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	This patch introduces seperation between low-level and high-level parts
of the driver. The low-level functions are now called via pointers stored
in struct ip175c_regs.
The only functional changes are:
  o  correct_vlan_state() is now called as a part of every update_state().
  o  The order of setting of MODE_REG and resetting switch ports
     has changed. (These are independent actions, so it should not matter.)
  o  ip175c_set_tagged() sets the tags via update_state() instead of writing
     directly to the registers.
  o  The same for ip175c_set_pvid().
The only gaps in this abstraction are operations on ports (get_port_speed
and friends), which access PHY registers directly.
Signed-off-by: Martin Mares <mj@ucw.cz>
Signed-off-by: Patrick Horn <patrick.horn@gmail.com>
SVN-Revision: 21714
		
	
			
		
			
				
	
	
		
			1366 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1366 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * swconfig-ip175c.c: Swconfig configuration for IC+ IP175C switch
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 *
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 * Copyright (C) 2008 Patrick Horn <patrick.horn@gmail.com>
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 * Copyright (C) 2008 Martin Mares <mj@ucw.cz>
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 * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
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 * GNU General Public License for more details.
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 */
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/skbuff.h>
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#include <linux/mii.h>
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#include <linux/phy.h>
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#include <linux/delay.h>
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#include <linux/switch.h>
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#define MAX_VLANS 16
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#define MAX_PORTS 9
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#undef DUMP_MII_IO
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typedef struct ip175c_reg {
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	u16 p;			// phy
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	u16 m;			// mii
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} reg;
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typedef char bitnum;
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#define NOTSUPPORTED {-1,-1}
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#define REG_SUPP(x) (((x).m != ((u16)-1)) && ((x).p != (u16)-1))
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struct ip175c_state;
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/*********** CONSTANTS ***********/
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struct register_mappings {
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	char *NAME;
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	u16 MODEL_NO;			// Compare to bits 4-9 of MII register 0,3.
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	bitnum NUM_PORTS;
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	bitnum CPU_PORT;
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/* The default VLAN for each port.
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	 Default: 0x0001 for Ports 0,1,2,3
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		  0x0002 for Ports 4,5 */
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	reg VLAN_DEFAULT_TAG_REG[MAX_PORTS];
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/* These ports are tagged.
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	 Default: 0x00 */
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	reg ADD_TAG_REG;
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	reg REMOVE_TAG_REG;
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	bitnum ADD_TAG_BIT[MAX_PORTS];
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/* These ports are untagged.
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	 Default: 0x00 (i.e. do not alter any VLAN tags...)
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	 Maybe set to 0 if user disables VLANs. */
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	bitnum REMOVE_TAG_BIT[MAX_PORTS];
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/* Port M and Port N are on the same VLAN.
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	 Default: All ports on all VLANs. */
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// Use register {29, 19+N/2}
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	reg VLAN_LOOKUP_REG;
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// Port 5 uses register {30, 18} but same as odd bits.
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	reg VLAN_LOOKUP_REG_5;		// in a different register on IP175C.
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	bitnum VLAN_LOOKUP_EVEN_BIT[MAX_PORTS];
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	bitnum VLAN_LOOKUP_ODD_BIT[MAX_PORTS];
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/* This VLAN corresponds to which ports.
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	 Default: 0x2f,0x30,0x3f,0x3f... */
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	reg TAG_VLAN_MASK_REG;
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	bitnum TAG_VLAN_MASK_EVEN_BIT[MAX_PORTS];
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	bitnum TAG_VLAN_MASK_ODD_BIT[MAX_PORTS];
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	int RESET_VAL;
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	reg RESET_REG;
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	reg MODE_REG;
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	int MODE_VAL;
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/* General flags */
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	reg ROUTER_CONTROL_REG;
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	reg VLAN_CONTROL_REG;
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	bitnum TAG_VLAN_BIT;
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	bitnum ROUTER_EN_BIT;
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	bitnum NUMLAN_GROUPS_MAX;
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	bitnum NUMLAN_GROUPS_BIT;
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	reg MII_REGISTER_EN;
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	bitnum MII_REGISTER_EN_BIT;
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	// set to 1 for 178C, 0 for 175C.
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	bitnum SIMPLE_VLAN_REGISTERS;	// 175C has two vlans per register but 178C has only one.
