diff options
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/dm96xx.c')
| -rw-r--r-- | qemu/roms/ipxe/src/drivers/net/dm96xx.c | 671 |
1 files changed, 0 insertions, 671 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/dm96xx.c b/qemu/roms/ipxe/src/drivers/net/dm96xx.c deleted file mode 100644 index 58d8dd964..000000000 --- a/qemu/roms/ipxe/src/drivers/net/dm96xx.c +++ /dev/null @@ -1,671 +0,0 @@ -/* - * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <string.h> -#include <unistd.h> -#include <errno.h> -#include <ipxe/ethernet.h> -#include <ipxe/usb.h> -#include <ipxe/usbnet.h> -#include "dm96xx.h" - -/** @file - * - * Davicom DM96xx USB Ethernet driver - * - */ - -/****************************************************************************** - * - * Register operations - * - ****************************************************************************** - */ - -/** - * Reset device - * - * @v dm96xx DM96xx device - * @ret rc Return status code - */ -static int dm96xx_reset ( struct dm96xx_device *dm96xx ) { - int ncr; - int rc; - - /* Reset device */ - if ( ( rc = dm96xx_write_register ( dm96xx, DM96XX_NCR, - DM96XX_NCR_RST ) ) != 0 ) { - DBGC ( dm96xx, "DM96XX %p could not reset: %s\n", - dm96xx, strerror ( rc ) ); - return rc; - } - - /* Wait for reset to complete */ - udelay ( DM96XX_RESET_DELAY_US ); - - /* Check that reset has completed */ - ncr = dm96xx_read_register ( dm96xx, DM96XX_NCR ); - if ( ncr < 0 ) { - rc = ncr; - DBGC ( dm96xx, "DM96XX %p failed to reset: %s\n", - dm96xx, strerror ( rc ) ); - return rc; - } - if ( ncr & DM96XX_NCR_RST ) { - DBGC ( dm96xx, "DM96XX %p failed to reset (NCR=%#02x)\n", - dm96xx, ncr ); - return -EIO; - } - - return 0; -} - -/** - * Read MAC address - * - * @v dm96xx DM96xx device - * @v mac MAC address to fill in - * @ret rc Return status code - */ -static int dm96xx_read_mac ( struct dm96xx_device *dm96xx, uint8_t *mac ) { - int rc; - - /* Read MAC address */ - if ( ( rc = dm96xx_read_registers ( dm96xx, DM96XX_PAR, mac, - ETH_ALEN ) ) != 0 ) { - DBGC ( dm96xx, "DM96XX %p could not read MAC address: %s\n", - dm96xx, strerror ( rc ) ); - return rc; - } - - return 0; -} - -/** - * Write MAC address - * - * @v dm96xx DM96xx device - * @v mac MAC address - * @ret rc Return status code - */ -static int dm96xx_write_mac ( struct dm96xx_device *dm96xx, uint8_t *mac ) { - int rc; - - /* Write MAC address */ - if ( ( rc = dm96xx_write_registers ( dm96xx, DM96XX_PAR, mac, - ETH_ALEN ) ) != 0 ) { - DBGC ( dm96xx, "DM96XX %p could not write MAC address: %s\n", - dm96xx, strerror ( rc ) ); - return rc; - } - - return 0; -} - -/** - * Update link status based on network status register - * - * @v dm96xx DM96xx device - * @v nsr Network status register - */ -static void dm96xx_link_nsr ( struct dm96xx_device *dm96xx, unsigned int nsr ) { - struct net_device *netdev = dm96xx->netdev; - - if ( nsr & DM96XX_NSR_LINKST ) { - if ( ! netdev_link_ok ( netdev ) ) - netdev_link_up ( netdev ); - } else { - if ( netdev_link_ok ( netdev ) ) - netdev_link_down ( netdev ); - } -} - -/** - * Get link status - * - * @v dm96xx DM96xx device - * @ret rc Return status code - */ -static int dm96xx_check_link ( struct dm96xx_device *dm96xx ) { - int nsr; - int rc; - - /* Read network status register */ - nsr = dm96xx_read_register ( dm96xx, DM96XX_NSR ); - if ( nsr < 0 ) { - rc = nsr; - DBGC ( dm96xx, "DM96XX %p could not read network status: %s\n", - dm96xx, strerror ( rc ) ); - return rc; - } - - /* Update link status */ - dm96xx_link_nsr ( dm96xx, nsr ); - - return 0; -} - -/** - * Set DM9601-compatible RX header mode - * - * @v dm96xx DM96xx device - * @ret rc Return status code - */ -static int dm96xx_rx_mode ( struct dm96xx_device *dm96xx ) { - int chipr; - int mode_ctl; - int rc; - - /* Get chip revision */ - chipr = dm96xx_read_register ( dm96xx, DM96XX_CHIPR ); - if ( chipr < 0 ) { - rc = chipr; - DBGC ( dm96xx, "DM96XX %p could not read chip revision: %s\n", - dm96xx, strerror ( rc ) ); - return rc; - } - - /* Do nothing if device is a DM9601 anyway */ - if ( chipr == DM96XX_CHIPR_9601 ) - return 0; - - /* Read current mode control */ - mode_ctl = dm96xx_read_register ( dm96xx, DM96XX_MODE_CTL ); - if ( mode_ctl < 0 ) { - rc = mode_ctl; - DBGC ( dm96xx, "DM96XX %p could not read mode control: %s\n", - dm96xx, strerror ( rc ) ); - return rc; - } - - /* Write mode control */ - mode_ctl &= ~DM96XX_MODE_CTL_MODE; - if ( ( rc = dm96xx_write_register ( dm96xx, DM96XX_MODE_CTL, - mode_ctl ) ) != 0 ) { - DBGC ( dm96xx, "DM96XX %p could not write mode control: %s\n", - dm96xx, strerror ( rc ) ); - return rc; - } - - return 0; -} - -/****************************************************************************** - * - * Endpoint operations - * - ****************************************************************************** - */ - -/** - * Complete interrupt transfer - * - * @v ep USB endpoint - * @v iobuf I/O buffer - * @v rc Completion status code - */ -static void dm96xx_intr_complete ( struct usb_endpoint *ep, - struct io_buffer *iobuf, int rc ) { - struct dm96xx_device *dm96xx = container_of ( ep, struct dm96xx_device, - usbnet.intr ); - struct net_device *netdev = dm96xx->netdev; - struct dm96xx_interrupt *intr; - size_t len = iob_len ( iobuf ); - - /* Ignore packets cancelled when the endpoint closes */ - if ( ! ep->open ) - goto done; - - /* Record USB errors against the network device */ - if ( rc != 0 ) { - DBGC ( dm96xx, "DM96XX %p interrupt failed: %s\n", - dm96xx, strerror ( rc ) ); - DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) ); - netdev_rx_err ( netdev, NULL, rc ); - goto done; - } - - /* Extract message header */ - if ( len < sizeof ( *intr ) ) { - DBGC ( dm96xx, "DM96XX %p underlength interrupt:\n", dm96xx ); - DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) ); - netdev_rx_err ( netdev, NULL, -EINVAL ); - goto done; - } - intr = iobuf->data; - - /* Update link status */ - dm96xx_link_nsr ( dm96xx, intr->nsr ); - - done: - /* Free I/O buffer */ - free_iob ( iobuf ); -} - -/** Interrupt endpoint operations */ -static struct usb_endpoint_driver_operations dm96xx_intr_operations = { - .complete = dm96xx_intr_complete, -}; - -/** - * Complete bulk IN transfer - * - * @v ep USB endpoint - * @v iobuf I/O buffer - * @v rc Completion status code - */ -static void dm96xx_in_complete ( struct usb_endpoint *ep, - struct io_buffer *iobuf, int rc ) { - struct dm96xx_device *dm96xx = container_of ( ep, struct dm96xx_device, - usbnet.in ); - struct net_device *netdev = dm96xx->netdev; - struct dm96xx_rx_header *header; - - /* Ignore packets cancelled when the endpoint closes */ - if ( ! ep->open ) { - free_iob ( iobuf ); - return; - } - - /* Record USB errors against the network device */ - if ( rc != 0 ) { - DBGC ( dm96xx, "DM96XX %p bulk IN failed: %s\n", - dm96xx, strerror ( rc ) ); - goto err; - } - - /* Sanity check */ - if ( iob_len ( iobuf ) < ( sizeof ( *header ) + 4 /* CRC */ ) ) { - DBGC ( dm96xx, "DM96XX %p underlength bulk IN\n", dm96xx ); - DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) ); - rc = -EINVAL; - goto err; - } - - /* Strip header and CRC */ - header = iobuf->data; - iob_pull ( iobuf, sizeof ( *header ) ); - iob_unput ( iobuf, 4 /* CRC */ ); - - /* Check status */ - if ( header->rsr & ~DM96XX_RSR_MF ) { - DBGC ( dm96xx, "DM96XX %p receive error %02x:\n", - dm96xx, header->rsr ); - DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) ); - rc = -EIO; - goto err; - } - - /* Hand off to network stack */ - netdev_rx ( netdev, iob_disown ( iobuf ) ); - return; - - err: - /* Hand off to network stack */ - netdev_rx_err ( netdev, iob_disown ( iobuf ), rc ); -} - -/** Bulk IN endpoint operations */ -static