#define MAX_VLANS 16
#define MAX_PORTS 9
+#undef DUMP_MII_IO
typedef struct ip175c_reg {
u16 p; // phy
/*********** CONSTANTS ***********/
struct register_mappings {
char *NAME;
- u16 MODEL_NO; // compare to bits 4-9 of MII register 0,3.
+ u16 MODEL_NO; // Compare to bits 4-9 of MII register 0,3.
bitnum NUM_PORTS;
bitnum CPU_PORT;
.ADD_TAG_REG = {0,23},
.REMOVE_TAG_REG = {0,23},
- .ADD_TAG_BIT = {11,12,13,14,15,1,-1,-1,-1},
- .REMOVE_TAG_BIT = {6,7,8,9,10,0,-1,-1,-1},
+ .ADD_TAG_BIT = {11,12,13,14,15,-1,-1,-1,-1},
+ .REMOVE_TAG_BIT = {6,7,8,9,10,-1,-1,-1,-1},
- .SIMPLE_VLAN_REGISTERS = 1,
+ .SIMPLE_VLAN_REGISTERS = 0,
- // Only programmable via. EEPROM
+ // Only programmable via EEPROM
.VLAN_LOOKUP_REG = NOTSUPPORTED,// +N/2
.VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
- .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,15,-1,-1,-1},
- .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,7,-1,-1,-1},
+ .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,-1,-1,-1,-1},
+ .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,-1,-1,-1,-1},
- .TAG_VLAN_MASK_REG = NOTSUPPORTED, // +N/2
- .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,-1,-1,-1},
- .TAG_VLAN_MASK_ODD_BIT = {8,9,10,11,12,13,-1,-1,-1},
+ .TAG_VLAN_MASK_REG = NOTSUPPORTED, // +N/2,
+ .TAG_VLAN_MASK_EVEN_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ .TAG_VLAN_MASK_ODD_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
.RESET_VAL = -1,
.RESET_REG = NOTSUPPORTED,
.NUMLAN_GROUPS_MAX = -1,
.NUMLAN_GROUPS_BIT = -1, // {0-2}
- .NUM_PORTS = 6,
- .CPU_PORT = 5,
+ .NUM_PORTS = 5,
+ .CPU_PORT = 4,
- .MII_REGISTER_EN = {0, 12},
+ .MII_REGISTER_EN = {0, 18},
.MII_REGISTER_EN_BIT = 7,
};
+
struct ip175c_state {
struct switch_dev dev;
struct mii_bus *mii_bus;
int router_mode; // ROUTER_EN
int vlan_enabled; // TAG_VLAN_EN
struct port_state {
- struct phy_device *phy;
+ u16 pvid;
unsigned int shareports;
- u16 vlan_tag;
} ports[MAX_PORTS];
unsigned int add_tag;
unsigned int remove_tag;
int num_vlans;
unsigned int vlan_ports[MAX_VLANS];
const struct register_mappings *regs;
- reg proc_mii; /*!< phy/reg for the low level register access via /proc */
- int proc_errno; /*!< error code of the last read/write to "val" */
+ reg proc_mii; // phy/reg for the low level register access via swconfig
char buf[80];
};
-static int getPhy (struct ip175c_state *state, reg mii)
+
+static int ip_phy_read(struct ip175c_state *state, int port, int reg)
+{
+ int val = mdiobus_read(state->mii_bus, port, reg);
+ if (val < 0)
+ pr_warning("IP175C: Unable to get MII register %d,%d: error %d\n", port, reg, -val);
+#ifdef DUMP_MII_IO
+ else
+ pr_debug("IP175C: Read MII(%d,%d) -> %04x\n", port, reg, val);
+#endif
+ return val;
+}
+
+static int ip_phy_write(struct ip175c_state *state, int port, int reg, u16 val)
{
- struct mii_bus *bus = state->mii_bus;
int err;
+#ifdef DUMP_MII_IO
+ pr_debug("IP175C: Write MII(%d,%d) <- %04x\n", port, reg, val);
+#endif
+ err = mdiobus_write(state->mii_bus, port, reg, val);
+ if (err < 0)
+ pr_warning("IP175C: Unable to write MII register %d,%d: error %d\n", port, reg, -err);
+ return err;
+}
+
+static int ip_phy_write_masked(struct ip175c_state *state, int port, int reg, unsigned int mask, unsigned int data)
+{
+ int val = ip_phy_read(state, port, reg);
+ if (val < 0)
+ return 0;
+ return ip_phy_write(state, port, reg, (val & ~mask) | data);
+}
+
+static int getPhy(struct ip175c_state *state, reg mii)