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	// Pointers to functions which manipulate hardware state
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	int (*get_flags)(struct ip175c_state *state);
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	int (*get_state)(struct ip175c_state *state);
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	int (*update_state)(struct ip175c_state *state);
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	int (*set_vlan_mode)(struct ip175c_state *state);
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	int (*reset)(struct ip175c_state *state);
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};
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static int ip175c_get_flags(struct ip175c_state *state);
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static int ip175c_get_state(struct ip175c_state *state);
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static int ip175c_update_state(struct ip175c_state *state);
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static int ip175c_set_vlan_mode(struct ip175c_state *state);
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static int ip175c_do_reset(struct ip175c_state *state);
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static const struct register_mappings IP178C = {
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	.NAME = "IP178C",
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	.MODEL_NO = 0x18,
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	.VLAN_DEFAULT_TAG_REG = {
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		{30,3},{30,4},{30,5},{30,6},{30,7},{30,8},
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		{30,9},{30,10},{30,11},
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	},
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	.ADD_TAG_REG = {30,12},
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	.ADD_TAG_BIT = {0,1,2,3,4,5,6,7,8},
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	.REMOVE_TAG_REG = {30,13},
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	.REMOVE_TAG_BIT = {4,5,6,7,8,9,10,11,12},
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	.SIMPLE_VLAN_REGISTERS = 1,
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	.VLAN_LOOKUP_REG = {31,0},// +N
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	.VLAN_LOOKUP_REG_5 = NOTSUPPORTED, // not used with SIMPLE_VLAN_REGISTERS
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	.VLAN_LOOKUP_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
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	.VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,5,6,7,8},
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	.TAG_VLAN_MASK_REG = {30,14}, // +N
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	.TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
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	.TAG_VLAN_MASK_ODD_BIT = {0,1,2,3,4,5,6,7,8},
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	.RESET_VAL = 0x55AA,
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	.RESET_REG = {30,0},
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	.MODE_VAL = 0,
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	.MODE_REG = NOTSUPPORTED,
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	.ROUTER_CONTROL_REG = {30,30},
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	.ROUTER_EN_BIT = 11,
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	.NUMLAN_GROUPS_MAX = 8,
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	.NUMLAN_GROUPS_BIT = 8, // {0-2}
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	.VLAN_CONTROL_REG = {30,13},
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	.TAG_VLAN_BIT = 3,
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	.CPU_PORT = 8,
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	.NUM_PORTS = 9,
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	.MII_REGISTER_EN = NOTSUPPORTED,
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	.get_flags = ip175c_get_flags,
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	.get_state = ip175c_get_state,
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	.update_state = ip175c_update_state,
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	.set_vlan_mode = ip175c_set_vlan_mode,
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	.reset = ip175c_do_reset,
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};
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static const struct register_mappings IP175C = {
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	.NAME = "IP175C",
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	.MODEL_NO = 0x18,
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	.VLAN_DEFAULT_TAG_REG = {
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		{29,24},{29,25},{29,26},{29,27},{29,28},{29,30},
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		NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
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	},
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	.ADD_TAG_REG = {29,23},
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	.REMOVE_TAG_REG = {29,23},
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	.ADD_TAG_BIT = {11,12,13,14,15,1,-1,-1,-1},
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	.REMOVE_TAG_BIT = {6,7,8,9,10,0,-1,-1,-1},
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	.SIMPLE_VLAN_REGISTERS = 0,
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	.VLAN_LOOKUP_REG = {29,19},// +N/2
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	.VLAN_LOOKUP_REG_5 = {30,18},
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	.VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,15,-1,-1,-1},
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	.VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,7,-1,-1,-1},
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	.TAG_VLAN_MASK_REG = {30,1}, // +N/2
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	.TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,-1,-1,-1},
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	.TAG_VLAN_MASK_ODD_BIT = {8,9,10,11,12,13,-1,-1,-1},
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	.RESET_VAL = 0x175C,
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	.RESET_REG = {30,0},
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	.MODE_VAL = 0x175C,
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	.MODE_REG = {29,31},
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	.ROUTER_CONTROL_REG = {30,9},
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	.ROUTER_EN_BIT = 3,
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	.NUMLAN_GROUPS_MAX = 8,
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	.NUMLAN_GROUPS_BIT = 0, // {0-2}
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	.VLAN_CONTROL_REG = {30,9},
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	.TAG_VLAN_BIT = 7,
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	.NUM_PORTS = 6,
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	.CPU_PORT = 5,
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	.MII_REGISTER_EN = NOTSUPPORTED,
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	.get_flags = ip175c_get_flags,
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	.get_state = ip175c_get_state,
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	.update_state = ip175c_update_state,
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	.set_vlan_mode = ip175c_set_vlan_mode,
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	.reset = ip175c_do_reset,
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};
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static const struct register_mappings IP175A = {
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	.NAME = "IP175A",
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	.MODEL_NO = 0x05,
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	.VLAN_DEFAULT_TAG_REG = {
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		{0,24},{0,25},{0,26},{0,27},{0,28},NOTSUPPORTED,
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		NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
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	},
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	.ADD_TAG_REG = {0,23},
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	.REMOVE_TAG_REG = {0,23},
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	.ADD_TAG_BIT = {11,12,13,14,15,-1,-1,-1,-1},
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	.REMOVE_TAG_BIT = {6,7,8,9,10,-1,-1,-1,-1},
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	.SIMPLE_VLAN_REGISTERS = 0,
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	// Only programmable via EEPROM
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	.VLAN_LOOKUP_REG = NOTSUPPORTED,// +N/2
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	.VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
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	.VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,-1,-1,-1,-1},
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	.VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,-1,-1,-1,-1},
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	.TAG_VLAN_MASK_REG = NOTSUPPORTED, // +N/2,
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	.TAG_VLAN_MASK_EVEN_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
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	.TAG_VLAN_MASK_ODD_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
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	.RESET_VAL = -1,
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	.RESET_REG = NOTSUPPORTED,
