFSET 0x00</span>
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<span class="cp">#define MUSB_POWER_OFFSET 0x01</span>
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<span class="cp">#define MUSB_TXIS_OFFSET 0x02</span>
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<span class="cp">#define MUSB_RXIS_OFFSET 0x04</span>
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<span class="cp">#define MUSB_TXIE_OFFSET 0x06</span>
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<span class="cp">#define MUSB_RXIE_OFFSET 0x08</span>
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<span class="cp">#define MUSB_IS_OFFSET 0x0A</span>
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<span class="cp">#define MUSB_IE_OFFSET 0x0B</span>
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<span class="cp">#define MUSB_EPIDX_OFFSET 0x0E</span>
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<span class="cp">#define MUSB_IND_TXMAP_OFFSET 0x10</span>
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<span class="cp">#define MUSB_IND_TXCSRL_OFFSET 0x12</span>
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<span class="cp">#define MUSB_IND_TXCSRH_OFFSET 0x13</span>
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<span class="cp">#define MUSB_IND_RXMAP_OFFSET 0x14</span>
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<span class="cp">#define MUSB_IND_RXCSRL_OFFSET 0x16</span>
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<span class="cp">#define MUSB_IND_RXCSRH_OFFSET 0x17</span>
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<span class="cp">#define MUSB_IND_RXCOUNT_OFFSET 0x18</span>
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<span class="cp">#define MUSB_IND_TXTYPE_OFFSET 0x1A</span>
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<span class="cp">#define MUSB_IND_TXINTERVAL_OFFSET 0x1B</span>
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<span class="cp">#define MUSB_IND_RXTYPE_OFFSET 0x1C</span>
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<span class="cp">#define MUSB_IND_RXINTERVAL_OFFSET 0x1D</span>
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<span class="cp">#define MUSB_FIFO_OFFSET 0x20</span>
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<span class="cp">#define MUSB_DEVCTL_OFFSET 0x60</span>
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<span class="cp">#define MUSB_TXFIFOSZ_OFFSET 0x62</span>
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<span class="cp">#define MUSB_RXFIFOSZ_OFFSET 0x63</span>
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<span class="cp">#define MUSB_TXFIFOADD_OFFSET 0x64</span>
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<span class="cp">#define MUSB_RXFIFOADD_OFFSET 0x66</span>
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<span class="cp">#define MUSB_TXFUNCADDR0_OFFSET 0x80</span>
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<span class="cp">#define MUSB_TXHUBADDR0_OFFSET 0x82</span>
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<span class="cp">#define MUSB_TXHUBPORT0_OFFSET 0x83</span>
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<span class="cp">#define MUSB_TXFUNCADDRx_OFFSET 0x88</span>
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<span class="cp">#define MUSB_TXHUBADDRx_OFFSET 0x8A</span>
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<span class="cp">#define MUSB_TXHUBPORTx_OFFSET 0x8B</span>
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<span class="cp">#define MUSB_RXFUNCADDRx_OFFSET 0x8C</span>
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<span class="cp">#define MUSB_RXHUBADDRx_OFFSET 0x8E</span>