+{
if (!REG_SUPP(mii))
return -EFAULT;
- mutex_lock(&bus->mdio_lock);
- err = bus->read(bus, mii.p, mii.m);
- mutex_unlock(&bus->mdio_lock);
- if (err < 0) {
- state->proc_errno = err;
- pr_warning("IP175C: Unable to get MII register %d,%d: error %d\n", mii.p,mii.m,-err);
- return err;
- }
-
- pr_debug("IP175C: Read MII register %d,%d -> %04x\n", mii.p, mii.m, err);
- return err;
+ return ip_phy_read(state, mii.p, mii.m);
}
-static int setPhy (struct ip175c_state *state, reg mii, u16 value)
+static int setPhy(struct ip175c_state *state, reg mii, u16 value)
{
- struct mii_bus *bus = state->mii_bus;
int err;
if (!REG_SUPP(mii))
return -EFAULT;
- mutex_lock(&bus->mdio_lock);
- err = bus->write(bus, mii.p, mii.m, value);
- mutex_unlock(&bus->mdio_lock);
- if (err < 0) {
- state->proc_errno = err;
- pr_warning("IP175C: Unable to set MII register %d,%d to %d: error %d\n", mii.p,mii.m,value,-err);
+ err = ip_phy_write(state, mii.p, mii.m, value);
+ if (err < 0)
return err;
- }
- mdelay(2);
getPhy(state, mii);
- pr_debug("IP175C: Set MII register %d,%d to %04x\n", mii.p, mii.m, value);
return 0;
}
+
/**
* These two macros are to simplify the mapping of logical bits to the bits in hardware.
* NOTE: these macros will return if there is an error!
return val; \
} while (0)
+
static int get_model(struct ip175c_state *state)
{
reg oui_id_reg = {0, 2};
state->num_vlans+=1; // does not include WAN.
}
-
val = getPhy(state, state->regs->VLAN_CONTROL_REG);
if (val < 0) {
return 0;
return 0;
}
-/** Get all state variables for VLAN mappings and port-based tagging. **/
+
+/** Get all state variables for VLAN mappings and port-based tagging **/
static int get_state(struct ip175c_state *state)
{
int i, j;
if (state->vlan_enabled == -1) {
// not sure how to get this...
- state->vlan_enabled = (!state->remove_tag && !state->add_tag);
+ state->vlan_enabled = (state->remove_tag || state->add_tag);
}
if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
if (val < 0) {
return val;
}
- state->ports[i].vlan_tag = val;
+ state->ports[i].pvid = val;
} else {
- state->ports[i].vlan_tag = 0;
+ state->ports[i].pvid = 0;
}
}
for (j=0; j<MAX_VLANS; j++) {
state->vlan_ports[j] = 0;
for (i=0; i<state->regs->NUM_PORTS; i++) {
- if ((state->ports[i].vlan_tag == j) ||
- (state->ports[i].vlan_tag == 0)) {
+ if ((state->ports[i].pvid == j) ||
+ (state->ports[i].pvid == 0)) {
state->vlan_ports[j] |= (1<<i);
}
}
return 0;
}
-
/** Only update vlan and router flags in the switch **/
static int update_flags(struct ip175c_state *state)
{
for (i=0; i<MAX_PORTS; i++) {
if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
int err = setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i],
- state->ports[i].vlan_tag);
+ state->ports[i].pvid);
if (err < 0) {
return err;
}
}
return update_flags(state);
-
- // software reset: 30.0 = 0x175C
- // wait 2ms
- // reset ports 0,1,2,3,4
}
-/*
- Uses only the VLAN port mask and the add tag mask to generate the other fields:
- which ports are part of the same VLAN, removing vlan tags, and VLAN tag ids.
+/**
+ * Uses only the VLAN port mask and the add tag mask to generate the other fields:
+ * which ports are part of the same VLAN, removing vlan tags, and VLAN tag ids.
*/
static void correct_vlan_state(struct ip175c_state *state)
{
state->num_vlans = 0;
for (i=0; i<MAX_VLANS; i++) {
if (state->vlan_ports[i] != 0) {
- state->num_vlans = i+1; //hack -- we need to store the "set" vlans somewhere...
