diff options
Diffstat (limited to 'bsp/dm365/drivers/davinci_emac.c')
| -rw-r--r-- | bsp/dm365/drivers/davinci_emac.c | 2142 |
1 files changed, 1071 insertions, 1071 deletions
diff --git a/bsp/dm365/drivers/davinci_emac.c b/bsp/dm365/drivers/davinci_emac.c index 9043493290..7ad539fb09 100644 --- a/bsp/dm365/drivers/davinci_emac.c +++ b/bsp/dm365/drivers/davinci_emac.c @@ -4,8 +4,8 @@ * SPDX-License-Identifier: Apache-2.0 * * Change Logs: - * Date Author Notes - * 2011-01-13 weety first version + * Date Author Notes + * 2011-01-13 weety first version */ @@ -15,8 +15,8 @@ #include <dm36x.h> #include "davinci_emac.h" -#define MMU_NOCACHE_ADDR(a) ((rt_uint32_t)a | (1UL<<29)) -#define CACHE_LINE_SIZE 32 +#define MMU_NOCACHE_ADDR(a) ((rt_uint32_t)a | (1UL<<29)) +#define CACHE_LINE_SIZE 32 extern void mmu_clean_dcache(rt_uint32_t buffer, rt_uint32_t size); extern void mmu_invalidate_dcache(rt_uint32_t buffer, rt_uint32_t size); @@ -24,22 +24,22 @@ extern void mmu_invalidate_dcache(rt_uint32_t buffer, rt_uint32_t size); /* EMAC internal utility function */ static inline rt_uint32_t emac_virt_to_phys(void *addr) { - return (rt_uint32_t)addr; + return (rt_uint32_t)addr; } static inline rt_uint32_t virt_to_phys(void *addr) { - return (rt_uint32_t)addr; + return (rt_uint32_t)addr; } /* Cache macros - Packet buffers would be from pbuf pool which is cached */ #define EMAC_VIRT_NOCACHE(addr) (addr) #define EMAC_CACHE_INVALIDATE(addr, size) \ - mmu_invalidate_dcache(addr, size) + mmu_invalidate_dcache(addr, size) #define EMAC_CACHE_WRITEBACK(addr, size) \ - mmu_clean_dcache(addr, size) + mmu_clean_dcache(addr, size) #define EMAC_CACHE_WRITEBACK_INVALIDATE(addr, size) \ - mmu_clean_invalidated_dcache(addr, size) + mmu_clean_invalidated_dcache(addr, size) /* DM644x does not have BD's in cached memory - so no cache functions */ #define BD_CACHE_INVALIDATE(addr, size) @@ -53,34 +53,34 @@ static struct emac_priv davinci_emac_device; static unsigned long emac_bus_frequency; static unsigned long mdio_max_freq; -#define EMAC_AUTONEG_TIMEOUT 5000000 -#define EMAC_LINK_TIMEOUT 500000 +#define EMAC_AUTONEG_TIMEOUT 5000000 +#define EMAC_LINK_TIMEOUT 500000 /* EMAC TX Host Error description strings */ static char *emac_txhost_errcodes[16] = { - "No error", "SOP error", "Ownership bit not set in SOP buffer", - "Zero Next Buffer Descriptor Pointer Without EOP", - "Zero Buffer Pointer", "Zero Buffer Length", "Packet Length Error", - "Reserved", "Reserved", "Reserved", "Reserved", "Reserved", - "Reserved", "Reserved", "Reserved", "Reserved" + "No error", "SOP error", "Ownership bit not set in SOP buffer", + "Zero Next Buffer Descriptor Pointer Without EOP", + "Zero Buffer Pointer", "Zero Buffer Length", "Packet Length Error", + "Reserved", "Reserved", "Reserved", "Reserved", "Reserved", + "Reserved", "Reserved", "Reserved", "Reserved" }; /* EMAC RX Host Error description strings */ static char *emac_rxhost_errcodes[16] = { - "No error", "Reserved", "Ownership bit not set in input buffer", - "Reserved", "Zero Buffer Pointer", "Reserved", "Reserved", - "Reserved", "Reserved", "Reserved", "Reserved", "Reserved", - "Reserved", "Reserved", "Reserved", "Reserved" + "No error", "Reserved", "Ownership bit not set in input buffer", + "Reserved", "Zero Buffer Pointer", "Reserved", "Reserved", + "Reserved", "Reserved", "Reserved", "Reserved", "Reserved", + "Reserved", "Reserved", "Reserved", "Reserved" }; -#define emac_read(reg) davinci_readl(priv->emac_base + (reg)) +#define emac_read(reg) davinci_readl(priv->emac_base + (reg)) #define emac_write(reg, val) davinci_writel(val, priv->emac_base + (reg)) -#define emac_ctrl_read(reg) davinci_readl((priv->ctrl_base + (reg))) +#define emac_ctrl_read(reg) davinci_readl((priv->ctrl_base + (reg))) #define emac_ctrl_write(reg, val) davinci_writel(val, (priv->ctrl_base + (reg))) -#define emac_mdio_read(reg) davinci_readl(priv->mdio_base + (reg)) +#define emac_mdio_read(reg) davinci_readl(priv->mdio_base + (reg)) #define emac_mdio_write(reg, val) davinci_writel(val, (priv->mdio_base + (reg))) static void emac_int_enable(struct emac_priv *priv); @@ -91,74 +91,74 @@ static int emac_init_txch(struct emac_priv *priv, rt_uint32_t ch); /* Wait until mdio is ready for next command */ #define MDIO_WAIT_FOR_USER_ACCESS\ - while ((emac_mdio_read((MDIO_USERACCESS(0))) &\ - MDIO_USERACCESS_GO) != 0) + while ((emac_mdio_read((MDIO_USERACCESS(0))) &\ + MDIO_USERACCESS_GO) != 0) static int emac_mii_read(struct emac_priv *priv, int phy_id, int phy_reg) { - unsigned int phy_data = 0; - unsigned int phy_control; + unsigned int phy_data = 0; + unsigned int phy_control; - /* Wait until mdio is ready for next command */ - MDIO_WAIT_FOR_USER_ACCESS; + /* Wait until mdio is ready for next command */ + MDIO_WAIT_FOR_USER_ACCESS; - phy_control = (MDIO_USERACCESS_GO | - MDIO_USERACCESS_READ | - ((phy_reg << 21) & MDIO_USERACCESS_REGADR) | - ((phy_id << 16) & MDIO_USERACCESS_PHYADR) | - (phy_data & MDIO_USERACCESS_DATA)); - emac_mdio_write(MDIO_USERACCESS(0), phy_control); + phy_control = (MDIO_USERACCESS_GO | + MDIO_USERACCESS_READ | + ((phy_reg << 21) & MDIO_USERACCESS_REGADR) | + ((phy_id << 16) & MDIO_USERACCESS_PHYADR) | + (phy_data & MDIO_USERACCESS_DATA)); + emac_mdio_write(MDIO_USERACCESS(0), phy_control); - /* Wait until mdio is ready for next command */ - MDIO_WAIT_FOR_USER_ACCESS; + /* Wait until mdio is ready for next command */ + MDIO_WAIT_FOR_USER_ACCESS; - return emac_mdio_read(MDIO_USERACCESS(0)) & MDIO_USERACCESS_DATA; + return emac_mdio_read(MDIO_USERACCESS(0)) & MDIO_USERACCESS_DATA; } static int emac_mii_write(struct emac_priv *priv, int phy_id, - int phy_reg, rt_uint16_t phy_data) + int phy_reg, rt_uint16_t phy_data) { - unsigned int control; + unsigned int control; - /* until mdio is ready for next command */ - MDIO_WAIT_FOR_USER_ACCESS; + /* until mdio is ready for next command */ + MDIO_WAIT_FOR_USER_ACCESS; - control = (MDIO_USERACCESS_GO | - MDIO_USERACCESS_WRITE | - ((phy_reg << 21) & MDIO_USERACCESS_REGADR) | - ((phy_id << 16) & MDIO_USERACCESS_PHYADR) | - (phy_data & MDIO_USERACCESS_DATA)); - emac_mdio_write(MDIO_USERACCESS(0), control); + control = (MDIO_USERACCESS_GO | + MDIO_USERACCESS_WRITE | + ((phy_reg << 21) & MDIO_USERACCESS_REGADR) | + ((phy_id << 16) & MDIO_USERACCESS_PHYADR) | + (phy_data & MDIO_USERACCESS_DATA)); + emac_mdio_write(MDIO_USERACCESS(0), control); - return 0; + return 0; } static int emac_mii_reset(struct emac_priv *priv) { - unsigned int clk_div; - int mdio_bus_freq = emac_bus_frequency; + unsigned int clk_div; + int mdio_bus_freq = emac_bus_frequency; - if (mdio_max_freq && mdio_bus_freq) - clk_div = ((mdio_bus_freq / mdio_max_freq) - 1); - else - clk_div = 0xFF; + if (mdio_max_freq && mdio_bus_freq) + clk_div = ((mdio_bus_freq / mdio_max_freq) - 1); + else + clk_div = 0xFF; - clk_div &= MDIO_CONTROL_CLKDIV; + clk_div &= MDIO_CONTROL_CLKDIV; - /* Set enable and clock divider in MDIOControl */ - emac_mdio_write(MDIO_CONTROL, (clk_div | MDIO_CONTROL_ENABLE)); + /* Set enable and clock divider in MDIOControl */ + emac_mdio_write(MDIO_CONTROL, (clk_div | MDIO_CONTROL_ENABLE)); - return 0; + return 0; } /* Duplex, half or full. */ -#define DUPLEX_HALF 0x00 -#define DUPLEX_FULL 0x01 +#define DUPLEX_HALF 0x00 +#define DUPLEX_FULL 0x01 static void udelay(rt_uint32_t us) { @@ -169,83 +169,83 @@ static void udelay(rt_uint32_t us) static void davinci_emac_phy_reset(rt_device_t dev) { - int i; - rt_uint16_t status, adv; - struct emac_priv *priv = dev->user_data;; + int i; + rt_uint16_t status, adv; + struct emac_priv *priv = dev->user_data;; - adv = ADVERTISE_CSMA | ADVERTISE_ALL; - emac_mii_write(priv, priv->phy_addr, MII_ADVERTISE, adv); - rt_kprintf("%s: Starting autonegotiation...\n", dev->parent.name); - emac_mii_write(priv, priv->phy_addr, MII_BMCR, (BMCR_ANENABLE - | BMCR_ANRESTART)); + adv = ADVERTISE_CSMA | ADVERTISE_ALL; + emac_mii_write(priv, priv->phy_addr, MII_ADVERTISE, adv); + rt_kprintf("%s: Starting autonegotiation...\n", dev->parent.name); + emac_mii_write(priv, priv->phy_addr, MII_BMCR, (BMCR_ANENABLE + | BMCR_ANRESTART)); - for (i = 0; i < EMAC_AUTONEG_TIMEOUT / 100; i++) { - status = emac_mii_read(priv, priv->phy_addr, MII_BMSR); - if (status & BMSR_ANEGCOMPLETE) - break; - udelay(100); - } + for (i = 0; i < EMAC_AUTONEG_TIMEOUT / 100; i++) { + status = emac_mii_read(priv, priv->phy_addr, MII_BMSR); + if (status & BMSR_ANEGCOMPLETE) + break; + udelay(100); + } - if (status & BMSR_ANEGCOMPLETE) - rt_kprintf("%s: Autonegotiation complete\n", dev->parent.name); - else - rt_kprintf("%s: Autonegotiation timed out (status=0x%04x)\n", - dev->parent.name, status); + if (status & BMSR_ANEGCOMPLETE) + rt_kprintf("%s: Autonegotiation complete\n", dev->parent.name); + else + rt_kprintf("%s: Autonegotiation timed out (status=0x%04x)\n", + dev->parent.name, status); } static int davinci_emac_phy_init(rt_device_t dev) { - struct emac_priv *priv = dev->user_data; - rt_uint16_t phy_id, status, adv, lpa; - int media, speed, duplex; - int i; + struct emac_priv *priv = dev->user_data; + rt_uint16_t phy_id, status, adv, lpa; + int media, speed, duplex; + int i; - /* Check if the PHY is up to snuff... */ - phy_id = emac_mii_read(priv, priv->phy_addr, MII_PHYSID1); - if (phy_id == 0xffff) { - rt_kprintf("%s: No PHY present\n", dev->parent.name); - return 0; - } + /* Check if the PHY is up to snuff... */ + phy_id = emac_mii_read(priv, priv->phy_addr, MII_PHYSID1); + if (phy_id == 0xffff) { + rt_kprintf("%s: No PHY present\n", dev->parent.name); + return 0; + } - status = emac_mii_read(priv, priv->phy_addr, MII_BMSR); - if (!(status & BMSR_LSTATUS)) { - /* Try to re-negotiate if we don't have link already. */ - davinci_emac_phy_reset(dev); + status = emac_mii_read(priv, priv->phy_addr, MII_BMSR); + if (!(status & BMSR_LSTATUS)) { + /* Try to re-negotiate if we don't have link already. */ + davinci_emac_phy_reset(dev); - for (i = 0; i < EMAC_LINK_TIMEOUT / 100; i++) { - status = emac_mii_read(priv, priv->phy_addr, MII_BMSR); - if (status & BMSR_LSTATUS) - break; - udelay(100); - } - } + for (i = 0; i < EMAC_LINK_TIMEOUT / 100; i++) { + status = emac_mii_read(priv, priv->phy_addr, MII_BMSR); + if (status & BMSR_LSTATUS) + break; + udelay(100); + } + } - if (!