struct usb_endpoint_driver_operations dm96xx_in_operations = { - .complete = dm96xx_in_complete, -}; - -/** - * Transmit packet - * - * @v dm96xx DM96xx device - * @v iobuf I/O buffer - * @ret rc Return status code - */ -static int dm96xx_out_transmit ( struct dm96xx_device *dm96xx, - struct io_buffer *iobuf ) { - struct dm96xx_tx_header *header; - size_t len = iob_len ( iobuf ); - int rc; - - /* Prepend header */ - if ( ( rc = iob_ensure_headroom ( iobuf, sizeof ( *header ) ) ) != 0 ) - return rc; - header = iob_push ( iobuf, sizeof ( *header ) ); - header->len = cpu_to_le16 ( len ); - - /* Enqueue I/O buffer */ - if ( ( rc = usb_stream ( &dm96xx->usbnet.out, iobuf, 0 ) ) != 0 ) - return rc; - - return 0; -} - -/** - * Complete bulk OUT transfer - * - * @v ep USB endpoint - * @v iobuf I/O buffer - * @v rc Completion status code - */ -static void dm96xx_out_complete ( struct usb_endpoint *ep, - struct io_buffer *iobuf, int rc ) { - struct dm96xx_device *dm96xx = container_of ( ep, struct dm96xx_device, - usbnet.out ); - struct net_device *netdev = dm96xx->netdev; - - /* Report TX completion */ - netdev_tx_complete_err ( netdev, iobuf, rc ); -} - -/** Bulk OUT endpoint operations */ -static struct usb_endpoint_driver_operations dm96xx_out_operations = { - .complete = dm96xx_out_complete, -}; - -/****************************************************************************** - * - * Network device interface - * - ****************************************************************************** - */ - -/** - * Open network device - * - * @v netdev Network device - * @ret rc Return status code - */ -static int dm96xx_open ( struct net_device *netdev ) { - struct dm96xx_device *dm96xx = netdev->priv; - unsigned int rcr; - int rc; - - /* Set DM9601-compatible RX header mode */ - if ( ( rc = dm96xx_rx_mode ( dm96xx ) ) != 0 ) - goto err_rx_mode; - - /* Write MAC address */ - if ( ( rc = dm96xx_write_mac ( dm96xx, netdev->ll_addr ) ) != 0 ) - goto err_write_mac; - - /* Open USB network device */ - if ( ( rc = usbnet_open ( &dm96xx->usbnet ) ) != 0 ) { - DBGC ( dm96xx, "DM96XX %p could not open: %s\n", - dm96xx, strerror ( rc ) ); - goto err_open; - } - - /* Set receive filters */ - rcr = ( DM96XX_RCR_ALL | DM96XX_RCR_RUNT | DM96XX_RCR_PRMSC | - DM96XX_RCR_RXEN ); - if ( ( rc = dm96xx_write_register ( dm96xx, DM96XX_RCR, rcr ) ) != 0 ) { - DBGC ( dm96xx, "DM96XX %p could not write receive filters: " - "%s\n", dm96xx, strerror ( rc ) ); - goto err_write_rcr; - } - - /* Update link status */ - if ( ( rc = dm96xx_check_link ( dm96xx ) ) != 0 ) - goto err_check_link; - - return 0; - - err_check_link: - err_write_rcr: - usbnet_close ( &dm96xx->usbnet ); - err_open: - err_write_mac: - err_rx_mode: - return rc; -} - -/** - * Close network device - * - * @v netdev Network device - */ -static void dm96xx_close ( struct net_device *netdev ) { - struct dm96xx_device *dm96xx = netdev->priv; - - /* Close USB network device */ - usbnet_close ( &dm96xx->usbnet ); - - /* Reset device */ - dm96xx_reset ( dm96xx ); -} - -/** - * Transmit packet - * - * @v netdev Network device - * @v iobuf I/O buffer - * @ret rc Return status code - */ -static int dm96xx_transmit ( struct net_device *netdev, - struct io_buffer *iobuf ) { - struct dm96xx_device *dm96xx = netdev->priv; - int rc; - - /* Transmit packet */ - if ( ( rc = dm96xx_out_transmit ( dm96xx, iobuf ) ) != 0 ) - return rc; - - return 0; -} - -/** - * Poll for completed and received packets - * - * @v netdev Network device - */ -static void dm96xx_poll ( struct net_device *netdev ) { - struct dm96xx_device *dm96xx = netdev->priv; - int rc; - - /* Poll USB bus */ - usb_poll ( dm96xx->bus ); - - /* Refill endpoints */ - if ( ( rc = usbnet_refill ( &dm96xx->usbnet ) ) != 0 ) - netdev_rx_err ( netdev, NULL, rc ); -} - -/** DM96xx network device operations */ -static