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<span class="cp">#define MUSB_RXHUBPORTx_OFFSET 0x8F</span>
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<span class="cp">#define USB_TXADDR_BASE(ep_idx) (USB_BASE + MUSB_TXFUNCADDR0_OFFSET + 0x8 * ep_idx)</span>
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<span class="cp">#define USB_TXHUBADDR_BASE(ep_idx) (USB_BASE + MUSB_TXFUNCADDR0_OFFSET + 0x8 * ep_idx + 2)</span>
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<span class="cp">#define USB_TXHUBPORT_BASE(ep_idx) (USB_BASE + MUSB_TXFUNCADDR0_OFFSET + 0x8 * ep_idx + 3)</span>
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<span class="cp">#define USB_RXADDR_BASE(ep_idx) (USB_BASE + MUSB_TXFUNCADDR0_OFFSET + 0x8 * ep_idx + 4)</span>
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<span class="cp">#define USB_RXHUBADDR_BASE(ep_idx) (USB_BASE + MUSB_TXFUNCADDR0_OFFSET + 0x8 * ep_idx + 6)</span>
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<span class="cp">#define USB_RXHUBPORT_BASE(ep_idx) (USB_BASE + MUSB_TXFUNCADDR0_OFFSET + 0x8 * ep_idx + 7)</span>
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</pre></div>
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</div>
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<p>下表为具体芯片从机相关宏的修改值：</p>
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<table class="docutils align-default">
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<colgroup>
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<col style="width: 25.0%" />
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<col style="width: 25.0%" />
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<col style="width: 25.0%" />
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<col style="width: 25.0%" />
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</colgroup>
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<thead>
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<tr class="row-odd"><th class="head"><p>芯片</p></th>
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<th class="head"><p>中断名</p></th>
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<th class="head"><p>寄存器地址</p></th>
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<th class="head"><p>CONFIG_USBDEV_EP_NUM</p></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr class="row-even"><td><p>ES32F3xx</p></td>
|
||
<td><p>USB_INT_Handler</p></td>
|
||
<td><p>0x40086400</p></td>
|
||
<td><p>5</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p>MSP432Ex</p></td>
|
||
<td><p>同上</p></td>
|
||
<td><p>0x40050000</p></td>
|
||
<td><p>同上</p></td>
|
||
</tr>
|
||
<tr class="row-even"><td><p>F1C100S</p></td>
|
||
<td><p>USB_INT_Handler</p></td>
|
||
<td><p>0x01c13000</p></td>
|
||
<td><p>4</p></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>下表为具体芯片主机相关宏的修改值：</p>
|
||
<table class="docutils align-default">
|
||
<colgroup>
|
||
<col style="width: 25.0%" />
|
||
<col style="width: 25.0%" />
|
||
<col style="width: 25.0%" />
|
||
<col style="width: 25.0%" />
|
||
</colgroup>
|
||
<thead>
|
||
<tr class="row-odd"><th class="head"><p>芯片</p></th>
|
||
<th class="head"><p>中断名</p></th>
|
||
<th class="head"><p>寄存器地址</p></th>
|
||
<th class="head"><p>CONIFG_USB_MUSB_EP_NUM</p></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr class="row-even"><td><p>ES32F3xx</p></td>
|
||
<td><p>USB_INT_Handler</p></td>
|
||
<td><p>0x40086400</p></td>
|
||
<td><p>5</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p>MSP432Ex</p></td>
|
||
<td><p>同上</p></td>
|
||
<td><p>0x40050000</p></td>
|
||
<td><p>同上</p></td>
|
||
</tr>
|
||
<tr class="row-even"><td><p>F1C100S</p></td>
|
||
<td><p>USB_INT_Handler</p></td>
|
||
<td><p>0x01c13000</p></td>
|
||
