#include <stdint.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <byteswap.h>
#include <ipxe/iobuf.h>
#include <ipxe/malloc.h>
#include <ipxe/pci.h>
#include <ipxe/net80211.h>
#include <ipxe/netdevice.h>
#include <ipxe/threewire.h>
#include "rtl818x.h"

Macros
#define	RTL818X_NR_B_RATES 4

#define	RTL818X_NR_RATES 12

#define	DIV_ROUND_UP(n, d) (((n)+(d)-1)/(d))

Functions
	FILE_LICENCE (GPL2_ONLY)

void	rtl818x_write_phy (struct net80211_device *dev, u8 addr, u32 data)

static void	rtl818x_handle_rx (struct net80211_device *dev)

static void	rtl818x_handle_tx (struct net80211_device *dev)

static void	rtl818x_poll (struct net80211_device *dev)

static int	rtl818x_tx (struct net80211_device dev, struct io_buffer iob)

void	rtl818x_set_anaparam (struct rtl818x_priv *priv, u32 anaparam)

static int	rtl818x_init_hw (struct net80211_device *dev)

static int	rtl818x_init_rx_ring (struct net80211_device *dev)

static void	rtl818x_free_rx_ring (struct net80211_device *dev)

static int	rtl818x_init_tx_ring (struct net80211_device *dev)

static void	rtl818x_free_tx_ring (struct net80211_device *dev)

static void	rtl818x_irq (struct net80211_device *dev, int enable)

static void	rtl818x_set_hwaddr (struct net80211_device dev, u8 hwaddr)

static int	rtl818x_start (struct net80211_device *dev)

static void	rtl818x_stop (struct net80211_device *dev)

static int	rtl818x_config (struct net80211_device *dev, int changed)

static int	rtl818x_spi_read_bit (struct bit_basher *basher, unsigned int bit_id)

static void	rtl818x_spi_write_bit (struct bit_basher *basher, unsigned int bit_id, unsigned long data)

int	rtl818x_probe (struct pci_device *pdev)

void	rtl818x_remove (struct pci_device *pdev)

Variables
static const u16	rtl818x_rates []

static const u8	rtl818x_eeprom_bits []

static struct bit_basher_operations	rtl818x_basher_ops

struct net80211_device_operations	rtl818x_operations

Macro Definition Documentation

◆ RTL818X_NR_B_RATES

#define RTL818X_NR_B_RATES 4

Definition at line 43 of file rtl818x.c.

◆ RTL818X_NR_RATES

#define RTL818X_NR_RATES 12

Definition at line 44 of file rtl818x.c.

◆ DIV_ROUND_UP

#define DIV_ROUND_UP	(	n,
		d
	)	(((n)+(d)-1)/(d))

Definition at line 162 of file rtl818x.c.

Function Documentation

◆ FILE_LICENCE()

FILE_LICENCE ( GPL2_ONLY )

◆ rtl818x_write_phy()

void rtl818x_write_phy	(	struct net80211_device *	dev,
		u8	addr,
		u32	data
	)

Definition at line 47 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         int i = 10;
         u32 buf;
 
         buf = (data << 8) | addr;
 
         rtl818x_iowrite32(priv, (u32 *)&priv->map->PHY[0], buf | 0x80);
         while (i--) {
                 rtl818x_iowrite32(priv, (u32 *)&priv->map->PHY[0], buf);
                 if (rtl818x_ioread8(priv, &priv->map->PHY[2]) == (data & 0xFF))
                         return;
         }
 }

References addr, data, priv, net80211_device::priv, rtl818x_ioread8(), and rtl818x_iowrite32().

Referenced by grf5101_rf_init(), grf5101_write_phy_antenna(), max2820_rf_init(), max2820_rf_set_channel(), max2820_rf_stop(), max2820_write_phy_antenna(), rtl8225_write_phy_cck(), rtl8225_write_phy_ofdm(), sa2400_rf_init(), and sa2400_write_phy_antenna().

◆ rtl818x_handle_rx()

static void rtl818x_handle_rx ( struct net80211_device * dev )

static

Definition at line 63 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         unsigned int count = RTL818X_RX_RING_SIZE;
 
         while (count--) {
                 struct rtl818x_rx_desc *entry = &priv->rx_ring[priv->rx_idx];
                 struct io_buffer *iob = priv->rx_buf[priv->rx_idx];
                 u32 flags = le32_to_cpu(entry->flags);
 
                 if (flags & RTL818X_RX_DESC_FLAG_OWN)
                         return;
 
                 if (flags & (RTL818X_RX_DESC_FLAG_DMA_FAIL |
                              RTL818X_RX_DESC_FLAG_FOF |
                              RTL818X_RX_DESC_FLAG_RX_ERR)) {
                         /* This is crappy hardware. The Linux driver
                            doesn't even log these. */
                         goto done;
                 } else if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR) {
                         /* This is actually a corrupt packet. */
                         DBG2("rtl818x RX:%d CRC fail: flags %08x\n",
                              priv->rx_idx, flags);
                         net80211_rx_err(dev, NULL, EIO);
                 } else {
                         u32 flags2 = le32_to_cpu(entry->flags2);
                         struct io_buffer *new_iob = alloc_iob(MAX_RX_SIZE);
                         if (!new_iob) {
                                 net80211_rx_err(dev, NULL, ENOMEM);
                                 goto done;
                         }
 
