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ath5k: don't use PCI ID to find the chip revision

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AR5K_SREV is available even if the chip has been put to sleep.  Relying
on the chip register allows binding non-standard PCI IDs by

echo VENDOR_ID PRODUCT_ID >/sys/bus/pci/drivers/ath5k/new_id

without having to specify the driver data as well.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Acked-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Pavel Roskin 2009-08-26 22:30:09 -04:00 committed by John W. Linville
parent 3b3ee43da4
commit 97a81f5c50
3 changed files with 29 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/ath/ath5k/ath5k.h
View File

@ -1160,7 +1160,7 @@ struct ath5k_hw {
*/ */
/* Attach/Detach Functions */ /* Attach/Detach Functions */
extern struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version); extern struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc);
extern void ath5k_hw_detach(struct ath5k_hw *ah); extern void ath5k_hw_detach(struct ath5k_hw *ah);
/* LED functions */ /* LED functions */

14
drivers/net/wireless/ath/ath5k/attach.c
View File

@ -95,14 +95,13 @@ static int ath5k_hw_post(struct ath5k_hw *ah)
* ath5k_hw_attach - Check if hw is supported and init the needed structs * ath5k_hw_attach - Check if hw is supported and init the needed structs
* *
* @sc: The &struct ath5k_softc we got from the driver's attach function * @sc: The &struct ath5k_softc we got from the driver's attach function
* @mac_version: The mac version id (check out ath5k.h) based on pci id
* *
* Check if the device is supported, perform a POST and initialize the needed * Check if the device is supported, perform a POST and initialize the needed
* structs. Returns -ENOMEM if we don't have memory for the needed structs, * structs. Returns -ENOMEM if we don't have memory for the needed structs,
* -ENODEV if the device is not supported or prints an error msg if something * -ENODEV if the device is not supported or prints an error msg if something
* else went wrong. * else went wrong.
*/ */
struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version) struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc)
{ {
struct ath5k_hw *ah; struct ath5k_hw *ah;
struct pci_dev *pdev = sc->pdev; struct pci_dev *pdev = sc->pdev;
@ -136,9 +135,15 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
ah->ah_software_retry = false; ah->ah_software_retry = false;
/* /*
* Set the mac version based on the pci id * Find the mac version
*/ */
ah->ah_version = mac_version; srev = ath5k_hw_reg_read(ah, AR5K_SREV);
if (srev < AR5K_SREV_AR5311)
ah->ah_version = AR5K_AR5210;
else if (srev < AR5K_SREV_AR5212)
ah->ah_version = AR5K_AR5211;
else
ah->ah_version = AR5K_AR5212;
/*Fill the ath5k_hw struct with the needed functions*/ /*Fill the ath5k_hw struct with the needed functions*/
ret = ath5k_hw_init_desc_functions(ah); ret = ath5k_hw_init_desc_functions(ah);
@ -151,7 +156,6 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
goto err_free; goto err_free;
/* Get MAC, PHY and RADIO revisions */ /* Get MAC, PHY and RADIO revisions */
srev = ath5k_hw_reg_read(ah, AR5K_SREV);
ah->ah_mac_srev = srev; ah->ah_mac_srev = srev;
ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER); ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
ah->ah_mac_revision = AR5K_REG_MS(srev, AR5K_SREV_REV); ah->ah_mac_revision = AR5K_REG_MS(srev, AR5K_SREV_REV);

