diff options
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_rf_al7230b.c')
| -rw-r--r-- | drivers/net/wireless/zd1211rw/zd_rf_al7230b.c | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_rf_al7230b.c b/drivers/net/wireless/zd1211rw/zd_rf_al7230b.c new file mode 100644 index 000000000000..a289f95187ec --- /dev/null +++ b/drivers/net/wireless/zd1211rw/zd_rf_al7230b.c @@ -0,0 +1,274 @@ +/* zd_rf_al7230b.c: Functions for the AL7230B RF controller + * + * 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/kernel.h> + +#include "zd_rf.h" +#include "zd_usb.h" +#include "zd_chip.h" + +static const u32 chan_rv[][2] = { + RF_CHANNEL( 1) = { 0x09ec00, 0x8cccc8 }, + RF_CHANNEL( 2) = { 0x09ec00, 0x8cccd8 }, + RF_CHANNEL( 3) = { 0x09ec00, 0x8cccc0 }, + RF_CHANNEL( 4) = { 0x09ec00, 0x8cccd0 }, + RF_CHANNEL( 5) = { 0x05ec00, 0x8cccc8 }, + RF_CHANNEL( 6) = { 0x05ec00, 0x8cccd8 }, + RF_CHANNEL( 7) = { 0x05ec00, 0x8cccc0 }, + RF_CHANNEL( 8) = { 0x05ec00, 0x8cccd0 }, + RF_CHANNEL( 9) = { 0x0dec00, 0x8cccc8 }, + RF_CHANNEL(10) = { 0x0dec00, 0x8cccd8 }, + RF_CHANNEL(11) = { 0x0dec00, 0x8cccc0 }, + RF_CHANNEL(12) = { 0x0dec00, 0x8cccd0 }, + RF_CHANNEL(13) = { 0x03ec00, 0x8cccc8 }, + RF_CHANNEL(14) = { 0x03ec00, 0x866660 }, +}; + +static const u32 std_rv[] = { + 0x4ff821, + 0xc5fbfc, + 0x21ebfe, + 0xafd401, /* freq shift 0xaad401 */ + 0x6cf56a, + 0xe04073, + 0x193d76, + 0x9dd844, + 0x500007, + 0xd8c010, +}; + +static int al7230b_init_hw(struct zd_rf *rf) +{ + int i, r; + struct zd_chip *chip = zd_rf_to_chip(rf); + + /* All of these writes are identical to AL2230 unless otherwise + * specified */ + static const struct zd_ioreq16 ioreqs_1[] = { + /* This one is 7230-specific, and happens before the rest */ + { CR240, 0x57 }, + { }, + + { CR15, 0x20 }, { CR23, 0x40 }, { CR24, 0x20 }, + { CR26, 0x11 }, { CR28, 0x3e }, { CR29, 0x00 }, + { CR44, 0x33 }, + /* This value is different for 7230 (was: 0x2a) */ + { CR106, 0x22 }, + { CR107, 0x1a }, { CR109, 0x09 }, { CR110, 0x27 }, + { CR111, 0x2b }, { CR112, 0x2b }, { CR119, 0x0a }, + /* This happened further down in AL2230, + * and the value changed (was: 0xe0) */ + { CR122, 0xfc }, + { CR10, 0x89 }, + /* for newest (3rd cut) AL2300 */ + { CR17, 0x28 }, + { CR26, 0x93 }, { CR34, 0x30 }, + /* for newest (3rd cut) AL2300 */ + { CR35, 0x3e }, + { CR41, 0x24 }, { CR44, 0x32 }, + /* for newest (3rd cut) AL2300 */ + { CR46, 0x96 }, + { CR47, 0x1e }, { CR79, 0x58 }, { CR80, 0x30 }, + { CR81, 0x30 }, { CR87, 0x0a }, { CR89, 0x04 }, + { CR92, 0x0a }, { CR99, 0x28 }, + /* This value is different for 7230 (was: 0x00) */ + { CR100, 0x02 }, + { CR101, 0x13 }, { CR102, 0x27 }, + /* This value is different for 7230 (was: 0x24) */ + { CR106, 0x22 }, + /* This value is different for 7230 (was: 0x2a) */ + { CR107, 0x3f }, + { CR109, 0x09 }, + /* This value is different for 7230 (was: 0x13) */ + { CR110, 0x1f }, + { CR111, 0x1f }, { CR112, 0x1f }, { CR113, 0x27 }, + { CR114, 0x27 }, + /* for newest (3rd cut) AL2300 */ + { CR115, 0x24 }, + /* This value is different for 7230 (was: 0x24) */ + { CR116, 0x3f }, + /* This value is different for 7230 (was: 0xf4) */ + { CR117, 0xfa }, + { CR118, 0xfc }, { CR119, 0x10 }, { CR120, 0x4f }, + { CR121, 0x77 }, { CR137, 0x88 }, + /* This one is 7230-specific */ + { CR138, 0xa8 }, + /* This value is different for 7230 (was: 0xff) */ + { CR252, 0x34 }, + /* This value is different for 7230 (was: 