                         DBGP("rtl818x RX:%d success: flags %08x %08x\n",
                              priv->rx_idx, flags, flags2);
 
                         iob_put(iob, flags & 0xFFF);
 
                         net80211_rx(dev, iob, (flags2 >> 8) & 0x7f,
                                     rtl818x_rates[(flags >> 20) & 0xf]);
 
                         iob = new_iob;
                         priv->rx_buf[priv->rx_idx] = iob;
                 }
 
         done:
                 entry->rx_buf = cpu_to_le32(virt_to_bus(iob->data));
                 entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN | MAX_RX_SIZE);
 
                 if (priv->rx_idx == RTL818X_RX_RING_SIZE - 1)
                         entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
 
                 priv->rx_idx = (priv->rx_idx + 1) % RTL818X_RX_RING_SIZE;
         }
 }

References alloc_iob(), count, cpu_to_le32, io_buffer::data, DBG2, DBGP, done, EIO, ENOMEM, flags, rtl818x_rx_desc::flags, rtl818x_rx_desc::flags2, iob_put, le32_to_cpu, MAX_RX_SIZE, net80211_rx(), net80211_rx_err(), NULL, priv, net80211_device::priv, rtl818x_rates, RTL818X_RX_DESC_FLAG_CRC32_ERR, RTL818X_RX_DESC_FLAG_DMA_FAIL, RTL818X_RX_DESC_FLAG_EOR, RTL818X_RX_DESC_FLAG_FOF, RTL818X_RX_DESC_FLAG_OWN, RTL818X_RX_DESC_FLAG_RX_ERR, RTL818X_RX_RING_SIZE, rtl818x_rx_desc::rx_buf, and virt_to_bus().

Referenced by rtl818x_poll().

◆ rtl818x_handle_tx()

static void rtl818x_handle_tx ( struct net80211_device * dev )

static

Definition at line 118 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         unsigned int count = RTL818X_TX_RING_SIZE;
 
         while (count--) {
                 struct rtl818x_tx_desc *entry = &priv->tx_ring[priv->tx_cons];
                 struct io_buffer *iob = priv->tx_buf[priv->tx_cons];
                 u32 flags = le32_to_cpu(entry->flags);
                 int rc;
 
                 if ((flags & RTL818X_TX_DESC_FLAG_OWN) || !iob)
                         return;
 
                 rc = 0;
                 if (!(flags & RTL818X_TX_DESC_FLAG_TX_OK)) {
                         /* our packet was not ACKed properly */
                         rc = EIO;
                 }
 
                 net80211_tx_complete(dev, iob, flags & 0xFF, rc);
 
                 priv->tx_buf[priv->tx_cons] = NULL;
                 priv->tx_cons = (priv->tx_cons + 1) % RTL818X_TX_RING_SIZE;
         }
 }

References count, EIO, flags, rtl818x_tx_desc::flags, le32_to_cpu, net80211_tx_complete(), NULL, priv, net80211_device::priv, rc, RTL818X_TX_DESC_FLAG_OWN, RTL818X_TX_DESC_FLAG_TX_OK, and RTL818X_TX_RING_SIZE.

Referenced by rtl818x_poll().

◆ rtl818x_poll()

static void rtl818x_poll ( struct net80211_device * dev )

static

Definition at line 145 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         u16 reg = rtl818x_ioread16(priv, &priv->map->INT_STATUS);
 
         if (reg == 0xFFFF)
                 return;
 
         rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg);
 
         if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR))
                 rtl818x_handle_tx(dev);
 
         if (reg & (RTL818X_INT_RX_OK | RTL818X_INT_RX_ERR))
                 rtl818x_handle_rx(dev);
 }

References priv, net80211_device::priv, reg, rtl818x_handle_rx(), rtl818x_handle_tx(), RTL818X_INT_RX_ERR, RTL818X_INT_RX_OK, RTL818X_INT_TXN_ERR, RTL818X_INT_TXN_OK, rtl818x_ioread16(), and rtl818x_iowrite16().

◆ rtl818x_tx()

static int rtl818x_tx	(	struct net80211_device *	dev,
		struct io_buffer *	iob
	)

static

Definition at line 164 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         struct rtl818x_tx_desc *entry;
         u32 tx_flags;
         u16 plcp_len = 0;
         int len = iob_len(iob);
 
         tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS |
                 RTL818X_TX_DESC_FLAG_LS | (priv->hw_rate << 24) | len;
 
         if (priv->r8185) {
                 tx_flags |= RTL818X_TX_DESC_FLAG_DMA |
                             RTL818X_TX_DESC_FLAG_NO_ENC;
         } else {
                 unsigned int remainder;
 
                 plcp_len = DIV_ROUND_UP(16 * (len + 4),
                                         (dev->rates[dev->rate] * 2) / 10);
                 remainder = (16 * (len + 4)) %
                             ((dev->rates[dev->rate] * 2) / 10);
 
                 if (remainder > 0 && remainder <= 6)
                         plcp_len |= 1 << 15;
         }
 
         entry = &priv->tx_ring[priv->tx_prod];
 
