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path: root/drivers/staging/vt6656/baseband.c
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Diffstat (limited to 'drivers/staging/vt6656/baseband.c')
-rw-r--r--drivers/staging/vt6656/baseband.c455
1 files changed, 455 insertions, 0 deletions
diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
new file mode 100644
index 000000000..ad7b963f0
--- /dev/null
+++ b/drivers/staging/vt6656/baseband.c
@@ -0,0 +1,455 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
+ * All rights reserved.
+ *
+ * Purpose: Implement functions to access baseband
+ *
+ * Author: Jerry Chen
+ *
+ * Date: Jun. 5, 2002
+ *
+ * Functions:
+ * vnt_get_frame_time - Calculate data frame transmitting time
+ * vnt_get_phy_field - Calculate PhyLength, PhyService and Phy
+ * Signal parameter for baseband Tx
+ * vnt_vt3184_init - VIA VT3184 baseband chip init code
+ *
+ * Revision History:
+ *
+ *
+ */
+
+#include <linux/bits.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include "device.h"
+#include "mac.h"
+#include "baseband.h"
+#include "rf.h"
+#include "usbpipe.h"
+
+static const u8 vnt_vt3184_agc[] = {
+ 0x00, 0x00, 0x02, 0x02, 0x04, 0x04, 0x06, 0x06,
+ 0x08, 0x08, 0x0a, 0x0a, 0x0c, 0x0c, 0x0e, 0x0e, /* 0x0f */
+ 0x10, 0x10, 0x12, 0x12, 0x14, 0x14, 0x16, 0x16,
+ 0x18, 0x18, 0x1a, 0x1a, 0x1c, 0x1c, 0x1e, 0x1e, /* 0x1f */
+ 0x20, 0x20, 0x22, 0x22, 0x24, 0x24, 0x26, 0x26,
+ 0x28, 0x28, 0x2a, 0x2a, 0x2c, 0x2c, 0x2e, 0x2e, /* 0x2f */
+ 0x30, 0x30, 0x32, 0x32, 0x34, 0x34, 0x36, 0x36,
+ 0x38, 0x38, 0x3a, 0x3a, 0x3c, 0x3c, 0x3e, 0x3e /* 0x3f */
+};
+
+static u8 vnt_vt3184_al2230[] = {
+ 0x31, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00,
+ 0x70, 0x45, 0x2a, 0x76, 0x00, 0x00, 0x80, 0x00, /* 0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x8e, 0x0a, 0x00, 0x00, 0x00, /* 0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x0c, /* 0x2f */
+ 0x26, 0x5b, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xaa,
+ 0xff, 0xff, 0x79, 0x00, 0x00, 0x0b, 0x48, 0x04, /* 0x3f */
+ 0x00, 0x08, 0x00, 0x08, 0x08, 0x14, 0x05, 0x09,
+ 0x00, 0x00, 0x00, 0x00, 0x09, 0x73, 0x00, 0xc5, /* 0x4f */
+ 0x00, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5f */
+ 0xe4, 0x80, 0x00, 0x00, 0x00, 0x00, 0x98, 0x0a,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, /* 0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7f */
+ 0x8c, 0x01, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x08, 0x00, 0x1f, 0xb7, 0x88, 0x47, 0xaa, 0x00, /* 0x8f */
+ 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xeb,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* 0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+ 0x18, 0x00, 0x00, 0x00, 0x00, 0x15, 0x00, 0x18, /* 0xaf */
+ 0x38, 0x30, 0x00, 0x00, 0xff, 0x0f, 0xe4, 0xe2,
+ 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, /* 0xbf */
+ 0x18, 0x20, 0x07, 0x18, 0xff, 0xff, 0x0e, 0x0a,
+ 0x0e, 0x00, 0x82, 0xa7, 0x3c, 0x10, 0x30, 0x05, /* 0xcf */
