bitnum SIMPLE_VLAN_REGISTERS; // 175C has two vlans per register but 178C has only one.
// Pointers to functions which manipulate hardware state
- int (*get_flags)(struct ip175c_state *state);
- int (*get_state)(struct ip175c_state *state);
int (*update_state)(struct ip175c_state *state);
int (*set_vlan_mode)(struct ip175c_state *state);
int (*reset)(struct ip175c_state *state);
};
-static int ip175c_get_flags(struct ip175c_state *state);
-static int ip175c_get_state(struct ip175c_state *state);
static int ip175c_update_state(struct ip175c_state *state);
static int ip175c_set_vlan_mode(struct ip175c_state *state);
static int ip175c_do_reset(struct ip175c_state *state);
.MII_REGISTER_EN = NOTSUPPORTED,
- .get_flags = ip175c_get_flags,
- .get_state = ip175c_get_state,
.update_state = ip175c_update_state,
.set_vlan_mode = ip175c_set_vlan_mode,
.reset = ip175c_do_reset,
.MII_REGISTER_EN = NOTSUPPORTED,
- .get_flags = ip175c_get_flags,
- .get_state = ip175c_get_state,
.update_state = ip175c_update_state,
.set_vlan_mode = ip175c_set_vlan_mode,
.reset = ip175c_do_reset,
.MII_REGISTER_EN = {0, 18},
.MII_REGISTER_EN_BIT = 7,
- .get_flags = ip175c_get_flags,
- .get_state = ip175c_get_state,
.update_state = ip175c_update_state,
.set_vlan_mode = ip175c_set_vlan_mode,
.reset = ip175c_do_reset,
};
+static int ip175d_update_state(struct ip175c_state *state);
+static int ip175d_set_vlan_mode(struct ip175c_state *state);
+static int ip175d_reset(struct ip175c_state *state);
+
+static const struct register_mappings IP175D = {
+ .NAME = "IP175D",
+ .MODEL_NO = 0x18,
+
+ // The IP175D has a completely different interface, so we leave most
+ // of the registers undefined and switch to different code paths.
+
+ .VLAN_DEFAULT_TAG_REG = {
+ NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,
+ NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,
+ },
+
+ .ADD_TAG_REG = NOTSUPPORTED,
+ .REMOVE_TAG_REG = NOTSUPPORTED,
+
+ .SIMPLE_VLAN_REGISTERS = 0,
+
+ .VLAN_LOOKUP_REG = NOTSUPPORTED,
+ .VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
+ .TAG_VLAN_MASK_REG = NOTSUPPORTED,
+
+ .RESET_VAL = 0x175D,
+ .RESET_REG = {20,2},
+ .MODE_REG = NOTSUPPORTED,
+
+ .ROUTER_CONTROL_REG = NOTSUPPORTED,
+ .ROUTER_EN_BIT = -1,
+ .NUMLAN_GROUPS_BIT = -1,
+
+ .VLAN_CONTROL_REG = NOTSUPPORTED,
+ .TAG_VLAN_BIT = -1,
+
+ .NUM_PORTS = 6,
+ .CPU_PORT = 5,
+
+ .MII_REGISTER_EN = NOTSUPPORTED,
+
+ .update_state = ip175d_update_state,
+ .set_vlan_mode = ip175d_set_vlan_mode,
+ .reset = ip175d_reset,
+};
+
struct ip175c_state {
struct switch_dev dev;
struct mii_bus *mii_bus;
chip_no = ip_phy_read(state, 20, 0);
pr_debug("IP175C: Chip ID register reads %04x\n", chip_no);
if (chip_no == 0x175d) {
- state->regs = &IP175C;
+ state->regs = &IP175D;
} else {
state->regs = &IP175C;
}
return 0;
}
-/** Get only the vlan and router flags on the router **/
-static int ip175c_get_flags(struct ip175c_state *state)
-{
- int val;
-
- state->router_mode = 0;
- state->vlan_enabled = -1; // hack
- state->num_vlans = 0;
-
- if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
- return 0; // not an error if it doesn't support enable vlan.
- }
-
- val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
- if (val < 0) {
- return val;
- }
- if (state->regs->ROUTER_EN_BIT >= 0)
- state->router_mode = ((val>>state->regs->ROUTER_EN_BIT) & 1);
-
- if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
- state->num_vlans = (val >> state->regs->NUMLAN_GROUPS_BIT);
- state->num_vlans &= (state->regs->NUMLAN_GROUPS_MAX-1);
- state->num_vlans+=1; // does not include WAN.
- }
-
- val = getPhy(state, state->regs->VLAN_CONTROL_REG);
- if (val < 0) {
- return 0;
- }
- if (state->regs->TAG_VLAN_BIT >= 0)
- state->vlan_enabled = ((val>>state->regs->TAG_VLAN_BIT) & 1);
-
- return 0;
-}
-
-/** Get all state variables for VLAN mappings and port-based tagging **/
-static int ip175c_get_state(struct ip175c_state *state)
-{
- int i, j;
- int ret;
-
- ret = ip175c_get_flags(state);
- if (ret < 0) {
- return ret;
- }
-
- GET_PORT_BITS(state, state->remove_tag,
- state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
- GET_PORT_BITS(state, state->add_tag,
- state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
-
- if (state->vlan_enabled == -1) {
- // not sure how to get this...
