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/* linux/arch/arm/mach-msm/rpc_hsusb.c
*
* Copyright (c) 2008-2012, Code Aurora Forum. All rights reserved.
*
* All source code in this file is licensed under the following license except
* where indicated.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* See the GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can find it at http://www.fsf.org
*/
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <mach/rpc_hsusb.h>
#include <asm/mach-types.h>
static struct msm_rpc_endpoint *usb_ep;
static struct msm_rpc_endpoint *chg_ep;
#define MSM_RPC_CHG_PROG 0x3000001a
struct msm_chg_rpc_ids {
unsigned long vers_comp;
unsigned chg_usb_charger_connected_proc;
unsigned chg_usb_charger_disconnected_proc;
unsigned chg_usb_i_is_available_proc;
unsigned chg_usb_i_is_not_available_proc;
};
struct msm_hsusb_rpc_ids {
unsigned long prog;
unsigned long vers_comp;
unsigned long init_phy;
unsigned long vbus_pwr_up;
unsigned long vbus_pwr_down;
unsigned long update_product_id;
unsigned long update_serial_num;
unsigned long update_is_serial_num_null;
unsigned long reset_rework_installed;
unsigned long enable_pmic_ulpi_data0;
unsigned long disable_pmic_ulpi_data0;
};
static struct msm_hsusb_rpc_ids usb_rpc_ids;
static struct msm_chg_rpc_ids chg_rpc_ids;
static int msm_hsusb_init_rpc_ids(unsigned long vers)
{
if (vers == 0x00010001) {
usb_rpc_ids.prog = 0x30000064;
usb_rpc_ids.vers_comp = 0x00010001;
usb_rpc_ids.init_phy = 2;
usb_rpc_ids.vbus_pwr_up = 6;
usb_rpc_ids.vbus_pwr_down = 7;
usb_rpc_ids.update_product_id = 8;
usb_rpc_ids.update_serial_num = 9;
usb_rpc_ids.update_is_serial_num_null = 10;
usb_rpc_ids.reset_rework_installed = 17;
usb_rpc_ids.enable_pmic_ulpi_data0 = 18;
usb_rpc_ids.disable_pmic_ulpi_data0 = 19;
return 0;
} else if (vers == 0x00010002) {
usb_rpc_ids.prog = 0x30000064;
usb_rpc_ids.vers_comp = 0x00010002;
usb_rpc_ids.init_phy = 2;
usb_rpc_ids.vbus_pwr_up = 6;
usb_rpc_ids.vbus_pwr_down = 7;
usb_rpc_ids.update_product_id = 8;
usb_rpc_ids.update_serial_num = 9;
usb_rpc_ids.update_is_serial_num_null = 10;
usb_rpc_ids.reset_rework_installed = 17;
usb_rpc_ids.enable_pmic_ulpi_data0 = 18;
usb_rpc_ids.disable_pmic_ulpi_data0 = 19;
return 0;
} else {
pr_err("%s: no matches found for version\n",
__func__);
return -ENODATA;
}
}
static int msm_chg_init_rpc(unsigned long vers)
{
if (((vers & RPC_VERSION_MAJOR_MASK) == 0x00010000) ||
((vers & RPC_VERSION_MAJOR_MASK) == 0x00020000) ||
((vers & RPC_VERSION_MAJOR_MASK) == 0x00030000) ||
((vers & RPC_VERSION_MAJOR_MASK) == 0x00040000)) {
chg_ep = msm_rpc_connect_compatible(MSM_RPC_CHG_PROG, vers,
MSM_RPC_UNINTERRUPTIBLE);
if (IS_ERR(chg_ep))
return -ENODATA;
chg_rpc_ids.vers_comp = vers;
chg_rpc_ids.chg_usb_charger_connected_proc = 7;
chg_rpc_ids.chg_usb_charger_disconnected_proc = 8;