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	.MODE_VAL = 0,
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	.MODE_REG = NOTSUPPORTED,
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	.ROUTER_CONTROL_REG = NOTSUPPORTED,
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	.VLAN_CONTROL_REG = NOTSUPPORTED,
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	.TAG_VLAN_BIT = -1,
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	.ROUTER_EN_BIT = -1,
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	.NUMLAN_GROUPS_MAX = -1,
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	.NUMLAN_GROUPS_BIT = -1, // {0-2}
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	.NUM_PORTS = 5,
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	.CPU_PORT = 4,
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	.MII_REGISTER_EN = {0, 18},
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	.MII_REGISTER_EN_BIT = 7,
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	.get_flags = ip175c_get_flags,
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	.get_state = ip175c_get_state,
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	.update_state = ip175c_update_state,
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	.set_vlan_mode = ip175c_set_vlan_mode,
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	.reset = ip175c_do_reset,
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};
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struct ip175c_state {
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	struct switch_dev dev;
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	struct mii_bus *mii_bus;
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	bool registered;
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	int router_mode;		// ROUTER_EN
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	int vlan_enabled;		// TAG_VLAN_EN
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	struct port_state {
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		u16 pvid;
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		unsigned int shareports;
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	} ports[MAX_PORTS];
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	unsigned int add_tag;
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	unsigned int remove_tag;
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	int num_vlans;
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	unsigned int vlan_ports[MAX_VLANS];
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	const struct register_mappings *regs;
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	reg proc_mii; 	// phy/reg for the low level register access via swconfig
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	char buf[80];
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};
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static int ip_phy_read(struct ip175c_state *state, int port, int reg)
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{
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	int val = mdiobus_read(state->mii_bus, port, reg);
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	if (val < 0)
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		pr_warning("IP175C: Unable to get MII register %d,%d: error %d\n", port, reg, -val);
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#ifdef DUMP_MII_IO
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	else
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		pr_debug("IP175C: Read MII(%d,%d) -> %04x\n", port, reg, val);
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#endif
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	return val;
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}
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static int ip_phy_write(struct ip175c_state *state, int port, int reg, u16 val)
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{
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	int err;
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#ifdef DUMP_MII_IO
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	pr_debug("IP175C: Write MII(%d,%d) <- %04x\n", port, reg, val);
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#endif
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	err = mdiobus_write(state->mii_bus, port, reg, val);
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	if (err < 0)
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		pr_warning("IP175C: Unable to write MII register %d,%d: error %d\n", port, reg, -err);
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	return err;
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}
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static int ip_phy_write_masked(struct ip175c_state *state, int port, int reg, unsigned int mask, unsigned int data)
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{
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	int val = ip_phy_read(state, port, reg);
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	if (val < 0)
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		return 0;
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	return ip_phy_write(state, port, reg, (val & ~mask) | data);
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}
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static int getPhy(struct ip175c_state *state, reg mii)
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{
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	if (!REG_SUPP(mii))
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		return -EFAULT;
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	return ip_phy_read(state, mii.p, mii.m);
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}
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static int setPhy(struct ip175c_state *state, reg mii, u16 value)
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{
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	int err;
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	if (!REG_SUPP(mii))
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		return -EFAULT;
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	err = ip_phy_write(state, mii.p, mii.m, value);
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	if (err < 0)
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		return err;
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	getPhy(state, mii);
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	return 0;
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}
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						|
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/**
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 * These two macros are to simplify the mapping of logical bits to the bits in hardware.
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 * NOTE: these macros will return if there is an error!
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 */
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#define GET_PORT_BITS(state, bits, addr, bit_lookup)		\
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	do {							\
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		int i, val = getPhy((state), (addr));		\
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		if (val < 0)					\
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			return val;				\
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		(bits) = 0;					\
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		for (i = 0; i < MAX_PORTS; i++) {		\
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			if ((bit_lookup)[i] == -1) continue;	\
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			if (val & (1<<(bit_lookup)[i]))		\
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				(bits) |= (1<<i);		\
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						|
		}						\
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						|
	} while (0)
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#define SET_PORT_BITS(state, bits, addr, bit_lookup)		\
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	do {							\
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						|
		int i, val = getPhy((state), (addr));		\
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						|
		if (val < 0)					\
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			return val;				\
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		for (i = 0; i < MAX_PORTS; i++) {		\
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			unsigned int newmask = ((bits)&(1<<i));	\
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			if ((bit_lookup)[i] == -1) continue;	\
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			val &= ~(1<<(bit_lookup)[i]);		\
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			val |= ((newmask>>i)<<(bit_lookup)[i]);	\
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		}						\
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		val = setPhy((state), (addr), val);		\
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		if (val < 0)					\
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			return val;				\
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	} while (0)
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						|
static int get_model(struct ip175c_state *state)
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{
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	reg oui_id_reg = {0, 2};
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						|
	int oui_id;
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						|
	reg model_no_reg = {0, 3};
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						|
	int model_no, model_no_orig;
 | 
						|
 | 
						|
	// 175 and 178 have the same oui ID.
