diff options
author | RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
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committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/ipxe/src/drivers/net/3c509.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/3c509.c')
-rw-r--r-- | qemu/roms/ipxe/src/drivers/net/3c509.c | 432 |
1 files changed, 0 insertions, 432 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/3c509.c b/qemu/roms/ipxe/src/drivers/net/3c509.c deleted file mode 100644 index 4326a835c..000000000 --- a/qemu/roms/ipxe/src/drivers/net/3c509.c +++ /dev/null @@ -1,432 +0,0 @@ -/* - * Split out into 3c509.c and 3c5x9.c, to make it possible to build a - * 3c529 module without including ISA, ISAPnP and EISA code. - * - */ - -FILE_LICENCE ( BSD2 ); - -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <ipxe/io.h> -#include <unistd.h> -#include <ipxe/device.h> -#include <ipxe/isa.h> -#include "3c509.h" - -/* - * 3c509 cards have their own method of contention resolution; this - * effectively defines another bus type similar to ISAPnP. Even the - * original ISA cards can be programatically mapped to any I/O address - * in the range 0x200-0x3e0. - * - * However, there is a small problem: once you've activated a card, - * the only ways to deactivate it will also wipe its tag, meaning that - * you won't be able to subsequently reactivate it without going - * through the whole ID sequence again. The solution we adopt is to - * isolate and tag all cards at the start, and to immediately - * re-isolate and re-tag a card after disabling it. - * - */ - -static void t509bus_remove ( struct root_device *rootdev ); - -static unsigned int t509_id_port = 0; -static unsigned int t509_max_tag = 0; - -/** A 3c509 device */ -struct t509_device { - /** Generic device */ - struct device dev; - /** Tag */ - unsigned int tag; - /** I/O address */ - uint16_t ioaddr; - /** Driver-private data - * - * Use t509_set_drvdata() and t509_get_drvdata() to access - * this field. - */ - void *priv; -}; - -/** - * Set 3c509 driver-private data - * - * @v t509 3c509 device - * @v priv Private data - */ -static inline void t509_set_drvdata ( struct t509_device *t509, void *priv ) { - t509->priv = priv; -} - -/** - * Get 3c509 driver-private data - * - * @v t509 3c509 device - * @ret priv Private data - */ -static inline void * t509_get_drvdata ( struct t509_device *t509 ) { - return t509->priv; -} - -/* - * t509 utility functions - * - */ - -static inline void t509_set_id_port ( void ) { - outb ( 0x00, t509_id_port ); -} - -static inline void t509_wait_for_id_sequence ( void ) { - outb ( 0x00, t509_id_port ); -} - -static inline void t509_global_reset ( void ) { - outb ( 0xc0, t509_id_port ); -} - -static inline void t509_reset_tag ( void ) { - outb ( 0xd0, t509_id_port ); -} - -static inline void t509_set_tag ( uint8_t tag ) { - outb ( 0xd0 | tag, t509_id_port ); -} - -static inline void t509_select_tag ( uint8_t tag ) { - outb ( 0xd8 | tag, t509_id_port ); -} - -static inline void t509_activate ( uint16_t ioaddr ) { - outb ( 0xe0 | ( ioaddr >> 4 ), t509_id_port ); -} - -static inline void t509_deactivate_and_reset_tag ( uint16_t ioaddr ) { - outb ( GLOBAL_RESET, ioaddr + EP_COMMAND ); -} - -static inline void t509_load_eeprom_word ( uint8_t offset ) { - outb ( 0x80 | offset, t509_id_port ); -} - -/* - * Find a suitable ID port - * - */ -static inline int t509_find_id_port ( void ) { - - for ( t509_id_port = EP_ID_PORT_START ; - t509_id_port < EP_ID_PORT_END ; - t509_id_port += EP_ID_PORT_INC ) { - t509_set_id_port (); - /* See if anything's listening */ - outb ( 0xff, t509_id_port ); - if ( inb ( t509_id_port ) & 0x01 ) { - /* Found a suitable port */ - DBG ( "T509 using ID port at %04x\n", t509_id_port ); - return 0; - } - } - /* No id port available */ - DBG ( "T509 found no