struct net_device_operations dm96xx_operations = { - .open = dm96xx_open, - .close = dm96xx_close, - .transmit = dm96xx_transmit, - .poll = dm96xx_poll, -}; - -/****************************************************************************** - * - * USB interface - * - ****************************************************************************** - */ - -/** - * Probe device - * - * @v func USB function - * @v config Configuration descriptor - * @ret rc Return status code - */ -static int dm96xx_probe ( struct usb_function *func, - struct usb_configuration_descriptor *config ) { - struct usb_device *usb = func->usb; - struct net_device *netdev; - struct dm96xx_device *dm96xx; - int rc; - - /* Allocate and initialise structure */ - netdev = alloc_etherdev ( sizeof ( *dm96xx ) ); - if ( ! netdev ) { - rc = -ENOMEM; - goto err_alloc; - } - netdev_init ( netdev, &dm96xx_operations ); - netdev->dev = &func->dev; - dm96xx = netdev->priv; - memset ( dm96xx, 0, sizeof ( *dm96xx ) ); - dm96xx->usb = usb; - dm96xx->bus = usb->port->hub->bus; - dm96xx->netdev = netdev; - usbnet_init ( &dm96xx->usbnet, func, &dm96xx_intr_operations, - &dm96xx_in_operations, &dm96xx_out_operations ); - usb_refill_init ( &dm96xx->usbnet.intr, 0, DM96XX_INTR_MAX_FILL ); - usb_refill_init ( &dm96xx->usbnet.in, DM96XX_IN_MTU, - DM96XX_IN_MAX_FILL ); - DBGC ( dm96xx, "DM96XX %p on %s\n", dm96xx, func->name ); - - /* Describe USB network device */ - if ( ( rc = usbnet_describe ( &dm96xx->usbnet, config ) ) != 0 ) { - DBGC ( dm96xx, "DM96XX %p could not describe: %s\n", - dm96xx, strerror ( rc ) ); - goto err_describe; - } - - /* Reset device */ - if ( ( rc = dm96xx_reset ( dm96xx ) ) != 0 ) - goto err_reset; - - /* Read MAC address */ - if ( ( rc = dm96xx_read_mac ( dm96xx, netdev->hw_addr ) ) != 0 ) - goto err_read_mac; - - /* Get initial link status */ - if ( ( rc = dm96xx_check_link ( dm96xx ) ) != 0 ) - goto err_check_link; - - /* Register network device */ - if ( ( rc = register_netdev ( netdev ) ) != 0 ) - goto err_register; - - usb_func_set_drvdata ( func, netdev ); - return 0; - - unregister_netdev ( netdev ); - err_register: - err_check_link: - err_read_mac: - err_reset: - err_describe: - netdev_nullify ( netdev ); - netdev_put ( netdev ); - err_alloc: - return rc; -} - -/** - * Remove device - * - * @v func USB function - */ -static void dm96xx_remove ( struct usb_function *func ) { - struct net_device *netdev = usb_func_get_drvdata ( func ); - - unregister_netdev ( netdev ); - netdev_nullify ( netdev ); - netdev_put ( netdev ); -} - -/** DM96xx device IDs */ -static struct usb_device_id dm96xx_ids[] = { - { - .name = "dm9601-corega", - .vendor = 0x07aa, - .product = 0x9601, - }, - { - .name = "dm9601", - .vendor = 0x0a46, - .product = 0x9601, - }, - { - .name = "zt6688", - .vendor = 0x0a46, - .product = 0x6688, - }, - { - .name = "st268", - .vendor = 0x0a46, - .product = 0x0268, - }, - { - .name = "adm8515", - .vendor = 0x0a46, - .product = 0x8515, - }, - { - .name = "dm9601-hirose", - .vendor = 0x0a47, - .product = 0x9601, - }, - { - .name = "dm9601-8101", - .vendor = 0x0fe6, - .product = 0x8101, - }, - { - .name = "dm9601-9700", - .vendor = 0x0fe6, - .product = 0x9700, - }, - { - .name = "dm9000e", - .vendor = 0x0a46, - .product = 0x9000, - }, - { - .name = "dm9620", - .vendor = 0x0a46, - .product = 0x9620, - }, - { - .name = "dm9621A", - .vendor = 0x0a46, - .product = 0x9621, - }, - { - .name = "dm9622", - .vendor = 0x0a46, - .product = 0x9622, - }, - { - .name = "dm962Oa", - .vendor = 0x0a46, - .product = 0x0269, - }, - { - .name = "dm9621a", - .vendor = 0x0a46, - .product = 0x1269, - }, -}; - -/** Davicom DM96xx driver */ -struct usb_driver dm96xx_driver __usb_driver = { - .ids = dm96xx_ids, - .id_count = ( sizeof ( dm96xx_ids ) / sizeof ( dm96xx_ids[0] ) ), - .probe = dm96xx_probe, - .remove = dm96xx_remove, -}; |