- }
- }
-
- for (i=0; i<state->regs->NUM_PORTS; i++) {
- int oldtag = state->ports[i].vlan_tag;
- if (oldtag >= 0 && oldtag < MAX_VLANS) {
- if (state->vlan_ports[oldtag] & (1<<i)) {
- continue; // primary vlan is valid.
- }
+ state->num_vlans = i+1; // Hack -- we need to store the "set" vlans somewhere...
}
- state->ports[i].vlan_tag = 0;
}
for (i=0; i<state->regs->NUM_PORTS; i++) {
unsigned int portmask = (1<<i);
+ if (!state->vlan_enabled) {
+ // Share with everybody!
+ state->ports[i].shareports = (1<<state->regs->NUM_PORTS)-1;
+ continue;
+ }
state->ports[i].shareports = portmask;
for (j=0; j<MAX_VLANS; j++) {
- if (state->vlan_ports[j] & portmask) {
+ if (state->vlan_ports[j] & portmask)
state->ports[i].shareports |= state->vlan_ports[j];
- if (state->ports[i].vlan_tag == 0) {
- state->ports[i].vlan_tag = j;
- }
- }
- }
- if (!state->vlan_enabled) {
- // share with everybody!
- state->ports[i].shareports = (1<<state->regs->NUM_PORTS)-1;
}
}
state->remove_tag = ((~state->add_tag) & ((1<<state->regs->NUM_PORTS)-1));
struct ip175c_state *state = dev->priv;
int err;
- err = get_state(state); // may be set in get_state.
+ err = get_state(state); // May be set in get_state.
if (err < 0)
return err;
val->value.i = state->vlan_enabled;
enable = val->value.i;
if (state->vlan_enabled == enable) {
- // do not change any state.
+ // Do not change any state.
return 0;
}
state->vlan_enabled = enable;
// Otherwise, if we are switching state, set fields to a known default.
state->remove_tag = 0x0000;
state->add_tag = 0x0000;
- for (i = 0; i < MAX_PORTS; i++) {
- state->ports[i].vlan_tag = 0;
+ for (i = 0; i < MAX_PORTS; i++)
state->ports[i].shareports = 0xffff;
- }
- for (i = 0; i < MAX_VLANS; i++) {
+
+ for (i = 0; i < MAX_VLANS; i++)
state->vlan_ports[i] = 0x0;
- }
if (state->vlan_enabled) {
- // updates other fields only based off vlan_ports and add_tag fields.
+ // Updates other fields only based off vlan_ports and add_tag fields.
// Note that by default, no ports are in any vlans.
correct_vlan_state(state);
}
- // ensure sane defaults?
+ // Ensure sane defaults?
return update_state(state);
}
state->add_tag &= (~bitmask);
}
}
- /*
- // no primary vlan id support in swconfig?
- // primary vlan will be set to the first non-zero vlan a port is a member of.
- for (i = 0; i< state->regs->NUM_PORTS; i++) {
- if (vlan_config->pvid & (1<<i)) {
- state->ports[i].vlan_tag = nr;
- }
- }
- */
correct_vlan_state(state);
err = update_state(state);
if (err < 0)
return err;
- if (REG_SUPP(state->regs->MII_REGISTER_EN)){
+ if (REG_SUPP(state->regs->MII_REGISTER_EN)) {
int val = getPhy(state, state->regs->MII_REGISTER_EN);
if (val < 0) {
return val;
return 0;
}
-static int ip175c_reset(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
+static int ip175c_reset(struct switch_dev *dev)
{
struct ip175c_state *state = dev->priv;
int i, err;
return err;
err = getPhy(state, state->regs->RESET_REG);
- /* data sheet specifies reset period is 2 msec
- (don't see any mention of the 2ms delay in the IP178C spec, only
- in IP175C, but it can't hurt.) */
+ /*
+ * Data sheet specifies reset period to be 2 msec.
+ * (I don't see any mention of the 2ms delay in the IP178C spec, only
+ * in IP175C, but it can't hurt.)