         if (dev->phy_flags & NET80211_PHY_USE_PROTECTION) {
                 tx_flags |= RTL818X_TX_DESC_FLAG_CTS;
                 tx_flags |= priv->hw_rtscts_rate << 19;
                 entry->rts_duration = net80211_cts_duration(dev, len);
         } else {
                 entry->rts_duration = 0;
         }
 
         if (entry->flags & RTL818X_TX_DESC_FLAG_OWN) {
                 /* card hasn't processed the old packet yet! */
                 return -EBUSY;
         }
 
         priv->tx_buf[priv->tx_prod] = iob;
         priv->tx_prod = (priv->tx_prod + 1) % RTL818X_TX_RING_SIZE;
 
         entry->plcp_len = cpu_to_le16(plcp_len);
         entry->tx_buf = cpu_to_le32(virt_to_bus(iob->data));
         entry->frame_len = cpu_to_le32(len);
         entry->flags2 = /* alternate retry rate in 100kbps << 4 */ 0;
         entry->retry_limit = RTL818X_MAX_RETRIES;
         entry->flags = cpu_to_le32(tx_flags);
 
         rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << 5));
 
         return 0;
 }

References cpu_to_le16, cpu_to_le32, io_buffer::data, DIV_ROUND_UP, EBUSY, rtl818x_tx_desc::flags, rtl818x_tx_desc::flags2, rtl818x_tx_desc::frame_len, iob_len(), len, net80211_cts_duration(), NET80211_PHY_USE_PROTECTION, net80211_device::phy_flags, rtl818x_tx_desc::plcp_len, priv, net80211_device::priv, net80211_device::rate, net80211_device::rates, rtl818x_tx_desc::retry_limit, rtl818x_iowrite8(), RTL818X_MAX_RETRIES, RTL818X_TX_DESC_FLAG_CTS, RTL818X_TX_DESC_FLAG_DMA, RTL818X_TX_DESC_FLAG_FS, RTL818X_TX_DESC_FLAG_LS, RTL818X_TX_DESC_FLAG_NO_ENC, RTL818X_TX_DESC_FLAG_OWN, RTL818X_TX_RING_SIZE, rtl818x_tx_desc::rts_duration, rtl818x_tx_desc::tx_buf, and virt_to_bus().

◆ rtl818x_set_anaparam()

void rtl818x_set_anaparam	(	struct rtl818x_priv *	priv,
		u32	anaparam
	)

Definition at line 220 of file rtl818x.c.

 {
         u8 reg;
 
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
         reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
         rtl818x_iowrite8(priv, &priv->map->CONFIG3,
                  reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
         rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
         rtl818x_iowrite8(priv, &priv->map->CONFIG3,
                  reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 }

References priv, reg, RTL818X_CONFIG3_ANAPARAM_WRITE, RTL818X_EEPROM_CMD_CONFIG, RTL818X_EEPROM_CMD_NORMAL, rtl818x_ioread8(), rtl818x_iowrite32(), and rtl818x_iowrite8().

Referenced by grf5101_rf_init(), grf5101_rf_stop(), rtl818x_init_hw(), rtl8225_rf_init(), rtl8225z2_rf_init(), and sa2400_rf_init().

◆ rtl818x_init_hw()

static int rtl818x_init_hw ( struct net80211_device * dev )

static

Definition at line 234 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         u16 reg;
 
         rtl818x_iowrite8(priv, &priv->map->CMD, 0);
         rtl818x_ioread8(priv, &priv->map->CMD);
         mdelay(10);
 
         /* reset */
         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
         rtl818x_ioread8(priv, &priv->map->CMD);
 
         reg = rtl818x_ioread8(priv, &priv->map->CMD);
         reg &= (1 << 1);
         reg |= RTL818X_CMD_RESET;
         rtl818x_iowrite8(priv, &priv->map->CMD, RTL818X_CMD_RESET);
         rtl818x_ioread8(priv, &priv->map->CMD);
         mdelay(200);
 
         /* check success of reset */
         if (rtl818x_ioread8(priv, &priv->map->CMD) & RTL818X_CMD_RESET) {
                 DBG("rtl818x %s: reset timeout!\n", dev->netdev->name);
                 return -ETIMEDOUT;
         }
 
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
         rtl818x_ioread8(priv, &priv->map->CMD);
         mdelay(200);
 
         if (rtl818x_ioread8(priv, &priv->map->CONFIG3) & (1 << 3)) {
                 /* For cardbus */
                 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
                 reg |= 1 << 1;
                 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
                 reg = rtl818x_ioread16(priv, &priv->map->FEMR);
                 reg |= (1 << 15) | (1 << 14) | (1 << 4);
                 rtl818x_iowrite16(priv, &priv->map->FEMR, reg);
         }
 
         rtl818x_iowrite8(priv, &priv->map->MSR, 0);
 
         if (!priv->r8185)
                 rtl818x_set_anaparam(priv, priv->anaparam);
 
         rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
         rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring_dma);
 
         /* TODO: necessary? specs indicate not */
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
         reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
         rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg & ~(1 << 3));
         if (priv->r8185) {
                 reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
                 rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg | (1 << 4));
         }
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 
         /* TODO: set CONFIG5 for calibrating AGC on rtl8180 + philips radio? */
 
