merge with mainline
This commit is contained in:
BVK Chaitanya
commit
baea17662b
31 changed files with 2794 additions and 319 deletions
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@ -18,6 +18,7 @@
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*/
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#include <grub/dl.h>
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#include <grub/pci.h>
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#include <grub/mm.h>
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#include <grub/misc.h>
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#include <grub/usb.h>
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@ -29,30 +30,59 @@ grub_usb_control_msg (grub_usb_device_t dev,
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grub_uint8_t request,
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grub_uint16_t value,
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grub_uint16_t index,
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grub_size_t size, char *data)
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grub_size_t size0, char *data_in)
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{
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int i;
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grub_usb_transfer_t transfer;
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int datablocks;
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struct grub_usb_packet_setup setupdata;
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volatile struct grub_usb_packet_setup *setupdata;
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grub_uint32_t setupdata_addr;
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grub_usb_err_t err;
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unsigned int max;
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struct grub_pci_dma_chunk *data_chunk, *setupdata_chunk;
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volatile char *data;
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grub_uint32_t data_addr;
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grub_size_t size = size0;
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/* FIXME: avoid allocation any kind of buffer in a first place. */
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data_chunk = grub_memalign_dma32 (128, size ? : 16);
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if (!data_chunk)
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return GRUB_USB_ERR_INTERNAL;
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data = grub_dma_get_virt (data_chunk);
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data_addr = grub_dma_get_phys (data_chunk);
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grub_memcpy ((char *) data, data_in, size);
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grub_dprintf ("usb",
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"control: reqtype=0x%02x req=0x%02x val=0x%02x idx=0x%02x size=%d\n",
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reqtype, request, value, index, size);
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/* Create a transfer. */
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transfer = grub_malloc (sizeof (struct grub_usb_transfer));
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transfer = grub_malloc (sizeof (*transfer));
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if (! transfer)
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return grub_errno;
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{
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grub_dma_free (data_chunk);
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return grub_errno;
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}
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setupdata_chunk = grub_memalign_dma32 (32, sizeof (*setupdata));
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if (! setupdata_chunk)
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{
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grub_free (transfer);
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grub_dma_free (data_chunk);
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return grub_errno;
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}
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setupdata = grub_dma_get_virt (setupdata_chunk);
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setupdata_addr = grub_dma_get_phys (setupdata_chunk);
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/* Determine the maximum packet size. */
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if (dev->initialized)
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if (dev->descdev.maxsize0)
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max = dev->descdev.maxsize0;
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else
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max = 64;
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grub_dprintf ("usb", "transfer = %p, dev = %p\n", transfer, dev);
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datablocks = (size + max - 1) / max;
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/* XXX: Discriminate between different types of control
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@ -71,18 +101,20 @@ grub_usb_control_msg (grub_usb_device_t dev,
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if (! transfer->transactions)
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{
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grub_free (transfer);
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grub_dma_free (setupdata_chunk);
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grub_dma_free (data_chunk);
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return grub_errno;
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}
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/* Build a Setup packet. XXX: Endianness. */
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setupdata.reqtype = reqtype;
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setupdata.request = request;
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setupdata.value = value;
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setupdata.index = index;
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setupdata.length = size;
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transfer->transactions[0].size = sizeof (setupdata);
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setupdata->reqtype = reqtype;
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setupdata->request = request;
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setupdata->value = value;
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setupdata->index = index;
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setupdata->length = size;
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transfer->transactions[0].size = sizeof (*setupdata);
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transfer->transactions[0].pid = GRUB_USB_TRANSFER_TYPE_SETUP;
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transfer->transactions[0].data = (char *) &setupdata;
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transfer->transactions[0].data = setupdata_addr;
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transfer->transactions[0].toggle = 0;
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/* Now the data... XXX: Is this the right way to transfer control
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@ -99,14 +131,14 @@ grub_usb_control_msg (grub_usb_device_t dev,
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tr->pid = GRUB_USB_TRANSFER_TYPE_IN;
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else
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tr->pid = GRUB_USB_TRANSFER_TYPE_OUT;
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tr->data = &data[i * max];
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tr->data = data_addr + i * max;
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size -= max;
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}
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/* End with an empty OUT transaction. */