 | 
						|
	reg oui_id_reg_178c = {5, 2}; // returns error on IP175C.
 | 
						|
	int is_178c = 0;
 | 
						|
 | 
						|
	oui_id = getPhy(state, oui_id_reg);
 | 
						|
	if (oui_id != 0x0243) {
 | 
						|
		// non
 | 
						|
		return -ENODEV; // Not a IC+ chip.
 | 
						|
	}
 | 
						|
	oui_id = getPhy(state, oui_id_reg_178c);
 | 
						|
	if (oui_id == 0x0243) {
 | 
						|
		is_178c = 1;
 | 
						|
	}
 | 
						|
 | 
						|
	model_no_orig = getPhy(state, model_no_reg);
 | 
						|
	if (model_no_orig < 0) {
 | 
						|
		return -ENODEV;
 | 
						|
	}
 | 
						|
	model_no = model_no_orig >> 4; // shift out revision number.
 | 
						|
	model_no &= 0x3f; // only take the model number (low 6 bits).
 | 
						|
	if (model_no == IP175A.MODEL_NO) {
 | 
						|
		state->regs = &IP175A;
 | 
						|
	} else if (model_no == IP175C.MODEL_NO) {
 | 
						|
		if (is_178c) {
 | 
						|
			state->regs = &IP178C;
 | 
						|
		} else {
 | 
						|
			state->regs = &IP175C;
 | 
						|
		}
 | 
						|
	} else {
 | 
						|
		printk(KERN_WARNING "ip175c: Found an unknown IC+ switch with model number %02Xh.\n", model_no_orig);
 | 
						|
		return -EPERM;
 | 
						|
	}
 | 
						|
	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->vlan_ports[j], addr, bit_lookup);
 | 
						|
		}
 | 
						|
	} else {
 | 
						|
		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].pvid == j) ||
 | 
						|
						(state->ports[i].pvid == 0)) {
 | 
						|
					state->vlan_ports[j] |= (1<<i);
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
/** Only set vlan and router flags in the switch **/
 | 
						|
static int ip175c_set_flags(struct ip175c_state *state)
 | 
						|
{
 | 
						|
	int val;
 | 
						|
 | 
						|
	if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
 | 
						|
	val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
 | 
						|
	if (val < 0) {
 | 
						|
		return val;
 | 
						|
	}
 | 
						|
	if (state->regs->ROUTER_EN_BIT >= 0) {
 | 
						|
		if (state->router_mode) {
 | 
						|
			val |= (1<<state->regs->ROUTER_EN_BIT);
 | 
						|
		} else {
 | 
						|
			val &= (~(1<<state->regs->ROUTER_EN_BIT));
 | 
						|
		}
 | 
						|
	}
 | 
						|
	if (state->regs->TAG_VLAN_BIT >= 0) {
 | 
						|
		if (state->vlan_enabled) {
 | 
						|
			val |= (1<<state->regs->TAG_VLAN_BIT);
 | 
						|
		} else {
 | 
						|
			val &= (~(1<<state->regs->TAG_VLAN_BIT));
 | 
						|
		}
 | 
						|
	}
 | 
						|
	if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
 | 
						|
		val &= (~((state->regs->NUMLAN_GROUPS_MAX-1)<<state->regs->NUMLAN_GROUPS_BIT));
 | 
						|
		if (state->num_vlans > state->regs->NUMLAN_GROUPS_MAX) {
 | 
						|
			val |= state->regs->NUMLAN_GROUPS_MAX << state->regs->NUMLAN_GROUPS_BIT;
 | 
						|
		} else if (state->num_vlans >= 1) {
 | 
						|
			val |= (state->num_vlans-1) << state->regs->NUMLAN_GROUPS_BIT;
 | 
						|
		}
 | 
						|
	}
 | 
						|
	return setPhy(state, state->regs->ROUTER_CONTROL_REG, val);
 | 
						|
}
 | 
						|
 | 
						|
/** Set all VLAN and port state.  Usually you should call "correct_vlan_state" first. **/
 | 
						|
static int ip175c_set_state(struct ip175c_state *state)
 | 
						|
{
 | 
						|
	int j;
 | 
						|
	int i;
 | 
						|
	SET_PORT_BITS(state, state->add_tag,
 | 
						|
				  state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
 | 
						|
	SET_PORT_BITS(state, state->remove_tag,
 | 
						|
				  state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
 | 
						|
 | 
						|
	if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
 | 
						|
		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;
 | 
						|
 | 
						|
			// duplicate code -- sorry
 | 
						|
			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;
 | 
						|
				default:
 | 
						|
					addr.m = -1; // shouldn't get here, but...