chg_rpc_ids.chg_usb_i_is_available_proc = 9;
chg_rpc_ids.chg_usb_i_is_not_available_proc = 10;
return 0;
} else
return -ENODATA;
}
/* rpc connect for hsusb */
int msm_hsusb_rpc_connect(void)
{
if (usb_ep && !IS_ERR(usb_ep)) {
pr_debug("%s: usb_ep already connected\n", __func__);
return 0;
}
/* Initialize rpc ids */
if (msm_hsusb_init_rpc_ids(0x00010001)) {
pr_err("%s: rpc ids initialization failed\n"
, __func__);
return -ENODATA;
}
usb_ep = msm_rpc_connect_compatible(usb_rpc_ids.prog,
usb_rpc_ids.vers_comp,
MSM_RPC_UNINTERRUPTIBLE);
if (IS_ERR(usb_ep)) {
pr_err("%s: connect compatible failed vers = %lx\n",
__func__, usb_rpc_ids.vers_comp);
/* Initialize rpc ids */
if (msm_hsusb_init_rpc_ids(0x00010002)) {
pr_err("%s: rpc ids initialization failed\n",
__func__);
return -ENODATA;
}
usb_ep = msm_rpc_connect_compatible(usb_rpc_ids.prog,
usb_rpc_ids.vers_comp,
MSM_RPC_UNINTERRUPTIBLE);
}
if (IS_ERR(usb_ep)) {
pr_err("%s: connect compatible failed vers = %lx\n",
__func__, usb_rpc_ids.vers_comp);
return -EAGAIN;
} else
pr_debug("%s: rpc connect success vers = %lx\n",
__func__, usb_rpc_ids.vers_comp);
return 0;
}
EXPORT_SYMBOL(msm_hsusb_rpc_connect);
/* rpc connect for charging */
int msm_chg_rpc_connect(void)
{
uint32_t chg_vers;
if (machine_is_msm7x27_surf() || machine_is_qsd8x50_surf())
return -ENOTSUPP;
if (chg_ep && !IS_ERR(chg_ep)) {
pr_debug("%s: chg_ep already connected\n", __func__);
return 0;
}
chg_vers = 0x00040001;
if (!msm_chg_init_rpc(chg_vers))
goto chg_found;
chg_vers = 0x00030001;
if (!msm_chg_init_rpc(chg_vers))
goto chg_found;
chg_vers = 0x00020001;
if (!msm_chg_init_rpc(chg_vers))
goto chg_found;
chg_vers = 0x00010001;
if (!msm_chg_init_rpc(chg_vers))
goto chg_found;
pr_err("%s: connect compatible failed \n",
__func__);
return -EAGAIN;
chg_found:
pr_debug("%s: connected to rpc vers = %x\n",
__func__, chg_vers);
return 0;
}
EXPORT_SYMBOL(msm_chg_rpc_connect);
/* rpc call for phy_reset */
int msm_hsusb_phy_reset(void)
{
int rc = 0;
struct hsusb_phy_start_req {
struct rpc_request_hdr hdr;
} req;
if (!usb_ep || IS_ERR(usb_ep)) {
pr_err("%s: phy_reset rpc failed before call,"
"rc = %ld\n", __func__, PTR_ERR(usb_ep));
return -EAGAIN;
}
rc = msm_rpc_call(usb_ep, usb_rpc_ids.init_phy,
&req, sizeof(req), 5 * HZ);
if (rc < 0) {
pr_err("%s: phy_reset rpc failed! rc = %d\n",
__func__, rc);
} else
pr_debug("msm_hsusb_phy_reset\n");
return rc;
}
EXPORT_SYMBOL(msm_hsusb_phy_reset);
/* rpc call for vbus powerup */
int msm_hsusb_vbus_powerup(void)
{
int rc = 0;
struct hsusb_phy_start_req {
struct rpc_request_hdr hdr;
} req;
if (!usb_ep || IS_ERR(usb_ep)) {
pr_err("%s: vbus_powerup rpc failed before call,"
"rc = %ld\n", __func__, PTR_ERR(usb_ep));
return -EAGAIN;
}
rc = msm_rpc_call(usb_ep, usb_rpc_ids.vbus_pwr_up,
&req, sizeof(req), 5 * HZ);