         /* TODO: turn off hw wep on rtl8180 */
 
         rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
 
         if (priv->r8185) {
                 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
                 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
                 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
 
                 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
 
                 /* TODO: set ClkRun enable? necessary? */
                 reg = rtl818x_ioread8(priv, &priv->map->GP_ENABLE);
                 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, reg & ~(1 << 6));
                 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
                 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
                 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | (1 << 2));
                 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
         } else {
                 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x1);
                 rtl818x_iowrite8(priv, &priv->map->SECURITY, 0);
 
                 rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6);
                 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C);
         }
 
         priv->rf->init(dev);
         if (priv->r8185)
                 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
         return 0;
 }

References DBG, ETIMEDOUT, mdelay(), net_device::name, net80211_device::netdev, priv, net80211_device::priv, reg, RTL818X_CMD_RESET, RTL818X_EEPROM_CMD_CONFIG, RTL818X_EEPROM_CMD_LOAD, RTL818X_EEPROM_CMD_NORMAL, rtl818x_ioread16(), rtl818x_ioread8(), rtl818x_iowrite16(), rtl818x_iowrite32(), rtl818x_iowrite8(), and rtl818x_set_anaparam().

Referenced by rtl818x_start().

◆ rtl818x_init_rx_ring()

static int rtl818x_init_rx_ring ( struct net80211_device * dev )

static

Definition at line 326 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         struct rtl818x_rx_desc *entry;
         int i;
 
         priv->rx_ring = malloc_phys(sizeof(*priv->rx_ring) * RTL818X_RX_RING_SIZE,
                                     RTL818X_RING_ALIGN);
         priv->rx_ring_dma = virt_to_bus(priv->rx_ring);
         if (!priv->rx_ring) {
                 DBG("rtl818x %s: cannot allocate RX ring\n", dev->netdev->name);
                 return -ENOMEM;
         }
 
         memset(priv->rx_ring, 0, sizeof(*priv->rx_ring) * RTL818X_RX_RING_SIZE);
         priv->rx_idx = 0;
 
         for (i = 0; i < RTL818X_RX_RING_SIZE; i++) {
                 struct io_buffer *iob = alloc_iob(MAX_RX_SIZE);
                 entry = &priv->rx_ring[i];
                 if (!iob)
                         return -ENOMEM;
 
                 priv->rx_buf[i] = iob;
                 entry->rx_buf = cpu_to_le32(virt_to_bus(iob->data));
                 entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
                                            MAX_RX_SIZE);
         }
         entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
         return 0;
 }

References alloc_iob(), cpu_to_le32, io_buffer::data, DBG, ENOMEM, rtl818x_rx_desc::flags, malloc_phys(), MAX_RX_SIZE, memset(), net_device::name, net80211_device::netdev, priv, net80211_device::priv, RTL818X_RING_ALIGN, RTL818X_RX_DESC_FLAG_EOR, RTL818X_RX_DESC_FLAG_OWN, RTL818X_RX_RING_SIZE, rtl818x_rx_desc::rx_buf, and virt_to_bus().

Referenced by rtl818x_start().

◆ rtl818x_free_rx_ring()

static void rtl818x_free_rx_ring ( struct net80211_device * dev )

static

Definition at line 358 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         int i;
 
         for (i = 0; i < RTL818X_RX_RING_SIZE; i++) {
                 free_iob(priv->rx_buf[i]);
                 priv->rx_buf[i] = NULL;
         }
 
         free_phys(priv->rx_ring, sizeof(*priv->rx_ring) * RTL818X_RX_RING_SIZE);
         priv->rx_ring = NULL;
 }

References free_iob(), free_phys(), NULL, priv, net80211_device::priv, and RTL818X_RX_RING_SIZE.

Referenced by rtl818x_start(), and rtl818x_stop().

◆ rtl818x_init_tx_ring()

static int rtl818x_init_tx_ring ( struct net80211_device * dev )

static

Definition at line 372 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         int i;
 
         priv->tx_ring = malloc_phys(sizeof(*priv->tx_ring) * RTL818X_TX_RING_SIZE,
                                     RTL818X_RING_ALIGN);
         priv->tx_ring_dma = virt_to_bus(priv->tx_ring);
         if (!priv->tx_ring) {
                 DBG("rtl818x %s: cannot allocate TX ring\n", dev->netdev->name);
                 return -ENOMEM;
         }
 
         memset(priv->tx_ring, 0, sizeof(*priv->tx_ring) * RTL818X_TX_RING_SIZE);
         priv->tx_prod = priv->tx_cons = 0;
 
         for (i = 0; i < RTL818X_TX_RING_SIZE; i++)
                 priv->tx_ring[i].next_tx_desc = cpu_to_le32(priv->tx_ring_dma +
                                 ((i + 1) % RTL818X_TX_RING_SIZE) * sizeof(*priv->tx_ring));
 
         return 0;
 }

References cpu_to_le32, DBG, ENOMEM, malloc_phys(), memset(), net_device::name, net80211_device::netdev, priv, net80211_device::priv, RTL818X_RING_ALIGN, RTL818X_TX_RING_SIZE, and virt_to_bus().

Referenced by rtl818x_start().

