Angel Pons | 8a3453f | 2020-04-02 23:48:19 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 2 | |
Matt Delco | 879b3c1 | 2020-06-17 13:10:22 +0530 | [diff] [blame] | 3 | #include <stdlib.h> |
Furquan Shaikh | 76cedd2 | 2020-05-02 10:24:23 -0700 | [diff] [blame] | 4 | #include <acpi/acpi.h> |
| 5 | #include <acpi/acpi_device.h> |
| 6 | #include <acpi/acpigen.h> |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 7 | #include <console/console.h> |
Nico Huber | 0f2dd1e | 2017-08-01 14:02:40 +0200 | [diff] [blame] | 8 | #include <device/i2c_simple.h> |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 9 | #include <device/device.h> |
| 10 | #include <device/path.h> |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 11 | #include <device/pci_def.h> |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 12 | #include "chip.h" |
| 13 | |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 14 | #define SENSOR_NAME_UUID "822ace8f-2814-4174-a56b-5f029fe079ee" |
| 15 | #define SENSOR_TYPE_UUID "26257549-9271-4ca4-bb43-c4899d5a4881" |
| 16 | #define DEFAULT_ENDPOINT 0 |
Matt Delco | 879b3c1 | 2020-06-17 13:10:22 +0530 | [diff] [blame] | 17 | #define DEFAULT_REMOTE_NAME "\\_SB.PCI0.CIO2" |
| 18 | #define CIO2_PCI_DEV 0x14 |
| 19 | #define CIO2_PCI_FN 0x3 |
| 20 | |
| 21 | /* |
| 22 | * This implementation assumes there is only 1 endpoint at each end of every data port. It also |
| 23 | * assumes there are no clock lanes. It also assumes that any VCM or NVM for a CAM is on the |
| 24 | * same I2C bus as the CAM. |
| 25 | */ |
| 26 | |
| 27 | /* |
| 28 | * Adds settings for a CIO2 device (typically at "\_SB.PCI0.CIO2"). A _DSD is added that |
| 29 | * specifies a child table for each port (e.g., PRT0 for "port0" and PRT1 for "port1"). Each |
| 30 | * PRTx table specifies a table for each endpoint (though only 1 endpoint is supported by this |
| 31 | * implementation so the table only has an "endpoint0" that points to a EPx0 table). The EPx0 |
| 32 | * table primarily describes the # of lanes in "data-lines" and specifies the name of the other |
| 33 | * side in "remote-endpoint" (the name is usually of the form "\_SB.PCI0.I2Cx.CAM0" for the |
| 34 | * first port/cam and "\_SB.PCI0.I2Cx.CAM1" if there's a second port/cam). |
| 35 | */ |
| 36 | static void camera_fill_cio2(const struct device *dev) |
| 37 | { |
| 38 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
| 39 | struct acpi_dp *dsd = acpi_dp_new_table("_DSD"); |
| 40 | char *ep_table_name[MAX_PORT_ENTRIES] = {NULL}; |
| 41 | char *port_table_name[MAX_PORT_ENTRIES] = {NULL}; |
| 42 | char *port_name[MAX_PORT_ENTRIES] = {NULL}; |
| 43 | unsigned int i, j; |
| 44 | char name[BUS_PATH_MAX]; |
| 45 | struct acpi_dp *ep_table = NULL; |
| 46 | struct acpi_dp *port_table = NULL; |
| 47 | struct acpi_dp *remote = NULL; |
| 48 | struct acpi_dp *lanes = NULL; |
| 49 | |
| 50 | for (i = 0; i < config->cio2_num_ports && i < MAX_PORT_ENTRIES; ++i) { |
| 51 | snprintf(name, sizeof(name), "EP%u0", i); |
| 52 | ep_table_name[i] = strdup(name); |
| 53 | ep_table = acpi_dp_new_table(ep_table_name[i]); |
| 54 | acpi_dp_add_integer(ep_table, "endpoint", 0); |
| 55 | acpi_dp_add_integer(ep_table, "clock-lanes", 0); |
| 56 | |
| 57 | if (config->cio2_lanes_used[i] > 0) { |
| 58 | lanes = acpi_dp_new_table("data-lanes"); |
| 59 | |
| 60 | for (j = 1; j <= config->cio2_lanes_used[i] && |
| 61 | j <= MAX_PORT_ENTRIES; ++j) |
| 62 | acpi_dp_add_integer(lanes, NULL, j); |
| 63 | acpi_dp_add_array(ep_table, lanes); |
| 64 | } |
| 65 | |