+ 0x40, 0x12, 0x00, 0x00, 0x10, 0x28, 0x80, 0x2a,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xdf */
+ 0x00, 0xf3, 0x00, 0x00, 0x00, 0x10, 0x00, 0x12,
+ 0x00, 0xf4, 0x00, 0xff, 0x79, 0x20, 0x30, 0x05, /* 0xef */
+ 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* 0xff */
+};
+
+/* {{RobertYu:20060515, new BB setting for VT3226D0 */
+static const u8 vnt_vt3184_vt3226d0[] = {
+ 0x31, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00,
+ 0x70, 0x45, 0x2a, 0x76, 0x00, 0x00, 0x80, 0x00, /* 0x0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x8e, 0x0a, 0x00, 0x00, 0x00, /* 0x1f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x0c, /* 0x2f */
+ 0x26, 0x5b, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xaa,
+ 0xff, 0xff, 0x79, 0x00, 0x00, 0x0b, 0x48, 0x04, /* 0x3f */
+ 0x00, 0x08, 0x00, 0x08, 0x08, 0x14, 0x05, 0x09,
+ 0x00, 0x00, 0x00, 0x00, 0x09, 0x73, 0x00, 0xc5, /* 0x4f */
+ 0x00, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5f */
+ 0xe4, 0x80, 0x00, 0x00, 0x00, 0x00, 0x98, 0x0a,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, /* 0x6f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7f */
+ 0x8c, 0x01, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x08, 0x00, 0x1f, 0xb7, 0x88, 0x47, 0xaa, 0x00, /* 0x8f */
+ 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xeb,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* 0x9f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+ 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, /* 0xaf */
+ 0x38, 0x30, 0x00, 0x00, 0xff, 0x0f, 0xe4, 0xe2,
+ 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, /* 0xbf */
+ 0x18, 0x20, 0x07, 0x18, 0xff, 0xff, 0x10, 0x0a,
+ 0x0e, 0x00, 0x84, 0xa7, 0x3c, 0x10, 0x24, 0x05, /* 0xcf */
+ 0x40, 0x12, 0x00, 0x00, 0x10, 0x28, 0x80, 0x2a,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xdf */
+ 0x00, 0xf3, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10,
+ 0x00, 0xf4, 0x00, 0xff, 0x79, 0x20, 0x30, 0x08, /* 0xef */
+ 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* 0xff */
+};
+
+struct vnt_threshold {
+ u8 bb_pre_ed_rssi;
+ u8 cr_201;
+ u8 cr_206;
+};
+
+static const struct vnt_threshold al2230_vnt_threshold[] = {
+ {0, 0x00, 0x30}, /* Max sensitivity */
+ {68, 0x00, 0x36},
+ {67, 0x00, 0x43},
+ {66, 0x00, 0x51},
+ {65, 0x00, 0x62},
+ {64, 0x00, 0x79},
+ {63, 0x00, 0x93},
+ {62, 0x00, 0xb9},
+ {61, 0x00, 0xe3},
+ {60, 0x01, 0x18},
+ {59, 0x01, 0x54},
+ {58, 0x01, 0xa0},
+ {57, 0x02, 0x20},
+ {56, 0x02, 0xa0},
+ {55, 0x03, 0x00},
+ {53, 0x06, 0x00},
+ {51, 0x09, 0x00},
+ {49, 0x0e, 0x00},
+ {47, 0x15, 0x00},
+ {46, 0x1a, 0x00},
+ {45, 0xff, 0x00}
+};
+
+static const struct vnt_threshold vt3226_vnt_threshold[] = {
+ {0, 0x00, 0x24}, /* Max sensitivity */
+ {68, 0x00, 0x2d},
+ {67, 0x00, 0x36},
+ {66, 0x00, 0x43},
+ {65, 0x00, 0x52},
+ {64, 0x00, 0x68},
+ {63, 0x00, 0x80},
+ {62, 0x00, 0x9c},
+ {61, 0x00, 0xc0},
+ {60, 0x00, 0xea},
+ {59, 0x01, 0x30},
+ {58, 0x01, 0x70},
+ {57, 0x01, 0xb0},
+ {56, 0x02, 0x30},
+ {55, 0x02, 0xc0},
+ {53, 0x04, 0x00},
+ {51, 0x07, 0x00},
+ {49, 0x0a, 0x00},