◆ rtl818x_free_tx_ring()

static void rtl818x_free_tx_ring ( struct net80211_device * dev )

static

Definition at line 395 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         int i;
 
         for (i = 0; i < RTL818X_TX_RING_SIZE; i++) {
                 if (priv->tx_buf[i])
                         net80211_tx_complete(dev, priv->tx_buf[i], 0, ECANCELED);
                 priv->tx_buf[i] = NULL;
         }
 
         free_phys(priv->tx_ring, sizeof(*priv->tx_ring) * RTL818X_TX_RING_SIZE);
         priv->tx_ring = NULL;
 }

References ECANCELED, free_phys(), net80211_tx_complete(), NULL, priv, net80211_device::priv, and RTL818X_TX_RING_SIZE.

Referenced by rtl818x_start(), and rtl818x_stop().

◆ rtl818x_irq()

static void rtl818x_irq	(	struct net80211_device *	dev,
		int	enable
	)

static

Definition at line 410 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         rtl818x_iowrite16(priv, &priv->map->INT_MASK, enable? 0xFFFF : 0);
 }

References priv, net80211_device::priv, and rtl818x_iowrite16().

Referenced by rtl818x_stop().

◆ rtl818x_set_hwaddr()

static void rtl818x_set_hwaddr	(	struct net80211_device *	dev,
		u8 *	hwaddr
	)

static

Definition at line 417 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
         rtl818x_iowrite32(priv, (u32 *)&priv->map->MAC[0],
                           le32_to_cpu(*(u32 *)hwaddr));
         rtl818x_iowrite16(priv, (u16 *)&priv->map->MAC[4],
                           le16_to_cpu(*(u16 *)(hwaddr + 4)));
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 }

References le16_to_cpu, le32_to_cpu, priv, net80211_device::priv, RTL818X_EEPROM_CMD_CONFIG, RTL818X_EEPROM_CMD_NORMAL, rtl818x_iowrite16(), rtl818x_iowrite32(), and rtl818x_iowrite8().

Referenced by rtl818x_start().

◆ rtl818x_start()

static int rtl818x_start ( struct net80211_device * dev )

static

Definition at line 428 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         int ret;
         u32 reg;
 
         ret = rtl818x_init_rx_ring(dev);
         if (ret)
                 return ret;
 
         ret = rtl818x_init_tx_ring(dev);
         if (ret)
                 goto err_free_rings;
 
         ret = rtl818x_init_hw(dev);
         if (ret)
                 goto err_free_rings;
 
         rtl818x_set_hwaddr(dev, dev->netdev->ll_addr);
 
         rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
         rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring_dma);
 
         rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
 
         rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
         rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
 
         reg = RTL818X_RX_CONF_ONLYERLPKT |
               RTL818X_RX_CONF_RX_AUTORESETPHY |
               RTL818X_RX_CONF_MGMT |
               RTL818X_RX_CONF_DATA |
               (7 << 8 /* MAX RX DMA */) |
               RTL818X_RX_CONF_BROADCAST |
               RTL818X_RX_CONF_NICMAC;
 
         if (priv->r8185)
                 reg |= RTL818X_RX_CONF_CSDM1 | RTL818X_RX_CONF_CSDM2;
         else {
                 reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE1)
                         ? RTL818X_RX_CONF_CSDM1 : 0;
                 reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE2)
                         ? RTL818X_RX_CONF_CSDM2 : 0;
         }
 
         priv->rx_conf = reg;
         rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
 
         if (priv->r8185) {
                 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
                 reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
                 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
                 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
 
                 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
                 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
                 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
                 reg |=  RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
                 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
 
                 /* disable early TX */
                 rtl818x_iowrite8(priv, (u8 *)priv->map + 0xec, 0x3f);
         }
 
         reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
         reg |= (6 << 21 /* MAX TX DMA */) |
                RTL818X_TX_CONF_NO_ICV;
 
         if (priv->r8185)
                 reg &= ~RTL818X_TX_CONF_PROBE_DTS;
         else
                 reg &= ~RTL818X_TX_CONF_HW_SEQNUM;
 
         /* different meaning, same value on both rtl8185 and rtl8180 */
         reg &= ~RTL818X_TX_CONF_SAT_HWPLCP;
 
         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
 
         reg = rtl818x_ioread8(priv, &priv->map->CMD);
         reg |= RTL818X_CMD_RX_ENABLE;
         reg |= RTL818X_CMD_TX_ENABLE;
         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 
         DBG("%s rtl818x: started\n", dev->netdev->name);
 
         return 0;
 
  err_free_rings:
         rtl818x_free_rx_ring(dev);
         if (priv->tx_ring)
                 rtl818x_free_tx_ring(dev);
 