 | 
						|
					break;
 | 
						|
				}
 | 
						|
			}
 | 
						|
			//printf("shareports for %d is %02X\n",j,state->ports[j].shareports);
 | 
						|
			if (REG_SUPP(addr)) {
 | 
						|
				SET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
	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;
 | 
						|
			unsigned int vlan_mask;
 | 
						|
			if (state->regs->SIMPLE_VLAN_REGISTERS) {
 | 
						|
				addr.m += j;
 | 
						|
			} else {
 | 
						|
				addr.m += j/2;
 | 
						|
			}
 | 
						|
			vlan_mask = state->vlan_ports[j];
 | 
						|
			SET_PORT_BITS(state, vlan_mask, addr, bit_lookup);
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	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].pvid);
 | 
						|
			if (err < 0) {
 | 
						|
				return err;
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	return ip175c_set_flags(state);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 *  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 ip175c_correct_vlan_state(struct ip175c_state *state)
 | 
						|
{
 | 
						|
	int i, j;
 | 
						|
	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++) {
 | 
						|
		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)
 | 
						|
				state->ports[i].shareports |= state->vlan_ports[j];
 | 
						|
		}
 | 
						|
	}
 | 
						|
	state->remove_tag = ((~state->add_tag) & ((1<<state->regs->NUM_PORTS)-1));
 | 
						|
}
 | 
						|
 | 
						|
static int ip175c_update_state(struct ip175c_state *state)
 | 
						|
{
 | 
						|
	ip175c_correct_vlan_state(state);
 | 
						|
	return ip175c_set_state(state);
 | 
						|
}
 | 
						|
 | 
						|
static int ip175c_set_vlan_mode(struct ip175c_state *state)
 | 
						|
{
 | 
						|
	return ip175c_update_state(state);
 | 
						|
}
 | 
						|
 | 
						|
static int ip175c_do_reset(struct ip175c_state *state)
 | 
						|
{
 | 
						|
	int err;
 | 
						|
 | 
						|
	if (REG_SUPP(state->regs->MODE_REG)) {
 | 
						|
		err = setPhy(state, state->regs->MODE_REG, state->regs->MODE_VAL);
 | 
						|
		if (err < 0)
 | 
						|
			return err;
 | 
						|
		err = getPhy(state, state->regs->MODE_REG);
 | 
						|
		if (err < 0)
 | 
						|
			return err;
 | 
						|
	}
 | 
						|
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
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;
 | 
						|
	int i;
 | 
						|
 | 
						|
	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;
 | 
						|
	}
 | 
						|
	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_VLANS; i++)
 | 
						|
		state->vlan_ports[i] = 0x0;
 | 
						|
 | 
						|
	return state->regs->set_vlan_mode(state);
 | 
						|
}
 | 
						|
 | 
						|
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->vlan_ports[val->port_vlan];
 | 
						|
	b = 0;
 | 
						|
	ind = 0;
 | 
						|
	while (b < MAX_PORTS) {
 | 
						|
		if (ports&1) {
 | 
						|
			int istagged = ((state->add_tag >> b) & 1);
 | 
						|
			val->value.ports[ind].id = b;
 | 
						|
			val->value.ports[ind].flags = (istagged << SWITCH_PORT_FLAG_TAGGED);
 | 
						|
			ind++;
 | 
						|
		}
 | 
						|
		b++;
 | 
						|
		ports >>= 1;
 | 
						|
	}
 | 
						|
	val->len = ind;
 | 
						|
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static int ip175c_set_ports(struct switch_dev *dev, struct switch_val *val)
 | 
						|
{
 | 
						|
	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->vlan_ports[val->port_vlan] = 0;
 | 
						|
	for (i = 0; i < val->len; i++) {
 | 
						|
		int bitmask = (1<<val->value.ports[i].id);
 | 
						|
		state->vlan_ports[val->port_vlan] |= bitmask;
 | 
						|
		if (val->value.ports[i].flags & (1<<SWITCH_PORT_FLAG_TAGGED)) {
 | 
						|
			state->add_tag |= bitmask;
 | 
						|
		} else {
 | 
						|
			state->add_tag &= (~bitmask);
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	return state->regs->update_state(state);
 | 
						|
}
 | 
						|
 | 
						|
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);
 | 
						|
		if (val < 0) {
 | 
						|
			return val;
 | 
						|
		}
 | 
						|
		val |= (1<<state->regs->MII_REGISTER_EN_BIT);
 | 
						|
		return setPhy(state, state->regs->MII_REGISTER_EN, val);
 | 
						|
	}
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static int ip175c_reset(struct switch_dev *dev)
 | 
						|
{
 | 
						|
	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;
 | 
						|
		err = getPhy(state, state->regs->RESET_REG);
 | 
						|
 | 
						|
		/*
 | 
						|
		 *  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 < state->regs->NUM_PORTS-1; i++) {
 | 
						|
		err = ip_phy_write(state, i, MII_BMCR, BMCR_RESET);
 | 
						|
		if (err < 0)
 | 
						|
			return err;
 | 
						|
	}
 | 
						|
 | 
						|
	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))
 | 
						|
			val->value.i = 3; // shouldn't ever happen.