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transfer->transactions[datablocks + 1].size = 0;
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transfer->transactions[datablocks + 1].data = NULL;
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if (reqtype & 128)
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transfer->transactions[datablocks + 1].data = 0;
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if ((reqtype & 128) && datablocks)
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transfer->transactions[datablocks + 1].pid = GRUB_USB_TRANSFER_TYPE_OUT;
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else
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transfer->transactions[datablocks + 1].pid = GRUB_USB_TRANSFER_TYPE_IN;
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@ -116,14 +148,19 @@ grub_usb_control_msg (grub_usb_device_t dev,
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err = dev->controller.dev->transfer (&dev->controller, transfer);
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grub_free (transfer->transactions);
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grub_free (transfer);
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grub_dma_free (data_chunk);
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grub_dma_free (setupdata_chunk);
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grub_memcpy (data_in, (char *) data, size0);
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return err;
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}
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static grub_usb_err_t
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grub_usb_bulk_readwrite (grub_usb_device_t dev,
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int endpoint, grub_size_t size, char *data,
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int endpoint, grub_size_t size0, char *data_in,
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grub_transfer_type_t type)
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{
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int i;
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@ -132,6 +169,19 @@ grub_usb_bulk_readwrite (grub_usb_device_t dev,
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unsigned int max;
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grub_usb_err_t err;
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int toggle = dev->toggle[endpoint];
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volatile char *data;
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grub_uint32_t data_addr;
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struct grub_pci_dma_chunk *data_chunk;
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grub_size_t size = size0;
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/* FIXME: avoid allocation any kind of buffer in a first place. */
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data_chunk = grub_memalign_dma32 (128, size);
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if (!data_chunk)
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return GRUB_USB_ERR_INTERNAL;
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data = grub_dma_get_virt (data_chunk);
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data_addr = grub_dma_get_phys (data_chunk);
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if (type == GRUB_USB_TRANSFER_TYPE_OUT)
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grub_memcpy ((char *) data, data_in, size);
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/* Use the maximum packet size given in the endpoint descriptor. */
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if (dev->initialized)
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@ -150,16 +200,20 @@ grub_usb_bulk_readwrite (grub_usb_device_t dev,
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/* Create a transfer. */
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transfer = grub_malloc (sizeof (struct grub_usb_transfer));
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if (! transfer)
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return grub_errno;
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{
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grub_dma_free (data_chunk);
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return grub_errno;
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}
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datablocks = ((size + max - 1) / max);
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transfer->transcnt = datablocks;
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transfer->size = size - 1;
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transfer->endpoint = endpoint;
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transfer->endpoint = endpoint & 15;
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transfer->devaddr = dev->addr;
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transfer->type = GRUB_USB_TRANSACTION_TYPE_BULK;
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transfer->max = max;
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transfer->dev = dev;
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transfer->last_trans = -1; /* Reset index of last processed transaction (TD) */
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/* Allocate an array of transfer data structures. */
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transfer->transactions = grub_malloc (transfer->transcnt
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@ -167,6 +221,7 @@ grub_usb_bulk_readwrite (grub_usb_device_t dev,
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if (! transfer->transactions)
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{
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grub_free (transfer);
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grub_dma_free (data_chunk);
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return grub_errno;
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}
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@ -181,16 +236,27 @@ grub_usb_bulk_readwrite (grub_usb_device_t dev,
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tr->toggle = toggle;
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toggle = toggle ? 0 : 1;
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tr->pid = type;
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tr->data = &data[i * max];
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tr->data = data_addr + i * max;
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size -= tr->size;
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}
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err = dev->controller.dev->transfer (&dev->controller, transfer);
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/* We must remember proper toggle value even if some transactions
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* were not processed - correct value should be inversion of last
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* processed transaction (TD). */
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if (transfer->last_trans >= 0)
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toggle = transfer->transactions[transfer->last_trans].toggle ? 0 : 1;
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else
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toggle = dev->toggle[endpoint]; /* Nothing done, take original */
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grub_dprintf ("usb", "toggle=%d\n", toggle);
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dev->toggle[endpoint] = toggle;
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grub_free (transfer->transactions);
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grub_free (transfer);
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grub_dma_free (data_chunk);
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if (type == GRUB_USB_TRANSFER_TYPE_IN)
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grub_memcpy (data_in, (char *) data, size0);
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return err;
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}
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