diff options
Diffstat (limited to 'drivers/hid')
-rw-r--r-- | drivers/hid/amd-sfh-hid/amd_sfh_common.h | 5 | ||||
-rw-r--r-- | drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c | 14 | ||||
-rw-r--r-- | drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c | 37 | ||||
-rw-r--r-- | drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.h | 1 |
4 files changed, 57 insertions, 0 deletions
diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_common.h b/drivers/hid/amd-sfh-hid/amd_sfh_common.h index 2643bb14fee2..cd57037bf217 100644 --- a/drivers/hid/amd-sfh-hid/amd_sfh_common.h +++ b/drivers/hid/amd-sfh-hid/amd_sfh_common.h @@ -37,6 +37,10 @@ struct amd_mp2_sensor_info { dma_addr_t dma_address; }; +struct sfh_dev_status { + bool is_hpd_present; +}; + struct amd_mp2_dev { struct pci_dev *pdev; struct amdtp_cl_data *cl_data; @@ -47,6 +51,7 @@ struct amd_mp2_dev { struct amd_input_data in_data; /* mp2 active control status */ u32 mp2_acs; + struct sfh_dev_status dev_en; }; struct amd_mp2_ops { diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c index e9c6413af24a..0351b0fd394a 100644 --- a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c @@ -73,6 +73,12 @@ static int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata) int i, status; for (i = 0; i < cl_data->num_hid_devices; i++) { + switch (cl_data->sensor_idx[i]) { + case HPD_IDX: + privdata->dev_en.is_hpd_present = false; + break; + } + if (cl_data->sensor_sts[i] == SENSOR_ENABLED) { privdata->mp2_ops->stop(privdata, cl_data->sensor_idx[i]); status = amd_sfh_wait_for_response @@ -178,6 +184,11 @@ static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata) rc = amdtp_hid_probe(i, cl_data); if (rc) goto cleanup; + switch (cl_data->sensor_idx[i]) { + case HPD_IDX: + privdata->dev_en.is_hpd_present = true; + break; + } } dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n", cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]), @@ -259,6 +270,7 @@ static void amd_mp2_pci_remove(void *privdata) { struct amd_mp2_dev *mp2 = privdata; + sfh_deinit_emp2(); amd_sfh_hid_client_deinit(privdata); mp2->mp2_ops->stop_all(mp2); pci_intx(mp2->pdev, false); @@ -311,12 +323,14 @@ int amd_sfh1_1_init(struct amd_mp2_dev *mp2) rc = amd_sfh_irq_init(mp2); if (rc) { + sfh_deinit_emp2(); dev_err(dev, "amd_sfh_irq_init failed\n"); return rc; } rc = amd_sfh1_1_hid_client_init(mp2); if (rc) { + sfh_deinit_emp2(); dev_err(dev, "amd_sfh1_1_hid_client_init failed\n"); return rc; } diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c index 4f81ef2d4f56..197b828fc6a0 100644 --- a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c @@ -7,11 +7,14 @@ * * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com> */ +#include <linux/amd-pmf-io.h> #include <linux/io-64-nonatomic-lo-hi.h> #include <linux/iopoll.h> #include "amd_sfh_interface.h" +static struct amd_mp2_dev *emp2; + static int amd_sfh_wait_response(struct amd_mp2_dev *mp2, u8 sid, u32 cmd_id) { struct sfh_cmd_response cmd_resp; @@ -73,7 +76,41 @@ static struct amd_mp2_ops amd_sfh_ops = { .response = amd_sfh_wait_response, }; +void sfh_deinit_emp2(void) +{ + emp2 = NULL; +} + void sfh_interface_init(struct amd_mp2_dev *mp2) { mp2->mp2_ops = &amd_sfh_ops; + emp2 = mp2; +} + +static int amd_sfh_hpd_info(u8 *user_present) +{ + struct hpd_status hpdstatus; + + if (!user_present) + return -EINVAL; + + if (!emp2 || !emp2->dev_en.is_hpd_present) + return -ENODEV; + + hpdstatus.val = readl(emp2->mmio + AMD_C2P_MSG(4)); + *user_present = hpdstatus.shpd.presence; + + return 0; +} + +int amd_get_sfh_info(struct amd_sfh_info *sfh_info, enum sfh_message_type op) +{ + if (sfh_info) { + switch (op) { + case MT_HPD: + return amd_sfh_hpd_info(&sfh_info->user_present); + } + } + return -EINVAL; } +EXPORT_SYMBOL_GPL(amd_get_sfh_info); diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.h b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.h index 75267b0fec70..2c211d28764d 100644 --- a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.h +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.h @@ -165,6 +165,7 @@ struct hpd_status { }; void sfh_interface_init(struct amd_mp2_dev *mp2); +void sfh_deinit_emp2(void); void amd_sfh1_1_set_desc_ops(struct amd_mp2_ops *mp2_ops); int amd_sfh_float_to_int(u32 flt32_val); #endif |