available ID port\n" ); - return -ENOENT; -} - -/* - * Send ID sequence to the ID port - * - */ -static void t509_send_id_sequence ( void ) { - unsigned short lrs_state, i; - - t509_set_id_port (); - /* Reset IDS on cards */ - t509_wait_for_id_sequence (); - lrs_state = 0xff; - for ( i = 0; i < 255; i++ ) { - outb ( lrs_state, t509_id_port ); - lrs_state <<= 1; - lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state; - } -} - -/* - * We get eeprom data from the id_port given an offset into the eeprom. - * Basically; after the ID_sequence is sent to all of the cards; they enter - * the ID_CMD state where they will accept command requests. 0x80-0xbf loads - * the eeprom data. We then read the port 16 times and with every read; the - * cards check for contention (ie: if one card writes a 0 bit and another - * writes a 1 bit then the host sees a 0. At the end of the cycle; each card - * compares the data on the bus; if there is a difference then that card goes - * into ID_WAIT state again). In the meantime; one bit of data is returned in - * the AX register which is conveniently returned to us by inb(). Hence; we - * read 16 times getting one bit of data with each read. - */ -static uint16_t t509_id_read_eeprom ( int offset ) { - int i, data = 0; - - t509_load_eeprom_word ( offset ); - /* Do we really need this wait? Won't be noticeable anyway */ - udelay(10000); - - for ( i = 0; i < 16; i++ ) { - data = ( data << 1 ) | ( inw ( t509_id_port ) & 1 ); - } - return data; -} - -/* - * Isolate and tag all t509 cards - * - */ -static int t509_isolate ( void ) { - unsigned int i; - uint16_t contend[3]; - int rc; - - /* Find a suitable ID port */ - if ( ( rc = t509_find_id_port() ) != 0 ) - return rc; - - while ( 1 ) { - - /* All cards are in ID_WAIT state each time we go - * through this loop. - */ - - /* Send the ID sequence */ - t509_send_id_sequence(); - - /* First time through, reset all tags. On subsequent - * iterations, kill off any already-tagged cards - */ - if ( t509_max_tag == 0 ) { - t509_reset_tag(); - } else { - t509_select_tag ( 0 ); - } - - /* Read the manufacturer ID, to see if there are any - * more cards - */ - if ( t509_id_read_eeprom ( EEPROM_MFG_ID ) != MFG_ID ) { - DBG ( "T509 saw %s signs of life\n", - t509_max_tag ? "no further" : "no" ); - break; - } - - /* Perform contention selection on the MAC address */ - for ( i = 0 ; i < 3 ; i++ ) { - contend[i] = t509_id_read_eeprom ( i ); - } - - /* Only one device will still be left alive. Tag it. */ - ++t509_max_tag; - DBG ( "T509 found card %04x%04x%04x, assigning tag %02x\n", - contend[0], contend[1], contend[2], t509_max_tag ); - t509_set_tag ( t509_max_tag ); - - /* Return all cards back to ID_WAIT state */ - t509_wait_for_id_sequence(); - } - - DBG ( "T509 found %d cards using ID port %04x\n", - t509_max_tag, t509_id_port ); - return 0; -} - -/* - * Activate a T509 device - * - * The device will be enabled at whatever ioaddr is specified in the - * struct t509_device; there is no need to stick with the default - * ioaddr read from the EEPROM. - * - */ -static inline void activate_t509_device ( struct t509_device *t509 ) { - t509_send_id_sequence (); - t509_select_tag ( t509->tag ); - t509_activate ( t509->ioaddr ); - DBG ( "T509 activated device %02x at ioaddr %04x\n", - t509->tag, t509->ioaddr ); -} - -/* - * Deactivate a T509 device - * - * Disabling also clears the tag, so we immediately isolate and re-tag - * this card. - * - */ -static inline void deactivate_t509_device ( struct t509_device *t509 ) { - t509_deactivate_and_reset_tag ( t509->ioaddr ); - udelay ( 1000 ); - t509_send_id_sequence (); - t509_select_tag ( 0 ); - t509_set_tag ( t509->tag ); - t509_wait_for_id_sequence (); - DBG ( "T509 deactivated device at %04x and re-tagged as %02x\n", - t509->ioaddr, t509->tag ); -} - -/* - * The