+ {47, 0x11, 0x00},
+ {45, 0x18, 0x00},
+ {43, 0x26, 0x00},
+ {42, 0x36, 0x00},
+ {41, 0xff, 0x00}
+};
+
+/*
+ * Description: Set Antenna mode
+ *
+ * Parameters:
+ * In:
+ * priv - Device Structure
+ * antenna_mode - Antenna Mode
+ * Out:
+ * none
+ *
+ * Return Value: none
+ *
+ */
+int vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode)
+{
+ switch (antenna_mode) {
+ case ANT_TXA:
+ case ANT_TXB:
+ break;
+ case ANT_RXA:
+ priv->bb_rx_conf &= 0xFC;
+ break;
+ case ANT_RXB:
+ priv->bb_rx_conf &= 0xFE;
+ priv->bb_rx_conf |= 0x02;
+ break;
+ }
+
+ return vnt_control_out(priv, MESSAGE_TYPE_SET_ANTMD,
+ (u16)antenna_mode, 0, 0, NULL);
+}
+
+/*
+ * Description: Set Antenna mode
+ *
+ * Parameters:
+ * In:
+ * pDevice - Device Structure
+ * byAntennaMode - Antenna Mode
+ * Out:
+ * none
+ *
+ * Return Value: none
+ *
+ */
+
+int vnt_vt3184_init(struct vnt_private *priv)
+{
+ int ret;
+ u16 length;
+ u8 *addr = NULL;
+ const u8 *c_addr;
+ u8 data;
+
+ ret = vnt_control_in(priv, MESSAGE_TYPE_READ, 0, MESSAGE_REQUEST_EEPROM,
+ EEP_MAX_CONTEXT_SIZE, priv->eeprom);
+ if (ret)
+ goto end;
+
+ priv->rf_type = priv->eeprom[EEP_OFS_RFTYPE];
+
+ dev_dbg(&priv->usb->dev, "RF Type %d\n", priv->rf_type);
+
+ if ((priv->rf_type == RF_AL2230) ||
+ (priv->rf_type == RF_AL2230S)) {
+ priv->bb_rx_conf = vnt_vt3184_al2230[10];
+ length = sizeof(vnt_vt3184_al2230);
+ addr = vnt_vt3184_al2230;
+
+ priv->bb_vga[0] = 0x1c;
+ priv->bb_vga[1] = 0x10;
+ priv->bb_vga[2] = 0x0;
+ priv->bb_vga[3] = 0x0;
+
+ } else if ((priv->rf_type == RF_VT3226) ||
+ (priv->rf_type == RF_VT3226D0)) {
+ priv->bb_rx_conf = vnt_vt3184_vt3226d0[10];
+ length = sizeof(vnt_vt3184_vt3226d0);
+ c_addr = vnt_vt3184_vt3226d0;
+
+ priv->bb_vga[0] = 0x20;
+ priv->bb_vga[1] = 0x10;
+ priv->bb_vga[2] = 0x0;
+ priv->bb_vga[3] = 0x0;
+
+ /* Fix VT3226 DFC system timing issue */
+ ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL2,
+ SOFTPWRCTL_RFLEOPT);
+ if (ret)
+ goto end;
+ } else {
+ goto end;
+ }
+
+ if (addr)
+ c_addr = addr;
+
+ ret = vnt_control_out_blocks(priv, VNT_REG_BLOCK_SIZE,
+ MESSAGE_REQUEST_BBREG, length, c_addr);
+ if (ret)
+ goto end;
+
+ ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0,
+ MESSAGE_REQUEST_BBAGC,
+ sizeof(vnt_vt3184_agc), vnt_vt3184_agc);
+ if (ret)
+ goto end;
+
+ if ((priv->rf_type == RF_VT3226) ||
+ (priv->rf_type == RF_VT3226D0)) {
+ data = (priv->rf_type == RF_VT3226D0) ? 0x11 : 0x23;
+
+ ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG,
+ MAC_REG_ITRTMSET, data);
+ if (ret)
+ goto end;
+
+ ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0));
+ if (ret)
+ goto end;
+ }
+
+ ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x04, 0x7f);
+ if (ret)
+ goto end;
+
+ ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01);
+ if (ret)
+ goto end;
+
+ ret = vnt_rf_table_download(priv);
+ if (ret)
+ goto end;
+
+ /* Fix for TX USB resets from vendors driver */
+ ret = vnt_control_in(priv, MESSAGE_TYPE_READ, USB_REG4,
+ MESSAGE_REQUEST_MEM, sizeof(data), &data);
+ if (ret)
+ goto end;