| 66 | if (config->cio2_lane_endpoint[i]) { |
| 67 | remote = acpi_dp_new_table("remote-endpoint"); |
| 68 | acpi_dp_add_reference(remote, NULL, config->cio2_lane_endpoint[i]); |
| 69 | acpi_dp_add_integer(remote, NULL, 0); |
| 70 | acpi_dp_add_integer(remote, NULL, 0); |
| 71 | acpi_dp_add_array(ep_table, remote); |
| 72 | } |
| 73 | |
| 74 | snprintf(name, sizeof(name), "PRT%u", i); |
| 75 | port_table_name[i] = strdup(name); |
| 76 | port_table = acpi_dp_new_table(port_table_name[i]); |
| 77 | acpi_dp_add_integer(port_table, "port", config->cio2_prt[i]); |
| 78 | acpi_dp_add_child(port_table, "endpoint0", ep_table); |
| 79 | |
| 80 | snprintf(name, sizeof(name), "port%u", i); |
| 81 | port_name[i] = strdup(name); |
| 82 | acpi_dp_add_child(dsd, port_name[i], port_table); |
| 83 | } |
| 84 | |
| 85 | acpi_dp_write(dsd); |
| 86 | |
| 87 | for (i = 0; i < config->cio2_num_ports; ++i) { |
| 88 | free(ep_table_name[i]); |
| 89 | free(port_table_name[i]); |
| 90 | free(port_name[i]); |
| 91 | } |
| 92 | } |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 93 | |
Matt Delco | 1ffee9d | 2020-06-17 12:55:35 +0530 | [diff] [blame] | 94 | static void apply_pld_defaults(struct drivers_intel_mipi_camera_config *config) |
| 95 | { |
| 96 | if (!config->pld.ignore_color) |
| 97 | config->pld.ignore_color = 1; |
| 98 | |
| 99 | if (!config->pld.visible) |
| 100 | config->pld.visible = 1; |
| 101 | |
| 102 | if (!config->pld.vertical_offset) |
| 103 | config->pld.vertical_offset = 0xffff; |
| 104 | |
| 105 | if (!config->pld.horizontal_offset) |
| 106 | config->pld.horizontal_offset = 0xffff; |
| 107 | |
| 108 | /* |
| 109 | * PLD_PANEL_TOP has a value of zero, so the following will change any instance of |
| 110 | * PLD_PANEL_TOP to PLD_PANEL_FRONT unless disable_pld_defaults is set. |
| 111 | */ |
| 112 | if (!config->pld.panel) |
| 113 | config->pld.panel = PLD_PANEL_FRONT; |
| 114 | |
| 115 | /* |
| 116 | * PLD_HORIZONTAL_POSITION_LEFT has a value of zero, so the following will change any |
| 117 | * instance of that value to PLD_HORIZONTAL_POSITION_CENTER unless disable_pld_defaults |
| 118 | * is set. |
| 119 | */ |
| 120 | if (!config->pld.horizontal_position) |
| 121 | config->pld.horizontal_position = PLD_HORIZONTAL_POSITION_CENTER; |
| 122 | |
| 123 | /* |
| 124 | * The desired default for |vertical_position| is PLD_VERTICAL_POSITION_UPPER, which |
| 125 | * has a value of zero so no work is needed to set a default. The same applies for |
| 126 | * setting |shape| to PLD_SHAPE_ROUND. |
| 127 | */ |
| 128 | } |
| 129 | |
| 130 | static void camera_generate_pld(const struct device *dev) |
| 131 | { |
| 132 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
| 133 | |
| 134 | if (config->use_pld) { |
| 135 | if (!config->disable_pld_defaults) |
| 136 | apply_pld_defaults(config); |
| 137 | |
| 138 | acpigen_write_pld(&config->pld); |
| 139 | } |
| 140 | } |
| 141 | |
Matt Delco | 964033f | 2020-06-17 12:49:43 +0530 | [diff] [blame] | 142 | static uint32_t address_for_dev_type(const struct device *dev, uint8_t dev_type) |
| 143 | { |
| 144 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
| 145 | uint16_t i2c_bus = dev->bus ? dev->bus->secondary : 0xFFFF; |
| 146 | uint16_t i2c_addr; |
| 147 | |
| 148 | switch (dev_type) { |
| 149 | case DEV_TYPE_SENSOR: |
| 150 | i2c_addr = dev->path.i2c.device; |
| 151 | break; |
| 152 | case DEV_TYPE_VCM: |
| 153 | i2c_addr = config->vcm_address; |
| 154 | break; |
| 155 | case DEV_TYPE_ROM: |
| 156 | i2c_addr = config->rom_address; |