 | 
						|
		else
 | 
						|
			val->value.i = 1;
 | 
						|
	} else {
 | 
						|
		if (state->remove_tag & (1<<val->port_vlan))
 | 
						|
			val->value.i = 0;
 | 
						|
		else
 | 
						|
			val->value.i = 2;
 | 
						|
	}
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
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);
 | 
						|
 | 
						|
	if (val->value.i == 0)
 | 
						|
		state->remove_tag |= (1<<val->port_vlan);
 | 
						|
	if (val->value.i == 1)
 | 
						|
		state->add_tag |= (1<<val->port_vlan);
 | 
						|
 | 
						|
	return state->regs->update_state(state);
 | 
						|
}
 | 
						|
 | 
						|
/** 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;
 | 
						|
 | 
						|
	val->value.i = state->proc_mii.p;
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
/** 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;
 | 
						|
	int new_reg = val->value.i;
 | 
						|
 | 
						|
	if (new_reg < 0 || new_reg > 31)
 | 
						|
		state->proc_mii.p = (u16)-1;
 | 
						|
	else
 | 
						|
		state->proc_mii.p = (u16)new_reg;
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
/** 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;
 | 
						|
 | 
						|
	val->value.i = state->proc_mii.m;
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
/** 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;
 | 
						|
	int new_reg = val->value.i;
 | 
						|
 | 
						|
	if (new_reg < 0 || new_reg > 31)
 | 
						|
		state->proc_mii.m = (u16)-1;
 | 
						|
	else
 | 
						|
		state->proc_mii.m = (u16)new_reg;
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
/** 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;
 | 
						|
	int retval = -EINVAL;
 | 
						|
	if (REG_SUPP(state->proc_mii))
 | 
						|
		retval = getPhy(state, state->proc_mii);
 | 
						|
 | 
						|
	if (retval < 0) {
 | 
						|
		return retval;
 | 
						|
	} else {
 | 
						|
		val->value.i = retval;
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
/** 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, err = -EINVAL;
 | 
						|
 | 
						|
	myval = val->value.i;
 | 
						|
	if (myval <= 0xffff && myval >= 0 && REG_SUPP(state->proc_mii)) {
 | 
						|
		err = setPhy(state, state->proc_mii, (u16)myval);
 | 
						|
	}
 | 
						|
	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.
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static int ip175c_set_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 | 
						|
{
 | 
						|
	struct ip175c_state *state = dev->priv;
 | 
						|
	int nr = val->port_vlan;
 | 
						|
	int ctrl;
 | 
						|
	int autoneg;
 | 
						|
	int speed;
 | 
						|
	if (val->value.i == 100) {
 | 
						|
		speed = 1;
 | 
						|
		autoneg = 0;
 | 
						|
	} else if (val->value.i == 10) {
 | 
						|
		speed = 0;
 | 
						|
		autoneg = 0;
 | 
						|
	} else {
 | 
						|
		autoneg = 1;
 | 
						|
		speed = 1;
 | 
						|
	}
 | 
						|
 | 
						|
	/* Can't set speed for cpu port */
 | 
						|
	if (nr == state->regs->CPU_PORT)
 | 
						|
		return -EINVAL;
 | 
						|
 | 
						|
	if (nr >= dev->ports || nr < 0)
 | 
						|
		return -EINVAL;
 | 
						|
 | 
						|
	ctrl = ip_phy_read(state, nr, 0);
 | 
						|
	if (ctrl < 0)
 | 
						|
		return -EIO;
 | 
						|
 | 
						|
	ctrl &= (~(1<<12));
 | 
						|
	ctrl &= (~(1<<13));
 | 
						|
	ctrl |= (autoneg<<12);
 | 
						|
	ctrl |= (speed<<13);
 | 
						|
 | 
						|
	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)
 | 
						|
{
 | 
						|
	struct ip175c_state *state = dev->priv;
 | 
						|
	int nr = val->port_vlan;
 | 
						|
	int speed, status;
 | 
						|
 | 
						|
	if (nr == state->regs->CPU_PORT) {
 | 
						|
		val->value.i = 100;
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
 | 
						|
	if (nr >= dev->ports || nr < 0)
 | 
						|
		return -EINVAL;
 | 
						|
 | 
						|
	status = ip_phy_read(state, nr, 1);
 | 
						|
	speed = ip_phy_read(state, nr, 18);
 | 
						|
	if (status < 0 || speed < 0)
 | 
						|
		return -EIO;
 | 
						|
 | 
						|
	if (status & 4)
 | 
						|
		val->value.i = ((speed & (1<<11)) ? 100 : 10);
 | 
						|
	else
 | 
						|
		val->value.i = 0;
 | 
						|
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static int ip175c_get_port_status(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 | 
						|
{
 | 
						|
	struct ip175c_state *state = dev->priv;
 | 
						|
	int ctrl, speed, status;
 | 
						|
	int nr = val->port_vlan;
 | 
						|
	int len;
 | 
						|
	char *buf = state->buf; // fixed-length at 80.