<td><p>4</p></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
<section id="dwc2">
|
||
<h2>DWC2<a class="headerlink" href="#dwc2" title="Link to this heading"></a></h2>
|
||
<p>DWC2 IP 支持主从，并且由 <strong>synopsys</strong> 定义了一套标准的寄存器偏移。大部分厂家都使用标准的寄存器偏移(除了 GCCFG(GGPIO)寄存器)，所以如果是从机仅需要修改 <cite>中断名</cite> 、 <cite>USB_BASE</cite> 、 <cite>CONFIG_USBDEV_EP_NUM</cite> ，主机仅需要修改 <cite>中断名</cite> 、 <cite>USB_BASE</cite> 即可。</p>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">Note</p>
|
||
<p>GCCFG(GGPIO) 根据不同的厂家设置不同，会影响 usb 枚举，需要根据厂家提供的手册进行配置,并实现 usbd_get_dwc2_gccfg_conf 和 usbh_get_dwc2_gccfg_conf 函数，填充相应需要使能的bit</p>
|
||
</div>
|
||
<div class="admonition caution">
|
||
<p class="admonition-title">Caution</p>
|
||
<p>主机 port 仅支持有 dma 功能的 dwc2 ip(代码中会判断当前 ip 是否支持), 如果不支持 dma 模式，则无法使用。</p>
|
||
</div>
|
||
<p>下表为具体芯片从机相关宏的修改值：</p>
|
||
<table class="docutils align-default">
|
||
<colgroup>
|
||
<col style="width: 25.0%" />
|
||
<col style="width: 25.0%" />
|
||
<col style="width: 25.0%" />
|
||
<col style="width: 25.0%" />
|
||
</colgroup>
|
||
<thead>
|
||
<tr class="row-odd"><th class="head"><p>芯片</p></th>
|
||
<th class="head"><p>中断名</p></th>
|
||
<th class="head"><p>寄存器地址</p></th>
|
||
<th class="head"><p>CONFIG_USBDEV_EP_NUM</p></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr class="row-even"><td><p>STM32 非 H7</p></td>
|
||
<td><p>OTG_FS_IRQHandler/OTG_HS_IRQHandler</p></td>
|
||
<td><p>0x50000000UL/0x40040000UL</p></td>
|
||
<td><p>5</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p>STM32 H7</p></td>
|
||
<td><p>同上</p></td>
|
||
<td><p>0x40080000UL/0x40040000UL</p></td>
|
||
<td><p>9</p></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>下表为具体芯片主机相关宏的修改值：</p>
|
||
<table class="docutils align-default">
|
||
<colgroup>
|
||
<col style="width: 25.0%" />
|
||
<col style="width: 25.0%" />
|
||
<col style="width: 25.0%" />
|
||
<col style="width: 25.0%" />
|
||
</colgroup>
|
||
<thead>
|
||
<tr class="row-odd"><th class="head"><p>芯片</p></th>
|
||
<th class="head"><p>中断名</p></th>
|
||
<th class="head"><p>寄存器地址</p></th>
|
||
<th class="head"><p>CONFIG_USBHOST_PIPE_NUM</p></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr class="row-even"><td><p>STM32 全系列</p></td>
|
||
<td><p>OTG_HS_IRQHandler</p></td>
|
||
<td><p>0x40040000UL</p></td>
|
||
<td><p>12</p></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
<section id="ehci">
|
||
<h2>EHCI<a class="headerlink" href="#ehci" title="Link to this heading"></a></h2>
|
||
<p>EHCI 是 intel 制定的标准主机控制器接口，任何厂家都必须实现 EHCI 中定义的寄存器以及寄存器的功能。EHCI 相关配置宏如下：</p>
|
||
<div class="highlight-C notranslate"><div class="highlight"><pre><span></span><span class="cp">#define CONFIG_USB_EHCI_HCCR_OFFSET (0x0)</span>
|
||
<span class="cp">#define CONFIG_USB_EHCI_FRAME_LIST_SIZE 1024</span>
|
||
<span class="cp">#define CONFIG_USB_EHCI_QH_NUM CONFIG_USBHOST_PIPE_NUM</span>
|
||
<span class="cp">#define CONFIG_USB_EHCI_QTD_NUM 3</span>
|
||
<span class="cp">#define CONFIG_USB_EHCI_ITD_NUM 20</span>
|
||
<span class="c1">//是否关闭保留寄存器的占位，默认保留 9 个双字的占位</span>
|
||
<span class="cp">#define CONFIG_USB_EHCI_HCOR_RESERVED_DISABLE</span>
|
||
<span class="c1">//是否使能 configflag 寄存器中的 bit0</span>
|
||
<span class="cp">#define CONFIG_USB_EHCI_CONFIGFLAG</span>
|
||
<span class="cp">#define CONFIG_USB_EHCI_ISO</span>
|
||
<span class="c1">// 不带 tt的 IP 一般使用OHCI</span>
|
||
<span class="cp">#define CONFIG_USB_EHCI_WITH_OHCI</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>同时由于 EHCI 只是主机控制器并且只支持高速，一般配合一个 otg 控制器和一个低速全速兼容控制单元，而速度的获取一般是在 otg 寄存器中，所以需要用户实现 <cite>usbh_get_port_speed</cite> 函数。</p>
|
||
</section>
|
||
</section>
|
||
|
||
|
||
</div>
|
||
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|
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