| 157 | break; |
| 158 | default: |
| 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | return (((uint32_t)i2c_bus) << 24 | ((uint32_t)i2c_addr) << 8 | dev_type); |
| 163 | } |
| 164 | |
| 165 | static void camera_generate_dsm(const struct device *dev) |
| 166 | { |
| 167 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
| 168 | int local1_ret = 1 + (config->ssdb.vcm_type ? 1 : 0) + (config->ssdb.rom_type ? 1 : 0); |
| 169 | int next_local1 = 1; |
| 170 | /* Method (_DSM, 4, NotSerialized) */ |
| 171 | acpigen_write_method("_DSM", 4); |
| 172 | |
| 173 | /* ToBuffer (Arg0, Local0) */ |
| 174 | acpigen_write_to_buffer(ARG0_OP, LOCAL0_OP); |
| 175 | |
| 176 | /* If (LEqual (Local0, ToUUID(uuid))) */ |
| 177 | acpigen_write_if(); |
| 178 | acpigen_emit_byte(LEQUAL_OP); |
| 179 | acpigen_emit_byte(LOCAL0_OP); |
| 180 | acpigen_write_uuid(SENSOR_NAME_UUID); |
| 181 | acpigen_write_return_string(config->sensor_name ? config->sensor_name : "UNKNOWN"); |
| 182 | acpigen_pop_len(); /* If */ |
| 183 | |
| 184 | /* If (LEqual (Local0, ToUUID(uuid))) */ |
| 185 | acpigen_write_if(); |
| 186 | acpigen_emit_byte(LEQUAL_OP); |
| 187 | acpigen_emit_byte(LOCAL0_OP); |
| 188 | acpigen_write_uuid(SENSOR_TYPE_UUID); |
| 189 | /* ToInteger (Arg2, Local1) */ |
| 190 | acpigen_write_to_integer(ARG2_OP, LOCAL1_OP); |
| 191 | |
| 192 | /* If (LEqual (Local1, 1)) */ |
| 193 | acpigen_write_if_lequal_op_int(LOCAL1_OP, next_local1++); |
| 194 | acpigen_write_return_integer(local1_ret); |
| 195 | acpigen_pop_len(); /* If Arg2=1 */ |
| 196 | |
| 197 | /* If (LEqual (Local1, 2)) */ |
| 198 | acpigen_write_if_lequal_op_int(LOCAL1_OP, next_local1++); |
| 199 | acpigen_write_return_integer(address_for_dev_type(dev, DEV_TYPE_SENSOR)); |
| 200 | acpigen_pop_len(); /* If Arg2=2 */ |
| 201 | |
| 202 | if (config->ssdb.vcm_type) { |
| 203 | /* If (LEqual (Local1, 3)) */ |
| 204 | acpigen_write_if_lequal_op_int(LOCAL1_OP, next_local1++); |
| 205 | acpigen_write_return_integer(address_for_dev_type(dev, DEV_TYPE_VCM)); |
| 206 | acpigen_pop_len(); /* If Arg2=3 */ |
| 207 | } |
| 208 | |
| 209 | if (config->ssdb.rom_type) { |
| 210 | /* If (LEqual (Local1, 3 or 4)) */ |
| 211 | acpigen_write_if_lequal_op_int(LOCAL1_OP, next_local1); |
| 212 | acpigen_write_return_integer(address_for_dev_type(dev, DEV_TYPE_ROM)); |
| 213 | acpigen_pop_len(); /* If Arg2=3 or 4 */ |
| 214 | } |
| 215 | |
| 216 | acpigen_pop_len(); /* If uuid */ |
| 217 | |
| 218 | /* Return (Buffer (One) { 0x0 }) */ |
| 219 | acpigen_write_return_singleton_buffer(0x0); |
| 220 | |
| 221 | acpigen_pop_len(); /* Method _DSM */ |
| 222 | } |
| 223 | |
Matt Delco | 879b3c1 | 2020-06-17 13:10:22 +0530 | [diff] [blame] | 224 | static void camera_fill_ssdb_defaults(struct drivers_intel_mipi_camera_config *config) |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 225 | { |
Matt Delco | 879b3c1 | 2020-06-17 13:10:22 +0530 | [diff] [blame] | 226 | struct device *cio2 = pcidev_on_root(CIO2_PCI_DEV, CIO2_PCI_FN); |
| 227 | struct drivers_intel_mipi_camera_config *cio2_config; |
| 228 | |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 229 | if (config->disable_ssdb_defaults) |
| 230 | return; |
| 231 | |
Matt Delco | 879b3c1 | 2020-06-17 13:10:22 +0530 | [diff] [blame] | 232 | if (!config->ssdb.bdf_value) |
| 233 | config->ssdb.bdf_value = PCI_DEVFN(CIO2_PCI_DEV, CIO2_PCI_FN); |
| 234 | |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 235 | if (!config->ssdb.platform) |
| 236 | config->ssdb.platform = PLATFORM_SKC; |
| 237 | |