+ */
mdelay(2);
}
}
/* reset switch ports */
- for (i = 0; i < 5; i++) {
- err = state->mii_bus->write(state->mii_bus, i,
- MII_BMCR, BMCR_RESET);
+ for (i = 0; i < state->regs->NUM_PORTS-1; i++) {
+ err = ip_phy_write(state, i, MII_BMCR, BMCR_RESET);
if (err < 0)
return err;
}
return 0;
}
-/*! get the current register number */
static int ip175c_get_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
return 0;
}
-/*! set a new register address for low level access to registers */
static int ip175c_set_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
return err;
}
-
-/* low level /proc procedures */
-
-/*! get the current phy address */
+/** Get the current phy address */
static int ip175c_get_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
return 0;
}
-/*! set a new phy address for low level access to registers */
+/** Set a new phy address for low level access to registers */
static int ip175c_set_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
return 0;
}
-/*! get the current register number */
+/** Get the current register number */
static int ip175c_get_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
return 0;
}
-/*! set a new register address for low level access to registers */
+/** Set a new register address for low level access to registers */
static int ip175c_set_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
return 0;
}
-/*! get the register content of state->proc_mii */
+/** Get the register content of state->proc_mii */
static int ip175c_get_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
retval = getPhy(state, state->proc_mii);
if (retval < 0) {
- state->proc_errno = retval;
return retval;
} else {
- state->proc_errno = 0;
val->value.i = retval;
return 0;
}
}
-/*! write a value to the register defined by phy/reg above */
+/** Write a value to the register defined by phy/reg above */
static int ip175c_set_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
- int myval;
+ int myval, err = 0;
myval = val->value.i;
if (myval <= 0xffff && myval >= 0 && REG_SUPP(state->proc_mii)) {
- state->proc_errno = setPhy(state, state->proc_mii, (u16)myval);
- } else {
- state->proc_errno = -EINVAL;
+ err = setPhy(state, state->proc_mii, (u16)myval);
}
- return state->proc_errno;
-}
-
-/*! get the errno of the last read/write of "val" */
-static int ip175c_get_errno(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
-{
- struct ip175c_state *state = dev->priv;
- val->value.i = state->proc_errno;
- return 0;
+ return err;
}
static int ip175c_read_name(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
- val->value.s = state->regs->NAME; // just a const pointer, won't be freed by swconfig.
+ val->value.s = state->regs->NAME; // Just a const pointer, won't be freed by swconfig.
return 0;
}
-
static int ip175c_set_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
- int nr = val->port_vlan;
struct ip175c_state *state = dev->priv;
- struct phy_device *phy;
+ int nr = val->port_vlan;
int ctrl;
int autoneg;
int speed;
speed = 1;
}
- if (nr == state->regs->CPU_PORT) {
- return -EINVAL; // can't set speed for cpu port!
- }
+ /* Can't set speed for cpu port */
+ if (nr == state->regs->CPU_PORT)
+ return -EINVAL;
if (nr >= dev->ports || nr < 0)
return -EINVAL;
- phy = state->ports[nr].phy;
- if (!phy)
- return -EINVAL;
- ctrl = phy_read(phy, 0);
+ ctrl = ip_phy_read(state, nr, 0);
if (ctrl < 0)
return -EIO;
ctrl |= (autoneg<<12);
ctrl |= (speed<<13);
- return phy_write(phy, 0, ctrl);
+ return ip_phy_write(state, nr, 0, ctrl);
}
static int ip175c_get_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
- int nr = val->port_vlan;
struct ip175c_state *state = dev->priv;
- struct phy_device *phy;
+ int nr = val->port_vlan;
int speed, status;
if (nr == state->regs->CPU_PORT) {
if (nr >= dev->ports || nr < 0)
return -EINVAL;
- phy = state->ports[nr].phy;
- if (!phy)
- return -EINVAL;
- status = phy_read(phy, 1);
- speed = phy_read(phy, 18);
+ status = ip_phy_read(state, nr, 1);
+ speed = ip_phy_read(state, nr, 18);
if (status < 0 || speed < 0)
return -EIO;
return 0;
}
-
static int ip175c_get_port_status(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
- int nr = val->port_vlan;
struct ip175c_state *state = dev->priv;
- struct phy_device *phy;
int ctrl, speed, status;
+ int nr = val->port_vlan;
int len;
char *buf = state->buf; // fixed-length at 80.