38
drivers/net/wireless/ath/ath5k/base.c
View File

@ -84,24 +84,24 @@ MODULE_VERSION("0.6.0 (EXPERIMENTAL)");
/* Known PCI ids */ /* Known PCI ids */
static const struct pci_device_id ath5k_pci_id_table[] = { static const struct pci_device_id ath5k_pci_id_table[] = {
{ PCI_VDEVICE(ATHEROS, 0x0207), .driver_data = AR5K_AR5210 }, /* 5210 early */ { PCI_VDEVICE(ATHEROS, 0x0207) }, /* 5210 early */
{ PCI_VDEVICE(ATHEROS, 0x0007), .driver_data = AR5K_AR5210 }, /* 5210 */ { PCI_VDEVICE(ATHEROS, 0x0007) }, /* 5210 */
{ PCI_VDEVICE(ATHEROS, 0x0011), .driver_data = AR5K_AR5211 }, /* 5311 - this is on AHB bus !*/ { PCI_VDEVICE(ATHEROS, 0x0011) }, /* 5311 - this is on AHB bus !*/
{ PCI_VDEVICE(ATHEROS, 0x0012), .driver_data = AR5K_AR5211 }, /* 5211 */ { PCI_VDEVICE(ATHEROS, 0x0012) }, /* 5211 */
{ PCI_VDEVICE(ATHEROS, 0x0013), .driver_data = AR5K_AR5212 }, /* 5212 */ { PCI_VDEVICE(ATHEROS, 0x0013) }, /* 5212 */
{ PCI_VDEVICE(3COM_2, 0x0013), .driver_data = AR5K_AR5212 }, /* 3com 5212 */ { PCI_VDEVICE(3COM_2, 0x0013) }, /* 3com 5212 */
{ PCI_VDEVICE(3COM, 0x0013), .driver_data = AR5K_AR5212 }, /* 3com 3CRDAG675 5212 */ { PCI_VDEVICE(3COM, 0x0013) }, /* 3com 3CRDAG675 5212 */
{ PCI_VDEVICE(ATHEROS, 0x1014), .driver_data = AR5K_AR5212 }, /* IBM minipci 5212 */ { PCI_VDEVICE(ATHEROS, 0x1014) }, /* IBM minipci 5212 */
{ PCI_VDEVICE(ATHEROS, 0x0014), .driver_data = AR5K_AR5212 }, /* 5212 combatible */ { PCI_VDEVICE(ATHEROS, 0x0014) }, /* 5212 combatible */
{ PCI_VDEVICE(ATHEROS, 0x0015), .driver_data = AR5K_AR5212 }, /* 5212 combatible */ { PCI_VDEVICE(ATHEROS, 0x0015) }, /* 5212 combatible */
{ PCI_VDEVICE(ATHEROS, 0x0016), .driver_data = AR5K_AR5212 }, /* 5212 combatible */ { PCI_VDEVICE(ATHEROS, 0x0016) }, /* 5212 combatible */
{ PCI_VDEVICE(ATHEROS, 0x0017), .driver_data = AR5K_AR5212 }, /* 5212 combatible */ { PCI_VDEVICE(ATHEROS, 0x0017) }, /* 5212 combatible */
{ PCI_VDEVICE(ATHEROS, 0x0018), .driver_data = AR5K_AR5212 }, /* 5212 combatible */ { PCI_VDEVICE(ATHEROS, 0x0018) }, /* 5212 combatible */
{ PCI_VDEVICE(ATHEROS, 0x0019), .driver_data = AR5K_AR5212 }, /* 5212 combatible */ { PCI_VDEVICE(ATHEROS, 0x0019) }, /* 5212 combatible */
{ PCI_VDEVICE(ATHEROS, 0x001a), .driver_data = AR5K_AR5212 }, /* 2413 Griffin-lite */ { PCI_VDEVICE(ATHEROS, 0x001a) }, /* 2413 Griffin-lite */
{ PCI_VDEVICE(ATHEROS, 0x001b), .driver_data = AR5K_AR5212 }, /* 5413 Eagle */ { PCI_VDEVICE(ATHEROS, 0x001b) }, /* 5413 Eagle */
{ PCI_VDEVICE(ATHEROS, 0x001c), .driver_data = AR5K_AR5212 }, /* PCI-E cards */ { PCI_VDEVICE(ATHEROS, 0x001c) }, /* PCI-E cards */
{ PCI_VDEVICE(ATHEROS, 0x001d), .driver_data = AR5K_AR5212 }, /* 2417 Nala */ { PCI_VDEVICE(ATHEROS, 0x001d) }, /* 2417 Nala */
{ 0 } { 0 }
}; };
MODULE_DEVICE_TABLE(pci, ath5k_pci_id_table); MODULE_DEVICE_TABLE(pci, ath5k_pci_id_table);
@ -566,7 +566,7 @@ ath5k_pci_probe(struct pci_dev *pdev,
} }
/* Initialize device */ /* Initialize device */
sc->ah = ath5k_hw_attach(sc, id->driver_data); sc->ah = ath5k_hw_attach(sc);
if (IS_ERR(sc->ah)) { if (IS_ERR(sc->ah)) {
ret = PTR_ERR(sc->ah); ret = PTR_ERR(sc->ah);
goto err_irq; goto err_irq;