| 238 | if (!config->ssdb.flash_support) |
| 239 | config->ssdb.flash_support = FLASH_DISABLE; |
| 240 | |
| 241 | if (!config->ssdb.privacy_led) |
| 242 | config->ssdb.privacy_led = PRIVACY_LED_A_16mA; |
| 243 | |
| 244 | if (!config->ssdb.mipi_define) |
| 245 | config->ssdb.mipi_define = MIPI_INFO_ACPI_DEFINED; |
| 246 | |
| 247 | if (!config->ssdb.mclk_speed) |
| 248 | config->ssdb.mclk_speed = CLK_FREQ_19_2MHZ; |
Matt Delco | 879b3c1 | 2020-06-17 13:10:22 +0530 | [diff] [blame] | 249 | |
| 250 | if (!config->ssdb.lanes_used) { |
| 251 | cio2_config = cio2 ? cio2->chip_info : NULL; |
| 252 | |
| 253 | if (!cio2_config) { |
| 254 | printk(BIOS_ERR, "Failed to get CIO2 config\n"); |
| 255 | } else if (cio2_config->device_type != INTEL_ACPI_CAMERA_CIO2) { |
| 256 | printk(BIOS_ERR, "Device type isn't CIO2: %u\n", |
| 257 | (u32)cio2_config->device_type); |
| 258 | } else if (config->ssdb.link_used >= cio2_config->cio2_num_ports) { |
| 259 | printk(BIOS_ERR, "%u exceeds CIO2's %u links\n", |
| 260 | (u32)config->ssdb.link_used, |
| 261 | (u32)cio2_config->cio2_num_ports); |
| 262 | } else { |
| 263 | config->ssdb.lanes_used = |
| 264 | cio2_config->cio2_lanes_used[config->ssdb.link_used]; |
| 265 | } |
| 266 | } |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 267 | } |
| 268 | |
| 269 | /* |
| 270 | * Adds settings for a camera sensor device (typically at "\_SB.PCI0.I2Cx.CAMy"). The drivers |
| 271 | * for Linux tends to expect the camera sensor device and any related nvram / vcm devices to be |
| 272 | * separate ACPI devices, while the drivers for Windows want all of these to be grouped |
| 273 | * together in the camera sensor ACPI device. This implementation tries to satisfy both, |
| 274 | * though the unfortunate tradeoff is that the same I2C address for nvram and vcm is advertised |
| 275 | * by multiple devices in ACPI (via "_CRS"). The Windows driver can use the "_DSM" method to |
| 276 | * disambiguate the I2C resources in the camera sensor ACPI device. Drivers for Windows |
| 277 | * typically query "SSDB" for configuration information (represented as a binary blob dump of |
| 278 | * struct), while Linux drivers typically consult individual parameters in "_DSD". |
| 279 | * |
| 280 | * The tree of tables in "_DSD" is analogous to what's used for the "CIO2" device. The _DSD |
| 281 | * specifies a child table for the sensor's port (e.g., PRT0 for "port0"--this implementation |
| 282 | * assumes a camera only has 1 port). The PRT0 table specifies a table for each endpoint |
| 283 | * (though only 1 endpoint is supported by this implementation so the table only has an |
| 284 | * "endpoint0" that points to a EP00 table). The EP00 table primarily describes the # of lanes |
| 285 | * in "data-lines", a list of frequencies in "list-frequencies", and specifies the name of the |
| 286 | * other side in "remote-endpoint" (typically "\_SB.PCI0.CIO2"). |
| 287 | */ |
| 288 | static void camera_fill_sensor(const struct device *dev) |
| 289 | { |
| 290 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
| 291 | struct acpi_dp *ep00 = NULL; |
| 292 | struct acpi_dp *prt0 = NULL; |
| 293 | struct acpi_dp *dsd = NULL; |
| 294 | struct acpi_dp *remote = NULL; |
| 295 | const char *vcm_name = NULL; |
| 296 | struct acpi_dp *lens_focus = NULL; |
Matt Delco | 879b3c1 | 2020-06-17 13:10:22 +0530 | [diff] [blame] | 297 | const char *remote_name; |
| 298 | struct device *cio2 = pcidev_on_root(CIO2_PCI_DEV, CIO2_PCI_FN); |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 299 | |