0xff) */ + { CR253, 0x34 }, + + /* PLL_OFF */ + { CR251, 0x2f }, + }; + + static const struct zd_ioreq16 ioreqs_2[] = { + /* PLL_ON */ + { CR251, 0x3f }, + { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 }, + { CR38, 0x38 }, { CR136, 0xdf }, + }; + + r = zd_iowrite16a_locked(chip, ioreqs_1, ARRAY_SIZE(ioreqs_1)); + if (r) + return r; + + r = zd_rfwrite_cr_locked(chip, 0x09ec04); + if (r) + return r; + r = zd_rfwrite_cr_locked(chip, 0x8cccc8); + if (r) + return r; + + for (i = 0; i < ARRAY_SIZE(std_rv); i++) { + r = zd_rfwrite_cr_locked(chip, std_rv[i]); + if (r) + return r; + } + + r = zd_rfwrite_cr_locked(chip, 0x3c9000); + if (r) + return r; + r = zd_rfwrite_cr_locked(chip, 0xbfffff); + if (r) + return r; + r = zd_rfwrite_cr_locked(chip, 0x700000); + if (r) + return r; + r = zd_rfwrite_cr_locked(chip, 0xf15d58); + if (r) + return r; + + r = zd_iowrite16a_locked(chip, ioreqs_2, ARRAY_SIZE(ioreqs_2)); + if (r) + return r; + + r = zd_rfwrite_cr_locked(chip, 0xf15d59); + if (r) + return r; + r = zd_rfwrite_cr_locked(chip, 0xf15d5c); + if (r) + return r; + r = zd_rfwrite_cr_locked(chip, 0xf15d58); + if (r) + return r; + + r = zd_iowrite16_locked(chip, 0x06, CR203); + if (r) + return r; + r = zd_iowrite16_locked(chip, 0x80, CR240); + if (r) + return r; + + return 0; +} + +static int al7230b_set_channel(struct zd_rf *rf, u8 channel) +{ + int i, r; + const u32 *rv = chan_rv[channel-1]; + struct zd_chip *chip = zd_rf_to_chip(rf); + + struct zd_ioreq16 ioreqs_1[] = { + { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 }, + { CR38, 0x38 }, { CR136, 0xdf }, + }; + + struct zd_ioreq16 ioreqs_2[] = { + /* PLL_ON */ + { CR251, 0x3f }, + { CR203, 0x06 }, { CR240, 0x08 }, + }; + + r = zd_iowrite16_locked(chip, 0x57, CR240); + if (r) + return r; + + /* PLL_OFF */ + r = zd_iowrite16_locked(chip, 0x2f, CR251); + if (r) + return r; + + for (i = 0; i < ARRAY_SIZE(std_rv); i++) { + r = zd_rfwrite_cr_locked(chip, std_rv[i]); + if (r) + return r; + } + + r = zd_rfwrite_cr_locked(chip, 0x3c9000); + if (r) + return r; + r = zd_rfwrite_cr_locked(chip, 0xf15d58); + if (r) + return r; + + r = zd_iowrite16a_locked(chip, ioreqs_1, ARRAY_SIZE(ioreqs_1)); + if (r) + return r; + + for (i = 0; i < 2; i++) { + r = zd_rfwrite_cr_locked(chip, rv[i]); + if (r) + return r; + } + + r = zd_rfwrite_cr_locked(chip, 0x3c9000); + if (r) + return r; + + return zd_iowrite16a_locked(chip, ioreqs_2, ARRAY_SIZE(ioreqs_2)); +} + +static int al7230b_switch_radio_on(struct zd_rf *rf) +{ + struct zd_chip *chip = zd_rf_to_chip(rf); + static const struct zd_ioreq16 ioreqs[] = { + { CR11, 0x00 }, + { CR251, 0x3f }, + }; + + return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); +} + +static int al7230b_switch_radio_off(struct zd_rf *rf) +{ + struct zd_chip *chip = zd_rf_to_chip(rf); + static const struct zd_ioreq16 ioreqs[] = { + { CR11, 0x04 }, + { CR251, 0x2f }, + }; + + return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); +} + +int zd_rf_init_al7230b(struct zd_rf *rf) +{ + struct zd_chip *chip = zd_rf_to_chip(rf); + + if (chip->is_zd1211b) { + dev_err(zd_chip_dev(chip), "AL7230B is currently not " + "supported for ZD1211B devices\n"); + return -ENODEV; + } + + rf->init_hw = al7230b_init_hw; + rf->set_channel = al7230b_set_channel; + rf->switch_radio_on = al7230b_switch_radio_on; + rf->switch_radio_off = al7230b_switch_radio_off; + rf->patch_6m_band_edge = 1; + return 0; +} |