         DBG("%s rtl818x: failed to start\n", dev->netdev->name);
 
         return ret;
 }

References DBG, net_device::ll_addr, net_device::name, net80211_device::netdev, priv, net80211_device::priv, reg, RF_PARAM_CARRIERSENSE1, RF_PARAM_CARRIERSENSE2, RTL818X_CMD_RX_ENABLE, RTL818X_CMD_TX_ENABLE, RTL818X_CW_CONF_PERPACKET_CW_SHIFT, RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT, rtl818x_free_rx_ring(), rtl818x_free_tx_ring(), rtl818x_init_hw(), rtl818x_init_rx_ring(), rtl818x_init_tx_ring(), rtl818x_ioread32(), rtl818x_ioread8(), rtl818x_iowrite16(), rtl818x_iowrite32(), rtl818x_iowrite8(), RTL818X_RX_CONF_BROADCAST, RTL818X_RX_CONF_CSDM1, RTL818X_RX_CONF_CSDM2, RTL818X_RX_CONF_DATA, RTL818X_RX_CONF_MGMT, RTL818X_RX_CONF_NICMAC, RTL818X_RX_CONF_ONLYERLPKT, RTL818X_RX_CONF_RX_AUTORESETPHY, rtl818x_set_hwaddr(), RTL818X_TX_AGC_CTL_FEEDBACK_ANT, RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT, RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT, RTL818X_TX_CONF_HW_SEQNUM, RTL818X_TX_CONF_NO_ICV, RTL818X_TX_CONF_PROBE_DTS, and RTL818X_TX_CONF_SAT_HWPLCP.

◆ rtl818x_stop()

static void rtl818x_stop ( struct net80211_device * dev )

static

Definition at line 525 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         u8 reg;
 
         rtl818x_irq(dev, 0);
 
         reg = rtl818x_ioread8(priv, &priv->map->CMD);
         reg &= ~RTL818X_CMD_TX_ENABLE;
         reg &= ~RTL818X_CMD_RX_ENABLE;
         rtl818x_iowrite8(priv, &priv->map->CMD, reg);
 
         priv->rf->stop(dev);
 
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
         reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
         rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 
         rtl818x_free_rx_ring(dev);
         rtl818x_free_tx_ring(dev);
 }

References priv, net80211_device::priv, reg, RTL818X_CMD_RX_ENABLE, RTL818X_CMD_TX_ENABLE, RTL818X_CONFIG4_VCOOFF, RTL818X_EEPROM_CMD_CONFIG, RTL818X_EEPROM_CMD_NORMAL, rtl818x_free_rx_ring(), rtl818x_free_tx_ring(), rtl818x_ioread8(), rtl818x_iowrite8(), and rtl818x_irq().

◆ rtl818x_config()

static int rtl818x_config	(	struct net80211_device *	dev,
		int	changed
	)

static

Definition at line 548 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = dev->priv;
         int i;
 
         if (changed & NET80211_CFG_CHANNEL)
                 priv->rf->set_chan(dev, &dev->channels[dev->channel]);
 
         if (changed & NET80211_CFG_ASSOC) {
                 for (i = 0; i < ETH_ALEN; i++)
                         rtl818x_iowrite8(priv, &priv->map->BSSID[i], dev->bssid[i]);
                 rtl818x_iowrite8(priv, &priv->map->MSR,
                                  dev->state & NET80211_ASSOCIATED?
                                         RTL818X_MSR_INFRA : RTL818X_MSR_NO_LINK);
         }
 
         if (changed & NET80211_CFG_PHY_PARAMS)
                 priv->rf->conf_erp(dev);
 
         if (changed & NET80211_CFG_RATE) {
                 /* figure out the hardware rate number for the new
                    logical rate */
                 int hw_rate;
                 for (hw_rate = 0; hw_rate < RTL818X_NR_RATES &&
                              rtl818x_rates[hw_rate] != dev->rates[dev->rate];
                      hw_rate++)
                         ;
                 if (hw_rate >= RTL818X_NR_RATES)
                         return -EINVAL;
 
                 priv->hw_rate = hw_rate;
 
                 /* and the RTS/CTS rate */
                 for (hw_rate = 0; hw_rate < RTL818X_NR_RATES &&
                              rtl818x_rates[hw_rate] !=
                                 dev->rates[dev->rtscts_rate];
                      hw_rate++)
                         ;
                 if (hw_rate >= RTL818X_NR_RATES)
                         hw_rate = priv->hw_rate;
 
                 priv->hw_rtscts_rate = hw_rate;
         }
 
         return 0;
 }

References net80211_device::bssid, net80211_device::channel, net80211_device::channels, EINVAL, ETH_ALEN, rtl818x_priv::hw_rate, NET80211_ASSOCIATED, NET80211_CFG_ASSOC, NET80211_CFG_CHANNEL, NET80211_CFG_PHY_PARAMS, NET80211_CFG_RATE, priv, net80211_device::priv, net80211_device::rate, net80211_device::rates, rtl818x_iowrite8(), RTL818X_MSR_INFRA, RTL818X_MSR_NO_LINK, RTL818X_NR_RATES, rtl818x_rates, net80211_device::rtscts_rate, and net80211_device::state.

◆ rtl818x_spi_read_bit()

static int rtl818x_spi_read_bit	(	struct bit_basher *	basher,
		unsigned int	bit_id
	)

static

Definition at line 602 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = container_of(basher, struct rtl818x_priv,
                                                  spibit.basher);
 
         u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
         return reg & rtl818x_eeprom_bits[bit_id];
 }

References spi_bit_basher::basher, container_of, priv, reg, rtl818x_eeprom_bits, rtl818x_ioread8(), and rtl818x_priv::spibit.

◆ rtl818x_spi_write_bit()

static void rtl818x_spi_write_bit	(	struct bit_basher *	basher,
		unsigned int	bit_id,
		unsigned long	data
	)

static

Definition at line 611 of file rtl818x.c.