Matt Delco | 1ffee9d | 2020-06-17 12:55:35 +0530 | [diff] [blame] | 300 | camera_generate_pld(dev); |
| 301 | |
Matt Delco | 879b3c1 | 2020-06-17 13:10:22 +0530 | [diff] [blame] | 302 | camera_fill_ssdb_defaults(config); |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 303 | |
Matt Delco | 964033f | 2020-06-17 12:49:43 +0530 | [diff] [blame] | 304 | /* _DSM */ |
| 305 | camera_generate_dsm(dev); |
| 306 | |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 307 | ep00 = acpi_dp_new_table("EP00"); |
| 308 | acpi_dp_add_integer(ep00, "endpoint", DEFAULT_ENDPOINT); |
| 309 | acpi_dp_add_integer(ep00, "clock-lanes", 0); |
| 310 | |
| 311 | if (config->ssdb.lanes_used > 0) { |
| 312 | struct acpi_dp *lanes = acpi_dp_new_table("data-lanes"); |
| 313 | uint32_t i; |
| 314 | for (i = 1; i <= config->ssdb.lanes_used; ++i) |
| 315 | acpi_dp_add_integer(lanes, NULL, i); |
| 316 | acpi_dp_add_array(ep00, lanes); |
| 317 | } |
| 318 | |
| 319 | if (config->num_freq_entries) { |
| 320 | struct acpi_dp *freq = acpi_dp_new_table("link-frequencies"); |
| 321 | uint32_t i; |
| 322 | for (i = 0; i < config->num_freq_entries && i < MAX_LINK_FREQ_ENTRIES; ++i) |
| 323 | acpi_dp_add_integer(freq, NULL, config->link_freq[i]); |
| 324 | acpi_dp_add_array(ep00, freq); |
| 325 | } |
| 326 | |
| 327 | remote = acpi_dp_new_table("remote-endpoint"); |
| 328 | |
Matt Delco | 879b3c1 | 2020-06-17 13:10:22 +0530 | [diff] [blame] | 329 | if (config->remote_name) { |
| 330 | remote_name = config->remote_name; |
| 331 | } else { |
| 332 | if (cio2) |
| 333 | remote_name = acpi_device_path(cio2); |
| 334 | else |
| 335 | remote_name = DEFAULT_REMOTE_NAME; |
| 336 | } |
| 337 | |
| 338 | acpi_dp_add_reference(remote, NULL, remote_name); |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 339 | acpi_dp_add_integer(remote, NULL, config->ssdb.link_used); |
| 340 | acpi_dp_add_integer(remote, NULL, DEFAULT_ENDPOINT); |
| 341 | acpi_dp_add_array(ep00, remote); |
| 342 | |
| 343 | prt0 = acpi_dp_new_table("PRT0"); |
| 344 | |
| 345 | acpi_dp_add_integer(prt0, "port", 0); |
| 346 | acpi_dp_add_child(prt0, "endpoint0", ep00); |
| 347 | dsd = acpi_dp_new_table("_DSD"); |
| 348 | |
| 349 | acpi_dp_add_integer(dsd, "clock-frequency", config->ssdb.mclk_speed); |
| 350 | |
| 351 | if (config->ssdb.degree) |
| 352 | acpi_dp_add_integer(dsd, "rotation", 180); |
| 353 | |
| 354 | if (config->ssdb.vcm_type) { |
| 355 | if (config->vcm_name) { |
| 356 | vcm_name = config->vcm_name; |
| 357 | } else { |
| 358 | const struct device_path path = { |
| 359 | .type = DEVICE_PATH_I2C, |
| 360 | .i2c.device = config->vcm_address, |
| 361 | }; |
| 362 | struct device *vcm_dev = find_dev_path(dev->bus, &path); |
| 363 | struct drivers_intel_mipi_camera_config *vcm_config; |
| 364 | vcm_config = vcm_dev ? vcm_dev->chip_info : NULL; |
| 365 | |
| 366 | if (!vcm_config) |
| 367 | printk(BIOS_ERR, "Failed to get VCM\n"); |
| 368 | else if (vcm_config->device_type != INTEL_ACPI_CAMERA_VCM) |
| 369 | printk(BIOS_ERR, "Device isn't VCM\n"); |
| 370 | else |
| 371 | vcm_name = acpi_device_path(vcm_dev); |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | if (vcm_name) { |
| 376 | lens_focus = acpi_dp_new_table("lens-focus"); |
| 377 | acpi_dp_add_reference(lens_focus, NULL, vcm_name); |
| 378 | acpi_dp_add_array(dsd, lens_focus); |
| 379 | } |
| 380 | |
| 381 | acpi_dp_add_child(dsd, "port0", prt0); |
| 382 | acpi_dp_write(dsd); |
| 383 | |
| 384 | acpigen_write_method_serialized("SSDB", 0); |
| 385 | acpigen_write_return_byte_buffer((uint8_t *)&config->ssdb, sizeof(config->ssdb)); |