 | 
						|
 | 
						|
	if (nr == state->regs->CPU_PORT) {
 | 
						|
		sprintf(buf, "up, 100 Mbps, cpu port");
 | 
						|
		val->value.s = buf;
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
 | 
						|
	if (nr >= dev->ports || nr < 0)
 | 
						|
		return -EINVAL;
 | 
						|
 | 
						|
	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;
 | 
						|
 | 
						|
	if (status & 4)
 | 
						|
		len = sprintf(buf, "up, %d Mbps, %s duplex",
 | 
						|
			((speed & (1<<11)) ? 100 : 10),
 | 
						|
			((speed & (1<<10)) ? "full" : "half"));
 | 
						|
	else
 | 
						|
		len = sprintf(buf, "down");
 | 
						|
 | 
						|
	if (ctrl & (1<<12)) {
 | 
						|
		len += sprintf(buf+len, ", auto-negotiate");
 | 
						|
		if (!(status & (1<<5)))
 | 
						|
			len += sprintf(buf+len, " (in progress)");
 | 
						|
	} else {
 | 
						|
		len += sprintf(buf+len, ", fixed speed (%d)",
 | 
						|
			((ctrl & (1<<13)) ? 100 : 10));
 | 
						|
	}
 | 
						|
 | 
						|
	buf[len] = '\0';
 | 
						|
	val->value.s = buf;
 | 
						|
	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;
 | 
						|
	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);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
enum Ports {
 | 
						|
	IP175C_PORT_STATUS,
 | 
						|
	IP175C_PORT_LINK,
 | 
						|
	IP175C_PORT_TAGGED,
 | 
						|
	IP175C_PORT_PVID,
 | 
						|
};
 | 
						|
 | 
						|
enum Globals {
 | 
						|
	IP175C_ENABLE_VLAN,
 | 
						|
	IP175C_GET_NAME,
 | 
						|
	IP175C_REGISTER_PHY,
 | 
						|
	IP175C_REGISTER_MII,
 | 
						|
	IP175C_REGISTER_VALUE,
 | 
						|
	IP175C_REGISTER_ERRNO,
 | 
						|
};
 | 
						|
 | 
						|
static const struct switch_attr ip175c_global[] = {
 | 
						|
	[IP175C_ENABLE_VLAN] = {
 | 
						|
		.id = IP175C_ENABLE_VLAN,
 | 
						|
		.type = SWITCH_TYPE_INT,
 | 
						|
		.name  = "enable_vlan",
 | 
						|
		.description = "Flag to enable or disable VLANs and tagging",
 | 
						|
		.get  = ip175c_get_enable_vlan,
 | 
						|
		.set = ip175c_set_enable_vlan,
 | 
						|
	},
 | 
						|
	[IP175C_GET_NAME] = {
 | 
						|
		.id = IP175C_GET_NAME,
 | 
						|
		.type = SWITCH_TYPE_STRING,
 | 
						|
		.description = "Returns the type of IC+ chip.",
 | 
						|
		.name  = "name",
 | 
						|
		.get  = ip175c_read_name,
 | 
						|
		.set = NULL,
 | 
						|
	},
 | 
						|
	/* jal: added for low level debugging etc. */
 | 
						|
	[IP175C_REGISTER_PHY] = {
 | 
						|
		.id = IP175C_REGISTER_PHY,
 | 
						|
		.type = SWITCH_TYPE_INT,
 | 
						|
		.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 register number (0-31)",
 | 
						|
		.name  = "reg",
 | 
						|
		.get  = ip175c_get_reg,
 | 
						|
		.set = ip175c_set_reg,
 | 
						|
	},
 | 
						|
	[IP175C_REGISTER_VALUE] = {
 | 
						|
		.id = IP175C_REGISTER_VALUE,
 | 
						|
		.type = SWITCH_TYPE_INT,
 | 
						|
		.description = "Direct register access: read/write to register (0-65535)",
 | 
						|
		.name  = "val",
 | 
						|
		.get  = ip175c_get_val,
 | 
						|
		.set = ip175c_set_val,
 | 
						|
	},
 | 
						|
};
 | 
						|
 | 
						|
static const struct switch_attr ip175c_vlan[] = {
 | 
						|
};
 | 
						|
 | 
						|
static const struct switch_attr ip175c_port[] = {
 | 
						|
	[IP175C_PORT_STATUS] = {
 | 
						|
		.id = IP175C_PORT_STATUS,
 | 
						|
		.type = SWITCH_TYPE_STRING,
 | 
						|
		.description = "Returns Detailed port status",
 | 
						|
		.name  = "status",
 | 
						|
		.get  = ip175c_get_port_status,
 | 
						|
		.set = NULL,
 | 
						|
	},
 | 
						|
	[IP175C_PORT_LINK] = {
 | 
						|
		.id = IP175C_PORT_LINK,