if (rc < 0) {
pr_err("%s: vbus_powerup failed! rc = %d\n",
__func__, rc);
} else
pr_debug("msm_hsusb_vbus_powerup\n");
return rc;
}
EXPORT_SYMBOL(msm_hsusb_vbus_powerup);
/* rpc call for vbus shutdown */
int msm_hsusb_vbus_shutdown(void)
{
int rc = 0;
struct hsusb_phy_start_req {
struct rpc_request_hdr hdr;
} req;
if (!usb_ep || IS_ERR(usb_ep)) {
pr_err("%s: vbus_shutdown rpc failed before call,"
"rc = %ld\n", __func__, PTR_ERR(usb_ep));
return -EAGAIN;
}
rc = msm_rpc_call(usb_ep, usb_rpc_ids.vbus_pwr_down,
&req, sizeof(req), 5 * HZ);
if (rc < 0) {
pr_err("%s: vbus_shutdown failed! rc = %d\n",
__func__, rc);
} else
pr_debug("msm_hsusb_vbus_shutdown\n");
return rc;
}
EXPORT_SYMBOL(msm_hsusb_vbus_shutdown);
int msm_hsusb_send_productID(uint32_t product_id)
{
int rc = 0;
struct hsusb_phy_start_req {
struct rpc_request_hdr hdr;
uint32_t product_id;
} req;
if (!usb_ep || IS_ERR(usb_ep)) {
pr_err("%s: rpc connect failed: rc = %ld\n",
__func__, PTR_ERR(usb_ep));
return -EAGAIN;
}
req.product_id = cpu_to_be32(product_id);
rc = msm_rpc_call(usb_ep, usb_rpc_ids.update_product_id,
&req, sizeof(req),
5 * HZ);
if (rc < 0)
pr_err("%s: rpc call failed! error: %d\n",
__func__, rc);
else
pr_debug("%s: rpc call success\n" , __func__);
return rc;
}
EXPORT_SYMBOL(msm_hsusb_send_productID);
int msm_hsusb_send_serial_number(const char *serial_number)
{
int rc = 0, serial_len, rlen;
struct hsusb_send_sn_req {
struct rpc_request_hdr hdr;
uint32_t length;
char sn[0];
} *req;
if (!usb_ep || IS_ERR(usb_ep)) {
pr_err("%s: rpc connect failed: rc = %ld\n",
__func__, PTR_ERR(usb_ep));
return -EAGAIN;
}
/*
* USB driver passes null terminated string to us. Modem processor
* expects serial number to be 32 bit aligned.
*/
serial_len = strlen(serial_number)+1;
rlen = sizeof(struct rpc_request_hdr) + sizeof(uint32_t) +
((serial_len + 3) & ~3);
req = kmalloc(rlen, GFP_KERNEL);
if (!req)
return -ENOMEM;
req->length = cpu_to_be32(serial_len);
strncpy(req->sn , serial_number, serial_len);
rc = msm_rpc_call(usb_ep, usb_rpc_ids.update_serial_num,
req, rlen, 5 * HZ);
if (rc < 0)
pr_err("%s: rpc call failed! error: %d\n",
__func__, rc);
else
pr_debug("%s: rpc call success\n", __func__);
kfree(req);
return rc;
}
EXPORT_SYMBOL(msm_hsusb_send_serial_number);
int msm_hsusb_is_serial_num_null(uint32_t val)
{
int rc = 0;
struct hsusb_phy_start_req {
struct rpc_request_hdr hdr;
uint32_t value;
} req;
if (!usb_ep || IS_ERR(usb_ep)) {
pr_err("%s: rpc connect failed: rc = %ld\n",
__func__, PTR_ERR(usb_ep));
return -EAGAIN;
}
if (!usb_rpc_ids.update_is_serial_num_null) {
pr_err("%s: proc id not supported \n", __func__);
return -ENODATA;
}
req.value = cpu_to_be32(val);
rc = msm_rpc_call(usb_ep, usb_rpc_ids.update_is_serial_num_null,
&req, sizeof(req),
5 * HZ);
if (rc < 0)
pr_err("%s: rpc call failed! error: %d\n" ,