| 386 | acpigen_pop_len(); /* Method */ |
| 387 | |
| 388 | /* Fill Power Sequencing Data */ |
| 389 | if (config->num_pwdb_entries > 0) { |
| 390 | acpigen_write_method_serialized("PWDB", 0); |
| 391 | acpigen_write_return_byte_buffer((uint8_t *)&config->pwdb, |
| 392 | sizeof(struct intel_pwdb) * |
| 393 | config->num_pwdb_entries); |
| 394 | acpigen_pop_len(); /* Method */ |
| 395 | } |
| 396 | } |
| 397 | |
Matt Delco | c3a83bf | 2020-06-16 12:02:34 +0530 | [diff] [blame] | 398 | static void camera_fill_nvm(const struct device *dev) |
| 399 | { |
| 400 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
| 401 | struct acpi_dp *dsd = acpi_dp_new_table("_DSD"); |
| 402 | |
| 403 | /* It might be possible to default size or width based on type. */ |
| 404 | if (!config->disable_nvm_defaults && !config->nvm_pagesize) |
| 405 | config->nvm_pagesize = 1; |
| 406 | |
| 407 | if (!config->disable_nvm_defaults && !config->nvm_readonly) |
| 408 | config->nvm_readonly = 1; |
| 409 | |
| 410 | if (config->nvm_size) |
| 411 | acpi_dp_add_integer(dsd, "size", config->nvm_size); |
| 412 | |
| 413 | if (config->nvm_pagesize) |
| 414 | acpi_dp_add_integer(dsd, "pagesize", config->nvm_pagesize); |
| 415 | |
| 416 | if (config->nvm_readonly) |
| 417 | acpi_dp_add_integer(dsd, "read-only", config->nvm_readonly); |
| 418 | |
| 419 | if (config->nvm_width) |
| 420 | acpi_dp_add_integer(dsd, "address-width", config->nvm_width); |
| 421 | |
| 422 | acpi_dp_write(dsd); |
| 423 | } |
| 424 | |
| 425 | static void camera_fill_vcm(const struct device *dev) |
| 426 | { |
| 427 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
| 428 | struct acpi_dp *dsd; |
| 429 | |
| 430 | if (!config->vcm_compat) |
| 431 | return; |
| 432 | |
| 433 | dsd = acpi_dp_new_table("_DSD"); |
| 434 | acpi_dp_add_string(dsd, "compatible", config->vcm_compat); |
| 435 | acpi_dp_write(dsd); |
| 436 | } |
| 437 | |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 438 | static void write_pci_camera_device(const struct device *dev) |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 439 | { |
| 440 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 441 | |
| 442 | if (dev->path.type != DEVICE_PATH_PCI) { |
| 443 | printk(BIOS_ERR, "CIO2/IMGU devices require PCI\n"); |
| 444 | return; |
| 445 | } |
| 446 | |
| 447 | acpigen_write_device(acpi_device_name(dev)); |
| 448 | acpigen_write_ADR_pci_device(dev); |
| 449 | acpigen_write_name_string("_DDN", config->device_type == INTEL_ACPI_CAMERA_CIO2 ? |
| 450 | "Camera and Imaging Subsystem" : "Imaging Unit"); |
| 451 | } |
| 452 | |
| 453 | static void write_i2c_camera_device(const struct device *dev, const char *scope) |
| 454 | { |
| 455 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 456 | struct acpi_i2c i2c = { |
| 457 | .address = dev->path.i2c.device, |
| 458 | .mode_10bit = dev->path.i2c.mode_10bit, |
| 459 | .speed = I2C_SPEED_FAST, |
| 460 | .resource = scope, |
| 461 | }; |
| 462 | |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 463 | if (dev->path.type != DEVICE_PATH_I2C) { |
| 464 | printk(BIOS_ERR, "Non-CIO2/IMGU devices require I2C\n"); |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 465 | return; |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 466 | } |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 467 | |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 468 | acpigen_write_device(acpi_device_name(dev)); |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 469 | |