 {
         struct rtl818x_priv *priv = container_of(basher, struct rtl818x_priv,
                                                  spibit.basher);
 
         u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
         u8 mask = rtl818x_eeprom_bits[bit_id];
         reg = (reg & ~mask) | (data & mask);
 
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
 
         rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
         udelay(10);
 }

References spi_bit_basher::basher, container_of, data, priv, reg, rtl818x_eeprom_bits, rtl818x_ioread8(), rtl818x_iowrite8(), rtl818x_priv::spibit, and udelay().

◆ rtl818x_probe()

int rtl818x_probe ( struct pci_device * pdev )

Definition at line 653 of file rtl818x.c.

 {
         struct net80211_device *dev;
         struct rtl818x_priv *priv;
         struct rtl818x_rf_ops *rf;
         int err, i;
         const char *chip_name;
         u32 reg;
         u16 eeprom_val;
         struct net80211_hw_info *hwinfo;
 
         hwinfo = zalloc(sizeof(*hwinfo));
         if (!hwinfo) {
                 DBG("rtl818x: hwinfo alloc failed\n");
                 err = -ENOMEM;
                 goto err_alloc_hwinfo;
         }
 
         adjust_pci_device(pdev);
 
         dev = net80211_alloc(sizeof(*priv));
         if (!dev) {
                 DBG("rtl818x: net80211 alloc failed\n");
                 err = -ENOMEM;
                 goto err_alloc_dev;
         }
 
         priv = dev->priv;
         priv->pdev = pdev;
         dev->netdev->dev = &pdev->dev;
 
         priv->map = (struct rtl818x_csr *)pdev->ioaddr;
         if (!priv->map) {
                 DBG("rtl818x: cannot find device memory\n");
                 err = -ENXIO;
                 goto err_free_dev;
         }
 
         reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
         reg &= RTL818X_TX_CONF_HWVER_MASK;
         switch (reg) {
         case RTL818X_TX_CONF_R8180_ABCD:
                 chip_name = "0";
                 break;
         case RTL818X_TX_CONF_R8180_F:
                 chip_name = "0vF";
                 break;
         case RTL818X_TX_CONF_R8185_ABC:
                 chip_name = "5";
                 break;
         case RTL818X_TX_CONF_R8185_D:
                 chip_name = "5vD";
                 break;
         default:
                 DBG("rtl818x: Unknown chip! (0x%x)\n", reg >> 25);
                 err = -ENOSYS;
                 goto err_free_dev;
         }
 
         priv->r8185 = reg & RTL818X_TX_CONF_R8185_ABC;
 
         hwinfo->bands = NET80211_BAND_BIT_2GHZ;
         hwinfo->flags = NET80211_HW_RX_HAS_FCS;
         hwinfo->signal_type = NET80211_SIGNAL_ARBITRARY;
         hwinfo->signal_max = 65;
         hwinfo->channel_change_time = 1000;
 
         memcpy(hwinfo->rates[NET80211_BAND_2GHZ], rtl818x_rates,
                sizeof(*rtl818x_rates) * RTL818X_NR_RATES);
 
         if (priv->r8185) {
                 hwinfo->modes = NET80211_MODE_B | NET80211_MODE_G;
                 hwinfo->nr_rates[NET80211_BAND_2GHZ] = RTL818X_NR_RATES;
         } else {
                 hwinfo->modes = NET80211_MODE_B;
                 hwinfo->nr_rates[NET80211_BAND_2GHZ] = RTL818X_NR_B_RATES;
         }
 
         priv->spibit.basher.op = &rtl818x_basher_ops;
         priv->spibit.bus.mode = SPI_MODE_THREEWIRE;
         init_spi_bit_basher(&priv->spibit);
 
         DBG2("rtl818x RX_CONF: %08x\n", rtl818x_ioread32(priv, &priv->map->RX_CONF));
 
         if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
                 init_at93c66(&priv->eeprom, 16);
         else
                 init_at93c46(&priv->eeprom, 16);
         priv->eeprom.bus = &priv->spibit.bus;
 
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_PROGRAM);
         rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
         udelay(10);
 
         nvs_read(&priv->eeprom.nvs, 0x06, &eeprom_val, 2);
         DBG2("rtl818x eeprom val = %04x\n", eeprom_val);
         eeprom_val &= 0xFF;
 
         priv->rf = NULL;
         for_each_table_entry(rf, RTL818X_RF_DRIVERS) {
                 if (rf->id == eeprom_val) {
                         priv->rf = rf;
                         break;
                 }
         }
 
         if (!priv->rf) {
 #if DBGLVL_MAX
                 if (eeprom_val < RTL818X_NR_RF_NAMES &&
                     rtl818x_rf_names[eeprom_val] != NULL)
                         DBG("rtl818x: %s RF frontend not supported!\n",
                             rtl818x_rf_names[eeprom_val]);
                 else
                         DBG("rtl818x: RF frontend #%d not recognized!\n",
                             eeprom_val);
 #endif
 
                 err = -ENOSYS;
                 goto err_free_dev;
         }
 
         nvs_read(&priv->eeprom.nvs, 0x17, &eeprom_val, 2);
         priv->csthreshold = eeprom_val >> 8;
         if (!priv->r8185) {
                 nvs_read(&priv->eeprom.nvs, 0xD, &priv->anaparam, 4);
                 nvs_read(&priv->eeprom.nvs, 0x19, &priv->rfparam, 2);
                 priv->anaparam = le32_to_cpu(priv->anaparam);
                 priv->rfparam = le16_to_cpu(priv->rfparam);
         }
 