(status & BMSR_LSTATUS)) { - rt_kprintf("%s: link down (status: 0x%04x)\n", - dev->parent.name, status); - priv->link = 0; - eth_device_linkchange(&priv->parent, RT_FALSE); - return 0; - } else { - adv = emac_mii_read(priv, priv->phy_addr, MII_ADVERTISE); - lpa = emac_mii_read(priv, priv->phy_addr, MII_LPA); - media = mii_nway_result(lpa & adv); - speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF) - ? 1 : 0); - duplex = (media & ADVERTISE_FULL) ? 1 : 0; - rt_kprintf("%s: link up, %sMbps %s-duplex (lpa: 0x%04x)\n", - dev->parent.name, - speed ? "100" : "10", - duplex ? "full" : "half", - lpa); - priv->speed = speed; - priv->duplex = duplex; - priv->link = 1; - eth_device_linkchange(&priv->parent, RT_TRUE); + if (!(status & BMSR_LSTATUS)) { + rt_kprintf("%s: link down (status: 0x%04x)\n", + dev->parent.name, status); + priv->link = 0; + eth_device_linkchange(&priv->parent, RT_FALSE); + return 0; + } else { + adv = emac_mii_read(priv, priv->phy_addr, MII_ADVERTISE); + lpa = emac_mii_read(priv, priv->phy_addr, MII_LPA); + media = mii_nway_result(lpa & adv); + speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF) + ? 1 : 0); + duplex = (media & ADVERTISE_FULL) ? 1 : 0; + rt_kprintf("%s: link up, %sMbps %s-duplex (lpa: 0x%04x)\n", + dev->parent.name, + speed ? "100" : "10", + duplex ? "full" : "half", + lpa); + priv->speed = speed; + priv->duplex = duplex; + priv->link = 1; + eth_device_linkchange(&priv->parent, RT_TRUE); - return 1; - } + return 1; + } } /** @@ -258,94 +258,94 @@ static int davinci_emac_phy_init(rt_device_t dev) */ static void emac_update_phystatus(struct emac_priv *priv) { - rt_uint32_t mac_control; - rt_uint32_t new_duplex; - rt_uint32_t cur_duplex; + rt_uint32_t mac_control; + rt_uint32_t new_duplex; + rt_uint32_t cur_duplex; - mac_control = emac_read(EMAC_MACCONTROL); - cur_duplex = (mac_control & EMAC_MACCONTROL_FULLDUPLEXEN) ? - DUPLEX_FULL : DUPLEX_HALF; - if (priv->phy_mask) - new_duplex = priv->duplex; - else - new_duplex = DUPLEX_FULL; + mac_control = emac_read(EMAC_MACCONTROL); + cur_duplex = (mac_control & EMAC_MACCONTROL_FULLDUPLEXEN) ? + DUPLEX_FULL : DUPLEX_HALF; + if (priv->phy_mask) + new_duplex = priv->duplex; + else + new_duplex = DUPLEX_FULL; - /* We get called only if link has changed (speed/duplex/status) */ - if ((priv->link) && (new_duplex != cur_duplex)) { - priv->duplex = new_duplex; - if (DUPLEX_FULL == priv->duplex) - mac_control |= (EMAC_MACCONTROL_FULLDUPLEXEN); - else - mac_control &= ~(EMAC_MACCONTROL_FULLDUPLEXEN); - } + /* We get called only if link has changed (speed/duplex/status) */ + if ((priv->link) && (new_duplex != cur_duplex)) { + priv->duplex = new_duplex; + if (DUPLEX_FULL == priv->duplex) + mac_control |= (EMAC_MACCONTROL_FULLDUPLEXEN); + else + mac_control &= ~(EMAC_MACCONTROL_FULLDUPLEXEN); + } - if (priv->speed == SPEED_1000 && (priv->version == EMAC_VERSION_2)) { - mac_control = emac_read(EMAC_MACCONTROL); - mac_control |= (EMAC_DM646X_MACCONTORL_GIG | - EMAC_DM646X_MACCONTORL_GIGFORCE); - } else { - /* Clear the GIG bit and GIGFORCE bit */ - mac_control &= ~(EMAC_DM646X_MACCONTORL_GIGFORCE | - EMAC_DM646X_MACCONTORL_GIG); + if (priv->speed == SPEED_1000 && (priv->version == EMAC_VERSION_2)) { + mac_control = emac_read(EMAC_MACCONTROL); + mac_control |= (EMAC_DM646X_MACCONTORL_GIG | + EMAC_DM646X_MACCONTORL_GIGFORCE); + } else { + /* Clear the GIG bit and GIGFORCE bit */ + mac_control &= ~(EMAC_DM646X_MACCONTORL_GIGFORCE | + EMAC_DM646X_MACCONTORL_GIG); - if (priv->rmii_en && (priv->speed == SPEED_100)) - mac_control |= EMAC_MACCONTROL_RMIISPEED_MASK; - else - mac_control &= ~EMAC_MACCONTROL_RMIISPEED_MASK; - } + if (priv->rmii_en && (priv->speed == SPEED_100)) + mac_control |= EMAC_MACCONTROL_RMIISPEED_MASK; + else + mac_control &= ~EMAC_MACCONTROL_RMIISPEED_MASK; + } - /* Update mac_control if changed */ - emac_write(EMAC_MACCONTROL, mac_control); + /* Update mac_control if changed */ + emac_write(EMAC_MACCONTROL, mac_control); #if 0 - if (priv->link) { - /* link ON */ - /* reactivate the transmit queue if it is stopped */ - } else { - /* link OFF */ - } + if (priv->link) { + /* link ON */ + /* reactivate the transmit queue if it is stopped */ + } else { + /* link OFF */ + } #endif } void davinci_emac_update_link(void *param) { - struct emac_priv *priv = param; - rt_device_t dev = &(priv->parent.parent); - rt_uint32_t status, status_change = 0; - rt_uint32_t link; - rt_uint32_t media; - rt_uint16_t adv, lpa; + struct emac_priv *priv = param; + rt_device_t dev = &(priv->parent.parent); + rt_uint32_t status, status_change = 0; + rt_uint32_t link; + rt_uint32_t media; + rt_uint16_t adv, lpa; - status = emac_mii_read(priv, priv->phy_addr, MII_BMSR); - if ((status & BMSR_LSTATUS) == 0) - link = 0; - else - link = 1; + status = emac_mii_read(priv, priv->phy_addr, MII_BMSR); + if ((status & BMSR_LSTATUS) == 0) + link = 0; + else + link = 1; - if (link != priv->link) { - priv->link = link; - status_change = 1; - } + if (link != priv->link) { + priv->link = link; + status_change = 1; + } - if (status_change) { - if (priv->link) { - adv = emac_mii_read(priv, priv->phy_addr, MII_ADVERTISE); - lpa = emac_mii_read(priv, priv->phy_addr, MII_LPA); - media = mii_nway_result(lpa & adv); - priv->speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF) - ? 100 : 10); - priv->duplex = (media & ADVERTISE_FULL) ? 1 : 0; - rt_kprintf("%s: link up (%dMbps/%s-duplex)\n", - dev->parent.name, priv->speed, - DUPLEX_FULL == priv->duplex ? "Full":"Half"); - eth_device_linkchange(&priv->parent, RT_TRUE); - } else { - rt_kprintf("%s: link down\n", dev->parent.name); - eth_device_linkchange(&priv->parent, RT_FALSE); - } - emac_update_phystatus(priv); + if (status_change) { + if (priv->link) { + adv = emac_mii_read(priv, priv->phy_addr, MII_ADVERTISE); + lpa = emac_mii_read(priv, priv->phy_addr, MII_LPA); + media = mii_nway_result(lpa & adv); + priv->speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF) + ? 100 : 10); + priv->duplex = (media & ADVERTISE_FULL) ? 1 : 0; + rt_kprintf("%s: link up (%dMbps/%s-duplex)\n", + dev->parent.name, priv->speed, + DUPLEX_FULL == priv->duplex ? "Full":"Half"); + eth_device_linkchange(&priv->parent, RT_TRUE); + } else { + rt_kprintf("%s: link down\n", dev->parent.name); + eth_device_linkchange(&priv->parent, RT_FALSE); + } + emac_update_phystatus(priv); - } + } } @@ -361,21 +361,21 @@ void davinci_emac_update_link(void *param) * */ static int emac_net_tx_complete(struct emac_priv *priv, - void **net_data_tokens, - int num_tokens, rt_uint32_t ch) + void **net_data_tokens, + int num_tokens, rt_uint32_t ch) { - rt_uint32_t cnt; + rt_uint32_t cnt; - for (cnt = 0; cnt < num_tokens; cnt++) { - struct pbuf *p = (struct pbuf *)net_data_tokens[cnt]; - if (p == RT_NULL) - continue; - priv->net_dev_stats.tx_packets++; - priv->net_dev_stats.tx_bytes += p->len; - //free pbuf - } + for (cnt = 0; cnt < num_tokens; cnt++) { + struct pbuf *p = (struct pbuf *)net_data_tokens[cnt]; + if (p == RT_NULL) + continue; + priv->net_dev_stats.tx_packets++; + priv->net_dev_stats.tx_bytes += p->len; + //free pbuf + } - return 0; + return 0; } /** @@ -388,36 +388,36 @@ static int emac_net_tx_complete(struct emac_priv *priv, */ static void emac_txch_teardown(struct emac_priv *priv, rt_uint32_t ch) { - rt_uint32_t teardown_cnt = 0xFFFFFFF0; /* Some high value */ - struct emac_txch *txch = priv->txch[ch]; - struct emac_tx_bd __iomem *curr_bd; + rt_uint32_t teardown_cnt = 0xFFFFFFF0; /* Some high value */ + struct emac_txch *txch = priv->txch[ch]; + struct emac_tx_bd __iomem *curr_bd; - while ((emac_read(EMAC_TXCP(ch)) & EMAC_TEARDOWN_VALUE) != - EMAC_TEARDOWN_VALUE) { - /* wait till tx teardown complete */ - --teardown_cnt; - if (0 == teardown_cnt) { - rt_kprintf("EMAC: TX teardown aborted\n"); - break; - } - } - emac_write(EMAC_TXCP(ch), EMAC_TEARDOWN_VALUE); + while ((emac_read(EMAC_TXCP(ch)) & EMAC_TEARDOWN_VALUE) != + EMAC_TEARDOWN_VALUE) { + /* wait till tx teardown complete */ + --teardown_cnt; + if (0 == teardown_cnt) { + rt_kprintf("EMAC: TX teardown aborted\n"); + break; + } + } + emac_write(EMAC_TXCP(ch), EMAC_TEARDOWN_VALUE); - /* process sent packets and return pbuf's to upper layer */ - if (1 == txch->queue_active) { - curr_bd = txch->active_queue_head; - while (curr_bd != RT_NULL) { - emac_net_tx_complete(priv, (void *) - &curr_bd->buf_token, 1, ch); - if (curr_bd != txch->active_queue_tail) - curr_bd = curr_bd->next; - else - break; - } - txch->bd_pool_head = txch->active_queue_head; - txch->active_queue_head = - txch->active_queue_tail = RT_NULL; - } + /* process sent packets and return pbuf's to upper layer */ + if (1 == txch->queue_active) { + curr_bd = txch->active_queue_head; + while (curr_bd != RT_NULL) { + emac_net_tx_complete(priv, (void *) + &curr_bd->buf_token, 1, ch); + if (curr_bd != txch->active_queue_tail) + curr_bd = curr_bd->next; + else + break; + } + txch->bd_pool_head = txch->active_queue_head; + txch->active_queue_head = + txch->active_queue_tail = RT_NULL; + } } @@ -431,15 +431,15 @@ static void emac_txch_teardown(struct emac_priv *priv, rt_uint32_t ch) */ static void emac_stop_txch(struct emac_priv *priv, rt_uint32_t ch) { - struct emac_txch *txch = priv->txch[ch]; + struct emac_txch *txch = priv->txch[ch]; - if (txch) { - txch->teardown_pending = 1; - emac_write(EMAC_TXTEARDOWN, 0); - emac_txch_teardown(priv, ch); - txch->teardown_pending = 0; - emac_write(EMAC_TXINTMASKCLEAR, BIT(ch)); - } + if (txch) { + txch->teardown_pending = 1; + emac_write(EMAC_TXTEARDOWN, 0); + emac_txch_teardown(priv, ch); + txch->teardown_pending = 0; + emac_write(EMAC_TXINTMASKCLEAR, BIT(ch)); + } } @@ -460,65 +460,65 @@ static void emac_stop_txch(struct emac_priv *priv, rt_uint32_t ch) */ static int emac_tx_bdproc(struct emac_priv *priv, rt_uint32_t ch, rt_uint32_t budget) { - unsigned long flags; - rt_uint32_t frame_status; - rt_uint32_t pkts_processed = 0; - rt_uint32_t tx_complete_cnt = 0; - struct emac_tx_bd __iomem *curr_bd; - struct emac_txch *txch = priv->txch[ch]; - rt_uint32_t *tx_complete_ptr = txch->tx_complete; + unsigned long flags; + rt_uint32_t frame_status; + rt_uint32_t pkts_processed = 0; + rt_uint32_t tx_complete_cnt = 0; + struct emac_tx_bd __iomem *curr_bd; + struct emac_txch *txch = priv->txch[ch]; + rt_uint32_t *tx_complete_ptr = txch->tx_complete; - if (1 == txch->teardown_pending) { - rt_kprintf("DaVinci EMAC:emac_tx_bdproc: "\ - "teardown pending\n"); - return 0; /* dont handle any pkt completions */ - } + if (1 == txch->teardown_pending) { + rt_kprintf("DaVinci EMAC:emac_tx_bdproc: "\ + "teardown pending\n"); + return 0; /* dont handle any pkt completions */ + } - ++txch->proc_count; - rt_sem_take(&priv->tx_lock, RT_WAITING_FOREVER); - curr_bd = txch->active_queue_head; - if (RT_NULL == curr_bd) { - emac_write(EMAC_TXCP(ch), - emac_virt_to_phys(txch->last_hw_bdprocessed)); - txch->no_active_pkts++; - rt_sem_release(&priv->tx_lock); - return 0; - } - BD_CACHE_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); - frame_status = curr_bd->mode; - while ((curr_bd) && - ((frame_status & EMAC_CPPI_OWNERSHIP_BIT) == 0) && - (pkts_processed < budget)) { - emac_write(EMAC_TXCP(ch), emac_virt_to_phys(curr_bd)); - txch->active_queue_head = curr_bd->next; - if (frame_status & EMAC_CPPI_EOQ_BIT) { - if (curr_bd->next) { /* misqueued packet */ - emac_write(EMAC_TXHDP(ch), curr_bd->h_next); - ++txch->mis_queued_packets; - } else { - txch->queue_active = 0; /* end of queue */ - } - } - *tx_complete_ptr = (rt_uint32_t) curr_bd->buf_token; - ++tx_complete_ptr; - ++tx_complete_cnt; - curr_bd->next = txch->bd_pool_head; - txch->bd_pool_head = curr_bd; - --txch->active_queue_count; - pkts_processed++; - txch->last_hw_bdprocessed = curr_bd; - curr_bd = txch->active_queue_head; - if (curr_bd) { - BD_CACHE_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); - frame_status = curr_bd->mode; - } - } /* end of pkt processing loop */ + ++txch->proc_count; + rt_sem_take(&priv->tx_lock, RT_WAITING_FOREVER); + curr_bd = txch->active_queue_head; + if (RT_NULL == curr_bd) { + emac_write(EMAC_TXCP(ch), + emac_virt_to_phys(txch->last_hw_bdprocessed)); + txch->no_active_pkts++; + rt_sem_release(&priv->tx_lock); + return 0; + } + BD_CACHE_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); + frame_status = curr_bd->mode; + while ((curr_bd) && + ((frame_status & EMAC_CPPI_OWNERSHIP_BIT) == 0) && + (pkts_processed < budget)) { + emac_write(EMAC_TXCP(ch), emac_virt_to_phys(curr_bd)); + txch->active_queue_head = curr_bd->next; + if (frame_status & EMAC_CPPI_EOQ_BIT) { + if (curr_bd->next) { /* misqueued packet */ + emac_write(EMAC_TXHDP(ch), curr_bd->h_next); + ++txch->mis_queued_packets; + } else { + txch->queue_active = 0; /* end of queue */ + } + } + *tx_complete_ptr = (rt_uint32_t) curr_bd->buf_token; + ++tx_complete_ptr; + ++tx_complete_cnt; + curr_bd->next = txch->bd_pool_head; + txch->bd_pool_head = curr_bd; + --txch->active_queue_count; + pkts_processed++; + txch->last_hw_bdprocessed = curr_bd; + curr_bd = txch->active_queue_head; + if (curr_bd) { + BD_CACHE_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); + frame_status = curr_bd->mode; + } + } /* end of pkt processing loop */ - emac_net_tx_complete(priv, - (void *)&txch->tx_complete[0], - tx_complete_cnt, ch); - rt_sem_release(&priv->tx_lock); - return pkts_processed; + emac_net_tx_complete(priv, + (void *)&txch->tx_complete[0], + tx_complete_cnt, ch); + rt_sem_release(&priv->tx_lock); + return pkts_processed; } @@ -536,81 +536,81 @@ static int emac_tx_bdproc(struct emac_priv *priv, rt_uint32_t ch, rt_uint32_t bu */ static int emac_send(struct emac_priv *priv, struct emac_netpktobj *pkt, rt_uint32_t ch) { - unsigned long flags; - struct emac_tx_bd __iomem *curr_bd; - struct emac_txch *txch; - struct emac_netbufobj *buf_list; - rt_uint32_t num_pkts = 0; - int retry = 0; + unsigned long flags; + struct emac_tx_bd __iomem *curr_bd; + struct emac_txch *txch; + struct emac_netbufobj *buf_list; + rt_uint32_t num_pkts = 0; + int retry = 0; - txch = priv->txch[ch]; - buf_list = pkt->buf_list; /* get handle to the buffer array */ + txch = priv->txch[ch]; + buf_list = pkt->buf_list; /* get handle to the buffer array */ - /* check packet size and pad if short */ - if (pkt->pkt_length < EMAC_DEF_MIN_ETHPKTSIZE) { - buf_list->length += (EMAC_DEF_MIN_ETHPKTSIZE - pkt->pkt_length); - pkt->pkt_length = EMAC_DEF_MIN_ETHPKTSIZE; - } + /* check packet size and pad if short */ + if (pkt->pkt_length < EMAC_DEF_MIN_ETHPKTSIZE) { + buf_list->length += (EMAC_DEF_MIN_ETHPKTSIZE - pkt->pkt_length); + pkt->pkt_length = EMAC_DEF_MIN_ETHPKTSIZE; + } try: - rt_sem_take(&priv->tx_lock, RT_WAITING_FOREVER); - curr_bd = txch->bd_pool_head; - if (curr_bd == RT_NULL) { - txch->out_of_tx_bd++; - rt_sem_release(&priv->tx_lock); - num_pkts = emac_tx_bdproc(priv, EMAC_DEF_TX_CH, - EMAC_DEF_TX_MAX_SERVICE); - if (!num_pkts) { - retry++; - if (retry > 5) - return EMAC_ERR_TX_OUT_OF_BD; - rt_thread_delay(1); - } - goto try; - } + rt_sem_take(&priv->tx_lock, RT_WAITING_FOREVER); + curr_bd = txch->bd_pool_head; + if (curr_bd == RT_NULL) { + txch->out_of_tx_bd++; + rt_sem_release(&priv->tx_lock); + num_pkts = emac_tx_bdproc(priv, EMAC_DEF_TX_CH, + EMAC_DEF_TX_MAX_SERVICE); + if (!num_pkts) { + retry++; + if (retry > 5) + return EMAC_ERR_TX_OUT_OF_BD; + rt_thread_delay(1); + } + goto try; + } - txch->bd_pool_head = curr_bd->next; - curr_bd->buf_token = buf_list->buf_token; - curr_bd->buff_ptr = virt_to_phys(buf_list->data_ptr); - curr_bd->off_b_len = buf_list->length; - curr_bd->h_next = 0; - curr_bd->next = RT_NULL; - curr_bd->mode = (EMAC_CPPI_SOP_BIT | EMAC_CPPI_OWNERSHIP_BIT | - EMAC_CPPI_EOP_BIT | pkt->pkt_length); + txch->bd_pool_head = curr_bd->next; + curr_bd->buf_token = buf_list->buf_token; + curr_bd->buff_ptr = virt_to_phys(buf_list->data_ptr); + curr_bd->off_b_len = buf_list->length; + curr_bd->h_next = 0; + curr_bd->next = RT_NULL; + curr_bd->mode = (EMAC_CPPI_SOP_BIT | EMAC_CPPI_OWNERSHIP_BIT | + EMAC_CPPI_EOP_BIT | pkt->pkt_length); - /* flush the packet from cache if write back cache is present */ - BD_CACHE_WRITEBACK_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); + /* flush the packet from cache if write back cache is present */ + BD_CACHE_WRITEBACK_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); - /* send the packet */ - if (txch->active_queue_head == RT_NULL) { - txch->active_queue_head = curr_bd; - txch->active_queue_tail = curr_bd; - if (1 != txch->queue_active) { - emac_write(EMAC_TXHDP(ch), - emac_virt_to_phys(curr_bd)); - txch->queue_active = 1; - } - ++txch->queue_reinit; - } else { - register struct emac_tx_bd __iomem *tail_bd; - register rt_uint32_t frame_status; + /* send the packet */ + if (txch->active_queue_head == RT_NULL) { + txch->active_queue_head = curr_bd; + txch->active_queue_tail = curr_bd; + if (1 != txch->queue_active) { + emac_write(EMAC_TXHDP(ch), + emac_virt_to_phys(curr_bd)); + txch->queue_active = 1; + } + ++txch->queue_reinit; + } else { + register struct emac_tx_bd __iomem *tail_bd; + register rt_uint32_t frame_status; - tail_bd = txch->active_queue_tail; - tail_bd->next = curr_bd; - txch->active_queue_tail = curr_bd; - tail_bd = EMAC_VIRT_NOCACHE(tail_bd); - tail_bd->h_next = (int)emac_virt_to_phys(curr_bd); - frame_status = tail_bd->mode; - if (frame_status & EMAC_CPPI_EOQ_BIT) { - emac_write(EMAC_TXHDP(ch), emac_virt_to_phys(curr_bd)); - frame_status &= ~(EMAC_CPPI_EOQ_BIT); - tail_bd->mode = frame_status; - ++txch->end_of_queue_add; - } - } - txch->active_queue_count++; - rt_sem_release(&priv->tx_lock); - return 0; + tail_bd = txch->active_queue_tail; + tail_bd->next = curr_bd; + txch->active_queue_tail = curr_bd; + tail_bd = EMAC_VIRT_NOCACHE(tail_bd); + tail_bd->h_next = (int)emac_virt_to_phys(curr_bd); + frame_status = tail_bd->mode; + if (frame_status & EMAC_CPPI_EOQ_BIT) { + emac_write(EMAC_TXHDP(ch), emac_virt_to_phys(curr_bd)); + frame_status &= ~(EMAC_CPPI_EOQ_BIT); + tail_bd->mode = frame_status; + ++txch->end_of_queue_add; + } + } + txch->active_queue_count++; + rt_sem_release(&priv->tx_lock); + return 0; } /** @@ -625,40 +625,40 @@ try: */ static int emac_dev_xmit(struct pbuf *p, struct emac_priv *priv) { - int ret_code; - struct emac_netbufobj tx_buf; /* buffer obj-only single frame support */ - struct emac_netpktobj tx_packet; /* packet object */ + int ret_code; + struct emac_netbufobj tx_buf; /* buffer obj-only single frame support */ + struct emac_netpktobj tx_packet; /* packet object */ - /* If no link, return */ - if (!priv->link) { - rt_kprintf("DaVinci EMAC: No link to transmit\n"); - return -RT_EBUSY; - } + /* If no link, return */ + if (!priv->link) { + rt_kprintf("DaVinci EMAC: No link to transmit\n"); + return -RT_EBUSY; + } - /* Build the buffer and packet objects - Since only single fragment is - * supported, need not set length and token in both packet & object. - * Doing so for completeness sake & to show that this needs to be done - * in multifragment case - */ - tx_packet.buf_list = &tx_buf; - tx_packet.num_bufs = 1; /* only single fragment supported */ - tx_packet.pkt_length = p->len; - tx_packet.pkt_token = (void *)p; - tx_buf.length = p->len; - tx_buf.buf_token = (void *)p; - tx_buf.data_ptr = p->payload; - EMAC_CACHE_WRITEBACK((unsigned long)p->payload, p->len); - ret_code = emac_send(priv, &tx_packet, EMAC_DEF_TX_CH); - if (ret_code != 0) { - if (ret_code == EMAC_ERR_TX_OUT_OF_BD) { - rt_kprintf("DaVinci EMAC: xmit() fatal"\ - " err. Out of TX BD's\n"); - } - priv->net_dev_stats.tx_dropped++; - return -RT_EBUSY; - } + /* Build the buffer and packet objects - Since only single fragment is + * supported, need not set length and token in both packet & object. + * Doing so for completeness sake & to show that this needs to be done + * in multifragment case + */ + tx_packet.buf_list = &tx_buf; + tx_packet.num_bufs = 1; /* only single fragment supported */ + tx_packet.pkt_length = p->len; + tx_packet.pkt_token = (void *)p; + tx_buf.length = p->len; + tx_buf.buf_token = (void *)p; + tx_buf.data_ptr = p->payload; + EMAC_CACHE_WRITEBACK((unsigned long)p->payload, p->len); + ret_code = emac_send(priv, &tx_packet, EMAC_DEF_TX_CH); + if (ret_code != 0) { + if (ret_code == EMAC_ERR_TX_OUT_OF_BD) { + rt_kprintf("DaVinci EMAC: xmit() fatal"\ + " err. Out of TX BD's\n"); + } + priv->net_dev_stats.tx_dropped++; + return -RT_EBUSY; + } - return RT_EOK; + return RT_EOK; } /** @@ -671,15 +671,15 @@ static int emac_dev_xmit(struct pbuf *p, struct emac_priv *priv) */ static void emac_cleanup_txch(struct emac_priv *priv, rt_uint32_t ch) { - struct emac_txch *txch = priv->txch[ch]; + struct emac_txch *txch = priv->txch[ch]; - if (txch) { - if (txch->bd_mem) - txch->bd_mem = NULL; - rt_free(txch->tx_complete); - rt_free(txch); - priv->txch[ch] = NULL; - } + if (txch) { + if (txch->bd_mem) + txch->bd_mem = NULL; + rt_free(txch->tx_complete); + rt_free(txch); + priv->txch[ch] = NULL; + } } @@ -695,15 +695,15 @@ static void emac_cleanup_txch(struct emac_priv *priv, rt_uint32_t ch) */ static void emac_dev_tx_timeout(struct emac_priv *priv) { - rt_kprintf("emac tx timeout.