| 470 | if (config->device_type == INTEL_ACPI_CAMERA_SENSOR) |
| 471 | acpigen_write_name_integer("_ADR", 0); |
| 472 | |
| 473 | if (config->acpi_hid) |
| 474 | acpigen_write_name_string("_HID", config->acpi_hid); |
| 475 | else if (config->device_type == INTEL_ACPI_CAMERA_VCM) |
| 476 | acpigen_write_name_string("_HID", ACPI_DT_NAMESPACE_HID); |
| 477 | else if (config->device_type == INTEL_ACPI_CAMERA_NVM) |
| 478 | acpigen_write_name_string("_HID", "INT3499"); |
| 479 | |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 480 | acpigen_write_name_integer("_UID", config->acpi_uid); |
| 481 | acpigen_write_name_string("_DDN", config->chip_name); |
Hung-Te Lin | b4be50c | 2018-09-10 10:55:49 +0800 | [diff] [blame] | 482 | acpigen_write_STA(acpi_device_status(dev)); |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 483 | |
| 484 | /* Resources */ |
| 485 | acpigen_write_name("_CRS"); |
| 486 | acpigen_write_resourcetemplate_header(); |
| 487 | acpi_device_write_i2c(&i2c); |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 488 | |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 489 | /* |
| 490 | * The optional vcm/nvram devices are presumed to be on the same I2C bus as the camera |
| 491 | * sensor. |
| 492 | */ |
| 493 | if (config->device_type == INTEL_ACPI_CAMERA_SENSOR && |
| 494 | config->ssdb.vcm_type && config->vcm_address) { |
| 495 | struct acpi_i2c i2c_vcm = i2c; |
| 496 | i2c_vcm.address = config->vcm_address; |
| 497 | acpi_device_write_i2c(&i2c_vcm); |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 498 | } |
| 499 | |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 500 | if (config->device_type == INTEL_ACPI_CAMERA_SENSOR && |
| 501 | config->ssdb.rom_type && config->rom_address) { |
| 502 | struct acpi_i2c i2c_rom = i2c; |
| 503 | i2c_rom.address = config->rom_address; |
| 504 | acpi_device_write_i2c(&i2c_rom); |
| 505 | } |
| 506 | |
| 507 | acpigen_write_resourcetemplate_footer(); |
| 508 | } |
| 509 | |
| 510 | static void write_camera_device_common(const struct device *dev) |
| 511 | { |
| 512 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
| 513 | |
| 514 | /* Mark it as Camera related device */ |
| 515 | if (config->device_type == INTEL_ACPI_CAMERA_CIO2 || |
| 516 | config->device_type == INTEL_ACPI_CAMERA_IMGU || |
| 517 | config->device_type == INTEL_ACPI_CAMERA_SENSOR || |
| 518 | config->device_type == INTEL_ACPI_CAMERA_VCM) { |
| 519 | acpigen_write_name_integer("CAMD", config->device_type); |
| 520 | } |
Matt Delco | c3a83bf | 2020-06-16 12:02:34 +0530 | [diff] [blame] | 521 | |
| 522 | switch (config->device_type) { |
Matt Delco | 879b3c1 | 2020-06-17 13:10:22 +0530 | [diff] [blame] | 523 | case INTEL_ACPI_CAMERA_CIO2: |
| 524 | camera_fill_cio2(dev); |
| 525 | break; |
Matt Delco | 1245b1e | 2020-06-17 07:26:55 +0530 | [diff] [blame] | 526 | case INTEL_ACPI_CAMERA_SENSOR: |
| 527 | camera_fill_sensor(dev); |
| 528 | break; |
Matt Delco | c3a83bf | 2020-06-16 12:02:34 +0530 | [diff] [blame] | 529 | case INTEL_ACPI_CAMERA_VCM: |
| 530 | camera_fill_vcm(dev); |
| 531 | break; |
| 532 | case INTEL_ACPI_CAMERA_NVM: |
| 533 | camera_fill_nvm(dev); |
| 534 | break; |
| 535 | default: |
| 536 | break; |
| 537 | } |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 538 | } |
| 539 | |
| 540 | static void camera_fill_ssdt(const struct device *dev) |
| 541 | { |
| 542 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
| 543 | const char *scope = acpi_device_scope(dev); |
| 544 | |
| 545 | if (!dev->enabled || !scope) |
| 546 | return; |