__func__, rc);
else
pr_debug("%s: rpc call success\n", __func__);
return rc;
}
EXPORT_SYMBOL(msm_hsusb_is_serial_num_null);
int msm_chg_usb_charger_connected(uint32_t device)
{
int rc = 0;
struct hsusb_start_req {
struct rpc_request_hdr hdr;
uint32_t otg_dev;
} req;
if (!chg_ep || IS_ERR(chg_ep))
return -EAGAIN;
req.otg_dev = cpu_to_be32(device);
rc = msm_rpc_call(chg_ep, chg_rpc_ids.chg_usb_charger_connected_proc,
&req, sizeof(req), 5 * HZ);
if (rc < 0) {
pr_err("%s: charger_connected failed! rc = %d\n",
__func__, rc);
} else
pr_debug("msm_chg_usb_charger_connected\n");
return rc;
}
EXPORT_SYMBOL(msm_chg_usb_charger_connected);
int msm_chg_usb_i_is_available(uint32_t sample)
{
int rc = 0;
struct hsusb_start_req {
struct rpc_request_hdr hdr;
uint32_t i_ma;
} req;
if (!chg_ep || IS_ERR(chg_ep))
return -EAGAIN;
req.i_ma = cpu_to_be32(sample);
rc = msm_rpc_call(chg_ep, chg_rpc_ids.chg_usb_i_is_available_proc,
&req, sizeof(req), 5 * HZ);
if (rc < 0) {
pr_err("%s: charger_i_available failed! rc = %d\n",
__func__, rc);
} else
pr_debug("msm_chg_usb_i_is_available(%u)\n", sample);
return rc;
}
EXPORT_SYMBOL(msm_chg_usb_i_is_available);
int msm_chg_usb_i_is_not_available(void)
{
int rc = 0;
struct hsusb_start_req {
struct rpc_request_hdr hdr;
} req;
if (!chg_ep || IS_ERR(chg_ep))
return -EAGAIN;
rc = msm_rpc_call(chg_ep, chg_rpc_ids.chg_usb_i_is_not_available_proc,
&req, sizeof(req), 5 * HZ);
if (rc < 0) {
pr_err("%s: charger_i_not_available failed! rc ="
"%d \n", __func__, rc);
} else
pr_debug("msm_chg_usb_i_is_not_available\n");
return rc;
}
EXPORT_SYMBOL(msm_chg_usb_i_is_not_available);
int msm_chg_usb_charger_disconnected(void)
{
int rc = 0;
struct hsusb_start_req {
struct rpc_request_hdr hdr;
} req;
if (!chg_ep || IS_ERR(chg_ep))
return -EAGAIN;
rc = msm_rpc_call(chg_ep, chg_rpc_ids.chg_usb_charger_disconnected_proc,
&req, sizeof(req), 5 * HZ);
if (rc < 0) {
pr_err("%s: charger_disconnected failed! rc = %d\n",
__func__, rc);
} else
pr_debug("msm_chg_usb_charger_disconnected\n");
return rc;
}
EXPORT_SYMBOL(msm_chg_usb_charger_disconnected);
/* rpc call to close connection */
int msm_hsusb_rpc_close(void)
{
int rc = 0;
if (IS_ERR(usb_ep)) {
pr_err("%s: rpc_close failed before call, rc = %ld\n",
__func__, PTR_ERR(usb_ep));
return -EAGAIN;
}
rc = msm_rpc_close(usb_ep);
usb_ep = NULL;
if (rc < 0) {
pr_err("%s: close rpc failed! rc = %d\n",
__func__, rc);
return -EAGAIN;
} else
pr_debug("rpc close success\n");
return rc;
}
EXPORT_SYMBOL(msm_hsusb_rpc_close);
/* rpc call to close charging connection */
int msm_chg_rpc_close(void)
{
int rc = 0;
if (IS_ERR(chg_ep)) {
pr_err("%s: rpc_close failed before call, rc = %ld\n",
__func__, PTR_ERR(chg_ep));
return -EAGAIN;
}
rc = msm_rpc_close(chg_ep);
chg_ep = NULL;
if (rc < 0) {
pr_err("%s: close rpc failed! rc = %d\n",
