diff options
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_rf.c')
-rw-r--r-- | drivers/net/wireless/zd1211rw/zd_rf.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_rf.c b/drivers/net/wireless/zd1211rw/zd_rf.c new file mode 100644 index 000000000000..d3770d2c61bc --- /dev/null +++ b/drivers/net/wireless/zd1211rw/zd_rf.c @@ -0,0 +1,151 @@ +/* zd_rf.c + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/errno.h> +#include <linux/string.h> + +#include "zd_def.h" +#include "zd_rf.h" +#include "zd_ieee80211.h" +#include "zd_chip.h" + +static const char *rfs[] = { + [0] = "unknown RF0", + [1] = "unknown RF1", + [UW2451_RF] = "UW2451_RF", + [UCHIP_RF] = "UCHIP_RF", + [AL2230_RF] = "AL2230_RF", + [AL7230B_RF] = "AL7230B_RF", + [THETA_RF] = "THETA_RF", + [AL2210_RF] = "AL2210_RF", + [MAXIM_NEW_RF] = "MAXIM_NEW_RF", + [UW2453_RF] = "UW2453_RF", + [AL2230S_RF] = "AL2230S_RF", + [RALINK_RF] = "RALINK_RF", + [INTERSIL_RF] = "INTERSIL_RF", + [RF2959_RF] = "RF2959_RF", + [MAXIM_NEW2_RF] = "MAXIM_NEW2_RF", + [PHILIPS_RF] = "PHILIPS_RF", +}; + +const char *zd_rf_name(u8 type) +{ + if (type & 0xf0) + type = 0; + return rfs[type]; +} + +void zd_rf_init(struct zd_rf *rf) +{ + memset(rf, 0, sizeof(*rf)); +} + +void zd_rf_clear(struct zd_rf *rf) +{ + memset(rf, 0, sizeof(*rf)); +} + +int zd_rf_init_hw(struct zd_rf *rf, u8 type) +{ + int r, t; + struct zd_chip *chip = zd_rf_to_chip(rf); + + ZD_ASSERT(mutex_is_locked(&chip->mutex)); + switch (type) { + case RF2959_RF: + r = zd_rf_init_rf2959(rf); + if (r) + return r; + break; + case AL2230_RF: + r = zd_rf_init_al2230(rf); + if (r) + return r; + break; + default: + dev_err(zd_chip_dev(chip), + "RF %s %#x is not supported\n", zd_rf_name(type), type); + rf->type = 0; + return -ENODEV; + } + + rf->type = type; + + r = zd_chip_lock_phy_regs(chip); + if (r) + return r; + t = rf->init_hw(rf); + r = zd_chip_unlock_phy_regs(chip); + if (t) + r = t; + return r; +} + +int zd_rf_scnprint_id(struct zd_rf *rf, char *buffer, size_t size) +{ + return scnprintf(buffer, size, "%s", zd_rf_name(rf->type)); +} + +int zd_rf_set_channel(struct zd_rf *rf, u8 channel) +{ + int r; + + ZD_ASSERT(mutex_is_locked(&zd_rf_to_chip(rf)->mutex)); + if (channel < MIN_CHANNEL24) + return -EINVAL; + if (channel > MAX_CHANNEL24) + return -EINVAL; + dev_dbg_f(zd_chip_dev(zd_rf_to_chip(rf)), "channel: %d\n", channel); + + r = rf->set_channel(rf, channel); + if (r >= 0) + rf->channel = channel; + return r; +} + +int zd_switch_radio_on(struct zd_rf *rf) +{ + int r, t; + struct zd_chip *chip = zd_rf_to_chip(rf); + + ZD_ASSERT(mutex_is_locked(&chip->mutex)); + r = zd_chip_lock_phy_regs(chip); + if (r) + return r; + t = rf->switch_radio_on(rf); + r = zd_chip_unlock_phy_regs(chip); + if (t) + r = t; + return r; +} + +int zd_switch_radio_off(struct zd_rf *rf) +{ + int r, t; + struct zd_chip *chip = zd_rf_to_chip(rf); + + /* TODO: move phy regs handling to zd_chip */ + ZD_ASSERT(mutex_is_locked(&chip->mutex)); + r = zd_chip_lock_phy_regs(chip); + if (r) + return r; + t = rf->switch_radio_off(rf); + r = zd_chip_unlock_phy_regs(chip); + if (t) + r = t; + return r; +} |