 | 
						|
		.type = SWITCH_TYPE_INT,
 | 
						|
		.description = "Link speed. Can write 0 for auto-negotiate, or 10 or 100",
 | 
						|
		.name  = "link",
 | 
						|
		.get  = ip175c_get_port_speed,
 | 
						|
		.set = ip175c_set_port_speed,
 | 
						|
	},
 | 
						|
	[IP175C_PORT_TAGGED] = {
 | 
						|
		.id = IP175C_PORT_LINK,
 | 
						|
		.type = SWITCH_TYPE_INT,
 | 
						|
		.description = "0 = untag, 1 = add tags, 2 = do not alter (This value is reset if vlans are altered)",
 | 
						|
		.name  = "tagged",
 | 
						|
		.get  = ip175c_get_tagged,
 | 
						|
		.set = ip175c_set_tagged,
 | 
						|
	},
 | 
						|
};
 | 
						|
 | 
						|
static int ip175c_probe(struct phy_device *pdev)
 | 
						|
{
 | 
						|
	struct ip175c_state *state;
 | 
						|
	struct switch_dev *dev;
 | 
						|
	int err;
 | 
						|
 | 
						|
	/* We only attach to PHY 0, but use all available PHYs */
 | 
						|
	if (pdev->addr != 0)
 | 
						|
		return -ENODEV;
 | 
						|
 | 
						|
	state = kzalloc(sizeof(*state), GFP_KERNEL);
 | 
						|
	if (!state)
 | 
						|
		return -ENOMEM;
 | 
						|
 | 
						|
	dev = &state->dev;
 | 
						|
	dev->attr_global.attr = ip175c_global;
 | 
						|
	dev->attr_global.n_attr = ARRAY_SIZE(ip175c_global);
 | 
						|
	dev->attr_port.attr = ip175c_port;
 | 
						|
	dev->attr_port.n_attr = ARRAY_SIZE(ip175c_port);
 | 
						|
	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;
 | 
						|
	state->mii_bus = pdev->bus;
 | 
						|
 | 
						|
	err = get_model(state);
 | 
						|
	if (err < 0)
 | 
						|
		goto error;
 | 
						|
 | 
						|
	dev->vlans = MAX_VLANS;
 | 
						|
	dev->cpu_port = state->regs->CPU_PORT;
 | 
						|
	dev->ports = state->regs->NUM_PORTS;
 | 
						|
	dev->name = state->regs->NAME;
 | 
						|
 | 
						|
	return 0;
 | 
						|
 | 
						|
error:
 | 
						|
	kfree(state);
 | 
						|
	return err;
 | 
						|
}
 | 
						|
 | 
						|
static int ip175c_config_init(struct phy_device *pdev)
 | 
						|
{
 | 
						|
	struct ip175c_state *state = pdev->priv;
 | 
						|
	struct net_device *dev = pdev->attached_dev;
 | 
						|
	int err;
 | 
						|
 | 
						|
	pdev->irq = PHY_IGNORE_INTERRUPT;
 | 
						|
	err = register_switch(&state->dev, dev);
 | 
						|
	if (err < 0)
 | 
						|
		return err;
 | 
						|
 | 
						|
	ip175c_reset(&state->dev);
 | 
						|
 | 
						|
	state->registered = true;
 | 
						|
	netif_carrier_on(pdev->attached_dev);
 | 
						|
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static void ip175c_remove(struct phy_device *pdev)
 | 
						|
{
 | 
						|
	struct ip175c_state *state = pdev->priv;
 | 
						|
 | 
						|
	if (state->registered)
 | 
						|
		unregister_switch(&state->dev);
 | 
						|
	kfree(state);
 | 
						|
}
 | 
						|
 | 
						|
static int ip175c_config_aneg(struct phy_device *pdev)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static int ip175c_read_status(struct phy_device *pdev)
 | 
						|
{
 | 
						|
	pdev->speed = SPEED_100;
 | 
						|
	pdev->duplex = DUPLEX_FULL;
 | 
						|
	pdev->pause = pdev->asym_pause = 0;
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static struct phy_driver ip175c_driver = {
 | 
						|
	.name		= "IC+ IP175C",
 | 
						|
	.phy_id		= 0x02430d80,
 | 
						|
	.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 },
 | 
						|
};
 | 
						|
 | 
						|
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_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
 | 
						|
MODULE_LICENSE("GPL");
 | 
						|
 | 
						|
module_init(ip175c_init);
 | 
						|
module_exit(ip175c_exit);
 |