if (nr >= dev->ports || nr < 0)
return -EINVAL;
- phy = state->ports[nr].phy;
- if (!phy)
- return -EINVAL;
- ctrl = phy_read(phy, 0);
- status = phy_read(phy, 1);
- speed = phy_read(phy, 18);
+ ctrl = ip_phy_read(state, nr, 0);
+ status = ip_phy_read(state, nr, 1);
+ speed = ip_phy_read(state, nr, 18);
if (ctrl < 0 || status < 0 || speed < 0)
return -EIO;
return 0;
}
+static int ip175c_get_pvid(struct switch_dev *dev, int port, int *val)
+{
+ struct ip175c_state *state = dev->priv;
+
+ *val = state->ports[port].pvid;
+ return 0;
+}
+
+static int ip175c_set_pvid(struct switch_dev *dev, int port, int val)
+{
+ struct ip175c_state *state = dev->priv;
+
+ state->ports[port].pvid = val;
+
+ if (!REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[port]))
+ return 0;
+
+ return setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[port], val);
+}
+
+
enum Ports {
IP175C_PORT_STATUS,
IP175C_PORT_LINK,
IP175C_PORT_TAGGED,
+ IP175C_PORT_PVID,
};
enum Globals {
- IP175C_RESET,
IP175C_ENABLE_VLAN,
IP175C_GET_NAME,
IP175C_REGISTER_PHY,
};
static const struct switch_attr ip175c_global[] = {
- [IP175C_RESET] = {
- .id = IP175C_RESET,
- .type = SWITCH_TYPE_NOVAL,
- .name = "reset",
- .get = NULL,
- .description = "Resets the switch but does not clear vlan configuration",
- .set = ip175c_reset,
- },
[IP175C_ENABLE_VLAN] = {
.id = IP175C_ENABLE_VLAN,
.type = SWITCH_TYPE_INT,
[IP175C_REGISTER_PHY] = {
.id = IP175C_REGISTER_PHY,
.type = SWITCH_TYPE_INT,
- .description = "Direct register access: set phy (0-4, or 29,30,31)",
+ .description = "Direct register access: set PHY (0-4, or 29,30,31)",
.name = "phy",
.get = ip175c_get_phy,
.set = ip175c_set_phy,
[IP175C_REGISTER_MII] = {
.id = IP175C_REGISTER_MII,
.type = SWITCH_TYPE_INT,
- .description = "Direct register access: set mii number (0-31)",
+ .description = "Direct register access: set MII register number (0-31)",
.name = "reg",
.get = ip175c_get_reg,
.set = ip175c_set_reg,
.get = ip175c_get_val,
.set = ip175c_set_val,
},
- [IP175C_REGISTER_ERRNO] = {
- .id = IP175C_REGISTER_ERRNO,
- .type = SWITCH_TYPE_INT,
- .description = "Direct register access: returns last read or write error",
- .name = "errno",
- .get = ip175c_get_errno,
- .set = NULL,
- },
-
};
static const struct switch_attr ip175c_vlan[] = {
struct switch_dev *dev;
int err;
- /* we only attach to PHY 0, but use all available PHYs */
+ /* We only attach to PHY 0, but use all available PHYs */
if (pdev->addr != 0)
return -ENODEV;
dev->attr_vlan.attr = ip175c_vlan;
dev->attr_vlan.n_attr = ARRAY_SIZE(ip175c_vlan);
+ dev->get_port_pvid = ip175c_get_pvid;
+ dev->set_port_pvid = ip175c_set_pvid;
dev->get_vlan_ports = ip175c_get_ports;
dev->set_vlan_ports = ip175c_set_ports;
dev->apply_config = ip175c_apply;
+ dev->reset_switch = ip175c_reset;
dev->priv = state;
pdev->priv = state;
if (err < 0)
return err;
- ip175c_reset(&state->dev, NULL, NULL);
+ ip175c_reset(&state->dev);
state->registered = true;
netif_carrier_on(pdev->attached_dev);
.driver = { .owner = THIS_MODULE },
};
+static struct phy_driver ip175a_driver = {
+ .name = "IC+ IP175A",
+ .phy_id = 0x02430c50,
+ .phy_id_mask = 0x0ffffff0,
+ .features = PHY_BASIC_FEATURES,
+ .probe = ip175c_probe,
+ .remove = ip175c_remove,
+ .config_init = ip175c_config_init,
+ .config_aneg = ip175c_config_aneg,
+ .read_status = ip175c_read_status,
+ .driver = { .owner = THIS_MODULE },
+};
+
int __init ip175c_init(void)
{
+ int ret;
+
+ ret = phy_driver_register(&ip175a_driver);
+ if (ret < 0)
+ return ret;
+
return phy_driver_register(&ip175c_driver);
}
void __exit ip175c_exit(void)
{
phy_driver_unregister(&ip175c_driver);
+ phy_driver_unregister(&ip175a_driver);
}
MODULE_AUTHOR("Patrick Horn <patrick.horn@gmail.com>");
module_init(ip175c_init);
module_exit(ip175c_exit);
-
projects / openwrt.git / blobdiff