+
+ data |= 0x2;
+
+ ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, USB_REG4,
+ MESSAGE_REQUEST_MEM, sizeof(data), &data);
+
+end:
+ return ret;
+}
+
+/*
+ * Description: Set ShortSlotTime mode
+ *
+ * Parameters:
+ * In:
+ * priv - Device Structure
+ * Out:
+ * none
+ *
+ * Return Value: none
+ *
+ */
+int vnt_set_short_slot_time(struct vnt_private *priv)
+{
+ int ret = 0;
+ u8 bb_vga = 0;
+
+ if (priv->short_slot_time)
+ priv->bb_rx_conf &= 0xdf;
+ else
+ priv->bb_rx_conf |= 0x20;
+
+ ret = vnt_control_in_u8(priv, MESSAGE_REQUEST_BBREG, 0xe7, &bb_vga);
+ if (ret)
+ return ret;
+
+ if (bb_vga == priv->bb_vga[0])
+ priv->bb_rx_conf |= 0x20;
+
+ return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a,
+ priv->bb_rx_conf);
+}
+
+int vnt_set_vga_gain_offset(struct vnt_private *priv, u8 data)
+{
+ int ret;
+
+ ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xE7, data);
+ if (ret)
+ return ret;
+
+ /* patch for 3253B0 Baseband with Cardbus module */
+ if (priv->short_slot_time)
+ priv->bb_rx_conf &= 0xdf; /* 1101 1111 */
+ else
+ priv->bb_rx_conf |= 0x20; /* 0010 0000 */
+
+ return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a,
+ priv->bb_rx_conf);
+}
+
+/*
+ * Description: vnt_set_deep_sleep
+ *
+ * Parameters:
+ * In:
+ * priv - Device Structure
+ * Out:
+ * none
+ *
+ * Return Value: none
+ *
+ */
+int vnt_set_deep_sleep(struct vnt_private *priv)
+{
+ int ret = 0;
+
+ /* CR12 */
+ ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x17);
+ if (ret)
+ return ret;
+
+ /* CR13 */
+ return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0xB9);
+}
+
+int vnt_exit_deep_sleep(struct vnt_private *priv)
+{
+ int ret = 0;
+
+ /* CR12 */
+ ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x00);
+ if (ret)
+ return ret;
+
+ /* CR13 */
+ return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01);
+}
+
+int vnt_update_pre_ed_threshold(struct vnt_private *priv, int scanning)
+{
+ const struct vnt_threshold *threshold = NULL;
+ u8 length;
+ u8 cr_201, cr_206;
+ u8 ed_inx;
+ int ret;
+
+ switch (priv->rf_type) {
+ case RF_AL2230:
+ case RF_AL2230S:
+ threshold = al2230_vnt_threshold;
+ length = ARRAY_SIZE(al2230_vnt_threshold);
+ break;
+
+ case RF_VT3226:
+ case RF_VT3226D0:
+ threshold = vt3226_vnt_threshold;
+ length = ARRAY_SIZE(vt3226_vnt_threshold);
+ break;
+ }
+
+ if (!threshold)
+ return -EINVAL;
+
+ for (ed_inx = scanning ? 0 : length - 1; ed_inx > 0; ed_inx--) {
+ if (priv->bb_pre_ed_rssi <= threshold[ed_inx].bb_pre_ed_rssi)
+ break;
+ }
+
+ cr_201 = threshold[ed_inx].cr_201;
+ cr_206 = threshold[ed_inx].cr_206;
+
+ if (ed_inx == priv->bb_pre_ed_index && !scanning)
+ return 0;
+
+ priv->bb_pre_ed_index = ed_inx;
+
+ dev_dbg(&priv->usb->dev, "%s bb_pre_ed_rssi %d\n",
+ __func__, priv->bb_pre_ed_rssi);
+
+ ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xc9, cr_201);
+ if (ret)
+ return ret;
+
+ return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xce, cr_206);
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-18 22:29:12 +0000