ISA probe function - * - */ -static int legacy_t509_probe ( struct nic *nic, void *hwdev ) { - struct t509_device *t509 = hwdev; - - /* We could change t509->ioaddr if we wanted to */ - activate_t509_device ( t509 ); - nic->ioaddr = t509->ioaddr; - - /* Hand off to generic t5x9 probe routine */ - return t5x9_probe ( nic, ISA_PROD_ID ( PROD_ID ), ISA_PROD_ID_MASK ); -} - -static void legacy_t509_disable ( struct nic *nic, void *hwdev ) { - struct t509_device *t509 = hwdev; - - t5x9_disable ( nic ); - deactivate_t509_device ( t509 ); -} - -static inline void legacy_t509_set_drvdata ( void *hwdev, void *priv ) { - t509_set_drvdata ( hwdev, priv ); -} - -static inline void * legacy_t509_get_drvdata ( void *hwdev ) { - return t509_get_drvdata ( hwdev ); -} - -/** - * Probe a 3c509 device - * - * @v t509 3c509 device - * @ret rc Return status code - * - * Searches for a driver for the 3c509 device. If a driver is found, - * its probe() routine is called. - */ -static int t509_probe ( struct t509_device *t509 ) { - DBG ( "Adding 3c509 device %02x (I/O %04x)\n", - t509->tag, t509->ioaddr ); - return legacy_probe ( t509, legacy_t509_set_drvdata, &t509->dev, - legacy_t509_probe, legacy_t509_disable ); -} - -/** - * Remove a 3c509 device - * - * @v t509 3c509 device - */ -static void t509_remove ( struct t509_device *t509 ) { - legacy_remove ( t509, legacy_t509_get_drvdata, legacy_t509_disable ); - DBG ( "Removed 3c509 device %02x\n", t509->tag ); -} - -/** - * Probe 3c509 root bus - * - * @v rootdev 3c509 bus root device - * - * Scans the 3c509 bus for devices and registers all devices it can - * find. - */ -static int t509bus_probe ( struct root_device *rootdev ) { - struct t509_device *t509 = NULL; - unsigned int tag; - unsigned int iobase; - int rc; - - /* Perform isolation and tagging */ - if ( ( rc = t509_isolate() ) != 0 ) - return rc; - - for ( tag = 1 ; tag <= t509_max_tag ; tag++ ) { - /* Allocate struct t509_device */ - if ( ! t509 ) - t509 = malloc ( sizeof ( *t509 ) ); - if ( ! t509 ) { - rc = -ENOMEM; - goto err; - } - memset ( t509, 0, sizeof ( *t509 ) ); - t509->tag = tag; - - /* Send the ID sequence */ - t509_send_id_sequence (); - - /* Select the specified tag */ - t509_select_tag ( t509->tag ); - - /* Read the default I/O address */ - iobase = t509_id_read_eeprom ( EEPROM_ADDR_CFG ); - t509->ioaddr = 0x200 + ( ( iobase & 0x1f ) << 4 ); - - /* Send card back to ID_WAIT */ - t509_wait_for_id_sequence(); - - /* Add to device hierarchy */ - snprintf ( t509->dev.name, sizeof ( t509->dev.name ), - "t509%02x", tag ); - t509->dev.desc.bus_type = BUS_TYPE_ISA; - t509->dev.desc.vendor = MFG_ID; - t509->dev.desc.device = PROD_ID; - t509->dev.parent = &rootdev->dev; - list_add ( &t509->dev.siblings, &rootdev->dev.children ); - INIT_LIST_HEAD ( &t509->dev.children ); - - /* Look for a driver */ - if ( t509_probe ( t509 ) == 0 ) { - /* t509dev registered, we can drop our ref */ - t509 = NULL; - } else { - /* Not registered; re-use struct */ - list_del ( &t509->dev.siblings ); - } - } - - free ( t509 ); - return 0; - - err: - free ( t509 ); - t509bus_remove ( rootdev ); - return rc; -} - -/** - * Remove 3c509 root bus - * - * @v rootdev 3c509 bus root device - */ -static void t509bus_remove ( struct root_device *rootdev ) { - struct t509_device *t509; - struct t509_device *tmp; - - list_for_each_entry_safe ( t509, tmp, &rootdev->dev.children, - dev.siblings ) { - t509_remove ( t509 ); - list_del ( &t509->dev.siblings ); - free ( t509 ); - } -} - -/** 3c509 bus root device driver */ -static struct root_driver t509_root_driver = { - .probe = t509bus_probe, - .remove = t509bus_remove, -}; - -/** 3c509 bus root device */ -struct root_device t509_root_device __root_device = { - .dev = { .name = "3c509" }, - .driver = &t509_root_driver, -}; - -ISA_ROM ( "3c509", "3c509" ); |