- state->vlan_enabled = (state->remove_tag || state->add_tag);
- }
-
- if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
- for (j=0; j<MAX_PORTS; j++) {
- state->ports[j].shareports = 0; // initialize them in case.
- }
- for (j=0; j<state->regs->NUM_PORTS; j++) {
- reg addr;
- const bitnum *bit_lookup = (j%2==0)?
- state->regs->VLAN_LOOKUP_EVEN_BIT:
- state->regs->VLAN_LOOKUP_ODD_BIT;
- addr = state->regs->VLAN_LOOKUP_REG;
- if (state->regs->SIMPLE_VLAN_REGISTERS) {
- addr.m += j;
- } else {
- switch (j) {
- case 0:
- case 1:
- break;
- case 2:
- case 3:
- addr.m+=1;
- break;
- case 4:
- addr.m+=2;
- break;
- case 5:
- addr = state->regs->VLAN_LOOKUP_REG_5;
- break;
- }
- }
-
- if (REG_SUPP(addr)) {
- GET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
- }
- }
- } else {
- for (j=0; j<MAX_PORTS; j++) {
- state->ports[j].shareports = 0xff;
- }
- }
-
- for (i=0; i<MAX_PORTS; i++) {
- if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
- int val = getPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i]);
- if (val < 0) {
- return val;
- }
- state->ports[i].pvid = val;
- } else {
- state->ports[i].pvid = 0;
- }
- }
-
- if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
- for (j=0; j<MAX_VLANS; j++) {
- reg addr = state->regs->TAG_VLAN_MASK_REG;
- const bitnum *bit_lookup = (j%2==0)?
- state->regs->TAG_VLAN_MASK_EVEN_BIT:
- state->regs->TAG_VLAN_MASK_ODD_BIT;
- if (state->regs->SIMPLE_VLAN_REGISTERS) {
- addr.m += j;
- } else {
- addr.m += j/2;
- }
- GET_PORT_BITS(state, state->vlans[j].ports, addr, bit_lookup);
- }
- } else {
- for (j=0; j<MAX_VLANS; j++) {
- state->vlans[j].ports = 0;
- for (i=0; i<state->regs->NUM_PORTS; i++) {
- if ((state->ports[i].pvid == j) ||
- (state->ports[i].pvid == 0)) {
- state->vlans[j].ports |= (1<<i);
- }
- }
- }
- }
-
- return 0;
-}
+/*** Low-level functions for the older models ***/
/** Only set vlan and router flags in the switch **/
static int ip175c_set_flags(struct ip175c_state *state)
state->regs->VLAN_LOOKUP_EVEN_BIT:
state->regs->VLAN_LOOKUP_ODD_BIT;
- // duplicate code -- sorry
addr = state->regs->VLAN_LOOKUP_REG;
if (state->regs->SIMPLE_VLAN_REGISTERS) {
addr.m += j;
return err;
}
- return 0;
+ return ip175c_update_state(state);
}
+/*** Low-level functions for IP175D ***/
+
+static int ip175d_update_state(struct ip175c_state *state)
+{
+ unsigned int filter_mask = 0;
+ unsigned int ports[16], add[16], rem[16];
+ int i, j;
+ int err = 0;
+
+ for (i = 0; i < 16; i++) {
+ ports[i] = 0;
+ add[i] = 0;
+ rem[i] = 0;
+ if (!state->vlan_enabled) {
+ err |= ip_phy_write(state, 22, 14+i, i+1); // default tags
+ ports[i] = 0x3f;
+ continue;
+ }
+ if (!state->vlans[i].tag) {
+ // Reset the filter
+ err |= ip_phy_write(state, 22, 14+i, 0); // tag
+ continue;
+ }
+ filter_mask |= 1 << i;
+ err |= ip_phy_write(state, 22, 14+i, state->vlans[i].tag);
+ ports[i] = state->vlans[i].ports;
+ for (j = 0; j < 6; j++) {
+ if (ports[i] & (1 << j)) {
+ if (state->add_tag & (1 << j))
+ add[i] |= 1 << j;
+ if (state->remove_tag & (1 << j))
+ rem[i] |= 1 << j;
+ }
+ }
+ }
+
+ // Port masks, tag adds and removals
+ for (i = 0; i < 8; i++) {
+ err |= ip_phy_write(state, 23, i, ports[2*i] | (ports[2*i+1] << 8));
+ err |= ip_phy_write(state, 23, 8+i, add[2*i] | (add[2*i+1] << 8));
+ err |= ip_phy_write(state, 23, 16+i, rem[2*i] | (rem[2*i+1] << 8));
+ }
+ err |= ip_phy_write(state, 22, 10, filter_mask);
+
+ // Default VLAN tag for each port
+ for (i = 0; i < 6; i++)
+ err |= ip_phy_write(state, 22, 4+i, state->vlans[state->ports[i].pvid].tag);
+
+ return (err ? -EIO : 0);
+}
+
+static int ip175d_set_vlan_mode(struct ip175c_state *state)
+{
+ int i;
+ int err = 0;
+
+ if (state->vlan_enabled) {
+ // VLAN classification rules: tag-based VLANs, use VID to classify,
+ // drop packets that cannot be classified.