         /* read the MAC address */
         nvs_read(&priv->eeprom.nvs, 0x7, hwinfo->hwaddr, 6);
 
         /* CCK TX power */
         for (i = 0; i < 14; i += 2) {
                 u16 txpwr;
                 nvs_read(&priv->eeprom.nvs, 0x10 + (i >> 1), &txpwr, 2);
                 priv->txpower[i] = txpwr & 0xFF;
                 priv->txpower[i + 1] = txpwr >> 8;
         }
 
         /* OFDM TX power */
         if (priv->r8185) {
                 for (i = 0; i < 14; i += 2) {
                         u16 txpwr;
                         nvs_read(&priv->eeprom.nvs, 0x20 + (i >> 1), &txpwr, 2);
                         priv->txpower[i] |= (txpwr & 0xFF) << 8;
                         priv->txpower[i + 1] |= txpwr & 0xFF00;
                 }
         }
 
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 
         err = net80211_register(dev, &rtl818x_operations, hwinfo);
         if (err) {
                 DBG("rtl818x: cannot register device\n");
                 goto err_free_dev;
         }
 
         free(hwinfo);
 
         DBG("rtl818x: Realtek RTL818%s (RF chip %s) with address %s\n",
             chip_name, priv->rf->name, netdev_addr(dev->netdev));
 
         return 0;
 
  err_free_dev:
         pci_set_drvdata(pdev, NULL);
         net80211_free(dev);
  err_alloc_dev:
         free(hwinfo);
  err_alloc_hwinfo:
         return err;
 }

◆ rtl818x_remove()

void rtl818x_remove ( struct pci_device * pdev )

Definition at line 828 of file rtl818x.c.

 {
         struct net80211_device *dev = pci_get_drvdata(pdev);
 
         if (!dev)
                 return;
 
         net80211_unregister(dev);
         net80211_free(dev);
 }

References net80211_free(), net80211_unregister(), and pci_get_drvdata().

Variable Documentation

◆ rtl818x_rates

const u16 rtl818x_rates[]

static

Initial value:

= {
        10, 20, 55, 110, 
        60, 90, 120, 180, 240, 360, 480, 540, 
        0, 0, 0, 0,             
}

Definition at line 38 of file rtl818x.c.

Referenced by rtl818x_config(), rtl818x_handle_rx(), and rtl818x_probe().

◆ rtl818x_eeprom_bits

const u8 rtl818x_eeprom_bits[]

static

Initial value:

= {
        [SPI_BIT_SCLK] = RTL818X_EEPROM_CMD_CK,
        [SPI_BIT_MISO] = RTL818X_EEPROM_CMD_READ,
        [SPI_BIT_MOSI] = RTL818X_EEPROM_CMD_WRITE,
        [SPI_BIT_SS(0)] = RTL818X_EEPROM_CMD_CS,
}

Definition at line 595 of file rtl818x.c.

Referenced by rtl818x_spi_read_bit(), and rtl818x_spi_write_bit().

◆ rtl818x_basher_ops

struct bit_basher_operations rtl818x_basher_ops

static

Initial value:

= {
        .read = rtl818x_spi_read_bit,
        .write = rtl818x_spi_write_bit,
}

Definition at line 627 of file rtl818x.c.

Referenced by rtl818x_probe().

◆ rtl818x_operations

struct net80211_device_operations rtl818x_operations

Initial value:

= {
        .open = rtl818x_start,
        .close = rtl818x_stop,
        .transmit = rtl818x_tx,
        .poll = rtl818x_poll,
        .irq = rtl818x_irq,
        .config = rtl818x_config,
}

Definition at line 644 of file rtl818x.c.

Referenced by rtl818x_probe().

Macros

Functions

Variables

Macro Definition Documentation

◆ RTL818X_NR_B_RATES

◆ RTL818X_NR_RATES

◆ DIV_ROUND_UP

Function Documentation

◆ FILE_LICENCE()

◆ rtl818x_write_phy()

◆ rtl818x_handle_rx()

◆ rtl818x_handle_tx()

◆ rtl818x_poll()

◆ rtl818x_tx()

◆ rtl818x_set_anaparam()

◆ rtl818x_init_hw()

◆ rtl818x_init_rx_ring()

◆ rtl818x_free_rx_ring()

◆ rtl818x_init_tx_ring()

◆ rtl818x_free_tx_ring()

◆ rtl818x_irq()

◆ rtl818x_set_hwaddr()

◆ rtl818x_start()

◆ rtl818x_stop()

◆ rtl818x_config()

◆ rtl818x_spi_read_bit()

◆ rtl818x_spi_write_bit()

◆ rtl818x_probe()

◆ rtl818x_remove()

Variable Documentation

◆ rtl818x_rates

◆ rtl818x_eeprom_bits

◆ rtl818x_basher_ops

◆ rtl818x_operations