\n"); - priv->net_dev_stats.tx_errors++; - emac_int_disable(priv); - emac_stop_txch(priv, EMAC_DEF_TX_CH); - emac_cleanup_txch(priv, EMAC_DEF_TX_CH); - emac_init_txch(priv, EMAC_DEF_TX_CH); - emac_write(EMAC_TXHDP(0), 0); - emac_write(EMAC_TXINTMASKSET, BIT(EMAC_DEF_TX_CH)); - emac_int_enable(priv); + rt_kprintf("emac tx timeout.\n"); + priv->net_dev_stats.tx_errors++; + emac_int_disable(priv); + emac_stop_txch(priv, EMAC_DEF_TX_CH); + emac_cleanup_txch(priv, EMAC_DEF_TX_CH); + emac_init_txch(priv, EMAC_DEF_TX_CH); + emac_write(EMAC_TXHDP(0), 0); + emac_write(EMAC_TXINTMASKSET, BIT(EMAC_DEF_TX_CH)); + emac_int_enable(priv); } @@ -711,16 +711,16 @@ static void emac_dev_tx_timeout(struct emac_priv *priv) /* transmit packet. */ rt_err_t rt_davinci_emac_tx( rt_device_t dev, struct pbuf* p) { - rt_err_t err; - struct emac_priv *priv = dev->user_data; + rt_err_t err; + struct emac_priv *priv = dev->user_data; - err = emac_dev_xmit(p, priv); - if (err != RT_EOK) - { - emac_dev_tx_timeout(priv); - } + err = emac_dev_xmit(p, priv); + if (err != RT_EOK) + { + emac_dev_tx_timeout(priv); + } - return RT_EOK; + return RT_EOK; } /** @@ -737,49 +737,49 @@ rt_err_t rt_davinci_emac_tx( rt_device_t dev, struct pbuf* p) * */ static void emac_addbd_to_rx_queue(struct emac_priv *priv, rt_uint32_t ch, - struct emac_rx_bd __iomem *curr_bd, - char *buffer, void *buf_token) + struct emac_rx_bd __iomem *curr_bd, + char *buffer, void *buf_token) { - struct emac_rxch *rxch = priv->rxch[ch]; + struct emac_rxch *rxch = priv->rxch[ch]; - /* populate the hardware descriptor */ - curr_bd->h_next = 0; - curr_bd->buff_ptr = virt_to_phys(buffer); - curr_bd->off_b_len = rxch->buf_size; - curr_bd->mode = EMAC_CPPI_OWNERSHIP_BIT; - curr_bd->next = RT_NULL; - curr_bd->data_ptr = buffer; - curr_bd->buf_token = buf_token; + /* populate the hardware descriptor */ + curr_bd->h_next = 0; + curr_bd->buff_ptr = virt_to_phys(buffer); + curr_bd->off_b_len = rxch->buf_size; + curr_bd->mode = EMAC_CPPI_OWNERSHIP_BIT; + curr_bd->next = RT_NULL; + curr_bd->data_ptr = buffer; + curr_bd->buf_token = buf_token; - /* write back */ - BD_CACHE_WRITEBACK_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); - if (rxch->active_queue_head == RT_NULL) { - rxch->active_queue_head = curr_bd; - rxch->active_queue_tail = curr_bd; - if (0 != rxch->queue_active) { - emac_write(EMAC_RXHDP(ch), - emac_virt_to_phys(rxch->active_queue_head)); - rxch->queue_active = 1; - } - } else { - struct emac_rx_bd __iomem *tail_bd; - rt_uint32_t frame_status; + /* write back */ + BD_CACHE_WRITEBACK_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); + if (rxch->active_queue_head == RT_NULL) { + rxch->active_queue_head = curr_bd; + rxch->active_queue_tail = curr_bd; + if (0 != rxch->queue_active) { + emac_write(EMAC_RXHDP(ch), + emac_virt_to_phys(rxch->active_queue_head)); + rxch->queue_active = 1; + } + } else { + struct emac_rx_bd __iomem *tail_bd; + rt_uint32_t frame_status; - tail_bd = rxch->active_queue_tail; - rxch->active_queue_tail = curr_bd; - tail_bd->next = curr_bd; - tail_bd = EMAC_VIRT_NOCACHE(tail_bd); - tail_bd->h_next = emac_virt_to_phys(curr_bd); - frame_status = tail_bd->mode; - if (frame_status & EMAC_CPPI_EOQ_BIT) { - emac_write(EMAC_RXHDP(ch), - emac_virt_to_phys(curr_bd)); - frame_status &= ~(EMAC_CPPI_EOQ_BIT); - tail_bd->mode = frame_status; - ++rxch->end_of_queue_add; - } - } - ++rxch->recycled_bd; + tail_bd = rxch->active_queue_tail; + rxch->active_queue_tail = curr_bd; + tail_bd->next = curr_bd; + tail_bd = EMAC_VIRT_NOCACHE(tail_bd); + tail_bd->h_next = emac_virt_to_phys(curr_bd); + frame_status = tail_bd->mode; + if (frame_status & EMAC_CPPI_EOQ_BIT) { + emac_write(EMAC_RXHDP(ch), + emac_virt_to_phys(curr_bd)); + frame_status &= ~(EMAC_CPPI_EOQ_BIT); + tail_bd->mode = frame_status; + ++rxch->end_of_queue_add; + } + } + ++rxch->recycled_bd; } /** @@ -793,22 +793,22 @@ static void emac_addbd_to_rx_queue(struct emac_priv *priv, rt_uint32_t ch, * Returns success or appropriate error code (none as of now) */ static int emac_net_rx_cb(struct emac_priv *priv, - struct emac_netpktobj *net_pkt_list) + struct emac_netpktobj *net_pkt_list) { - struct eth_device *device = &priv->parent; - struct pbuf *p; - p = (struct pbuf *)net_pkt_list->pkt_token; - /* set length of packet */ - p->tot_len = net_pkt_list->pkt_length; - p->len = net_pkt_list->pkt_length; - EMAC_CACHE_INVALIDATE((unsigned long)p->payload, p->len); - if (device->netif->input(p, device->netif) != RT_EOK) - { - pbuf_free(p); - } - priv->net_dev_stats.rx_bytes += net_pkt_list->pkt_length; - priv->net_dev_stats.rx_packets++; - return 0; + struct eth_device *device = &priv->parent; + struct pbuf *p; + p = (struct pbuf *)net_pkt_list->pkt_token; + /* set length of packet */ + p->tot_len = net_pkt_list->pkt_length; + p->len = net_pkt_list->pkt_length; + EMAC_CACHE_INVALIDATE((unsigned long)p->payload, p->len); + if (device->netif->input(p, device->netif) != RT_EOK) + { + pbuf_free(p); + } + priv->net_dev_stats.rx_bytes += net_pkt_list->pkt_length; + priv->net_dev_stats.rx_packets++; + return 0; } /** @@ -824,20 +824,20 @@ static int emac_net_rx_cb(struct emac_priv *priv, * Returns pbuf data pointer or 0 on failure to alloc pbuf */ static void *emac_net_alloc_rx_buf(struct emac_priv *priv, int buf_size, - void **data_token, rt_uint32_t ch) + void **data_token, rt_uint32_t ch) { - struct pbuf* p; + struct pbuf* p; - p = pbuf_alloc(PBUF_LINK, buf_size, PBUF_RAM); - if (RT_NULL == p) { - rt_kprintf("DaVinci EMAC: failed to alloc pbuf\n"); - return RT_NULL; - } + p = pbuf_alloc(PBUF_LINK, buf_size, PBUF_RAM); + if (RT_NULL == p) { + rt_kprintf("DaVinci EMAC: failed to alloc pbuf\n"); + return RT_NULL; + } - /* set device pointer in p and reserve space for extra bytes */ - *data_token = (void *) p; - EMAC_CACHE_WRITEBACK_INVALIDATE((unsigned long)p->payload, buf_size); - return p->payload; + /* set device pointer in p and reserve space for extra bytes */ + *data_token = (void *) p; + EMAC_CACHE_WRITEBACK_INVALIDATE((unsigned long)p->payload, buf_size); + return p->payload; } @@ -857,160 +857,160 @@ static void *emac_net_alloc_rx_buf(struct emac_priv *priv, int buf_size, */ static int emac_rx_bdproc(struct emac_priv *priv, rt_uint32_t ch, rt_uint32_t budget) { - unsigned long flags; - rt_uint32_t frame_status; - rt_uint32_t pkts_processed = 0; - char *new_buffer; - struct emac_rx_bd __iomem *curr_bd; - struct emac_rx_bd __iomem *last_bd; - struct emac_netpktobj *curr_pkt, pkt_obj; - struct emac_netbufobj buf_obj; - struct emac_netbufobj *rx_buf_obj; - void *new_buf_token; - struct emac_rxch *rxch = priv->rxch[ch]; + unsigned long flags; + rt_uint32_t frame_status; + rt_uint32_t pkts_processed = 0; + char *new_buffer; + struct emac_rx_bd __iomem *curr_bd; + struct emac_rx_bd __iomem *last_bd; + struct emac_netpktobj *curr_pkt, pkt_obj; + struct emac_netbufobj buf_obj; + struct emac_netbufobj *rx_buf_obj; + void *new_buf_token; + struct emac_rxch *rxch = priv->rxch[ch]; - if (1 == rxch->teardown_pending) - return 0; - ++rxch->proc_count; - rt_sem_take(&priv->rx_lock, RT_WAITING_FOREVER); - pkt_obj.buf_list = &buf_obj; - curr_pkt = &pkt_obj; - curr_bd = rxch->active_queue_head; - BD_CACHE_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); - frame_status = curr_bd->mode; + if (1 == rxch->teardown_pending) + return 0; + ++rxch->proc_count; + rt_sem_take(&priv->rx_lock, RT_WAITING_FOREVER); + pkt_obj.buf_list = &buf_obj; + curr_pkt = &pkt_obj; + curr_bd = rxch->active_queue_head; + BD_CACHE_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); + frame_status = curr_bd->mode; - while ((curr_bd) && - ((frame_status & EMAC_CPPI_OWNERSHIP_BIT) == 0) && - (pkts_processed < budget)) { + while ((curr_bd) && + ((frame_status & EMAC_CPPI_OWNERSHIP_BIT) == 0) && + (pkts_processed < budget)) { - new_buffer = emac_net_alloc_rx_buf(priv, rxch->buf_size, - &new_buf_token, EMAC_DEF_RX_CH); - if (RT_NULL == new_buffer) { - ++rxch->out_of_rx_buffers; - goto end_emac_rx_bdproc; - } + new_buffer = emac_net_alloc_rx_buf(priv, rxch->buf_size, + &new_buf_token, EMAC_DEF_RX_CH); + if (RT_NULL == new_buffer) { + ++rxch->out_of_rx_buffers; + goto end_emac_rx_bdproc; + } - /* populate received packet data structure */ - rx_buf_obj = &curr_pkt->buf_list[0]; - rx_buf_obj->data_ptr = (char *)curr_bd->data_ptr; - rx_buf_obj->length = curr_bd->off_b_len & EMAC_RX_BD_BUF_SIZE; - rx_buf_obj->buf_token = curr_bd->buf_token; - curr_pkt->pkt_token = curr_pkt->buf_list->buf_token; - curr_pkt->num_bufs = 1; - curr_pkt->pkt_length = - (frame_status & EMAC_RX_BD_PKT_LENGTH_MASK); - emac_write(EMAC_RXCP(ch), emac_virt_to_phys(curr_bd)); - ++rxch->processed_bd; - last_bd = curr_bd; - curr_bd = last_bd->next; - rxch->active_queue_head = curr_bd; + /* populate received packet data structure */ + rx_buf_obj = &curr_pkt->buf_list[0]; + rx_buf_obj->data_ptr = (char *)curr_bd->data_ptr; + rx_buf_obj->length = curr_bd->off_b_len & EMAC_RX_BD_BUF_SIZE; + rx_buf_obj->buf_token = curr_bd->buf_token; + curr_pkt->pkt_token = curr_pkt->buf_list->buf_token; + curr_pkt->num_bufs = 1; + curr_pkt->pkt_length = + (frame_status & EMAC_RX_BD_PKT_LENGTH_MASK); + emac_write(EMAC_RXCP(ch), emac_virt_to_phys(curr_bd)); + ++rxch->processed_bd; + last_bd = curr_bd; + curr_bd = last_bd->next; + rxch->active_queue_head = curr_bd; - /* check if end of RX queue ? */ - if (frame_status & EMAC_CPPI_EOQ_BIT) { - if (curr_bd) { - ++rxch->mis_queued_packets; - emac_write(EMAC_RXHDP(ch), - emac_virt_to_phys(curr_bd)); - } else { - ++rxch->end_of_queue; - rxch->queue_active = 0; - } - } + /* check if end of RX queue ? */ + if (frame_status & EMAC_CPPI_EOQ_BIT) { + if (curr_bd) { + ++rxch->mis_queued_packets; + emac_write(EMAC_RXHDP(ch), + emac_virt_to_phys(curr_bd)); + } else { + ++rxch->end_of_queue; + rxch->queue_active = 0; + } + } - /* recycle BD */ - emac_addbd_to_rx_queue(priv, ch, last_bd, new_buffer, - new_buf_token); + /* recycle BD */ + emac_addbd_to_rx_queue(priv, ch, last_bd, new_buffer, + new_buf_token); - /* return the packet to the user - BD ptr passed in - * last parameter for potential *future* use */ - rt_sem_release(&priv->rx_lock); - emac_net_rx_cb(priv, curr_pkt);//??? - rt_sem_take(&priv->rx_lock, RT_WAITING_FOREVER); - curr_bd = rxch->active_queue_head; - if (curr_bd) { - BD_CACHE_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); - frame_status = curr_bd->mode; - } - ++pkts_processed; - } + /* return the packet to the user - BD ptr passed in + * last parameter for potential *future* use */ + rt_sem_release(&priv->rx_lock); + emac_net_rx_cb(priv, curr_pkt);//??? + rt_sem_take(&priv->rx_lock, RT_WAITING_FOREVER); + curr_bd = rxch->active_queue_head; + if (curr_bd) { + BD_CACHE_INVALIDATE(curr_bd, EMAC_BD_LENGTH_FOR_CACHE); + frame_status = curr_bd->mode; + } + ++pkts_processed; + } end_emac_rx_bdproc: - rt_sem_release(&priv->rx_lock); - return pkts_processed; + rt_sem_release(&priv->rx_lock); + return pkts_processed; } /* reception packet. */ struct pbuf *rt_davinci_emac_rx(rt_device_t dev) { - struct emac_priv *priv = dev->user_data; - struct pbuf* p = RT_NULL; - rt_uint32_t len; - void *buffer; + struct emac_priv *priv = dev->user_data; + struct pbuf* p = RT_NULL; + rt_uint32_t len; + void *buffer; - struct pbuf* q; - rt_uint8_t *buf = RT_NULL; - unsigned int mask; - rt_uint32_t status = 0; - rt_uint32_t num_pkts = 0; + struct pbuf* q; + rt_uint8_t *buf = RT_NULL; + unsigned int mask; + rt_uint32_t status = 0; + rt_uint32_t num_pkts = 0; - /* Check interrupt vectors and call packet processing */ - status = emac_read(EMAC_MACINVECTOR); + /* Check interrupt vectors and call packet processing */ + status = emac_read(EMAC_MACINVECTOR); - mask = EMAC_DM644X_MAC_IN_VECTOR_TX_INT_VEC; + mask = EMAC_DM644X_MAC_IN_VECTOR_TX_INT_VEC; - if (priv->version == EMAC_VERSION_2) - mask = EMAC_DM646X_MAC_IN_VECTOR_TX_INT_VEC; + if (priv->version == EMAC_VERSION_2) + mask = EMAC_DM646X_MAC_IN_VECTOR_TX_INT_VEC; - if (status & mask) { - num_pkts = emac_tx_bdproc(priv, EMAC_DEF_TX_CH, - EMAC_DEF_TX_MAX_SERVICE); - } /* TX processing */ + if (status & mask) { + num_pkts = emac_tx_bdproc(priv, EMAC_DEF_TX_CH, + EMAC_DEF_TX_MAX_SERVICE); + } /* TX processing */ - /*if (num_pkts) - //return budget; - return RT_NULL;*/ + /*if (num_pkts) + //return budget; + return RT_NULL;*/ - mask = EMAC_DM644X_MAC_IN_VECTOR_RX_INT_VEC; + mask = EMAC_DM644X_MAC_IN_VECTOR_RX_INT_VEC; - if (priv->version == EMAC_VERSION_2) - mask = EMAC_DM646X_MAC_IN_VECTOR_RX_INT_VEC; + if (priv->version == EMAC_VERSION_2) + mask = EMAC_DM646X_MAC_IN_VECTOR_RX_INT_VEC; - if (status & mask) { - num_pkts = emac_rx_bdproc(priv, EMAC_DEF_RX_CH, EMAC_DEF_RX_MAX_SERVICE); - } /* RX processing */ + if (status & mask) { + num_pkts = emac_rx_bdproc(priv, EMAC_DEF_RX_CH, EMAC_DEF_RX_MAX_SERVICE); + } /* RX processing */ - /*if (num_pkts < EMAC_DEF_RX_MAX_SERVICE) { - emac_int_enable(priv); - }*/ + /*if (num_pkts < EMAC_DEF_RX_MAX_SERVICE) { + emac_int_enable(priv); + }*/ - mask = EMAC_DM644X_MAC_IN_VECTOR_HOST_INT; - if (priv->version == EMAC_VERSION_2) - mask = EMAC_DM646X_MAC_IN_VECTOR_HOST_INT; + mask = EMAC_DM644X_MAC_IN_VECTOR_HOST_INT; + if (priv->version == EMAC_VERSION_2) + mask = EMAC_DM646X_MAC_IN_VECTOR_HOST_INT; - if (status & mask) { - rt_uint32_t ch, cause; - rt_kprintf("DaVinci EMAC: Fatal Hardware Error\n"); + if (status & mask) { + rt_uint32_t ch, cause; + rt_kprintf("DaVinci EMAC: Fatal Hardware Error\n"); - status = emac_read(EMAC_MACSTATUS); - cause = ((status & EMAC_MACSTATUS_TXERRCODE_MASK) >> - EMAC_MACSTATUS_TXERRCODE_SHIFT); - if (cause) { - ch = ((status & EMAC_MACSTATUS_TXERRCH_MASK) >> - EMAC_MACSTATUS_TXERRCH_SHIFT); - } - cause = ((status & EMAC_MACSTATUS_RXERRCODE_MASK) >> - EMAC_MACSTATUS_RXERRCODE_SHIFT); - if (cause) { - ch = ((status & EMAC_MACSTATUS_RXERRCH_MASK) >> - EMAC_MACSTATUS_RXERRCH_SHIFT); - } - } /* Host error processing */ + status = emac_read(EMAC_MACSTATUS); + cause = ((status & EMAC_MACSTATUS_TXERRCODE_MASK) >> + EMAC_MACSTATUS_TXERRCODE_SHIFT); + if (cause) { + ch = ((status & EMAC_MACSTATUS_TXERRCH_MASK) >> + EMAC_MACSTATUS_TXERRCH_SHIFT); + } + cause = ((status & EMAC_MACSTATUS_RXERRCODE_MASK) >> + EMAC_MACSTATUS_RXERRCODE_SHIFT); + if (cause) { + ch = ((status & EMAC_MACSTATUS_RXERRCH_MASK) >> + EMAC_MACSTATUS_RXERRCH_SHIFT); + } + } /* Host error processing */ - //return num_pkts; - //return p; - emac_int_enable(priv); - return RT_NULL; + //return num_pkts; + //return p; + emac_int_enable(priv); + return RT_NULL; } @@ -1026,19 +1026,19 @@ struct pbuf *rt_davinci_emac_rx(rt_device_t dev) */ static void emac_set_type0addr(struct emac_priv *priv, rt_uint32_t ch, char *mac_addr) { - rt_uint32_t val; - val = ((mac_addr[5] << 8) | (mac_addr[4])); - emac_write(EMAC_MACSRCADDRLO, val); + rt_uint32_t val; + val = ((mac_addr[5] << 8) | (mac_addr[4])); + emac_write(EMAC_MACSRCADDRLO, val); - val = ((mac_addr[3] << 24) | (mac_addr[2] << 16) | \ - (mac_addr[1] << 8) | (mac_addr[0])); - emac_write(EMAC_MACSRCADDRHI, val); - val = emac_read(EMAC_RXUNICASTSET); - val |= BIT(ch); - emac_write(EMAC_RXUNICASTSET, val); - val = emac_read(EMAC_RXUNICASTCLEAR); - val &= ~BIT(ch); - emac_write(EMAC_RXUNICASTCLEAR, val); + val = ((mac_addr[3] << 24) | (mac_addr[2] << 16) | \ + (mac_addr[1] << 8) | (mac_addr[0])); + emac_write(EMAC_MACSRCADDRHI, val); + val = emac_read(EMAC_RXUNICASTSET); + val |= BIT(ch); + emac_write(EMAC_RXUNICASTSET, val); + val = emac_read(EMAC_RXUNICASTCLEAR); + val &= ~BIT(ch); + emac_write(EMAC_RXUNICASTCLEAR, val); } /** @@ -1053,14 +1053,14 @@ static void emac_set_type0addr(struct emac_priv *priv, rt_uint32_t ch, char *mac */ static void emac_set_type1addr(struct emac_priv *priv, rt_uint32_t ch, char *mac_addr) { - rt_uint32_t val; - emac_write(EMAC_MACINDEX, ch); - val = ((mac_addr[5] << 8) | mac_addr[4]); - emac_write(EMAC_MACADDRLO, val); - val = ((mac_addr[3] << 24) | (mac_addr[2] << 16) | \ - (mac_addr[1] << 8) | (mac_addr[0])); - emac_write(EMAC_MACADDRHI, val); - emac_set_type0addr(priv, ch, mac_addr); + rt_uint32_t val; + emac_write(EMAC_MACINDEX, ch); + val = ((mac_addr[5] << 8) | mac_addr[4]); + emac_write(EMAC_MACADDRLO, val); + val = ((mac_addr[3] << 24) | (mac_addr[2] << 16) | \ + (mac_addr[1] << 8) | (mac_addr[0])); + emac_write(EMAC_MACADDRHI, val); + emac_set_type0addr(priv, ch, mac_addr); } /** @@ -1076,17 +1076,17 @@ static void emac_set_type1addr(struct emac_priv *priv, rt_uint32_t ch, char *mac * Returns success (0) or appropriate error code (none as of now) */ static void emac_set_type2addr(struct emac_priv *priv, rt_uint32_t ch, - char *mac_addr, int index, int match) + char *mac_addr, int index, int match) { - rt_uint32_t val; - emac_write(EMAC_MACINDEX, index); - val = ((mac_addr[3] << 24) | (mac_addr[2] << 16) | \ - (mac_addr[1] << 8) | (mac_addr[0])); - emac_write(EMAC_MACADDRHI, val); - val = ((mac_addr[5] << 8) | mac_addr[4] | ((ch & 0x7) << 16) | \ - (match << 19) | BIT(20)); - emac_write(EMAC_MACADDRLO, val); - emac_set_type0addr(priv, ch, mac_addr); + rt_uint32_t val; + emac_write(EMAC_MACINDEX, index); + val = ((mac_addr[3] << 24) | (mac_addr[2] << 16) | \ + (mac_addr[1] << 8) | (mac_addr[0])); + emac_write(EMAC_MACADDRHI, val); + val = ((mac_addr[5] << 8) | mac_addr[4] | ((ch & 0x7) << 16) | \ + (match << 19) | BIT(20)); + emac_write(EMAC_MACADDRLO, val); + emac_set_type0addr(priv, ch, mac_addr); } /** @@ -1101,18 +1101,18 @@ static void emac_set_type2addr(struct emac_priv *priv, rt_uint32_t ch, */ static void emac_setmac(struct emac_priv *priv, rt_uint32_t ch, char *mac_addr) { - if (priv->rx_addr_type == 0) { - emac_set_type0addr(priv, ch, mac_addr); - } else if (priv->rx_addr_type == 1) { - rt_uint32_t cnt; - for (cnt = 0; cnt < EMAC_MAX_TXRX_CHANNELS; cnt++) - emac_set_type1addr(priv, ch, mac_addr); - } else if (priv->rx_addr_type == 2) { - emac_set_type2addr(priv, ch, mac_addr, ch, 1); - emac_set_type0addr(priv, ch, mac_addr); - } else { - rt_kprintf("DaVinci EMAC: Wrong addressing\n"); - } + if (priv->rx_addr_type == 0) { + emac_set_type0addr(priv, ch, mac_addr); + } else if (priv->rx_addr_type == 1) { + rt_uint32_t cnt; + for (cnt = 0; cnt < EMAC_MAX_TXRX_CHANNELS; cnt++) + emac_set_type1addr(priv, ch, mac_addr); + } else if (priv->rx_addr_type == 2) { + emac_set_type2addr(priv, ch, mac_addr, ch, 1); + emac_set_type0addr(priv, ch, mac_addr); + } else { + rt_kprintf("DaVinci EMAC: Wrong addressing\n"); + } } @@ -1125,9 +1125,9 @@ static void emac_setmac(struct emac_priv *priv, rt_uint32_t ch, char *mac_addr) * pointer to the memory * */ -#define EMAC_TX_BD_MEM(priv) ((priv)->emac_ctrl_ram) -#define EMAC_RX_BD_MEM(priv) ((priv)->emac_ctrl_ram + \ - (((priv)->ctrl_ram_size) >> 1)) +#define EMAC_TX_BD_MEM(priv) ((priv)->emac_ctrl_ram) +#define EMAC_RX_BD_MEM(priv) ((priv)->emac_ctrl_ram + \ + (((priv)->ctrl_ram_size) >> 1)) /** * emac_init_txch: TX channel initialization @@ -1141,59 +1141,59 @@ static void emac_setmac(struct emac_priv *priv, rt_uint32_t ch, char *mac_addr) */ static int emac_init_txch(struct emac_priv *priv, rt_uint32_t ch) { - rt_uint32_t cnt, bd_size; - void __iomem *mem; - struct emac_tx_bd __iomem *curr_bd; - struct emac_txch *txch = RT_NULL; + rt_uint32_t cnt, bd_size; + void __iomem *mem; + struct emac_tx_bd __iomem *curr_bd; + struct emac_txch *txch = RT_NULL; - txch = rt_malloc(sizeof(struct emac_txch)); - if (RT_NULL == txch) { - rt_kprintf("DaVinci EMAC: TX Ch mem alloc failed"); - return -RT_ENOMEM; - } - rt_memset(txch, 0, sizeof(struct emac_txch)); - priv->txch[ch] = txch; - txch->service_max = EMAC_DEF_TX_MAX_SERVICE; - txch->active_queue_head = RT_NULL; - txch->active_queue_tail = RT_NULL; - txch->queue_active = 0; - txch->teardown_pending = 0; + txch = rt_malloc(sizeof(struct emac_txch)); + if (RT_NULL == txch) { + rt_kprintf("DaVinci EMAC: TX Ch mem alloc failed"); + return -RT_ENOMEM; + } + rt_memset(txch, 0, sizeof(struct emac_txch)); + priv->txch[ch] = txch; + txch->service_max = EMAC_DEF_TX_MAX_SERVICE; + txch->active_queue_head = RT_NULL; + txch->active_queue_tail = RT_NULL; + txch->queue_active = 0; + txch->teardown_pending = 0; - /* allocate memory for TX CPPI channel on a 4 byte boundry */ - txch->tx_complete = rt_malloc(txch->service_max * sizeof(rt_uint32_t)); - if (RT_NULL == txch->tx_complete) { - rt_kprintf("DaVinci EMAC: Tx service mem alloc failed"); - rt_free(txch); - return -RT_ENOMEM; - } - memset(txch->tx_complete, 0, txch->service_max * sizeof(rt_uint32_t)); + /* allocate memory for TX CPPI channel on a 4 byte boundry */ + txch->tx_complete = rt_malloc(txch->service_max * sizeof(rt_uint32_t)); + if (RT_NULL == txch->tx_complete) { + rt_kprintf("DaVinci EMAC: Tx service mem alloc failed"); + rt_free(txch); + return -RT_ENOMEM; + } + memset(txch->tx_complete, 0, txch->service_max * sizeof(rt_uint32_t)); - /* allocate buffer descriptor pool align every BD on four word - * boundry for future requirements */ - bd_size = (sizeof(struct emac_tx_bd) + 0xF) & ~0xF; - txch->num_bd = (priv->ctrl_ram_size >> 1) / bd_size; - txch->alloc_size = (((bd_size * txch->num_bd) + 0xF) & ~0xF); + /* allocate buffer descriptor pool align every BD on four word + * boundry for future requirements */ + bd_size = (sizeof(struct emac_tx_bd) + 0xF) & ~0xF; + txch->num_bd = (priv->ctrl_ram_size >> 1) / bd_size; + txch->alloc_size = (((bd_size * txch->num_bd) + 0xF) & ~0xF); - /* alloc TX BD memory */ - txch->bd_mem = EMAC_TX_BD_MEM(priv); - rt_memset((void *)txch->bd_mem, 0, txch->alloc_size); + /* alloc TX BD memory */ + txch->bd_mem = EMAC_TX_BD_MEM(priv); + rt_memset((void *)txch->bd_mem, 0, txch->alloc_size); - /* initialize the BD linked list */ - mem = (void __iomem *) - (((rt_uint32_t) txch->bd_mem + 0xF) & ~0xF); - txch->bd_pool_head = RT_NULL; - for (cnt = 0; cnt < txch->num_bd; cnt++) { - curr_bd = mem + (cnt * bd_size); - curr_bd->next = txch->bd_pool_head; - txch->bd_pool_head = curr_bd; - } + /* initialize the BD linked list */ + mem = (void __iomem *) + (((rt_uint32_t) txch->bd_mem + 0xF) & ~0xF); + txch->bd_pool_head = RT_NULL; + for (cnt = 0; cnt < txch->num_bd; cnt++) { + curr_bd = mem + (cnt * bd_size); + curr_bd->next = txch->bd_pool_head; + txch->bd_pool_head = curr_bd; + } - /* reset statistics counters */ - txch->out_of_tx_bd = 0; - txch->no_active_pkts = 0; - txch->active_queue_count = 0; + /* reset statistics counters */ + txch->out_of_tx_bd = 0; + txch->no_active_pkts = 0; + txch->active_queue_count = 0; - return 0; + return 0; } /** @@ -1209,74 +1209,74 @@ static int emac_init_txch(struct emac_priv *priv, rt_uint32_t ch) */ static int emac_init_rxch(struct emac_priv *priv, rt_uint32_t ch, char *param) { - rt_uint32_t cnt, bd_size; - void __iomem *mem; - struct emac_rx_bd __iomem *curr_bd; - struct emac_rxch *rxch = RT_NULL; + rt_uint32_t cnt, bd_size; + void __iomem *mem; + struct emac_rx_bd __iomem *curr_bd; + struct emac_rxch *rxch = RT_NULL; - rxch = rt_malloc(sizeof(struct emac_rxch)); - if (RT_NULL == rxch) { - rt_kprintf("DaVinci EMAC: RX Ch mem alloc failed"); - return -ENOMEM; - } - rt_memset(rxch, 0, sizeof(struct emac_rxch)); - priv->rxch[ch] = rxch; - rxch->buf_size = priv->rx_buf_size; - rxch->service_max = EMAC_DEF_RX_MAX_SERVICE; - rxch->queue_active = 0; - rxch->teardown_pending = 0; + rxch = rt_malloc(sizeof(struct emac_rxch)); + if (RT_NULL == rxch) { + rt_kprintf("DaVinci EMAC: RX Ch mem alloc failed"); + return -ENOMEM; + } + rt_memset(rxch, 0, sizeof(struct emac_rxch)); + priv->rxch[ch] = rxch; + rxch->buf_size = priv->rx_buf_size; + rxch->service_max = EMAC_DEF_RX_MAX_SERVICE; + rxch->queue_active = 0; + rxch->teardown_pending = 0; - /* save mac address */ - for (cnt = 0; cnt < 6; cnt++) - rxch->mac_addr[cnt] = param[cnt]; + /* save mac address */ + for (cnt = 0; cnt < 6; cnt++) + rxch->mac_addr[cnt] = param[cnt]; - /* allocate buffer descriptor pool align every BD on four word - * boundry for future requirements */ - bd_size = (sizeof(struct emac_rx_bd) + 0xF) & ~0xF; - rxch->num_bd = (priv->ctrl_ram_size >> 1) / bd_size; - rxch->alloc_size = (((bd_size * rxch->num_bd) + 0xF) & ~0xF); - rxch->bd_mem = EMAC_RX_BD_MEM(priv); + /* allocate buffer descriptor pool align every BD on four word + * boundry for future requirements */ + bd_size = (sizeof(struct emac_rx_bd) + 0xF) & ~0xF; + rxch->num_bd = (priv->ctrl_ram_size >> 1) / bd_size; + rxch->alloc_size = (((bd_size * rxch->num_bd) + 0xF) & ~0xF); + rxch->bd_mem = EMAC_RX_BD_MEM(priv); - rt_memset((void *)rxch->bd_mem, 0, rxch->alloc_size); - rxch->pkt_queue.buf_list = &rxch->buf_queue; + rt_memset((void *)rxch->bd_mem, 0, rxch->alloc_size); + rxch->pkt_queue.buf_list = &rxch->buf_queue; - /* allocate RX buffer and initialize the BD linked list */ - mem = (void __iomem *) - (((rt_uint32_t) rxch->bd_mem + 0xF) & ~0xF); - rxch->active_queue_head = RT_NULL; - rxch->active_queue_tail = mem; - for (cnt = 0; cnt < rxch->num_bd; cnt++) { - curr_bd = mem + (cnt * bd_size); - /* for future use the last parameter contains the BD ptr */ - curr_bd->data_ptr = emac_net_alloc_rx_buf(priv, - rxch->buf_size, - (void **)&curr_bd->buf_token, - EMAC_DEF_RX_CH); - if (curr_bd->data_ptr == RT_NULL) { - rt_kprintf("DaVinci EMAC: RX buf mem alloc " \ - "failed for ch %d\n", ch); - rt_free(rxch); - return -RT_ENOMEM; - } + /* allocate RX buffer and initialize the BD linked list */ + mem = (void __iomem *) + (((rt_uint32_t) rxch->bd_mem + 0xF) & ~0xF); + rxch->active_queue_head = RT_NULL; + rxch->active_queue_tail = mem; + for (cnt = 0; cnt < rxch->num_bd; cnt++) { + curr_bd = mem + (cnt * bd_size); + /* for future use the last parameter contains the BD ptr */ + curr_bd->data_ptr = emac_net_alloc_rx_buf(priv, + rxch->buf_size, + (void **)&curr_bd->buf_token, + EMAC_DEF_RX_CH); + if (curr_bd->data_ptr == RT_NULL) { + rt_kprintf("DaVinci EMAC: RX buf mem alloc " \ + "failed for ch %d\n", ch); + rt_free(rxch); + return -RT_ENOMEM; + } - /* populate the hardware descriptor */ - curr_bd->h_next = emac_virt_to_phys(rxch->active_queue_head); - curr_bd->buff_ptr = virt_to_phys(curr_bd->data_ptr); - curr_bd->off_b_len = rxch->buf_size; - curr_bd->mode = EMAC_CPPI_OWNERSHIP_BIT; + /* populate the hardware descriptor */ + curr_bd->h_next = emac_virt_to_phys(rxch->active_queue_head); + curr_bd->buff_ptr = virt_to_phys(curr_bd->data_ptr); + curr_bd->off_b_len = rxch->buf_size; + curr_bd->mode = EMAC_CPPI_OWNERSHIP_BIT; - /* write back to hardware memory */ - BD_CACHE_WRITEBACK_INVALIDATE((rt_uint32_t) curr_bd, - EMAC_BD_LENGTH_FOR_CACHE); - curr_bd->next = rxch->active_queue_head; - rxch->active_queue_head = curr_bd; - } + /* write back to hardware memory */ + BD_CACHE_WRITEBACK_INVALIDATE((rt_uint32_t) curr_bd, + EMAC_BD_LENGTH_FOR_CACHE); + curr_bd->next = rxch->active_queue_head; + rxch->active_queue_head = curr_bd; + } - /* At this point rxCppi->activeQueueHead points to the first - RX BD ready to be given to RX HDP and rxch->active_queue_tail - points to the last RX BD - */ - return 0; + /* At this point rxCppi->activeQueueHead points to the first + RX BD ready to be given to RX HDP and rxch->active_queue_tail + points to the last RX BD + */ + return 0; } @@ -1289,23 +1289,23 @@ static int emac_init_rxch(struct emac_priv *priv, rt_uint32_t ch, char *param) */ static void emac_int_disable(struct emac_priv *priv) { - if (priv->version == EMAC_VERSION_2) { - unsigned long flags; + if (priv->version == EMAC_VERSION_2) { + unsigned long flags; - rt_interrupt_enter(); + rt_interrupt_enter(); - /* Program C0_Int_En to zero to turn off - * interrupts to the CPU */ - emac_ctrl_write(EMAC_DM646X_CMRXINTEN, 0x0); - emac_ctrl_write(EMAC_DM646X_CMTXINTEN, 0x0); - /* NOTE: Rx Threshold and Misc interrupts are not disabled */ + /* Program C0_Int_En to zero to turn off + * interrupts to the CPU */ + emac_ctrl_write(EMAC_DM646X_CMRXINTEN, 0x0); + emac_ctrl_write(EMAC_DM646X_CMTXINTEN, 0x0); + /* NOTE: Rx Threshold and Misc interrupts are not disabled */ - rt_interrupt_leave(); + rt_interrupt_leave(); - } else { - /* Set DM644x control registers for interrupt control */ - emac_ctrl_write(EMAC_CTRL_EWCTL, 0x0); - } + } else { + /* Set DM644x control registers for interrupt control */ + emac_ctrl_write(EMAC_CTRL_EWCTL, 0x0); + } } @@ -1318,31 +1318,31 @@ static void emac_int_disable(struct emac_priv *priv) */ static void emac_int_enable(struct emac_priv *priv) { - if (priv->version == EMAC_VERSION_2) { - /*if (priv->int_enable) - priv->int_enable();*/ + if (priv->version == EMAC_VERSION_2) { + /*if (priv->int_enable) + priv->int_enable();*/ - emac_ctrl_write(EMAC_DM646X_CMRXINTEN, 0xff); - emac_ctrl_write(EMAC_DM646X_CMTXINTEN, 0xff); + emac_ctrl_write(EMAC_DM646X_CMRXINTEN, 0xff); + emac_ctrl_write(EMAC_DM646X_CMTXINTEN, 0xff); - /* In addition to turning on interrupt Enable, we need - * ack by writing appropriate values to the EOI - * register */ + /* In addition to turning on interrupt Enable, we need + * ack by writing appropriate values to the EOI + * register */ - /* NOTE: Rx Threshold and Misc interrupts are not enabled */ + /* NOTE: Rx Threshold and Misc interrupts are not enabled */ - /* ack rxen only then a new pulse will be generated */ - emac_write(EMAC_DM646X_MACEOIVECTOR, - EMAC_DM646X_MAC_EOI_C0_RXEN); + /* ack rxen only then a new pulse will be generated */ + emac_write(EMAC_DM646X_MACEOIVECTOR, + EMAC_DM646X_MAC_EOI_C0_RXEN); - /* ack txen- only then a new pulse will be generated */ - emac_write(EMAC_DM646X_MACEOIVECTOR, - EMAC_DM646X_MAC_EOI_C0_TXEN); + /* ack txen- only then a new pulse will be generated */ + emac_write(EMAC_DM646X_MACEOIVECTOR, + EMAC_DM646X_MAC_EOI_C0_TXEN); - } else { - /* Set DM644x control registers for interrupt control */ - emac_ctrl_write(EMAC_CTRL_EWCTL, 0x1); - } + } else { + /* Set DM644x control registers for interrupt control */ + emac_ctrl_write(EMAC_CTRL_EWCTL, 0x1); + } } @@ -1354,11 +1354,11 @@ static void emac_int_enable(struct emac_priv *priv) */ static void emac_irq(int irq, void *param) { - struct emac_priv *priv = param; + struct emac_priv *priv = param; - ++priv->isr_count; - emac_int_disable(priv); - eth_device_ready(&priv->parent); + ++priv->isr_count; + emac_int_disable(priv); + eth_device_ready(&priv->parent); } @@ -1374,77 +1374,77 @@ static void emac_irq(int irq, void *param) */ static int emac_hw_enable(struct emac_priv *priv) { - rt_uint32_t ch, val, mbp_enable, mac_control; + rt_uint32_t ch, val, mbp_enable, mac_control; - /* Soft reset */ - emac_write(EMAC_SOFTRESET, 1); - while (emac_read(EMAC_SOFTRESET)); + /* Soft reset */ + emac_write(EMAC_SOFTRESET, 1); + while (emac_read(EMAC_SOFTRESET)); - /* Disable interrupt & Set pacing for more interrupts initially */ - emac_int_disable(priv); + /* Disable interrupt & Set pacing for more interrupts initially */ + emac_int_disable(priv); - /* Full duplex enable bit set when auto negotiation happens */ - mac_control = - (((EMAC_DEF_TXPRIO_FIXED) ? (EMAC_MACCONTROL_TXPTYPE) : 0x0) | - ((priv->speed == 1000) ? EMAC_MACCONTROL_GIGABITEN : 0x0) | - ((EMAC_DEF_TXPACING_EN) ? (EMAC_MACCONTROL_TXPACEEN) : 0x0) | - ((priv->duplex == DUPLEX_FULL) ? 