__func__, rc);
return -EAGAIN;
} else
pr_debug("rpc close success\n");
return rc;
}
EXPORT_SYMBOL(msm_chg_rpc_close);
int msm_hsusb_reset_rework_installed(void)
{
int rc = 0;
struct hsusb_start_req {
struct rpc_request_hdr hdr;
} req;
struct hsusb_rpc_rep {
struct rpc_reply_hdr hdr;
uint32_t rework;
} rep;
memset(&rep, 0, sizeof(rep));
if (!usb_ep || IS_ERR(usb_ep)) {
pr_err("%s: hsusb rpc connection not initialized, rc = %ld\n",
__func__, PTR_ERR(usb_ep));
return -EAGAIN;
}
rc = msm_rpc_call_reply(usb_ep, usb_rpc_ids.reset_rework_installed,
&req, sizeof(req),
&rep, sizeof(rep), 5 * HZ);
if (rc < 0) {
pr_err("%s: rpc call failed! error: (%d)"
"proc id: (%lx)\n",
__func__, rc,
usb_rpc_ids.reset_rework_installed);
return rc;
}
pr_info("%s: rework: (%d)\n", __func__, rep.rework);
return be32_to_cpu(rep.rework);
}
EXPORT_SYMBOL(msm_hsusb_reset_rework_installed);
static int msm_hsusb_pmic_ulpidata0_config(int enable)
{
int rc = 0;
struct hsusb_start_req {
struct rpc_request_hdr hdr;
} req;
if (!usb_ep || IS_ERR(usb_ep)) {
pr_err("%s: hsusb rpc connection not initialized, rc = %ld\n",
__func__, PTR_ERR(usb_ep));
return -EAGAIN;
}
if (enable)
rc = msm_rpc_call(usb_ep, usb_rpc_ids.enable_pmic_ulpi_data0,
&req, sizeof(req), 5 * HZ);
else
rc = msm_rpc_call(usb_ep, usb_rpc_ids.disable_pmic_ulpi_data0,
&req, sizeof(req), 5 * HZ);
if (rc < 0)
pr_err("%s: rpc call failed! error: %d\n",
__func__, rc);
return rc;
}
int msm_hsusb_enable_pmic_ulpidata0(void)
{
return msm_hsusb_pmic_ulpidata0_config(1);
}
EXPORT_SYMBOL(msm_hsusb_enable_pmic_ulpidata0);
int msm_hsusb_disable_pmic_ulpidata0(void)
{
return msm_hsusb_pmic_ulpidata0_config(0);
}
EXPORT_SYMBOL(msm_hsusb_disable_pmic_ulpidata0);
/* wrapper for sending pid and serial# info to bootloader */
int usb_diag_update_pid_and_serial_num(uint32_t pid, const char *snum)
{
int ret;
ret = msm_hsusb_send_productID(pid);
if (ret)
return ret;
if (!snum) {
ret = msm_hsusb_is_serial_num_null(1);
if (ret)
return ret;
}
ret = msm_hsusb_is_serial_num_null(0);
if (ret)
return ret;
ret = msm_hsusb_send_serial_number(snum);
if (ret)
return ret;
return 0;
}
#ifdef CONFIG_USB_MSM_72K
/* charger api wrappers */
int hsusb_chg_init(int connect)
{
if (connect)
return msm_chg_rpc_connect();
else
return msm_chg_rpc_close();
}
EXPORT_SYMBOL(hsusb_chg_init);
void hsusb_chg_vbus_draw(unsigned mA)
{
msm_chg_usb_i_is_available(mA);
}
EXPORT_SYMBOL(hsusb_chg_vbus_draw);
void hsusb_chg_connected(enum chg_type chgtype)
{
char *chg_types[] = {"STD DOWNSTREAM PORT",
"CARKIT",
"DEDICATED CHARGER",
"INVALID"};
if (chgtype == USB_CHG_TYPE__INVALID) {
msm_chg_usb_i_is_not_available();
msm_chg_usb_charger_disconnected();
return;
}
pr_info("\nCharger Type: %s\n", chg_types[chgtype]);
msm_chg_usb_charger_connected(chgtype);
}
EXPORT_SYMBOL(hsusb_chg_connected);
#endif