| 547 | |
| 548 | /* Device */ |
| 549 | acpigen_write_scope(scope); |
| 550 | |
| 551 | if (config->device_type == INTEL_ACPI_CAMERA_CIO2 || |
| 552 | config->device_type == INTEL_ACPI_CAMERA_IMGU) |
| 553 | write_pci_camera_device(dev); |
| 554 | else |
| 555 | write_i2c_camera_device(dev, scope); |
| 556 | |
| 557 | write_camera_device_common(dev); |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 558 | |
| 559 | acpigen_pop_len(); /* Device */ |
| 560 | acpigen_pop_len(); /* Scope */ |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 561 | |
| 562 | if (dev->path.type == DEVICE_PATH_PCI) { |
| 563 | printk(BIOS_INFO, "%s: %s PCI address 0%x\n", acpi_device_path(dev), |
| 564 | dev->chip_ops->name, dev->path.pci.devfn); |
| 565 | } else { |
| 566 | printk(BIOS_INFO, "%s: %s I2C address 0%xh\n", acpi_device_path(dev), |
| 567 | dev->chip_ops->name, dev->path.i2c.device); |
| 568 | } |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 569 | } |
| 570 | |
Aaron Durbin | aa090cb | 2017-09-13 16:01:52 -0600 | [diff] [blame] | 571 | static const char *camera_acpi_name(const struct device *dev) |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 572 | { |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 573 | const char *prefix = NULL; |
| 574 | static char name[5]; |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 575 | struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
Matt Delco | 7d00293 | 2020-06-16 11:39:52 +0530 | [diff] [blame] | 576 | |
| 577 | if (config->acpi_name) |
| 578 | return config->acpi_name; |
| 579 | |
| 580 | switch (config->device_type) { |
| 581 | case INTEL_ACPI_CAMERA_CIO2: |
| 582 | return "CIO2"; |
| 583 | case INTEL_ACPI_CAMERA_IMGU: |
| 584 | return "IMGU"; |
| 585 | case INTEL_ACPI_CAMERA_PMIC: |
| 586 | return "PMIC"; |
| 587 | case INTEL_ACPI_CAMERA_SENSOR: |
| 588 | prefix = "CAM"; |
| 589 | break; |
| 590 | case INTEL_ACPI_CAMERA_VCM: |
| 591 | prefix = "VCM"; |
| 592 | break; |
| 593 | case INTEL_ACPI_CAMERA_NVM: |
| 594 | prefix = "NVM"; |
| 595 | break; |
| 596 | default: |
| 597 | printk(BIOS_ERR, "Invalid device type: %x\n", config->device_type); |
| 598 | return NULL; |
| 599 | } |
| 600 | |
| 601 | /* |
| 602 | * The camera # knows which link # they use, so that's used as the basis for the |
| 603 | * instance #. The VCM and NVM don't have this information, so the best we can go on is |
| 604 | * the _UID. |
| 605 | */ |
| 606 | snprintf(name, sizeof(name), "%s%1u", prefix, |
| 607 | config->device_type == INTEL_ACPI_CAMERA_SENSOR ? |
| 608 | config->ssdb.link_used : config->acpi_uid); |
| 609 | return name; |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | static struct device_operations camera_ops = { |
Nico Huber | 2f8ba69 | 2020-04-05 14:05:24 +0200 | [diff] [blame] | 613 | .read_resources = noop_read_resources, |
| 614 | .set_resources = noop_set_resources, |
Nico Huber | 68680dd | 2020-03-31 17:34:52 +0200 | [diff] [blame] | 615 | .acpi_name = camera_acpi_name, |
| 616 | .acpi_fill_ssdt = camera_fill_ssdt, |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 617 | }; |
| 618 | |
| 619 | static void camera_enable(struct device *dev) |
| 620 | { |
| 621 | dev->ops = &camera_ops; |
| 622 | } |
| 623 | |
| 624 | struct chip_operations drivers_intel_mipi_camera_ops = { |
| 625 | CHIP_NAME("Intel MIPI Camera Device") |
Elyes HAOUAS | 2aa3b16 | 2018-11-27 17:02:10 +0100 | [diff] [blame] | 626 | .enable_dev = camera_enable |
V Sowmya | 9f8023a | 2017-02-28 17:52:05 +0530 | [diff] [blame] | 627 | }; |