0x1 : 0)); - emac_write(EMAC_MACCONTROL, mac_control); + /* Full duplex enable bit set when auto negotiation happens */ + mac_control = + (((EMAC_DEF_TXPRIO_FIXED) ? (EMAC_MACCONTROL_TXPTYPE) : 0x0) | + ((priv->speed == 1000) ? EMAC_MACCONTROL_GIGABITEN : 0x0) | + ((EMAC_DEF_TXPACING_EN) ? (EMAC_MACCONTROL_TXPACEEN) : 0x0) | + ((priv->duplex == DUPLEX_FULL) ? 0x1 : 0)); + emac_write(EMAC_MACCONTROL, mac_control); - mbp_enable = - (((EMAC_DEF_PASS_CRC) ? (EMAC_RXMBP_PASSCRC_MASK) : 0x0) | - ((EMAC_DEF_QOS_EN) ? (EMAC_RXMBP_QOSEN_MASK) : 0x0) | - ((EMAC_DEF_NO_BUFF_CHAIN) ? (EMAC_RXMBP_NOCHAIN_MASK) : 0x0) | - ((EMAC_DEF_MACCTRL_FRAME_EN) ? (EMAC_RXMBP_CMFEN_MASK) : 0x0) | - ((EMAC_DEF_SHORT_FRAME_EN) ? (EMAC_RXMBP_CSFEN_MASK) : 0x0) | - ((EMAC_DEF_ERROR_FRAME_EN) ? (EMAC_RXMBP_CEFEN_MASK) : 0x0) | - ((EMAC_DEF_PROM_EN) ? (EMAC_RXMBP_CAFEN_MASK) : 0x0) | - ((EMAC_DEF_PROM_CH & EMAC_RXMBP_CHMASK) << \ - EMAC_RXMBP_PROMCH_SHIFT) | - ((EMAC_DEF_BCAST_EN) ? (EMAC_RXMBP_BROADEN_MASK) : 0x0) | - ((EMAC_DEF_BCAST_CH & EMAC_RXMBP_CHMASK) << \ - EMAC_RXMBP_BROADCH_SHIFT) | - ((EMAC_DEF_MCAST_EN) ? (EMAC_RXMBP_MULTIEN_MASK) : 0x0) | - ((EMAC_DEF_MCAST_CH & EMAC_RXMBP_CHMASK) << \ - EMAC_RXMBP_MULTICH_SHIFT)); - emac_write(EMAC_RXMBPENABLE, mbp_enable); - emac_write(EMAC_RXMAXLEN, (EMAC_DEF_MAX_FRAME_SIZE & - EMAC_RX_MAX_LEN_MASK)); - emac_write(EMAC_RXBUFFEROFFSET, (EMAC_DEF_BUFFER_OFFSET & - EMAC_RX_BUFFER_OFFSET_MASK)); - emac_write(EMAC_RXFILTERLOWTHRESH, 0); - emac_write(EMAC_RXUNICASTCLEAR, EMAC_RX_UNICAST_CLEAR_ALL); - priv->rx_addr_type = (emac_read(EMAC_MACCONFIG) >> 8) & 0xFF; + mbp_enable = + (((EMAC_DEF_PASS_CRC) ? (EMAC_RXMBP_PASSCRC_MASK) : 0x0) | + ((EMAC_DEF_QOS_EN) ? (EMAC_RXMBP_QOSEN_MASK) : 0x0) | + ((EMAC_DEF_NO_BUFF_CHAIN) ? (EMAC_RXMBP_NOCHAIN_MASK) : 0x0) | + ((EMAC_DEF_MACCTRL_FRAME_EN) ? (EMAC_RXMBP_CMFEN_MASK) : 0x0) | + ((EMAC_DEF_SHORT_FRAME_EN) ? (EMAC_RXMBP_CSFEN_MASK) : 0x0) | + ((EMAC_DEF_ERROR_FRAME_EN) ? (EMAC_RXMBP_CEFEN_MASK) : 0x0) | + ((EMAC_DEF_PROM_EN) ? (EMAC_RXMBP_CAFEN_MASK) : 0x0) | + ((EMAC_DEF_PROM_CH & EMAC_RXMBP_CHMASK) << \ + EMAC_RXMBP_PROMCH_SHIFT) | + ((EMAC_DEF_BCAST_EN) ? (EMAC_RXMBP_BROADEN_MASK) : 0x0) | + ((EMAC_DEF_BCAST_CH & EMAC_RXMBP_CHMASK) << \ + EMAC_RXMBP_BROADCH_SHIFT) | + ((EMAC_DEF_MCAST_EN) ? (EMAC_RXMBP_MULTIEN_MASK) : 0x0) | + ((EMAC_DEF_MCAST_CH & EMAC_RXMBP_CHMASK) << \ + EMAC_RXMBP_MULTICH_SHIFT)); + emac_write(EMAC_RXMBPENABLE, mbp_enable); + emac_write(EMAC_RXMAXLEN, (EMAC_DEF_MAX_FRAME_SIZE & + EMAC_RX_MAX_LEN_MASK)); + emac_write(EMAC_RXBUFFEROFFSET, (EMAC_DEF_BUFFER_OFFSET & + EMAC_RX_BUFFER_OFFSET_MASK)); + emac_write(EMAC_RXFILTERLOWTHRESH, 0); + emac_write(EMAC_RXUNICASTCLEAR, EMAC_RX_UNICAST_CLEAR_ALL); + priv->rx_addr_type = (emac_read(EMAC_MACCONFIG) >> 8) & 0xFF; - val = emac_read(EMAC_TXCONTROL); - val |= EMAC_TX_CONTROL_TX_ENABLE_VAL; - emac_write(EMAC_TXCONTROL, val); - val = emac_read(EMAC_RXCONTROL); - val |= EMAC_RX_CONTROL_RX_ENABLE_VAL; - emac_write(EMAC_RXCONTROL, val); - emac_write(EMAC_MACINTMASKSET, EMAC_MAC_HOST_ERR_INTMASK_VAL); + val = emac_read(EMAC_TXCONTROL); + val |= EMAC_TX_CONTROL_TX_ENABLE_VAL; + emac_write(EMAC_TXCONTROL, val); + val = emac_read(EMAC_RXCONTROL); + val |= EMAC_RX_CONTROL_RX_ENABLE_VAL; + emac_write(EMAC_RXCONTROL, val); + emac_write(EMAC_MACINTMASKSET, EMAC_MAC_HOST_ERR_INTMASK_VAL); - for (ch = 0; ch < EMAC_DEF_MAX_TX_CH; ch++) { - emac_write(EMAC_TXHDP(ch), 0); - emac_write(EMAC_TXINTMASKSET, BIT(ch)); - } - for (ch = 0; ch < EMAC_DEF_MAX_RX_CH; ch++) { - struct emac_rxch *rxch = priv->rxch[ch]; - emac_setmac(priv, ch, rxch->mac_addr); - emac_write(EMAC_RXINTMASKSET, BIT(ch)); - rxch->queue_active = 1; - emac_write(EMAC_RXHDP(ch), - (unsigned int)(rxch->active_queue_head)); /* physcal addr */ - } + for (ch = 0; ch < EMAC_DEF_MAX_TX_CH; ch++) { + emac_write(EMAC_TXHDP(ch), 0); + emac_write(EMAC_TXINTMASKSET, BIT(ch)); + } + for (ch = 0; ch < EMAC_DEF_MAX_RX_CH; ch++) { + struct emac_rxch *rxch = priv->rxch[ch]; + emac_setmac(priv, ch, rxch->mac_addr); + emac_write(EMAC_RXINTMASKSET, BIT(ch)); + rxch->queue_active = 1; + emac_write(EMAC_RXHDP(ch), + (unsigned int)(rxch->active_queue_head)); /* physcal addr */ + } - /* Enable MII */ - val = emac_read(EMAC_MACCONTROL); - val |= (EMAC_MACCONTROL_GMIIEN); - emac_write(EMAC_MACCONTROL, val); + /* Enable MII */ + val = emac_read(EMAC_MACCONTROL); + val |= (EMAC_MACCONTROL_GMIIEN); + emac_write(EMAC_MACCONTROL, val); - /* Enable interrupts */ - emac_int_enable(priv); - return 0; + /* Enable interrupts */ + emac_int_enable(priv); + return 0; } @@ -1458,51 +1458,51 @@ static int emac_hw_enable(struct emac_priv *priv) */ static struct net_device_stats *emac_dev_getnetstats(struct emac_priv *priv) { - rt_uint32_t mac_control; - rt_uint32_t stats_clear_mask; + rt_uint32_t mac_control; + rt_uint32_t stats_clear_mask; - /* update emac hardware stats and reset the registers*/ + /* update emac hardware stats and reset the registers*/ - mac_control = emac_read(EMAC_MACCONTROL); + mac_control = emac_read(EMAC_MACCONTROL); - if (mac_control & EMAC_MACCONTROL_GMIIEN) - stats_clear_mask = EMAC_STATS_CLR_MASK; - else - stats_clear_mask = 0; + if (mac_control & EMAC_MACCONTROL_GMIIEN) + stats_clear_mask = EMAC_STATS_CLR_MASK; + else + stats_clear_mask = 0; - priv->net_dev_stats.multicast += emac_read(EMAC_RXMCASTFRAMES); - emac_write(EMAC_RXMCASTFRAMES, stats_clear_mask); + priv->net_dev_stats.multicast += emac_read(EMAC_RXMCASTFRAMES); + emac_write(EMAC_RXMCASTFRAMES, stats_clear_mask); - priv->net_dev_stats.collisions += (emac_read(EMAC_TXCOLLISION) + - emac_read(EMAC_TXSINGLECOLL) + - emac_read(EMAC_TXMULTICOLL)); - emac_write(EMAC_TXCOLLISION, stats_clear_mask); - emac_write(EMAC_TXSINGLECOLL, stats_clear_mask); - emac_write(EMAC_TXMULTICOLL, stats_clear_mask); + priv->net_dev_stats.collisions += (emac_read(EMAC_TXCOLLISION) + + emac_read(EMAC_TXSINGLECOLL) + + emac_read(EMAC_TXMULTICOLL)); + emac_write(EMAC_TXCOLLISION, stats_clear_mask); + emac_write(EMAC_TXSINGLECOLL, stats_clear_mask); + emac_write(EMAC_TXMULTICOLL, stats_clear_mask); - priv->net_dev_stats.rx_length_errors += (emac_read(EMAC_RXOVERSIZED) + - emac_read(EMAC_RXJABBER) + - emac_read(EMAC_RXUNDERSIZED)); - emac_write(EMAC_RXOVERSIZED, stats_clear_mask); - emac_write(EMAC_RXJABBER, stats_clear_mask); - emac_write(EMAC_RXUNDERSIZED, stats_clear_mask); + priv->net_dev_stats.rx_length_errors += (emac_read(EMAC_RXOVERSIZED) + + emac_read(EMAC_RXJABBER) + + emac_read(EMAC_RXUNDERSIZED)); + emac_write(EMAC_RXOVERSIZED, stats_clear_mask); + emac_write(EMAC_RXJABBER, stats_clear_mask); + emac_write(EMAC_RXUNDERSIZED, stats_clear_mask); - priv->net_dev_stats.rx_over_errors += (emac_read(EMAC_RXSOFOVERRUNS) + - emac_read(EMAC_RXMOFOVERRUNS)); - emac_write(EMAC_RXSOFOVERRUNS, stats_clear_mask); - emac_write(EMAC_RXMOFOVERRUNS, stats_clear_mask); + priv->net_dev_stats.rx_over_errors += (emac_read(EMAC_RXSOFOVERRUNS) + + emac_read(EMAC_RXMOFOVERRUNS)); + emac_write(EMAC_RXSOFOVERRUNS, stats_clear_mask); + emac_write(EMAC_RXMOFOVERRUNS, stats_clear_mask); - priv->net_dev_stats.rx_fifo_errors += emac_read(EMAC_RXDMAOVERRUNS); - emac_write(EMAC_RXDMAOVERRUNS, stats_clear_mask); + priv->net_dev_stats.rx_fifo_errors += emac_read(EMAC_RXDMAOVERRUNS); + emac_write(EMAC_RXDMAOVERRUNS, stats_clear_mask); - priv->net_dev_stats.tx_carrier_errors += - emac_read(EMAC_TXCARRIERSENSE); - emac_write(EMAC_TXCARRIERSENSE, stats_clear_mask); + priv->net_dev_stats.tx_carrier_errors += + emac_read(EMAC_TXCARRIERSENSE); + emac_write(EMAC_TXCARRIERSENSE, stats_clear_mask); - priv->net_dev_stats.tx_fifo_errors = emac_read(EMAC_TXUNDERRUN); - emac_write(EMAC_TXUNDERRUN, stats_clear_mask); + priv->net_dev_stats.tx_fifo_errors = emac_read(EMAC_TXUNDERRUN); + emac_write(EMAC_TXUNDERRUN, stats_clear_mask); - return &priv->net_dev_stats; + return &priv->net_dev_stats; } @@ -1511,164 +1511,164 @@ static struct net_device_stats *emac_dev_getnetstats(struct emac_priv *priv) static rt_err_t rt_davinci_emac_init(rt_device_t dev) { - struct emac_priv *priv = dev->user_data; - unsigned long paddr; - rt_uint32_t ch, rc; - int i; + struct emac_priv *priv = dev->user_data; + unsigned long paddr; + rt_uint32_t ch, rc; + int i; + + /* Configuration items */ + priv->rx_buf_size = EMAC_DEF_MAX_FRAME_SIZE + NET_IP_ALIGN; - /* Configuration items */ - priv->rx_buf_size = EMAC_DEF_MAX_FRAME_SIZE + NET_IP_ALIGN; + /* Clear basic hardware */ + for (ch = 0; ch < EMAC_MAX_TXRX_CHANNELS; ch++) { + emac_write(EMAC_TXHDP(ch), 0); + emac_write(EMAC_RXHDP(ch), 0); + emac_write(EMAC_RXHDP(ch), 0); + emac_write(EMAC_RXINTMASKCLEAR, EMAC_INT_MASK_CLEAR); + emac_write(EMAC_TXINTMASKCLEAR, EMAC_INT_MASK_CLEAR); + } + priv->mac_hash1 = 0; + priv->mac_hash2 = 0; + emac_write(EMAC_MACHASH1, 0); + emac_write(EMAC_MACHASH2, 0); - /* Clear basic hardware */ - for (ch = 0; ch < EMAC_MAX_TXRX_CHANNELS; ch++) { - emac_write(EMAC_TXHDP(ch), 0); - emac_write(EMAC_RXHDP(ch), 0); - emac_write(EMAC_RXHDP(ch), 0); - emac_write(EMAC_RXINTMASKCLEAR, EMAC_INT_MASK_CLEAR); - emac_write(EMAC_TXINTMASKCLEAR, EMAC_INT_MASK_CLEAR); - } - priv->mac_hash1 = 0; - priv->mac_hash2 = 0; - emac_write(EMAC_MACHASH1, 0); - emac_write(EMAC_MACHASH2, 0); + /* multi ch not supported - open 1 TX, 1RX ch by default */ + rc = emac_init_txch(priv, EMAC_DEF_TX_CH); + if (0 != rc) { + rt_kprintf("DaVinci EMAC: emac_init_txch() failed"); + return rc; + } + rc = emac_init_rxch(priv, EMAC_DEF_RX_CH, priv->mac_addr); + if (0 != rc) { + rt_kprintf("DaVinci EMAC: emac_init_rxch() failed"); + return rc; + } - /* multi ch not supported - open 1 TX, 1RX ch by default */ - rc = emac_init_txch(priv, EMAC_DEF_TX_CH); - if (0 != rc) { - rt_kprintf("DaVinci EMAC: emac_init_txch() failed"); - return rc; - } - rc = emac_init_rxch(priv, EMAC_DEF_RX_CH, priv->mac_addr); - if (0 != rc) { - rt_kprintf("DaVinci EMAC: emac_init_rxch() failed"); - return rc; - } + rt_hw_interrupt_install(IRQ_DM365_EMAC_RXPULSE, emac_irq, + (void *)priv, "EMAC_RXPULSE"); + rt_hw_interrupt_umask(IRQ_DM365_EMAC_RXPULSE); + rt_hw_interrupt_install(IRQ_DM365_EMAC_TXPULSE, emac_irq, + (void *)priv, "EMAC_TXPULSE"); + rt_hw_interrupt_umask(IRQ_DM365_EMAC_TXPULSE); + rt_hw_interrupt_install(IRQ_DM365_EMAC_RXTHRESH, emac_irq, + (void *)priv, "EMAC_RXTHRESH"); + rt_hw_interrupt_umask(IRQ_DM365_EMAC_RXTHRESH); + rt_hw_interrupt_install(IRQ_DM365_EMAC_MISCPULSE, emac_irq, + (void *)priv, "EMAC_MISCPULSE"); + rt_hw_interrupt_umask(IRQ_DM365_EMAC_MISCPULSE); - rt_hw_interrupt_install(IRQ_DM365_EMAC_RXPULSE, emac_irq, - (void *)priv, "EMAC_RXPULSE"); - rt_hw_interrupt_umask(IRQ_DM365_EMAC_RXPULSE); - rt_hw_interrupt_install(IRQ_DM365_EMAC_TXPULSE, emac_irq, - (void *)priv, "EMAC_TXPULSE"); - rt_hw_interrupt_umask(IRQ_DM365_EMAC_TXPULSE); - rt_hw_interrupt_install(IRQ_DM365_EMAC_RXTHRESH, emac_irq, - (void *)priv, "EMAC_RXTHRESH"); - rt_hw_interrupt_umask(IRQ_DM365_EMAC_RXTHRESH); - rt_hw_interrupt_install(IRQ_DM365_EMAC_MISCPULSE, emac_irq, - (void *)priv, "EMAC_MISCPULSE"); - rt_hw_interrupt_umask(IRQ_DM365_EMAC_MISCPULSE); + emac_mii_reset(priv); + davinci_emac_phy_init(dev); - emac_mii_reset(priv); - davinci_emac_phy_init(dev); + /* Start/Enable EMAC hardware */ + emac_hw_enable(priv); - /* Start/Enable EMAC hardware */ - emac_hw_enable(priv); + rt_timer_init(&priv->timer, "link_timer", + davinci_emac_update_link, + (void *)priv, + RT_TICK_PER_SECOND, + RT_TIMER_FLAG_PERIODIC); - rt_timer_init(&priv->timer, "link_timer", - davinci_emac_update_link, - (void *)priv, - RT_TICK_PER_SECOND, - RT_TIMER_FLAG_PERIODIC); + rt_timer_start(&priv->timer); + rt_kprintf("davinci emac initialized\n"); - rt_timer_start(&priv->timer); - rt_kprintf("davinci emac initialized\n"); - - return RT_EOK; + return RT_EOK; } static rt_err_t rt_davinci_emac_open(rt_device_t dev, rt_uint16_t oflag) { - return RT_EOK; + return RT_EOK; } static rt_err_t rt_davinci_emac_close(rt_device_t dev) { - return RT_EOK; + return RT_EOK; } static rt_size_t rt_davinci_emac_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size) { - rt_set_errno(-RT_ENOSYS); - return 0; + rt_set_errno(-RT_ENOSYS); + return 0; } static rt_size_t rt_davinci_emac_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size) { - rt_set_errno(-RT_ENOSYS); - return 0; + rt_set_errno(-RT_ENOSYS); + return 0; } static rt_err_t rt_davinci_emac_control(rt_device_t dev, int cmd, void *args) { - struct emac_priv *priv = dev->user_data; - switch(cmd) - { - case NIOCTL_GADDR: - /* get mac address */ - if(args) rt_memcpy(args, priv->mac_addr, 6); - else return -RT_ERROR; - break; + struct emac_priv *priv = dev->user_data; + switch(cmd) + { + case NIOCTL_GADDR: + /* get mac address */ + if(args) rt_memcpy(args, priv->mac_addr, 6); + else return -RT_ERROR; + break; - default : - break; - } + default : + break; + } - return RT_EOK; + return RT_EOK; } void dm365_emac_gpio_init(void) { - rt_uint32_t arm_intmux; + rt_uint32_t arm_intmux; - /* - * EMAC interrupts are multiplexed with GPIO interrupts - * Details are available at the DM365 ARM - * Subsystem Users Guide(sprufg5.pdf) pages 133 - 134 - */ - arm_intmux = davinci_readl(DM365_ARM_INTMUX); - arm_intmux |= (1 << 14)|(1 << 15)|(1 << 16)|(1 << 17); - davinci_writel(arm_intmux, DM365_ARM_INTMUX); + /* + * EMAC interrupts are multiplexed with GPIO interrupts + * Details are available at the DM365 ARM + * Subsystem Users Guide(sprufg5.pdf) pages 133 - 134 + */ + arm_intmux = davinci_readl(DM365_ARM_INTMUX); + arm_intmux |= (1 << 14)|(1 << 15)|(1 << 16)|(1 << 17); + davinci_writel(arm_intmux, DM365_ARM_INTMUX); } int rt_hw_davinci_emac_init() { - struct emac_priv *priv = &davinci_emac_device; - struct clk *emac_clk; - emac_clk = clk_get("EMACCLK"); - emac_bus_frequency = clk_get_rate(emac_clk); - psc_change_state(DAVINCI_DM365_LPSC_CPGMAC, PSC_ENABLE); - dm365_emac_gpio_init(); - rt_memset(&davinci_emac_device, 0, sizeof(davinci_emac_device)); - davinci_emac_device.emac_base = (void __iomem *)DM365_EMAC_CNTRL_BASE; - davinci_emac_device.ctrl_base = (void __iomem *)DM365_EMAC_WRAP_CNTRL_BASE; - davinci_emac_device.ctrl_ram_size = DM365_EMAC_CNTRL_RAM_SIZE; - davinci_emac_device.emac_ctrl_ram = (void __iomem *)DM365_EMAC_WRAP_RAM_BASE; - davinci_emac_device.mdio_base = (void __iomem *)DM365_EMAC_MDIO_BASE; - davinci_emac_device.version = EMAC_VERSION_2; - davinci_emac_device.rmii_en = 0; - davinci_emac_device.phy_addr = 0x09; - rt_sem_init(&priv->tx_lock, "tx_lock", 1, RT_IPC_FLAG_FIFO); - rt_sem_init(&priv->rx_lock, "rx_lock", 1, RT_IPC_FLAG_FIFO); + struct emac_priv *priv = &davinci_emac_device; + struct clk *emac_clk; + emac_clk = clk_get("EMACCLK"); + emac_bus_frequency = clk_get_rate(emac_clk); + psc_change_state(DAVINCI_DM365_LPSC_CPGMAC, PSC_ENABLE); + dm365_emac_gpio_init(); + rt_memset(&davinci_emac_device, 0, sizeof(davinci_emac_device)); + davinci_emac_device.emac_base = (void __iomem *)DM365_EMAC_CNTRL_BASE; + davinci_emac_device.ctrl_base = (void __iomem *)DM365_EMAC_WRAP_CNTRL_BASE; + davinci_emac_device.ctrl_ram_size = DM365_EMAC_CNTRL_RAM_SIZE; + davinci_emac_device.emac_ctrl_ram = (void __iomem *)DM365_EMAC_WRAP_RAM_BASE; + davinci_emac_device.mdio_base = (void __iomem *)DM365_EMAC_MDIO_BASE; + davinci_emac_device.version = EMAC_VERSION_2; + davinci_emac_device.rmii_en = 0; + davinci_emac_device.phy_addr = 0x09; + rt_sem_init(&priv->tx_lock, "tx_lock", 1, RT_IPC_FLAG_FIFO); + rt_sem_init(&priv->rx_lock, "rx_lock", 1, RT_IPC_FLAG_FIFO); + + davinci_emac_device.mac_addr[0] = 0x00; + davinci_emac_device.mac_addr[1] = 0x60; + davinci_emac_device.mac_addr[2] = 0x6E; + davinci_emac_device.mac_addr[3] = 0x11; + davinci_emac_device.mac_addr[4] = 0x22; + davinci_emac_device.mac_addr[5] = 0x33; + + davinci_emac_device.parent.parent.init = rt_davinci_emac_init; + davinci_emac_device.parent.parent.open = rt_davinci_emac_open; + davinci_emac_device.parent.parent.close = rt_davinci_emac_close; + davinci_emac_device.parent.parent.read = rt_davinci_emac_read; + davinci_emac_device.parent.parent.write = rt_davinci_emac_write; + davinci_emac_device.parent.parent.control = rt_davinci_emac_control; + davinci_emac_device.parent.parent.user_data = &davinci_emac_device; - davinci_emac_device.mac_addr[0] = 0x00; - davinci_emac_device.mac_addr[1] = 0x60; - davinci_emac_device.mac_addr[2] = 0x6E; - davinci_emac_device.mac_addr[3] = 0x11; - davinci_emac_device.mac_addr[4] = 0x22; - davinci_emac_device.mac_addr[5] = 0x33; - - davinci_emac_device.parent.parent.init = rt_davinci_emac_init; - davinci_emac_device.parent.parent.open = rt_davinci_emac_open; - davinci_emac_device.parent.parent.close = rt_davinci_emac_close; - davinci_emac_device.parent.parent.read = rt_davinci_emac_read; - davinci_emac_device.parent.parent.write = rt_davinci_emac_write; - davinci_emac_device.parent.parent.control = rt_davinci_emac_control; - davinci_emac_device.parent.parent.user_data = &davinci_emac_device; + davinci_emac_device.parent.eth_rx = rt_davinci_emac_rx; + davinci_emac_device.parent.eth_tx = rt_davinci_emac_tx; - davinci_emac_device.parent.eth_rx = rt_davinci_emac_rx; - davinci_emac_device.parent.eth_tx = rt_davinci_emac_tx; + eth_device_init(&(davinci_emac_device.parent), "e0"); - eth_device_init(&(davinci_emac_device.parent), "e0"); - } INIT_DEVICE_EXPORT(rt_hw_davinci_emac_init); @@ -1679,68 +1679,68 @@ INIT_DEVICE_EXPORT(rt_hw_davinci_emac_init); void dump_emac_stats(void) { - int i; - struct emac_priv *emac; - struct net_device_stats *stats; - rt_device_t dev = rt_device_find("e0"); + int i; + struct emac_priv *emac; + struct net_device_stats *stats; + rt_device_t dev = rt_device_find("e0"); - if(dev == RT_NULL) - return; + if(dev == RT_NULL) + return; - emac = (struct emac_priv *)dev->user_data; + emac = (struct emac_priv *)dev->user_data; - stats = emac_dev_getnetstats(emac); - rt_kprintf("rx_packets = %d\n" - "tx_packets = %d\n" - "rx_bytes = %d\n" - "tx_bytes = %d\n" - "rx_errors = %d\n" - "tx_errors = %d\n" - "rx_dropped = %d\n" - "tx_dropped = %d\n" - "multicast = %d\n" - "collisions = %d\n", - stats->rx_packets, - stats->tx_packets, - stats->rx_bytes, - stats->tx_bytes, - stats->rx_errors, - stats->tx_errors, - stats->rx_dropped, - stats->tx_dropped, - stats->multicast, - stats->collisions); + stats = emac_dev_getnetstats(emac); + rt_kprintf("rx_packets = %d\n" + "tx_packets = %d\n" + "rx_bytes = %d\n" + "tx_bytes = %d\n" + "rx_errors = %d\n" + "tx_errors = %d\n" + "rx_dropped = %d\n" + "tx_dropped = %d\n" + "multicast = %d\n" + "collisions = %d\n", + stats->rx_packets, + stats->tx_packets, + stats->rx_bytes, + stats->tx_bytes, + stats->rx_errors, + stats->tx_errors, + stats->rx_dropped, + stats->tx_dropped, + stats->multicast, + stats->collisions); - rt_kprintf("rx_length_errors = %d\n" - "rx_over_errors = %d\n" - "rx_crc_errors = %d\n" - "rx_frame_errors = %d\n" - "rx_fifo_errors = %d\n" - "rx_missed_errors = %d\n", - stats->rx_length_errors, - stats->rx_over_errors, - stats->rx_crc_errors, - stats->rx_frame_errors, - stats->rx_fifo_errors, - stats->rx_missed_errors); + rt_kprintf("rx_length_errors = %d\n" + "rx_over_errors = %d\n" + "rx_crc_errors = %d\n" + "rx_frame_errors = %d\n" + "rx_fifo_errors = %d\n" + "rx_missed_errors = %d\n", + stats->rx_length_errors, + stats->rx_over_errors, + stats->rx_crc_errors, + stats->rx_frame_errors, + stats->rx_fifo_errors, + stats->rx_missed_errors); - rt_kprintf("tx_aborted_errors = %d\n" - "tx_carrier_errors = %d\n" - "tx_fifo_errors = %d\n" - "tx_heartbeat_errors = %d\n" - "tx_window_errors = %d\n", - stats->tx_aborted_errors, - stats->tx_carrier_errors, - stats->tx_fifo_errors, - stats->tx_heartbeat_errors, - stats->tx_window_errors); + rt_kprintf("tx_aborted_errors = %d\n" + "tx_carrier_errors = %d\n" + "tx_fifo_errors = %d\n" + "tx_heartbeat_errors = %d\n" + "tx_window_errors = %d\n", + stats->tx_aborted_errors, + stats->tx_carrier_errors, + stats->tx_fifo_errors, + stats->tx_heartbeat_errors, + stats->tx_window_errors); - rt_kprintf("rx_compressed = %d\n" - "tx_compressed = %d\n", - stats->rx_compressed, - stats->tx_compressed); + rt_kprintf("rx_compressed = %d\n" + "tx_compressed = %d\n", + stats->rx_compressed, + stats->tx_compressed); - rt_kprintf("\n"); + rt_kprintf("\n"); } FINSH_FUNCTION_EXPORT(dump_emac_stats, dump emac statistics); @@ -1748,8 +1748,8 @@ FINSH_FUNCTION_EXPORT(dump_emac_stats, dump emac statistics); #ifdef FINSH_USING_MSH int cmd_dump_emac_stats(int argc, char** argv) { - dump_emac_stats(); - return 0; + dump_emac_stats(); + return 0; } FINSH_FUNCTION_EXPORT_ALIAS(cmd_dump_emac_stats, __cmd_dump_emac_stats, dump emac statistics.); #endif |