+ err |= ip_phy_write_masked(state, 22, 0, 0x3fff, 0x003f);
+
+ // Ingress rules: CFI=1 dropped, null VID is untagged, VID=1 passed,
+ // VID=0xfff discarded, admin both tagged and untagged, ingress
+ // filters enabled.
+ err |= ip_phy_write_masked(state, 22, 1, 0x0fff, 0x0c3f);
+
+ // Egress rules: IGMP processing off, keep VLAN header off
+ err |= ip_phy_write_masked(state, 22, 2, 0x0fff, 0x0000);
+ } else {
+ // VLAN classification rules: everything off & clear table
+ err |= ip_phy_write_masked(state, 22, 0, 0xbfff, 0x8000);
+
+ // Ingress and egress rules: set to defaults
+ err |= ip_phy_write_masked(state, 22, 1, 0x0fff, 0x0c3f);
+ err |= ip_phy_write_masked(state, 22, 2, 0x0fff, 0x0000);
+ }
+
+ // Reset default VLAN for each port to 0
+ for (i = 0; i < 6; i++)
+ state->ports[i].pvid = 0;
+
+ err |= ip175d_update_state(state);
+
+ return (err ? -EIO : 0);
+}
+
+static int ip175d_reset(struct ip175c_state *state)
+{
+ int err = 0;
+
+ // Disable the special tagging mode
+ err |= ip_phy_write_masked(state, 21, 22, 0x0003, 0x0000);
+
+ // Set 802.1q protocol type
+ err |= ip_phy_write(state, 22, 3, 0x8100);
+
+ state->vlan_enabled = 0;
+ err |= ip175d_set_vlan_mode(state);
+
+ return (err ? -EIO : 0);
+}
+
+/*** High-level functions ***/
+
static int ip175c_get_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
- int err;
- err = state->regs->get_state(state); // May be set in get_state.
- if (err < 0)
- return err;
val->value.i = state->vlan_enabled;
return 0;
}
static int ip175c_set_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
- int err;
int enable;
- err = state->regs->get_state(state);
- if (err < 0)
- return err;
enable = val->value.i;
-
if (state->vlan_enabled == enable) {
// Do not change any state.
return 0;
static int ip175c_get_ports(struct switch_dev *dev, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
- int err;
int b;
int ind;
unsigned int ports;
if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
return -EINVAL;
- err = state->regs->get_state(state);
- if (err<0)
- return err;
-
ports = state->vlans[val->port_vlan].ports;
b = 0;
ind = 0;
{
struct ip175c_state *state = dev->priv;
int i;
- int err;
if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
return -EINVAL;
- err = state->regs->get_state(state);
- if (err < 0)
- return err;
-
state->vlans[val->port_vlan].ports = 0;
for (i = 0; i < val->len; i++) {
unsigned int bitmask = (1<<val->value.ports[i].id);
static int ip175c_apply(struct switch_dev *dev)
{
struct ip175c_state *state = dev->priv;
- int err;
-
- err = state->regs->get_flags(state);
- if (err < 0)
- return err;
if (REG_SUPP(state->regs->MII_REGISTER_EN)) {
int val = getPhy(state, state->regs->MII_REGISTER_EN);
struct ip175c_state *state = dev->priv;
int i, err;
- err = state->regs->get_flags(state);
- if (err < 0)
- return err;
-
if (REG_SUPP(state->regs->RESET_REG)) {
err = setPhy(state, state->regs->RESET_REG, state->regs->RESET_VAL);
if (err < 0)
return err;
}
+ state->router_mode = 0;
+ state->vlan_enabled = 0;
ip175c_reset_vlan_config(state);
return state->regs->reset(state);
static int ip175c_get_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
- int err;
-
- err = state->regs->get_state(state);
- if (err < 0)
- return err;
if (state->add_tag & (1<<val->port_vlan)) {
if (state->remove_tag & (1<<val->port_vlan))
static int ip175c_set_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct ip175c_state *state = dev->priv;
- int err;
-
- err = state->regs->get_state(state);
- if (err < 0)
- return err;
state->add_tag &= ~(1<<val->port_vlan);
state->remove_tag &= ~(1<<val->port_vlan);
static int ip175c_set_pvid(struct switch_dev *dev, int port, int val)
{
struct ip175c_state *state = dev->priv;
- int err;
if (val < 0 || val >= MAX_VLANS)
return -EINVAL;
- err = state->regs->get_state(state);
- if (err < 0)
- return err;
-
state->ports[port].pvid = val;
-
return state->regs->update_state(state);
}
projects / openwrt / openwrt.git / blobdiff